COMPOSITION FOR INCREASING EXPRESSION OF PGC-1alpha

Abstract

The present invention relates to a composition for preventing or treating diseases or symptoms associated with a reduction in the expression of peroxisome proliferator-activated receptor coactivator 1-alpha (PGC-1?), the composition comprising, as an active ingredient, a compound represented by the following general formula I, a salt thereof, or a solvate thereof.

Claims

1.-54. (canceled)

55. A method for preventing or treating of a disease or symptom associated with a decrease in peroxisome proliferator-activated receptor coactivator 1-alpha (PGC-1?) expression in a subject, the method comprising administering to a subject in need thereof a composition comprising a compound of General Formula I or a salt, hydrate, or solvate thereof:
S-(MS)p-(MS)qGeneral Formula I: wherein S is sialic acid, and (MS)p and (MS)q each are independently a monosaccharide residue.

56. The method of claim 55, further comprising, before the administering step, measuring the expression level of PGC-1? in cells from a sample isolated from the subject.

57. The method of claim 56, wherein it is observed whether or not the expression level of PGC-1? is decreased compared with a normal control group, and then, if decreased, the administering step is performed on the subject.

58. The method of claim 57, wherein the normal control group corresponds cells obtained from a normal person or a subject showing no disease or symptom associated with a decrease in PGC-1? expression.

59. The method of claim 56, wherein the sample is obtained from a particular tissue or organ.

60. The method of claim 55, wherein the administration is a topical administration with respect to a particular tissue in which the measured expression level of PGC-1? is decreased compared with the control group.

61.-66. (canceled)

67. The method of claim 55, wherein the disease or symptom associated with a decrease in PGC-1? expression comprises neurodegenerative diseases, metabolic diseases, topical fat removal and lipid metabolism-related diseases, aging and diseases caused by aging, and muscle loss (sarcopenia, cachexia), or disease caused by muscle loss.

68. The method of claim 55, wherein the compound is sialyllactose, wherein the sialyllactose is ?-NeuNAc-(2.fwdarw.3)-?-D-Gal-(1.fwdarw.4)-D-Glc or ?-NeuNAc-(2.fwdarw.6)-?-D-Gal-(1.fwdarw.4)-D-Glc.

69. The method of claim 67, wherein the neurodegenerative diseases comprise Alzheimer's disease (AD), amyotrophic lateral sclerosis (ALS, Lou Gehrig's disease), Duchenne muscular dystrophy, Parkinson's disease (PD), Huntington's disease (HD), Pick's disease, Kufs disease, Mohr-Tranebjerg syndrome, Wilson's disease, sporadic Alzheimer's disease, sporadic amyotrophic lateral sclerosis, sporadic Parkinson's disease, autonomic function change, sleep disorder, neuropsychiatric disorder, depression, schizophrenia, schizoaffective disorder, Korsakov's psychosis, mania, anxiety disorder, phobic disorder, learning or memory impairment, amnesia or age-related memory loss, attention deficit disorder, mood depressive disorder, major depressive disorder, anankastic personality disorder, psychoactive substance use disorder, panic disorder, bipolar affective disorder, migraine, hyperactivity disorder, or dyskinesia.

70. The method of claim 69, wherein the neurodegenerative diseases comprise acute, subacute, or chronic neurodegenerative diseases.

71. The method of claim 70, wherein the acute neurodegenerative diseases comprise stroke, cerebral infarction, cerebral hemorrhage, head injury, or spinal cord injury; and wherein the subacute neurodegenerative diseases comprise demyelinating disease, neurologic paraneoplastic syndrome, subacute combined degeneration, subacute necrotizing encephalitis, or subacute sclerosing encephalitis.

72. The method of claim 70, wherein the chronic neurodegenerative diseases comprise memory loss, senile dementia, vascular dementia, diffusive white matter disease (Binswanger's disease), dementia of endocrine or metabolic origin, dementia of head trauma and diffuse brain damage, dementia pugilistica, frontal lobe dementia, Alzheimer's disease, Pick's disease, diffuse Lewy Body disease, progressive supranuclear palsy (Steel-Richardson syndrome), multiple system atrophy, chronic epileptic conditions associated with neurodegeneration, amyotrophic lateral sclerosis, degenerative ataxia, cortical basal degeneration, ALS-Parkinson's-Dementia complex of Guam, subacute sclerosing panencephalitis, Huntington's disease, Parkinson's disease, synucleinopathies, primary progressive aphasia, striatonigral degeneration, Machado-Joseph disease/spinocerebellar ataxia, motor neuron diseases including olivopontocerebellar degenerations, Gilles De La Tourette's disease, bulbar and pseudobulbar palsy, spinal and spinobulbar muscular atrophy (Kennedy's disease), multiple sclerosis, primary lateral sclerosis, familial spastic paraplegia, Werdnig-Hoffmann disease, Kugelberg-Welander disease, Tay-Sach's disease, Sandhoff disease, familial spastic disease, Wohlfart-Kugelberg-Welander disease, spastic paraparesis, progressive multi-focal leukoencephalopathy, familial dysautonomia (Riley-Day syndrome), prion diseases, Creutzfeldt-Jakob, Gerstmann-Str?ussler-Scheinker disease, Kuru, fatal familial insomnia, deafness-dystonia syndrome, Leigh's disease, Leber's hereditary optic neuropathy, motor neuron disease, neuropathy syndrome, maternally inherited Leigh's disease, Friedreich's ataxia, or hereditary spastic paraplegia.

73. The method of claim 67, wherein the metabolic diseases, topical fat removal and lipid metabolism-related diseases, aging and diseases caused by aging, and muscle loss (sarcopenia, cachexia) and diseases caused by muscle loss comprise change of gluconeogenesis, cellulitis, gynecomastia, pseudogynecomastia, lipodystrophy, aging, photoaging, cutaneous traumas, reepithelialization of injuries, dehydration of the skin, xerosis, keratinization disorders, calluses, hard skin, lichen planus, skin lesions associated with lupus, seborrheic dermatitis, senile dermatitis, dandruff, cradle cap, seborrhea, hyperseborrhea of acne, solar dermatitis, seborrheic keratosis, senile keratosis, actinic keratosis, photoinduced keratosis, follicular keratosis, acne, nevus, change in the function of fibroblasts, nodular fasciitis, scleroderma, Dupuytren's contracture, Sebaceous gland disorder, acne rosacea, polymorphic acne, comedones, polymorphous acne, rosacea, nodulocystic acne, conglobate acne, senile acne, ichthyosis, Darier's disease, keratoderma palmoplantaris, leukoplakia, mucosal lichen, cutaneous lichen, eczema, common warts, flat warts, epidermodysplasia verruciformis, oral papillomatosis, lupus erythematosus, bullous diseases, bullous pemphigoid, scleroderma, pigmentation disorders, vitiligo, alopecia areata, Lewy Body disease, neurofibrillary tangles, Rosenthal fibers, Mallory's hyaline, myasthenia gravis, Gilles de la Tourette syndrome, multiple sclerosis, amyotrophic lateral sclerosis, progressive supranuclear palsy, epilepsy, Creutzfeldt-Jakob disease, deafness-dystonia syndrome, Leigh's disease, Leber's hereditary optic neuropathy, dystonia, motor neuron disease, neuropathy syndrome, ataxia and retinitis pigmentosa, maternally inherited Leigh's disease, Friedreich's ataxia, or hereditary spastic paraplegia.

74. The method of claim 55, wherein the composition is in a dosage form selected from the group consisting of solutions, suspensions, syrups, emulsions, liposomes, powders, granules, tablets, sustained-release preparations, or capsules.

75. The method of claim 74, wherein the composition is a composition for oral administration, and is in a dosage form of a drug delivery system comprising liposomes, or a sustained-release preparation.

76. The method of claim 74, wherein the composition is a composition for parenteral administration, and is in a dosage form of a drug delivery system comprising liposomes and an ultrasound contrast agent, or a sustained-release preparation.

77. The method of claim 55, wherein the composition is a pharmaceutical composition, a functional cosmetic composition, a nutraceutical composition, or a food composition.

78. The method of claim 55, wherein the salt is a pharmaceutically, cosmetically, or sitologically acceptable salts.

79. The method of claim 77, wherein the composition is incorporated in a sitological, cosmetical, or pharmaceutical delivery system or sustained-release system comprises liposomes, mixed liposomes, oleosomes, niosomes, ethosomes, millicapsules, microcapsules, nanocapsules, nanostructured lipid media, sponges, cyclodextrins, vesicles, micelles, mixed micelles of surfactants, surfactant-phospholipid mixed micelles, millispheres, microspheres, nanospheres, lipospheres, microemulsions, nanoemulsions, miniparticles, milliparticles, microparticles, nanoparticles, or solid lipid nanoparticles.

80. The method of claim 79, wherein the nanocapsules comprise microemulsions.

81. The method of claim 79, wherein the composition is for use by topical, oral, or parenteral application.

82. The method of claim 81, wherein the topical application is performed by iontophoresis, ultrasonophoresis, electroporation, mechanical pressure, osmotic pressure gradient, occlusive cure, microinjection, needless injection by pressure, use of micro-electro-patches, use of face masks, or any combination thereof.

83. The method of claim 55, wherein the composition increases PGC-1? expression.

84. The method of claim 55, wherein the composition is for use in the treatment and/or care of skin.

85. The method of claim 55, wherein the composition is for use in reducing the volume of adipose tissue or in reducing the content of triglycerides in adipose tissue.

86. The method of claim 85, wherein the adipose tissue is subcutaneous adipose tissue.

87. The method of claim 86, wherein the subcutaneous adipose tissue is subcutaneous adipose tissue of the femoral region, chest, a lower part of the neck, neckline, buttocks, face, lips, cheeks, eyelids and/or hands.

88. The method of claim 85, wherein the adipose tissue is any adipose tissue that may be formed in the body, including adipose tissue formed by fat embolism.

89. The method of claim 84, wherein the treatment and/or care is the reduction, delay and/or prevention of a symptom of aging and/or photoaging.

90. The method of claim 55, wherein the composition is for use in increasing the skin temperature.

91. The method of claim 77, wherein the composition comprises a sitologically, cosmetically, or pharmaceutically effective amount of at least one general formula I or acceptable salt thereof, and at least one sitologically, cosmetically, or pharmaceutically acceptable excipient or adjuvant.

92. The method of claim 77, wherein general formula I, a mixture thereof, and/or a sitologically, cosmetically, or pharmaceutically acceptable salt thereof is confirmed in a state of being adsorbed on a sitologically, cosmetically, or pharmaceutically acceptable solid organic polymer or solid mineral support, which is formed by talc, bentonite, silica, starch, and maltodextrin.

93. The method of claim 77, wherein the composition is provided in a dosage form selected from the group consisting of creams, multiple emulsions, anhydrous compositions, aqueous dispersions, oils, milks, balsams, foams, lotions, gels, cream gels, hydroalcoholic solutions, hydroglycolic solutions, hydrogel, liniments, sera, soaps, shampoos, conditioners, serums, ointments, mousses, pomades, powders, bars, pencils, sprays, aerosols, capsules, gelatin capsules, soft capsules, hard capsules, tablets, sugar coated tablets, granules, chewing gum, solutions, suspensions, emulsions, syrups, elixirs, polysaccharide films, jellies, and gelatins.

94. The method of claim 77, wherein the composition is confirmed in a state of being incorporated into a product selected from the group consisting of under-eye concealers, makeup foundations, make-up removal lotions, make-up removal milks, eye shadows, lipsticks, lip glosses, lip protectors, and powders.

95. The method of claim 77, wherein general formula I, a mixture thereof, and/or a sitologically, cosmetically, or pharmaceutically acceptable salt thereof is incorporated into fabrics, nonwoven fabrics, or medical apparatuses.

96. The method of claim 95, wherein the fabrics, nonwoven fabrics, or medical apparatuses are selected from the group consisting of bandages, gauzes, t-shirts, tights, socks, underwear, girdles, gloves, diapers, sanitary napkins, dressings, bedspreads, wipes, adhesive patches, non-adhesive patches, occlusive patches, micro-electric patches, and face masks.

97. The method of claim 77, wherein the composition further comprises a sitologically, cosmetically, or pharmaceutically effective amount of at least one adjuvant selected from the group consisting of other PGC-1? regulators, other PPAR? regulators, preparations for reducing adipocyte triglycerides, preparations for delaying adipocyte differentiation, lipolytic agents or lipolysis stimulators, anti-cellulite agents, adipogenetic agents, acetylcholine-receptor clustering inhibitors, muscle contraction inhibitors, anti-cholinergic agents, elastase inhibitors, matrix metalloproteinase inhibitors, melanin synthesis stimulators or inhibitors or depigmenting agents, propigmenting agents, self-tanning agents, anti-aging agents, NO-synthase inhibitors, 5?-reductase-inhibitors, lysyl-hydroxylase and/or prolyl-hydroxylase inhibitors, anti-oxidant agents, free radical scavengers and/or anti-atmospheric pollution agents, reactive carbonyl species scavengers, anti-glycation agents, anti-histaminic agents, anti-viral agents, anti-parasitic agents, emulsifiers, emollients, organic solvents, liquid propellants, skin conditioners, wetting agents, moisture retaining substances, ?- and ?-hydroxy acids, moisturizing agents, dermal hydrolases, vitamins, amino acids, proteins, pigments or colorants, dyes, biopolymers, gelling polymers, viscosity increasing agents, surfactants, softening agents, binders, preservatives, anti-wrinkling agents, agents capable of reducing or treating bags under eyes, exfoliating agents, desquamating agents, keratolytic agents, anti-bacterial agents, anti-fungal agents, fungistatic agents, bactericidal agents, bacteriostatic agents, elastin synthesis stimulators, decorin synthesis stimulators, laminin synthesis stimulators, defensin stimulators, chaperone stimulators, cAMP synthesis stimulators, thermal-shock proteins, HSP70 synthesis stimulators, thermal-shock protein synthesis stimulators, aquaporin synthesis stimulators, hyaluronic acid synthesis stimulators, fibronectin synthesis stimulators, sirtuin synthesis stimulators, agents stimulating the synthesis of stratum corneum components and lipids, ceramides, fatty acids, collagen degradation inhibitors, elastin degradation inhibitors, serine protease inhibitors, fibroblast proliferation stimulators, keratinocyte proliferation stimulators, melanocyte proliferation stimulators, keratinocyte differentiation stimulators, acetylcholinesterase inhibitors, skin relaxants, glycosaminoglycan synthesis stimulators, hyperkeratosis inhibitors, comedolytic agents, DNA repairing agents, DNA protecting agents, stabilizers, anti-pruritic agents, agents for the treatment and/or care of sensitive skin, firming agents, redensifying agents, restructuring agents, anti-stretch mark agents, sebum production regulators, anti-sudorific agents, healing stimulators, coadjuvant healing agents, re-epithelialization stimulators, coadjuvant re-epithelialization agents, cytokine growth factors, sedative agents, anti-inflammatory agents, anesthetic agents, agents acting on capillary circulation and/or microcirculation, vascular permeability inhibitors, venotonic agents, agents acting on cellular metabolisms, agents for improving dermal-epidermal junction, hair growth inducers or retarders, flavoring agents, chelating agents, plant extracts, essential oils, marine extracts, agents obtained from biological fermentation processes, mineral salts, cell extracts, sunscreens, and organic or mineral photoprotective agents having activity against UV A and/or B, and mixtures thereof.

98. The method of claim 97, wherein the adjuvant is derived from synthesis origin, plant extracts, biological fermentation processes, or a combination of synthesis or biotechnology processes.

99. The method of claim 97, wherein the composition further comprises a pharmaceutically effective amount of at least one anti-diabetic agent.

100. The method of claim 98, wherein the adjuvant is selected from the group consisting of agents for increasing or decreasing the content of triglycerides in adipose tissue, agents for increasing or delaying adipocyte differentiation, lipolytic agents and/or venotonic agents.

101. The method of claim 100, wherein the agents for increasing or decreasing the content of triglycerides in adipose tissue, agents for delaying adipocyte differentiation, anti-cellulite agents, lipolytic agents and/or venotonic agents are selected from the group consisting of forskolin, caffeine, escin, carnitine, coenzyme A, lipase, glaucine, esculin, visnadine, sarsasapogenin, extracts of Coffea Arabica, extracts of Coleus forskohlii, extracts of Anemarrhena apshodeloides, and a mixture of water, glycerin, lecithin, caffeine, extracts of Butcher's broom (Ruscus Aculeatus), maltodextrin, silica, triethanolamine hydroiodide, propylene glycol, extracts of ivy (Hedera helix), carnitine, escin, tripepide-1, xanthan gum, carrageenan (Chondrus crispus), and disodium EDTA.

102. The method of claim 101, wherein the adjuvant is selected from the group consisting of firming agents, redensifying agents, and restructuring agents.

103. The method of claim 102, wherein the firming agents, redensifying agents, and restructuring agents are selected from the group consisting of Pseudoalteromonas fermented extracts, tripeptide-10 citrulline, acetylarginyl-tryptophyl diphenylglicine, hexapeptide-10, and a mixture of Pseudoalteromonas fermentation extracts, hydrolyzed wheat proteins, hydrolyzed soy proteins, tripeptide-10 citrulline, and tripeptide-1.

104. The method of claim 102, wherein the adjuvant is selected from anti-stretch mark agents.

105. The method of claim 104, wherein the anti-stretch mark agents are selected from the group consisting of extracts of Centella Asiatica, extracts of Rosa canina, extracts of Rosa moschata, extracts of Rosa rubiginosa, and a mixture of water, caprylyl/capryl glucoside, lecithin, glycerin, Pseudoalteromonas ferment extract, acetyl tripeptide-30 citrulline, pentapeptide-18, xanthan gum, and caprylyl glycol.

106. The method of claim 104, wherein the adjuvant is selected from anti-wrinkling agents or anti-aging agents.

107. The method of claim 106, wherein the anti-wrinkling agents or anti-aging agents are selected from the group consisting of: acetyl heptapeptide-8; acetyl heptapeptide-4; acetyl octapeptide-3; pentapeptide-18; acetylhexapeptide-30; a mixture of hydrolyzed wheat proteins, hydrolyzed soy proteins, and tripeptide-1; a mixture of diaminopropionyl tripeptide-33, tripeptide-10 citrulline, Pseudoalteromonas fermentation extract, hydrolyzed wheat proteins, hydrolyzed soy proteins, and tripeptide-10 citrulline, and tripeptide-1; a mixture of acetyl tetrapeptide-5, acetyltripeptide-30 citrulline, acetylarginyltriphenyldiphenylglycine, acetyltetrapeptide-22, dimethylmethoxychromanol, dimethylmethoxychromanyl palmitate, Pseudoalteromonas fermentation extract, lysine HCl, lecithin, and tripeptide-9 citrulline; and a mixture of lysine HCl, lecithin and tripeptide 10 citrulline.

108. The method of claim 68, wherein the sialyllactose is ?-NeuNAc-(2.fwdarw.6)-?-D-Gal-(1.fwdarw.4)-D-Glc.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0153] FIGS. 1a, 1b, and 1c show the gene expression changes in organs (FIG. 1a), skeletal muscles (FIG. 1b), and abdominal fat (FIG. 1c) by the treatment with 6-sialyllactoase (SL) in normal mouse models. FIGS. 1d, 1e, and 1f show the gene expression changes in organs (FIG. 1d), skeletal muscles (FIG. 1e), and abdominal fat (FIG. 1f) by the treatment with 3-SL in normal mouse models.

[0154] FIGS. 2a and 2b show the numerical values (FIG. 2a) and western blots (FIG. 2b) of PGC-1? protein expression changes in the brain and hippocampus.

[0155] FIG. 3 shows the gene expression changes by the treatment with SL (3-SL & 6-SL) compositions in nerve cells.

[0156] FIG. 4 shows the gene expression changes by the treatment with SL (3-SL & 6-SL) compositions in C2C12 immature muscle cells.

[0157] FIGS. 5a and 5b show the numerical values of (gene expression level of the (Alzheimer's disease model) group)/gene expression level of the control group), (gene expression level of the (Alzheimer's disease model+3-SL) group)/gene expression level of the control group), and (gene expression level of the (Alzheimer's disease model+6-SL) group)/gene expression level of the control group) in respective organs with respect to relative gene expression changes in the brain and hippocampus compared with the control group.

[0158] FIG. 6 shows the numerical value of escape time in the cognitive ability test when a control group, an (Alzheimer's disease model) group, an (Alzheimer's disease model+3-SL) group, and an (Alzheimer's disease model+6-SL) group were subjected to the cognitive ability test (Morris water maze) for 7 days.

[0159] FIGS. 7a and 7b show the gene expression changes by the treatment with SL (3-SL & 6-SL) compositions in Parkinson's disease models.

[0160] FIG. 8 shows the behavior test results in Parkinson's disease animal models.

[0161] FIGS. 9a and 9b show the gene expression changes by the treatment with SL compositions in epilepsy/convulsion brain disease models.

[0162] FIGS. 10a and 10b show the gene expression changes by the treatment with SL (3-SL & 6-SL) compositions in Huntington's disease models.

[0163] FIG. 11 shows the rotarod travel test results in Huntington's disease models.

[0164] FIG. 12 shows the observation results of ischemic volume in ischemic models.

[0165] FIG. 13 shows the MLPT test score changes by SL (3-SL & 6-SL) treatment after ICH induction

[0166] FIG. 14 shows the gene expression changes by the treatment with SL compositions in mouse models.

[0167] FIG. 15 shows subcutaneous fat reduction effects when SL (3-SL & 6-SL) compositions were topically administered in mouse models.

[0168] FIGS. 16a and 16b show the gene expression changes by the treatment with SL (3-SL & 6-SL) compositions in aging stimulating models.

[0169] FIGS. 17a and 17b show the measurement results of intercellular H.sub.2O.sub.2 (ROS values) (FIG. 17a) and the measurement results of mitochondrial superoxide production (FIG. 17b).

[0170] FIGS. 18a and 18b show the measurement results of telomerase activity by the administration of SL (3-SL & 6-SL) compositions.

[0171] FIGS. 19a and 19b show the measurement results of intercellular H.sub.2O.sub.2 (ROS values) (FIG. 19a) and the measurement results of mitochondrial superoxide production (FIG. 19b).

[0172] FIGS. 20a and 20b show the analysis results of telomerase activity by the treatment of arteriosclerosis models (ApoE.sup.?/?; FIG. 20a) and MASMs (FIG. 20b) with SL (3-SL & 6-SL).

[0173] FIGS. 21a and 21b show the gene expression changes by the treatment with SL (3-SL & 6-SL) compositions in skin test models.

[0174] FIGS. 22a and 22b show the intercellular fat changes when 6-sialyllactose (FIG. 22a) and 3-sialyllactose (FIG. 22b) were administered into differentiated adipocytes.

[0175] FIGS. 23a and 23b show the optical microscopic images of cells, showing the intercellular fat changes when 6-sialyllactose (FIG. 23a) and 3-sialyllactose (FIG. 23b) were administered into differentiated adipocytes.

[0176] FIG. 24 shows the effect of 6-sialyllactose on cell viability in differentiated adipocytes.

[0177] FIG. 25 shows the glycerol secretion changes by sialyllactose in differentiated adipocytes.

[0178] FIGS. 26a and 26b show the skin changes of high-fat diet mice by subcontenous injection of sialyllactose.

DETAILED DESCRIPTION

[0179] Hereinafter, the present invention will be described in detail with reference to examples. These examples are only for illustrating the present invention more specifically, and it will be apparent to those skilled in the art that the scope of the present invention is not limited by these examples.

Example 1: Evaluation of Gene Expression Stimulation by Treatment with SL (3-SL & 6-SL) Compositions in Normal Mouse Models

[0180] In order to investigate relative gene expression changes by organs compared with before SL (3-SL & 6-SL) aministration, 4-week-old C57BL/6 mice were purchased from Dooyeul Biotech (Korea). Water was freely accessible, and a commercially available pellet feed (Dooyeul Biotech, Korea) was given for two weeks. At 6 weeks of age, the mice (initial body weight, average 21.4?1.1 g) were randomly divided into three groups (composed of eight mice for each group) below, and the diets were maintained for 10 weeks (a total of 24 animals): [0181] Control group: Normal diet mouse group [0182] 3-SL administration group: Separate administration with 3-sialyllactose (3-SL, Sigma) (oral administration of 0.1 mg per kg of mouse weight per day) in addition to the normal diet group [0183] 6-SL administration group: Separate administration with 6-sialyllactose (6-SL, Sigma) (oral administration of 0.1 mg per kg of mouse weight per day) in addition to the normal diet group

[0184] Sialyllactose or deionized water was orally administered daily. The mice were kept in animal rooms for 10 weeks, fasted for 12 hours, and sacrificed. The dietary intake and body weight change were measured every 5 days. 3-Sialyllactose (3-N-acetylneuraminyl-D-lactose, 3-sialyl-D-lactose, or ?-NeuNAc-(2.fwdarw.3)-?-D-Gal-(1.fwdarw.4)-DGlc) or 6-sialyllactose (6-N-acetylneuraminyl-lactose, 6-sialyl-D-lactose, or ?-NeuNAc-(2.fwdarw.6)-?-D-Gal-(1.fwdarw.4)-D-Glc) was purchased from Sigma-Aldrich.

[0185] The gene expression changes by administration of the SL (3-SL & 6-SL) compositions were quantitatively compared for eight main organs (heart, hippocampus, brain, spinal cord, lung, liver, spleen, and kidney), three skeletal muscles (soleus muscle, quadriceps femoris muscle, and gastrocnemius muscle), and abdominal fat. RNA was extracted by TRIzol agent (Invitrogen). cDNA was synthesized by using RNA, which has been extracted as above and quantified, and a reverse transcription system (Promega, USA). The expression patterns of PGC-1? and related genes were measured by using pre-designed primers and probes (Applied Biosystems; PGC-1?, Mm00447181_m1, GAPDH, and Mm99999915_q1) for the synthesized cDNA and analysis targets (Fndc5, PGC-1?, Erra, UCP1, SOD2, and GPX1). The Rotor-Gene 3000 system (Corbett Research, Sydney, Australia) was used for PCR reaction and analysis, and the results are shown in FIG. 1.

[0186] In FIG. 1, the relative gene expression changes by organs compared with before SL (3-SL & 6-SL) administration were expressed by values of (gene expression levels of SL-administration groups)/(gene expression level of the control group). As for 6-SL, as can be seen from most of the organs (FIG. 1a), skeletal muscles (FIG. 1b), and abdominal fat (FIG. 1c), the 6-SL administration groups were higher than the negative control group in view of the expression levels of several analysis targets (Fndc5, PGC-1?, Erra, and UCP1) including PGC-1? in several body parts. That is, it could be confirmed that 6-SL stimulated the expression of PGC-1? and related genes in several organs, muscles, and fat of normal mice. As for 3-SL, as can be seen from most of the organs (FIG. 1d), skeletal muscles (FIG. 1e), and abdominal fat (FIG. 1f), the 3-SL administration groups were higher than the negative control group in view of the expression levels of several analysis targets in several body parts, but were less effective than the 6-SL administration groups.

[0187] FIGS. 1a, 1b, and 1c show the gene expression changes in organs (FIG. 1a), skeletal muscles (FIG. 1b), and abdominal fat (FIG. 1c) by the treatment with 6-SL in normal mouse models. FIGS. 1d, 1e, and 1f show the gene expression changes in organs (FIG. 1d), skeletal muscles (FIG. 1e), and abdominal fat (FIG. 1f) by the treatment with 3-SL in normal mouse models. In FIGS. 1a to 1f, the vertical axes represent the relative gene expression ratio compared with the control group.

Example 2: Evaluation of PGC-1? Protein Expression Stimulation by the Treatment with SL (3-SL & 6-SL) Compositions in the Brain and Hippocampus of Old Mouse Models

[0188] In order to investigate the relative protein expression in the brain compared with before SL (3-SL & 6-SL) aministration, 4-week-old ICR mice were purchased from Central Lab Animal (Korea). Water was freely accessible, and a commercially available pellet feed (Dooyeul Biotech, Korea) was given for two weeks. At 6 weeks of age, the mice (initial body weight, average 20.3?1.5 g) were randomly divided into three groups (composed of eight mice for each group) below, and the diets were maintained for 42 weeks (a total of 24 animals). [0189] Control group: Normal diet mouse group [0190] 3-SL administration group: Treatment with 3-sialyllactose (3-SL, Sigma) (oral administration of 0.1 mg per kg of mouse weight per day) in addition to the normal diet group [0191] 6-SL administration group: Treatment with 6-sialyllactose (6-SL, Sigma) (oral administration of 0.1 mg per kg of mouse weight per day) in addition to the normal diet group

[0192] Sialyllactose or DW was orally administered daily. The mice were kept in animal rooms for 42 weeks, fasted for 12 hours, and sacrificed. The dietary intake and body weight change were measured every 5 days. 3-Sialyllactose (3-N-Acetylneuraminyl-D-lactose, 3-Sialyl-D-lactose, or ?-NeuNAc-(2.fwdarw.3)-?-D-Gal-(1.fwdarw.4)-DGlc) or 6-sialyllactose (6-N-acetylneuraminyl-lactose, 6-sialyl-D-lactose, or ?-NeuNAc-(2.fwdarw.6)-?-D-Gal-(1.fwdarw.4)-D-Glc) was purchased from Sigma-Aldrich.

[0193] FIG. 2 shows numerical values (FIG. 2a) and western blots (FIG. 2b) of PGC-1? protein expression changes in the brain and hippocampus. In FIG. 2b, BB1 6 represents 6-SL. The PGC-1? protein expression level and GAPDH protein expression level in each site were quantified, and the relative ratio of the values, (PGC-1? protein expression level)/(GAPDH protein expression level) was numerically expressed for the control group, 3-SL administration group, and 6-SL administration group. The PGC-1? expression level was much higher in the 6-SL administration group rather than the negative control group in both of the brain and hippocampus. That is, it could be confirmed that 6-SL stimulated the expression of PGC-1? protein in several sites of the brain of normal mice.

[0194] FIG. 2 shows the PGC-1? protein expression changes in the brain and hippocampus by the administration of SL compositions in aged mouse models. 6-Week-old male ICR mice were grouped into the control group and the 6-SL administration group (8 animals per group), which were then subjected to a dietary control test for 42 weeks. The mice were sacrificed and then the brain and hippocampus were extracted. The cerebral cortex was extracted from the brain. The PGC-1? protein expression changes in the extracted brain and hippocampus were expressed by numerical values (FIG. 2a) and western blots (FIG. 2b).

Example 3: Evaluation of Gene Expression Stimulation by Treatment with SL (3-SL & 6-SL) Compositions in Nerve Cell Test

[0195] In order to investigate whether SL (3-SL & 6-SL) also has an effect of stimulating the expression of PGC-1? gene and related genes in nerve cells, the following test was carried out.

[0196] Neuroblasts (Neuro-2a, American Type Culture Collection, USA) were cultured in DMEM supplemented with 10% fetal bovine serum, 1000 penicillin, and 0.1 mg/mL streptomycin in each well of 6-well plates at 37? C. in 5% CO.sub.2/95% atmospheric conditions. Neuro-2a cells correspond to the fast-growing mouse neuroblastoma cell line. After Neuro-2a cells were seeded at a density of 6000 cells per well, SL was added at a concentration of 0.1 mg/ml into the wells showing a confluency of about 5?10.sup.6 cells/ml, followed by incubation for 24 hours under the same conditions. SL (3-SL or 6-SL) materials were the same as those described in Example 1. Unless otherwise stated, SL (3-SL or 6-SL) and the use concentrations thereof are understood to be the same as those described in Example 1. The negative control group was treated with physiological saline with 1/1000 of the volume of the medium. The cells treated with each sample were incubated at 37? C. for 24 hours, and then washed twice with cool saline solution, and RNA was extracted using TRIzol agent (Invitrogen). The expression patterns of PGC-1? and related genes were measured by using pre-designed primers and probes (Applied Biosystems; PGC-1?, Mm00447181_m1, GAPDH, and Mm99999915_q1) for the synthesized cDNA and analysis targets (Fndc5, PGC-1?, Erra, UCP1, BDNF, SOD2, and GPX1). The Rotor-Gene 3000 system (Corbett Research, Sydney, Australia) was used for PCR reaction and analysis, and the results are shown in FIG. 3.

[0197] FIG. 3 shows the gene expression changes by the treatment with SL (3-SL & 6-SL) composition in nerve cells. As shown in FIG. 3, as a result of comparing the administration groups, in which Neuro-2a cells were treated with SL (3-SL & 6-SL) for 24 hours, and the control group without the treatment, the SL (3-SL & 6-SL) administration groups showed significant increases in expression levels of several analysis targets (Fndc5, PGC-1?, Erra, UCP1, BDNF, SOD2, and GPX1) including PGC-1?, compared with the negative control group. It could be confirmed that 6-SL stimulated the expression of PGC-1? and related genes in nerve cells, and the stimulation effect of 3-SL was lower than that of 6-SL.

Example 4: Evaluation of Gene Expression Stimulation by Treatment with SL (3-SL & 6-SL) Compositions in Muscle Cell Test

[0198] In order to investigate whether SL actually has an effect of stimulating the expression of PGC-1? gene in muscle cells, the following test was carried out.

[0199] C2C12 immature muscle cells were prepared from the purchase from American Tissue Culture Collection (ATCC, USA). The cells were cultured in Dulbecco's modified Eagle's medium (DMEM, Gibco, USA) supplemented with 10% fetal bovine serum (FBS, USA) in a 5% CO.sub.2 incubator at 37? C. until the cells grew to confluency of 70%, while the medium was exchanged every two days. The differentiation into muscle cells was induced by culturing in a medium containing 2% horse serum (HS, Gibco, USA). The muscle cells cultured in the medium containing 2% HS for 4 days were treated with SL with various concentrations. The negative control group was treated with physiological saline with 1/1000 of the volume of the medium. The cells treated with each sample were incubated at 37? C. for 24 hours, and then washed twice with cool saline solution, and RNA was extracted using TRIzol agent (Invitrogen). cDNA was synthesized by using 1 ?g/?l of RNA, which has been extracted as above and quantified, and a reverse transcription system (Promega, USA).

[0200] The expression patterns of PGC-1? and related genes were measured by using pre-designed primers and probes (Applied Biosystems; PGC-1?, Mm00447181_m1, GAPDH, and Mm99999915_q1) for the synthesized cDNA and analysis targets (Fndc5, PGC-1?, Erra, UCP1, SOD2, and GPX1). The Rotor-Gene 3000 system (Corbett Research, Sydney, Australia) was used for PCR reaction and analysis, and the results are shown in FIG. 4.

[0201] FIG. 4 shows the gene expression changes by the treatment with SL (3-SL & 6-SL) compositions in C2C12 immature muscle cells. As shown in FIG. 4, as a result of comparing the administration groups, in which C2C12 immature muscle cells were treated with SL (3-SL & 6-SL) for 24 hours, and the control group without the treatment, the SL (3-SL & 6-SL) administration groups showed significant increases in expression levels of several analysis targets (Fndc5, PGC-1?, Erra, UCP1, BDNF, SOD2, and GPX1) including PGC-1?, compared with the negative control group. It could be confirmed that 6-SL stimulated the expression of PGC-1? and related genes in C2C12 immature mucle cells, and the stimulation effect of 3-SL was lower than that of 6-SL.

Example 5: Evaluations of Gene Expression Stimulation and Cognitive Ability Improvement by Treatment with SL (3-SL & 6-SL) Compositions in Alzheimer's Brain Disease Models

[0202] In order to investigate the changes in gene expression and cognitive ability by the treatment with SL (3-SL & 6-SL) compositions in Alzheimer's brain disease models, 6-week-old mice were purchased from Central Lab Animal (Korea). Water was freely accessible, and a commercially available pellet feed (Dooyeul Biotech, Korea) was given for two weeks. At 8 weeks of age, the mice were divided into three groups (composed of eight mice for each group): Eight 8-week-old male c57/BL6 mice (normal mice; initial body weight, average 35.6?3.3 g) treated with a normal diet were used for a control group. The 8-week-old male Alzheimer's disease model mice (3?Tg; initial body weight, average 33.9?2.8 g) were randomly divided into three different dietary treatment groups (eight mice per group) below, and these diets were maintained for 10 weeks (total 32 animals): [0203] Control group: Normal mice fed with a normal diet without SL administration (8 animals) [0204] (Alzheimer's disease model) group: Alzheimer disease models fed with a normal diet without SL administration (8 animals) [0205] (Alzheimer's disease model+3-SL) group: Alzheimer disease models separately administered with 3-sialyllactose (3-SL, Sigma) (oral administration of 0.1 mg per kg of mouse weight per day) in addition to the normal dietary group (8 animals) [0206] (Alzheimer's disease model+6-SL) group: Alzheimer disease models separately administered with 6-sialyllactose (6-SL, Sigma) (oral administration of 0.1 mg per kg of mouse weight per day) in addition to the normal dietary group (8 animals)

[0207] Sialyllactose or DW was orally administered daily. The mice were kept in animal rooms for 10 weeks, fasted for 12 hours, and sacrificed. The dietary intake and body weight change were measured every 5 days. 3-Sialyllactose (3-N-Acetylneuraminyl-D-lactose, 3-Sialyl-D-lactose, or ?-NeuNAc-(2.fwdarw.3)-?-D-Gal-(1.fwdarw.4)-DGlc) or 6-sialyllactose (6-N-acetylneuraminyl-lactose, 6-sialyl-D-lactose, or ?-NeuNAc-(2.fwdarw.6)-?-D-Gal-(1.fwdarw.4)-D-Glc) was purchased from Sigma-Aldrich.

[0208] The gene expression changes by the treatment with SL (3-SL & 6-SL) compositions were quantitatively compared in two main organs (brain and hippocampus) associated with bran diseases. The cerebral cortex was used for the brain. RNA was extracted by TRIzol agent (Invitrogen). cDNA was synthesized by using RNA, which has been extracted as above and quantified, and a reverse transcription system (Promega, USA). The expression patterns of PGC-1? and related genes were measured by using pre-designed primers and probes (Applied Biosystems; PGC-1?, Mm00447181_m1, GAPDH, and Mm99999915_q1) for the synthesized cDNA and analysis targets (Fndc5, PGC-1?, Erra, UCP1, BDNF, SOD2, and GPX1). The Rotor-Gene 3000 system (Corbett Research, Sydney, Australia) was used for PCR reaction and analysis, and the results are shown in FIG. 5.

[0209] FIG. 5 shows the gene expression changes by the treatment with SL (3-SL & 6-SL) compositions in Alzheimer disease models. FIG. 5 shows the numerical values of (gene expression level of the (Alzheimer's disease model) group)/gene expression level of the control group), (gene expression level of the (Alzheimer's disease model+3-SL) group)/gene expression level of the control group), and (gene expression level of the (Alzheimer's disease model+6-SL) group)/gene expression level of the control group) in respective organs with respect to relative gene expression changes in the brain and hippocampus compared with the control group. The 8-week-old male Alzheimer's disease model (3?Tg) mice were grouped into SL administration groups and an SL non-administration group (8 animals per group), and then subjected to a dietary control test for 10 weeks, and the gene expression levels in the test groups were compared with that in the normal mice (c57/BL6) with a normal diet. As shown in FIG. 5, on the basis of the normal mouse control group with a normal diet, the expression levels of several analysis targets (Fndc5, Erra, UCP1, BDNF, SOD2, and GPX1) including PGC-1? in the brain (FIG. 5a) and hippocampus (FIG. 5b) were somewhat lower in the 6-SL administration (Alzheimer's disease model+6-SL) group compared with the normal control group, but were very high in the 6-SL administration (Alzheimer's disease model+6-SL) group compared with the SL-non-administration (Alzheimer's disease model) group. It could be seen that 3-SL was relatively low compared with 6-SL in view of related gene expression stimulation effects. That is, 6-SL showed significant increases in expression levels of PGC-1? and related genes (Fndc5, PGC-1?, Erra, UCP1, BDNF, SOD2, and GPX1) in the brain and hippocampus of Alzhhimer's deisease model mice.

[0210] FIG. 6 shows the numerical values of escape time in the cognitive ability test when a control group, an (Alzheimer's disease model) group, an (Alzheimer's disease model+3-SL) group, and an (Alzheimer's disease model+6-SL) group were subjected to the cognitive ability test (Morris water maze) for 7 days. It could be seen that the escape tim in the cognitive ability test was almost constant without improvement even after the lapse of the test time in the SL non-administration (Alzheimer's disease model) group, but the escape time in the test in the 6-SL administration (Alzheimer's disease model+6-SL) group was definitely fast, but somewhat decreased compared with the normal mouse control group with a normal diet. It could be seen that 3-SL was relatively low compared with 6-SL in view of the cognitive ability improvement effects. That is, it could be confirmed that 6-SL improved the cognitive ability best in Alzheimer's disease model mice.

Example 6: Evaluations of Gene Expression Stimulation and Behavior Improvement by Treatment with SL (3-SL & 6-SL) Compositions in Parkinson's Brain Disease Models

[0211] In order to investigate the changes in gene expression and behavior improvement by the treatment with SL (3-SL & 6-SL) compositions in Parkinson's brain disease models, 13-week-old normal SD rats and Parkinson's brain disease models were purchased from Central Lab Animal (Korea). Water was freely accessible, and a commercially available pellet feed (Dooyeul Biotech, Korea) was given for one week. At 14 weeks of age, the SD rats were divided into four groups (composed of 8 animals per group): Eight 14-week-old male SD rats (normal rats; initial body weight, average 355.6?32.3 g) treated with a normal diet were used for a control group. The 6-OHDA induced SD rat Parkinson's disease models, which were administered with 6-hydroxydopamine (6-OHDA) at 8 weeks of age and supplied at 13 weeks of age, were randomly divided into three different dietary treatment groups below (8 animals per group), and these diets were maintained from 14 weeks of age for 10 weeks (total 32 animals): [0212] Control group: Normal rats fed with a normal diet without SL administration (8 animals) [0213] (Parkinson's disease model) group: Parkinson's disease models fed with a normal diet without SL administration (8 animals) [0214] (Parkinson's disease model+3-SL) group: Parkinson's disease models treated with 3-sialyllactose (3-SL, Sigma) (oral administration of 0.1 mg per kg of rat weight per day) in addition to the normal diet group (8 animals) [0215] (Parkinson's disease model+6-SL) group: Parkinson's disease models treated with 6-sialyllactose (6-SL, Sigma) (oral administration of 0.1 mg per kg of rat weight per day) in addition to the normal diet group (8 animals)

[0216] Sialyllactose or DW was orally administered daily. The rats were kept in animal rooms for 10 weeks, fasted for 12 hours, and sacrificed. The dietary intake and body weight change were measured every 5 days. 3-Sialyllactose (3-N-Acetylneuraminyl-D-lactose, 3-Sialyl-D-lactose, or ?-NeuNAc-(2.fwdarw.3)-?-D-Gal-(1.fwdarw.4)-DGlc) or 6-sialyllactose (6-N-acetylneuraminyl-lactose, 6-sialyl-D-lactose, or ?-NeuNAc-(2.fwdarw.6)-?-D-Gal-(1.fwdarw.4)-D-Glc) was purchased from Sigma-Aldrich.

[0217] The gene expression changes by the treatment with SL (3-SL & 6-SL) compositions were quantitatively compared in two main organs (brain and hippocampus) associated with bran diseases. RNA was extracted by TRIzol agent (Invitrogen). cDNA was synthesized by using RNA, which has been extracted as above and quantified, and a reverse transcription system (Promega, USA). The expression patterns of PGC-1? and related genes were measured by using pre-designed primers and probes (Applied Biosystems; PGC-1?, Mm00447181_m1, GAPDH, and Mm99999915_q1) for the synthesized cDNA and analysis targets (Fndc5, PGC-1?, Erra, UCP1, BDNF, SOD2, and GPX1). The Rotor-Gene 3000 system (Corbett Research, Sydney, Australia) was used for PCR reaction and analysis, and the results are shown in FIGS. 7a and 7b.

[0218] FIGS. 7a and 7b show the gene expression changes by the treatment with SL (3-SL & 6-SL) compositions in Parkinson's disease models. The 6-OHDA induced SD rat Parkinson's disease models, which were administered with 6-OHDA at 8 weeks of age and supplied at 13 weeks of age, were grouped into SL (3-SL & 6-SL) administration groups and an SL non-administration group (8 animals per group), and then subjected to a dietary control test for 8 weeks, and the gene expression levels of the test groups were compared with that in the control group in which 13-week-old male SD rats (normal) were fed with a normal diet. FIGS. 7a and 7b show the numerical values of (gene expression level of the (Parkinson's disease model) group)/gene expression level of the control group), (gene expression level of the (Parkinson's disease model+3-SL) group)/gene expression level of the control group), and (gene expression level of the (Parkinson's disease model+6-SL) group)/gene expression level of the control group) in respective organs with respect to the gene expression changes in the brain and hippocampus compared with the normal rats. As a result, as shown in FIGS. 7a and 7b, on the basis of the normal rat control group with a normal diet, the expression levels of several analysis targets (Fndc5, Erra, UCP1, BDNF, SOD2, and GPX1) including PGC-1? in the brain (FIG. 7a) and hippocampus (FIG. 7b) were somewhat lower in the 6-SL administration (Parkinson's disease model+6-SL) group compared with the normal control group, but were very high in the 6-SL administration group compared with the SL non-administration (Parkinson's disease model) group. It could be seen that 3-SL was relatively low compared with 6-SL in view of the gene expression stimulation effects. That is, 6-SL showed significant increases in expression levels of PGC-1? and related genes in the brain and hippocampus of Parkinson's disease model rats.

[0219] FIG. 8 shows the behavior test results on Parkinson's disease models. In FIG. 8, the vertical axis represents the corner turn time and the descent time as a result of carrying out behavioral ability tests (corner turn and descent) using a vertical grating device on a control group, (Parkinson's disease model) group, (Parkinson's disease model+3-SL) group, and (Parkinson's disease model+6-SL) group. The vertical grating device was in the form of an opened box of 5 cm?55 cm?8 cm, and the frant face was formed of a wiring of 0.8 cm?0.8 cm and the other surfaces were formed of black plexiglass. The bottom was made 5 cm longer for safety. In the test, the mice were placed in an upward direction at a distance of 3 cm from the top of the device, and were allowed to acclimate to the device three times for two days before testing. The above procedure was repeated if the rat could not come down within 60 seconds. The corner turn time is the time it takes for a rat facing upwards to turn downwards, and the descent time is the time obtained by subtracting the corner turn time from the overall test time for which the rat turns at the corner and descends to the bottom.

[0220] As shown in FIG. 8, the corner turn time and descent time in the SL non-administration (Parkinson's disease model) group were two or three times longer than those in the normal rat control group with a normal diet, and the corner turn time and descent time in the 6-SL administration (Parkinson's disease model+6 SL) group were almost similar to those in the control group. That is, it could be confirmed that 6-SL improved behavioral ability (corner turn or descent) in Parkinson's disease model rats. It could be seen that 3-SL was relatively low compared with 6-SL in view of the behavioral ability improvement effects.

Example 7: Evaluation of Gene Expression Stimulation by Treatment with SL (3-SL & 6-SL) Compositions in Epilepsy/Convulsion Brain Disease Models

[0221] In order to investigate the gene expression changes by the treatment with SL (3-SL & 6-SL) compositions in epilepsy/convulsion brain disease models, 4-week-old normal SD rats and epilepsy/convulsion brain disease models (Noda epileptic rat, NER) were purchased from Central Lab Animal (Korea). Water was freely accessible, and a commercially available pellet feed (Dooyeul Biotech, Korea) was given for two weeks. At 6 weeks of age, the SD rats were divided into four groups (composed of 8 animals per group): Eight 6-week-old male SD rats (normal rats; initial body weight, average 176.3?13.3 g) treated with a normal diet were used for a control group. The 6-week-old male epilepsy/convulsion brain disease models (initial body weight, average 181.8?11.3 g) were randomly divided into three different dietary treatment groups (8 animals per group) below, and these diets were maintained from 6 weeks of age for 10 weeks (total 32 animals): [0222] Control group: Normal rats fed with a normal diet without SL administration (8 animals) [0223] (Epilepsy/convulsion brain disease model) group: Epilepsy/convulsion brain disease models fed with a normal diet without SL administration (8 animals) [0224] (Epilepsy/convulsion brain disease model+3-SL) group: Epilepsy/convulsion brain disease models treated with 3-sialyllactose (3-SL, Sigma) (oral administration of 0.1 mg per kg of rat weight per day) in addition to the normal dietary group (8 animals) [0225] (Epilepsy/convulsion brain disease model+6-SL) group: Epilepsy/convulsion brain disease models treated with 6-sialyllactose (6-SL, Sigma) (oral administration of 0.1 mg per kg of rat weight per day) in addition to the normal dietary group (8 animals)

[0226] Sialyllactose or DW was orally administered daily. The rats were kept in animal rooms for 10 weeks, fasted for 12 hours, and sacrificed. The dietary intake and body weight change were measured every 5 days. 3-Sialyllactose (3-N-Acetylneuraminyl-D-lactose, 3-Sialyl-D-lactose, or ?-NeuNAc-(2.fwdarw.3)-?-D-Gal-(1.fwdarw.4)-DGlc) or 6-sialyllactose (6-N-acetylneuraminyl-lactose, 6-sialyl-D-lactose, or ?-NeuNAc-(2.fwdarw.6)-?-D-Gal-(1.fwdarw.4)-D-Glc) was purchased from Sigma-Aldrich.

[0227] The gene expression changes by the treatment with SL (3-SL & 6-SL) compositions were quantitatively compared in two main organs (brain and hippocampus) associated with bran diseases. RNA was extracted by TRIzol agent (Invitrogen). cDNA was synthesized by using RNA, which has been extracted as above and quantified, and a reverse transcription system (Promega, USA). The expression patterns of PGC-1? and related genes were measured by using pre-designed primers and probes (Applied Biosystems; PGC-1?, Mm00447181_m1, 999915_q1) for the synthesized cDNA and analysis targets (Fndc5, PGC-1?, Erra, UCP1, BDNF, SOD2, and GPX1). The Rotor-Gene 3000 system (Corbett Research, Sydney, Australia) was used for PCR reaction and analysis, and the results are shown in FIG. 9.

[0228] FIGS. 9a and 9b show the gene expression changes by the treatment with SL compositions in epilepsy/convulsion brain disease models. In FIGS. 9a and 9b, the vertical axes represent the numerical values of (gene expression level of the (epilepsy/convulsion brain disease model) group)/gene expression level of the control group), (gene expression level of the (epilepsy/convulsion brain disease model+3-SL) group)/gene expression level of the control group), and (gene expression level of the (epilepsy/convulsion brain disease model+6-SL) group)/gene expression level of the control group) in respective organs with respect to relative gene expression changes in the brain or hippocampus compared with the control group. The 6-week-old epilepsy/convulsion brain disease models were grouped into SL administration groups and an SL non-administration group (8 animals per group), and then subjected to a dietary control test for 10 weeks, and the gene expression levels in the test groups were compared with that in the control group in which 6-week-old male SD rats (normal) were fed with a normal diet. As a result, as shown in FIGS. 9a and 9b, on the basis of the normal rat control group with a normal diet, the expression levels of several analysis targets (Fndc5, Erra, UCP1, BDNF, SOD2, and GPX1) including PGC-1? in the brain (FIG. 9a) and hippocampus (FIG. 9b) were somewhat lower in the SL administration (epilepsy/convulsion brain disease model+SL) groups compared with the normal control group, but were very high in the SL administration groups compared with the SL non-administration (epilepsy/convulsion brain disease model) group. That is, 6-SL showed significant increases in expression levels of PGC-1? and related genes in the brain and hippocampus of epilepsy/convulsion brain disease models rats. It could be seen that 3-SL was relatively low compared with 6-SL in view of the gene expression stimulation effects.

Example 8: Evaluations of Gene Expression Stimulation and Rotarod Travel Time Improvement by Treatment with SL (3-SL & 6-SL) Compositions in Huntington's Brain Disease Models

[0229] In order to investigate the changes in gene expression and cognitive ability by the treatment with SL (3-SL & 6-SL) compositions in Huntington's brain disease model, 4-week-old mice were purchased from Central Lab Animal (Korea). Water was freely accessible, and a commercially available pellet feed (Dooyeul Biotech, Korea) was given for one week. At 5 weeks of age, the mice were divided into three groups (composed of eight mice for each group): Eight 5-week-old male c57/BL6 mice (normal mice; initial body weight, average 25.3?4.3 g) treated with a normal diet were used for a control group. The 5-week-old male Huntington's disease model mice (R6/2 series (B6CBATg(HDexon1)62Gpb/3J, 111 CAGs) transgenic HD mice; initial body weight, average 26.9?4.8 g) were randomly divided into three different dietary treatment groups (eight mice per group), and these diets were maintained for 10 weeks (total 32 animals): [0230] Control group: Normal mice fed with a normal diet without SL administration (8 animals) [0231] (Huntington's disease model) group: Huntington's disease models fed with a normal diet without SL administration (8 animals) [0232] (Huntington's disease model+3-SL) group: Huntington's disease models treated with 3-sialyllactose (3-SL, Sigma) (oral administration of 0.1 mg per kg of mouse weight per day) in addition to the normal diet group (8 animals) [0233] (Huntington's disease model+6-SL) group: Huntington's disease models treated with 6-sialyllactose (6-SL, Sigma) (oral administration of 0.1 mg per kg of mouse weight per day) in addition to the normal diet group (8 animals)

[0234] Sialyllactose or DW was orally administered daily. The mice were kept in animal rooms for 10 weeks, fasted for 12 hours, and sacrificed. The dietary intake and body weight change were measured every 5 days. 3-Sialyllactose (3-N-Acetylneuraminyl-D-lactose, 3-Sialyl-D-lactose, or ?-NeuNAc-(2.fwdarw.3)-?-D-Gal-(1.fwdarw.4)-DGlc) or 6-sialyllactose (6-N-acetylneuraminyl-lactose, 6-sialyl-D-lactose, or ?-NeuNAc-(2.fwdarw.6)-?-D-Gal-(1.fwdarw.4)-D-Glc) was purchased from Sigma-Aldrich.

[0235] The gene expression changes by the treatment with SL (3-SL & 6-SL) compositions were quantitatively compared in two main organs (brain and hippocampus) associated with bran diseases. RNA was extracted by TRIzol agent (Invitrogen). cDNA was synthesized by using RNA, which has been extracted as above and quantified, and a reverse transcription system (Promega, USA). The expression patterns of PGC-1? and related genes were measured by using pre-designed primers and probes (Applied Biosystems; PGC-1?, Mm00447181_m1, GAPDH, and Mm99999915_q1) for the synthesized cDNA and analysis targets (Fndc5, PGC-1?, Erra, UCP1, BDNF, SOD2, and GPX1). The Rotor-Gene 3000 system (Corbett Research, Sydney, Australia) was used for PCR reaction and analysis, and the results are shown in FIG. 10.

[0236] FIGS. 10a and 10b show the gene expression changes by the treatment with SL (3-SL & 6-SL) compositions in Huntington's disease models. FIGS. 10a and 10b show the numerical values of (gene expression level of the (Huntington's disease model) group)/gene expression level of the control group), (gene expression level of the (Huntington's disease model+3-SL) group)/gene expression level of the control group), and (gene expression level of the (Huntington's disease model+6-SL) group)/gene expression level of the control group) in respective organs with respect to the gene expression changes in the brain and hippocampus compared with the normal mice control group. The 5-week-old male Huntington's disease model mice were grouped into SL (3-SL & 6-SL) administration groups and an SL non-administration group (8 animals per group), and then subjected to a dietary control test for 10 weeks, and the gene expression levels in the test groups were compared with that in the normal mice (c57/BL6) with a normal diet. As a result, as shown in FIGS. 10a and 10b, on the basis of the normal mouse control group with a normal diet, the expression levels of several analysis targets (Fndc5, Erra, UCP1, BDNF, SOD2, and GPX1) including PGC-1? in the brain (FIG. 10a) and hippocampus (FIG. 10b) were somewhat lower in the 6-SL administration (Huntington's disease model+6-SL) group compared with the normal control group, but were very excellent in the 6-SL administration group compared with the SL non-administration (Huntington's disease model) group. That is, 6-SL showed significant increases in expression levels of PGC-1? and related genes in the brain and hippocampus of Huntington's disease model mice. It could be seen that 3-SL was relatively low compared with 6-SL in view of the gene expression stimulation effects.

[0237] In addition, the behavior improvement was evaluated through the rotarod travel time changes of the (Huntington's disease model) group, (Huntington's disease model+3-SL) group, and (Huntington's disease model+6-SL) group, compared with the normal mouse with a normal diet. The rotarod travel test is to investigate the changes of the numerical values of (rotarod travel time of (Huntington's disease model) group)/rotarod travel time of the control group), (rotarod travel time of the (Huntington's disease model+3-SL) group)/rotarod travel time of the control group), and (rotarod travel time of the (Huntington's disease model+6-SL) group)/rotarod travel time of the control group). The rotarod travel time was measured by using a rotarod device (rod accelerating at a revolution speed of 4-40 rpm through 3 minutes, Jungdo Instruments, Korea). After 4-week-old mice were practiced on the rotarod test, the rotarod test was performed from 5 weeks of age, and the mean time to fall was measured.

[0238] FIG. 11 shows the rotarod travel test results in Huntington's disease models. In FIG. 11, the vertical axis represents the numerical values of (rotarod travel time of (Huntington's disease model) group)/rotarod travel time of the control group), (rotarod travel time of the (Huntington's disease model+3-SL) group)/rotarod travel time of the control group), and (rotarod travel time of the (Huntington's disease model+6-SL) group)/rotarod travel time of the control group). As a result, as shown in FIG. 11, when the rotarod travel tests for the Huntington's disease model) group, (Huntington's disease model+3-SL) group, and (Huntington's disease model+6-SL) group were campared with the normal mouse control group with a normal diet, the rotarod travel time was increased in the 6-SL administration (Huntington's disease model+6-SL) group compared with the SL non-administration group (Huntington's disease model) group, and the travel time increasing effect of 3-SL was less than that of 6-SL. That is, it could be confirmed that 6-SL stimulated the behavior improvement best in Huntington's disease models.

Example 9: Changes in Ischemic Volume and MLPT Score by Treatment with SL (3-SL & 6-SL) Compositions in Stroke Models

[0239] In order to investigate the changes in ischemic volume and modified limb placing test (MLPT) score by treatment with SL (3-SL & 6-SL) compositions in stroke models, 4-week-old mice were purchased from Central Lab Animal (Korea). Water was freely accessible, and a commercially available pellet feed (Dooyeul Biotech, Korea) was given for one week. Stroke models involving temporary and permanent middle cerebral artery (MCA) occlusion and intracerebral hemorrhage (ICH) were fabricated using 6-week-old male Sprague-Dawley rats (weight, average 185.3?15.8 g) and male BALB/c mice weight, average 24.6?3.8 g). For the comparison of SL administration effects, the mice, one hour after stroke induction, were randomly grouped into three different intraperitoneal administration groups (8 animals per group, 24 animals in total) below, and then intraperitoneally administered: [0240] Control group: Lysis buffer control group medium intraperitoneal administration group (8 animals) [0241] 3-SL treatment: 3-SL lysis buffer medium intraperitoneal administration group (8 animals) [0242] 6-SL treatment: 6-SL lysis buffer medium intraperitoneal administration group (8 animals)

[0243] Local cerebral infarction mouse models were used as additional cerebral infarction models, and in these models, SL (3-SL & 6-SL) was intraperitoneally administered 3 hours after cerebral infarction introduction: [0244] Control group: Lysis buffer control group medium intraperitoneal administration group (8 animals) [0245] 3-SL treatment: 3-SL lysis buffer medium intraperitoneal administration group (8 animals) [0246] 6-SL treatment: 6-SL lysis buffer medium intraperitoneal administration group (8 animals)

[0247] The ischemic volume measurement was conducted by measuring the volume of the ischemic area (infarct and boundary region thereof) using 2,3,7-triphenyltetrazolium chloride (TTC), 24 hours after ischemic induction, as follows. After brain extraction, the frontal tip was cut into 1 mm thickness, and immersed in 2% TCC solution. The stained slices were then fixed with PBS-4% paraformaldehyde, and the ischemic site and hemispherical region of each slice were measured using an image analysis system. The values due to brain edema were corrected as follows: corrected ischemic volume value: measured ischemic area?1?{[(ipsilateral hemisphere area-contralateral hemisphere area)/contralateral hemisphere]}. The ischemic volume was expressed as a percentage of the total hemispherical volume.

[0248] FIG. 12 shows the observation resulst of the ischemic volume in ischemic models. FIG. 12 shows the observation results of the in vivo ischemic neuronal damage protective effects of SL when mouse models with temporary and permanent middle cerebral artery (MCA) occlusion were treated with 3- or 6-SL. As shown in FIG. 12, the reduction of ischemic volume by 6-SL treatment were about 50% in all of local cerebellar permanent ischemia models (50%), local cerebellar temporal ischemia models (60%), and local cerebral permanent occlusion models (40%). It could be seen that 3-SL were relatively low compared with 6-SL in view of the ischemic neuronal damage protective effects.

[0249] In addition, in order to investigate the neurodegeneration inhibition by SL (3-SL & 6-SL) in ICH models, the MLPT test was conducted. The MLPT test was conducted one day before, one day after, and three days after ICH induction. The model was suspended at 10 cm above a table, and the stretch of the forelimbs toward the table was scored (0 points for normal stretch and 1 point for abnormal fexion). Next, the forelimbs of the model were allowed to move through the edge, and each forelimb was pulled down gently, and the retrieval and placement were checked (forelimb, second task; hind limb, third task). Finally, the rat was placed toward the table edge to check for lateral placement of the forelimbs. The evaluation results for three tasks were scored in the following manner: 0 points for normal performance, 1 point for performance with a delay (at least 2 seconds) or incomplete performance, and 2 points for no performance. A total of seven points indicates maximal neurological deficit, and a score of 0 points indicates normal performance.

[0250] FIG. 13 shows the MLPT test score changes by SL (3-SL & 6-SL) treatment after ICH induction As shown in FIG. 13, as can be seen from the results on the first day and the third day after IHC model induction, the MLPT test score was lower when the ICH models were treated with 6-SL compared with the control group. That is, the neurodegeneration inhibitory effects by 6-SL treatment were observed. It could be seen that 3-SL were relatively low compared with 6-SL in view of the neurodegeneration inhibitory effects.

Example 10: Abdominal Fat Gene Expression Changes and Topical Fat Removal Evaluation by Treatment with SL (3-SL & 6-SL) Compostions

[0251] In order to investigate gene expression changes and topical fat removal effects by treatment with SL (3-SL & 6-SL) composition in mouse models, 4-week-old male ob mouse (C57BL/6J-ob/ob) models were purchased from Central Lab Animal (Korea). Water was freely accessible, and a high-fat diet (Rodent Diet with 60 kcal % fat) was supplied for two weeks. 6-Week-old male ob mouse (C57BL/6J-ob/ob) models (initial body weight, average 34.2?3.7 g) were randomly grouped into three different dietary treatment groups (8 animals per group) below, and these diets were maintained for 10 weeks (a total of 24 animals): [0252] Control group: Models fed with a high-fat diet (Rodent Diet with 60 kcal % fat) without SL treatment (8 animals) [0253] 3-SL administration group: Models treated with 3-sialyllactose (3-SL, Sigma) (oral administration of 0.1 mg per kg of mouse weight per day) in addition to the high-fat diet group (8 animals) [0254] 6-SL administration group: Models treated with 6-sialyllactose (6-SL, Sigma) (oral administration of 0.1 mg per kg of mouse weight per day) in addition to the high-fat diet group (8 animals)

[0255] Sialyllactose or DW was orally administered daily. The mice were kept in animal rooms for 10 weeks, fasted for 12 hours, and sacrificed. The dietary intake and body weight change were measured every 5 days. 3-Sialyllactose (3-N-Acetylneuraminyl-D-lactose, 3-Sialyl-D-lactose, or ?-NeuNAc-(2.fwdarw.3)-?-D-Gal-(1.fwdarw.4)-DGlc) or 6-sialyllactose (6-N-acetylneuraminyl-lactose, 6-sialyl-D-lactose, or ?-NeuNAc-(2.fwdarw.6)-?-D-Gal-(1.fwdarw.4)-D-Glc) was purchased from Sigma-Aldrich.

[0256] Gene expression changes by the treatment with SL (3-SL & 6-SL) compositions were quantitatively compared in the abdominal part. RNA was extracted by TRIzol agent (Invitrogen). cDNA was synthesized by using RNA, which has been extracted as above and quantified, and a reverse transcription system (Promega, USA). The expression patterns of PGC-1? and related genes were measured by using pre-designed primers and probes (Applied Biosystems; PGC-1?, Mm00447181_m1, GAPDH, and Mm99999915_q1) for the synthesized cDNA and analysis targets (Fndc5, PGC-1?, Erra, UCP1, SOD2, and GPX1). The Rotor-Gene 3000 system (Corbett Research, Sydney, Australia) was used for PCR reaction and analysis, and the results are shown in FIG. 14.

[0257] FIG. 14 shows gene expression changes by the treatment with SL compositions in mouse models. In FIG. 14, the vertical axis represents the ratio of the abdominal fat gene expression in the models fed with a high-fat diet compared with SL administration, which show the numerical values of (the gene expression level of the 3-SL administration group/the gene expression level of the control group) and (the gene expression level of the 6-SL administration group/the gene expression level of the control group) in the abdominal fat. 6-Week-old male mice were divided into the control group and the SL administration groups (8 animals per group), which were subjected to a high-fat dietary control test for 10 weeks. As a result, as shown in FIG. 14, the 6-SL administration group showed about two-time significant increases in expression levels of several analysis targets (Fndc5, PGC-1?, Erra, UCP1, SOD2, and GPX1) compared with the negative control group. It could be seen that 3-SL was relatively low compared with 6-SL in view of the expression stimulation effects of PGC-1? and related genes.

[0258] In addition, in the ob mouse (C57BL/6J-ob/ob) models fed with a high-fat diet without SL treatment, the topical fat removal effect by SL (3-SL & 6-SL) administration using a meso roller (0.5 mm, INTO MR, Intomedi Inc.) was investigated. Specifically, the hairs on the dorsal side of the rat were shaved, and 0.1 M SL in the saline buffer was applied to the skin, and was absorbed into the skin by rubbing with the meso roller. The control group was tested by the same method except that the buffer was used without SL. The results are shown in FIG. 15. FIG. 15 shows gene expression changes when SL (3-SL & 6-SL) compositions were topically administered in the mouse models. In FIG. 15, 3-SL, 6-SL, and CTL represent the 3-SL administration group, the 6-SL administration group, and the control group, respectively. After feeding with a high-fat diet for 10 weeks, SL (3-SL & 6-SL) compositions were topically administered on day 0 and day 4 using the meso roller, and then dermoscopy observation was conducted on day 7. The observation results are shown.

[0259] As a result, as shown in FIG. 15, it could be confirmed that the topical fat was removed in the portion administered with 6-SL using the meso roller compared with the negative control portion. It could be seen that 3-SL was relatively low compared with 6-SL in view of the topical fat removing effects.

Example 11: Gene Expression Changes by Body Parts and Aging-Related Chronic Disease Preventing Effect Through Telomere Functions and ROS Control by the Treatment with SL (3-SL & 6-SL) Compositions in Aging Stimulation Models

[0260] In order to investigate the gene expression changes by body parts by the treatment with SL (3-SL & 6-SL) compositions in aging stimulation models, 4-week-old male aging stimulation model mice (SAM P1/Sku Slc) were purchased from Central Lab Animal (Korea). Water was freely accessible, and a commercially available pellet feed (Dooyeul Biotech, Korea) was given for one week. 6-Week-old male aging stimulation model mice (initial body weight, average 28.8?2.3 g) were randomly grouped into three different dietary treatment groups (8 animals per group) below, and these diets were maintained for 12 weeks (a total of 24 animals): [0261] Control group: Normal mice fed with a normal diet without SL administration (8 animals) [0262] 3-SL administration group: Aging stimulation models treated with 3-sialyllactose (3-SL, Sigma) (oral administration of 0.1 mg per kg of mouse weight per day) in addition to the normal diet group (8 animals) [0263] 6-SL administration group: Aging stimulation models treated with 6-sialyllactose (6-SL, Sigma) (oral administration of 0.1 mg per kg of mouse weight per day) in addition to the normal diet group (8 animals)

[0264] Sialyllactose or DW was orally administered daily. The mice were kept in animal rooms for 14 weeks, fasted for 12 hours, and sacrificed. The dietary intake and body weight change were measured every 5 days. 3-Sialyllactose (3-N-Acetylneuraminyl-D-lactose, 3-Sialyl-D-lactose, or ?-NeuNAc-(2.fwdarw.3)-?-D-Gal-(1.fwdarw.4)-DGlc) or 6-sialyllactose (6-N-acetylneuraminyl-lactose, 6-sialyl-D-lactose, or ?-NeuNAc-(2.fwdarw.6)-?-D-Gal-(1.fwdarw.4)-D-Glc) was purchased from Sigma-Aldrich.

[0265] The gene expression changes by administration of the SL (3-SL & 6-SL) compositions were quantitatively compared for eight main organs (heart, hippocampus, brain, spinal cord, lung, liver, spleen, and kidney), three skeletal muscles (soleus muscle, quadriceps femoris muscle, and gastrocnemius muscle), and the like. RNA was extracted by TRIzol agent (Invitrogen). cDNA was synthesized by using RNA, which has been extracted as above and quantified, and a reverse transcription system (Promega, USA). The expression patterns of PGC-1? and related genes were measured by using pre-designed primers and probes (Applied Biosystems; PGC-1?, Mm00447181_m1, GAPDH, and Mm99999915_q1) for the synthesized cDNA and analysis targets (Fndc5, PGC-1?, Erra, UCP1, SOD2, and GPX1). The Rotor-Gene 3000 system (Corbett Research, Sydney, Australia) was used for PCR reaction and analysis, and the results are shown in FIG. 16.

[0266] FIGS. 16a and 16b show the gene expression changes by the treatment with SL (3-SL & 6-SL) compositions in aging stimulating models. The 6-week-old male aging stimulation model mice (SAM P1/Sku Slc) were grouped into the control group, 3-SL administration group, and 6-SL administration group (8 animals per group), and then subjected to a dietary control test for 12 weeks. In FIGS. 16a and 16b, the vertical axes represent the relative gene expression changes by body parts compared with before SL (3-SL & 6-SL) administration, which show the numerical values of (the gene expression level of the 3-SL administration group/the gene expression level of the control group) and (the gene expression level of the 6-SL administration group/the gene expression level of the control group) in the respective body parts. As a result, as shown in FIGS. 16a and 16b, both of 3-SL (FIG. 16a) and 6-SL (FIG. 16b) showed significant increases in expression levels of several analysis targest (Fndc5, PGC-1?, Erra, UCP1, SOD2, and GPX1) in most of the organs and skeletal muscles, and 3-SL was relatively low compared with 6-SL in view of the gene expression stimulation effects of analysis targets.

[0267] In addition, for cell-level tests, mouse aortic smooth muscle cells (MASMs) were isolated from the control group fed with a high-fat diet (Rodent Diet with 60 kcal % fat) without SL administration (Griendling et al., 1991), and the SL (3-SL & 6-SL) compositions were added to the culture liquid, followed by incubation. For intracellular H.sub.2O.sub.2 measurement (ROS values), the cells were cultured in 12-well culture plates immersed in 0.1% bovin calf serum. The intracellular ROS values were measured using H2DCFDA. For assay, the cells were cultured together with H2DCFDA in HBSS buffer for 30 minutes. The cells were trypsinized, washed, and lysed in HBSS. The fluorescence values were measured immediately by a CytoFluor plate reader (FIG. 17a).

[0268] For the measurement of mitochondrial superoxide production, mitochondrial ROS was measured using MitoSOX Red (mitochondrial superoxide fluorescent marker). MASMs were extracted, and incubated with MitoSOX (4 ?M) in the dark room at 37? C. for 20 minutes. The MitoSOX fluorescence was quantified by the cell fluorescence intensity read using a fluorescent plate reader (480 nm excitation/580 nm emission) (FIG. 17b).

[0269] In FIGS. 17a and 17b, MASMs were extracted from the aging stimulation model mouse control group, and the SL (3-SL & 6-SL) compositions were added to the culture liquid to conduct comparison. For intracellular H2O2 (ROS values) measurement, the cells were cultured together H2DCFDA (FIG. 17a), and for mitochondrial ROS measurement, the cells were cultured together with MitoSOX Red (mitochondrial superoxide fluorescent marker (FIG. 17a). The intracellular H.sub.2O.sub.2 and mitochondrial superoxide production were quantified by a fluorescence plate reader. It could be seen that the compositions dropped the ROS values and inhibited the mitochondrial superoxide production.

[0270] FIGS. 17a and 17b show the measurement results of intercellular H.sub.2O.sub.2 (ROS values) (FIG. 17a) and the measurement results of mitochondrial superoxide production (FIG. 17b). MASMs were extracted from the aging stimulation model mice (SAM P1/Sku Slc), and the SL (3-SL & 6-SL) compositions were added to the culture liquid to conduct comparison For intracellular H2O2 measurement, the cells were cultured together H2DCFDA (FIG. 17a), and for mitochondrial ROS measurement, the cells were cultured together with MitoSOX Red (mitochondrial superoxide fluorescent marker (FIG. 17a). The intracellular H.sub.2O.sub.2 and mitochondrial superoxide production were quantified by a fluorescence plate reader. It could be seen that the SL (3-SL & 6-SL) compositions dropped the ROS values and inhibited the mitochondrial superoxide production.

[0271] In FIGS. 18a and 18b, the telomerase activity was measured using TRAP protocol (Wright et al., 1995). In summary, cell pellets were lysed in CHAPS lysis solvent (containing ribnuclease inhibitor), followed by incubation at 4? C. for 30 minutes. Cell extracts (1 mg) were TRAPeze reaction mix (telomerase substrate (TS) primer, fluorescent-labeled RP (reverse) primer, control standard template, and sulforhodamine-labeled standard K2 primer). The TS primer was elongated at 30? C. for 30 minutes, and then PCR was performed. The fluorescence of the thus obtained TRAP product was measured using a fluorescent plate reader to quantify telomerase activity. Relative telomerase activity was normalized by the ratio of native fluorouracil to sulforhodamine (internal control standard), expressed as a percentage. Fluorescein (M0250) was purchased from Marker Gene Technologies, Inc. H2-dichlorofluorescin diacetate (DCFDA) was purchased from Molecular Probes. MitoSOX? Red, MitoTracker Green FM, and MitoTracker? Orange CMTMRos (MTO) were purchased from Invitrogen. 10,000? SYBR? Gold dye was purchased from Molecular Probes, Inc. Nuclear/Cytosol fractionation kit (K266-100) was purchased from BioVision. TRAPeze? XL telomerase detection kit (S7707) was purchased from MILLIPORE. Telomere PNA FISH Kit/Cy3 (K5326) was purchased from Dako.

[0272] FIGS. 18a and 18b show the measurement results of telomerase activity by the administration of SL (3-SL & 6-SL) compositions. Through these values, TERT and anti-oxidant/electrophile-responsive element (ARE/ERE) nerve pathway activation could be deduced (Xiong et al., 2015, Cell Reports 12, 1391-1399). The aging stimulation models (FIG. 18a) and MASMs (FIG. 18b) were treated with SL (3-SL & 6-SL) to analyze telomerase activity. FIG. 18a shows the data of in vivo analysis of telomerase activity in the aorta sample extracted from the control group, 3-SL administration group, and 6-SL administration group. FIG. 18b shows the data of in vitro analysis of temomerase activity when the smooth muscle cells of the control group were isolated (Griendling et al., 1991) and MASMs were cultured for 1 day in 12-well culture plates treated with SL (3-SL & 6-SL). The test results showed that the administration of the SL (3-SL & 6-SL) compositions increased telomerase activity. These results suggest that the SL (3-SL & 6-SL) compositions may be associated with TERT dysfunction and DNA damage recovery (increased telomerase activityTERT expression) through increased PGC-1?.

Example 12: Aging-Related Chronic Disease Preventing Effect Through Telomere Functions and ROS Control by the Treatment with SL (3-SL & 6-SL) Compositions in Arteriosclerosis Models

[0273] It has been recently reported that the removal of PGC-1? gene results in vascular aging, atherosclerosis, telomere dysfunction and length reduction, DNA damage, decreased expression and activity of telomerase reverse transcriptase (TERT), and increased p53 (Xiong et al., 2015, Cell Reports 12, 1391-1399).

[0274] In general, ApoE.sup.?/? mice increase the sensitivity to oxidative stress and inflammation and rapidly develop atherosclerosis wounds observed in persons, and thus the mice were used as representative models of arteriosclerosis (Weiss et al., 2001). Therefore, ApoE.sup.?/? mice (C57BL/6 based) were purchased from Jackson Laboratory. The genotype was identified by PCR using tail DNA.

[0275] In order to investigate the aging-related chronic disease preventing effect through the control of telomerase functions and DNA damage by the treatment with SL (3-SL & 6-SL) compositions in arteriosclerosis models, two types of 24-week-old male model mice (PGC-1?.sup.+/+ApoE.sup.?/?) were randomly grouped into three different dietary treatment groups (8 animals per group) below, and the diets were maintained for 6 weeks (a total of 24 animals): [0276] Control group: Arteriosclerosis models fed with a high-fat diet (Rodent Diet with 60 kcal % fat) (8 animals) [0277] 3-SL administration group: Arteriosclerosis models treated with 3-sialyllactose (3-SL, Sigma) (oral administration of 0.1 mg per kg of mouse weight per day) in addition to the high-fat diet group (8 animals) [0278] 6-SL administration group: Arteriosclerosis models treated with 6-sialyllactose (6-SL, Sigma) (oral administration of 0.1 mg per kg of mouse weight per day) in addition to the high-fat diet group (8 animals)

[0279] For cell-level tests, mouse aortic smooth muscle cells (MASMs) were isolated from the control group fed with a high-fat diet (Rodent Diet with 60 kcal % fat) without SL administration (Griendling et al., 1991), and the SL (3-SL & 6-SL) compositions were added to the culture liquid, followed by comparison. For intracellular H.sub.2O.sub.2 measurement (ROS values), the cells were cultured in 12-well culture plates immersed in 0.1% bovine calf serum. The intracellular ROS values were measured using H2DCFDA. For assay, the cells were cultured together with H2DCFDA in HBSS buffer for 30 minutes. The cells were trypsinized, washed, and lysed in HBSS. The fluorescence values were measured immediately by a CytoFluor plate reader (FIG. 19a).

[0280] For the measurement of mitochondrial superoxide production, mitochondrial ROS was measured using MitoSOX Red (mitochondrial superoxide fluorescent marker). MASMs were extracted, and incubated with MitoSOX (4 ?M) in the dark room at 37? C. for 20 minutes. The MitoSOX fluorescence was quantified by the cell fluorescence intensity read using a fluorescent plate reader (480 nm excitation/580 nm emission) (FIG. 19b).

[0281] In FIGS. 19a and 19b, MASMs were extracted from the model mouse (PGC-1?.sup.+/+ApoE.sup.?/?) control group, and the SL (3-SL & 6-SL) compositions were added to the culture liquid to conduct comparison. For intracellular H2O2 (ROS values) measurement, the cells were cultured together H2DCFDA (FIG. 19a), and for mitochondrial ROS measurement, the cells were cultured together with MitoSOX Red (mitochondrial superoxide fluorescent marker (FIG. 19a). The intracellular H.sub.2O.sub.2 and mitochondrial superoxide production were quantified by a fluorescence plate reader. It could be seen that the compositions dropped the ROS values and inhibited the mitochondrial superoxide production.

[0282] FIGS. 19a and 19b show the measurement results of intercellular H.sub.2O.sub.2 (ROS values) (FIG. 19a) and the measurement results of mitochondrial superoxide production (FIG. 19b). MASMs were extracted from the model mice (PGC-1?.sup.+/+ApoE.sup.?/?), and the SL (3-SL & 6-SL) compositions were added to the culture liquid to conduct comparison. For intracellular H2O2 measurement, the cells were cultured together H2DCFDA (FIG. 19a), and for mitochondrial ROS measurement, the cells were cultured together with MitoSOX Red (mitochondrial superoxide fluorescent marker (FIG. 19a). The intracellular H.sub.2O.sub.2 and mitochondrial superoxide production were quantified by a fluorescence plate reader. It could be seen that the SL (3-SL & 6-SL) compositions dropped the ROS values and inhibited the mitochondrial superoxide production.

[0283] In FIG. 20, the telomerase activity was measured using TRAP protocol (Wright et al., 1995). In summary, cell pellets were lysed in CHAPS lysis solvent (containing ribonuclease inhibitor), followed by incubation at 4? C. for 30 minutes. Cell extracts (1 mg) were TRAPeze reaction mix (telomerase substrate (TS) primer, fluorescent-labeled RP (reverse) primer, control standard template, and sulforhodamine-labeled standard K2 primer). The TS primer was elongated at 30? C. for 30 minutes, and then PCR was performed. The fluorescence of the thus obtained TRAP product was measured using a fluorescent plate reader to quantify telomerase activity. Relative telomerase activity was normalized by the ratio of native fluorouracil to sulforhodamine (internal control standard), expressed as a percentage. Fluorescein (M0250) was purchased from Marker Gene Technologies, Inc. H2-dichlorofluorescin diacetate (DCFDA) was purchased from Molecular Probes. MitoSOX? Red, MitoTracker Green FM, and MitoTracker? Orange CMTMRos (MTO) were purchased from Invitrogen. 10,000? SYBR? Gold dye was purchased from Molecular Probes, Inc. Nuclear/Cytosol fractionation kit (K266-100) was purchased from BioVision. TRAPeze? XL telomerase detection kit (S7707) was purchased from MILLIPORE. Telomere PNA FISH Kit/Cy3 (K5326) was purchased from Dako.

[0284] FIGS. 20a and 20b show the measurement results of telomerase activity by the administration of SL (3-SL & 6-SL) compositions. Through these values, TERT and anti-oxidant/electrophile-responsive element (ARE/ERE) nerve pathway activation could be deduced (Xiong et al., 2015, Cell Reports 12, 1391-1399).

[0285] FIGS. 20a and 20b show the analysis results of telomerase activity by the treatment of arteriosclerosis models (ApoE.sup.?/?; FIG. 20a) and MASMs (FIG. 20b) with SL (3-SL & 6-SL). FIG. 20a shows the data of in vivo analysis of telomerase activity in the aorta sample extracted from the control group, 3-SL administration group, and 6-SL administration group. FIG. 20b shows the data of in vitro analysis of telomerase activity when the smooth muscle cells of the control group were isolated (Griendling et al., 1991) and MASMs were cultured for 1 day in 12-well culture plates treated with SL (3-SL & 6-SL). The test results showed that the administration of the SL (3-SL & 6-SL) compositions increased telomerase activity. These results suggest that the SL (3-SL & 6-SL) compositions may be associated with TERT dysfunction and DNA damage recovery (increased telomerase activityTERT expression) through increased PGC-1?.

Example 13: Gene Expression Changes by Body Parts by the Treatment with SL (3-SL & 6-SL) Compositions in Skin Test

[0286] In order to investigate the gene expression chages by body parts by the treatment with the SL (3-SL & 6-SL) compositions in skin test models, 6-week-old male skin test model (HRM2) mice (hairless appearance containing melanin) were randomly grouped into three different dietary treatment groups (8 animals per group, a total of 24 animals) below, and the diets (AIN-76A, Dyets, USA) were maintained for 10 weeks. The UV irradiation (black spot, wrinkle test), skin sensitivity test, skin irritation test, subcutaneous absorption test, or the like were conducted using a portable color-difference meter (CR-10, Minolta, Japan): [0287] Control group: Group fed with a normal diet (8 animals) [0288] 3-SL administration group: Models treated with 3-sialyllactose (3-SL, Sigma) (oral administration of 0.1 mg per kg of mouse weight per day) in addition to the normal diet group (8 animals) [0289] 6-SL administration group: Models treated with 6-sialyllactose (6-SL, Sigma) (oral administration of 0.1 mg per kg of mouse weight per day) in addition to the normal diet group (8 animals)

[0290] It could be seen that the SL (3-SL & 6-SL) administration groups showed much improved skin compared with the control group in view of the UV irradiation (black spot, wrinkle test), skin sensitivity test, skin irritation test, subcutaneous absorption test, or the like. The gene expression changes by administration of the SL (3-SL & 6-SL) compositions were quantitatively compared for eight main organs (heart, hippocampus, brain, spinal cord, lung, liver, spleen, and kidney), three skeletal muscles (soleus muscle, quadriceps femoris muscle, and gastrocnemius muscle), and the like. RNA was extracted by TRIzol agent (Invitrogen). cDNA was synthesized by using RNA, which has been extracted as above and quantified, and a reverse transcription system (Promega, USA). The expression patterns of PGC-1? and related genes were measured by using pre-designed primers and probes (Applied Biosystems; PGC-1?, Mm00447181_m1, GAPDH, and Mm99999915_q1) for the synthesized cDNA and analysis targets (Fndc5, PGC-1?, Erra, UCP1, SOD2, and GPX1). The Rotor-Gene 3000 system (Corbett Research, Sydney, Australia) was used for PCR reaction and analysis, and the results are shown in FIGS. 21a and 21b.

[0291] In FIGS. 21a and 21b, the relative gene expression changes by body parts compared with before SL (3-SL & 6-SL) administration were numerically expressed by (the gene expression level of the 3-SL administration group/the gene expression level of the control group) and (the gene expression level of the 6-SL administration group/the gene expression level of the control group) in the respective body parts. The expression levels of several analysis targets (Fndc5, PGC-1?, Erra, UCP1, SOD2, and GPX1) including PGC-1? in several body parts were very excellent in the 6-SL administration group compared with the negative control group. That is, it could be confirmed that 6-SL stimulated the expression of PGC-1? and related genes in several organs and muscles of normal mice. It could be seen that 3-SL was relatively low compared with 6-SL in view of the gene expression stimulation effects of the analysis targets.

[0292] FIGS. 21a and 21b show the gene expression changes by the treatment with SL (3-SL & 6-SL) compositions in skin test models. 6-Week-old male skin test model (HRM2) mice were randomly grouped into the control group and the SL (3-SL & 6-SL) administration groups (8 animals per group), and subjected to a dietary control test for 10 weeks. The relative gene expression changes compared with before SL (3-SL & 6-SL) administration were numerically expressed by (the gene expression level of the 3-SL administration group/the gene expression level of the control group) and (the gene expression level of the 6-SL administration group/the gene expression level of the control group), which are relative ratios of the values obtained by quantifying the gene expression level of the SL administration group and the gene expression level of the control group gene in each body part. The significant increases in expression levels of severa analysis targets (Fndc5, PGC-1?, Erra, UCP1, SOD2, and GPX1) were observed in most of organs and skeletal muscles. It could be seen that 3-SL (FIG. 21a) was relatively low compared with 6-SL (FIG. 21b) in view of the gene expression stimulation effects of analysis targets.

Example 14: Effects of Siallylactose (3-SL & 6-SL) Composition on Differentiated Adipocytes

[0293] (1) 3T3-L1 Cell Culture and Differentiation

[0294] 3T3-L1 adipocytes were purchased from Korean Cell Line Bank. For the culture and maintenance of 3T3-L1 adipocytes, the cells were subcultured in Dulbecco's modified Eagle's medium (DMEM, Welgene, Korea) supplemented with 10% bovin calf serum (FCS, Welgene, Korea) in a 5% CO.sub.2 incubator at 37? C. 3T3-L1 adipocytes were divided into six groups as follows: NT; Normal differentiated cell group (control group), sialyllactose test group; 1, 10, 100, 1000, and 10000 ?M test groups treated with sialyllactose (SL, Sigma-Aldrich, USA). For cell differentiation, the cells were dispensed in 6-well plates at a density of 2?10.sup.5 cells per well, and grown to 100% confluency. After 2 days, the test groups were treated with DMEM medium containing 10% fetal bovine serum (FBS, Welgene, Korea), MDI solution (0.5 mM isobutylmethylxanthine (IBMX, Sigma-Aldrich, USA), 1 ?M dexamethasone (Sigma-Aldrich, USA), and 1 ?g/mL insulin (Sigma-Aldrich, USA)), and again treated with DMEM containing 10% FBS and 1 ?g/mL insulin. Thereafter, the cells were differentiated into adipocytes while the medium was exchanged with DMEM supplemented with 10% FBS every two days. At the end of differentiation, DMEM medium supplemented with 10% FBS was treated with 3-sialyllactose or 6-sialyllactose at 0, 0.01, 0.1, 1, and 10 mM for 10 days.

[0295] (2) Oil-Red O Staining

[0296] After differentiation in 6-well plates, 3T3-L1 adipocytes treated with -sialyllactose or 6-sialyllactose were washed two times with PBS, and then 2 ml of 10% formalin (Sigma-Aldrich, USA) was added thereto to fix the adipocytes at room temperature for 10 minutes. After the fixed cells were dried, the cells were treated with 1 ml of Oil Red O stain reagent (Sigma-Aldrich, USA) for 20 minutes, and then sufficiently washed four times with distilled water to remove the Oil Red O stain reagent. Thereafter, 1 ml of 100% isopropanol (Sigma-Aldrich, USA) was added to effuse stained adipocytes, and then the amount of accumulated fat was measured using absorbance at 500 nm.

[0297] (3) Free Glycerol Measurement

[0298] The medium, obtained by treating 3T3-L1 adipocytes differentiated in 6-well plates with 6-siallylactose at concentrations of 0, 0.01, 0.1, 1, and 10 mM, and culturing the adipocytes for 10 days, was sampled in an eppendorf tube, followed by free glycerol analysis using a glycerol cell-based assay kit (cayman, 10011725, USA). 100 uL of free glycerol reagent was added to 25 ul of the medium, followed by incubation at room temperature for 15 minutes, and then the absorbance was measured at 540 nm.

[0299] (4) Cell Viability Measurement

[0300] After differentiation, 3T3-L1 adipocytes treated with 6-siallylactose were measured for cell viability using a cell counting kit-8 (Dojindo Molecular Technologies, Inc. USA). After drug treatment, 10 uL of CCK-8 reagent was added, followed by incubation for 2 hours, and the absorbance was measured at 450 nm.

[0301] As can be confirmed from FIGS. 22 and 23, the intracellular fat was reduced by the addition of siallylactode in the differentiated adipocytes, and especially, the intracellular fat was greatly reduced in the test groups with 6-siallylactose added.

[0302] FIGS. 22a and 22b show the intercellular fat changes when 6-siallactose (FIG. 22a) and 3-siallactose (FIG. 22b) were administered into differentiated adipocytes. NT represents a control group, and 0.01, 0.1, 1, and 10 mM represent test groups with 0.01, 0.1, 1, 10 mM 6-siallylactose (FIG. 22a) and 3-siallylactose (FIG. 22b), respectively.

[0303] FIGS. 23a and 23b are optical microscopic images of cells (Oil red 0 test) showing intercellular fat changes when 6-siallactose (FIG. 23a) and 3-siallactose (FIG. 23b) were administered into differentiated adipocytes. In the drawings, NT represents a control group, and 0.01, 0.1, 1, and 10 mM represent test groups treated with 0.01, 0.1, 1, 10 mM 6-siallylactose (FIG. 23a) and 3-siallylactose (FIG. 23b), respectively.

[0304] As can be confirmed from FIG. 24, siallylactoses did not affect cell viability up to 10 mM in differentiated adipocytes.

[0305] FIG. 24 shows the effect of 6-sialyllactose on cell viability in differentiated adipocytes. NT represents a control group, and 0.01, 0.1, 1, 10, and 100 mM represent test groups treated with 0.01, 0.1, 1, 10, and 100 mM 6-siallylactose, respectively.

[0306] In additioin, as can be confirmed from FIG. 25, siallylactoses reduced intracellular fat by increasing the glycerol secretion of adipocytes in a dose-dependent manner.

[0307] Sialyllactoses stimulated the glycerol secretion regardless of cell viability in differentiated adipocytes, and especially, 6-sialyllactose significantly reduced intracellular fat.

[0308] FIG. 25 shows glycerol secretion changes by sialyllactose in differentiated adipocytes In the drawings, NT represents a control group, and 0.01, 0.1, 1, and 10 mM represent test groups with 0.01, 0.1, 1, 10 mM 3-siallylactose, respectively.

Example 15: Subcutaneous Fat Changes of High-Fat Diet Mice by Subcutaneous Injection of Siallylactose (3-SL & 6-SL) Compositions

[0309] (1) High-Fact Diet Mice

[0310] 4-Week-old C56BL/6 mice were purchased from Dooyeul Biotech (Korea). Water was freely accessible, and a commercially available pellet feed (Dooyeul Biotech, Korea) was given for one week. A high-fact (60% fat) diet purchased from Research Diets (New Brunswick, U.S.A) was supplied for 28 days to construct fat-accumulated mice.

[0311] (2) Siallylactose Subcutaneous Injection

[0312] 0.5 ml of 100 mM 3-siallylactose or 6-siallylactose dissolved in a phosphate buffer was subcutaneously injected two times (day 0 and day 4) into four to five sites of the dorsal region of the mouse having fat accumulation induced by a high-fat diet. On day 4 and 7, the skin was observed by the naked eye and dermoscopy. A phosphate buffer was used as a control group (CTL).

[0313] As can be confirmed from FIGS. 26a and 26b, the subcutaneous injection of siallylactoses reduced the subcutaneous fat in high-fat diet mice, thereby inducing the wrinkles on the skin surface. Especially, 6-siallylactose greatly reduced subcutaneous fat.

[0314] FIGS. 26a and 26b show skin changes of high-fat diet mice by subcontenous injection of sialyllactoses. The skin changes were confirmed by the naked eye and dermoscopy (FIGS. 26a and 26b). CTL represents a control group, and 3-sillylactose (3-SL) and 6-sillylactose (6-SL) represent test groups.

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