The disclosure provides methods of preventing or treating heart failure in a mammalian subject, reducing risk factors associated with heart failure, and/or reducing the likelihood or severity of heart failure. The disclosure also provides methods of preventing, or treating LV remodeling in a mammalian subject, and/or reducing the likelihood or severity of LV remodeling. The methods comprise administering to the subject an effective amount of an aromatic-cationic peptide. In some embodiments, the methods comprise administering to the subject an effective amount of an aromatic cationic peptide to reduce levels of C-reactive protein, tumor necrosis factor alpha, interleukin 6, reactive oxygen species, Nt-pro BNP, and/or cardiac troponin I, and/or reduce expression levels of MLCL AT1 and/or ALCAT 1 in subjects in need thereof.

The disclosure provides methods of preventing or treating Friedreich's ataxia in a mammalian subject, reducing risk factors, signs and/or symptoms associated with Friedreich's ataxia, and/or reducing the likelihood or severity of Friedreich's ataxia. The methods comprise administering to the subject an effective amount of an aromatic-cationic peptide to e.g., reduce oxidative stress, increase mitochondrial metabolism, or a combination thereof.

The present invention provides a salt of a phenylpropionamide derivative and a preparation method therefor. The present invention specifically provides an acetate, hydrochloride, phosphate, citrate, benzoate, or fumarate of 4-amino-1-((2R,5R,8R,14R)-2-(4-aminobutyl)-8-benzyl-5-isobutyl-4,7,10-trioxo-14-phenyl-3,6,9,12-tetraazapentadecan-1-acyl)piperidine-4-carboxylic acid, and a preparation method therefor. The salt of the compound of formula (I) of the present invention has good stability, and the simple process thereof facilitates easy operation. The invention is better suited for clinical treatment.

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The present disclosure provides aromatic-cationic peptide compositions and methods of using the same. The methods comprise use of the peptides in electron transport, inhibition of cardiolipin peroxidation, and inhibition of apoptosis and necrosis to treat, prevent or ameliorate the symptoms of autoimmune diseases or condition.

The present invention relates to novel cyclic peptidomimetics, pharmaceutical compositions containing them and their use in the treatment of diseases associated with angiogenesis especially tumors and chronic inflammation in psoriasis, diabetes, degenerative diseases of the eye (ARMD), nephropathy and neuropathy.

The disclosure provides methods of preventing, ameliorating or treating disruption of mitochondrial function and symptoms thereof. The methods provide administering aromatic-cationic peptides in effective amounts to prevent, treat or ameliorate the disruption of mitochondrial oxidative phosphorylation in a cell such as that found in a subject suffering from, or predisposed to a mitochondrial disease or disorder. In some embodiments, the methods comprise administering to a subject suffering from, or at risk for a mitochondrial disease or disorder, an effective amount of an aromatic-cationic peptide to subjects in need thereof.

Compositions comprising an antioxidant directed or indirectly conjugated to an aromatic-cationic peptide are provide. Said antioxidants are selected from TEMPO, Tro, PBN, AHDP, DBHP, Caf and Hem and may be conjugated to the aromatic-cationic peptide directly or indirectly via a linker to the N-terminus, C-terminus or a side chain of an amino acid residue of the aromatic-cationic peptide. In some embodiments, the aromatic-cationic peptide is 2,6-Dmt-D-Arg-Phe-Lys-NH.sub.2, Phe-D-Arg-Phe-Lys-NH.sub.2 or D-Arg-2,6-Dmt-Lys-Phe-NH.sub.2. These conjugates have increased antioxidant activity as compared to the unconjugated aromatic-cationic peptide and have utility in treating complex regional pain syndrome.

The present technology provides methods of generating the peptides, and pharmaceutically acceptable salts of the peptides and intermediates thereof. In some embodiments, the peptide is D-Arg-26-Dmt-Lys-Phe-NH.sub.2.

The invention relates to carrier complexes and methods for delivering molecules to cells. The carrier complexes comprises a molecule and an aromatic cationic peptide in accordance with the invention. In one embodiment, the method for delivering a molecule to a cell comprises contacting the cell with a carrier complex. In another embodiment, the method for delivering a molecule to a cell comprises contacting the cell with a molecule and an aromatic cationic peptide.

The present invention discloses crosslinked poly(alkylene glycol) (PAG)-based hydrogel compositions, systems containing a plurality of cancer cells in contact with a cell culture media and encapsulated in the crosslinked PAG-based hydrogel composition and methods of making such crosslinked hydrogel compositions and systems. Also disclosed herein are methods of using such compositions and systems, such as, for example for screening an agent for effectiveness of the agent against cancer cells. Also disclosed herein are kits containing one or more components including one or more systems of the present disclosure and one or more instructions.