C12Y304/21074

Snake venom thrombin-like enzyme marker peptide of <i>Agkistrodon halys pallas </i>and its application in the species identification of hemocoagulase for injection

The present invention provides a snake venom thrombin marker peptide of Agkistrodon Halys Pallas and an application of the snake venom thrombin-like enzyme in identifying species of Hemocoagulase for Injection. The application includes the following steps of: dissolving a to-be-detected sample and a reference substance of the marker peptide respectively to prepare a test solution and a reference solution, and conducting alkylation reduction on the test solution and the reference solution with dithiothreitol and iodoacetamide; after diluting products with an ammonium bicarbonate solution, adding enzyme for hydrolysis; and after enzymolysis is finished, conducting centrifugation at a high speed, and injecting a supernatan into a liquid chromatography-mass spectrometer for analysis. This method is simple, convenient and rapid, is strong in specificity, fills the gap in identifying the source of species of the snake venom thrombin-like enzyme of Agkistrodon Halys Pallas and improves the quality control level.

SNAKE VENOM THROMBIN-LIKE ENZYME MARKER PEPTIDE OF AGKISTRODON HALYS PALLAS AND ITS APPLICATION IN THE SPECIES IDENTIFICATION OF HEMOCOAGULASE FOR INJECTION

The present invention provides a snake venom thrombin marker peptide of Agkistrodon Halys Pallas and an application of the snake venom thrombin-like enzyme in identifying species of Hemocoagulase for Injection. The application includes the following steps of: dissolving a to-be-detected sample and a reference substance of the marker peptide respectively to prepare a test solution and a reference solution, and conducting alkylation reduction on the test solution and the reference solution with dithiothreitol and iodoacetamide; after diluting products with an ammonium bicarbonate solution, adding enzyme for hydrolysis; and after enzymolysis is finished, conducting centrifugation at a high speed, and injecting a supernatan into a liquid chromatography-mass spectrometer for analysis. This method is simple, convenient and rapid, is strong in specificity, fills the gap in identifying the source of species of the snake venom thrombin-like enzyme of Agkistrodon Halys Pallas and improves the quality control level.

RECOMBINANT FUSION PROTEINS FOR PREVENTING OR TREATING ADHESIONS OF TISSUES OR ORGANS
20170253864 · 2017-09-07 ·

The invention relates to recombinant fusion proteins comprising a fibrinogenolytic enzyme having an amino acid sequence that is C-terminally and/or N-terminally linked to the amino acid sequence of at least one high-molecular inert stabilization domain with a molecular weight of >50 kDa, for the prevention or treatment of adhesions at tissues or organs, in particular peritoneal adhesions following surgical interventions.

DEVICE FOR FIBRIN-BIOPOLYMER-FORMING SUBSTANCE APPLICATION
20220241521 · 2022-08-04 ·

The two devices described allow for greater control over application of a fibrin biopolymer and yet remain simple enough to be used by both medical personnel and by non-medical workers. One of the devices includes chambers where components necessary for formation of a fibrin biopolymer are stored and are pushed by plungers connected to an actuator upon the actuator receiving pressure from the user, with the components mixing in a chamber within the device and flowing out of a tube connected to the mixing chamber before formation of the fibrin biopolymer is completed. The other device dispenses formulations that include components necessary for formations of a fibrin biopolymer onto a skin of a patient using one or more propellants, with the formation of the fibrin biopolymer being initiated after the formulations are dispensed on the patient's skin and are intentionally mixed together.

FIBRIN BIOPOLYMER FORMATION AND APPLICATION DEVICE
20220241152 · 2022-08-04 ·

The two devices described allow for greater control over application of a fibrin biopolymer and yet remain simple enough to be used by both medical personnel and by non-medical workers. One of the devices includes chambers where components necessary for formation of a fibrin biopolymer are stored and are pushed by plungers connected to an actuator upon the actuator receiving pressure from the user, with the components mixing in a chamber within the device and flowing out of a tube connected to the mixing chamber before formation of the fibrin biopolymer is completed. The other device dispenses formulations that include components necessary for formations of a fibrin biopolymer onto a skin of a patient using one or more propellants, with the formation of the fibrin biopolymer being initiated after the formulations are dispensed on the patient's skin and are intentionally mixed together.

RECOMBINANT FUSION PROTEINS FOR PREVENTING OR TREATING ADHESIONS OF TISSUES OR ORGANS
20210189368 · 2021-06-24 ·

The invention relates to recombinant fusion proteins comprising a fibrinogenolytic enzyme having an amino acid sequence that is C-terminally and/or N-terminally linked to the amino acid sequence of at least one high-molecular inert stabilization domain with a molecular weight of >50 kDa, for the prevention or treatment of adhesions at tissues or organs, in particular peritoneal adhesions following surgical interventions.

NEUTROPHIL ACTIVATION REGULATOR

Provided are a neutrophil activation regulator and a therapeutic agent against diseases caused by neutrophil activation. A thrombin-like enzyme is used as an active ingredient of the neutrophil activation regulator and the therapeutic agent against diseases caused by neutrophil activation.

Recombinant batroxobin mixed composition and a hemostatic powder or hemostatic pad comprising same

The present invention relates to a novel recombinant batroxobin mixture, a hemostatic composition comprising the same, and a method for preparing the same. According to the present invention, the hemostatic composition of the present invention has an excellent hemostatic effect by suppressing rebleeding, and maintains activity thereof even when prepared in a solid form, and thus, the composition of the present invention can be easily used by being applied as a topical hemostatic agent.

Recombinant fusion proteins for preventing or treating adhesions of tissues or organs
10837007 · 2020-11-17 · ·

The invention relates to recombinant fusion proteins comprising a fibrinogenolytic enzyme having an amino acid sequence that is C-terminally and/or N-terminally linked to the amino acid sequence of at least one high-molecular inert stabilization domain with a molecular weight of >50 kDa, for the prevention or treatment of adhesions at tissues or organs, in particular peritoneal adhesions following surgical interventions.

FIBRINOGEN AS ADJUVANT FOR ANTIMICROBIAL AGENTS AND THERAPY

The present invention relates to a composition comprising fibrinogen for increasing the sensitivity of microorganisms for an antimicrobial compound. The invention may be used to alleviate the problem of antimicrobial resistance of microbial biofilms or aggregates, for example of microbial biofilms on medical devices, in particular indwelling devices, or in wound beds. The device or wound bed may be (pre-)coated with fibrinogen to increase antimicrobial susceptibility. The antimicrobial may be supplied separately from or together with the fibrinogen.