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86 results about "Hypolipidemic Drugs" patented technology

Hypolipidemic drug, also called lipid-lowering drug, any agent the reduces the level of lipids and lipoproteins (lipid-protein complexes) in the blood. Lipoproteins bind cholesterol and can accumulate in blood vessels.

Modified spectrophotometry for detecting activity of HMG-CoA reducase and applications thereof

The invention discloses a modified spectrophotometry for detecting activity of HMG-CoA reducase and applications thereof. The detecting method comprises the following steps: a. preparing liver microsome by centrifuging fresh liver organics; b. carrying out weight drop, homogenate, dilution and centrifugation on the liver microsome, then obtaining a supernatant, and obtaining the reducase source containing dissolvable HMG-CoA; c. detecting the protein content of HMG-CoA reducase source, and diluting the HMG-CoA reducase source to have the known concentration; and d. adding the HMG-CoA reducase source to the optimized reaction system, and detecting the OD340 value and calculating the enzyme activity. The detecting system for HMG-CoA reducase inhibitor is established on the basis of the detecting method and is used for calculating the enzyme activity inhibition rate and half-inhibition concentration (IC50), and can be used for screening hypolipidemic drugs. The modified spectrophotometry has the advantages of system optimization, high safety, low price, batch filtration, credible conclusion and the like, can effectively screen the HMG-CoA reducase activity inhibitor, and provides a simple and quick method for developing the hypolipidemic drugs.
Owner:WUHAN UNIV

Lipid-decreasing pentapeptide derived from Miichthysmiiuy swimming bladders and application of lipid-decreasing pentapeptide

The invention discloses lipid-decreasing pentapeptide derived from Miichthysmiiuy swimming bladders. The amino acid sequence of the lipid-decreasing pentapeptide is Gly-Ile-Glu-Trp-Ala(GIEWA), and themolecular weight determined by virtue of ESI-MS is 574.64Da. The lipid-decreasing pentapeptide is prepared by the steps of processing the Miichthysmiiuy swimming bladders by virtue of alkali leachingand alcohol degreasing so as to obtain degreased Miichthysmiiuy swimming bladders, carrying out enzymolysis by virtue of alkaline protease, and carrying out ultrafiltration, ion exchange resin chromatography, gel column chromatography and reversed-phase high performance liquid chromatography purification on enzymatic hydrolysate, so as to obtain the lipid-decreasing pentapeptide derived from theMiichthysmiiuy swimming bladders. The invention simultaneously discloses application of the lipid-decreasing pentapeptide derived from the Miichthysmiiuy swimming bladders in lipid-decreasing active components, health products and food additives. According to the lipid-decreasing pentapeptide derived from the Miichthysmiiuy swimming bladders, adipogenesis genes can be reduced, the oxidation of fatty acid beta can be promoted, the generation of lipids can be promoted, and the pentapeptide has good lipid-decreasing activity, and can be developed into lipid-decreasing drugs, health products and food additives.
Owner:ZHEJIANG OCEAN UNIV

Preparation method of hydrophobically modified poly-cation chelating agent

The invention discloses a preparation method of a hydrophobically modified poly-cation chelating agent. The preparation method comprises the following steps (1) dissolving allylamine and sodium carbonate in an organic solvent, dripping bromo-hydrocarbon, and filtering, washing and concentrating to obtain N-alkyl allylamine after reaction; (2) dripping hydrochloric acid into N-alkyl allylamine to be neutral, and collecting and drying precipitate to obtain N-alkyl allylamine hydrochloride; (3) dissolving N-alkyl allylamine hydrochloride and dimethyl diallyl ammonium chloride in water, adding an initiator into the mixture, performing polymerization reaction, dripping absolute ethyl alcohol to the reaction product, and collecting precipitate to produce the hydrophobically modified poly-cation chelating agent. The fatty alkyl chain is introduced into the side chain of macromolecule, so that compared with the commercially available hydrophobically modified poly-cation chelating agent as a cholic acid chelating agent, the toxic and side effects of the hydrophobically modified poly-cation chelating agent are obviously reduced due to hydrophobic association action; the hydrophobically modified poly-cation chelating agent has wide application prospect in the development field of new hypolipidemic drugs.
Owner:SHANDONG UNIV
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