摘要:
Disclosed are a method for quantitative determination of bilirubin and a reagent for the method, which are useful in clinical examinations. The method comprises subjecting the bilirubin in a sample to coexist with ascorbate oxidase and a reaction promoter in aqueous medium to thereby oxidize the bilirubin, measuring the change in absorbance of the aqueous medium and comparing the change in absorbance with a calibration curve. The reagent comprises ascorbate oxidase and a reaction promoter.
摘要:
The present invention relates to a method for conveniently quantitating TGs contained in various lipoproteins. A method for quantitating trigyceride (TG) in a particular lipoprotein which comprises eliminating free glycerol from a sample containing free glycerol and TG in the particular lipoprotein, then allowing the resulting sample to react with lipoprotein lipase and an enzyme system which generates hydrogen peroxide from free glycerol, and quantitating the generated hydrogen peroxide, is provided.
摘要:
Provided is a method of determining the amount of cholesterol in high-density lipoprotein (HDL), which comprises reacting an HDL-containing sample with cholesterol esterase and cholesterol oxidase or cholesterol dehydrogenase in the presence of a reagent for aggregating lipoproteins except HDL, and determining the amount of hydrogen peroxide or reductive co-enzyme formed therein.
摘要:
The present invention relates to a method for conveniently quantitating TGs contained in various lipoproteins. A method for quantitating trigyceride (TG) in a particular lipoprotein which comprises eliminating free glycerol from a sample containing free glycerol and TG in the particular lipoprotein, then allowing the resulting sample to react with lipoprotein lipase and an enzyme system which generates hydrogen peroxide from free glycerol, and quantitating the generated hydrogen peroxide, is provided.
摘要:
Provided is a method of determining the amount of cholesterol in high-density lipoprotein (HDL), which comprises reacting an HDL-containing sample with cholesterol esterase and cholesterol oxidase or cholesterol dehydrogenase in the presence of a reagent for aggregating lipoproteins- except HDL, and determining the amount of hydrogen peroxide or reductive co-enzyme formed therein.
摘要:
The present invention relates to a method for the determination of cholesterol in low-density lipoprotein (LDL) in a sample containing LDL, which comprises eliminating cholesterol in high-density lipoprotein in the sample, subjecting the sample to a reaction utilizing the action of a cholesterol ester-hydrolyzing enzyme and the action of a cholesterol-oxidizing enzyme or of cholesterol oxidoreductase, and determining the amount of hydrogen peroxide or a reduced type coenzyme generated by the reaction.
摘要:
Provided is a method for simply and accurately measuring sphingomyelin in a sample, and a kit therefore. The method is a method for measuring sphingomyelin in a sample, comprising reacting the sample with a phospholipase D which does not react with sphingomyelin and lysophosphatidylcholine but reacts with phosphatidylcholine, a lysophospholipase or a monoglyceride lipase, and a choline oxidase, eliminating the formed hydrogen peroxide, reacting the resultant with a phospholipase D which does not react with glycerol-3-phosphorylcholine and free fatty acid but reacts with sphingomyelin, and a choline oxidase, and measuring the formed hydrogen peroxide.
摘要:
Provided is a method for simply and accurately measuring sphingomyelin in a sample, and a kit therefor. The method is a method for measuring sphingomyelin in a sample, comprising reacting the sample with a phospholipase D which does not react with sphingomyelin and lysophosphatidylcholine but reacts with phosphatidylcholine, a lysophospholipase or a monoglyceride lipase, and a choline oxidase, eliminating the formed hydrogen peroxide, reacting the resultant with a phospholipase D which does not react with glycerol-3-phosphorylcholine and free fatty acid but reacts with sphingomyelin, and a choline oxidase, and measuring the formed hydrogen peroxide.
摘要:
The present invention provides a simple and sensitive aqueous method for determining cholesterol in remnant-like particles in a biological sample without the separation of components of the sample. The method comprises contacting the sample with (i) cholesterol esterase, (ii) cholesterol oxidase or cholesterol dehydrogenase, and (iii) phospholipase with a surfactant that inhibits cholesterol oxidase or cholesterol dehydrogenase in lipoproteins other than remnant-like particles in the presence of oxygen or an oxidized coenzyme. Formed hydrogen peroxide or reduced coenzyme is measured and correlated to a quantitative determination of cholesterol in remnant-like particles.
摘要:
The present invention provides a method, a reagent and a kit for simple and sensitive determination of cholesterol in remnant-like particles without separation of components of a sample. A method for quantitatively determining remnant-like particle cholesterol in a sample, which comprises: in an aqueous medium containing the sample and in the presence of a combination of specific surfactants and a phospholipid-hydrolyzing enzyme, allowing remnant-like particle cholesterol in the sample to react with cholesterol esterase and cholesterol oxidase or cholesterol dehydrogenase (in the presence of oxidized coenzyme); and determining the formed hydrogen peroxide or reduced coenzyme.