WO1996028734A1 - Method of quantitating cholesterol in low-density lipoprotein - Google Patents
Method of quantitating cholesterol in low-density lipoprotein Download PDFInfo
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- WO1996028734A1 WO1996028734A1 PCT/JP1996/000664 JP9600664W WO9628734A1 WO 1996028734 A1 WO1996028734 A1 WO 1996028734A1 JP 9600664 W JP9600664 W JP 9600664W WO 9628734 A1 WO9628734 A1 WO 9628734A1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/92—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving lipids, e.g. cholesterol, lipoproteins, or their receptors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S435/00—Chemistry: molecular biology and microbiology
- Y10S435/975—Kit
Definitions
- the present invention relates to a low-density lipoprotein that is important in the diagnosis of arteriosclerosis in the field of clinical diagnosis.
- the present invention relates to a method for determining cholesterol (LDL cholesterol) in (LDL).
- LDL cholesterol is determined by first measuring the total amount of cholesterol in the sample, then separately adding a precipitant for LDL and very low density lipoprotein (VLDL) to the sample, centrifuging, and centrifuging the supernatant.
- VLDL very low density lipoprotein
- Cholesterol (hereinafter referred to as HDL cholesterol) in lipoprotein (HDL) was measured and calculated using the Friedewald conversion formula. Clinical Publishing Co., pp. 615, 1995).
- HDL cholesterol lipoprotein
- simply adding a serum sample directly to a reagent containing cholesterol esterase and cholesterol oxidase is no different from a system that measures total cholesterol, and there is no specificity for LDL cholesterol.
- JP-A-58-165800 discloses a method for directly measuring the amount of LDL cholesterol in the presence of a special surfactant without a separation operation.
- HDL cholesterol reacts simultaneously with LDL cholesterol, so that the LDL specificity is low, and the setting of reaction conditions is complicated, and it is difficult to apply the method to various samples.
- Japanese Patent Application Laid-Open No. 7-280812 also discloses that once LDL is aggregated, cholesterol in lipoproteins other than LDL is eliminated, the aggregated LDL is deaggregated, and LDL cholesterol is subjected to an enzymatic reaction to reduce LDL cholesterol. A method for measuring is disclosed.
- the present inventors have determined that a) lipoproteins other than HDL, namely LDL, VLDL and In the presence of a reagent that inhibits the reaction of ilomicron (CM), HDL cholesterol is specifically reacted with a cholesterol reaction reagent to eliminate it, and then, if necessary, in the presence of a reagent that enables the reaction of LDL cholesterol.
- Cholesterol in a sample containing 1 ⁇ 0 cholesterol can be specifically quantified without separation by using an enzyme reaction for cholesterol quantification using The cholesterol in the lipoproteins other than LDL is reacted with cholesterol to eliminate the cholesterol, and then the cholesterol reaction reagent is used to carry out an enzymatic reaction to determine cholesterol.
- the inventors have found that cholesterol can be specifically quantified, and have reached the present invention.
- the reaction inhibition of lipoproteins other than HDL means that the lipoproteins other than HDL are aggregated or the reactivity of the outer wall of the lipoproteins other than HDL is reduced so that only the outer wall of these lipoproteins is not selectively disrupted. By doing so, it refers to exposing cholesterol in HDL to a state capable of selectively undergoing an enzymatic reaction. Also, enabling LDL cholesterol to react refers to exposing LDL cholesterol to a state capable of undergoing an enzymatic reaction by disrupting the outer wall of LDL. Conversely, the reaction inhibition of LDL only means that LDL is aggregated or the reactivity of the outer wall of LDL is reduced to selectively prevent only the outer wall of LDL from collapsing. To expose cholesterol to a state where it can be selectively enzymatically reacted.
- HDL cholesterol is eliminated from a sample containing LDL, and then cholesterol esterase and cholesterol oxidase or cholesterol oxidoreductase are acted on in the presence of a reagent capable of reacting LDL cholesterol, if necessary.
- the present invention relates to a method for quantifying LDL cholesterol, characterized in that the amount of hydrogen peroxide or reduced coenzyme generated is quantified.
- a reagent for quantifying cholesterol in LDL which comprises a reagent for inhibiting the reaction of lipoproteins other than HDL and a reagent for enabling the reaction of cholesterol in LDL, or inhibiting the reaction of lipoproteins other than HDL Cholesterol in LDL that combines a reagent that reacts with cholesterol in LDL
- a reagent for quantifying cholesterol in LDL containing a reagent that inhibits only LDL as a component, a reagent that inhibits reaction of only LDL, and a reagent that makes cholesterol in LDL capable of reacting, It is possible to provide a reagent for quantifying cholesterol in LDL, which is obtained by combining a reagent for quantifying cholesterol or a reagent that inhibits the reaction of only LDL with a reagent that enables the reaction of cholesterol in LDL.
- One of the above-mentioned quantification methods is to perform HD with a cholesterol reaction reagent in the presence of a reagent that inhibits riboproteins other than HDL, that is, LDL, VLDL and CM, and then react with cholesterol specifically to eliminate it.
- Cholesterol esterase and cholesterol oxidase or cholesterol oxidoreductase are allowed to act in the presence of a reagent capable of reacting LDL cholesterol, thereby quantifying the generated hydrogen peroxide or reduced coenzyme.
- Another method is to eliminate cholesterol in lipoproteins other than LDL using a cholesterol reagent in the presence of a reagent that inhibits only LDL, and then remove cholesterol esterase and cholesterol oxidase.
- cholesterol oxidoreductase is activated to generate hydrogen peroxide or Is a method for quantifying reduced coenzyme.
- cholesterol esterase and cholesterol oxidase are allowed to act on a sample containing HDL and LDL in the presence of a reagent that inhibits the reaction of lipoproteins other than HDL to generate hydrogen peroxide, and then or simultaneously.
- Hydrogen peroxide, peroxidase and an aniline compound, peroxidase and a phenolic compound, or peroxidase and 41-aminoantipyrine to remove hydrogen peroxide.
- LDL lipid-derived neuropeptide
- a suitable surfactant cyclodextrins, or cholesterol esterase that acts on LDL to develop LDL cholesterol.
- acting on LDL means exposing LDL cholesterol to a state capable of undergoing an enzymatic reaction by disrupting the outer wall of the LDL that has been inhibited.
- cholesterol esterase and cholesterol are added to the LDL-containing sample.
- a chromogen addition of peroxidase when using lyase
- a reagent that can react LDL cholesterol the cholesterol ester hydrolase described below makes LDL cholesterol reactable
- cholesterol ester hydrolase most Cholesterol esterase to be added to it by color development by adding unnecessary
- the method of the present invention can be applied to body fluids containing LDL such as blood and urine.
- not reactive with LDL means that the outer wall of LDL is not broken down and LDL cholesterol is not exposed to a state capable of undergoing an enzymatic reaction.
- the amount of LDL cholesterol is calculated by comparing the absorbance measured using a standard solution containing a known concentration of LDL cholesterol under the same conditions. Note that 1 and 2 can be performed simultaneously.
- An example of a reagent that inhibits the reaction of a riboprotein other than HDL includes a combination of an aggregating agent and a divalent metal salt.
- the aggregating agent include heparin or a salt thereof, lintungstic acid or a salt thereof, dextran sulfate or a salt thereof, polyethylene glycol, sulfated cyclodextrin or a salt thereof, a sulfated oligosaccharide or a salt thereof, or a salt thereof.
- the cyclodextrin include cyclodextrin, -cyclodextrin, arcyclodextrin, and the like.
- Examples of the oligo include maltotriose, maltotetraose, maltopentaose, and maltopentaose.
- Examples include maltohexaose and maltohepnoose
- examples of the salt include sodium salt, potassium salt, lithium salt, ammonium salt, magnesium salt and the like.
- examples of the divalent metal salt include a magnesium salt, a calcium salt, a manganese salt, a nickel salt, a cobalt salt and the like.
- a flocculant 0.02 to 1 OmM molecular weight of 5,000 to 20,000 Or a salt thereof, having a molecular weight of 0.1 to 1 OmM, a lintanstenic acid or a salt thereof having a molecular weight of 400 to 800, and a molecular weight of 0.0 to 5 mM having a molecular weight of 100 to 500 mM.
- Dextran sulfate or a salt thereof 0.1 to 20 mM molecular weight 100 000 to 100 000 Dextran sulfate or a salt thereof, 0.3 to 100 mM molecular weight 400 000 to 25 Polyethylene glycol (PEG) with a molecular weight of 0.1 to 500 mM, sulfated cyclodextrin or a salt thereof with a molecular weight of 0.1 to 300 mM, and a molecular weight of 0.1 to 5 OmM.
- PEG Polyethylene glycol
- a sulfated oligosaccharide of 400 to 300, a salt thereof or a mixture thereof is preferably used.
- heparin or a salt thereof having a molecular weight of 0.01 to 1 mM and a molecular weight of 140 to 1600, and a molecular weight of 0.1 to 3 mM having a molecular weight of 500 to 700 Phosphotungstic acid or a salt thereof, 0.01 to 5 mM molecular weight 1 500 000 to 250 000 Dextran sulfate or a salt thereof, 0.1 to 10 mM molecular weight 100 000 to Dextran sulfate or its salt at 500,000, molecular weight of 1.0-5 OmM PEG of 500,000-200,000, molecular weight of 0.1--10 mM 100,000-200,000 Sulfated cyclodextrin or a salt thereof, 0.1 to 10 mM sulfated oligosaccharide having a molecular weight of 400 to 2000, a salt thereof, or a mixture thereof is used.
- divalent metal salt examples include a magnesium salt of 0.1 to 5 OmM, a calcium salt, a manganese salt, a nickel salt, a cobalt salt and the like, and preferably, a magnesium salt of 0.1 to 50 mM is used. .
- an anti-apoB antibody, an anti-apoC antibody, or the like can be used as a reagent that inhibits a reaction of a riboprotein other than HDL.
- Anti-apo B and anti-apo C antibodies include anti-apo B antiserum or anti-apo C antiserum obtained by immunizing rabbits with apoprotein B or apoprotein C purified from human serum, and ammonium sulfate precipitation. IgG fraction obtained by salting, or anti-apo B monoclonal antibody or anti-apo C monoclonal antibody obtained by immunizing mice with the above-mentioned apoprotein B or apoprotein C (Introduction to monoclonal antibody experimental procedures, Ando Minami, Kodansha Scientific, 21st, 1991).
- enzymes include commercially available animals having the ability to hydrolyze cholesterol esters, plants or microorganism-derived cholesterol esterase ⁇ lipoprotein lipase, animals that oxidize cholesterol to produce hydrogen peroxide, and plants. And cholesterol dehydrogenase derived from animals, plants and microorganisms, and the like.
- Those obtained by chemically modifying the above enzyme with a group containing lenglycol as a main component, a group containing a saccharide in the structure of a water-soluble oligosaccharide residue or the like, a sulfopropyl group, a polyurethane group, or the like are also used.
- these genes are obtained by genetic manipulation and introduced into another microorganism and expressed, or an enzyme chemically modified thereof, or an enzyme obtained by modifying these genes or expressed, or A chemically modified product is also preferably used.
- a reagent (chemical modifier) for modifying the enzyme for example, a compound in which a group capable of binding to an amino group is bonded to polyethylene glycol ⁇ the N-hydroxysuccinimide group is added to polyethylene glycol VFM 4101 [manufactured by NOF CORPORATION], etc., in which a group capable of binding to an amino group such as is used, etc.), AKM series having a polyalkylene glycol structure and an acid anhydride structure, AKM series and ADM Series, ACM Series [All manufactured by Nippon Oil & Fats Co., Ltd.
- Polyethylen glycol monomethacrylate a compound in which a group capable of binding to an amino group is bonded to a copolymer of polyethylene glycol and propylene glycol.
- Examples include a copolymer of lyl monomethyl ether and maleic anhydride.
- Polyurethane P400 which is a chemical modifier of polyurethane (Enzyme modification set by Behringer Mannheim)
- Dextran T400 which is a chemical modifier of dextran
- 3-propane sultone can also be used.
- These chemical modifiers can be used to convert the enzyme into a group containing polyethylene glycol as the main component, a group containing polypropylene glycol as the main component, a group having a copolymer of polypropylene glycol and polyethylene glycol, a group containing a saccharide in the structure, and sulfopropyl. Group or a polyurethane group.
- the enzyme is dissolved in a buffer solution such as a buffer solution having a pH of 8 or more, and at 0 to 50 ° C, for example, 0.01 to 500-fold molar amount of sunbrite is added. ⁇ 6 0 Stir for minutes.
- a buffer solution such as a buffer solution having a pH of 8 or more, and at 0 to 50 ° C, for example, 0.01 to 500-fold molar amount of sunbrite is added. ⁇ 6 0 Stir for minutes.
- This reaction solution is used as it is or, if necessary, after removing low-molecular substances by an ultrafiltration membrane.
- Cholesterol ester hydrolase, cholesterol oxidase and cholesterol oxidoreductase are preferably used at 0.1 to 100 uZml.
- Cholesterol ester hydrolase, cholesterol oxidase, or cholesterol oxidoreductase that is not reactive with LDL include polyethylene glycol-based groups, polypropylene glycol-based groups, and water-soluble oligosaccharide residues.
- cholesterol ester hydrolase, cholesterol oxidase or cholesterol oxidoreductase is chemically modified with a saccharide-containing group, a sulfopropyl group, a polyurethane group or the like in the structure.
- cholesterol esterase cholesterol oxidase or cholesterol oxidoreductase acting on LDL
- unmodified cholesterol esterase cholesterol oxidase or cholesterol oxidoreductase
- Some modifications can be used to the extent that they only affect LDL.
- the modifying agent include the above-mentioned Sun Bright VFM 4101 [manufactured by NOF Corporation].
- the unit used for the enzyme is preferably 0.5 to 100 uZm1.
- Surfactants used to have reactivity with LDL include nonionic surfactants such as Triton X-100, cationic surfactants and anionic surfactants. Used in the range of ⁇ 10%.
- cyclodextrins used to have reactivity with LDL include cyclodextrin, —cyclodextrin, arcyclodextrin, dimethyl monocyclodextrin, dimethyl / 3-cyclodextrin.
- Trilin dimethyl-7-cyclodextrin, hydroxypropyl monocyclodextrin, hydroxyquinpropyl-1-S / cyclodextrin, hydroxypropyl-17-cyclodextrin, 2, Examples include 3,6-dimethyl-cyclodextrin, poly (1 / 3-cyclodextrin), and are used in the range of 0.1 to 10%.
- a compound which forms a complex with magnesium is preferably used, and ethylenediaminetetraacetic acid (EDTA), N, N, N'.N'.N “', ⁇ "'-hexaacetic acid (TTHA), trans-1,2-cyclohexanediamine N, N, N'. ⁇ ' Monotetraacetic acid (CyDTA) monohydrate and the like are used, and are used in the range of 0.05 to 2%.
- EDTA ethylenediaminetetraacetic acid
- TTHA ⁇ "'-hexaacetic acid
- CyDTA Monotetraacetic acid
- chromogens as substrates for cholesterol oxidase, which detects hydrogen peroxide, include 4-aminoantipyrine and phenol, 4-chlorophenol, m-clevl, 3-hydroxy-2, 4,6—In addition to the combination with phenols such as tolodobenzoic acid (HT IB), it is also known as a mirinantipyrine and a Trinder reagent.
- MCDP 10- (N-methylcarbamoyl) —3,7-bis (dimethylamino) phenothiazine
- MCDP 10- (N-methylcarbamoyl) —3,7-bis (dimethylamino) phenothiazine
- BCMA bis [3-bis (4-chlorophenyl) methyl-4-dimethylaminophenyl] amine
- JP-A-62-296 a dye source described in JP-A-62-296
- concentration of the dye source is preferably from 0.01 to 10 mg / ml, and is limited by the solubility.
- a phosphate buffer or the like, or a buffer of Tris or Good, or the like is suitably used, and its concentration is preferably 5 to 50 OmM.
- the pH is preferably in the range of 5-9.
- a chemically modified cholesterol esterase is preferable, and as the cholesterol oxidase or cholesterol oxidoreductase having low reactivity with LDL, a chemically modified cholesterol esterase is used. Unmodified cholesterol oxidase or chemically modified or unmodified cholesterol oxidoreductase is used together.
- the modifying agent include the above-mentioned Sunbright VFM411 (manufactured by NOF Corporation).
- the unit used for the c enzyme is preferably 0.5 to 100 uZm1.
- the dye source and the buffer As the dye source and the buffer, the dye source and the buffer described in Example 1 are similarly used.
- NAD (P) H is measured by an absorbance at 300 to 500 nm, preferably 330 to 400 nm, for example, at 330 nm (diaphorase. It is also possible to colorimetrically determine the color of formazan dye by adding a tetrazolium salt to the color of the formazan dye. The amount of LDL cholesterol is calculated by comparing it with the absorbance measured separately using a standard solution containing a known concentration of LDL cholesterol under the same conditions.
- Reagents that inhibit LDL only include cholesterol ester hydrolase that inhibits only LDL, and reagents that enable LDL cholesterol to react include cholesterol ester hydrolase that enables LDL cholesterol to react. , A surfactant, a chelating agent and the like.
- surfactants and chelating agents As surfactants and chelating agents, the surfactants and chelating agents described in Example 1 are likewise used.
- Examples of the enzyme include the enzymes described in Example 1.
- Cholesterol ester hydrolase that inhibits only LDL includes cholesterol ester hydrolyzate prepared by adding a chemical modifier at a molar ratio of 10 times or more to cholesterol ester hydrolase derived from animals, plants or microorganisms.
- cholesterol esterases derived from animals, plants or microorganisms Preferred are those having the same specificity as above, or those having the same specificity by modifying and expressing these genes. Specific examples include those obtained by adding a 10-fold or more molar ratio of the chemical modifier described in Example 1 to an aqueous solution of cholesterol esterase derived from microorganisms such as Pseudomonas or Chromobacterium and reacting the same.
- the molar ratio is preferably 10 to 500 times, and is determined in view of the effect that specificity appears and the decrease in activity due to modification.
- a cholesterol ester hydrolase that is not chemically modified for example, a part of the gene sequence of lipase derived from Brevipacterium is randomly changed and introduced into another, for example, Escherichia coli for expression.
- a cholesterol esterase which has an enzymatic activity and inhibits only the LDL can be used.
- Cholesterol ester hydrolase is preferably used at 0.1 to 100 uZm1.
- heparin, lintungstic acid, dextran sulfate, sulfated cyclodextrin, sulfated oligosaccharide or a salt thereof, as long as LDL is not aggregated in step (1), or Polyethylene glycol can be added in combination with a divalent metal salt such as a magnesium salt, a calcium salt, a manganese salt, a nigel salt, and a cobalt salt.
- a divalent metal salt such as a magnesium salt, a calcium salt, a manganese salt, a nigel salt, and a cobalt salt.
- cyclodextrin, oligosaccharide and salt include the cyclodextrin, oligosaccharide and salt described in Example 1.
- cholesterol esterase capable of reacting LDL cholesterol As the cholesterol esterase capable of reacting LDL cholesterol, unmodified cholesterol esterase is preferable, and it is preferable to use 0.5 to 100 u / m1.
- cholesterol oxidase or cholesterol oxidoreductase is it preferable to use cholesterol oxidase derived from microorganisms that oxidize cholesterol to generate hydrogen peroxide, or cholesterol dehydrogenase derived from animals or microorganisms.
- the above enzyme may be chemically modified with a group mainly composed of polyethylene glycol or a water-soluble oligosaccharide residue.
- the molar ratio of the chemical modifier in this case is preferably 0.1 to 500 times, and is determined in view of the stabilizing effect and the decrease in activity due to the modification.
- Cholesterol oxidase and cholesterol oxidoreductase are used at 0.1 to 100 uZm1. Preferably.
- the enzyme is dissolved in a buffer solution such as a buffer solution having a pH of 8 or more, and at 0 to 50 ° C, for example, a predetermined-fold molar amount of sunbrite is added, and the mixture is stirred for 1 to 24 hours.c
- the reaction solution is used as it is or after removing low molecular weight substances by an ultrafiltration membrane as needed.
- the above-mentioned phenolic compounds and aniline compounds are similarly used, and as a pigment source and a buffering agent.
- the dye sources and buffers mentioned above are likewise used.
- each system of the present invention includes a system for measuring ordinary cholesterol, surfactants or cholic acids often used for activating cholesterol oxidase can also be used.
- Various salts for solubilizing proteins such as globulin can also be used.
- Nonionic, anionic or cationic surfactants are used in the range of 0 to 1% as the surfactant, and cholic acids such as cholic acid, dequincholic acid, taurocholic acid, and chenodeoxycholic acid are used.
- the salts include sodium chloride, sodium sulfate, potassium chloride, potassium sulfate, magnesium chloride, magnesium sulfate, magnesium acetate, magnesium nitrate, lithium chloride, lithium sulfate, ammonium chloride, Ammonia sulfate, calcium chloride, calcium nitrate, calcium acetate, nickel chloride, nickel nitrate, nickel acetate, cobalt chloride, cobalt nitrate, etc. are used in the range of 0 to 10 OmM.
- FIG. 1 shows the correlation between the dilution ratio of serum containing LDL cholesterol 28.4 mg Zd1 and the absorbance measured by the method of Example 1.
- Figure 2 shows the time course of the absorbance measured by the Hitachi 720 automatic analyzer using the method of Example 9 using HDL, LDL, VLDL and human serum separated by ultracentrifugation. .
- Fig. 3 shows the dilution ratio of serum containing LDL cholesterol 28.4 mg / d1. 6 shows a correlation between the measured values and the absorbance measured by the method of Example 11. FIG. Next, examples will be described.
- the following operations were carried out using, as specimens, each of which was diluted with 5, 5, and 6, respectively.
- FIG. 1 shows the results obtained using the serum containing LDL cholesterol 28.4 mg / d1.
- Example 1 (2) the aggregating agent and divalent metal salt used for reagent A were variously modified as follows, and serum samples were collected using a Hitachi 770 (Sample 41, Reagent A, 270 ⁇ 1, Reagent 8, 90 ⁇ 1, Reagent 901) were measured.
- Hitachi RPL42T mouth using the method (ultracentrifugation) described in the History of Medicine, Vol. 94 (No. 8), p. 359, p. LDL cholesterol was quantified.
- Table 1 in all cases, values that were in good agreement with the values obtained by ultracentrifugation were obtained.
- Example 5 Using the reagent A described in Example 1 (2), replacing the peroxidase with the reagent B at a concentration of 300 u / m1 in the reagent B, and using the reagent C with a concentration of 300 u / m1. Using uZm1, the serum sample used in Example 2 was measured in the same manner as in Example 2. As a result, 18.6 mg mg d 1 was obtained, which was in good agreement with the value obtained by the superconcentration method.
- Example 5 Using the reagent A described in Example 1 (2), replacing the peroxidase with the reagent B at a concentration of 300 u / m1 in the reagent B, and using the reagent C with a concentration of 300 u / m1. Using uZm1, the serum sample used in Example 2 was measured in the same manner as in Example 2. As a result, 18.6 mg mg d 1 was obtained, which was in good agreement with the value obtained by the superconcentration method.
- Example 5
- Example 2 Using reagents A and C described in Example 1 (2), instead of EMS E in reagent B, TOOS (measurement wavelength 5555 nm), DAOS (measurement wavelength 593 nm), MAOS (measurement The serum sample used in Example 2 was measured in the same manner as in Example 2 using the same concentration of the wavelength of 63 O nm) or TOPS (measurement wavelength of 550 nm). As a result, the values obtained by ultracentrifugation were 177.9 mg / d 1, 177.8 mg / d 1, 179.2 mg / dl, 178.8 mg Zd 1, respectively. Well matched values were obtained.
- MC DP measurement wavelength 666 nm
- BCMA measurement wavelength 755 nm
- the serum sample used at a concentration of 1 mg / m 1 and used in Example 2 was measured in the same manner as in Example 2. As a result, 17.3 mg / d 1.179. OmgZd 1 and a value which was in good agreement with the value obtained by ultracentrifugation were obtained, respectively.
- dimethyl S-cyclodextrin was used at a concentration of 2 Omg / ml in place of unmodified cholesterol esterase in reagent C.
- the serum sample used in 2 was measured in the same manner as in Example 2. As a result, 177.4 mg / d 1 was obtained, which was in good agreement with the value obtained by ultracentrifugation.
- Reagent A and reagent B described in Example 1 (2) were mixed at a ratio of 3: 1 to obtain Reagent D.
- 3 ml of this solution was added to the serum sample 201 used in Example 2, and 37 After incubation for 5 minutes, the absorbance at 5.55 nm (E 1) was measured. Further, 0.75 ml of reagent C was added, and the mixture was incubated at 37 ° C for 5 minutes, and then the absorbance (E 2) at a wavelength of 555.5 nm was measured.
- the LDL cholesterol concentration was calculated by performing the same operation using a standard solution having a cholesterol concentration of 200 mg Zd1 and comparing the (E2-E1) X dilution factor. did.
- the serum sample used in Example 2 was measured using a Hitachi 72500 automatic analyzer. After addition of reagent B, the change in absorbance (E 3) was measured for 3.5 to 5 minutes.
- the LDL cholesterol concentration was calculated by performing the same operation using a standard solution having a cholesterol concentration of 200 mg / d1 (E4), and comparing the values of E3 and E4. As a result, 18.6 mg Zd 1 was obtained, which was in good agreement with the value obtained by ultracentrifugation.
- Fig. 2 shows the time course of HDL, LDL, VLDL and human serum separated by ultracentrifugation.
- Serum samples used in Example 2 were measured using the above reagents and a Hitachi 72500 automatic analyzer (E5).
- the LDL cholesterol concentration was calculated by performing the same operation using a standard solution having a cholesterol concentration of 20 Omg / d1 (E6), and comparing the values of E5 and E6. As a result, a value that was in good agreement with the value obtained by ultracentrifugation with 17 7. SmgZdl was obtained.
- the photometric point of the automatic analyzer was set at 5 minutes after the addition of reagent B.
- the following operations were carried out using only the samples diluted in 6/10, the same as in Example 4, the samples diluted in 10 in 10 and the same, the samples diluted in 10 in 210, and the physiological saline alone.
- Serum used in Example 11 (2) using reagent B described in Example 11 (2) and adding reagent A to the following various combinations of aggregating agents and divalent metal salts.
- Specimens were measured using a Hitachi 7700 automatic analyzer (conditions for sample 4 and reagent A, 270 and reagent B, 901, respectively).
- Hitachi RPL42T rotor LDL cholesterol is quantified according to the method (ultracentrifugation) described in Hyundai Medical, Vol. 23 (No. 1), pp. 113, 1991. did.
- Table 2 in each case, a value which was in good agreement with the value obtained by the ultracentrifugation method was obtained.
- Example 11 Using reagent B described in (2) and replacing the PEG-modified cholesterol esterase and PEG-modified cholesterol oxidase in reagent A with the chemically modified enzyme obtained above, The serum sample used in 2) was measured in the same manner as in Example 11 (2). As a result, 22 8. Omg / d 1 and 2 29.1 mg / d 1. 22.68 m d 1 were obtained, which were in good agreement with the values obtained by ultracentrifugation.
- Example 14 Example 11 11) In the reagent A described in (2), a force codase was used in place of peroxidase at a concentration of 300 u / m1, and 300 uZml of peroxidase and azide were used in reagent B.
- the serum specimen used in Example 11 (2) was measured in the same manner as in Example 11 (2), using sodium 0.5 mg Zm1. As a result, 228.6 mg / d 1 was obtained, which was in good agreement with the value obtained by ultracentrifugation.
- Example 11 Using reagent B described in 1 (2), replace TOMS (measuring wavelength 5555 nm), DAOS (measuring wavelength 5933 nm), MA0S (measuring wavelength).
- the serum sample used in Example 11 (2) was measured in the same manner as in Example 11 (2), using the same concentration as the sample (630 nm) or TOPS (measurement wavelength: 550 nm). .
- the results were 227.9 mg / d 1, 227.4 mg / d 225.2 mg / d and 224.8 mg d 1, respectively, which were in good agreement with the values obtained by ultracentrifugation. The values were obtained.
- Example 11 The EMSE was removed from reagent A described in (2), and MCDP (measurement wavelength 666 nm) was replaced by reagent B in place of 4-aminoantipyrine. (Wavelength 755 nm) was used at a concentration of 0.1 mgZm1, and the serum sample used in Example 11 (2) was measured in the same manner as in Example 11 (2). As a result, 228.3 mg / d 22.9 OmgZdl and a value which was in good agreement with the value obtained by ultracentrifugation were obtained, respectively.
- Example 11 Using reagent A described in 1 (2), reagent B contains polyquineethylene monolaurate 5 mg Zm 1 and triton X—100, 5 mg 1, sodium dodecylbenzenesulfonate 1 mg
- the serum sample used in Example 11 (2) was measured in the same manner as in Example 11 (2). The reaction was completed within 3 minutes, resulting in 228.6 mg / d U 226.1 mg / d 2 27.Omg / d 1, which was in good agreement with the value obtained by ultracentrifugation. was gotten.
- Example 18 Example 18
- Example 11 Using unmodified cholesterol in reagent B using reagent A described in (2) In place of the roll esterase, polyoxyethylene monolaurate 5 mg / ml, Triton X—100, 5 mg / m 1 or sodium dodecylbenzenesulfonate 1 mg nom 1 was used. )) was measured in the same manner as in Example 11 (2). The reaction was completed within 3 minutes, resulting in 227.9 mg / d 1, 229.2 mg / dl, and 226.lmgZdl, respectively, which were in good agreement with the values obtained by ultracentrifugation. .
- Example 11 (2) Using the reagent B described in Example 11 (2), and using the same concentration of dequincholic acid or taurocholic acid instead of cholic acid in reagent A, the serum sample used in Example 11 (2) was used. The measurement was performed in the same manner as in Example 11 (2). As a result, 229.9 mgZdl and 225.7 mg / d1 were obtained, which were in good agreement with the values obtained by ultracentrifugation.
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Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU49553/96A AU702443C (en) | 1995-03-16 | 1996-03-15 | Method for determinaton of cholesterol in low-density lipoprotein |
| US08/737,504 US5807696A (en) | 1995-03-16 | 1996-03-15 | Method for determination of cholesterol in low-density lipoprotein |
| EP96906036A EP0763741A4 (en) | 1995-03-16 | 1996-03-15 | METHOD FOR THE QUANTITATIVE DETERMINATION OF CHOLESTERIN IN LOW-DENSITY-LIPOPROTEIN |
| CA002190282A CA2190282C (en) | 1995-03-16 | 1996-03-15 | Method for determination of cholesterol in low-density lipoprotein |
| KR1019960706421A KR100276749B1 (ko) | 1995-03-16 | 1996-03-15 | 저밀도리포단백증의콜레스테롤의정량법 |
| JP52748196A JP3256241B2 (ja) | 1995-03-16 | 1996-03-15 | 低密度リポ蛋白中のコレステロールの定量法 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7/57307 | 1995-03-16 | ||
| JP5730795 | 1995-03-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1996028734A1 true WO1996028734A1 (en) | 1996-09-19 |
Family
ID=13051913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP1996/000664 Ceased WO1996028734A1 (en) | 1995-03-16 | 1996-03-15 | Method of quantitating cholesterol in low-density lipoprotein |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US5807696A (ja) |
| EP (2) | EP0763741A4 (ja) |
| JP (1) | JP3256241B2 (ja) |
| CN (1) | CN1085840C (ja) |
| AU (1) | AU702443C (ja) |
| CA (1) | CA2190282C (ja) |
| TW (1) | TW480338B (ja) |
| WO (1) | WO1996028734A1 (ja) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5814472A (en) * | 1997-05-13 | 1998-09-29 | Wako Pure Chemical Industries, Ltd. | Measurement of LDL-cholesterol |
| JP3058602B2 (ja) | 1996-04-15 | 2000-07-04 | デンカ生研株式会社 | 低密度リポ蛋白中のコレステロールの定量方法 |
| US6194164B1 (en) | 1997-04-14 | 2001-02-27 | Denka Seiken Co., Ltd. | Method for quantitating cholesterol present in low density lipoproteins |
| JP2001286297A (ja) * | 1999-06-21 | 2001-10-16 | Dai Ichi Pure Chem Co Ltd | コレステロール定量用試料の前処理方法およびこれを利用する特定のリポ蛋白中のコレステロール定量法 |
| WO2006085654A1 (ja) * | 2005-02-14 | 2006-08-17 | Kyowa Medex Co., Ltd. | レムナント様リポ蛋白(rlp)中のコレステロールの定量方法、試薬およびキット |
| WO2007052646A1 (ja) * | 2005-10-31 | 2007-05-10 | Kyowa Medex Co., Ltd. | 低密度リポ蛋白中トリグリセリドの測定方法及び測定用キット |
| WO2008143159A1 (ja) * | 2007-05-18 | 2008-11-27 | Kyowa Medex Co., Ltd. | 低密度リポ蛋白中のコレステロールの測定方法及び測定用キット |
| US7682831B2 (en) | 2002-11-27 | 2010-03-23 | Sekisui Medical Co., Ltd. | Method of measuring lipid in specific lipoprotein |
| JP2010172346A (ja) * | 1999-06-21 | 2010-08-12 | Sekisui Medical Co Ltd | コレステロール定量用試料の前処理方法およびこれを利用する特定のリポ蛋白中のコレステロール定量法 |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0764848A4 (en) * | 1995-03-20 | 2001-04-11 | Kyowa Medex Co Ltd | METHOD FOR QUANTIFYING CHOLESTEROL IN LOW DENSITY OR VERY LOW DENSITY LIPOPROTEIN |
| JP3193634B2 (ja) * | 1996-05-29 | 2001-07-30 | 第一化学薬品株式会社 | Ldlコレステロールの定量方法 |
| WO1998056719A2 (en) * | 1997-06-13 | 1998-12-17 | Medical Analysis Inc. | Control standards for clinical chemistry assays |
| EP1114870B1 (en) * | 1998-09-18 | 2004-10-06 | Kyowa Medex Co., Ltd. | Methods for fractional quantification of cholesterol in lipoproteins and quantification reagents |
| JP3441993B2 (ja) | 1999-01-27 | 2003-09-02 | 松下電器産業株式会社 | コレステロールセンサ |
| WO2000078998A1 (en) * | 1999-06-18 | 2000-12-28 | Polymer Technology Systems, Inc. | Apparatus and method for determining substances contained in a body fluid |
| JP4456715B2 (ja) * | 2000-02-28 | 2010-04-28 | 協和メデックス株式会社 | レムナント様リポ蛋白中のコレステロールの測定方法および測定試薬 |
| US7087397B2 (en) * | 2001-12-21 | 2006-08-08 | Polymer Technology Systems, Inc, | Method for determining HDL concentration from whole blood or plasma |
| ATE384135T1 (de) * | 2002-01-30 | 2008-02-15 | Denka Seiken Kk | Verfahren zur quantifizierung von cholesterin in hd-(high density)-lipoprotein und reagenszusammensetzungen |
| GB0204232D0 (en) * | 2002-02-22 | 2002-04-10 | Isis Innovation | Assay |
| US20050186652A1 (en) * | 2002-02-22 | 2005-08-25 | Wong Luet L. | Electrochemical detection |
| JPWO2004055204A1 (ja) | 2002-12-13 | 2006-04-20 | デンカ生研株式会社 | 低密度リポ蛋白中コレステロールのマルチ定量法 |
| US7491542B2 (en) * | 2004-07-12 | 2009-02-17 | Kim Scheuringer | Test device for determining the concentration of LDL-cholesterol in a sample |
| CN101078729B (zh) * | 2006-05-10 | 2012-07-18 | 富士胶片株式会社 | 高密度脂蛋白胆固醇的测定方法 |
| KR102211991B1 (ko) | 2011-11-11 | 2021-02-05 | 엑시스-시일드 에이에스 | 혈액 샘플 분석 방법 |
| US20200199645A1 (en) * | 2017-09-08 | 2020-06-25 | Control Of Innate Immunity Technology Research Association | Device and method for diagnosis of alzheimer's symptoms |
| JP7134667B2 (ja) * | 2018-03-28 | 2022-09-12 | デンカ株式会社 | リポ蛋白コレステロールの定量方法、定量試薬及び定量キット |
| JP7671134B2 (ja) * | 2019-12-12 | 2025-05-01 | 旭化成ファーマ株式会社 | 2,5-ジヒドロキシベンゼンスルホン酸又はその塩の阻害剤、及び2,5-ジヒドロキシベンゼンスルホン酸又はその塩による測定への影響を抑制する測定用試薬組成物 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58165800A (ja) * | 1982-03-08 | 1983-09-30 | ベ−リンガ−・マンハイム・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | 血清のldl−フラクシヨンのコレステリンの特異的測定法及び測定試薬 |
| JPH03262967A (ja) * | 1990-03-13 | 1991-11-22 | Fuji Photo Film Co Ltd | 高比重リポ蛋白コレステロールの定量方法 |
| JPH06502911A (ja) * | 1990-07-16 | 1994-03-31 | コレステク コーポレイション | 固相沈澱アッセイ装置および方法 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4275151A (en) * | 1977-02-03 | 1981-06-23 | Eastman Kodak Company | Hydrolysis of protein-bound cholesterol esters |
| FR2513766B1 (fr) * | 1981-09-28 | 1985-09-13 | Biomerieux Sa | Procedes et reactifs de separation selective des lipoproteines de faible densite ldl et de quantification de leurs composants |
| DE3338836A1 (de) * | 1983-10-26 | 1985-05-09 | Boehringer Mannheim Gmbh | Verfahren zur bestimmung der low density lipoproteine (ldl) und reagenz zu seiner durchfuehrung |
| DE3636851A1 (de) * | 1986-10-29 | 1988-05-11 | Boehringer Mannheim Gmbh | Verfahren und reagenz zur spezifischen bestimmung des cholesterins der hdl-fraktion |
| US5286626A (en) * | 1991-12-13 | 1994-02-15 | Actimed Laboratories, Inc. | Process and apparatus for direct determination of low density lipoprotein |
| JP2600065B2 (ja) * | 1994-03-08 | 1997-04-16 | 協和メデックス株式会社 | 高密度リポ蛋白中のコレステロールの定量法 |
| JP3107492B2 (ja) * | 1994-04-05 | 2000-11-06 | 国際試薬株式会社 | リポ蛋白分画中の成分の定量方法 |
-
1996
- 1996-03-15 CA CA002190282A patent/CA2190282C/en not_active Expired - Fee Related
- 1996-03-15 EP EP96906036A patent/EP0763741A4/en not_active Withdrawn
- 1996-03-15 AU AU49553/96A patent/AU702443C/en not_active Ceased
- 1996-03-15 EP EP06001455A patent/EP1650569A3/en not_active Withdrawn
- 1996-03-15 US US08/737,504 patent/US5807696A/en not_active Expired - Lifetime
- 1996-03-15 JP JP52748196A patent/JP3256241B2/ja not_active Expired - Fee Related
- 1996-03-15 WO PCT/JP1996/000664 patent/WO1996028734A1/ja not_active Ceased
- 1996-03-15 CN CN96190186.1A patent/CN1085840C/zh not_active Expired - Fee Related
- 1996-09-18 TW TW085111384A patent/TW480338B/zh not_active IP Right Cessation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58165800A (ja) * | 1982-03-08 | 1983-09-30 | ベ−リンガ−・マンハイム・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | 血清のldl−フラクシヨンのコレステリンの特異的測定法及び測定試薬 |
| JPH03262967A (ja) * | 1990-03-13 | 1991-11-22 | Fuji Photo Film Co Ltd | 高比重リポ蛋白コレステロールの定量方法 |
| JPH06502911A (ja) * | 1990-07-16 | 1994-03-31 | コレステク コーポレイション | 固相沈澱アッセイ装置および方法 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP0763741A4 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3058602B2 (ja) | 1996-04-15 | 2000-07-04 | デンカ生研株式会社 | 低密度リポ蛋白中のコレステロールの定量方法 |
| US6194164B1 (en) | 1997-04-14 | 2001-02-27 | Denka Seiken Co., Ltd. | Method for quantitating cholesterol present in low density lipoproteins |
| US5814472A (en) * | 1997-05-13 | 1998-09-29 | Wako Pure Chemical Industries, Ltd. | Measurement of LDL-cholesterol |
| JP2001286297A (ja) * | 1999-06-21 | 2001-10-16 | Dai Ichi Pure Chem Co Ltd | コレステロール定量用試料の前処理方法およびこれを利用する特定のリポ蛋白中のコレステロール定量法 |
| JP2010172346A (ja) * | 1999-06-21 | 2010-08-12 | Sekisui Medical Co Ltd | コレステロール定量用試料の前処理方法およびこれを利用する特定のリポ蛋白中のコレステロール定量法 |
| US7682831B2 (en) | 2002-11-27 | 2010-03-23 | Sekisui Medical Co., Ltd. | Method of measuring lipid in specific lipoprotein |
| WO2006085654A1 (ja) * | 2005-02-14 | 2006-08-17 | Kyowa Medex Co., Ltd. | レムナント様リポ蛋白(rlp)中のコレステロールの定量方法、試薬およびキット |
| WO2007052646A1 (ja) * | 2005-10-31 | 2007-05-10 | Kyowa Medex Co., Ltd. | 低密度リポ蛋白中トリグリセリドの測定方法及び測定用キット |
| US9360432B2 (en) | 2005-10-31 | 2016-06-07 | Kyowa Medex Co., Ltd. | Method for measuring triglyceride in low-density lipoprotein |
| WO2008143159A1 (ja) * | 2007-05-18 | 2008-11-27 | Kyowa Medex Co., Ltd. | 低密度リポ蛋白中のコレステロールの測定方法及び測定用キット |
| JP5534809B2 (ja) * | 2007-05-18 | 2014-07-02 | 協和メデックス株式会社 | 低密度リポ蛋白中のコレステロールの測定方法及び測定用キット |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1650569A3 (en) | 2006-05-17 |
| EP0763741A4 (en) | 2003-02-12 |
| US5807696A (en) | 1998-09-15 |
| EP1650569A2 (en) | 2006-04-26 |
| CA2190282A1 (en) | 1996-09-19 |
| CA2190282C (en) | 2004-09-28 |
| CN1085840C (zh) | 2002-05-29 |
| AU702443C (en) | 2003-02-20 |
| TW480338B (en) | 2002-03-21 |
| AU702443B2 (en) | 1999-02-18 |
| CN1148430A (zh) | 1997-04-23 |
| MX9605627A (es) | 1998-07-31 |
| AU4955396A (en) | 1996-10-02 |
| EP0763741A1 (en) | 1997-03-19 |
| JP3256241B2 (ja) | 2002-02-12 |
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