Chemical luminescence immune analysis quantitative measuring reagent kit for IV type collagen and preparation method thereof

A collagen and chemiluminescent technology, applied in the field of immunoanalysis medicine, can solve the problems of expensive instruments, radioactive contamination, narrow linear range, etc., and achieve the effects of ensuring sensitivity, easy operation and production, and improving sensitivity

Inactive Publication Date: 2009-02-18
CHEMCLIN DIAGNOSTICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Radioimmunoassay has problems such as complex operation, unstable measurement results, short storage time of reagents, radioactive contamination, and expensive instruments; while enzyme-linked immunoassay has disadvantages such as low sensitivity and narrow linear range

Method used

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  • Chemical luminescence immune analysis quantitative measuring reagent kit for IV type collagen and preparation method thereof
  • Chemical luminescence immune analysis quantitative measuring reagent kit for IV type collagen and preparation method thereof
  • Chemical luminescence immune analysis quantitative measuring reagent kit for IV type collagen and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Example 1 Preparation of Type IV Collagen Quantitative Assay Kit of the present invention

[0040] 1. Preparation of enzyme-labeled antibody and biotin-conjugated antibody

[0041] 1. Preparation of horseradish peroxidase-labeled type IV collagen antibody

[0042] Dissolve 4.4mg HRP in 1mL distilled water, add 0.4mL sodium periodate (50mmol / L) and stir at room temperature for 20min, dialyze through 1mmol / L sodium acetate buffer solution, pH value is 4.4, add 8mg type IV collagen monoclonal antibody, stir for 2h , and finally reduced with 200mmol / L NaBH4, dialyzed through 0.02MPB buffer solution, added an equal volume of glycerol, and stored below -20°C.

[0043] 2. Preparation of biotin-conjugated type IV collagen antibody

[0044] (1) Dissolve biotin (BNHS) in N, N-dimethylformamide (DMF) by conventional methods to make 1 mg / mL;

[0045] (2) Use 0.1mol / L NaHCO with a pH value of 9.0 3 Dilute the purified type IV collagen antibody to 1-2 mg / mL;

[0046] (3) Mix acc...

Embodiment 2~3

[0101] Embodiment 2~3 preparation IV collagen quantitative assay kit of the present invention

[0102] Except for using plastic beads and plastic tubes as carriers, the rest were prepared in the same manner as in Example 1 to prepare a type IV collagen chemiluminescence immunoassay assay kit.

Embodiment 4

[0103] Example 4 Preparation of Type IV Collagen Quantitative Assay Kit of the present invention

[0104] Except for using magnetic particles as the coating carrier, using the glutaraldehyde method to couple with avidin, the other methods were the same as in Example 1 to prepare a type IV collagen chemiluminescence immunoassay assay kit.

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Abstract

The invention relates to the immunological analysis medical field, and in particularly provides a chemiluminescence immunoassay quantitative analysis test kit and the preparing method thereof for type IV collagen protein correlated to liver fibrosis degree. The test kit comprises: 1) type IV collagen protein calibrating article; 2) solid-phase carrier coated by avidin; 3) antibody enzyme-labeled compound of the type IV collagen protein; 4) biotinylated type IV collagen protein antibody; 5) chemiluminescence zymolyte liquid; and 6) condensed washing liquid. Furthermore, the method of preparing the test kit comprises the following steps: 1) the calibrating article is prepared by using pure type IV collagen protein; 2) the solid-phase carrier is coated by the avidin; 3) the antibody of the type IV collagen protein is labeled by enzyme; 4) the antibody of the type IV collagen protein is biotinylated; 5) the chemiluminescence zymolyte liquid is prepared; 6) the condensed washing liquid is prepared; 7) the calibrating article, the labeled compound, the chemiluminescence zymolyte liquid and the washing liquid are filled and packed through separate packing; and 8) the finished product is assembled. The test kit has the advantages of simplicity, swiftness, sensitivity, stability and the like.

Description

technical field [0001] The invention relates to the field of immunoanalysis medicine, in particular, the invention provides an early detection index IV collagen chemiluminescence immunoassay quantitative assay kit for liver fibrosis and a preparation method thereof. Background technique [0002] The liver is the largest digestive gland in the human digestive system and an important organ of metabolism. Hepatic fibrosis refers to the excessive deposition of fibrous connective tissue in the liver, which is the result of unbalanced fibrosis and fibrolysis. Hepatic fatty changes, cholestasis, and inflammation caused by various reasons can stimulate local hepatic fibrosis to a certain degree. The fat storage cells and resting fibroblasts proliferate and form collagen fibers, and the increased fibrous tissue forms fine cords and thin intervals, which causes liver fibrosis and leads to a syndrome of impaired liver function. Hepatic fibrosis is the early stage of liver cirrhosis. E...

Claims

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Application Information

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IPC IPC(8): G01N33/68G01N21/76G01N33/577G01N33/543
Inventor 车景辉应希堂宋胜利唐宝军于尚永
Owner CHEMCLIN DIAGNOSTICS CO LTD
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