Macro creatine kinase agarose electrophoresis kit and preparation method thereof

A technology of creatine kinase and agarose, which is applied in the field of medicine and biology, can solve the problems of detection, inability to purchase, and increase the cost, and achieves the effects of low cost, simple operation and avoiding false positives.

Inactive Publication Date: 2006-12-20
SECOND MILITARY MEDICAL UNIV OF THE PEOPLES LIBERATION ARMY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the above-mentioned full-automatic or semi-automatic electrophoresis instruments are expensive and cannot be purchased by general hospitals. In addition, the special matching kits cannot be used for testing small batches of specimens. The cost will be greatly increased, and it is often necessary to identify a suspicious specimen in clinical practice, so it is not suitable for identification.

Method used

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  • Macro creatine kinase agarose electrophoresis kit and preparation method thereof
  • Macro creatine kinase agarose electrophoresis kit and preparation method thereof
  • Macro creatine kinase agarose electrophoresis kit and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Embodiment 1 Preparation of giant creatinase kit of the present invention

[0041] The reagent that giant creatinase kit of the present invention comprises is as follows:

[0042] 1) PH7.4 Tris buffer solution: 20 mmol Tris, 14 grams of sucrose, 500 mg of sodium azide, add about 800 ml of distilled water, put the beaker in a water tank at 37°C, add dry L-aspartic acid powder directly into the beaker, and stir while adding Dissolve, roughly adjust the pH to about 7.4 with a pH test strip (approximately 5 grams of L-aspartic acid dry powder), and finally adjust the pH to 7.4 with a pH tester, add water to 1000ml and put it in the refrigerator for later use.

[0043] 2) 1% agarose gel: Weigh 1 gram of agarose, heat and dissolve it in 100ml of Tris buffer solution with pH 7.4, dispense 8ml / tubes and place in a refrigerator at 4°C for later use.

[0044] 3) Agarose gel plate: take out 8ml / tube of 1% agarose gel, heat and dissolve it in water, put a piece of 110mm×80mm trans...

Embodiment 2

[0049] Example 2 Sample detection of the giant creatinase kit of the present invention

[0050] The electrophoresis apparatus and the electrophoresis tank used in the present invention are sold on the market. The membrane strip for the sample injection hole adopted in the present invention is prepared as follows: a slightly hard plastic film is cut into a size of 150mm×20mm. After heating with a 2mm×5mm iron needle, one hole is scalded in the plastic film, and one plastic film can scald ten holes.

[0051] Specifically take the following steps:

[0052] 1) Take a piece of agarose gel plate, cover a 2cm wide filter paper strip 1.5cm away from the cathode side, absorb part of the water, remove the filter paper, place a sample hole membrane strip on it, and press the sample hole lightly Make the membrane close to the rubber plate to avoid air bubbles, then add 5-7μl sample into the hole, pay attention to make the hole evenly filled, let stand for 5-10 minutes, wait for the samp...

Embodiment 3

[0060] Embodiment 3 Clinical detection test

[0061] Using the giant creatine kinase agarose electrophoresis kit and immunosuppressive method of the present invention, the inventor identified 133 clinical samples, and the comparison of the results is shown in Table 1. Using the kit of the present invention, 20 specimens contained giant CK1, 107 specimens contained giant CK2 (including 71 cases of malignant tumors confirmed by pathology, 16 cases of liver cirrhosis, and 20 cases of other diseases) and 6 cases of specimens contained CK-BB . When detected by immunosuppressive method, these samples all have a common feature, that is, "CK-MB" in the serum accounts for more than 50% of the total CK activity, while the total CK activity is normal or slightly increased. Therefore, by adopting the kit of the present invention, the false positive phenomenon of CK-MB due to the interference of giant CK1, CK2 and CK-BB is avoided, resulting in misjudgment and clinical misdiagnosis. In t...

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Abstract

The invention discloses a huge creatine-kinase agarose electrophoresis agent box and making method in the medical biological domain, which comprises the following parts: agarose gel plate, Tris buffer, soluble bartitone-barbitone electrophoresis buffer, substrate, substrate buffer and color-developing agent. The invention can test serum sample to avoid false positive occurrence of CK-M B due to immune inhibiting method, which provides correct testing report for clinical.

Description

technical field [0001] The invention belongs to the field of medical biology and relates to a kit and a preparation method thereof. More particularly, the invention relates to a giant creatine kinase agarose electrophoresis kit which can be used for clinical disease detection and a preparation method thereof. Background technique [0002] Creatine kinase (CK) is a dimer composed of M and B subunits, and there are three isozymes in the cytoplasm: CK-MM, CK-MB and CK-BB. There is another isoenzyme in the mitochondria of cells, called CK-Mt (also known as giant CK). Giant CK is divided into giant CK1 and giant CK2. Giant CK1 is a complex of CK isoenzymes and autoantibodies. Because of its large molecular weight, it is not easily excreted in the body, and because of its long half-life, it persists in the blood for a long time. The literature believes that CK1 has no obvious connection with diseases, and some giant CK1 is even detected in healthy human blood. Giant CK2 is an o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/453G01N21/64C12Q1/50
Inventor 王爱华于嘉屏许绍辉
Owner SECOND MILITARY MEDICAL UNIV OF THE PEOPLES LIBERATION ARMY
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