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METHOD FOR TREATMENT OF WHOLE BLOOD FOR ISOLATING TUBERCULOSIS MYCOBACTERIUM DNA BY POLYMERASE CHAIN REACTION
METHOD FOR TREATMENT OF WHOLE BLOOD FOR ISOLATING TUBERCULOSIS MYCOBACTERIUM DNA BY POLYMERASE CHAIN REACTION
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机译:聚合酶链反应处理全血分离结核分枝杆菌DNA的方法
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摘要
FIELD: medicine, biochemistry.;SUBSTANCE: invention relates to a method for preparing blood sample for isolating Mycobacterium tuberculosis DNA by using polymerase chain reaction. Method involves lysis of erythrocytes and washing out a precipitate from hemoglobin followed by using the washed out precipitate for isolation of DNA and its assay by method of polymerase chain reaction. For lysis of erythrocytes the solution NaOH/NaCl is used as early but in the ration allowing to avoid formation of clots and blood coagulation, namely, blood : 2% NaOH/0.125% NaCl = 5:1. Hemoglobin from a precipitate is removed with a buffer 10 mM tris-HCl and 1 mM EDTA (pH 7.6) with 1% of Triton. The advantage of invention involves accelerating the sample preparing and reducing blood sample amount from a patient without reducing sensitivity in carrying out the polymerase chain reaction.;EFFECT: improved treatment method.
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机译:技术领域本发明涉及一种利用聚合酶链反应制备用于分离结核分枝杆菌DNA的血液样品的方法。方法包括裂解红细胞并从血红蛋白中洗出沉淀物,然后使用洗出的沉淀物分离DNA,并通过聚合酶链反应法对其进行测定。对于红细胞的溶解,应尽早使用NaOH / NaCl溶液,但应以一定比例使用,以免形成血块和血液凝结,即血液:2%NaOH / 0.125%NaCl = 5:1。用含有1%Triton的10 mM tris-HCl和1 mM EDTA(pH 7.6)缓冲液除去沉淀物中的血红蛋白。本发明的优点涉及加速样品制备并减少患者的血液样品量,而不会降低进行聚合酶链反应的敏感性。效果:改进的治疗方法。
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