多重?zé)晒舛縋CR測(cè)定瘧原蟲(chóng)方法建立
[Abstract]:Objective to establish a multiplex fluorescence quantitative PCR method for simultaneous detection of four species of Plasmodium malaria. Methods the fragments of four species of Plasmodium were amplified by PCR, and the standard plasmids were cloned and constructed for gradient dilution. In this system, four clinical samples of malaria parasite, single adenovirus and mycoplasma pneumoniae positive blood samples were detected by adding five-primer probe according to the concentration, and the human genome was detected specifically. The positive blood samples of Plasmodium falciparum and Plasmodium vivax were mixed and detected. Each reaction is done in triplicate to verify repeatability. The minimum detection limit of the system was obtained by detecting the gradient concentration of the standard sample. Results four standard plasmids of Plasmodium malaria were constructed successfully. There were 15 falciparum malaria, 3 vivax malaria, 1 egg malaria and 15 falciparum malaria, 3 vivax malaria, 1 egg malaria. The results of human genome detection were negative for single adenovirus and mycoplasma pneumoniae positive blood samples. The mixed detection of Plasmodium falciparum and Plasmodium vivax showed 3 specific amplification curves. The coefficient of variation of the three complex pores was between 0.17 and 4.96. Plasmodium falciparum can detect 10~2copies/m L, Plasmodium vivax, Plasmodium triviparum, Plasmodium ovale can detect 10~3copies/m L. Conclusion five-fold fluorescence quantitative PCR can be used for rapid screening and typing identification of Plasmodium malaria, which has good specificity and reproducibility and high sensitivity.
【作者單位】: 麗水出入境檢驗(yàn)檢疫局;浙江省麗水市疾病預(yù)防控制中心檢驗(yàn)科;
【基金】:浙江出入境檢驗(yàn)檢疫局重點(diǎn)科研計(jì)劃項(xiàng)目計(jì)劃(2014-ZKZ-006)
【分類(lèi)號(hào)】:R531.3
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