貝氏柯克斯體可視化等溫擴增法建立
[Abstract]:Objective to establish a rapid visualized loop-mediated isothermal amplification (LAMP) method for Coxella bassii. Methods the IS1111a gene of Coxella bassii was synthesized in vitro and the recombinant plasmid was constructed. Three sets of LAMP primers were designed with online primer design software. The best primers were screened by real-time turbidimetry. The concentration of hydroxynaphthol blue was optimized to establish a visual LAMP reaction system, and its sensitivity and specificity were evaluated. Results the established visual LAMP reaction could accurately detect the recombinant plasmid and the new bridge strain of Coxella bassii without cross reaction with other Rickettsiae strains, and the minimum was 3.6 脳 10 ~ 2 copies / reaction. The sensitivity of PCR (PCR) method is increased by one order of magnitude, which is equivalent to that of real-time turbidimetric method and real-time fluorescence quantitative PCR method. Conclusion the established visual LAMP method is sensitive and can be used to detect Coxella basicus infection in different places. It is simple and quick to operate and suitable for pathogen screening in primary health epidemic prevention and epidemic field.
【作者單位】: 南京軍區(qū)軍事醫(yī)學研究所疾病預防控制所;
【基金】:國家重大傳染病防治專項(2013ZX10004103;2013ZX10004218) 江蘇省科技支撐計劃(社會發(fā)展)項目(BE2013603) 軍隊重點項目(BWS14J025)
【分類號】:R440;R535
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