›› 2011, Vol. 38 ›› Issue (1): 194-197.

• 疾病防治 • 上一篇    下一篇

猪附红细胞体巢式PCR诊断方法的建立及初步应用

郑秀红1,邢莹1,贾立军1,薛书江1,甄立家2,张守发1   

  1. (1.延边大学农学院动物医学系,吉林延吉 133002;2.吉林省东丰县大阳镇畜牧兽医站,吉林东丰 136309)
  • 收稿日期:2010-07-26 修回日期:1900-01-01 出版日期:2011-01-01 发布日期:2011-01-01
  • 通讯作者: 张守发

Establishment and Application of Nested PCR Assay for Detection of Eperythrozoon suis

HENG Xiu-hong1,XING Ying1,JIA Li-jun1,XUE Shu-jiang1,ZHEN Li-jia2,ZHANG Shou-fa1   

  1. (1. Department of Veterinary Medicine,College of Agriculture,Yanji University,Jilin 133002, China; 2. Dayang Prologue Station, Dongfeng County,Jilin Province,Dongfeng 136309, China)
  • Received:2010-07-26 Revised:1900-01-01 Online:2011-01-01 Published:2011-01-01
  • Contact: ZHANG Shou-fa

摘要:

为建立一种更加准确、敏感的猪附红细胞体检测方法,本试验根据猪附红细胞体特异的DNA序列(AJ504999)设计2对巢式PCR引物,建立了巢式PCR检测方法。筛选该检测方法的最佳反应条件,并进行了特异性、敏感性及临床样本检测试验。结果表明,建立的巢式PCR对猪附红细胞体基因组DNA能扩增出特异性片段,而对弓形虫、链球菌、牛瑟氏泰勒虫、牛附红细胞体基因组DNA扩增反应结果均为阴性;DNA最低检测量为0.124 fg/μL;通过对55份临床样本的检测,该巢式PCR较常规PCR的阳性检出率高23.7%。本试验为猪附红细胞体病的诊断提供了一种更为特异、敏感的检测技术。

关键词: 猪附红细胞体; 巢式PCR; 建立; 应用

Abstract: To establish a more exact and sensitive method to detect Eperythrozoon suis, two pairs of nested PCR primer were designed according to Eperythrozoon suis DNA sequence (AJ504999)and nested PCR assay was established. The optimum reaction conditions were screened, and sensitive, special and clinical samples tests were carried out. The results showed that Eperythrozoon suis genome DNA could be amplified by nested PCR,and Toxoplasma gondii, Streptococcus, Theileria sergenti and Eperythrozoon wenyonii genomic DNA could not. The minimum amount of DNA to detect was 0.124 fg/μL. After the detection of 55 clinical samples, results indicated that the positive detection rate of nested PCR was 23.7% higher than conventional PCR. This research offers a more exact and sensitive detection method and it is good value for application.

Key words: Eperythrozoon suis; nested PCR; establishment; application

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