摘要
采用聚合酶链反应(PCR),分别对20例骨结核患者标本用两种方法(PCR法及结核杆菌培养法)检查的阳性率分别为:培养法20%,PCR65%,经统计学处理二种方法有显著性差别(P<0.01),PCR阳性率显著高于培养法,而且2天即可报告,显著缩短了报告时间。30例非骨结核患者标本两种方法均为阴性。盲法结核杆菌和对照菌PCR结果表明具有较高的持异性。只要标本中有结核杆菌DNA即可扩增其特异的DNA片断,即使经福尔马林固定2~4周的标本也可检测,并不影响结果,这对于骨结核的进一步鉴别诊断都具有一定的意义。PCR具有快速、特异、灵敏等优点,是在基因水平上诊断骨结核的一种新技术,是对各种骨结核病诊断和鉴别诊断的一种实用而可靠的检测手段。
AbstractBoth PCR protocol and standard culture techniquewere used to detect DNA sequence of mycobacteriumtuberculosis in samples obtained from 20 patients withbone tuberculosis. The positive rate was65%in PCRprotocol and 20%in standard culture technique. Amarked difference was seen statisticallv(P<0. 01)and not a single case in a group of 30 patients withoutbone tuberculosis showed positive resuit with tha twomethods. The resultilmplied that, PCR is of a highspeciflcity.The detection of mycobacteriumtuberculosis DNA sequence using PCR is,specific,sensitive, and relable approach for rapid diagnosis ofbone tuberculosis.
出处
《中华骨科杂志》
CAS
CSCD
北大核心
1995年第7期429-430,共2页
Chinese Journal of Orthopaedics