Laboratório de Biologia Molecular de Microorganismos, Universidade Federal de Alfenas, Alfenas, MG.
Rev Soc Bras Med Trop. 2012 Mar-Apr;45(2):257-9. doi: 10.1590/s0037-86822012000200023.
The study analyzed positivity of polymerase chain reaction (PCR) on detection of DNA from Leishmania in patients' samples.
Extracted DNA was submitted to L150/L152, 13Y/13Z, and seminested PCR (snPCR).
Results were evidenced by bands of approximately 120, 720, and 670 bp for L150/L152, 13Y/13Z, and snPCR, respectively. L150/L152, 13Y/13Z, and snPCR positivity indexes were 76.9, 56.4, and 9.2 (p>0.05), respectively, for suspected and 93.7, 68.7, and 84.4 (p<0.05), respectively, for confirmed.
Preliminary results showed that these assays, mainly L150/L152 and snPCR, can detect Leishmania DNA and carry potential on laboratory diagnosis of leishmaniasis.
本研究分析了聚合酶链反应(PCR)检测患者样本中利什曼原虫 DNA 的阳性率。
提取的 DNA 进行 L150/L152、13Y/13Z 和半巢式 PCR(snPCR)检测。
L150/L152、13Y/13Z 和 snPCR 分别产生约 120、720 和 670 bp 的条带,证明结果为阳性。疑似病例中 L150/L152、13Y/13Z 和 snPCR 的阳性指数分别为 76.9、56.4 和 9.2(p>0.05),确诊病例中分别为 93.7、68.7 和 84.4(p<0.05)。
初步结果表明,这些检测方法,主要是 L150/L152 和 snPCR,能够检测利什曼原虫 DNA,具有利什曼病实验室诊断的潜力。