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三种聚合酶链反应检测方法在检测美国皮肤利什曼病患者生物样本中利什曼原虫 DNA 中的比较。

Comparison among three polymerase chain reaction assays on detection of DNA from Leishmania in biological samples from patients with American cutaneous leishmaniasis.

机构信息

Laboratório de Biologia Molecular de Microorganismos, Universidade Federal de Alfenas, Alfenas, MG.

出版信息

Rev Soc Bras Med Trop. 2012 Mar-Apr;45(2):257-9. doi: 10.1590/s0037-86822012000200023.

DOI:10.1590/s0037-86822012000200023
PMID:22535003
Abstract

INTRODUCTION

The study analyzed positivity of polymerase chain reaction (PCR) on detection of DNA from Leishmania in patients' samples.

METHODS

Extracted DNA was submitted to L150/L152, 13Y/13Z, and seminested PCR (snPCR).

RESULTS

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.

CONCLUSIONS

Preliminary results showed that these assays, mainly L150/L152 and snPCR, can detect Leishmania DNA and carry potential on laboratory diagnosis of leishmaniasis.

摘要

简介

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。

方法

提取的 DNA 进行 L150/L152、13Y/13Z 和半巢式 PCR(snPCR)检测。

结果

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)。

结论

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。

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