巴西东北部皮肤利什曼病和内脏利什曼病流行地区白蛉体内利什曼原虫的分子检测

Molecular detection of Leishmania in phlebotomine sand flies in a cutaneous and visceral leishmaniasis endemic area in northeastern Brazil.

作者信息

Guimarães Vanessa Cristina Fitipaldi Veloso, Costa Pietra Lemos, Silva Fernando José da, Melo Fábio Lopes de, Dantas-Torres Filipe, Rodrigues Eduardo Henrique Gomes, Brandão Filho Sinval Pinto

机构信息

Department of Immunology, Centro de Pesquisas Aggeu Magalhães, Fundação Oswaldo Cruz, Recife, Pernambuco, Brazil.

Department of Parasitology, Centro de Pesquisas Aggeu Magalhães, Fundação Oswaldo Cruz, Recife, Pernambuco, Brazil.

出版信息

Rev Inst Med Trop Sao Paulo. 2014 Jul-Aug;56(4):357-60. doi: 10.1590/s0036-46652014000400015.

Abstract

Several phlebotomine sand fly species have been regarded as putative or proven vectors of parasites of the genus Leishmania in Brazil, but data for the northeastern region remains incipient. In this study, a total of 600 phlebotomine sand flies were grouped in pools of 10 specimens each and tested by a Leishmania genus-specific PCR and by a PCR targeting Leishmania (Leishmania) infantum. Fourteen out of 60 pools were positive by the genus-specific PCR, being five pools of L. migonei, seven of L. complexa, one of L. sordellii and one of L. naftalekatzi, which correspond to a minimal infection rate of 2.3% (14/600). Our results, associated with their known anthropophily and their abundance, suggest the participation of L. migonei and L. complexa as vectors of Leishmania in northeastern Brazil. Remarkably, this is the first time in this country that the detection of Leishmania DNA in L. sordellii and L. naftalekatzi has been reported, but future studies are necessary to better understand the significance of these findings.

摘要

在巴西,几种白蛉被认为是利什曼原虫属寄生虫的假定或已证实的传播媒介,但该国东北地区的数据仍然很少。在本研究中,总共600只白蛉被分成每组10只的样本池,通过利什曼原虫属特异性PCR和靶向婴儿利什曼原虫(利什曼原虫)的PCR进行检测。60个样本池中,有14个通过属特异性PCR呈阳性,其中5个样本池的米氏白蛉、7个复杂白蛉、1个索氏白蛉和1个纳氏白蛉呈阳性,这对应于最低感染率为2.3%(14/600)。我们的结果,连同它们已知的嗜人性和丰富度,表明米氏白蛉和复杂白蛉在巴西东北部作为利什曼原虫的传播媒介发挥作用。值得注意的是,这是该国首次报道在索氏白蛉和纳氏白蛉中检测到利什曼原虫DNA,但需要进一步的研究来更好地理解这些发现的意义。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c34a/4131824/4608a8cf2dea/0036-4665-rimtsp-56-04-357-gf01.jpg

相似文献

文献AI研究员

20分钟写一篇综述,助力文献阅读效率提升50倍

立即体验

用中文搜PubMed

大模型驱动的PubMed中文搜索引擎

马上搜索