Comunian Luíza B, Moura Sílvia B, Paglia Adriano P, Nicoli Jacques R, Guerra Juliana B, Rocha Gifone A, Queiroz Dulciene M M
Department of Microbiology, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, Belo Horizonte, MG, CEP 31.270-901, Brazil.
Curr Microbiol. 2006 Nov;53(5):370-3. doi: 10.1007/s00284-005-0426-y. Epub 2006 Oct 3.
Since we have limited knowledge about the occurrence of Helicobacter in wild animals, we searched for Helicobacter species in the gastrointestinal tract of 75 rodents captured in forest remnants of Minas Gerais, Brazil. Fragments from the antrum and corpus of the stomach and from the colon were taken for PCR assays for Helicobacter detection. Although gastric mucosa was Helicobacter-positive in only one animal, the bacterium was detected in the colonic mucosa of 23 rodents (30.7%). Helicobacter detection was more frequent in the colon of terraced rice rat (56%) and house rat (30%) in contrast to punare and Spix's yellow-toothed cavy, in which the presence of the bacterium was not detected. Helicobacter rodentium, H. marmotae, H. cinaedi, and other species closely related to the murine helicobacters were presumptively identified by DNA sequencing. Wild rodents may serve as a reservoir of these Helicobacter species in nature.
由于我们对野生动物中幽门螺杆菌的存在情况了解有限，我们在巴西米纳斯吉拉斯州森林遗迹捕获的75只啮齿动物的胃肠道中寻找幽门螺杆菌。从胃窦、胃体和结肠采集片段进行幽门螺杆菌检测的PCR分析。虽然仅在一只动物的胃黏膜中检测到幽门螺杆菌呈阳性，但在23只啮齿动物（30.7%）的结肠黏膜中检测到了该细菌。与普纳鼠和斯氏黄齿豚鼠相比，梯田稻鼠（56%）和家鼠（30%）的结肠中幽门螺杆菌检测更为频繁，在普纳鼠和斯氏黄齿豚鼠中未检测到该细菌的存在。通过DNA测序初步鉴定出啮齿类幽门螺杆菌、土拨鼠幽门螺杆菌、辛内氏幽门螺杆菌以及其他与鼠类幽门螺杆菌密切相关的物种。野生啮齿动物可能是自然界中这些幽门螺杆菌物种的储存宿主。
