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Toxoplasma gondii causes death and plastic alteration in the jejunal myenteric plexus

World Journal of gastroenterology 2015年第16期21卷 4829-4839页

作者： Eduardo Joséde Almeida Araújo Larissa Marchi Zaniolo Suellen Laís Vicentino marcelo biondaro góis Jacqueline Nelisis Zanoni Aristeu Vieira da Silva Débora de Mello goncales Sant'Ana Departamento de Histologia Centro de Ciencias BiológicasUniversidade Estadual de Londrina Programa de Pós-graduacao em Ciencia Animal Universidade Paranaense Departamento de Ciencias Morfológicas.Universidade Estadual de Maringa Departamento de Biologia Universidade Estadual de Feira de Santana

AIM:To assess the effects of ME-49 Toxoplasma gondii(***) strain infection on the myenteric plexus and external muscle of the jejunum in ***:Thirty rats were distributed into two groups:the control group(Cg)(n = 15) received 1 m L of saline solution orally, and the infected group(Ig)(n=15)inoculated with 1 m L of saline solution containing500 oocysts of M-49 *** strain *** 36 d of infection,the rats were *** with *** was confirmed by blood samples collected from all rats at the beginning and end of the *** jejunum of five animals was removed and submitted to routine histological processing(paraffin)for analysis of external muscle *** remaining jejunum from the others animals was used to analyze the general population and the NADH-diaphorase,VIPergic and nitrergic subpopulations of myenteric neurons;and the enteric glial cells(S100-IR).RESULTS:Serological analysis showed that animals from the Ig were infected with the *** affecting jejunal muscle thickness was observed in the Ig rats(77.02±42.71)in relation to the Cg(51.40±12.34),Pg:39839.3±5362.3;Ig:26766.6±2177.6;Pgic myenteric neurons was observed(Cg:7959.0±1290.4;Ig:10893.0±1156.3;Pgeneral hypertrophy of the cell body in the remaining myenteric neurons was noted[Cg:232.5(187.2-286.0);Ig:248.2(204.4-293.0);Pg VIP neurotransmitter was seen(Cg:0.46±0.10;Ig:0.80±0.16;Pglia cells(Cg:12.64±1.27;Ig:10.09±2.10;P<0.05)was observed in the infected ***:It was concluded that infection with oocysts of ME-49 *** strain caused quantitative and plastic alterations in the myenteric plexus of the jejunum in rats.

关键词： Enteric nervous system Infectious diseases glial cells Nitric oxide Neuronal plasticity Smallintestine Toxoplasmosis Vasoactive intestinal peptide

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