<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Van Immerseel, Filip</style></author><author><style face="normal" font="default" size="100%">De Buck, Jeroen</style></author><author><style face="normal" font="default" size="100%">De Smet, Isabel</style></author><author><style face="normal" font="default" size="100%">Jan Mast</style></author><author><style face="normal" font="default" size="100%">Haesebrouck, Freddy</style></author><author><style face="normal" font="default" size="100%">Ducatelle, Richard</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Dynamics of immune cell infiltration in the caecal lamina propria of chickens after neonatal infection with a Salmonella enteritidis strain.</style></title><secondary-title><style face="normal" font="default" size="100%">Dev Comp Immunol</style></secondary-title><alt-title><style face="normal" font="default" size="100%">Dev. Comp. Immunol.</style></alt-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Animals</style></keyword><keyword><style  face="normal" font="default" size="100%">Animals, Newborn</style></keyword><keyword><style  face="normal" font="default" size="100%">B-Lymphocytes</style></keyword><keyword><style  face="normal" font="default" size="100%">Cecum</style></keyword><keyword><style  face="normal" font="default" size="100%">Chickens</style></keyword><keyword><style  face="normal" font="default" size="100%">Granulocytes</style></keyword><keyword><style  face="normal" font="default" size="100%">Immunoglobulin A</style></keyword><keyword><style  face="normal" font="default" size="100%">Leukocytes</style></keyword><keyword><style  face="normal" font="default" size="100%">Liver</style></keyword><keyword><style  face="normal" font="default" size="100%">Macrophages</style></keyword><keyword><style  face="normal" font="default" size="100%">Poultry Diseases</style></keyword><keyword><style  face="normal" font="default" size="100%">Salmonella enteritidis</style></keyword><keyword><style  face="normal" font="default" size="100%">Salmonella Infections, Animal</style></keyword><keyword><style  face="normal" font="default" size="100%">Spleen</style></keyword><keyword><style  face="normal" font="default" size="100%">T-Lymphocytes</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2002</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2002 May</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">26</style></volume><pages><style face="normal" font="default" size="100%">355-64</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Dynamics of leucocyte infiltration and bacterial invasion in the caecal wall were studied after oral infection of 2-day-old chicks with Salmonella enterica ser. Enteritidis. Bacteria invaded the lamina propria of the caecal wall from 12h post-challenge onwards. Bacteriological examination of internal organs (liver, spleen) showed a peak in Salmonella bacteria at 3days post-infection, after which the number of bacteria decreased. Immunohistochemistry revealed macrophages and T-lymphocytes invading the caecal propria mucosae from 24h after challenge onwards, while B-lymphocytes came somewhat later, subsequently organising into follicular aggregates. An early increase in granulocytes was partly masked by the response to natural flora. While the B-lymphocyte and granulocyte populations were maintained, T-lymphocyte and macrophage populations were already reducing by 10days post-challenge. The infiltration of macrophages and T-lymphocytes in the caecal wall, followed by B-lymphocytes, is the result of an inflammatory response, caused by invading bacteria at this site. The structural maturation of the mucosa-associated lymphoid tissues is antigen driven, since B-cells organise in a follicular pattern.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">4</style></issue><custom1><style face="normal" font="default" size="100%">http://www.ncbi.nlm.nih.gov/pubmed/11888650?dopt=Abstract</style></custom1></record></records></xml>