Clarification of the natural host defense system against indigenous bacteria in alimentary tract

点击翻译按钮获取中文摘要

The research achievements on the natural host defense against indigenous bacteria (IB) in animals is as follows: the clarification of the relationship between IB settlement and membranous Toll-like receptor (mTLRs)/secretory TLRs (sTLRs) in small and large intestines, the clarification of the relationship between the alternation of IB settlement and the bactericidal substance secretion in small intestine, the clarification of the peculiar epithelial differentiation in the follicle-associated intestinal crypts of gut-associated lymphatic tissue, the clarification of the detailed host defense with epithelial apoptosis against IB hyperproliferation in esophagus and epidermis, the demonstration of the direct transportation of chylomicrons from the intestinal epithelium into the hepatic portal blood and the endothelial receptor for chylomicron transportation, the clarification of the recognition system with mTLRs and secretion of sTLRs against IB in the respiratory tract.