نتایج جستجو برای: gastrointestinal mucosa
تعداد نتایج: 140375 فیلتر نتایج به سال:
We studied the distribution of pancreatic secretory trypsin inhibitor (PSTI) in the epithelia of the gastrointestinal tract and determined whether PSTI is secreted into gastric juice. PSTI was measured by a specific radioimmunoassay in biopsy specimens taken from the upper (n = 8) and lower (n = 7) gastrointestinal tract of patients with normal endoscopies. PSTI was present in the stomach, smal...
Meckel’s diverticulum is a common pathology in children and rare adults. We present case of 79-year-old patient which significant gastrointestinal bleeding, whose paraclinical explorations confirmed fatty tumor the terminal ileum. The exploratory coelioscopy revealed Meckel complicated intestinal invagination, resected at same time with resection extracorporeal anastomosis by mini coelio-guided...
Organ culture developed about 50 years ago, mainly for the study of morphogenesis in embryological tissue. Fell and co-workers in Cambridge studied many embryological events in vitro (Fell, 1940), and organ culture came to be defined as that type of culture where complete rudiments or fragments of organs were cultivated with a minimum of outgrowth and enlarged as a whole (Fell, 1953; Parker, 19...
Background and purpose: The expression of growth factors, proteolytic enzymes, fibrogenic factors, and cytokines are altered in Helicobacter pylori (H. pylori) infected gastric mucosa. Matrix metalloproteinases (MMP) are a family of zinc-dependent homologous enzymes digesting most of the components of the extracellular matrix and basement membrane and are involved in remodeling and functioning o...
BACKGROUND AND AIMS Trefoil factor family (TFF) peptides and the chromosome 11p15.5 mucin glycoproteins are expressed and secreted in a site specific fashion along the length of the gastrointestinal tract. Evidence for coexpression of mucins and trefoil peptides has been suggested in numerous gastrointestinal mucosal pathologies. The ulcer associated cell lineage (UACL) occurs at sites of chron...
Clostridial overgrowth and associated release of their toxins is responsible for the pathogenesis acute hemorrhagic diarrhea syndrome. Diagnosis based on exclusion other causes diarrhea, because only invasive tests, such as small intestinal biopsies identifying clostridial colonization surface a necrotic mucosa, support diagnosis. These are not usually performed in unstable, hypovolemic patient...
Esophagitis in cats and dogs is a consequence of increased exposure the esophageal mucosa to gastroduodenal reflux. Causes can include anesthesia-related reflux, frequent vomiting, or lodged foreign bodies. An exception eosinophilic esophagitis, an emerging primary inflammatory disease esophagus with presumed allergic etiology. Reflux esophagitis owing lower sphincter incompetence often suspect...
Gastrointestinal mucositis is a serious and dose-limiting toxic side effect of oncologic treatment. Interruption cancer treatment due to gastrointestinal leads significant decrease in cure rates consequently the deterioration patient’s quality life. Natural polysaccharides show variety beneficial effects, including gastroprotective effect. Treatment with soluble dietary fiber (SDF) from yellow ...
Gastrointestinal injury usually starts in the superficial mucosa. We investigated whether leukocyte-endothelial interactions were greater in the gastrointestinal mucosa than the submucosa and muscularis in control tissue and after upregulation of adhesion molecules with endotoxin and after chemical insult with nonsteroidal anti-inflammatory drugs. Inactin-anesthetized rats were given either end...
In cattle, the lymphoid rich regions of the rectal-anal mucosa at the terminal rectum are the preferred site for Escherichia coli O157:H7 colonisation. All cattle infected by rectal swab administration demonstrate long-term E. coli O157:H7 colonisation, whereas orally challenged cattle do not demonstrate long-term E. coli O157:H7 colonisation in all animals. Oral, but not rectal challenge of sh...
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