Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0017160 (gastroenteritis)
 11,398 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

During July 6-August 2, 1990, at the outpatient clinic at Children's Hospital in Bangkok, Thailand, pediatricians recruited the first 5-7 children aged less than 5 with acute diarrhea to a study to determine the incidence, clinical presentation, and severity of human rotavirus (HRV) diarrhea during the monsoon season. The study also aimed to examine the reliability of the detection methods for HRV and the different HRV electropherotypes. 103 cases of gastroenteritis were compared with 44 controls. 17% of cases had a household diarrheal contact. 18% of cases excreted HRV, while none of the controls did. 69% of HRV cases were infants. Vomiting and moderate dehydration occurred significantly more often in HRV cases than non-HRV cases (84% vs. 57% and 47% vs. 12%, respectively; p 0.05). HRV cases were more likely to receive intravenous fluids than non-HRV cases (47% vs. 19%; p 0.01). The researchers used IDEIATM ELISA as the standard for comparison with other screening methods since it is highly reliable. Electron microscopy (EM) and polyacrylamide gel electrophoresis (PAGE) had the highest sensitivity and specificity levels (84 and 90 vs. 80 for latex particle agglutination [LPA] and 100 vs. 81 for LPA, respectively). PAGE found 94.7% of HRV positive samples were of subgroup II and 5.3% of subgroup I. Nine different HRV electropherotypes were identified. EM identified adenovirus in 11 cases. These findings suggest that IDEIATM ELISA and PAGE can be both diagnostically and epidemiologically useful for HRV infection in areas with limited access to expensive equipment.
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PMID:Rotavirus diarrhoea in Thai infants and children. 767 16

Based on the tenet of a common mucosal immune system, antigenic stimulation at one mucosal site results in the distribution of antigen-specific IgA precursor cells to distant mucosal sites. However, recent studies suggest that functional compartmentalization and limited reciprocity may exist within some components of the common mucosal immune system. Although oral immunization is often very effective in inducing immunity to respiratory pathogens, the converse (respiratory immunization to prevent enteric diseases) may not be as effective. To address this question and to study interactions between the bronchus-associated (BALT) and gut-associated (GALT) lymphoid tissues related to protective immunity, we used as a model two antigenically related porcine coronaviruses which replicate primarily in the intestine (transmissible gastroenteritis virus, TGEV) or respiratory tract (porcine respiratory coronavirus, PRCV). The tissue distribution and magnitude of the antibody secreting cell (ASC) responses (measured by ELISPOT) and cell-mediated immune responses (measured by lymphoproliferative assays, LPA) coincided with the viral tissue tropisms. Immunization via GALT (gut infection with TGEV) elicited high numbers of IgA ASC and high LPA responses in GALT (gut lamina propria, LP or mesenteric lymph nodes, MLN), but lower responses in BALT (bronchial lymph nodes, BLN) and induced complete protection against enteric TGEV challenge. In contrast immunization via BALT (respiratory infection with PRCV) elicited systemic type responses (high numbers of IgG ASC in the BLN), but few ASC and low LPA responses in the gut LP or MLN and induced only partial protection against enteric TGEV challenge. Thus administration of vaccines intranasally may not be optimally effective for inducing intestinal immunity in contrast to the reported efficacy of oral vaccines for inducing respiratory immunity.
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PMID:Mucosal immunity: an overview and studies of enteric and respiratory coronavirus infections in a swine model of enteric disease. 898 61