نتایج جستجو برای: heat stable toxin
تعداد نتایج: 503829 فیلتر نتایج به سال:
Thirteen strains of Vibrio cholerae 01 belonging to the Inaba serotype El Tor biotype isolated from patients during an outbreak of cholera in the town of Warangal in southern India were found to be nontoxigenic (NT), since they did not produce cholera toxin or hybridize with DNA probes specific for cholera toxin, Zot, or Ace. The unheated and heated culture supernatants of the NT V. cholerae 01...
The heat-stable toxin I gene in the human Escherichia coli isolate 18D is the estA1 allele. The gene is not part of a composite transposon, but inspection of the flanking DNA sequences suggests that it was at one time part of a transposon. The hypothetical transposon originated from an event other than the occurrence that formed Tn1681.
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Diarrhoeal diseases due to enterotoxigenic Escherichia coli continue to be a cause of global concern. Medicinal plants have been gaining popularity as promising antidiarrhoeal agents. In the present study, four antidiarrhoeal plants, viz. Aegle marmelos, Cyperus rotundus, Psidium guajava and Zingiber officinale were screened against a heat-stable toxin-producing enterotoxigenic E. coli strain. ...
elaboration of different toxins by enterotoxigenic e. coli has been considered as one of the main virulence factors contributing to the manifestation of disease caused by these microorganisms. various strategies have been employed to raise antibodies against these toxins as a line of defense. in this study, the 3’ terminus of the gene that codes for the binding subunit of the heat-labile entero...
125I-labelled heat-labile toxin (from Escherichia coli) and 125I-labelled cholera toxin bound to immobilized ganglioside GM1 and Balb/c 3T3 cell membranes with identical specificities, i.e. each toxin inhibited binding of the other. Binding of both toxins to Balb/c 3T3 cell membranes was saturable, with 50% of maximal binding occurring at 0.3 nM for cholera toxin and 1.1 nM for heat-labile toxi...
since the heat-stable enterotoxin (st) produced by yersinia enterocolitica is similar to enterotoxin production by e. coli, it is probably classified among toxinogenic bacteria. the culture filtrate of st-producing strains of y. enterocolitica is able to activate guanylate cyclase and to increase fluid accumulation action of cylic guanosin 3', 5' - monophosphate (cgmp) in sucking mous...
Since the heat-stable enterotoxin (ST) produced by yersinia enterocolitica is similar to enterotoxin production by E. coli, it is probably classified among toxinogenic bacteria. The culture filtrate of ST-producing strains of Y. enterocolitica is able to activate Guanylate cyclase and to increase fluid accumulation action of cylic Guanosin 3', 5' - monophosphate (cGMP) in sucking mouse intestin...
Diagnosis of enterotoxigenic Escherichia coli diarrhea was made in 109 adult males with an acute dehydrating cholera-like syndrome in Dacca, Bangladesh, by testing 10 colonies isolated from admission stool specimens for production of heat-labile and heat-stable toxins. Toxin testing of one colony yielded a diagnosis in 92% of the cases, testing of two colonies yielded a diagnosis in 95% of the ...
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