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Titolo:
Production of heat-labile enterotoxin by strains of Aeromonas veronii by veronii
Autore:
Singh, DV;
Indirizzi:
Banaras Hindu Univ, Inst Med Sci, Dept Microbiol, Varanasi 221005, Uttar Pradesh, India Banaras Hindu Univ Varanasi Uttar Pradesh India 221005 tar Pradesh, India
Titolo Testata:
JOURNAL OF HEALTH POPULATION AND NUTRITION
fascicolo: 1, volume: 18, anno: 2000,
pagine: 44 - 48
SICI:
1606-0997(200006)18:1<44:POHEBS>2.0.ZU;2-H
Fonte:
ISI
Lingua:
ENG
Soggetto:
PLESIOMONAS-SHIGELLOIDES; DIARRHEAL PATIENTS; HYDROPHILA; ENTEROPATHOGENICITY; DISEASE; JANDAEI; TOXIN;
Keywords:
Aeromonas veronii; diarrhoea; disease models, animal; enterotoxins;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
32
Recensione:
Indirizzi per estratti:
Indirizzo: Singh, DV Rajiv Gandhi Ctr Biotechnol, Thiruvananthapuram 695014, Kerala, India Rajiv Gandhi Ctr Biotechnol Thiruvananthapuram Kerala India 695014
Citazione:
D.V. Singh, "Production of heat-labile enterotoxin by strains of Aeromonas veronii by veronii", J HEALTH PO, 18(1), 2000, pp. 44-48

Abstract

Three isolates of Aeromonas veronii by veronii (2 environmental, one bloodinfection) were examined to see if they produce any enterotoxin and, if so, to determine its characteristics. Two isolates caused fluid accumulation in the initial rabbit ileal loop tests. The other strain did so after a single passage through the rabbit ileal loop. All the isolates showed gradual enhancement of fluid secretion after each subsequent passage. Inocula of 1x10(4) viable cells and 0.25 mL of culture filtrate caused fluid accumulation comparable to those of toxigenic Vibrio cholerae 569B, The enterotoxic activity was inactivated at higher temperature, and showed biological activity over a wide range of pH, The only histopathological change observed was depletion of mucous from goblet cells. The findings of the study indicate that strains of A. veronii by veronii produce a heat-labile, pH-stable diarrhoeagenic factor without causing any damage to the intestinal mucosa.

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Documento generato il 29/03/20 alle ore 16:37:03