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)

A survey was carried out in order to ascertain the reliable conditions for the recovery of E. coli K12 after acquisition of extrachromosomial resistance from polyresistant strains of Salmonella bredeney, responsible for a hospital outbreak of gastroenteritis. In particular in this study the length of mating, the amounts of partners in the cross-cultures, the availability of different media for selection of recipient E. coli, were controlled. It was possible to conclude that the incubation of cross-cultures during 18 hours at 37 degrees C was suitable for a greater transfer, whereas the amount of donor and recipient cells in the starting cultures was of little importance. Attempts to use synthetic media for the selective recovery of E. coli which had been made drug-resistant were not successful; instead some of lactosate media which are classically employed for the diagnosis of enterobacteria (Endo agar, Mac Conkey agar, Desoxycholate Lactose agar, Brilliant Green Bile agar, Eosin Methylene Blue agar, Violet Red Bile agar, Wurtz agar) gave satisfactory results. Among these media the two last were the best because they provided good differentiation between the prevalent Salmonella colonies and the few lactose-fermenting colonies, even in the crowded growth areas of the plates.
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PMID:[Control of the technic for recovery of E coli K12 after acquisition of R factors. Tests with various culture substrates under different mating conditions]. 35 87

Plesiomonas shigelloides, a member of the family Vibrionaceae, is a Gram negative rod associated with several gastroenteritis outbreaks, especially in tropical and subtropical countries. In same way, it has been related to some septicemia, meningitis and cholecystitis cases. The microorganism is normally found in water, fish and birds. The aim of this work was to study the incidence of Plesiomonas shigelloides in tetrahybrids of Oreochromis sp. (Pink Tilapia) located at the central region of Venezuela. Once the samples were homogenized, the techniques of enrichment and direct streaking were used simultaneously for the isolation of the microorganism. A high incidence of P. shigelloides was determined (73%), being higher in the intestinal tract (60%), followed by the skin (36.7%) and the gills (26.67%), without any correlation among them. In the fish pond, the microorganism isolation frequency was 41.67%. The direct streaking technique presented the highest isolation values in the different Tilapia tissues (60%) and in the water as well (41.60%). No significant differences were observed on the effectivity of the selective agars used for the isolation of P. shigelloides (Plesiomonas Agar and Inositol-Brilliant Green-Bile Salts Agar). A positive correlation was observed between the microorganism incidence and the pluviosity levels. A high incidence of E. coli was observed in the samples of Tilapia tissues and the water pond. No correlation was observed between incidence of P. shigelloides and E. coli. Due to the high prevalence of P. shigelloides found in the present study, it is important to assure a proper evisceration, washing and storage at temperatures lower than 8 degrees C, and a proper product cooking to diminish the customeris risk.
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PMID:[Incidence of Plesiomonas shigelloides in tilapia tetrahibrids (Oreochromis sp.)]. 1041 9