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[Genetic markers of pathogenicity of conditionally pathogenic enterobacteria isolated from children with diarrheal diseases]. 2007

N Iu Zherebtsova, and A Kh Baĭmiev, and D A Valishin, and A R Mavziutov

In the process of examination of 89 children from different age groups with diarrheal disease caused by bacteria from Enterobacteriaceae family 89 microorganisms were isolated including Klebsiella spp. (37 isolates), Citrobacter spp. (9 isolates), Enterobacter spp. (17 isolates), Hafnia alvei (1 isolate), Morganella morganii (11 isolates), Proteus spp. (14 isolates). Presence of genes associated with pathogenicity islands (PAIS): hlyA, hlyB (hemolysin), sfaG (fimbria antigen type S), cnf1 (cytotoxic necrotizing factor 1), estB (heat-stable enterotoxin B)were studied in these cultures by PCR. It was found that 32.6% of examined isolates had fragments of PAIS's genes--hlyA was detected in 9 cases (10.1%), hlyB--in 10 cases (11.2%), sfaG --in 8 cases (9%), cnf1--in 9 cases (10.1%), and estB--in 3 cases (3.4%). Positive correlation between genetic determinants hlyB and cnf1 as well as hlyA and sfaG was found while estB was not associated with other genes. Weak positive correlation between presence of sfaG and resistance to tetracycline and chloramphenicol was detected. Factors coded by revealed determinants of PAIS can play a role in the development of diarrheal syndrome.

UI MeSH Term Description Entries
D002352 Carrier Proteins Proteins that bind or transport specific substances in the blood, within the cell, or across cell membranes. Binding Proteins,Carrier Protein,Transport Protein,Transport Proteins,Binding Protein,Protein, Carrier,Proteins, Carrier
D002648 Child A person 6 to 12 years of age. An individual 2 to 5 years old is CHILD, PRESCHOOL. Children
D002701 Chloramphenicol An antibiotic first isolated from cultures of Streptomyces venequelae in 1947 but now produced synthetically. It has a relatively simple structure and was the first broad-spectrum antibiotic to be discovered. It acts by interfering with bacterial protein synthesis and is mainly bacteriostatic. (From Martindale, The Extra Pharmacopoeia, 29th ed, p106) Cloranfenicol,Kloramfenikol,Levomycetin,Amphenicol,Amphenicols,Chlornitromycin,Chlorocid,Chloromycetin,Detreomycin,Ophthochlor,Syntomycin
D003603 Cytotoxins Substances that are toxic to cells; they may be involved in immunity or may be contained in venoms. These are distinguished from CYTOSTATIC AGENTS in degree of effect. Some of them are used as CYTOTOXIC ANTIBIOTICS. The mechanism of action of many of these are as ALKYLATING AGENTS or MITOSIS MODULATORS. Cytolysins,Cytotoxic Agent,Cytotoxic Agents,Cytotoxin,Agent, Cytotoxic
D003967 Diarrhea An increased liquidity or decreased consistency of FECES, such as running stool. Fecal consistency is related to the ratio of water-holding capacity of insoluble solids to total water, rather than the amount of water present. Diarrhea is not hyperdefecation or increased fecal weight. Diarrheas
D004751 Enteritis Inflammation of any segment of the SMALL INTESTINE. Enteritides
D004755 Enterobacteriaceae A family of gram-negative, facultatively anaerobic, rod-shaped bacteria that do not form endospores. Its organisms are distributed worldwide with some being saprophytes and others being plant and animal parasites. Many species are of considerable economic importance due to their pathogenic effects on agriculture and livestock. Coliform Bacilli,Enterobacteria,Ewingella,Leclercia,Paracolobactrum,Sodalis
D004756 Enterobacteriaceae Infections Infections with bacteria of the family ENTEROBACTERIACEAE. Enterobacterial Infections,Cronobacter Infections,Infections, Enterobacteriaceae,Infections, Enterobacterial,Cronobacter Infection,Enterobacteriaceae Infection,Enterobacterial Infection,Infection, Cronobacter,Infection, Enterobacteriaceae,Infection, Enterobacterial,Infections, Cronobacter
D005798 Genes, Bacterial The functional hereditary units of BACTERIA. Bacterial Gene,Bacterial Genes,Gene, Bacterial
D005819 Genetic Markers A phenotypically recognizable genetic trait which can be used to identify a genetic locus, a linkage group, or a recombination event. Chromosome Markers,DNA Markers,Markers, DNA,Markers, Genetic,Genetic Marker,Marker, Genetic,Chromosome Marker,DNA Marker,Marker, Chromosome,Marker, DNA,Markers, Chromosome

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