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Odkrivanje nekaterih genov, povezanih z virulenco, pri sevih E. coli, ki povzročajo črevesne okužbe = Detection of some virulence related genes of diarrheagenic E. coli strainsTrkov, Marija ...Namen dela: Odkrivanje virulentnih dejavnikov E. coli omogoča boljše poznavanje bolezni, ki jo povzročajo. Zato smo preiskali določeno število sevov E. coli, osamljenih iz vzorcev iztrebkov bolnikov, ... na prisotnost nekaterih genov, povezanih z virulenco teh bakterij in ugotavljali sposobnost izdelave verocitotoksinov VT1 in VT2. Preiskovane seve so osamili v letu 2006 v ljubljanski in novogoriški regiji. Metode: Z metodo "multipli" PCR (mPCR) smo odkrivali naslednjih šest genov, povezanih z virulenco E. coli: ipaH, eltA, estA, eae, vtx1 in vtx2. Sposobnost izdelave verocitotoksinov VT1 in VT2smo ugotavljali z reverzno pasivno aglutinacijo lateksa. Rezultati: Pri šestih od 42 preiskovanih sevov E. coli smo našli vsaj en dejavnik, povezan z virulenco. Pri vseh smo ugotovili prisotnost gena za intimin (eae), pripadali pa so naslednjim serološkim skupinam: O26, O128, O145 in O157. Pri treh sevih,pri katerih smo ugotovili prisotnost gena za intimin, smo ugotovili tudiprisotnost genov za verotoksine (vtx1 ali vtx2). Dva med njimi sta pripadala serološki skupini O26, eden pa O157. En sev serološke skupine O26 jeizdeloval VT1, en sev O26 in en sev O157 pa sta izdelovala VT2. Pri drugih preiskovanih sevih nismo ugotovili sposobnosti izdelovanja omenjenih toksinov.Prisotnosti genov ipaH, eltA in estA nismo ugotovili pri nobenem preiskovanem sevu. Zaključek: S to raziskavo smo ugotovili, da v novogoriški in ljubljanski regiji kroži dokaj nizko število sevov E. coli, ki imajo gene za verocitotoksine oziroma so jih sposobni izdelovati. Za splošno oceno bi bilo potrebno nadaljevati s preiskovanjem večjega števila sevov z različnih področij Slovenije, raziskavo pa bi bilo smiselno razširiti na odkrivanje tudidrugih virulentnih dejavnikov.Source: Zdravstveno varstvo : Slovenian journal of public health. - ISSN 0351-0026 (Letn. 47, št. 2, 2008, str. 81-88)Type of material - article, component part ; adult, seriousPublish date - 2008Language - slovenianCOBISS.SI-ID - 2029541
source: Zdravstveno varstvo : Slovenian journal of public health. - ISSN 0351-0026 (Letn. 47, št. 2, 2008, str. 81-88)
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DRS, in which the journal is indexed
Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Trkov, Marija | 14762 |
Berce, Ingrid | 31474 |
Dovečar, Darja, 1963- | 25044 |
Grilc, Eva | 20529 |
Bujko, Marina, 1947- | 28023 |
Kraigher, Alenka, 1950- | 03194 |
Source: Personal bibliographies
and: SICRIS
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