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Molecular identification of several clinically important bacteria including enterobacteria by partial 16S ribosomal RNA gene sequence comparison = Molekularna identifikacija klinično pomembnih bakterij, vključno enterobakterij s primerjavo delnega nukleotidnega zaporedja gena za 16S ribosomsko RNKŠimenc, Janez, 1973- ; Golle, Andrej ; Potočnik, Uroš, 1969-Za učinkovito diagnostiko bakterijskih okužb in zdravljenje je potrebna hitra in natančna identifikacija bakterije. Običajen postopek je fenotipska identifikacija, ki je pogosto zahtevna in ... nenatančna za atipične izolate. V naši študiji smo predpostavili, da je možno identificirati bakterije s primerjavo delnih nukleotidnih zaporedij genov, ki kodirajo 16S ribosomsko RNKs primerjavo z nukleotidnimi zaporedji v javno dostopnih podatkovnih bazah za zaporedja DNK: EMBL, GenBank, DDBJ in RDP-II. Še posebej nas je zanimala možnost identifikacije enterobakterij, saj mnogi avtorji navajajo, da te skupine bakterij ni moč ločiti na osnovi zaporedij genov 16S ribosomske RNK. Za izvedbo študije smo pridobili 15 tipskih sevov in dva klinična izolata iz zbirke Zavoda za zdravstveno varstvo Maribor, katerih rutinska fenotipska identifikacija je težavna. Iz bakterij smo izolirali DNK ter z verižno reakcijo s polimerazo (PCR) pomnožili variabilen odsek gena za 16S ribosomsko RNK. Pridelke PCR smo očistili in poslali na sekveniranje s prednjim začetnim oligonukleotidom v podjetje Macrogen, Koreja (www.macrogen.com). Pridobljena nukleotidna zaporedja DNK smo nato z dvema iskalnima algoritmoma; BLAST, v bazah GeneBank/EMBL/DDBJ, ter z algoritmom Sequence match v bazi RDP-II primerjali z vloženimi nukleotidnimi zaporedji, za morebitno identifikacijo vrste. Specifično smo uspeli identificirati vrste: Staphylococcus epidermidis,Bacteroides fragilis, Clostridium perfringens, Peptostreptococcus anaerobius, Eggerthella lenta, Enterobacter cloacae, Yersinia enterocolitica, Proteus mirabilis, Streptococcus pyogenes, Enterococcus faecalis. Medtem ko Escherichia coli, Serratia marcescens, Shigella flexneri, Klebsiella pneumoniae, Citrobacter freundii nismo uspeli nedvoumno identificirati, čeprav je klinično nujno. Vendar menimo, da je opisan genotipski pristop za identifikacijo vrste bakterije učinkovito dopolnilo fenotipski identifikaciji, še posebno pri identifikaciji atipičnih izolatov.Source: Zdravniški vestnik : glasilo Slovenskega zdravniškega društva = Slovenian medical journal = journal of Slovenian Medical Association. - ISSN 1318-0347 (Letn. 77, št. 9, 2008, str. 547-552)Type of material - article, component partPublish date - 2008Language - slovenianCOBISS.SI-ID - 12712726
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source: Zdravniški vestnik : glasilo Slovenskega zdravniškega društva = Slovenian medical journal = journal of Slovenian Medical Association. - ISSN 1318-0347 (Letn. 77, št. 9, 2008, str. 547-552)
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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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Šimenc, Janez, 1973- | 29750 |
Golle, Andrej | 27985 |
Potočnik, Uroš, 1969- | 16340 |
Source: Personal bibliographies
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