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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2010-6-14
pubmed:abstractText
Corynebacterium pseudodiphtheriticum is commonly found in normal upper respiratory tract flora in humans. In certain conditions it can cause the opportunistic infections, especially in immunocompromised patients. In certain strains of Corynebacterium sp., the macrolide, lincosamide, and streptogramin B (MLSb) resistance mechanism related to the presence of the erm(X) gene was discovered; hence, the need appeared for further investigation to confirm the existence of this gene among C. pseudodiphtheriticum. About 58 strains of C. pseudodiphtheriticum were used in this study. All strains were isolated from the nasal mucous membrane of patients with upper respiratory tract infection symptoms. Among the tested strains 52 were erythromycin resistant, and only 6 were erythromycin sensitive. The tested strains showed a very high percentage (89.7%) of the phenotype MLSb-constitutive resistance mechanism. The MLSb-inducible resistance among the tested strains was not observed. Association of the MLSb mechanism with resistance to chloramphenicol, trimethoprim/sulfamethoxazole and chloramphenicol, and trimethoprim/sulfamethoxazole was observed in 12.1%, 15.5%, and 44.8% tested strains, respectively. Among all isolates with the phenotype MLSb resistance, the presence of the erm(X) gene was confirmed by the polymerase chain reaction method. The results suggest that C. pseudodiphtheriticum with the MLSb-constitutive-type resistance can play a significant role in crossing this mechanism with other Corynebacterium sp., which colonize the nasal and throat mucous membrane.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
1931-8448
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
16
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
119-22
pubmed:meshHeading
pubmed:year
2010
pubmed:articleTitle
Macrolide, lincosamide, and streptogramin B-constitutive-type resistance in Corynebacterium pseudodiphtheriticum isolated from upper respiratory tract specimens.
pubmed:affiliation
Department of Medical Microbiology, Medical University, Lublin, Poland. a.olender@umlub.pl
pubmed:publicationType
Journal Article