Malaysian Abstracting and Indexing SystemA Correlation Between the Genes Responsible for Penicillin and Erythromycin Resistance in Streptococcus Pneumoniae and the Minimum Inhibitory Concentration (MIC) Values: A Potential Approach for Molecular Detection of Susceptibility Mhd. Nasir Mohd Desaauthor Thong, Kwai Linauthor Parasakhti NavaratnamauthorThe correlation of pbp 2b restriction fragment length polymorphism (RFLP) patterns of fifty clinical isolates of Malaysian Streptococcus pneumoniae, as well as the distribution of determinant genes for erythromycin resistance; mefE and ermB, with the respective minimum inhibitory concentration (MIC) values for penicillin and erythromycin (determined by agar dilution method) were examined. Strains with penicillin MIC of ≥ 0.5 μg/ml had unique pbp 2b RFLP patterns that were absent in the penicillinsusceptible strains. The prevalence of ermB, either alone or together with mefE, was frequently observed in strains with higher MIC values (> 8 μg/ml) whereas mefE alone was observed in strains with lower MIC values (1 μg/ml - 4 μg/ml). This showed that the pbp 2b RFLP patterns and the distribution of mefE and ermB genes followed certain patterns in relation to the susceptibility. This correlation may thus be used as a diagnostic criterion for molecular detection of resistance.Q Science, Computer ScienceR Medicine, Dentistry, Pharmacy, Nursing2005Malaysian Society for Biochemistry and Molecular BiologyJournal

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