کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9271262 1219999 2005 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Comparison of activities of β-lactam antibiotics against Streptococcus pneumoniae with recombinant penicillin-binding protein genes from a penicillin-resistant strain
موضوعات مرتبط
علوم زیستی و بیوفناوری ایمنی شناسی و میکروب شناسی میکروبیولوژی و بیوتکنولوژی کاربردی
پیش نمایش صفحه اول مقاله
Comparison of activities of β-lactam antibiotics against Streptococcus pneumoniae with recombinant penicillin-binding protein genes from a penicillin-resistant strain
چکیده انگلیسی
We investigated the antibacterial activities of 19 β-lactams against three recombinant bacterial strains, in which three penicillin-binding protein genes, pbp2x, pbp1a, and pbp2b, from penicillin-resistant Streptococcus pneumoniae (PRSP), were transformed to a penicillinsusceptible strain. By the acquisition of the pbp2x gene from PRSP, the minimum inhibitory concentrations (MICs) of third-generation cephalosporins were increased more than eight fold. When the strain acquired the PRSP pbp1a gene in addition to pbp2x, the MICs of all tested β-lactams increased 2- to 16-fold. When the strain acquired the PRSP pbp2b gene in addition to pbp2x and pbp1a, the MICs of penicillins and carbapenems increased 4- to 16-fold. However, two novel carbapenems, ME1036 and L-036, showed excellent antibacterial activities against these recombinant strains, as well as against the parent PRSP.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Infection and Chemotherapy - Volume 11, Issue 2, 2005, Pages 107-111
نویسندگان
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