Cephalosporinase interactions and antimicrobial activity of BMY-28142, ceftazidime and cefotaxime.
نویسندگان
چکیده
منابع مشابه
Cephalosporinase interactions and antimicrobial activity of BMY-28142, ceftazidime and cefotaxime.
Cephalosporinases of Enterobacter cloacae and Citrobacter freundii were responsible for resistance to newer cephalosporins such as cefotaxime and ceftazidime but not BMY-28142. Interaction of these cephalosporins including hydrolysis, binding, inhibition, and inactivation with cephalosporinases from E. cloacae GN7471 and C. freundii GN7391 were studied. BMY-28142 was much more stable against th...
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چکیده بررسی فعالیت ضد اکسیدانی و ضدمیکروبی عصاره گیاه بن سرخ (allium jesdianum) به کوشش: زهرا مقیمی هدف از این تحقیق بررسی میزان ترکیبات فنولی کل، ترکیبات فلاوونوئیدی کل، فعالیت ضداکسیدانی و ضدمیکروبی عصاره ی گیاه تازه و خشک بن سرخ بود. استخراج عصاره به روش های غوطه وری، استفاده از همزن مغناطیسی، دستگاه مایکروویو، امواج فراصوت و گرمادهی مقاومتی و با استفاده از متانول، اتانول و آب به عنوا...
Synthesis and structure-activity relationships of a new series of cephalosporins, BMY-28142 and related compounds.
The synthesis of a series of 7-[(Z)-2-(2-aminothiazol-4-yl)-2-oxyiminoacetamido] -3-ammoniomethyl-3-cephems is described. Variations of an oxyimino moiety in the 7-side chain and a quaternary ammonium moiety in the 3-side chain were examined and structure-activity relationships studied. BMY-28142, the 3-(N-methylpyrrolidinio)methyl derivative of the 7-alpha-methoxyimino series of cephalosporins...
متن کاملIn vitro activity of BRL 36650, a new penicillin.
Compared with four beta-lactam antibiotics and amikacin, BRL 36650 and BMY-28142 were the most active against 509 Enterobacteriaceae, including cefotaxime-resistant isolates and resistant laboratory mutants. BRL 36650 was more active than aztreonam, ceftazidime, and BMY-28142 against Acinetobacter spp., Pseudomonas aeruginosa, and other Pseudomonas spp.; all strains were inhibited by 2 microgra...
متن کاملFrequency of in vitro resistance of Pseudomonas aeruginosa to cefepime, ceftazidime, and cefotaxime.
The selection frequencies of cefepime (BMY 28142), ceftazidime, and cefotaxime resistance among Pseudomonas aeruginosa strains were determined. Cefepime-resistant mutants were not selected by cefepime (frequency, less than 10(-11)). Ceftazidime- and cefotaxime-resistant mutants were isolated at frequencies of 10(-5) to 10(-10) and were often cross-resistant. However, cefepime resistance among c...
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ژورنال
عنوان ژورنال: The Journal of Antibiotics
سال: 1988
ISSN: 0021-8820,1881-1469
DOI: 10.7164/antibiotics.41.86