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George A. Jacoby

Researcher at Lahey Hospital & Medical Center

Publications -  181
Citations -  29456

George A. Jacoby is an academic researcher from Lahey Hospital & Medical Center. The author has contributed to research in topics: Plasmid & DNA gyrase. The author has an hindex of 70, co-authored 181 publications receiving 27530 citations. Previous affiliations of George A. Jacoby include United States Public Health Service & Pasteur Institute.

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A functional classification scheme for beta-lactamases and its correlation with molecular structure.

TL;DR: These enzymes are the major cause of bacterial resistance to b-lactam antibiotics and have been the subject of extensive microbiological, biochemical, and genetic investigations.
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Updated Functional Classification of β-Lactamases

TL;DR: The functional classification scheme updated herein is based on the 1995 proposal and includes group 1 (class C) cephalosporinases; group 2 (classes A and D) broad-spectrum, inhibitor-resistant, and extended-spectrums β-lactamases and serine carbapenemases; and group 3 metallo-β-lacticamases.
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AmpC β-Lactamases

TL;DR: Overexpression confers resistance to broad-spectrum cephalosporins including cefotaxime, ceftazidime, and ceftriaxone and is a problem especially in infections due to Enterobacter aerogenes and Enterobacteria cloacae, where an isolate initially susceptible to these agents may become resistant upon therapy.
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Quinolone resistance from a transferable plasmid

TL;DR: Although resistance was low in wild-type strains, higher levels of quinolone resistance arose readily by mutation, suggesting that a multiresistance plasmid can speed the development and spread of resistance to these valuable antimicrobial agents.