title: Resistance to gentamicin: a growing concern.
abstract: Gentaminic was introduced in 1969 as a broad-spectrum aminoglycoside effective in vitro against a majority of aerobic gram-negative bacilli. In recent years gentamicin-resistant clinical isolates have become more prevalent. In our laboratory in 1975, 32% of Pseudomonas sp and 44% of indole-negative Proteus sp isolates were resistant to gentamicin. Resistance to tobramycin is also increasing; 24% of Escherichia coli and 28% of indole-negative Proteus sp isolates were found to be tobramycin-resistant. In addition, isolation of previously uncommon gentamicin-resistant species, ie, Proteus rettgeri and other indole-positive Proteus sp, from clinical specimens has increased dramatically in the past five years. This increase in gentamicin and tobramycin-resistant gram-negative bacilli serves as a constant stimulus for the development of new antimicrobial agents.
mesh_terms: D004352:Drug Resistance, Microbial; D004755:Enterobacteriaceae / Q000187:drug effects*; D004926:Escherichia coli / Q000187:drug effects; D005839:Gentamicins / Q000494:pharmacology*; D006088:Gram-Negative Aerobic Bacteria / Q000187:drug effects / Q000302:isolation & purification; D007709:Klebsiella / Q000187:drug effects; D011511:Proteus / Q000187:drug effects; D011549:Pseudomonas / Q000187:drug effects; D012705:Serratia / Q000187:drug effects; D014031:Tobramycin / Q000494:pharmacology
chemical_list: D005839:Gentamicins; D014031:Tobramycin