Biomaterial Database

Incidence and mechanisms of aminoglycoside resistance in Pseudomonas aeruginosa serotype O11 isolates. 1995

M Kettner, and P Milosovic, and M Hletková, and J Kallová

Dept. of Microbiology and Virology, Comenius University, Bratislava, Slovakia.

Mechanisms of resistance to five aminoglycoside antibiotics: gentamicin (G), tobramycin (T), netilmicin (N), amikacin (A) and isepamicin (I), were assessed in 16 clinical isolates of Pseudomonas aeruginosa serotype O11, originating from five hospitals in Bratislava. All isolates were in vitro highly resistant to all mentioned aminoglycoside antibiotics (MIC > 32 mg/l). Thirteen isolates produced three aminoglycoside-modifying enzymes (AGME), responsible for resistance to the respective aminoglycosides: AAC(6')-I (T, N, A); APH (2") (G, T); APH (3')-VI (I). In addition to this, in four isolates a production of AAC(3)-II (G, T, N) was observed. In three isolates no production of AGME was observed. The strains studied were isolated mainly from urine. Several isolates were able to transfer aminoglycoside resistance by bacterial conjugation to P. aeruginosa 1008 rifr recipient. The transconjugants from these transfers expressed the same resistance pattern and nearly the same mechanisms of resistance as the donor strains.

UI	MeSH Term	Description	Entries
D011550	Pseudomonas aeruginosa	A species of gram-negative, aerobic, rod-shaped bacteria commonly isolated from clinical specimens (wound, burn, and urinary tract infections). It is also found widely distributed in soil and water. P. aeruginosa is a major agent of nosocomial infection.	Bacillus aeruginosus,Bacillus pyocyaneus,Bacterium aeruginosum,Bacterium pyocyaneum,Micrococcus pyocyaneus,Pseudomonas polycolor,Pseudomonas pyocyanea
D003227	Conjugation, Genetic	A parasexual process in BACTERIA; ALGAE; FUNGI; and ciliate EUKARYOTA for achieving exchange of chromosome material during fusion of two cells. In bacteria, this is a uni-directional transfer of genetic material; in protozoa it is a bi-directional exchange. In algae and fungi, it is a form of sexual reproduction, with the union of male and female gametes.	Bacterial Conjugation,Conjugation, Bacterial,Genetic Conjugation
D004352	Drug Resistance, Microbial	The ability of microorganisms, especially bacteria, to resist or to become tolerant to chemotherapeutic agents, antimicrobial agents, or antibiotics. This resistance may be acquired through gene mutation or foreign DNA in transmissible plasmids (R FACTORS).	Antibiotic Resistance,Antibiotic Resistance, Microbial,Antimicrobial Resistance, Drug,Antimicrobial Drug Resistance,Antimicrobial Drug Resistances,Antimicrobial Resistances, Drug,Drug Antimicrobial Resistance,Drug Antimicrobial Resistances,Drug Resistances, Microbial,Resistance, Antibiotic,Resistance, Drug Antimicrobial,Resistances, Drug Antimicrobial
D000617	Aminoglycosides	Glycosylated compounds in which there is an amino substituent on the glycoside. Some of them are clinically important ANTIBIOTICS.	Aminoglycoside
D000900	Anti-Bacterial Agents	Substances that inhibit the growth or reproduction of BACTERIA.	Anti-Bacterial Agent,Anti-Bacterial Compound,Anti-Mycobacterial Agent,Antibacterial Agent,Antibiotics,Antimycobacterial Agent,Bacteriocidal Agent,Bacteriocide,Anti-Bacterial Compounds,Anti-Mycobacterial Agents,Antibacterial Agents,Antibiotic,Antimycobacterial Agents,Bacteriocidal Agents,Bacteriocides,Agent, Anti-Bacterial,Agent, Anti-Mycobacterial,Agent, Antibacterial,Agent, Antimycobacterial,Agent, Bacteriocidal,Agents, Anti-Bacterial,Agents, Anti-Mycobacterial,Agents, Antibacterial,Agents, Antimycobacterial,Agents, Bacteriocidal,Anti Bacterial Agent,Anti Bacterial Agents,Anti Bacterial Compound,Anti Bacterial Compounds,Anti Mycobacterial Agent,Anti Mycobacterial Agents,Compound, Anti-Bacterial,Compounds, Anti-Bacterial

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