Abstract
to characterize the antibiotic resistance of gram-positive cocci strains isolated from the prostate secretion in men with chronic bacterial prostatitis at the level of phenotype and genotype.Bacteria were isolated from the prostate secretion of men of reproductive age (20-45 years) with chronic bacterial prostatitis by conventional bacteriological method. The type of microorganisms was determined by MALDI-TOF mass spectrometry. Resistance to 16 antibiotics of 31 strains of E. faecalis and 91 cultures of coagulase-negative staphylococci (CoNS) was determined by the disk diffusion method. Antibiotic resistance genes (mecA; blaZ; aac(6)- aph (2); ant (4)-Ia; aph (3)-IIIa; gyrA, grlA) were detected using polymerase chain reaction (PCR ) using selected primers.A high resistance of enterococci to antibacterial drugs was revealed: fluoroquinolones, carbapenens, cephalosporins (with the exception of cefoperazone), gentamicin and oxacillin. It has been established that CoNS are characterized by variable antibiotic resistance, while: isolates of S. epidermidis and S. haemolyticus are resistant to all studied fluoroquinolones and carbapenems; S. warneri to carbapenems and the vast majority of studied cephalosporins; S. saprophyticus - to aminoglycosides. Amoxiclav and cefoperazone are characterized by the highest activity against clinical isolates. Using PCR, the presence of genetic determinants of resistance to aminoglycosides and -lactams was established in the isolates, with a predominance of the studied genes in CoNS.For effective antibiotic therapy in chronic bacterial prostatitis, it is necessary to conduct regional monitoring of the resistance of microorganisms to antibacterial drugs.
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