Browsing by Author "Kesli, R."

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Anti-Tuberculous Drug Resistance of Mycobacterium Tuberculosis Strains Isolated From Van Region
(Elsevier Sci Ltd, 2008) Bozkurt, H.; Nalcacioglu, R. B.; Kurtoglu, M. G.; Kesli, R.; Berktas, M.
Correlation of Slime Production Investigated Via Three Different Methods in Coagulase-Negative Staphylococci With Crystal Violet Reaction and Antimicrobial Resistance
(Sage Publications Ltd, 2009) Bozkurt, H.; Kurtoglu, M. G.; Bayram, Y.; Kesli, R.; Berktas, M.
This study investigated slime production by coagulase-negative staphylococci (CNS) using the standard tube (ST), Congo red agar (CRA) plate and Christensen's tube (CT) methods, and compared the results with those of the crystal violet reaction (CVR) test. The potential correlation between slime production and antimicrobial resistance was also evaluated. In total, 205 CNS strains were isolated from biological samples: 92 (44.9%) were shown to produce slime by the ST method; 96 (46.8%) by the CRA plate method; 90 (43.9%) by the CT method; and 89 (43.4%) strains were CVR positive. Eighty-three (40.5%) CNS strains were positive for slime production by the ST, CRA and CT methods. The findings of the ST, CRA and CT test methods were consistent with each other but were not related to CVR positivity. Based on the ST method, rates of antibiotic resistance to several antimicrobial agents were higher in slime-positive strains than in slime-negative strains and, in some cases, this was statistically significant.
Distribution of Hepatitis C Prevalence in Individuals According To Their Age Level in Eastern Turkey
(2008) Bozkurt, H.; Kurtoglu, M.G.; Bayram, Y.; Kesli, R.; Berktas, M.
Distribution, Optimum Detection Time and Antimicrobial Susceptibility Rates of the Microorganisms Isolated From Blood Cultures Over a 4-Year Time Period in a Turkish University Hospital and a Review of the International Literature
(Sage Publications Ltd, 2008) Kurtoglu, M. G.; Bozkurt, H.; Tuncer, O.; Kesli, R.; Berktas, M.
This study retrospectively examined 8986 blood cultures from patients over a 4-year time period in an eastern Turkish university hospital to determine the detection times and distribution of isolated microorganisms using the automated BACTEC (TM) 9050 and BACTEC (TM) 9120 systems. A total of 1914 (21.3%) blood cultures contained pathogenic microorganisms and 252 (2.8%) positive cultures were considered contaminated. Of all the cultures, 18 (0.2%) were false positives and 224 (2.5%) were false negatives. In cultures containing pathogenic microorganisms, Gram-positive and Gram-negative bacterial isolation rates were 436 (22.8%) and 1440 (75.2%), respectively, and yeasts (all Candida sp.) were found in 38 (2.0%) cultures. Coagulase-negative staphylococci occurred in 936 (48.9%) cultures and Staphylococcus aureus occurred in 302 (15.8%) cultures. The mean detection time for all of the pathogens was 21 h and Brucella spp were isolated within 10 days. This study helps in understanding the epidemiology of the region and in providing positive therapeutic approaches. A review of the international literature helps to place this understanding into a global context.