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Biomedical subjects

Gunay Tuncer

Publications and source records attributed to Gunay Tuncer.

2 recordsLinked to original sources

Brucellar orchitis in Innerwest Anatolia Region of Turkey. A report of 12 cases.

Brucellosis, which affects the genitourinary system in rate of 2-20%, is a multiorgan infectious disease. Twelve patients were diagnosed as having brucellar orchitis serologically, clinically and ultrasonographically. In 2 patients, Brucella melitensis was isolated in blood cultures. All the patients were working in cattle dealing. They were treated with 600 mg/day rifampicin plus 200 mg/day doxycycline for 6 weeks and followed up during 1 year. They recovered clinically within 3 weeks. Although they did not have any symptoms or findings, in 4 patients, serological titers did not return to normal after 6 weeks. In 2 of these patients, relapse was seen in the 6th and 8th months, respectively. These 2 patients recovered with 1 g/day ciprofloxacin plus 2 g/day tetracycline for 6 weeks. Relapse did not occur again. Conclusively, brucellosis must be considered as a cause of orchitis in especially endemic regions where cattle dealing is widespread. The patients must be followed for relapse during at least 1 year.

Acute Disease↗

Neuraminidase produces dose-dependent decrease of slime production and adherence of slime-forming, coagulase-negative staphylococci.

BACKGROUND: Slime is one of the important structures of certain bacterial strains involved in nonspecific adherence. This study was conducted to determine the role of neuraminidase on slime formation and adherence of slime-forming coagulase-negative staphylococci to inert surface. METHODS: Quantitative biofilm and qualitative bacterial adherence assays were performed with increasing concentrations of neuraminidase extracted from Clostridium perfringens-treated bacteria in polystyrene plates and polypropylene tubes. RESULTS: Slime production of slime-forming, coagulase-negative staphylococci was significantly decreased dose dependently at > or =100 mU/mL (p <0.001). Bacterial adherence to smooth surface was impeded at > or =100 mU/mL of neuraminidase treatment and adherence results were comparable with slime production assay results. CONCLUSIONS: Sialic acid may be a constituent molecule of slime and involved in bacterial adherence to inert surface. These results represent new insight into the mechanism of slime production and adherence of slime-forming, coagulase-negative staphylococci to inert surface.

Animals↗