Browsing by Subject "urogenital system"

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    Prevalence of testicular microlithiasis in an asymptomatic population
    (2006) Serter S.; Gümüş B.; Ünlü M.; Tunçyürek Ö.; Tarhan S.; Ayyildiz V.; Pabuscu Y.
    Objective. Testicular microlithiasis is a rare, usually asymptomatic, finding of the testes associated with various genetic anomalies and infertility. It is also widely believed that testicular microlithiasis is strongly associated with testicular tumor. The aim of this prospective study was to determine the true prevalence of testicular microlithiasis in an asymptomatic population by means of ultrasound screening. Material and methods. Healthy male volunteers (17-42 years old) were recruited from the annual Army Reserve Officer Training Corps training camp at Manisa, Turkey. A screening genitourinary history was obtained and a physical examination and screening scrotal ultrasound scan were performed. All men diagnosed with testicular microlithiasis underwent complete clinical evaluations, physical examinations and determination of tumor markers. Results. Fifty-three men with testicular microlithiasis were identified from the 2179 ultrasound scans, giving a prevalence of testicular microlithiasis of 2.4% in this asymptomatic population. The age (mean±SD) of subjects with testicular microlithiasis was 23.9±4.2 years (range 20-31 years). Conclusion. Our results suggest that there is no significant association between TM and testicular cancer, although it is difficult to rule out such an association without further studies with a longer follow-up period. © 2006 Taylor & Francis.
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    Isotopic dilution analysis of zinc in some tissue samples of urogenital systems of rats using 65Zn
    (2009) Ünak T.; Çal Ç.; Yildirim Y.; AvcIbaşI U.; Ünak G.
    Zinc plays an important role in prostate functions. For this reason, in this study some rats have been nourished with foods containing different zinc levels and some tissue samples removed at different intervals of time from their prostate, testis, and seminal vesicle. The zinc contents of these samples have been determined using the isotopic dilution analysis technique applied with 65Zn. In this way, the zinc contents of tissues varying between 0.02-4.50 μg Zn/g wet tissue could be determined with good precision. As a result, the zinc content of the prostate was found to be considerably high with respect to the zinc contents of the testis and the seminal vesicle. It is also interesting to note that a high zinc level in foods results in the accumulation of zinc in the prostate rather than in the testis and the seminal vesicle. The zinc content of the seminal vesicle decreases with a function of time passed from the beginning of the diet which contrasts with the case of prostate. It is also very remarkable that when the level of zinc in the body is low, the content of zinc in the testis is considerably higher. © 2009 Akadémiai Kiadó, Budapest, Hungary.