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Optimum testicular aspiration technique for deoxyribonucleic acid flow cytometric analysis of spermatogenesis in
1Department of Urology, Delta Regional Primate Research Center, Tulane University School of Medicine, New Orleans, Louisiana 70112.
Abstract:
Deoxyribonucleic acid flow cytometry on testicular tissue is an established method to evaluate spermatogenesis. Needle aspiration is less invasive and permits sequential sampling as compared with open testis biopsy. Using seven primates, we examined the needle aspiration technique. There was no significant difference among locations aspirated; the Westcott needle (Bard Urological, Covington, GA) provided the most rapid analysis, and both the Biopty gun (Bard Urological) and Westcott needle were easy to use. Baseline means +/- SD for ploidy distributions were 1N: 65.73% +/- 7.1; 2N: 18.95% +/- 5.5; 4N: 11.4% +/- 2, Experimental data generated from primate models using testis aspiration and flow cytometry may elucidate human infertile conditions.
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