Cytological and molecular genetics methods were used to study sperm from patients with sperm infected with herpes simplex virus (HSV) as indicated by virological and immunocytochemical tests. The following methods were used: (1) sperm analysis to evaluate the morphology and functional properties of sperm; (2) fluorescence in situ hybridization (FISH) with DNA probes specific for chromosomes 1, X, and Y to evaluate nondisjunction frequencies of these chromosomes in sperm; and (3) quantitative analysis of immature germ cells in the ejaculate to identify spermatogenic abnormalities. The total sperm count and the count of sperm with normal motility proved similar to the norm. FISH analysis demonstrated no difference in the nondisjunction frequency of chromosomes 1, X, and Y between infertile patients with HSV-infected sperm and fertile donors. Comparative quantitative analysis of immature germ cells from the ejaculate has demonstrated a significant and considerable (threefold) increase in the number of spermatocytes I in pachytene and diplotene, at the prepachytene stages of prophase I (preleptotene, leptotene, and zygotene) in HSV patients compared to normal donors. At the same time, HSV patients demonstrated a significant decrease in the number of spermatocytes I, in pachytene and diplotene, decrease in the proportion of spermatocytes II and spermatids, and a twofold increase in the number of unidentifiable immature germ cells. The data obtained indicate a partial spermatogenic arrest at the early stages of meiotic prophase I in HSV patients, which prompts further research into the cellular mechanisms of abnormal spermatogenesis after viral infection in humans.
Russian Journal of Developmental Biology – Springer Journals
Published: Jan 18, 2011
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