PMID- 17852047 OWN - NLM STAT- MEDLINE DCOM- 20071019 LR - 20220330 IS - 0148-5016 (Print) IS - 0148-5016 (Linking) VI - 53 IP - 4 DP - 2007 Jul-Aug TI - Spermatozoa and chronic treatment with finasteride: a TEM and FISH study. PG - 229-33 AB - Finasteride is a specific inhibitor of the 5alpha reductase enzyme originally approved for the treatment of benign prostatic hypertrophy and also for the treatment of androgenetic alopecia (AGA) in men at a dose of 1 mg/day. We report on three cases of young men recruited at our Centre for Male Infertility who had used finasteride for five years. Semen quality was investigated by light microscopy to evaluate sperm concentration and motility. Sperm morphology was performed by transmission electron microscope (TEM) and the data were analyzed. The presence of Y microdeletions was investigated by PCR. Meiotic segregation was explored by fluorescence in situ hybridization (FISH). Patient 1 was azoospermic, patients 2 and 3 showed a normal sperm concentration and severely reduced progressive motility. TEM analysis revealed altered sperm morphology consistent with necrosis and FISH data revealed elevated diploidy and sex chromosome disomy frequencies. This examination was repeated 1 year after the men had suspended the use of finasteride, without receiving any other treatment. A recovery of spermatogenetic process was observed. Motility and morphology improved whereas the meiotic pattern did not change presenting elevated diploidy and sex chromosome disomy frequency. FAU - Collodel, Giulia AU - Collodel G AD - Department of Surgery, Biology Section, Interdepartmental Centre for Research and Therapy of Male Infertility, University of Siena, Policlinico Le Scotte, Viale Bracci 14, 53100 Siena, Italy. FAU - Scapigliati, Giacomo AU - Scapigliati G FAU - Moretti, Elena AU - Moretti E LA - eng PT - Case Reports PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Arch Androl JT - Archives of andrology JID - 7806755 RN - 57GNO57U7G (Finasteride) SB - IM MH - Adult MH - Alopecia/drug therapy MH - Aneuploidy MH - Diploidy MH - Finasteride/*adverse effects MH - Humans MH - In Situ Hybridization, Fluorescence MH - Infertility, Male/chemically induced MH - Male MH - Microscopy, Electron, Transmission MH - Spermatozoa/*drug effects/pathology EDAT- 2007/09/14 09:00 MHDA- 2007/10/20 09:00 CRDT- 2007/09/14 09:00 PHST- 2007/09/14 09:00 [pubmed] PHST- 2007/10/20 09:00 [medline] PHST- 2007/09/14 09:00 [entrez] AID - 781950630 [pii] AID - 10.1080/01485010701426471 [doi] PST - ppublish SO - Arch Androl. 2007 Jul-Aug;53(4):229-33. doi: 10.1080/01485010701426471.