PMID- 9465998 OWN - NLM STAT- MEDLINE DCOM- 19980311 LR - 20190914 IS - 0148-5016 (Print) IS - 0148-5016 (Linking) VI - 40 IP - 1 DP - 1998 Jan-Feb TI - Preconceptional sex selection: past, present, and future. PG - 3-14 AB - Predetermination of sex in human and in farm animals is reviewed. Preconceptional sex selection has generated great interest and controversy over the years. Medical and commercial benefits outweigh the ethical issues. Technology has not yet provided a routine method for separating the X- and Y-chromosome-bearing sperm. Flow cytometry is the only technique that produces a clinically significant enrichment of X- or Y-bearing spermatozoa However, concern has been raised about the methodological implications of the flow technique because of the use of DNA stains and UV light. Some other techniques, such as gradient columns, appear to produce a slight enrichment of one type of sperm over the other, but this level of enrichment appears unlikely to affect the sex ratio at birth. It thus remains speculative whether 100% pure preparation of X or Y sperm can be obtained unless a major improvement in methodology is achieved. Fluorescence in situ hybridization (FISH) and polymerase chain reaction (PCR) are currently the methods of choice for evaluating the validity of the sex selection procedure. In view of the extraordinary pace of the technological and scientific progress, it can be expected that the clinical and commercial application of the technology of preconceptional sex selection by X and Y sperm separation will be a reality in near future. FAU - Hossain, A M AU - Hossain AM AD - Department of Obstetrics and Gynecology, University of South Alabama, Mobile 36688, USA. FAU - Barik, S AU - Barik S FAU - Rizk, B AU - Rizk B FAU - Thorneycroft, I H AU - Thorneycroft IH LA - eng PT - Journal Article PT - Review PL - England TA - Arch Androl JT - Archives of andrology JID - 7806755 SB - IM MH - Animals MH - Ethics, Medical MH - Humans MH - Sex Preselection/*methods/veterinary RF - 92 EDAT- 1998/02/18 00:00 MHDA- 1998/02/18 00:01 CRDT- 1998/02/18 00:00 PHST- 1998/02/18 00:00 [pubmed] PHST- 1998/02/18 00:01 [medline] PHST- 1998/02/18 00:00 [entrez] AID - 10.3109/01485019808987923 [doi] PST - ppublish SO - Arch Androl. 1998 Jan-Feb;40(1):3-14. doi: 10.3109/01485019808987923.