PMID- 10516431 OWN - NLM STAT- MEDLINE DCOM- 19991027 LR - 20171101 IS - 0301-0171 (Print) IS - 0301-0171 (Linking) VI - 86 IP - 1 DP - 1999 TI - Nondisjunction in human sperm: comparison of frequencies in acrocentric chromosomes. PG - 43-5 AB - Acrocentric chromosomes may be particularly predisposed to nondisjunction because of the frequency of trisomy for these chromosomes in human spontaneous abortions and liveborns. Studies of aneuploidy in human sperm have provided data on only a few acrocentric chromosomes, with evidence that chromosome 21 has a significantly increased frequency of disomy. To determine whether other acrocentric chromosomes have a higher frequency of nondisjunction or if chromosome 21 is anomalous, disomy frequencies for chromosomes 13 and 22 were studied by fluorescence in situ hybridization (FISH) analysis of 51,043 sperm nuclei from five normal men for whom the frequency of disomy for chromosomes 15 and 21 was known. The mean frequency of disomy for chromosome 13 (0.19%) did not differ significantly from that for other autosomes; however, the frequency of disomy 22 (1.21%) was significantly elevated (P < 0.001, Mantel-Haenszel chi(2) test). The G-group chromosomes (Nos. 21 and 22) also showed a significantly increased frequency of disomy (0. 75%) compared to acrocentric D-group chromosomes (viz., chromosomes 13 and 15; 0.15%) (P < 0.001, Mantel-Haenszel chi(2) test) and other autosomes (chromosomes 1, 2, 4, 9, 12, 13, 15, 16, 18, and 20; 0. 13%) studied in the same men (P < 0.001, Mantel-Haenszel chi(2) test). FAU - Martin, R H AU - Martin RH AD - Department of Medical Genetics, University of Calgary, Alberta Children's Hospital, Calgary, Alberta, Canada. renee@ach.ucalgary.ca FAU - Rademaker, A W AU - Rademaker AW LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Switzerland TA - Cytogenet Cell Genet JT - Cytogenetics and cell genetics JID - 0367735 SB - IM MH - *Aneuploidy MH - Cell Count MH - Chromosomes, Human/*genetics MH - Chromosomes, Human, Pair 13/genetics MH - Chromosomes, Human, Pair 22/genetics MH - Humans MH - In Situ Hybridization, Fluorescence MH - Male MH - *Nondisjunction, Genetic MH - Spermatozoa/*cytology/metabolism EDAT- 1999/10/12 00:00 MHDA- 1999/10/12 00:01 CRDT- 1999/10/12 00:00 PHST- 1999/10/12 00:00 [pubmed] PHST- 1999/10/12 00:01 [medline] PHST- 1999/10/12 00:00 [entrez] AID - 15427 [pii] AID - 10.1159/000015427 [doi] PST - ppublish SO - Cytogenet Cell Genet. 1999;86(1):43-5. doi: 10.1159/000015427.