Increased incidence of meiotic anomalies in oligoasthenozoospermic males preselected for intracytoplasmic sperm injection

S. Egozcue, J. M. Vendrell, F. Garcia, A. Veiga, B. Aran, P. N. Barri, J. Egozcue

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Abstract

Purpose: Based on data from the literature, to detect the possible presence o fan increased frequency of meiotic anomalies in oligoasthenozoospermic (OA) patients preselected for intracytoplasmic sperm injection. Methods: Meiotic studies in as many successive patients with a clinical indication for a diagnostic testicular biopsy as needed to complete at least 100 cases with a severe OA (motile sperm concentration ≤1.5 x 106/ml). Results: An increased incidence of meiotic anomalies was found in 102 patients with a severe OA (17.6%) compared to the mean for 105 patients with other etiologies in the series (5.7%) or the mean for patients reviewed in the literature (6.5%). Conclusions: Patients with a severe OA have a higher incidence of synaptic anomalies. This may result in the malsegregation of chromosomes at meiosis I, producing abnormal sperm, and could explain the high incidence of sterility and some cases of abortion (in two thirds of the couples with abortions the husband had meiotic anomalies) in this group.
Original languageEnglish
Pages (from-to)307-309
JournalJournal of Assisted Reproduction and Genetics
Volume17
Issue number6
DOIs
Publication statusPublished - 13 Oct 2000

Keywords

  • Diploidy
  • Meiotic anomalies
  • Oligoasthenozoospermia
  • Sterility
  • Synaptic anomalies

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