Postovulatory aging of human ova: II. Spontaneous division of the first polar body

M. E. Ortiz, P. Lucero, H. B. Croxatto

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)

Abstract

Two oocytes recovered from the Fallopian tube at 24 and 50 h following the LH peak in plasma were examined by light microscopy and transmission electron microscopy. The possibility of fertilization was excluded by clinical and morphologic evidence. In the earliest specimen, the first polar body showed condensed nuclear chromatin, without nuclear envelope, and is interpreted as entering interphase. In the other specimen, the first polar body was undergoing division, which is interpreted as spontaneous second meiotic division.

Original languageEnglish
Pages (from-to)269-276
Number of pages8
JournalGamete Research
Volume7
Issue number3
DOIs
Publication statusPublished - 1983

Keywords

  • aging gametes
  • human oogenesis
  • meiosis
  • polar body
  • secondary oocyte

ASJC Scopus subject areas

  • Genetics
  • Developmental Biology

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