title: Studies on the cytogenetic and endocrinologic background of spontaneous abortion.
abstract: OBJECTIVE
  To determine whether chronic menstrual irregularity with elevated LH levels has a role in spontaneous abortion.
  
  
  METHODS
  In 41 consecutively examined women with spontaneous abortions occurring within 11 complete gestational weeks, fetal chromosomal analyses were performed. The differences of endocrinologic background in relation to the result of fetal chromosomal analyses were investigated.
  
  
  METHODS
  Endocrinologic profiles, including menstrual history, basal hormone levels (LH, FSH, and PRL), ovarian morphology on ultrasound, and fetal chromosomal karyotypes.
  
  
  RESULTS
  The women with normal fetal karyotypes compared with those with abnormal fetal karyotypes showed higher frequency of menstrual irregularity (47.1% versus 8.3%), elevated basal LH levels (7.42 +/- 5.12 versus 4.41 +/- 1.39 mIU/mL; conversion factor to SI unit, 1.00), and higher frequency of polycystic ovary (41.2% versus 8.3%).
  
  
  CONCLUSIONS
  Elevated LH-polycystic ovary may be involved in the genesis of spontaneous abortions that are not explainable by fetal chromosomal abnormality.
authors.affiliation: Niigata University School of Medicine, Japan.
authors.forename: I
authors.initials: I
authors.lastname: Hasegawa
authors.forename: K
authors.initials: K
authors.lastname: Tanaka
authors.forename: H
authors.initials: H
authors.lastname: Sanada
authors.forename: T
authors.initials: T
authors.lastname: Imai
authors.forename: R
authors.initials: R
authors.lastname: Fujimori
mesh_terms: D000022:Abortion, Spontaneous / Q000209:etiology*; D000328:Adult; D002869:Chromosome Aberrations; D005260:Female; D005640:Follicle Stimulating Hormone / Q000097:blood; D006801:Humans; D007621:Karyotyping; D007986:Luteinizing Hormone / Q000097:blood*; D011085:Polycystic Ovary Syndrome / Q000150:complications; D011247:Pregnancy; D011388:Prolactin / Q000097:blood
chemical_list: D011388:Prolactin; D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone