title: Absence of blood type A or AB may be associated with diminished oocyte reserve.
abstract: OBJECTIVE
  To determine if blood type A protects against developing diminished oocyte reserve.
  
  
  METHODS
  Retrospective evaluation of incidence of blood type A (or AB) in women with normal oocyte reserve (day 3 serum follicle stimulating hormone (FSH) < or = 11 mIU/ml) vs. diminished oocyte reserve (FSH > or = 18 mIU/ml).
  
  
  RESULTS
  Five hundred forty-seven of 1,232 (44.4%) women with normal reserve had blood type A or AB vs. 33.8% (44/130) with diminished oocyte reserve (p = 0.027, chi-square).
  
  
  CONCLUSIONS
  Lack of blood type A or AB may link to some other gene that may be responsible for premature depletion of oocytes.
authors.forename: M
authors.initials: M
authors.lastname: Caruso
authors.forename: J H
authors.initials: JH
authors.lastname: Check
mesh_terms: D000017:ABO Blood-Group System; D000328:Adult; D005260:Female; D005640:Follicle Stimulating Hormone / Q000097:blood*; D006801:Humans; D007247:Infertility, Female / Q000097:blood*; D009865:Oocytes / Q000502:physiology*; D012189:Retrospective Studies
chemical_list: D000017:ABO Blood-Group System; D005640:Follicle Stimulating Hormone