title: Gonadotropin levels in mothers who have had two sets of DZ twins.
abstract: Serum gonadotropin, estradiol, prolactin and alpha-1-antitrypsin levels were measured in the first four days of the menstrual cycle in 14 women who were cycling normally. FSH, and to a lesser extent LH levels, were significantly higher in a group of 8 women who had at least one set of DZ twins (6 of whom had 2 sets) than in a control group of 6 women with no DZ twins. Estradiol levels also tended to be higher in mothers of twins but there were no significant differences in prolactin or alpha-1-antitrypsin concentrations. There were no differences between the means of the two groups in age, height, weight or number of pregnancies.
mesh_terms: D000328:Adult; D004958:Estradiol / Q000097:blood; D005260:Female; D005640:Follicle Stimulating Hormone / Q000097:blood; D005498:Follicular Phase; D006062:Gonadotropins / Q000097:blood*; D006801:Humans; D007986:Luteinizing Hormone / Q000097:blood; D009035:Mothers; D011247:Pregnancy; D011388:Prolactin / Q000097:blood; D014427:Twins; D014429:Twins, Dizygotic; D000515:alpha 1-Antitrypsin / Q000097:blood
chemical_list: D006062:Gonadotropins; D000515:alpha 1-Antitrypsin; D004958:Estradiol; D011388:Prolactin; D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone