title: Changes in antithrombin III levels in pregnancy, labour and in women on the contraceptive pill.
abstract: Antithrombin III activity as determined by the modified Mancini technique is reported for the first time in different groups of Nigerian women as well as in a group of male blood donors. The mean level of activity (78.69%) observed in women during their second and third trimesters was lower than the mean value in the same group of women at parturition (93.18%) and significantly lower than a control group of non-pregnant women who were also not on the contraceptive pill (109.67; P less than 0.05). There was no significant difference between the mean activity of the female control group and that of women on the contraceptive pill and that of a group of male blood donors of the same age range.
mesh_terms: D000293:Adolescent; D000328:Adult; D000991:Antithrombins / Q000097:blood*; D003276:Contraceptives, Oral / Q000494:pharmacology*; D005260:Female; D006801:Humans; D007743:Labor, Obstetric; D008297:Male; D011247:Pregnancy
chemical_list: D000991:Antithrombins; D003276:Contraceptives, Oral