for transferrin : age ( new-born/20-30 years : -29 to -71 % , 50-60 years/20-30 years : -15 % ) , menstrual cycle ( +15 % ) , pregnancy ( +37 to +70 % ) , exercise ( +9 to +13 % ) , oral contraceptives ( +10 to +62 % ) , medications ( danazol : +60 % , testosterone : -13 % , d-penicillamine : -13 to -30 % , l-asparaginase : -68 % ) ;
C0032961
pregnancy
C0039601
testosterone