Publication Abstract

Authors: Troisi R, Hoover RN, Thadhani R, Hsieh CC, Sluss P, Ballard-Barbash R, Potischman N

Title: Maternal, prenatal and perinatal characteristics and first trimester maternal serum hormone concentrations.

Journal: Br J Cancer 99(7):1161-4

Date: 2008 Oct 07

Abstract: In uncomplicated pregnancies, first trimester androgen, oestrogen and prolactin concentrations were higher in nulliparous (n=160) than parous (n=260) mothers. Androgens and estrogens were higher in younger than older mothers. These data are consistent with elevated hormone concentrations mediating the breast cancer protection from a first pregnancy and pregnancies occurring at younger ages.