Relations between sex hormones, sex hormone binding globulin, insulin‐like growth factor‐I and insulin‐like growth factor binding protein‐I in post‐menopausal breast cancer patients

Abstract

Our results do not suggest any influence of plasma sex steroids in physiological concentrations on IGF-I or IGFBP-1 in post-menopausal breast cancer patients, nor do they indicate IGF-I at physiological concentrations influences the ratios between plasma oestrogens and their androgen precursors.