Endocrine Abstracts

Prolactin (PRL) exists in different forms in human serum. The predominant form is little PRL (23 kDa) with smaller amounts of big PRL (50–60 kDa), that may be also associated with big big PRL (bbPRL) or macroprolactin (150–170 kDa). A lower biological activity in vivo of bbPRL was reported. Aim of the study was to evaluate the clinical impact of macroprolactin and the association between macroprolactinaemia and polycystic ovary syndrome (PCOS). A group of 115 ...