abstract
The expression and role of growth hormone (GH) in the reproductive system of mammals is rather well
established. In birds the limited information thus far available suggests that GH is an endocrine or
paracrine/autocrine regulator of ovarian and oviductal functions too. GH and its receptors are expressed
in all compartments of the ovary and oviduct and change accordingly to physiological state. The intraovarian
role of GH likely includes the regulation of steroidogenesis, cell proliferation and apoptosis,
the modulation of LH action and the synthesis of IGFs (insulin-like growth factors). In the oviduct, GH
is also involved in the regulation of oviduct-specific protein expression. The present study provides a
review of current knowledge on the presence and action of GH in the female reproduction, in which it
is likely that act in endocrine, autocrine or paracrine mechanisms.
2015 Elsevier Inc. All rights reserved.