This review summarizes new findings related to beneficial effects of melatonin (N-acetyl-5-
methoxytryptamine) on reproductive physiology. Recently many researchers have begun to …

Under stressful condition, reproductive function is impaired due to the activation of various
components of the hypothalamic–pituitaryadrenal (HPA) axis, which can suppress the …

Gonadotropin-inhibitory hormone (GnIH) is a hypothalamic neuropeptide that inhibits
gonadotropin secretion in birds and mammals. To further understand its physiological roles …

Photoperiodism is the ability of plants and animals to measure environmental day length to
ascertain time of year. Central to the evolution of photoperiodism in animals is the adaptive …

A hypothalamic neuropeptide, gonadotropin-releasing hormone (GnRH), is the primary
factor regulating gonadotropin secretion. An inhibitory hypothalamic neuropeptide for …

Seasonal neuroendocrine cycles that govern annual changes in reproductive activity,
energy metabolism and hair growth are almost ubiquitous in mammals that have evolved at …

Substantial progress has been made in recent years toward deciphering the molecular and
genetic underpinnings of the pubertal process. The availability of powerful new methods to …

RFamide-related peptide-3 (RFRP-3) is known to inhibit the activity of GnRH neurons. It is
not yet clear whether its G protein-coupled receptors, GPR147 and GPR74, are present on …

In seasonal mammals, a distinct photoneuroendocrine circuit that involves the pineal
hormone melatonin tightly synchronizes reproduction with seasons. In the Syrian hamster, a …

Gonadotrophin‐releasing hormone (GnRH) is the primary hypothalamic factor responsible
for the control of gonadotrophin secretion in vertebrates. However, within the last decade …