The objectives of this paper are to organize our concepts about the environmental regulation
of reproduction in mammals and to delineate important gaps in our knowledge of this …

There is a daily rhythm in the production of the pineal hormone melatonin in all mammalian
species. Production is stimulated by darkness and inhibited by light. This provides a signal …

Part three of this three-part series commences with other aspects of immunity and infection.
Parts one and two appear in previous issues of theArchives. 1, 2 OTHER ASPECTS OF …

An assessment of the rhythmic characteristics of melatonin secretion in manand other
species requires the determination of 24-h secretion profiles. Measurement of a major …

Abstract Syrian (Mesocricetus auratus) and Siberian (Phodopus sungorus sungorus)
hamsters exhibit seasonal changes in body weight mainly by altering their carcass lipid …

✓ Since the discovery of melatonin approximately 25 years ago, there has been intense
study regarding the details of the structure and function of the pineal gland. This work is …

The plasma concentrations of melatonin in man, fasting and fed, were determined after
ingestion of three different oral preparations. A dose of 2 mg was given as either a gelatine …

Whether or not the pineal gland has a significant physiological role in humans is not known.
There has nevertheless been speculation about the potential therapeutic use of melatonin …

In recent years, an effort has been made to begin to understand the endocrine regulation
systems of endangered sea turtles. The purpose of the present paper is to review this area …

The volatile constituents of wolf anal-sac secretions were examined via capillary gas
chromatography and compared among intact males, females, castrate males …