Hormone Action - Biochemical Aspects Of

Hormone trace substances produced by various endocrine glands, serve as chemical messengers carried by the blood to various target organs, where they regulate a variety of physiological and metabolic activities in vertebrates. Endocrinology, the study of hormones and their action, has long been an important field of vertebrate physiology, but apart from biochemical studies of the molecular structure of some of the hormones, until the late 1960s, little if anything was known of the biochemical mechanisms of hormone action. In the last few years, some important advances have been made in the molecular analysis of hormone function.