Endocrine Abstracts

Rhythmic change of the internal milieu is a fundamental principle in all living organisms. A variety of physiological events show daily rhythms, such as blood pressure, hormonal secretion, cell cycle, and migration of stem cells from the bone marrow to the systemic circulation. This timing is determined by the endogenous oscillatory system called the circadian clock. Within the last ten years, the molecular dissection of circadian clock has progressed dramatically, and it is n...