Endocrine Abstracts

Circadian rhythms are a ubiquitous feature in living organisms. They are not just a passive response to daily cyclic fluctuations in the environment, but are instead driven by endogenous and self-sustained clocks. More than 40 years ago, the suprachiasmatic nucleus (SCN) of the hypothalamus was identified as the location of an endogenous circadian clock driving internal rhythmicity and this SCN oscillator was long thought to be the only mammalian clock, functioning as a master...