Deep, dark secrets of melatonin in animal evolution.

Schippers, Klaske J; Nichols, Scott A · Cell · 2014

basic_science · Level V

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Abstract

Tosches et al. show that melatonin signaling regulates circadian swimming in annelid worms by rhythmically activating cholinergic neurons. This suggests an evolutionary connection between melatonin signaling in invertebrates and sleep regulation in vertebrates.

Medical subject headings