Evolution of The Vertebrate Pineal Gland: The Aanat Hypothesis

@article{Klein2006EvolutionOT,
  title={Evolution of The Vertebrate Pineal Gland: The Aanat Hypothesis},
  author={David C. Klein},
  journal={Chronobiology International},
  year={2006},
  volume={23},
  pages={20 - 5}
}
  • D. Klein
  • Published 2006
  • Biology, Medicine
  • Chronobiology International
The defining feature of the pineal gland is the capacity to function as a melatonin factory that operates on a ∼24 h schedule, reflecting the unique synthetic capacities of the pinealocyte. Melatonin synthesis is typically elevated at night and serves to provide the organism with a signal of nighttime. Melatonin levels can be viewed as hands of the clock. Issues relating to the evolutionary events leading up to the immergence of this system have not received significant attention. When did… Expand
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