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Hypothalamic integration of central and peripheral clocks

Nature Reviews Neuroscience volume 2, pages 521–526 (2001)Cite this article

Abstract

During sleep, our biological clock prepares us for the forthcoming period of activity by controlling the release of hormones and the activity of the autonomic nervous system. Here, we review the history of the study of circadian rhythms and highlight recent observations indicating that the same mechanisms that govern our central clock might be at work in the cells of peripheral organs. Peripheral clocks are proposed to synchronize the activity of the organ, enhancing the functional message of the central clock. We speculate that peripheral visceral information is then fed back to the same brain areas that are directly controlled by the central clock. Both clock mechanisms are proposed to have a complementary function in the organization of behaviour and hormone secretion.

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Figure 1: Light–dark cycles and the clock.
Figure 2: Targets of the SCN.
Figure 3: Interaction between peripheral and central clocks.

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Acknowledgements

We would like to thank all the members of our group at the Netherlands Institute for Brain Research for their contributions, and H. Stoffels for his artwork.

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  1. the Netherlands Institute for Brain Research, Meibergdreef 33, Amsterdam, 1105 AZ, The Netherlands

    Ruud M. Buijs & Andries Kalsbeek

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Vasoactive intestinal peptide

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Buijs, R., Kalsbeek, A. Hypothalamic integration of central and peripheral clocks. Nat Rev Neurosci 2, 521–526 (2001). https://doi.org/10.1038/35081582

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