Intrinsic Role of Polysialylated Neural Cell Adhesion Molecule in Photic Phase Resetting of the Mammalian Circadian Clock

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Intrinsic role of polysialylated neural cell adhesion molecule in photic phase resetting of the Mammalian circadian clock.

The suprachiasmatic nuclei (SCN), the location of the mammalian circadian clock, are one of the few adult brain regions that express the highly polysialylated form of neural cell adhesion molecule (PSA-NCAM). A role for the polysialic acid (PSA) component of PSA-NCAM, which is known to promote tissue plasticity, has been reported for photic entrainment of circadian rhythmicity in vivo. The in v...

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The suprachiasmatic nuclei (SCN) contain the principal circadian clock governing overt daily rhythms of physiology and behavior. The endogenous circadian cycle is entrained to the light/dark via direct glutamatergic retinal afferents to the SCN. To understand the molecular basis of entrainment, it is first necessary to define how rapidly the clock is reset by a light pulse. We used a two-pulse ...

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ژورنال

عنوان ژورنال: The Journal of Neuroscience

سال: 2003

ISSN: 0270-6474,1529-2401

DOI: 10.1523/jneurosci.23-02-00652.2003