A role of nociceptin in the entrainment mechanism of the biological clock

Koji Teshima, Shigenobu Shibata

    Research output: Contribution to journalArticle

    Abstract

    The ORL1 receptor (nociceptin receptor), the fourth member of the opioid receptor family, is widely distributed throughout the central nervous system and mediates diverse physiological functions including pain, emotion, learning and memory. Nociceptin receptors are densely expressed in the suprachiasmatic nucleus, the principal pacemaker of circadian rhythms, and nociceptin inhibits light-induced phase advances (Allen et al, 1999); however, nociceptin's role in nonphotic entrainment has not been described. We used a small-molecule nociceptin receptor agonist capable of crossing the brain blood-brain barrier, and demonstrated that nociceptin acts as a nonphotic zeitgeiber. In this review, we describe a role for nociceptin in the biological clock and discuss the possibility of developing nociceptin receptor agonists for treatment of circadian rhythm disorders.

    Original languageEnglish
    Pages (from-to)203-211
    Number of pages9
    JournalJapanese Journal of Neuropsychopharmacology
    Volume25
    Issue number5
    Publication statusPublished - 2005 Oct

    Fingerprint

    Biological Clocks
    Blood-Brain Barrier
    Chronobiology Disorders
    Suprachiasmatic Nucleus
    Opioid Receptors
    Circadian Rhythm
    Emotions
    Central Nervous System
    nociceptin receptor
    nociceptin
    Learning
    Light
    Pain

    Keywords

    • Biological clock
    • Circadian rhythm
    • Nociceptin
    • Suprachiasmatic nucleus

    ASJC Scopus subject areas

    • Psychiatry and Mental health
    • Pharmacology (medical)
    • Pharmacology, Toxicology and Pharmaceutics(all)

    Cite this

    A role of nociceptin in the entrainment mechanism of the biological clock. / Teshima, Koji; Shibata, Shigenobu.

    In: Japanese Journal of Neuropsychopharmacology, Vol. 25, No. 5, 10.2005, p. 203-211.

    Research output: Contribution to journalArticle

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