Melatonin accelerates reentrainment of circadian locomotor activity rhythms to new light-dark cycles in the rat Melatonin Accelerates Reentrainment of Circadian Locomotor Activity Rhythms to New Light-Dark Cycles in the Rat

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Author(s)

    • MARUMOTO Nobuyuki
    • Department of Veterinary Physiology, Faculty of Agriculture, Miyazaki University
    • MURAKAMI Noboru
    • Department of Veterinary Physiology, Faculty of Agriculture, Miyazaki University
    • KURODA Haruto
    • Department of Veterinary Physiology, Faculty of Agriculture, Miyazaki University
    • MURAKAMI Takayuki
    • Department of Veterinary Anatomy, Faculty of Agriculture, Miyazaki University

Abstract

We examined whether continuous melatonin administration through subcutaneously implanted silastic tubing accelerates reentrainment of circadian rhythms of locomotor activity to shifted illumination cycles. We found that rats required less time to reentrain to an advanced or delayed phase shift of a light-dark cycle while carrying a silastic implant filled with melatonin than while carrying an empty implant. These results suggest that continuous administration of me[atonin accelerates the reentrainment of the circadian locomotor activity rhythm to a new light-dark cycle.

Journal

  • The Japanese Journal of Physiology

    The Japanese Journal of Physiology 46(4), 347-351, 1996-08

    THE PHYSIOLOGICAL SOCIETY OF JAPAN

References:  26

Cited by:  1

Codes

  • NII Article ID (NAID)
    10008300403
  • NII NACSIS-CAT ID (NCID)
    AA00691224
  • Text Lang
    ENG
  • Article Type
    Journal Article
  • ISSN
    0021521X
  • Data Source
    CJP  CJPref  IR  J-STAGE 
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