Phase shifting the circadian clock with cycloheximide: response of hamster with an intact or a split rhythm of locomotor activity

Franziska Wollnik, Fred W. Turek, Philip Majewski, Joseph S. Takahashi

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Systematic administration of the protein synthesis inhibitor, cycloheximide, induced both phase advances and phase delays in the circadian rhythm of wheel-running activity in hamsters (Mesocricetus auratus) maintained in constant darkness or constant light. The magnitude and direction of the phase shifts were dependent on the circadian time (CT) of drug treatment. The phase response curves in constant darkness and constant light were of similar general shape, but they differed in the overall mean amplitude of the phase shifts. Maximal phase advances were observed after injections around CT 6-8, maximal delays at CT 0-2. Injections of various doses of cycloheximide at CT 0 induced a dose-dependent phase delay in the rhythm with a maximum delay induced by 10 mg cycloheximide. Injections of cycloheximide in animals with a split activity rhythm caused phase shifts of both components in the same direction (20/39) and in different directions (10/39). The results support the hypothesis that 80S ribosomal protein synthesis plays an important role in the biochemical mechanisms of circadian systems.

Original languageEnglish (US)
Pages (from-to)82-88
Number of pages7
JournalBrain Research
Volume496
Issue number1-2
DOIs
StatePublished - Sep 4 1989

Fingerprint

Circadian Clocks
Cycloheximide
Locomotion
Cricetinae
Darkness
Injections
Light
Protein Synthesis Inhibitors
Mesocricetus
Protein Biosynthesis
Circadian Rhythm
Running
Pharmaceutical Preparations
Direction compound
Therapeutics

Keywords

  • Circadian rhythm
  • Cycloheximide
  • Hamster
  • Phase response curve
  • Protein synthesis

ASJC Scopus subject areas

  • Developmental Biology
  • Molecular Biology
  • Clinical Neurology
  • Neuroscience(all)

Cite this

Phase shifting the circadian clock with cycloheximide : response of hamster with an intact or a split rhythm of locomotor activity. / Wollnik, Franziska; Turek, Fred W.; Majewski, Philip; Takahashi, Joseph S.

In: Brain Research, Vol. 496, No. 1-2, 04.09.1989, p. 82-88.

Research output: Contribution to journalArticle

@article{7b613136fcba488795985c1334a9ea03,
title = "Phase shifting the circadian clock with cycloheximide: response of hamster with an intact or a split rhythm of locomotor activity",
abstract = "Systematic administration of the protein synthesis inhibitor, cycloheximide, induced both phase advances and phase delays in the circadian rhythm of wheel-running activity in hamsters (Mesocricetus auratus) maintained in constant darkness or constant light. The magnitude and direction of the phase shifts were dependent on the circadian time (CT) of drug treatment. The phase response curves in constant darkness and constant light were of similar general shape, but they differed in the overall mean amplitude of the phase shifts. Maximal phase advances were observed after injections around CT 6-8, maximal delays at CT 0-2. Injections of various doses of cycloheximide at CT 0 induced a dose-dependent phase delay in the rhythm with a maximum delay induced by 10 mg cycloheximide. Injections of cycloheximide in animals with a split activity rhythm caused phase shifts of both components in the same direction (20/39) and in different directions (10/39). The results support the hypothesis that 80S ribosomal protein synthesis plays an important role in the biochemical mechanisms of circadian systems.",
keywords = "Circadian rhythm, Cycloheximide, Hamster, Phase response curve, Protein synthesis",
author = "Franziska Wollnik and Turek, {Fred W.} and Philip Majewski and Takahashi, {Joseph S.}",
year = "1989",
month = "9",
day = "4",
doi = "10.1016/0006-8993(89)91053-6",
language = "English (US)",
volume = "496",
pages = "82--88",
journal = "Brain Research",
issn = "0006-8993",
publisher = "Elsevier",
number = "1-2",

}

TY - JOUR

T1 - Phase shifting the circadian clock with cycloheximide

T2 - response of hamster with an intact or a split rhythm of locomotor activity

AU - Wollnik, Franziska

AU - Turek, Fred W.

AU - Majewski, Philip

AU - Takahashi, Joseph S.

PY - 1989/9/4

Y1 - 1989/9/4

N2 - Systematic administration of the protein synthesis inhibitor, cycloheximide, induced both phase advances and phase delays in the circadian rhythm of wheel-running activity in hamsters (Mesocricetus auratus) maintained in constant darkness or constant light. The magnitude and direction of the phase shifts were dependent on the circadian time (CT) of drug treatment. The phase response curves in constant darkness and constant light were of similar general shape, but they differed in the overall mean amplitude of the phase shifts. Maximal phase advances were observed after injections around CT 6-8, maximal delays at CT 0-2. Injections of various doses of cycloheximide at CT 0 induced a dose-dependent phase delay in the rhythm with a maximum delay induced by 10 mg cycloheximide. Injections of cycloheximide in animals with a split activity rhythm caused phase shifts of both components in the same direction (20/39) and in different directions (10/39). The results support the hypothesis that 80S ribosomal protein synthesis plays an important role in the biochemical mechanisms of circadian systems.

AB - Systematic administration of the protein synthesis inhibitor, cycloheximide, induced both phase advances and phase delays in the circadian rhythm of wheel-running activity in hamsters (Mesocricetus auratus) maintained in constant darkness or constant light. The magnitude and direction of the phase shifts were dependent on the circadian time (CT) of drug treatment. The phase response curves in constant darkness and constant light were of similar general shape, but they differed in the overall mean amplitude of the phase shifts. Maximal phase advances were observed after injections around CT 6-8, maximal delays at CT 0-2. Injections of various doses of cycloheximide at CT 0 induced a dose-dependent phase delay in the rhythm with a maximum delay induced by 10 mg cycloheximide. Injections of cycloheximide in animals with a split activity rhythm caused phase shifts of both components in the same direction (20/39) and in different directions (10/39). The results support the hypothesis that 80S ribosomal protein synthesis plays an important role in the biochemical mechanisms of circadian systems.

KW - Circadian rhythm

KW - Cycloheximide

KW - Hamster

KW - Phase response curve

KW - Protein synthesis

UR - http://www.scopus.com/inward/record.url?scp=0024315012&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0024315012&partnerID=8YFLogxK

U2 - 10.1016/0006-8993(89)91053-6

DO - 10.1016/0006-8993(89)91053-6

M3 - Article

C2 - 2679970

AN - SCOPUS:0024315012

VL - 496

SP - 82

EP - 88

JO - Brain Research

JF - Brain Research

SN - 0006-8993

IS - 1-2

ER -