Cited by 56Circadian rhythm and melatoninNeuropeptides and Animal PhysiologyHypothalamic control of reproductive hormones

Bicuculline blocks neuropeptide Y-induced phase advances when microinjected in the suprachiasmatic nucleus of Syrian-hamsters

Huhman, K.L., Babagbemi, T.O., Albers, H.E.·1995·Brain Research

Abstract

Microinjection of neuropeptide Y (NPY) into the suprachiasmatic nucleus of the hypothalamus (SCN) during the middle of the subjective day (i.e. circadian time 6) causes large phase advances in circadian rhythms. The present study demonstrates that microinjection of the gamma-aminobutyric acid (GABA) antagonist, bicuculline, completely blocks NPY-induced phase advances. These data indicate that GABAA activity within the SCN may mediate the phase shifting effects of some stimuli on the circadian pacemaker.

Integrity signals

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Crossref · 10.1016/0006-8993(95)00018-l

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23 of 23 references verified0 citation errors · 0 not checkable

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Authors
Huhman, K. L., Babagbemi, T. O., & Albers, H. E.
Affiliations
Georgia State University (US)
Corresponding author
Huhman, K.L.
Venue
Brain Research
Publisher
Elsevier BV
Published
1995-03
Volume
675
Issue
1-2
Pages
333-336
ISSN
0006-8993 (ISSN-L)
OpenAlex
W2147933292
Cited by
56
References
23
Citations by year
2022: 1 · 2020: 1 · 2019: 1 · 2018: 1 · 2017: 2 · 2016: 1 · 2012: 1
FWCI
2.84
Type
journal article
Language
en
Open access
closed
Locations
  • Brain Research (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (NS30022)
  • National Institute of Mental Health (MH10178)
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuropeptides and Animal Physiology
  • Health Sciences › Medicine › Reproductive Medicine › Hypothalamic control of reproductive hormones
Keywords
neuropeptide Y, bicuculline, suprachiasmatic nucleus, circadian phase shift, GABAA receptor, circadian pacemaker, hypothalamus, golden hamster
MeSH terms
Animals, Bicuculline, Cricetinae, Male, Mesocricetus, Microinjections, Neuropeptide Y, Receptors, GABA-A, Regression Analysis, Suprachiasmatic Nucleus, GABA-A Receptor Antagonists

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