Spontaneous circadian and light-induced expression of junB mRNA in the hamster suprachiasmatic nucleus

Mario E. Guido; Benjamin Rusak; Harold A. Robertson

doi:10.1016/0006-8993(96)00526-4

Spontaneous circadian and light-induced expression of junB mRNA in the hamster suprachiasmatic nucleus

Mario E. Guido, Benjamin Rusak, Harold A. Robertson

Medicine

Medicine

Research output: Contribution to journal › Article › peer-review

21 Citations (Scopus)

Abstract

We examined both spontaneous and light-evoked expression of junB mRNA in the hamster suprachiasmatic nucleus (SCN), an endogenous circadian pacemaker. junB was expressed in the SCN in response to a light pulse during the subjective night and early subjective day as well as spontaneously during the transition from subjective night to subjective day. Light-evoked expression was strongest in the ventral SCN, while spontaneous expression was stronger in the dorsal SCN. Spontaneous expression began around subjective dawn and persisted for at least 4 h into the subjective day. The expression of junB mRNA may play a role in both phase-shifting responses to light and in spontaneous oscillation of the SCN pacemaker.

Original language	English
Pages (from-to)	215-222
Number of pages	8
Journal	Brain Research
Volume	732
Issue number	1-2
DOIs	https://doi.org/10.1016/0006-8993(96)00526-4
Publication status	Published - Sept 2 1996

Bibliographical note

Funding Information:
We are grateful to Donna Goguen, Victoria Muise, Kay Murphy and Marc Peterson for their excellent technical assistance. Supported by grants from the Medical Research Council of Canada (MA8929; MT10644), and a postdoctoral fellowship (M.E.G.) from CONICET of Argentina.

ASJC Scopus Subject Areas

General Neuroscience
Molecular Biology
Clinical Neurology
Developmental Biology

PubMed: MeSH publication types

Journal Article
Research Support, Non-U.S. Gov't

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10.1016/0006-8993(96)00526-4

Cite this

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title = "Spontaneous circadian and light-induced expression of junB mRNA in the hamster suprachiasmatic nucleus",

abstract = "We examined both spontaneous and light-evoked expression of junB mRNA in the hamster suprachiasmatic nucleus (SCN), an endogenous circadian pacemaker. junB was expressed in the SCN in response to a light pulse during the subjective night and early subjective day as well as spontaneously during the transition from subjective night to subjective day. Light-evoked expression was strongest in the ventral SCN, while spontaneous expression was stronger in the dorsal SCN. Spontaneous expression began around subjective dawn and persisted for at least 4 h into the subjective day. The expression of junB mRNA may play a role in both phase-shifting responses to light and in spontaneous oscillation of the SCN pacemaker.",

author = "Guido, {Mario E.} and Benjamin Rusak and Robertson, {Harold A.}",

note = "Funding Information: We are grateful to Donna Goguen, Victoria Muise, Kay Murphy and Marc Peterson for their excellent technical assistance. Supported by grants from the Medical Research Council of Canada (MA8929; MT10644), and a postdoctoral fellowship (M.E.G.) from CONICET of Argentina.",

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T1 - Spontaneous circadian and light-induced expression of junB mRNA in the hamster suprachiasmatic nucleus

AU - Guido, Mario E.

AU - Rusak, Benjamin

AU - Robertson, Harold A.

N1 - Funding Information: We are grateful to Donna Goguen, Victoria Muise, Kay Murphy and Marc Peterson for their excellent technical assistance. Supported by grants from the Medical Research Council of Canada (MA8929; MT10644), and a postdoctoral fellowship (M.E.G.) from CONICET of Argentina.

PY - 1996/9/2

Y1 - 1996/9/2

N2 - We examined both spontaneous and light-evoked expression of junB mRNA in the hamster suprachiasmatic nucleus (SCN), an endogenous circadian pacemaker. junB was expressed in the SCN in response to a light pulse during the subjective night and early subjective day as well as spontaneously during the transition from subjective night to subjective day. Light-evoked expression was strongest in the ventral SCN, while spontaneous expression was stronger in the dorsal SCN. Spontaneous expression began around subjective dawn and persisted for at least 4 h into the subjective day. The expression of junB mRNA may play a role in both phase-shifting responses to light and in spontaneous oscillation of the SCN pacemaker.

AB - We examined both spontaneous and light-evoked expression of junB mRNA in the hamster suprachiasmatic nucleus (SCN), an endogenous circadian pacemaker. junB was expressed in the SCN in response to a light pulse during the subjective night and early subjective day as well as spontaneously during the transition from subjective night to subjective day. Light-evoked expression was strongest in the ventral SCN, while spontaneous expression was stronger in the dorsal SCN. Spontaneous expression began around subjective dawn and persisted for at least 4 h into the subjective day. The expression of junB mRNA may play a role in both phase-shifting responses to light and in spontaneous oscillation of the SCN pacemaker.

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Spontaneous circadian and light-induced expression of junB mRNA in the hamster suprachiasmatic nucleus

Abstract

Bibliographical note

ASJC Scopus Subject Areas

PubMed: MeSH publication types

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