Differential expressions of mPer1 and mPer2 mRNAs under a skeleton photoperiod and a complete light-dark cycle.

Differential expressions of mPer1 and mPer2 mRNAs under a skeleton photoperiod and a complete light-dark cycle. Research Abstract Details 

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Differential expressions of mPer1 and mPer2 mRNAs under a skeleton photoperiod and a complete light-dark cycle. Abstract Text:

Katsutaka Oishi,Hiromi Fukui,Katsuhiko Sakamoto,Koyomi Miyazaki,Hisato Kobayashi,Norio Ishida,

To investigate the molecular mechanisms in photo-entrainment of circadian rhythms, expression patterns of mouse period1 (mPer1) and mPer2 mRNAs were examined in the suprachiasmatic nucleus (SCN) and skin under a complete light-dark (LD) cycle and a corresponding skeleton photoperiod (SPP). Under the SPP, the robust daily expressions of mPer1 and mPer2 were maintained in the SCN and in the skin. A slower rise time for mPer1 mRNA expression was observed in the SPP compared with that in the LD condition both in the SCN and in the skin, although the expression pattern of mPer2 was not significantly different between the two lighting conditions. The results suggest that the expressions of mPer1 and mPer2 mRNAs are differentially regulated not only in the SCN but also in peripheral tissues. Furthermore, we propose that the persistent expression of mPer2 mRNA is required for the entrainment to the SPP.

Differential expressions of mPer1 and mPer2 mRNAs under a skeleton photoperiod and a complete light-dark cycle. Publishing Authors By Initials

K Oishi,H Fukui,K Sakamoto,K Miyazaki,H Kobayashi,N Ishida,

For similar proteins: transcription factors research abstracts see: proteins: transcription factors research

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Differential expressions of mPer1 and mPer2 mRNAs under a skeleton photoperiod and a complete light-dark cycle. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Brain research. Molecular brain research

VOLUME: 109

Page Numbers: 11-7

Journal Abbreviation: Brain Res. Mol. Brain Res.

ISSN: 0169-328X

DAY: 30

MONTH: Dec

YEAR: 2002

Differential expressions of mPer1 and mPer2 mRNAs under a skeleton photoperiod and a complete light-dark cycle. Information

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LANGUAGE: eng

NlmUniqueID: 8908640

Differential expressions of mPer1 and mPer2 mRNAs under a skeleton photoperiod and a complete light-dark cycle. Keywords Mesh Terms:

KEYWORDS: Transcription Factors

MESH TERMS: metabolism

Chemical & Substance for Abstract: Differential expressions of mPer1 and mPer2 mRNAs under a skeleton photoperiod and a complete light-dark cycle. Information

Substance Name: Transcription Factors

Registry Number: 0

Grant and Affiliation Information for Differential expressions of mPer1 and mPer2 mRNAs under a skeleton photoperiod and a complete light-dark cycle.

AFFILIATION: Clock Cell Biology Group, National Institute of Advanced Industrial Science and Technology, Central 6, 1-1-1, Higashi, Tsukuba, Ibaraki 305-8566, Japan.

Country: Netherlands

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MEDLINETA: Brain Res Mol Brain Res

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