Influence of environmental light-dark cycle and enucleation on activity of suprachiasmatic neurons in slice preparations

Shigenobu Shibata, Yuh Liou Shyh, Showa Ueki, Yutaka Oomura

研究成果: Article

91 引用 (Scopus)

抄録

The influence of environmental light-dark cycle (LD) and bilateral enucleation on single neuronal activity in the suprachiasmatic nucleus (SCN) was examined using a hypothalamic slice preparation. Firstly, we reconfirmed previous results that the discharge rate in slices taken from animals kept on normal LD was higher during the light than during the dark period. Secondly, the day time discharge rate in the ventrolateral part of the SCN was decreased by bilateral enucleation and DD housing, while in the dorsomedial part it was unaffected. Thirdly, LL housing suppressed the discharge rates in both parts during the day and night periods. The present results suggest that the dorsomedial part of the SCN is more important in regulation of the circadian rhythm of SCN neuronal activity than the ventrolateral.

元の言語English
ページ(範囲)75-81
ページ数7
ジャーナルBrain Research
302
発行部数1
DOI
出版物ステータスPublished - 1984 6 4
外部発表Yes

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Suprachiasmatic Nucleus
Photoperiod
Neurons
Circadian Rhythm
Light

ASJC Scopus subject areas

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

これを引用

Influence of environmental light-dark cycle and enucleation on activity of suprachiasmatic neurons in slice preparations. / Shibata, Shigenobu; Shyh, Yuh Liou; Ueki, Showa; Oomura, Yutaka.

:: Brain Research, 巻 302, 番号 1, 04.06.1984, p. 75-81.

研究成果: Article

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