The Network Mechanism of the Central Circadian Pacemaker of the SCN: Do AVP Neurons Play a More Critical Role Than Expected?

The suprachiasmatic nucleus (SCN) functions as the central circadian pacemaker in mammals and entrains to the environmental light/dark cycle. It is composed of multiple types of GABAergic neurons, and interneuronal communications among these neurons are essential for the circadian pacemaking of the...

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Main Author: Michihiro Mieda
Format: Article
Language:English
Published: Frontiers Media S.A. 2019-02-01
Series:Frontiers in Neuroscience
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fnins.2019.00139/full
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author Michihiro Mieda
author_facet Michihiro Mieda
author_sort Michihiro Mieda
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description The suprachiasmatic nucleus (SCN) functions as the central circadian pacemaker in mammals and entrains to the environmental light/dark cycle. It is composed of multiple types of GABAergic neurons, and interneuronal communications among these neurons are essential for the circadian pacemaking of the SCN. However, the mechanisms underlying the SCN neuronal network remain unknown. This review will provide a brief overview of the current knowledge concerning the differential roles of multiple neuropeptides and neuropeptide-expressing neurons in the SCN, especially focusing on the emerging roles of arginine vasopressin-producing neurons uncovered by recent studies utilizing neuron type-specific genetic manipulations in mice.
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spelling doaj.art-8c79982e2a114d4aa7a49aded1071c1f2022-12-22T01:49:32ZengFrontiers Media S.A.Frontiers in Neuroscience1662-453X2019-02-011310.3389/fnins.2019.00139441668The Network Mechanism of the Central Circadian Pacemaker of the SCN: Do AVP Neurons Play a More Critical Role Than Expected?Michihiro MiedaThe suprachiasmatic nucleus (SCN) functions as the central circadian pacemaker in mammals and entrains to the environmental light/dark cycle. It is composed of multiple types of GABAergic neurons, and interneuronal communications among these neurons are essential for the circadian pacemaking of the SCN. However, the mechanisms underlying the SCN neuronal network remain unknown. This review will provide a brief overview of the current knowledge concerning the differential roles of multiple neuropeptides and neuropeptide-expressing neurons in the SCN, especially focusing on the emerging roles of arginine vasopressin-producing neurons uncovered by recent studies utilizing neuron type-specific genetic manipulations in mice.https://www.frontiersin.org/article/10.3389/fnins.2019.00139/fullcircadian rhythmsuprachiasmatic nucleusvasopressinvasoactive intestinal peptideneural network
spellingShingle Michihiro Mieda
The Network Mechanism of the Central Circadian Pacemaker of the SCN: Do AVP Neurons Play a More Critical Role Than Expected?
Frontiers in Neuroscience
circadian rhythm
suprachiasmatic nucleus
vasopressin
vasoactive intestinal peptide
neural network
title The Network Mechanism of the Central Circadian Pacemaker of the SCN: Do AVP Neurons Play a More Critical Role Than Expected?
title_full The Network Mechanism of the Central Circadian Pacemaker of the SCN: Do AVP Neurons Play a More Critical Role Than Expected?
title_fullStr The Network Mechanism of the Central Circadian Pacemaker of the SCN: Do AVP Neurons Play a More Critical Role Than Expected?
title_full_unstemmed The Network Mechanism of the Central Circadian Pacemaker of the SCN: Do AVP Neurons Play a More Critical Role Than Expected?
title_short The Network Mechanism of the Central Circadian Pacemaker of the SCN: Do AVP Neurons Play a More Critical Role Than Expected?
title_sort network mechanism of the central circadian pacemaker of the scn do avp neurons play a more critical role than expected
topic circadian rhythm
suprachiasmatic nucleus
vasopressin
vasoactive intestinal peptide
neural network
url https://www.frontiersin.org/article/10.3389/fnins.2019.00139/full
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