Cited by 244Circadian rhythm and melatoninRegulation of Appetite and ObesityPancreatic function and diabetes

Suprachiasmatic GABAergic inputs to the paraventricular nucleus control plasma glucose concentrations in the rat via sympathetic innervation of the liver

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Kalsbeek, Andries, La Fleur, Susanne, Van Heijningen, Caroline, Buijs, Ruud M.·2004·The Journal of Neuroscience

Abstract

Daily peak plasma glucose concentrations are attained shortly before awakening. Previous experiments indicated an important role for the biological clock, located in the suprachiasmatic nuclei (SCN), in the genesis of this anticipatory rise in plasma glucose concentrations by controlling hepatic glucose production. Here, we show that stimulation of NMDA receptors, or blockade of GABA receptors in the paraventricular nucleus of the hypothalamus (PVN) of conscious rats, caused a pronounced increase in plasma glucose concentrations. The local administration of TTX in brain areas afferent to the PVN revealed that an important part of the inhibitory inputs to the PVN was derived from the SCN. Using a transneuronal viral-tracing technique, we showed that the SCN is connected to the liver via both branches of the autonomic nervous system (ANS). The combination of a blockade of GABA receptors in the PVN with selective removal of either the sympathetic or parasympathetic branch of the hepatic ANS innervation showed that hyperglycemia produced by PVN stimulation was primarily attributable to an activation of the sympathetic input to the liver. We propose that the daily rise in plasma glucose concentrations is caused by an SCN-mediated withdrawal of GABAergic inputs to sympathetic preautonomic neurons in the PVN, resulting in an increased hepatic glucose production. The remarkable resemblance of the presently proposed control mechanism to that described previously for the control of daily melatonin rhythm suggests that the GABAergic control of sympathetic preautonomic neurons in the PVN is an important pathway for the SCN to control peripheral physiology.

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Crossref · 10.1523/jneurosci.5328-03.2004

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  • Anatomical tracing experiments revealed synaptic connections between the SCN and the liver via the autonomic nervous system.

    “Interestingly, our anatomical tracing experiments revealed synaptic connections between the SCN and the liver, via the autonomic nervous system (ANS) [62,63].”

    From Circadian control of glucose metabolism (2014) · cites this paper as [63]

  • The SCN needs an intact sympathetic innervation of the liver to generate a daily rhythm in plasma glucose concentrations.

    “From these studies it became clear that the SCN does indeed need an intact sympathetic innervation of the liver to generate a daily rhythm in plasma glucose concentrations [63,66].”

    From Circadian control of glucose metabolism (2014) · cites this paper as [63]

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Authors
Kalsbeek, A., La Fleur, S., Van Heijningen, C., & Buijs, R. M.
Corresponding author
Kalsbeek, Andries
Venue
The Journal of Neuroscience
Published
2004-09-01
Volume
24
Issue
35
Pages
7604-7613
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W2151484167
Cited by
244
References
65
Citations by year
2026: 3 · 2025: 5 · 2024: 8 · 2023: 9 · 2022: 10 · 2021: 13 · 2020: 13 · 2019: 8 · 2018: 14 · 2017: 14 · 2016: 13 · 2015: 16 · 2014: 11 · 2013: 16 · 2012: 14
FWCI
2.43
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion, cc-by-nc-sa)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Pure Amsterdam UMC (publishedVersion)
  • KNAW Research Portal (The Royal Netherlands Academy of Arts and Sciences) (publishedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
  • KNAW research portal (Royal Academy of Art and Sciences (KNAW)) (submittedVersion)
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Regulation of Appetite and Obesity
  • Health Sciences › Medicine › Surgery › Pancreatic function and diabetes
Keywords
suprachiasmatic nucleus, paraventricular nucleus, GABAergic inhibition, plasma glucose, hepatic glucose production, NMDA receptor, circadian rhythm, melatonin rhythm
MeSH terms
Animals, Axonal Transport, Bicuculline, Blood Glucose, Circadian Rhythm, Clonidine, Corticosterone, gamma-Aminobutyric Acid, Glucagon, Gluconeogenesis, Hyperglycemia, Hypothalamus, Insulin, Isoproterenol, Liver, Male, Muscimol, Norepinephrine, Parasympathetic Nervous System, Paraventricular Hypothalamic Nucleus, Herpesvirus 1, Suid, Suprachiasmatic Nucleus, Sympathectomy, Sympathetic Nervous System, Tetrodotoxin, Vasopressins, N-Methylaspartate, Rats, Wistar, Microdialysis, Parasympathectomy, Rats

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