Cited by 153Circadian rhythm and melatoninHeart Rate Variability and Autonomic ControlCardiac electrophysiology and arrhythmias

Physiological and anatomic evidence for regulation of the heart by suprachiasmatic nucleus in rats

Scheer, F. A. J. L., Ter Horst, G. J., van der Vliet, J., Buijs, R. M.·2001·American Journal of Physiology-Heart and Circulatory Physiology

Abstract

The suprachiasmatic nucleus (SCN) is the mammalian biological clock that generates the daily rhythms in physiology and behavior. Light can phase shift the rhythm of the SCN but can also acutely affect SCN activity and output, e.g., output to the pineal. Recently, multisynaptic SCN connections to other organs were also demonstrated. Moreover, they were shown to affect those organs functionally. The aim of the present study was to investigate the role of the SCN in the regulation of the heart. First, we demonstrated that heart rate (HR) in SCN-intact, but not SCN-lesioned (SCNx), male Wistar rats had a clear circadian rhythm, which was not caused by locomotor activity. Second, we demonstrated that light at night reduces HR in intact but not in SCNx rats. Finally, we demonstrated the presence of a multisynaptic autonomic connection from SCN neurons to the heart with the retrograde pseudorabies virus tracing technique. Together, these results demonstrate that the SCN affects the heart in rats and suggest that this is mediated by a neuronal mechanism.

Integrity signals

Registry

Crossref · 10.1152/ajpheart.2001.280.3.h1391

Cites

37 of 37 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • The SCN may modulate cardiovascular functioning, as suggested by multisynaptic projections from the SCN to the heart and organs that regulate cardiovascular function through hormones and blood volume regulation.

    “That the SCN may modulate cardiovascular functioning is suggested by the presence of multisynaptic projections from the SCN to the heart and organs that regulate cardiovascular function through hormones and blood volume regulation (e.g., adrenal cortex, adrenal medulla, and kidneys”

    From The impact of the circadian timing system on cardiovascular and metabolic function (2012) · cites this paper as Scheer et al., 2001

  • In rats, there is a circadian rhythm in resting heart rate under constant dark conditions, independent of the circadian rhythm in behavioral activity.

    “In rats, there is also a circadian rhythm in resting heart rate under constant dark conditions, thus even independent of the circadian rhythm in behavioral activity”

    From The impact of the circadian timing system on cardiovascular and metabolic function (2012) · cites this paper as Scheer et al., 2001

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Scheer, F. A. J. L., Ter Horst, G. J., van der Vliet, J., & Buijs, R. M.
Affiliations
  • Netherlands Institute for Neuroscience (NL)
  • Department of Biological Psychiatry, University and Academic Hospital of Groningen, 9700 RB Groningen, The Netherlands
  • Department of Hypothalamic Integration Mechanisms, Netherlands Institute for Brain Research, 1105 AZ Amsterdam; and
Venue
American Journal of Physiology-Heart and Circulatory Physiology
Published
2001-03-01
Volume
280
Issue
3
Pages
H1391-H1399
ISSN
  • 0363-6135 (ISSN-L)
  • 1522-1539
OpenAlex
W2400609677
Cited by
153
References
37
Citations by year
2026: 2 · 2025: 9 · 2024: 7 · 2023: 4 · 2022: 7 · 2021: 7 · 2020: 4 · 2019: 3 · 2018: 1 · 2017: 6 · 2016: 7 · 2015: 6 · 2014: 13 · 2013: 12 · 2012: 7
FWCI
2.23
Type
journal article
Language
en
Open access
closed
Locations
  • American Journal of Physiology-Heart and Circulatory Physiology (publishedVersion)
  • PubMed (publishedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
  • KNAW Research Portal (The Royal Netherlands Academy of Arts and Sciences) (submittedVersion)
  • University of Groningen research database (University of Groningen / Centre for Information Technology) (submittedVersion)
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Heart Rate Variability and Autonomic Control
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiac electrophysiology and arrhythmias
Keywords
suprachiasmatic nucleus, circadian rhythm, heart rate, autonomic regulation of the heart, light at night, SCN lesions, pineal gland, biological clock
MeSH terms
Animals, Autonomic Nervous System, Circadian Rhythm, Heart, Heart Rate, Lighting, Male, Herpesvirus 1, Suid, Suprachiasmatic Nucleus, Rats, Wistar, Rats

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review