Cited by 114Heart Rate Variability and Autonomic ControlCardiovascular, Neuropeptides, and Oxidative Stress ResearchNitric Oxide and Endothelin Effects

The influence of the sympathetic impulse pattern on contractile responses of rat mesenteric arteries and veins

NILSSON, H., LJUNG, B., SjÖBLOM, N., Wallin, B. G.·1985·Acta Physiologica Scandinavica

Abstract

Contractile responses to electrical field stimulation of excised small mesenteric arteries and veins of the rat were compared when stimuli were delivered in irregular bursts or at regular intervals. Spontaneously occurring skin vasoconstrictor impulses in a few‐unit median nerve recording in man were stored on tape and used to trigger a stimulator. Two irregular stimulation sequences at average frequencies of 1.6 and 1.8 Hz, respectively, were used. In the arteries, average contractile responses were significantly greater at an irregular than at an even stimulation frequency, but in the veins, similar degrees of contraction were obtained with the two modes of stimulation. The frequency‐response relationships to continuous regular stimulation showed the artery to respond less than the vein at low frequencies. This apparently explains the difference in behaviour between the vessels to irregular stimulation. The results show that not only the number of impulses, but also their pattern of occurrence, may influence the degree of vasoconstriction. Thus, the normal irregular sympathetic discharge pattern in itself has a bearing on the physiology of neuro‐effector control mechanisms.

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Registry

Crossref · 10.1111/j.1748-1716.1985.tb07592.x

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Authors
NILSSON, H., LJUNG, B., SjÖBLOM, N., & Wallin, B. G.
Affiliations
  • University of Gothenburg (SE)
  • Uppsala University Hospital (SE)
Corresponding author
NILSSON, H.
Venue
Acta Physiologica Scandinavica
Publisher
Wiley
Published
1985-03
Volume
123
Issue
3
Pages
303-309
ISSN
  • 0001-6772 (ISSN-L)
  • 1365-201X
OpenAlex
W2092668132
Cited by
114
References
27
Citations by year
2026: 3 · 2024: 1 · 2023: 2 · 2021: 3 · 2020: 4 · 2019: 2 · 2018: 1 · 2017: 4 · 2016: 1 · 2015: 3 · 2014: 2 · 2013: 2 · 2012: 4
FWCI
5.24
Type
journal article
Language
en
Open access
closed
Locations
  • Acta Physiologica Scandinavica (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Heart Rate Variability and Autonomic Control
  • Health Sciences › Medicine › Surgery › Cardiovascular, Neuropeptides, and Oxidative Stress Research
  • Health Sciences › Medicine › Physiology › Nitric Oxide and Endothelin Effects
Keywords
sympathetic activity, vasoconstriction, mesenteric arteries, mesenteric veins, electrical field stimulation, stimulation frequency, median nerve, vascular contractility
MeSH terms
Animals, Electric Stimulation, Male, Mesenteric Arteries, Mesenteric Veins, Synaptic Transmission, Rats, Inbred Strains, Sympathetic Nervous System, Vasoconstriction, Vasomotor System, Rats

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