Cited by 65Heart Rate Variability and Autonomic ControlBlood Pressure and Hypertension StudiesCardiovascular Syncope and Autonomic Disorders

Reduced baroreflex changes in muscle sympathetic nerve activity during blood pressure elevation in essential hypertension

Matsukawa, Toshiyoshi, Gotoh, Eiji, Hasegawa, Osamu, Shionoiri, Hiroshi, Tochikubo, Osamu, Ishii, Masao·1991·Journal of Hypertension

Abstract

To determine whether the baroreflex control of sympathetic nerve activity is altered in patients with essential hypertension, muscle sympathetic nerve activity (MSNA) was recorded microneurographically from the tibial nerves of 23 normotensive subjects and 23 patients with essential hypertension. When phenylephrine (2 micrograms/kg) was injected intravenously, although the pressor response of mean arterial blood pressure (MAP) was significantly enhanced in the hypertensives as compared with the normotensives, the reflex decrease in MSNA was significantly smaller in the hypertensives. Furthermore, the baroreflex slope for MSNA, used as an index of baroreflex sensitivity and calculated by relating the change in MSNA to the change in MAP, was significantly less in the hypertensives. Following the injection of nitroglycerin (2 micrograms/kg), there were no significant differences between the normotensives and hypertensives in the depressor response, the reflex increase in MSNA or the baroreflex slope for MSNA. These observations suggest that the baroreflex change in sympathetic nerve activity is reduced during phenylephrine-induced blood pressure elevation but not during nitroglycerin-induced hypotension in the hypertensives, and that the blunted response of sympathetic nerve activity occurring during hypertension in these hypertensive patients may underlie the maintenance of high blood pressure in essential hypertension.

Integrity signals

Registry

Crossref · 10.1097/00004872-199106000-00009

Cites

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 results obtained from MSNA recordings in this study were similar to those previously published in age-comparable hypertensive subjects.

    “The results obtained from MSNA recordings in this study were similar to those previously published in age-comparable hypertensive subjects (15,16,25,26,28).”
  • Patients with hypertension have a greater frequency of MSNA bursts than properly matched normotensive subjects.

    “Despite the difficulty of establishing that every unit within a burst has a vasoconstrictor role, there is a wealth of evidence to suggest that patients with hypertension have a greater frequency of MSNA bursts than properly matched normotensive subjects (15,25–27).”

Cited by

Sorted by citations

Authors
Matsukawa, T., Gotoh, E., Hasegawa, O., Shionoiri, H., Tochikubo, O., & Ishii, M.
Affiliations
Yokohama City University (JP)
Venue
Journal of Hypertension
Published
1991-06
Volume
9
Issue
6
Pages
537-542
ISSN
0263-6352 (ISSN-L)
OpenAlex
W2049957143
Cited by
65
References
0
Citations by year
2025: 2 · 2024: 3 · 2023: 1 · 2022: 2 · 2021: 2 · 2020: 2 · 2019: 3 · 2018: 2 · 2017: 3 · 2016: 1 · 2015: 3 · 2014: 4 · 2013: 3 · 2012: 2
FWCI
0.73
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Hypertension (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Heart Rate Variability and Autonomic Control
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Blood Pressure and Hypertension Studies
  • Health Sciences › Medicine › Surgery › Cardiovascular Syncope and Autonomic Disorders
Keywords
essential hypertension, baroreflex sensitivity, muscle sympathetic nerve activity, sympathetic nervous system, blood pressure regulation, phenylephrine pressor response
MeSH terms
Adult, Blood Pressure, Female, Nitroglycerin, Humans, Hypertension, Male, Muscles, Phenylephrine, Pressoreceptors, Reflex, Sympathetic Nervous System, Tibial Nerve

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