Cited by 21Blood Pressure and Hypertension StudiesHeart Rate Variability and Autonomic ControlCardiovascular and exercise physiology

Evidence against elevated sympathetic vasoconstrictor activity in borderline hypertension.

Schobel, H P, Heusser, K, Schmieder, R E, Veelken, R, Fischer, T, Luft, F C·1998·Journal of the American Society of Nephrology

Abstract

The relationship between sympathetic nerve activity and BP in the early stages of essential hypertension remains unclear. To investigate this relationship further, this study measured resting muscle sympathetic nerve activity (MSNA: representing peripheral vasoconstrictor activity), plasma catecholamines, BP, central venous pressure, and heart rate in 20 young (24 +/- 2 SD yr), lean (body mass index, 24.2 +/- 3.0 kg/m2), male subjects with borderline hypertension (BHT) and in 21 male normotensive (NT) control subjects matched for age and body mass index. A cold pressor test was also performed to evaluate sympathetic reflex responsiveness. Resting mean BP and heart rate were significantly higher in the BHT subjects compared with NT subjects (113 +/- 9 versus 89 +/- 9 mmHg; 74 +/- 8 versus 62 +/- 8 bpm; P < 0.0001 each) with no difference in central venous pressure. Resting MSNA levels tended to be lower in the BHT versus the NT group (12 +/- 6 versus 14 +/- 9 bursts/min, P = NS; 16 +/- 8 versus 22 +/- 13 bursts/100 heartbeats, P = 0.05) and did not correlate with either BP or body mass index. Significant positive correlations were found between resting MSNA and plasma norepinephrine levels in both groups (P < 0.05). Hemodynamic and sympathetic nerve responses to the cold pressor test were similar between the BHT and NT subjects. It is concluded that resting MSNA and plasma norepinephrine levels are correlated in young lean NT and BHT men; however, neither of these variables is correlated with BP. Because MSNA was similar in the two groups, the concept that augmented resting MSNA is important in the early developmental phase of essential hypertension must be reevaluated.

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Crossref · 10.1681/asn.v991581

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  • Although there are exceptions, the weight of evidence suggests that in the early stages of hypertension, particularly in young patients, there is marked adrenergic overdrive.

    “Although there are several exception34,35, the weight of evidence suggest that in the early stages of hypertension, particularly in young patients, there is marked adrenergic overdrive, a finding that supports the hypothesis that sympathetic overactivity occurs in the clinical phases of essential hypertension.”

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Authors
Schobel, H. P., Heusser, K., Schmieder, R. E., Veelken, R., Fischer, T., & Luft, F. C.
Affiliations
Friedrich-Alexander-Universität Erlangen-Nürnberg (DE)
Venue
Journal of the American Society of Nephrology
Published
1998-09
Volume
9
Issue
9
Pages
1581-1587
ISSN
1046-6673 (ISSN-L)
OpenAlex
W2138489245
Cited by
21
References
35
Citations by year
2025: 1 · 2020: 2 · 2018: 2 · 2015: 2 · 2013: 2
FWCI
0.26
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of the American Society of Nephrology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Blood Pressure and Hypertension Studies
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Heart Rate Variability and Autonomic Control
  • Health Sciences › Medicine › Complementary and alternative medicine › Cardiovascular and exercise physiology
Keywords
borderline hypertension, muscle sympathetic nerve activity, vasoconstrictor activity, plasma norepinephrine, catecholamines, blood pressure, cold pressor test, central venous pressure, heart rate, essential hypertension
MeSH terms
Adult, Blood Pressure Determination, Central Venous Pressure, Heart Rate, Hemodynamics, Humans, Hypertension, Male, Norepinephrine, Peroneal Nerve, Reference Values, Regression Analysis, Stress, Physiological, Sympathetic Nervous System, Vasoconstriction, Body Mass Index, Muscle, Skeletal

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