Cited by 271Regulation of Appetite and ObesityAdipokines, Inflammation, and Metabolic DiseasesHypothalamic control of reproductive hormones

Interactions Between Leptin and the Human Sympathetic Nervous System

Eikelis, Nina, Schlaich, Markus, Aggarwal, Anuradha, Kaye, David, Esler, Murray·2003·Hypertension

Abstract

Results from animal experimentation suggest a 2-way interaction between leptin and the sympathetic nervous system, with leptin causing sympathetic activation and conversely, with the sympathetic system exercising regulatory feedback inhibition over leptin release. We have now tested this hypothesis in humans. In the absence of results from leptin infusions, to test for sympathetic stimulation of leptin release, we sought a quantitative naturalistic linkage of sympathetic activity with leptin plasma concentration across a broad range of leptin values in men of widely differing adiposity. Renal norepinephrine spillover was correlated with plasma leptin ( r =0.628, P <0.01), but other measures of sympathoadrenal function did not. To test for sympathetic and adrenomedullary inhibition of leptin release, we studied clinical models of high sympathetic tone, heart failure, and essential hypertension, in which lowered plasma leptin levels might have been expected but were not found; a model of low sympathetic activity, pure autonomic failure, in which plasma leptin level was normal (6.1±1.2 vs 12.8±3.1 ng/mL in healthy subjects); and a clinical model of reduced epinephrine secretion, healthy aging, in which plasma leptin level again was normal (5.7±1.1 ng/mL vs 4.0±0.9 ng/mL in men >60 years and <35 years, respectively). Paradoxically, leptin concentration was elevated in heart failure, caused entirely by reduced renal clearance of leptin release, 142.0±30.5 mL/min, compared with 56.9±18.9 mL/min ( P <0.05). These results provide some support for the view that leptin stimulates the sympathetic nervous system, at least for renal sympathetic outflow, but do not confirm the concept of regulatory feedback inhibition of leptin release by the sympathetic nervous system.

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Crossref · 10.1161/01.hyp.0000066289.17754.49

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  • Leptin may be a major driver of cardiovascular sympathetic activation in human obesity just like in experimental obesity.

    “These data combined with previous findings (46) suggest that leptin may be a major driver of cardiovascular sympathetic activation in human obesity just like in experimental obesity.”

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Authors
Eikelis, N., Schlaich, M., Aggarwal, A., Kaye, D., & Esler, M.
Affiliations
The Alfred Hospital (AU)
Venue
Hypertension
Published
2003-05
Volume
41
Issue
5
Pages
1072-1079
ISSN
  • 0194-911X (ISSN-L)
  • 1524-4563
OpenAlex
W2164701614
Cited by
271
References
43
Citations by year
2026: 1 · 2025: 2 · 2024: 6 · 2023: 5 · 2022: 7 · 2021: 7 · 2020: 6 · 2019: 8 · 2018: 4 · 2017: 12 · 2016: 12 · 2015: 7 · 2014: 12 · 2013: 21 · 2012: 19
FWCI
6.91
Type
journal article
Language
en
Open access
closed
Locations
  • Hypertension (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Heart Research Institute
  • National Health and Medical Research Council
  • National Medical Research Council
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Regulation of Appetite and Obesity
  • Health Sciences › Medicine › Epidemiology › Adipokines, Inflammation, and Metabolic Diseases
  • Health Sciences › Medicine › Reproductive Medicine › Hypothalamic control of reproductive hormones
Keywords
leptin, sympathetic nervous system, heart failure, essential hypertension, autonomic failure, aging, epinephrine secretion, adiposity
MeSH terms
Adult, Aging, Antihypertensive Agents, Autonomic Nervous System Diseases, Clonidine, Epinephrine, Female, Humans, Hypertension, Infusions, Intravenous, Male, Middle Aged, Nitroprusside, Norepinephrine, Obesity, Sympathetic Nervous System, Ventricular Dysfunction, Left, Leptin

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