Cited by 156Adipokines, Inflammation, and Metabolic DiseasesAdipose Tissue and MetabolismNitric Oxide and Endothelin Effects

Overexpression of endothelial nitric oxide synthase prevents diet-induced obesity and regulates adipocyte phenotype

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Sansbury, Brian E., Cummins, Timothy D., Tang, Yunan, Hellmann, Jason, Holden, Candice R., Harbeson, Matthew A., Chen, Yang, Patel, Rakesh P. +3 more·2012·Circulation Research

Abstract

RATIONALE: Endothelial dysfunction is a characteristic feature of diabetes and obesity in animal models and humans. Deficits in nitric oxide production by endothelial nitric oxide synthase (eNOS) are associated with insulin resistance, which is exacerbated by high-fat diet. Nevertheless, the metabolic effects of increasing eNOS levels have not been studied. OBJECTIVE: The current study was designed to test whether overexpression of eNOS would prevent diet-induced obesity and insulin resistance. METHODS AND RESULTS: In db/db mice and in high-fat diet-fed wild-type C57BL/6J mice, the abundance of eNOS protein in adipose tissue was decreased without significant changes in eNOS levels in skeletal muscle or aorta. Mice overexpressing eNOS (eNOS transgenic mice) were resistant to diet-induced obesity and hyperinsulinemia, although systemic glucose intolerance remained largely unaffected. In comparison with wild-type mice, high-fat diet-fed eNOS transgenic mice displayed a higher metabolic rate and attenuated hypertrophy of white adipocytes. Overexpression of eNOS did not affect food consumption or diet-induced changes in plasma cholesterol or leptin levels, yet plasma triglycerides and fatty acids were decreased. Metabolomic analysis of adipose tissue indicated that eNOS overexpression primarily affected amino acid and lipid metabolism; subpathway analysis suggested changes in fatty acid oxidation. In agreement with these findings, adipose tissue from eNOS transgenic mice showed higher levels of PPAR-α and PPAR-γ gene expression, elevated abundance of mitochondrial proteins, and a higher rate of oxygen consumption. CONCLUSIONS: These findings demonstrate that increased eNOS activity prevents the obesogenic effects of high-fat diet without affecting systemic insulin resistance, in part, by stimulating metabolic activity in adipose tissue.

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Crossref · 10.1161/circresaha.112.266395

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  • Lower NOS3 abundance is found in both adipose tissue and skeletal muscle of obese humans and rodents.

    “lower NOS3 abundance is found in both adipose tissue and skeletal muscle of obese humans and rodents [120-124].”

    From Regulation of obesity and insulin resistance by nitric oxide (2014) · cites this paper as [122]

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Authors
Sansbury, B. E., Cummins, T. D., Tang, Y., Hellmann, J., Holden, C. R., Harbeson, M. A., Chen, Y., Patel, R. P., Spite, M., Bhatnagar, A., & Hill, B. G.
Affiliations
University of Alabama at Birmingham (US)
Venue
Circulation Research
Published
2012-10-12
Volume
111
Issue
9
Pages
1176-1189
ISSN
  • 0009-7330 (ISSN-L)
  • 1524-4571
OpenAlex
W2078821762
Cited by
156
References
79
Citations by year
2026: 3 · 2025: 7 · 2024: 6 · 2023: 11 · 2022: 13 · 2021: 6 · 2020: 14 · 2019: 10 · 2018: 6 · 2017: 17 · 2016: 12 · 2015: 12 · 2014: 24 · 2013: 13 · 2012: 1
FWCI
11.93
Type
journal article
Language
en
Open access
Locations
  • Circulation Research (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health
  • National Heart, Lung, and Blood Institute (HL-106173, HL 59378, R01HL059378, R01HL055477, HL55477, R01HL106173)
  • National Institute of General Medical Sciences (P20GM103492)
  • National Center for Research Resources (RR-024489, P20RR024489)
Topics
  • Health Sciences › Medicine › Epidemiology › Adipokines, Inflammation, and Metabolic Diseases
  • Health Sciences › Medicine › Physiology › Adipose Tissue and Metabolism
  • Health Sciences › Medicine › Physiology › Nitric Oxide and Endothelin Effects
Keywords
endothelial nitric oxide synthase, diet-induced obesity, insulin resistance, adipocyte hypertrophy, adipose tissue metabolism, fatty acid oxidation, PPARα, PPARγ, mitochondrial function, hyperinsulinemia, db/db mice, transgenic mice, nitric oxide
MeSH terms
Amino Acids, Animals, Disease Models, Animal, Hypertrophy, Insulin Resistance, Mice, Inbred C57BL, Mice, Transgenic, Obesity, Phenotype, Adipocytes, PPAR alpha, PPAR gamma, Lipid Metabolism, Mice, Nitric Oxide Synthase Type III, Diet, High-Fat

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