Cited by 119Nitric Oxide and Endothelin EffectsObesity, Physical Activity, DietDiabetes, Cardiovascular Risks, and Lipoproteins

Obesity reduces the bioavailability of nitric oxide in juveniles

Gruber, H-J, Mayer, C, Mangge, H, Fauler, G, Grandits, N, Wilders-Truschnig, M·2008·International Journal of Obesity

Abstract

Objective There is growing evidence that nitric oxide (NO) is critically involved in obesity and its clinical consequences like cardiovascular disease, hypertension and diabetes. We hypothesize that NO is already involved in the pathophysiology of juvenile obesity. We here determined the role of NO, its metabolites arginine and citrulline in obese and normal weight children. Design We investigated 57 obese and 57 normal weight age- and gender-matched juveniles. Various clinical parameters as well as body measurements and intima media thickness were determined. Results Obese juveniles revealed highly significant alterations in the NO pathway. NOX and citrulline were decreased in obese compared to normal weight juveniles and negatively correlated with body weight. Arginine was increased in obese juveniles and positively correlated with body weight. We found a significant negative correlation between NOX and oxidized low-density lipoprotein. Analysis of gamma-aminobutyric acid (GABA) revealed correlations with the NO pathway as NOX and citrulline were negatively correlated with GABA and arginine showed a positive correlation. Conclusion We show here that NO and its metabolites arginine and citrulline are already involved in juvenile obesity that may contribute to atherogenesis via reduced bioavailability of NO. Moreover, we identify GABA as a new parameter in the mechanism of obesity-related NO reduction.

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Crossref · 10.1038/sj.ijo.0803795

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  • NO bioavailability is decreased in animal models of diet-induced obesity and in obese and insulin-resistant patients.

    “NO bioavailability is decreased in animal models of diet-induced obesity and in obese and insulin resistant patients”

    From Regulation of obesity and insulin resistance by nitric oxide (2014) · cites this paper as [119]

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Authors
Gruber, H.-J., Mayer, C., Mangge, H., Fauler, G., Grandits, N., & Wilders-Truschnig, M.
Affiliations
University of Graz (AT)
Corresponding author
Gruber, H-J
Venue
International Journal of Obesity
Published
2008-01-15
Volume
32
Issue
5
Pages
826-831
ISSN
  • 0307-0565 (ISSN-L)
  • 1476-5497
OpenAlex
W1993701796
Cited by
119
References
32
Citations by year
2026: 3 · 2025: 2 · 2024: 1 · 2023: 7 · 2022: 7 · 2021: 8 · 2020: 13 · 2019: 6 · 2018: 4 · 2017: 8 · 2016: 7 · 2015: 8 · 2014: 9 · 2013: 6 · 2012: 6
FWCI
5.43
Type
journal article
Language
en
Open access
closed
Locations
  • International Journal of Obesity (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Bundesministerium für Gesundheit
  • Medizinische Universität Graz
Topics
  • Health Sciences › Medicine › Physiology › Nitric Oxide and Endothelin Effects
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Obesity, Physical Activity, Diet
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes, Cardiovascular Risks, and Lipoproteins
Keywords
nitric oxide bioavailability, youth obesity, children, L-arginine, citrulline, nitric oxide synthase, oxidized LDL, GABA, atherogenesis, intima-media thickness, body weight
MeSH terms
Adolescent, Arginine, Cardiovascular Diseases, Citrulline, Female, Humans, Insulin Resistance, Male, Nitric Oxide, Obesity

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