Cited by 211Gut microbiota and healthAdipokines, Inflammation, and Metabolic DiseasesCardiovascular Disease and Adiposity

Metabolic endotoxemia: a molecular link between obesity and cardiovascular risk

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Neves, Ana Luísa, Coelho, João, Couto, Luciana, Leite-Moreira, Adelino, Roncon-Albuquerque, Roberto·2013·Journal of Molecular Endocrinology

Abstract

Obesity is associated with significantly increased cardiovascular (CV) risk and mortality. Several molecular mechanisms underlying this association have been implied, among which the intestinal barrier has gained a growing interest. In experimental models of obesity, significant alterations in the intestinal barrier lead to increased intestinal permeability, favoring translocation of microbiome-derived lipopolysaccharide to the bloodstream. This has been shown to result in a two- to threefold increase in its serum concentrations, a threshold named ‘metabolic endotoxemia’ (ME). ME may trigger toll-like receptor 4-mediated inflammatory activation, eliciting a chronic low-grade proinflammatory and pro-oxidative stress status, which may result in high CV risk and target-organ damage. In this review, we discuss the potential molecular implications of ME on several CV risk factors, such as obesity, insulin resistance, dyslipidemia, and oxidative stress, as well as its potential impact on the development of CV target-organ disease.

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  • Endotoxemia may occur secondary to increased intestinal permeability resulting from extreme physiologic stress, ethanol exposure, or a Western diet high in carbohydrate and saturated fat.

    “and secondary to increased intestinal permeability resulting from extreme physiologic stress,32 ethanol exposure,33 or a “fast-food style” Western diet, high in both carbohydrate and saturated fat.34”

    From The Gut Microbiome and the Brain (2014) · cites this paper as [34]

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Authors
Neves, A. L., Coelho, J., Couto, L., Leite-Moreira, A., & Roncon-Albuquerque, R.
Affiliations
Universidade do Porto (PT)
Venue
Journal of Molecular Endocrinology
Published
2013-08-12
Volume
51
Issue
2
Pages
R51-R64
ISSN
  • 0952-5041 (ISSN-L)
  • 1479-6813
OpenAlex
W2074238456
Cited by
211
References
94
Citations by year
2026: 10 · 2025: 5 · 2024: 16 · 2023: 12 · 2022: 25 · 2021: 17 · 2020: 36 · 2019: 16 · 2018: 16 · 2017: 19 · 2016: 17 · 2015: 13 · 2014: 7 · 2013: 2
FWCI
1.22
Type
journal article
Language
en
Open access
Locations
  • Journal of Molecular Endocrinology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Health Sciences › Medicine › Epidemiology › Adipokines, Inflammation, and Metabolic Diseases
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiovascular Disease and Adiposity
Keywords
metabolic endotoxemia, obesity, cardiovascular risk, intestinal permeability, intestinal barrier, lipopolysaccharide, gut microbiota, TLR4, low-grade inflammation, oxidative stress, insulin resistance, dyslipidemia, target organ damage
MeSH terms
Animals, Cardiovascular Diseases, Humans, Immunity, Innate, Intestinal Mucosa, Intestines, Obesity, Risk Factors, Endotoxemia

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