Cited by 368Diabetes, Cardiovascular Risks, and LipoproteinsCardiovascular Disease and AdiposityLiver Disease Diagnosis and Treatment

Ectopic fat and insulin resistance: pathophysiology and effect of diet and lifestyle interventions.

Open access
Snel, M., Jonker, J. T., Schoones, J., Lamb, H., de Roos, A., Pijl, H., Smit, J. W. A., Meinders, A. E. +1 more·2012·International Journal of Endocrinology

Abstract

The storage of triglyceride (TG) droplets in nonadipose tissues is called ectopic fat storage. Ectopic fat is associated with insulin resistance and type 2 diabetes mellitus (T2DM). Not the triglycerides per se but the accumulation of intermediates of lipid metabolism in organs, such as the liver, skeletal muscle, and heart seem to disrupt metabolic processes and impair organ function. We describe the mechanisms of ectopic fat depositions in the liver, skeletal muscle, and in and around the heart and the consequences for each organs function. In addition, we systematically reviewed the literature for the effects of diet-induced weight loss and exercise on ectopic fat depositions.

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Crossref · 10.1155/2012/983814

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  • Obesity-related insulin resistance is associated with impaired insulin-mediated inhibition of lipolysis in adipose tissue, resulting in increased efflux of free fatty acids into the blood and consequently ectopic lipid deposition.

    “In addition, obesity-related insulin resistance is associated with impaired insulin-mediated inhibition of lipolysis in adipose tissue (AT), resulting in an increased efflux of free fatty acids (FFAs) into the blood and, consequently, ectopic lipid deposition (Snel et al., 2012).”

    From Effect of Exercise Training on Fat Loss—Energetic Perspectives and the Role of Improved Adipose Tissue Function and Body Fat Distribution (2021) · cites this paper as Snel et al., 2012

    Section 3 (Adipose Tissue Dysfunction; page unavailable) links dysfunctional adipocytes to increased lipolysis and redirection of lipids to other tissues, causing ectopic fat deposition. Section 6.1 reports higher circulating FFAs during insulin infusion as suggestive of reduced adipose-tissue insulin sensitivity. The copy does not explicitly establish that impaired insulin-mediated inhibition of lipolysis is the mechanism connecting these findings. (LLM, conf=0.82)

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  • Lipid deposition in the liver and muscle directly increases insulin resistance.

    “Lipid deposition in the liver and muscle directly increases insulin resistance”

    From Effect of Exercise Training on Fat Loss—Energetic Perspectives and the Role of Improved Adipose Tissue Function and Body Fat Distribution (2021) · cites this paper as Snel et al., 2012

    The Discussion reports that ectopic fat in the liver and muscle is positively correlated with insulin resistance, and Section 4 describes how lipid intermediates impair insulin signaling. But the claim's unqualified 'directly increases' overstates the paper: Section 5.1 notes that endurance-trained athletes can have high muscle lipid content while remaining highly insulin sensitive. (LLM, conf=0.87)

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Research works printed but not linked: 1

  1. [115]Vague J La differenciation sexuelle: facteur determinant des formes: de l’obesite La Presse Médicale 1947 55 339 340 18918084

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Authors
Snel, M., Jonker, J. T., Schoones, J., Lamb, H., de Roos, A., Pijl, H., Smit, J. W. A., Meinders, A. E., & Jazet, I. M.
Affiliations
  • Leiden University Medical Center (NL)
  • Department of Radiology, Leiden University Medical Center, P.O. Box 9600, 2300 RC Leiden, The Netherlands
Corresponding author
Jazet, I. M.
Venue
International Journal of Endocrinology
Published
2012
Volume
2012
Pages
1-18
ISSN
  • 1687-8337 (ISSN-L)
  • 1687-8345
OpenAlex
W2025152562
Cited by
368
References
124
Citations by year
2026: 25 · 2025: 30 · 2024: 32 · 2023: 27 · 2022: 33 · 2021: 34 · 2020: 32 · 2019: 21 · 2018: 17 · 2017: 17 · 2016: 18 · 2015: 24 · 2014: 24 · 2013: 29 · 2012: 4
FWCI
20.79
Type
journal article
Language
en
Open access
Locations
  • International Journal of Endocrinology (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Leiden Repository (Leiden University) (submittedVersion)
  • Radboud Repository (Radboud University) (submittedVersion, other-oa)
  • Data Archiving and Networked Services (DANS) (submittedVersion, other-oa)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
  • Radboud Repository (Radboud University) (submittedVersion)
Topics
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes, Cardiovascular Risks, and Lipoproteins
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiovascular Disease and Adiposity
  • Health Sciences › Medicine › Epidemiology › Liver Disease Diagnosis and Treatment
Keywords
ectopic fat, insulin resistance, type 2 diabetes, hepatic steatosis, diet-induced weight loss, physical activity, lifestyle intervention

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