Cited by 95Adipokines, Inflammation, and Metabolic DiseasesCardiovascular Disease and AdiposityAdipose Tissue and Metabolism

Obesity-associated insulin resistance is correlated to adipose tissue vascular endothelial growth factors and metalloproteinase levels

Open access
Tinahones, Francisco José, Coín-Aragüez, Leticia, Mayas, Maria Dolores, Garcia-Fuentes, Eduardo, Hurtado-del-Pozo, Carmen, Vendrell, Joan, Cardona, Fernando, Calvo, Rosa-Maria +2 more·2012·BMC Physiology

Abstract

BACKGROUND: The expansion of adipose tissue is linked to the development of its vasculature, which appears to have the potential to regulate the onset of obesity. However, at present, there are no studies highlighting the relationship between human adipose tissue angiogenesis and obesity-associated insulin resistance (IR). RESULTS: Our aim was to analyze and compare angiogenic factor expression levels in both subcutaneous (SC) and omentum (OM) adipose tissues from morbidly obese patients (n = 26) with low (OB/L-IR) (healthy obese) and high (OB/H-IR) degrees of IR, and lean controls (n = 17). Another objective was to examine angiogenic factor correlations with obesity and IR.Here we found that VEGF-A was the isoform with higher expression in both OM and SC adipose tissues, and was up-regulated 3-fold, together with MMP9 in OB/L-IR as compared to leans. This up-regulation decreased by 23% in OB/-H-IR compared to OB/L-IR. On the contrary, VEGF-B, VEGF-C and VEGF-D, together with MMP15 was down-regulated in both OB/H-IR and OB/L-IR compared to lean patients. Moreover, MMP9 correlated positively and VEGF-C, VEGF-D and MMP15 correlated negatively with HOMA-IR, in both SC and OM. CONCLUSION: We hereby propose that the alteration in MMP15, VEGF-B, VEGF-C and VEGF-D gene expression may be caused by one of the relevant adipose tissue processes related to the development of IR, and the up-regulation of VEGF-A in adipose tissue could have a relationship with the prevention of this pathology.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1186/1472-6793-12-4

Cites

35 of 35 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • VEGF is upregulated in adipose tissue of mice fed a high-fat diet for three days, but reports in chronic obesity show both enhanced and reduced VEGF expression.

    “For example, VEGF is upregulated in AT of mice fed a HFD for three days, but there are reports of both enhanced and reduced VEGF expression in chronic obesity (3,13,43,44), suggesting that sprouting angiogenesis is activated early and may or may not persist.”
  • Other reports have found elevated VEGF levels in obese subjects and a positive correlation between VEGF expression and insulin resistance.

    “However, contradictory reports have demonstrated elevated levels of VEGF in obese subjects as well as a positive correlation between VEGF expression and insulin resistance (43).”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Tinahones, F. J., Coín-Aragüez, L., Mayas, M. D., Garcia-Fuentes, E., Hurtado-del-Pozo, C., Vendrell, J., Cardona, F., Calvo, R.-M., Obregon, M.-J., & El Bekay, R.
Affiliations
  • Instituto de Salud Carlos III (ES)
  • Consejo Superior de Investigaciones Científicas (ES)
  • Institut de Recerca Biomèdica Catalunya Sud (ES)
Venue
BMC Physiology
Published
2012-04-02
Volume
12
Issue
1
Pages
4-4
ISSN
1472-6793 (ISSN-L)
OpenAlex
W2141804732
Cited by
95
References
35
Citations by year
2026: 3 · 2025: 9 · 2024: 8 · 2023: 5 · 2022: 9 · 2021: 9 · 2020: 3 · 2019: 8 · 2018: 8 · 2017: 7 · 2016: 6 · 2015: 5 · 2014: 3 · 2013: 10 · 2012: 2
FWCI
4.79
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • BMC Physiology (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DIGITAL.CSIC (Spanish National Research Council (CSIC)) (submittedVersion, cc-by)
  • RISalud Institutional Health Repository of Andalucía (submittedVersion, other-oa)
Funders
  • Comunidad de Madrid (BMD-2423)
  • Ministerio de Economía y Competitividad
  • Junta de Andalucía
  • Centro de Investigación Biomédica en Red-Fisiopatología de la Obesidad y Nutrición
  • Servicio Andaluz de Salud
  • Instituto de Salud Carlos III (PS09/00997, PI070953)
Topics
  • Health Sciences › Medicine › Epidemiology › Adipokines, Inflammation, and Metabolic Diseases
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiovascular Disease and Adiposity
  • Health Sciences › Medicine › Physiology › Adipose Tissue and Metabolism
Keywords
obesity, insulin resistance, adipose tissue angiogenesis, vascular endothelial growth factor, VEGF-A, VEGF-B, VEGF-C, VEGF-D, MMP-15, MMP-9, subcutaneous adipose tissue, omentum, HOMA-IR, gene expression
MeSH terms
Adipose Tissue, Humans, Insulin Resistance, Obesity, Obesity, Morbid, Omentum, Biomarkers, Gene Expression, Neovascularization, Physiologic, Vascular Endothelial Growth Factor A, Angiogenesis Inducing Agents, Metalloproteases, Subcutaneous Fat

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review