Evidence mapPaperPMID 33164985Full record

Trial reportThe Journal of clinical investigation2020

Decreased adipose tissue oxygenation associates with insulin resistance in individuals with obesity.

Vincenza Cifarelli, Scott C Beeman, Gordon I Smith, Jun Yoshino, Darya Morozov, Joseph W Beals, Brandon D Kayser, Jeramie D Watrous, Mohit Jain, Bruce W Patterson and 1 more

Registry-linked trialOpen access · bronzeAbstract readClinical TrialMulticenter Study
In one paragraph

Trial report in The Journal of clinical investigation, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02706262 (Complex Effects of Dietary Manipulation on Metabolic Function, Inflammation and Health), which is not on this map. Cited by 72 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
72citing papers in PubMed, 2 pooled it
8.3field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT02706262 naactive not recruitingnot on this map

Complex Effects of Dietary Manipulation on Metabolic Function, Inflammation and Health

TypeinterventionalSponsorWashington University School of MedicineRan2016 to 2027Enrolled180ConditionsObesity, Insulin ResistanceArmsMetabolically abnormal obese - Mediterranean diet, Metabolically abnormal obese - Low carbohydrate ketogenic diet, Metabolically abnormal obese - Plant-based, very-low-fat diet, Annual Follow-up Visits
3 · Its place in the literature

Who cites it

72 citing papers in PubMed, 2 syntheses or guidelines pooled it, 123 citations in OpenAlex.

  1. Lipedema: Progress, Challenges, and the Road Ahead.Obesity reviews : an official journal of the International Association for the Study of Obesity · 2025
    Pooled it
  2. Pooled it
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  17. Branched-chain amino acid metabolism: Pathophysiological mechanism and therapeutic intervention in metabolic diseases.Obesity reviews : an official journal of the International Association for the Study of Obesity · 2025
    Review
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12 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

11 authors at 3 institutions in 1 country.

Vincenza CifarelliCenter for Human Nutrition and Atkins Center of Excellence in Obesity Medicine, and.
Scott C BeemanCenter for Human Nutrition and Atkins Center of Excellence in Obesity Medicine, and.
Gordon I SmithCenter for Human Nutrition and Atkins Center of Excellence in Obesity Medicine, and.
Jun YoshinoCenter for Human Nutrition and Atkins Center of Excellence in Obesity Medicine, and.
Darya MorozovMallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, Missouri, USA.
Joseph W BealsCenter for Human Nutrition and Atkins Center of Excellence in Obesity Medicine, and.
Brandon D KayserCenter for Human Nutrition and Atkins Center of Excellence in Obesity Medicine, and.
Jeramie D WatrousDepartments of Medicine and Pharmacology, University of California, San Diego, La Jolla, California, USA.
Mohit JainDepartments of Medicine and Pharmacology, University of California, San Diego, La Jolla, California, USA.
Bruce W PattersonCenter for Human Nutrition and Atkins Center of Excellence in Obesity Medicine, and.
Samuel KleinCenter for Human Nutrition and Atkins Center of Excellence in Obesity Medicine, and.
Atkins (United States) · USUniversity of California San Diego · USMallinckrodt (United States) · US

Funding

Yeast Genetics and Stress Response Genes-BiomedicalP42ES010337 · UNIVERSITY OF CALIFORNIA SAN DIEGO · 2000 to 2005
$19.5M
Tissue Analysis Imaging CoreP30DK052574 · NIDDK · WASHINGTON UNIVERSITY · 2000 to 2025
$13.7M
TRANSGENICS COREP60DK020579 · WASHINGTON UNIVERSITY · 1986 to 2005
$11.8M
Washington University Institute of Clinical and Translational SciencesUL1TR002345 · WASHINGTON UNIVERSITY · 2025 to 2025
$9.3M
Washington University Nutrition Obesity Research CenterP30DK056341 · WASHINGTON UNIVERSITY · 1999 to 2025
$5.7M
WU P&FP30DK020579 · NIDDK · WASHINGTON UNIVERSITY · 2022 to 2025
$5.6M
WUSTL Transdisciplinary Pre- and Postdoctoral Training Program in Obesity and Cardiovascular DiseaseT32HL130357 · WASHINGTON UNIVERSITY · 2025 to 2025
$275k
NCATS NIH HHS UL1 TR002345NHLBI NIH HHS T32 HL130357NIDDK NIH HHS K01 DK109119NIDDK NIH HHS K01 DK116917NIDDK NIH HHS P30 DK020579NIDDK NIH HHS P30 DK052574NIDDK NIH HHS P30 DK056341NIDDK NIH HHS P60 DK020579NIEHS NIH HHS P42 ES010337NIEHS NIH HHS R01 ES027595NIH HHS S10 OD020025NIH HHS S10 OD026929
6 · The paper itself

Abstract

BACKGROUNDData from studies conducted in rodent models have shown that decreased adipose tissue (AT) oxygenation is involved in the pathogenesis of obesity-induced insulin resistance. Here, we evaluated the potential influence of AT oxygenation on AT biology and insulin sensitivity in people.METHODSWe evaluated subcutaneous AT oxygen partial pressure (pO2); liver and whole-body insulin sensitivity; AT expression of genes and pathways involved in inflammation, fibrosis, and branched-chain amino acid (BCAA) catabolism; systemic markers of inflammation; and plasma BCAA concentrations, in 3 groups of participants that were rigorously stratified by adiposity and insulin sensitivity: metabolically healthy lean (MHL; n = 11), metabolically healthy obese (MHO; n = 15), and metabolically unhealthy obese (MUO; n = 20).RESULTSAT pO2 progressively declined from the MHL to the MHO to the MUO group, and was positively associated with hepatic and whole-body insulin sensitivity. AT pO2 was positively associated with the expression of genes involved in BCAA catabolism, in conjunction with an inverse relationship between AT pO2 and plasma BCAA concentrations. AT pO2 was negatively associated with AT gene expression of markers of inflammation and fibrosis. Plasma PAI-1 increased from the MHL to the MHO to the MUO group and was negatively correlated with AT pO2, whereas the plasma concentrations of other cytokines and chemokines were not different among the MHL and MUO groups.CONCLUSIONThese results support the notion that reduced AT oxygenation in individuals with obesity contributes to insulin resistance by increasing plasma PAI-1 concentrations and decreasing AT BCAA catabolism and thereby increasing plasma BCAA concentrations.TRIAL REGISTRATIONClinicalTrials.gov NCT02706262.FUNDINGThis study was supported by NIH grants K01DK109119, T32HL130357, K01DK116917, R01ES027595, P42ES010337, DK56341 (Nutrition Obesity Research Center), DK20579 (Diabetes Research Center), DK052574 (Digestive Disease Research Center), and UL1TR002345 (Clinical and Translational Science Award); NIH Shared Instrumentation Grants S10RR0227552, S10OD020025, and S10OD026929; and the Foundation for Barnes-Jewish Hospital.

Indexed as

Insulin ResistanceAdultAmino Acids, Branched-ChainBiomarkersFemaleGene Expression RegulationHumansInflammationMaleObesityOxygenSubcutaneous FatAmino Acids, Branched-ChainBiomarkersOxygenAdipose tissueGlucose metabolismMetabolismObesity

Identifiers

PMID33164985
PMCPMC7685757
OpenAlexW3101109668

What Socratic holds

Textmetadata
Read underepoch 390

Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.