Evidence map›Paper›PMID 31833547›Full record

ArticleThe Journal of clinical endocrinology and metabolism2020

Decreased Mitochondrial Dynamics Is Associated with Insulin Resistance, Metabolic Rate, and Fitness in African Americans.

John J Dubé, Michael L Collyer, Sara Trant, Frederico G S Toledo, Bret H Goodpaster, Erin E Kershaw, James P DeLany

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of clinical endocrinology and metabolism, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.3field-weighted citation impact, top 19% 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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

14 citing papers in PubMed, 21 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. A thermogenic botanical composition containingFood & nutrition research · 2025
    Article
  6. Review
  7. Cellular Recycling Gone Wrong: The Role of Dysregulated Autophagy and Hyperactive mTORC1 in the Pathogenesis of Sarcoidosis.Sarcoidosis, vasculitis, and diffuse lung diseases : official journal of WASOG · 2023
    Article
  8. Article
  9. Review
  10. Normalization of maternal adiponectin in obese pregnant mice prevents programming of impaired glucose metabolism in adult offspring.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2022
    Article
  11. Review
  12. Review
  13. Review
  14. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 2 institutions in 1 country.

John J DubéDivision of Endocrinology, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania.
Michael L CollyerSchool of Arts, Business, and Science, Department of Biology, Chatham University, Pittsburgh, Pennsylvania.
Sara TrantSchool of Arts, Business, and Science, Department of Biology, Chatham University, Pittsburgh, Pennsylvania.
Frederico G S ToledoDivision of Endocrinology, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania.
Bret H GoodpasterDivision of Endocrinology, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania.
Erin E KershawDivision of Endocrinology, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania.
James P DeLanyDivision of Endocrinology, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania.
University of Pittsburgh · USChatham University · US

Funding

University of Pittsburgh Clinical and Translational Science InstituteUL1TR000005 · NCATS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI REIS, STEVEN E · 2012 to 2015
$50.8M
Decreased Fat Oxidation - Metabolic Inflexibility in African-American WomenR01DK091462 · NIDDK · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI DELANY, JAMES P · 2011 to 2013
$1.4M
Mitochondrial Function and Insulin Sensitivity in African American WomenR56DK091462 · NIDDK · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI DELANY, JAMES P · 2015 to 2015
$300k
NCATS NIH HHS UL1 TR000005NIDDK NIH HHS R01 DK091462NIDDK NIH HHS R56 DK091462
6 · The paper itself

Abstract

contextAfrican American women (AAW) have a higher incidence of insulin resistance and are at a greater risk for the development of obesity and type 2 diabetes than Caucasian women (CW). Although several factors have been proposed to mediate these racial disparities, the mechanisms remain poorly defined. We previously demonstrated that sedentary lean AAW have lower peripheral insulin sensitivity, reduced maximal aerobic fitness (VO2max), and lower resting metabolic rate (RMR) than CW. We have also demonstrated that skeletal muscle mitochondrial respiration is lower in AAW and appears to play a role in these racial differences.

objectiveThe goal of this study was to assess mitochondrial pathways and dynamics to examine the potential mechanisms of lower insulin sensitivity, RMR, VO2max, and mitochondrial capacity in AAW.

designTo achieve this goal, we assessed several mitochondrial pathways in skeletal muscle using gene array technology and semiquantitative protein analysis.

resultsWe report alterations in mitochondrial pathways associated with inner membrane small molecule transport genes, fusion-fission, and autophagy in lean AAW. These differences were associated with lower insulin sensitivity, RMR, and VO2max.

conclusionsTogether these data suggest that the metabolic racial disparity of insulin resistance, RMR, VO2max, and mitochondrial capacity may be mediated by perturbations in mitochondrial pathways associated with membrane transport, fission-fusion, and autophagy. The mechanisms contributing to these differences remain unknown.

Indexed as

Basal MetabolismExerciseInsulin ResistanceMitochondrial DynamicsAdolescentAdultFemaleFollow-Up StudiesHumansMaleMitochondriaMuscle, SkeletalPrognosisYoung AdultAfrican American womenmitochondriaskeletal muscle

Identifiers

PMID31833547
PMCPMC7067552
OpenAlexW2995806158

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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 OpenQuestion graph.