Evidence map›Paper›PMID 29071793›Full record

ArticleObesity (Silver Spring, Md.)2017

Intramyocellular Lipid Droplet Size Rather Than Total Lipid Content is Related to Insulin Sensitivity After 8 Weeks of Overfeeding.

Jeffrey D Covington, Darcy L Johannsen, Paul M Coen, David H Burk, Diana N Obanda, Philip J Ebenezer, Charmaine S Tam, Bret H Goodpaster, Eric Ravussin, Sudip Bajpeyi

Open access · greenAbstract read
In one paragraph

Article in Obesity (Silver Spring, Md.), 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
2.0field-weighted citation impact, top 13% 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

20 citing papers in PubMed, 1 synthesis or guideline pooled it, 33 citations in OpenAlex.

  1. Pooled it
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  6. Review
  7. Sleep Duration Alters Overfeeding-mediated Reduction in Insulin Sensitivity.The Journal of clinical endocrinology and metabolism · 2025
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  14. Circadian misalignment disturbs the skeletal muscle lipidome in healthy young men.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2021
    Article
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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

10 authors at 3 institutions in 2 countries.

Jeffrey D CovingtonLaboratory of Skeletal Muscle Physiology, Pennington Biomedical Research Center, Baton Rouge, Louisiana, USA.ORCID 0000-0002-5866-0912
Darcy L JohannsenLaboratory of Skeletal Muscle Physiology, Pennington Biomedical Research Center, Baton Rouge, Louisiana, USA.
Paul M CoenTranslational Research Institute for Metabolism and Diabetes, Florida Hospital, Sanford-Burnham Medical Research Institute, Orlando, Florida, USA.
David H BurkLaboratory of Skeletal Muscle Physiology, Pennington Biomedical Research Center, Baton Rouge, Louisiana, USA.
Diana N ObandaLaboratory of Skeletal Muscle Physiology, Pennington Biomedical Research Center, Baton Rouge, Louisiana, USA.
Philip J EbenezerLaboratory of Skeletal Muscle Physiology, Pennington Biomedical Research Center, Baton Rouge, Louisiana, USA.
Charmaine S TamThe Charles Perkins Centre and The School of Biological Sciences, University of Sydney, Sydney, New South Wales, Australia.
Bret H GoodpasterTranslational Research Institute for Metabolism and Diabetes, Florida Hospital, Sanford-Burnham Medical Research Institute, Orlando, Florida, USA.
Eric RavussinLaboratory of Skeletal Muscle Physiology, Pennington Biomedical Research Center, Baton Rouge, Louisiana, USA.
Sudip BajpeyiLaboratory of Skeletal Muscle Physiology, Pennington Biomedical Research Center, Baton Rouge, Louisiana, USA.ORCID 0000-0002-5336-8330
Pennington Biomedical Research Center · USSanford Burnham Prebys Medical Discovery Institute · USThe University of Sydney · AU

Funding

Tracking & Evaluation CoreU54GM104940 · NIGMS · LSU PENNINGTON BIOMEDICAL RESEARCH CTR · PI Peter Todd Katzmarzyk · 2012 to 2026
$69.1M
Research BaseP30DK072476 · NIDDK · LSU PENNINGTON BIOMEDICAL RESEARCH CTR · PI Peter Todd Katzmarzyk · 2005 to 2026
$26.5M
THE ROLE OF PROTEIN MALNUTRITION ON CIRCADIAN PHYSIOLOGY OF C57BL/6J MOUSE DAMSP20RR021945 · NCRR · LSU PENNINGTON BIOMEDICAL RESEARCH CTR · PI GETTYS, THOMAS W · 2006 to 2011
$9.5M
Mentoring Obesity and Diabetes Research in LouisianaP20GM103528 · NIGMS · LSU PENNINGTON BIOMEDICAL RESEARCH CTR · PI GETTYS, THOMAS W · 2012 to 2015
$8.8M
Transgenics CoreP30GM118430 · NIGMS · LSU PENNINGTON BIOMEDICAL RESEARCH CTR · PI GETTYS, THOMAS W · 2016 to 2020
$5.8M
Fat Cell Size, Overfeeding & Ectopic FatR01DK060412 · NIDDK · LSU PENNINGTON BIOMEDICAL RESEARCH CTR · PI RAVUSSIN, ERIC · 2001 to 2011
$5.4M
The role of mitochondrial energetics in adaptive thermogenesis with overfeedingK01DK089005 · NIDDK · LSU PENNINGTON BIOMEDICAL RESEARCH CTR · PI JOHANNSEN, DARCY LARAE · 2010 to 2014
$574k
NCRR NIH HHS P20 RR021945NIDDK NIH HHS K01 DK089005NIDDK NIH HHS P30 DK072476NIDDK NIH HHS R01 DK060412NIGMS NIH HHS P20 GM103528NIGMS NIH HHS P30 GM118430NIGMS NIH HHS U54 GM104940
6 · The paper itself

Abstract

objectiveIntramyocellular lipid (IMCL) is inversely related to insulin sensitivity in sedentary populations, yet no prospective studies in humans have examined IMCL accumulation with overfeeding.

methodsTwenty-nine males were overfed a high-fat diet (140% caloric intake, 44% from fat) for 8 weeks. Measures of IMCL, whole-body fat oxidation from a 24-hour metabolic chamber, muscle protein extracts, and muscle ceramide measures were obtained before and after the intervention.

resultsEight weeks of overfeeding did not increase overall IMCL. The content of smaller lipid droplets peripherally located in the myofiber decreased, while increases in larger droplets correlated inversely with glucose disposal rate. Overfeeding resulted in inhibition of Akt activity, which correlated with the reductions in smaller, peripherally located lipid droplets and drastic increases in ceramide content. Additionally, peripherally located lipid droplets were associated with more efficient lipid oxidation. Finally, participants who maintained a greater number of smaller, peripherally located lipid droplets displayed a better resistance to weight gain with overfeeding.

conclusionsThese results show that lipid droplet size and location rather than mere IMCL content are important to understanding insulin sensitivity.

Indexed as

AdultHumansImmunohistochemistryInsulin ResistanceLipid DropletsLipid MetabolismMale

Identifiers

PMID29071793
PMCPMC5705570
OpenAlexW2767123453

What OpenQuestion holds

Textmetadata
LicenceTDM
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.