Evidence map›Paper›PMID 21170321›Full record

ArticlePloS one2010

Plasma metabolomic profiles reflective of glucose homeostasis in non-diabetic and type 2 diabetic obese African-American women.

Oliver Fiehn, W Timothy Garvey, John W Newman, Kerry H Lok, Charles L Hoppel, Sean H Adams

2 registry-linked trialsOpen access · goldAbstract read
In one paragraph

Article in PloS one, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 219 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
219citing papers in PubMed, 4 pooled it
6.9field-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.

NCT03084003 nacompletednot on this mapstarted 2016, after this paper: background citation

Effects of Almond Consumption on Cardiovascular, Metabolomic, and Microbiome Profiles in Millennials: Implications of Systemic Glucoregulatory Mechanisms

TypeinterventionalSponsorUniversity of California, MercedRan2016 to 2019Enrolled74ConditionsDiet InterventionArmsAlmonds, Graham crackers
NCT06279780 nacompletednot on this mapstarted 2019, after this paper: background citation

Effect of a Very Low-calorie Diet on Microbiota, Oxidative Stress, Inflammatory and Metabolomic Profile in Metabolically Healthy and Unhealthy Obese Subjects

TypeinterventionalSponsorCelia BañulsRan2019 to 2024Enrolled109ConditionsObesity Adult OnsetArmsvery low-calorie diet
3 · Its place in the literature

Who cites it

219 citing papers in PubMed, 4 syntheses or guidelines pooled it, 428 citations in OpenAlex.

  1. Pooled it
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  5. Trial
  6. Nutrients · 2024
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  15. Gut microbes · 2026
    Article
  16. Observational
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  18. Article
  19. Article
  20. Article

159 more citing papers are in PubMed but not listed here.

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

6 authors at 5 institutions in 1 country.

Oliver FiehnGenome Center, University of California Davis, Davis, California, United States of America.
W Timothy Garvey
John W Newman
Kerry H Lok
Charles L Hoppel
Sean H Adams
University of Alabama at Birmingham · USAgricultural Research Service · USCase Western Reserve University · USUniversity of California, Davis · USWestern Human Nutrition Research Center · US

Funding

Why is the prevalence of obesity so high in U.S. Southern States? Regional predictors of BMI and obesity treatment response.P30DK056336 · NIDDK · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI James O Hill · 2000 to 2026
$31.9M
UAB CENTER FOR CLINICAL AND TRANSLATIONAL SCIENCE (CCTS) UL1: BPCAUL1RR025777 · NCRR · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI GUAY-WOODFORD, LISA MARIE · 2008 to 2011
$22.3M
SECRETED ADIPOCYTE PROTEINS, INSULIN RESISTANCE VASCULARP01HL055782 · NHLBI · MEDICAL UNIVERSITY OF SOUTH CAROLINA · PI GARVEY, W TIMOTHY · 1996 to 2005
$8.9M
UAB Diabetes Research and Training CenterP60DK079626 · NIDDK · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI GARVEY, W TIMOTHY · 2008 to 2012
$8.4M
NR4A Orphan Receptors And Insulin ResistanceR01DK083562 · NIDDK · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI GARVEY, W TIMOTHY · 2009 to 2012
$2.1M
Identification of Muscle-Specific Biomarkers of Fatty Acid beta-OxidationR01DK078328 · NIDDK · U.S. AGRICULTURAL RESEARCH SERVICE · PI ADAMS, SEAN HARRISON · 2008 to 2012
$1.8M
NCRR NIH HHS UL1 RR025777NHLBI NIH HHS P01 HL-055782NHLBI NIH HHS P01 HL055782NIDDK NIH HHS DK-038764NIDDK NIH HHS DK-083562NIDDK NIH HHS P30 DK056336NIDDK NIH HHS P30-DK56336NIDDK NIH HHS P60 DK079626NIDDK NIH HHS R01 DK078328NIDDK NIH HHS R01DK078328-01NIDDK NIH HHS R01 DK083562
6 · The paper itself

Abstract

Insulin resistance progressing to type 2 diabetes mellitus (T2DM) is marked by a broad perturbation of macronutrient intermediary metabolism. Understanding the biochemical networks that underlie metabolic homeostasis and how they associate with insulin action will help unravel diabetes etiology and should foster discovery of new biomarkers of disease risk and severity. We examined differences in plasma concentrations of >350 metabolites in fasted obese T2DM vs. obese non-diabetic African-American women, and utilized principal components analysis to identify 158 metabolite components that strongly correlated with fasting HbA1c over a broad range of the latter (r = -0.631; p<0.0001). In addition to many unidentified small molecules, specific metabolites that were increased significantly in T2DM subjects included certain amino acids and their derivatives (i.e., leucine, 2-ketoisocaproate, valine, cystine, histidine), 2-hydroxybutanoate, long-chain fatty acids, and carbohydrate derivatives. Leucine and valine concentrations rose with increasing HbA1c, and significantly correlated with plasma acetylcarnitine concentrations. It is hypothesized that this reflects a close link between abnormalities in glucose homeostasis, amino acid catabolism, and efficiency of fuel combustion in the tricarboxylic acid (TCA) cycle. It is speculated that a mechanism for potential TCA cycle inefficiency concurrent with insulin resistance is "anaplerotic stress" emanating from reduced amino acid-derived carbon flux to TCA cycle intermediates, which if coupled to perturbation in cataplerosis would lead to net reduction in TCA cycle capacity relative to fuel delivery.

Indexed as

AcetylcarnitineAllelesAmino AcidsBiomarkersBlack or African AmericanDiabetes Mellitus, Type 2FemaleGlucoseHomeostasisHumansMetabolomicsMutation, MissenseObesityPolymorphism, GeneticTricarboxylic AcidsAcetylcarnitineAmino AcidsBiomarkersGlucoseTricarboxylic Acids

Identifiers

PMID21170321
PMCPMC3000813
OpenAlexW2028151674

What OpenQuestion holds

Textmetadata
LicenceCC0
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 OpenQuestion graph.