Evidence map›Paper›PMID 19629053›Full record

ArticleObesity (Silver Spring, Md.)2009

Relationship between body fat mass and free fatty acid kinetics in men and women.

Bettina Mittendorfer, Faidon Magkos, Elisa Fabbrini, B Selma Mohammed, Samuel Klein

Open access · bronzeAbstract read
In one paragraph

Article in Obesity (Silver Spring, Md.), 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 103 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
103citing papers in PubMed, 1 pooled it
5.9field-weighted citation impact, top 3% 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

103 citing papers in PubMed, 1 synthesis or guideline pooled it, 186 citations in OpenAlex.

  1. Metabolic characteristics of human subcutaneous abdominal adipose tissue after overnight fast.American journal of physiology. Endocrinology and metabolism · 2012
    Pooled it
  2. Trial
  3. Trial
  4. Impact of sex on the heart's metabolic and functional responses to diabetic therapies.American journal of physiology. Heart and circulatory physiology · 2013
    Trial
  5. Sex-associated differences in free fatty acid flux of obese adolescents.The Journal of clinical endocrinology and metabolism · 2013
    Trial
  6. Trial
  7. Trial
  8. Review
  9. Review
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Greater molecular potential for glucose metabolism in adipose tissue and skeletal muscle of women compared with men.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2024
    Article
  16. Review
  17. Article
  18. Review
  19. Article
  20. Review

43 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

5 authors at 3 institutions in 4 countries.

Bettina MittendorferDivision of Geriatrics and Nutritional Science and Center for Human Nutrition, Washington University School of Medicine, St Louis, Missouri, USA. mittendb@wustl.edu
Faidon Magkos
Elisa Fabbrini
B Selma Mohammed
Samuel Klein
Washington University in St. Louis · USIstituti di Ricovero e Cura a Carattere Scientifico · ITUnité de Nutrition Humaine · FR

Funding

Washington University Institute of Clinical and Translational Sciences (UL1)UL1RR024992 · NCRR · WASHINGTON UNIVERSITY · PI EVANOFF, BRADLEY A · 2007 to 2011
$45.4M
Washington University Nutrition Obesity Research CenterP30DK056341 · NIDDK · WASHINGTON UNIVERSITY · PI Jonathan R Brestoff · 1999 to 2026
$30.2M
YOGA LIFESTYLE INTERVENTION REDUCES BLOOD PRESSURE IN HIV-INFECTED ADULTSP41RR000954 · NCRR · WASHINGTON UNIVERSITY · PI LIN, XI · 1985 to 2011
$16.0M
Sleep and Metabolism in Obesity: Impact of GenderP50HD057796 · NICHD · UNIVERSITY OF CHICAGO · PI EHRMANN, DAVID A · 2007 to 2011
$5.9M
THERMOGENESIS AND EXERCISE IN LEAN, OBESE, AND DIABETICR01DK037948 · NIDDK · WEILL MEDICAL COLLEGE OF CORNELL UNIV · PI KLEIN, SAMUEL · 1987 to 2012
$4.6M
Effects of sex and adiposity on muscle protein synthesisR01AR049869 · NIAMS · WASHINGTON UNIVERSITY · PI MITTENDORFER, BETTINA · 2004 to 2008
$1.6M
NCCIH NIH HHS AT 0110NCRR NIH HHS P41 RR000954NCRR NIH HHS RR 00954NCRR NIH HHS UL1 RR024992NIAMS NIH HHS AR 49869NIAMS NIH HHS R01 AR049869NICHD NIH HHS HD 057796NICHD NIH HHS P50 HD057796NIDDK NIH HHS DK 37948NIDDK NIH HHS DK 56341NIDDK NIH HHS P30 DK056341NIDDK NIH HHS R01 DK037948
6 · The paper itself

Abstract

An increased release of free fatty acids (FFAs) into plasma likely contributes to the metabolic complications associated with obesity. However, the relationship between body fat and FFA metabolism is unclear because of conflicting results from different studies. The goal of our study was to determine the inter-relationships between body fat, sex, and plasma FFA kinetics. We determined FFA rate of appearance (Ra) in plasma, by using stable isotopically labeled tracer techniques, during basal conditions in 106 lean, overweight, and obese, nondiabetic subjects (43 men and 63 women who had 7.0-56.0% body fat). Correlation analyses demonstrated: (i) no differences between men and women in the relationship between fat mass (FM) and total FFA Ra (micromol/min); (ii) total FFA Ra increased linearly with increasing FM (r=0.652, P<0.001); (iii) FFA Ra per kg FM decreased in a curvilinear fashion with increasing FM (r=-0.806; P<0.001); (iv) FFA Ra in relationship to fat-free mass (FFM) was greater in obese than lean subjects and greater in women than in men; and (v) abdominal fat itself was not an important determinant of total FFA Ra. We conclude that total body fat, not regional fat distribution or sex, is an important modulator of the rate of FFA release into plasma. Although increased adiposity is associated with a decrease in fatty acid release in relationship to FM, this downregulation is unable to completely compensate for the increase in FM, so total FFA Ra and FFA Ra with respect to FFM are greater in women than in men and in obese than in lean subjects.

Indexed as

Absorptiometry, PhotonAdipose TissueAdolescentAdultBlood GlucoseFatty Acids, NonesterifiedFemaleHumansInsulinKineticsMaleMiddle AgedObesityRegression AnalysisYoung AdultBlood GlucoseFatty Acids, NonesterifiedInsulin

Identifiers

PMID19629053
PMCPMC3319738
OpenAlexW1982483611

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.