Evidence map›Paper›PMID 16007256›Full record

ArticleThe Journal of clinical investigation2005

Dynamic changes in fat oxidation in human primary myocytes mirror metabolic characteristics of the donor.

Barbara Ukropcova, Michele McNeil, Olga Sereda, Lilian de Jonge, Hui Xie, George A Bray, Steven R Smith

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

Article in The Journal of clinical investigation, 2005. 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 95 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
95citing papers in PubMed, 1 pooled it
7.2field-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.

NCT02226640 completednot on this mapstarted 2010, after this paper: background citation

Uncovering the 'ORIGINS' of Diabetes

TypeobservationalSponsorAdventHealth Translational Research InstituteRan2010 to 2014Enrolled80ConditionsType 2 Diabetes
NCT04334343 naactive not recruitingnot on this mapstarted 2020, after this paper: background citation

Investigating the Effects of Aerobic and Resistance Training in Vivo on Skeletal Muscle Metabolism in Vitro in Primary Human Muscle Cells (MoTrMyo)

TypeinterventionalSponsorAdventHealth Translational Research InstituteRan2020 to 2026Enrolled179ConditionsPhysical ActivityArmsAdditional Muscle Biopsy Collection
3 · Its place in the literature

Who cites it

95 citing papers in PubMed, 1 synthesis or guideline pooled it, 212 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. Trial
  5. Trial
  6. Skeletal muscle NAMPT is induced by exercise in humans.American journal of physiology. Endocrinology and metabolism · 2010
    Trial
  7. Trial
  8. Trial
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Review
  19. Review
  20. Article

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

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 1 institution in 1 country.

Barbara UkropcovaPennington Biomedical Research Center, Baton Rouge, LA 70808, USA.
Michele McNeil
Olga Sereda
Lilian de Jonge
Hui Xie
George A Bray
Steven R Smith
Pennington Biomedical Research Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Metabolic flexibility of skeletal muscle, that is, the preference for fat oxidation (FOx) during fasting and for carbohydrate oxidation in response to insulin, is decreased during insulin resistance. The aim of this study was to test the hypothesis that the capacity of myotubes to oxidize fat in vitro reflects the donor's metabolic characteristics. Insulin sensitivity (IS) and metabolic flexibility of 16 healthy, young male subjects was determined by euglycemic hyperinsulinemic clamp. Muscle samples were obtained from vastus lateralis, cultured, and differentiated into myotubes. In human myotubes in vitro, we measured suppressibility (glucose suppression of FOx) and adaptability (an increase in FOx in the presence of high palmitate concentration). We termed these dynamic changes in FOx metabolic switching. In vivo, metabolic flexibility was positively correlated with IS and maximal oxygen uptake and inversely correlated with percent body fat. In vitro suppressibility was inversely correlated with IS and metabolic flexibility and positively correlated with body fat and fasting FFA levels. Adaptability was negatively associated with percent body fat and fasting insulin and positively correlated with IS and metabolic flexibility. The interindividual variability in metabolic phenotypes was preserved in human myotubes separated from their neuroendocrine environment, which supports the hypothesis that metabolic switching is an intrinsic property of skeletal muscle.

Indexed as

AdolescentAdultDietary FatsGlucoseGlucose Clamp TechniqueHumansInsulin ResistanceIn Vitro TechniquesMaleModels, BiologicalMuscle Fibers, SkeletalOxidation-ReductionPalmitic AcidPhenotypeDietary FatsGlucosePalmitic Acid

Identifiers

PMID16007256
PMCPMC1159139
OpenAlexW2098384661

What OpenQuestion 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 OpenQuestion graph.