Evidence map›Paper›PMID 23418416›Full record

ArticlePloS one2013

Relationships between mitochondrial function and metabolic flexibility in type 2 diabetes mellitus.

Tineke van de Weijer, Lauren Marie Sparks, Esther Phielix, Ruth Carla Meex, Noud Antonius van Herpen, Matthijs Karel C Hesselink, Patrick Schrauwen, Vera Bettina Schrauwen-Hinderling

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed, 1 pooled it
4.9field-weighted citation impact, top 4% 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

47 citing papers in PubMed, 1 synthesis or guideline pooled it, 85 citations in OpenAlex.

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  18. GlyNAC (Glycine andAntioxidants (Basel, Switzerland) · 2022
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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

8 authors at 1 institution in 1 country.

Tineke van de WeijerDepartment of Human Biology, Maastricht University Medical Center, Maastricht, The Netherlands.
Lauren Marie Sparks
Esther Phielix
Ruth Carla Meex
Noud Antonius van Herpen
Matthijs Karel C Hesselink
Patrick Schrauwen
Vera Bettina Schrauwen-Hinderling
Maastricht University · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionMitochondrial dysfunction, lipid accumulation, insulin resistance and metabolic inflexibility have been implicated in the etiology of type 2 diabetes (T2D), yet their interrelationship remains speculative. We investigated these interrelationships in a group of T2D and obese normoglycemic control subjects.

methods49 non-insulin dependent male T2D patients and 54 male control subjects were enrolled, and a hyperinsulinemic-euglycemic clamp and indirect calorimetry were performed. A muscle biopsy was taken and intramyocellular lipid (IMCL) was measured. In vivo mitochondrial function was measured by PCr recovery in 30 T2D patients and 31 control subjects.

resultsFasting NEFA levels were significantly elevated in T2D patients compared with controls, but IMCL was not different. Mitochondrial function in T2D patients was compromised by 12.5% (p<0.01). Whole body glucose disposal (WGD) was higher at baseline and lower after insulin stimulation. Metabolic flexibility (ΔRER) was lower in the type 2 diabetic patients (0.050±0.033 vs. 0.093±0.050, p<0.01). Mitochondrial function was the sole predictor of basal respiratory exchange ratio (RER) (R(2) = 0.18, p<0.05); whereas WGD predicted both insulin-stimulated RER (R(2) = 0.29, p<0.001) and metabolic flexibility (R(2) = 0.40, p<0.001).

conclusionsThese results indicate that defects in skeletal muscle in vivo mitochondrial function in type 2 diabetic patients are only reflected in basal substrate oxidation and highlight the importance of glucose disposal rate as a determinant of substrate utilization in response to insulin.

Indexed as

AgedBlood GlucoseDiabetes Mellitus, Type 2Fatty Acids, NonesterifiedGlucose Clamp TechniqueHumansInsulinInsulin ResistanceLipid MetabolismMaleMiddle AgedMitochondriaMuscle, SkeletalObesityBlood GlucoseFatty Acids, NonesterifiedInsulin

Identifiers

PMID23418416
PMCPMC3572106
OpenAlexW2079395532

What OpenQuestion holds

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LicenceCC BY
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.