Evidence map›Paper›PMID 19588229›Full record

ArticleMolecular and cellular biochemistry2009

Alterations in peroxisome proliferator-activated receptor mRNA expression in skeletal muscle after acute and repeated bouts of exercise.

Espen E Spangenburg, David A Brown, Micah S Johnson, Russell L Moore

Open access · greenAbstract read
In one paragraph

Article in Molecular and cellular biochemistry, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
2.0field-weighted citation impact, top 14% 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

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 39 citations in OpenAlex.

  1. Pooled it
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  16. Effect of chronic contractile activity on mRNA stability in skeletal muscle.American journal of physiology. Cell physiology · 2010
    Article
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

4 authors at 3 institutions in 1 country.

Espen E SpangenburgDepartment of Kinesiology, University of Maryland, College Park, MD 20742, USA. espen@umd.edu
David A Brown
Micah S Johnson
Russell L Moore
University of Colorado System · USEast Carolina University · USUniversity of Maryland, College Park · US

Funding

EXERCISE TRAINING &THE MYOCARDIUM--CELLULAR ADAPTATIONSR01HL040306 · NHLBI · UNIVERSITY OF COLORADO AT BOULDER · PI MOORE, RUSSELL L · 1990 to 2004
$1.4M
Exercise Training and Myocardial K-ATP Channel FunctionR01HL072790 · NHLBI · UNIVERSITY OF COLORADO AT BOULDER · PI MOORE, RUSSELL L · 2004 to 2007
$1.0M
NHLBI NIH HHS HL 40306-15NHLBI NIH HHS HL 72790-02NHLBI NIH HHS R01 HL040306NHLBI NIH HHS R01 HL072790
6 · The paper itself

Abstract

Peroxisome proliferator-activated receptors (PPAR) exist in three different forms, alpha (alpha), beta/delta (beta/delta), or gamma (gamma), all of which are expressed in skeletal muscle and play a critical role in the regulation of oxidative metabolism. The purpose of this investigation was to determine the mRNA expression pattern of the different PPARs and peroxisome proliferator-activated receptor alpha coactivator-1 alpha (PGC-1alpha) in muscles that largely rely on either glycolytic (plantaris) or oxidative (soleus) metabolism. Further, we also examined the alterations in the PPARs mRNA expression after one bout of endurance exercise or after 12 weeks of exercise training in the different muscles. Female Sprague-Dawley rats (5-8 months) were either run on the treadmill once or exercised trained for 12 weeks. The muscles were removed 24 h after the last bout of exercise. The results demonstrated with the exception of PPAR beta/delta, the PPAR mRNAs are expressed to a greater extent in the soleus muscle than in the plantaris muscle in sedentary animals. PPARgamma was the least abundantly expressed PPAR in either the soleus or the plantaris muscle. With respect to exercise training, only PPARgamma mRNA expression increased in the soleus muscle, while PPARbeta/delta and gamma mRNA levels increased in the plantaris muscle. Minimal changes were detected in any of the PPARs with one bout of exercise training. These results suggest that PPARgamma mRNA levels are the lowest in skeletal muscle among all of the PPARs and PPARgamma mRNA is the most responsive to changes in physical activity levels.

Indexed as

AnimalsCitrate (si)-SynthaseFemaleMuscle, SkeletalPeroxisome Proliferator-Activated ReceptorsPhysical Conditioning, AnimalPhysical EnduranceRatsRats, Sprague-DawleyReverse Transcriptase Polymerase Chain ReactionRNA, MessengerCitrate (si)-SynthasePeroxisome Proliferator-Activated ReceptorsRNA, Messenger

Identifiers

PMID19588229
PMCPMC2801580
OpenAlexW1979622545

What OpenQuestion holds

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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.