Evidence map›Paper›PMID 12860922›Full record

ArticleThe Journal of physiology2003

Exercise-induced expression of vascular endothelial growth factor mRNA in rat skeletal muscle is dependent on fibre type.

Olivier J G Birot, Nathalie Koulmann, André Peinnequin, Xavier A Bigard

Open access · greenAbstract read
In one paragraph

Article in The Journal of physiology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
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

26 citing papers in PubMed, 84 citations in OpenAlex.

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  15. Murine double minute-2 expression is required for capillary maintenance and exercise-induced angiogenesis in skeletal muscle.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2012
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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

4 authors at 1 institution in 1 country.

Olivier J G BirotDepartment of Human Factors, Centre de Recherches du Service de Santé des Armées, BP 87-38702, La Tronche Cedex, France.
Nathalie Koulmann
André Peinnequin
Xavier A Bigard
Service de Santé des Armées · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In this study, we quantified the expression of the vascular endothelial growth factor (VEGF) gene in individual muscle fibres at the end of a single 90 min run of 20-25 m min-1, at 10 % incline. In addition, we evaluated the co-ordinated expression of several hypoxia-sensitive genes, including the ORP-150 gene. Individual fibres were taken from rat plantaris muscle, either at the end of a single bout of exercise or at rest, and classified as Type I, IIa, IIx or IIb, according to the expression of myosin heavy chain (MHC) isoforms. VEGF mRNA levels increased by 90 % in exercising whole plantaris in comparison with those in control muscle (P < 0.001), while the VEGF protein content increased by 72 % (P < 0.05). Using real-time PCR analysis, an accurate and reproducible method for quantification of mRNA levels, a marked rise in VEGF transcript levels was observed at the end of exercise in individual myofibres (P < 0.05), providing the first direct evidence that VEGF transcripts increase in muscle cells after a single bout of exercise. This exercise-induced increase in VEGF transcript levels was specifically observed in type IIb myofibres, which are predominantly glycolytic and more susceptible to local hypoxia than oxidative myofibres such as type I or IIa fibres (110 %, P < 0.05). Moreover, treadmill exercise increased the expression of two hypoxia-sensitive genes. The levels of mRNA for Flt-1, a VEGF-specific receptor, and those for ORP-150, a chaperone essential for the secretion of mature VEGF, increased in whole plantaris muscles (108 and 92 %, respectively, P < 0.05). Taken together, these findings are consistent with the suggestion that hypoxia could be one of the mechanisms involved in exercise-induced capillary growth.

Indexed as

AnimalsExtracellular Matrix ProteinsFemaleGene ExpressionHSP70 Heat-Shock ProteinsHypoxia-Inducible Factor 1, alpha SubunitMuscle Fibers, Fast-TwitchMuscle Fibers, Slow-TwitchMuscle, SkeletalPhysical ExertionProteinsRatsRats, WistarRNA, MessengerTranscription FactorsVascular Endothelial Growth Factor AExtracellular Matrix ProteinsFlt1 protein, ratHSP70 Heat-Shock ProteinsHypoxia-Inducible Factor 1, alpha Subunitoxygen-regulated proteinsProteinsRNA, MessengerTranscription FactorsVascular Endothelial Growth Factor AVascular Endothelial Growth Factor Receptor-1Vascular Endothelial Growth Factor Receptor-2

Identifiers

PMID12860922
PMCPMC2343332
OpenAlexW2114723564

What OpenQuestion holds

Textmetadata
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.