Evidence map›Paper›PMID 19047209›Full record

ArticleThe Journal of physiology2009

The decrease in mature myostatin protein in male skeletal muscle is developmentally regulated by growth hormone.

Jenny M Oldham, Claire C Osepchook, Ferenc Jeanplong, Shelley J Falconer, Kenneth G Matthews, John V Conaglen, David F Gerrard, Heather K Smith, Richard J Wilkins, James J Bass and 1 more

Open access · greenAbstract read
In one paragraph

Article in The Journal of physiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
1.0field-weighted citation impact, top 27% 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

22 citing papers in PubMed, 39 citations in OpenAlex.

  1. Trial
  2. Article
  3. Article
  4. Article
  5. Sex Differences in Inflammation and Muscle Wasting in Aging and Disease.International journal of molecular sciences · 2023
    Review
  6. Article
  7. Article
  8. Myokines in Acromegaly: An Altered Irisin Profile.Frontiers in endocrinology · 2021
    Article
  9. Article
  10. Article
  11. Article
  12. Myostatin and beyond in cirrhosis: all roads lead to sarcopenia.Journal of cachexia, sarcopenia and muscle · 2017
    Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Article
  20. 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

11 authors at 5 institutions in 1 country.

Jenny M OldhamGrowth Physiology Group, AgResearch Ltd., Hamilton, New Zealand.
Claire C Osepchook
Ferenc Jeanplong
Shelley J Falconer
Kenneth G Matthews
John V Conaglen
David F Gerrard
Heather K Smith
Richard J Wilkins
James J Bass
Christopher D McMahon
AgResearch · NZClinical Trials New Zealand · NZDunedin Public Hospital · NZUniversity of Auckland · NZUniversity of Waikato · NZ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Myostatin inhibits myogenesis and there is reduced abundance of the mature protein in skeletal muscles of adult male compared with female mice. This reduction probably occurs after translation, which suggests that it is a regulated mechanism to reduce the availability of myostatin in males. Reduced myostatin may, thereby, contribute to the development of sexually dimorphic growth of skeletal muscle. Our first objective was to determine if the decrease in mature myostatin protein occurs before the linear growth phase to aid growth, or afterwards to maintain the mass of adult muscle. Mice were killed from 2 to 32 weeks and the gastrocnemius muscle was excised. Myostatin mRNA increased from 2 to 32 weeks and was higher in males than females (P < 0.001). In contrast, mature protein decreased in males after 6 weeks (P < 0.001). Our second objective was to determine if growth hormone (GH) induces the decrease in mature myostatin protein. GH increased myostatin mRNA and decreased the abundance of mature protein in hypophysectomised mice (P < 0.05). Our final objective was to determine if the decrease in mature protein occurs in skeletal muscles of male Stat5b(-/-) mice (Stat5b mediates the actions of GH). As expected, mature myostatin protein was not reduced in Stat5b(-/-) males compared with females. However, myostatin mRNA remained higher in males than females irrespective of genotype. These data suggest that: (1) the decrease in mature myostatin protein is developmentally regulated, (2) GH acting via Stat5b regulates the abundance of mature myostatin and (3) GH acts via a non-Stat5b pathway to regulate myostatin mRNA.

Indexed as

Down-RegulationMuscle, SkeletalAnimalsBody WeightFemaleGene Expression Regulation, DevelopmentalGrowth HormoneMaleMiceMice, KnockoutMuscle DevelopmentMyostatinSex CharacteristicsSTAT5 Transcription FactorGrowth HormoneMstn protein, mouseMyostatinStat5b protein, mouseSTAT5 Transcription Factor

Identifiers

PMID19047209
PMCPMC2670088
OpenAlexW1592739326

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.