Evidence map›Paper›PMID 23832079›Full record

ArticleExperimental gerontology2013

A myostatin inhibitor (propeptide-Fc) increases muscle mass and muscle fiber size in aged mice but does not increase bone density or bone strength.

Phonepasong Arounleut, Peter Bialek, Li-Fang Liang, Sunil Upadhyay, Sadanand Fulzele, Maribeth Johnson, Mohammed Elsalanty, Carlos M Isales, Mark W Hamrick

Open access · hybridAbstract read
In one paragraph

Article in Experimental gerontology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 1 pooled it
3.6field-weighted citation impact, top 7% 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

31 citing papers in PubMed, 1 synthesis or guideline pooled it, 62 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. The Role of Myokines in Liver Diseases.International journal of molecular sciences · 2025
    Review
  5. Review
  6. Article
  7. Article
  8. Article
  9. Impact of Genetic and Pharmacologic Inhibition of Myostatin in a Murine Model of Osteogenesis Imperfecta.Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2021
    Article
  10. Review
  11. Myostatin deficiency not only prevents muscle wasting but also improves survival in septic mice.American journal of physiology. Endocrinology and metabolism · 2021
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Neonatal Systemic AAV-Mediated Gene Delivery of GDF11 Inhibits Skeletal Muscle Growth.Molecular therapy : the journal of the American Society of Gene Therapy · 2018
    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

9 authors at 4 institutions in 1 country.

Phonepasong ArounleutGeorgia Regents University, Augusta, GA 30912, USA.
Peter Bialek
Li-Fang Liang
Sunil Upadhyay
Sadanand Fulzele
Maribeth Johnson
Mohammed Elsalanty
Carlos M Isales
Mark W Hamrick
Georgia Regents Medical Center · USAugusta University · USPfizer (United States) · USTauri Group (United States) · US

Funding

THE LEPTIN-IGF1 AXIS IN MUSCULOSKELETAL AGINGP01AG036675 · NIA · AUGUSTA UNIVERSITY · PI CARLOS M. ISALES · 2011 to 2026
$31.5M
NIA NIH HHS P01 AG036675
6 · The paper itself

Abstract

Loss of muscle and bone mass with age are significant contributors to falls and fractures among the elderly. Myostatin deficiency is associated with increased muscle mass in mice, dogs, cows, sheep and humans, and mice lacking myostatin have been observed to show increased bone density in the limb, spine, and jaw. Transgenic overexpression of myostatin propeptide, which binds to and inhibits the active myostatin ligand, also increases muscle mass and bone density in mice. We therefore sought to test the hypothesis that in vivo inhibition of myostatin using an injectable myostatin propeptide (GDF8 propeptide-Fc) would increase both muscle mass and bone density in aged (24 mo) mice. Male mice were injected weekly (20 mg/kg body weight) with recombinant myostatin propeptide-Fc (PRO) or vehicle (VEH; saline) for four weeks. There was no difference in body weight between the two groups at the end of the treatment period, but PRO treatment significantly increased mass of the tibialis anterior muscle (+ 7%) and increased muscle fiber diameter of the extensor digitorum longus (+ 16%) and soleus (+ 6%) muscles compared to VEH treatment. Bone volume relative to total volume (BV/TV) of the femur calculated by microCT did not differ significantly between PRO- and VEH-treated mice, and ultimate force (Fu), stiffness (S), toughness (U) measured from three-point bending tests also did not differ significantly between groups. Histomorphometric assays also revealed no differences in bone formation or resorption in response to PRO treatment. These data suggest that while developmental perturbation of myostatin signaling through either gene knockout or transgenic inhibition may alter both muscle and bone mass in mice, pharmacological inhibition of myostatin in aged mice has a more pronounced effect on skeletal muscle than on bone.

Indexed as

AgingAnimalsBody WeightBone DensityDrug Evaluation, PreclinicalMaleMiceMice, Inbred C57BLMuscle Fibers, SkeletalMuscle, SkeletalMyostatinOsteogenesisOsteoporosisRecombinant ProteinsSarcopeniaStress, MechanicalMstn protein, mouseMyostatinRecombinant ProteinsAnabolic therapyFracturesGDF-8OsteoporosisSarcopenia

Identifiers

PMID23832079
PMCPMC3930487
OpenAlexW2036985965

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.