Evidence map›Paper›PMID 20800581›Full record

ArticleBiochemical and biophysical research communications2010

The adipokine leptin increases skeletal muscle mass and significantly alters skeletal muscle miRNA expression profile in aged mice.

Mark W Hamrick, Samuel Herberg, Phonepasong Arounleut, Hong-Zhi He, Austin Shiver, Rui-Qun Qi, Li Zhou, Carlos M Isales, Qing-Sheng Mi

Abstract read
In one paragraph

Article in Biochemical and biophysical research communications, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 88 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
88citing papers in PubMed, 1 pooled it
3.7field-weighted citation impact, top 6% 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

88 citing papers in PubMed, 1 synthesis or guideline pooled it, 154 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Review
  5. MicroRNA Regulatory Targets Related to VObioRxiv : the preprint server for biology · 2026
    Article
  6. Review
  7. Review
  8. Article
  9. Ablation of UCP-1+ cells impacts FAP dynamics in muscle regeneration.American journal of physiology. Cell physiology · 2025
    Article
  10. Article
  11. Review
  12. Review
  13. Review
  14. Article
  15. Article
  16. Article
  17. Sarcopenic obesity: emerging mechanisms and therapeutic potential.Metabolism: clinical and experimental · 2023
    Review
  18. Review
  19. Article
  20. Review

28 more citing papers are in PubMed but not listed here.

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 2 institutions in 1 country.

Mark W HamrickDepartment of Cellular Biology and Anatomy, Institute of Molecular Medicine and Genetics, Medical College of Georgia, Augusta, GA 30912, USA. mhamrick@mail.mcg.edu
Samuel Herberg
Phonepasong Arounleut
Hong-Zhi He
Austin Shiver
Rui-Qun Qi
Li Zhou
Carlos M Isales
Qing-Sheng Mi
Augusta University · USHenry Ford Health System · US

Funding

Effects of Myostatin Deficiency on Bone StrengthR01AR049717 · NIAMS · MEDICAL COLLEGE OF GEORGIA (MCG) · PI HAMRICK, MARK W · 2004 to 2007
$890k
NIAMS NIH HHS AR 049717NIAMS NIH HHS R01 AR049717
6 · The paper itself

Abstract

Age-associated loss of muscle mass, or sarcopenia, contributes directly to frailty and an increased risk of falls and fractures among the elderly. Aged mice and elderly adults both show decreased muscle mass as well as relatively low levels of the fat-derived hormone leptin. Here we demonstrate that loss of muscle mass and myofiber size with aging in mice is associated with significant changes in the expression of specific miRNAs. Aging altered the expression of 57 miRNAs in mouse skeletal muscle, and many of these miRNAs are now reported to be associated specifically with age-related muscle atrophy. These include miR-221, previously identified in studies of myogenesis and muscle development as playing a role in the proliferation and terminal differentiation of myogenic precursors. We also treated aged mice with recombinant leptin, to determine whether leptin therapy could improve muscle mass and alter the miRNA expression profile of aging skeletal muscle. Leptin treatment significantly increased hindlimb muscle mass and extensor digitorum longus fiber size in aged mice. Furthermore, the expression of 37 miRNAs was altered in muscles of leptin-treated mice. In particular, leptin treatment increased the expression of miR-31 and miR-223, miRNAs known to be elevated during muscle regeneration and repair. These findings suggest that aging in skeletal muscle is associated with marked changes in the expression of specific miRNAs, and that nutrient-related hormones such as leptin may be able to reverse muscle atrophy and alter the expression of atrophy-related miRNAs in aging skeletal muscle.

Indexed as

AgingAnimalsGene Expression ProfilingLeptinMiceMice, Inbred C57BLMicroRNAsMuscle DevelopmentMuscle, SkeletalMuscular AtrophyLeptinMicroRNAs

Identifiers

PMID20800581
PMCPMC3740337
OpenAlexW2071187477

What OpenQuestion holds

Textmetadata
LicenceTDM
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.