Evidence map›Paper›PMID 23239524›Full record

ArticleJournal of orthopaedic research : official publication of the Orthopaedic Research Society2013

mTOR regulates fatty infiltration through SREBP-1 and PPARγ after a combined massive rotator cuff tear and suprascapular nerve injury in rats.

Sunil K Joshi, Xuhui Liu, Sanjum P Samagh, David H Lovett, Sue C Bodine, Hubert T Kim, Brian T Feeley

Abstract read
In one paragraph

Article in Journal of orthopaedic research : official publication of the Orthopaedic Research Society, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed, 1 pooled it
3.8field-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

37 citing papers in PubMed, 1 synthesis or guideline pooled it, 71 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Article
  5. Muscle Health & Fatty Infiltration with Advanced Rotator Cuff Pathology.Current reviews in musculoskeletal medicine · 2025
    Review
  6. Rotator cuff tears.Nature reviews. Disease primers · 2024
    Review
  7. Article
  8. Article
  9. Article
  10. Review
  11. Review
  12. Synthetic Retinoids Beyond Cancer Therapy.Annual review of pharmacology and toxicology · 2022
    Review
  13. Paraspinal muscle imaging measurements for common spinal disorders: review and consensus-based recommendations from the ISSLS degenerative spinal phenotypes group.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2021
    Review
  14. βJournal of shoulder and elbow surgery · 2021
    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

7 authors at 3 institutions in 1 country.

Sunil K JoshiSan Francisco Veterans Affairs Medical Center, Department of Veterans Affairs, University of California, 1500 Owens Avenue, San Francisco, CA 94153, USA.
Xuhui Liu
Sanjum P Samagh
David H Lovett
Sue C Bodine
Hubert T Kim
Brian T Feeley
San Francisco VA Medical Center · USUniversity of California, San Francisco · USUniversity of California, Davis · US

Funding

Utilizing beige fat to improve muscle function after rotator cuff repairR01AR072669 · NIAMS · NORTHERN CALIFORNIA INSTITUTE/RES/EDU · PI FEELEY, BRIAN · 2018 to 2022
$2.2M
Molecular pathophysiology of massive rotator cuff tearsR03AR060871 · NIAMS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI FEELEY, BRIAN · 2012 to 2014
$226k
NIAMS NIH HHS R01 AR072669NIAMS NIH HHS R03 AR060871
6 · The paper itself

Abstract

Rotator cuff tears (RCTs) are among the most common injuries seen in orthopedic patients. Chronic tears can result in the development of muscular atrophy and fatty infiltration. Despite the prevalence of RCTs, little is known about the underlying molecular pathways that produce these changes. Recently, we have shown that mammalian target of rapamycin (mTOR) signaling plays an important role in muscle atrophy that results from massive RCTs in a rat model. The purpose of this study was therefore to extend our understanding of mTOR signaling and evaluate its role in fatty infiltration after a combined tendon transection and suprascapular nerve denervation surgery. Akt/mTOR signaling was significantly increased and resulted in the up-regulation of two transcription factors: SREBP-1 and PPARγ. We also saw an increase in expression of adipogenic markers: C/EBP-α and FASN. Upon treatment with rapamycin, an inhibitor of mTOR, we observed a decrease in mTOR signaling, activity of transcription factors, and reduction in fatty infiltration. Therefore, our study suggests that mTOR signaling mediates rotator cuff fatty infiltration via SREBP-1 and PPARγ. Clinically, our finding may alter current treatment methods to address rotator cuff fatty infiltration.

Indexed as

Rotator Cuff InjuriesAdipogenesisAdipose TissueAnimalsFemaleMuscle DenervationMuscle, SkeletalMuscular AtrophyPeripheral Nerve InjuriesPPAR gammaRatsRats, Sprague-DawleyRotator CuffSignal TransductionSterol Regulatory Element Binding Protein 1Tendon InjuriesmTOR protein, ratPPAR gammaSrebf1 protein, ratSterol Regulatory Element Binding Protein 1TOR Serine-Threonine Kinases

Identifiers

PMID23239524
PMCPMC4393845
OpenAlexW2069000038

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.