Evidence map›Paper›PMID 34537761›Full record

ArticleAging2021

Dulaglutide improves muscle function by attenuating inflammation through OPA-1-TLR-9 signaling in aged mice.

Phyu Phyu Khin, Yeonhee Hong, MyeongHoon Yeon, Dae Ho Lee, Jong Han Lee, Hee-Sook Jun

Open access · hybridAbstract read
In one paragraph

Article in Aging, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.8field-weighted citation impact, top 9% 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

18 citing papers in PubMed, 37 citations in OpenAlex.

  1. Review
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  3. Article
  4. Muscle health in the modern era of incretin-based therapies.European journal of clinical investigation · 2026
    Review
  5. Targeting Sarcopenia in CKD: The Emerging Role of GLP-1 Receptor Agonists.International journal of molecular sciences · 2025
    Review
  6. Article
  7. Review
  8. Assessment of Changes in Body Composition After 3 Months of Dulaglutide Treatment.Diabetes, metabolic syndrome and obesity : targets and therapy · 2024
    Article
  9. Review
  10. Review
  11. Article
  12. Review
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  14. Article
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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

6 authors at 3 institutions in 1 country.

Phyu Phyu KhinCollege of Pharmacy and Gachon Institute of Pharmaceutical Science, Gachon University, Incheon, Korea.
Yeonhee HongCollege of Pharmacy and Gachon Institute of Pharmaceutical Science, Gachon University, Incheon, Korea.
MyeongHoon YeonCollege of Pharmacy and Gachon Institute of Pharmaceutical Science, Gachon University, Incheon, Korea.
Dae Ho LeeDepartment of Internal Medicine, Gil Medical Center, Gachon University College of Medicine, Incheon, Korea.
Jong Han LeeDepartment of Marine Bio and Medical Science, Hanseo University, Seosan, Korea.
Hee-Sook JunCollege of Pharmacy and Gachon Institute of Pharmaceutical Science, Gachon University, Incheon, Korea.
Gachon University · KRGachon University Gil Medical Center · KRHanseo University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Dulaglutide, a glucagon-like peptide-1 receptor (GLP-1R) agonist, is widely used to treat diabetes. However, its effects on muscle wasting due to aging are poorly understood. In the current study, we investigated the therapeutic potential and underlying mechanism of dulaglutide in muscle wasting in aged mice. Dulaglutide improved muscle mass and strength in aged mice. Histological analysis revealed that the cross-sectional area of the tibialis anterior (TA) in the dulaglutide-treated group was thicker than that in the vehicle group. Moreover, dulaglutide increased the shift toward middle and large-sized fibers in both young and aged mice compared to the vehicle. Dulaglutide increased myofiber type I and type IIa in young (18.5% and 8.2%) and aged (1.8% and 19.7%) mice, respectively, compared to the vehicle group. Peroxisome proliferator-activated receptor-gamma coactivator-1α (PGC-1α), a master regulator of mitochondrial biogenesis, decreased but increased by dulaglutide in aged mice. The expression of atrophic factors such as myostatin, atrogin-1, and muscle RING-finger protein-1 was decreased in aged mice, whereas that of the myogenic factor, MyoD, was increased in both young and aged mice following dulaglutide treatment. In aged mice, optic atrophy-1 (OPA-1) protein was decreased, whereas Toll-like receptor-9 (TLR-9) and its targeting inflammatory cytokines (interleukin-6 [IL-6] and tumor necrosis factor-α [TNF-α]) were elevated in the TA and quadriceps (QD) muscles. In contrast, dulaglutide administration reversed this expression pattern, thereby significantly attenuating the expression of inflammatory cytokines in aged mice. These data suggest that dulaglutide may exert beneficial effects in the treatment of muscle wasting due to aging.

Indexed as

AgingAnimalsGlucagon-Like PeptidesGTP PhosphohydrolasesHumansHypoglycemic AgentsImmunoglobulin Fc FragmentsInterleukin-6MaleMiceMuscle ProteinsMuscle, SkeletalPeroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alphaRecombinant Fusion ProteinsSarcopeniaSignal TransductiondulaglutideFbxo32 protein, mouseGlucagon-Like PeptidesGTP PhosphohydrolasesHypoglycemic AgentsImmunoglobulin Fc FragmentsInterleukin-6Muscle ProteinsOpa1 protein, mousePeroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alphaPpargc1a protein, mouseRecombinant Fusion ProteinsSKP Cullin F-Box Protein LigasesTlr9 protein, mouseToll-Like Receptor 9Tumor Necrosis Factor-alphadulaglutideglucagon-like peptide-1inflammationoptic atrophy-1sarcopenia

Identifiers

PMID34537761
PMCPMC8507261
OpenAlexW3200100852

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.