Evidence map›Paper›PMID 36562292›Full record

ArticleJournal of cachexia, sarcopenia and muscle2023

The G protein-coupled receptor ligand apelin-13 ameliorates skeletal muscle atrophy induced by chronic kidney disease.

Yuki Enoki, Tomoya Nagai, Yuna Hamamura, Sumika Osa, Hideaki Nakamura, Kazuaki Taguchi, Hiroshi Watanabe, Toru Maruyama, Kazuaki Matsumoto

Open access · goldAbstract read
In one paragraph

Article in Journal of cachexia, sarcopenia and muscle, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
2.4field-weighted citation impact, top 12% 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

17 citing papers in PubMed, 1 synthesis or guideline pooled it, 14 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Article
  5. Article
  6. Preventing Metabolic Syndrome in Adolescents Through Exercise.Advances in experimental medicine and biology · 2026
    Review
  7. Article
  8. Article
  9. Review
  10. Article
  11. Liver B Cells Promotes MASLD Progression via the Apelin/APLNR System.International journal of medical sciences · 2025
    Article
  12. Review
  13. Review
  14. Review
  15. 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

9 authors at 3 institutions in 1 country.

Yuki EnokiDivision of Pharmacodynamics, Keio University Faculty of Pharmacy, Tokyo, Japan.ORCID 0000-0002-5934-0670
Tomoya NagaiDivision of Pharmacodynamics, Keio University Faculty of Pharmacy, Tokyo, Japan.
Yuna HamamuraDivision of Pharmacodynamics, Keio University Faculty of Pharmacy, Tokyo, Japan.
Sumika OsaDivision of Pharmacodynamics, Keio University Faculty of Pharmacy, Tokyo, Japan.
Hideaki NakamuraFaculty of Pharmaceutical Sciences, Sojo University, Kumamoto, Japan.
Kazuaki TaguchiDivision of Pharmacodynamics, Keio University Faculty of Pharmacy, Tokyo, Japan.
Hiroshi WatanabeDepartment of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan.
Toru MaruyamaDepartment of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan.
Kazuaki MatsumotoDivision of Pharmacodynamics, Keio University Faculty of Pharmacy, Tokyo, Japan.
Keio University · JPKumamoto University · JPSojo University · JP

Funding

JSPS KAKENHI 18K15069
6 · The paper itself

Abstract

backgroundTargeting of the apelin-apelin receptor (Apj) system may serve as a useful therapeutic intervention for the management of chronic kidney disease (CKD)-induced skeletal muscle atrophy. We investigated the roles and efficacy of the apelin-Apj system in CKD-induced skeletal muscle atrophy.

methodsThe 5/6-nephrectomized mice were used as CKD models. AST-120, a charcoal adsorbent of uraemic toxins (8 w/w% in diet), or apelin (1 μmol/kg) was administered to CKD mice to investigate the mechanism and therapeutic potential of apelin on CKD-induced skeletal muscle atrophy. The effect of indoxyl sulfate, a uraemic toxin, or apelin on skeletal muscle atrophy was evaluated using mouse myoblast cells (C2C12 cells) in vitro.

resultsSkeletal muscle atrophy developed over time following nephrectomy at 12 weeks, as confirmed by a significant increase of atrogin-1 and myostatin mRNA expression in the gastrocnemius (GA) muscle and a decrease of lower limb skeletal muscle weight (P < 0.05, 0.01 and 0.05, respectively). Apelin expression in GA muscle was significantly decreased (P < 0.05) and elabela, another Apj endogenous ligand, tended to show a non-significant decrease at 12 weeks after nephrectomy. Administration of AST-120 inhibited the decline of muscle weight and increase of atrogin-1 and myostatin expression. Apelin and elabela expression was slightly improved by AST-120 administration but Apj expression was not, suggesting the involvement of uraemic toxins in endogenous Apj ligand expression. The administration of apelin at 1.0 μmol/kg for 4 weeks to CKD mice suppressed the increase of atrogin-1 and myostatin, increased apelin and Apj mRNA expression at 30 min after apelin administration and significantly ameliorated weight loss and a decrease of the cross-sectional area of hindlimb skeletal muscle.

conclusionsThis study demonstrated for the first time the association of the Apj endogenous ligand-uraemic toxin axis with skeletal muscle atrophy in CKD and the utility of therapeutic targeting of the apelin-Apj system.

Indexed as

MyostatinRenal Insufficiency, ChronicAnimalsApelinApelin ReceptorsCarbonIntercellular Signaling Peptides and ProteinsLigandsMiceMuscle, SkeletalMuscular AtrophyOxidesRNA, MessengerUremic ToxinsApelinapelin-13 peptideApelin ReceptorsAST 120CarbonIntercellular Signaling Peptides and ProteinsLigandsMyostatinOxidesRNA, MessengerUremic ToxinsapelinApjchronic kidney diseaseelabelaskeletal muscle atrophyuraemic toxin

Identifiers

PMID36562292
PMCPMC9891924
OpenAlexW4312113175

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.