Evidence map›Paper›PMID 34506219›Full record

ArticleAutophagy2022

Regulation and role of glycophagy in skeletal muscle energy metabolism.

Timothy D Heden, Lisa S Chow, Curtis C Hughey, Douglas G Mashek

Open access · bronzeAbstract read
In one paragraph

Article in Autophagy, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
4.1field-weighted citation impact, top 5% 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

30 citing papers in PubMed, 49 citations in OpenAlex.

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  11. Rainbow Trout (International journal of molecular sciences · 2025
    Article
  12. Article
  13. The role of astrocyte metabolic reprogramming in ischemic stroke (Review).International journal of molecular medicine · 2025
    Review
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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

4 authors at 1 institution in 1 country.

Timothy D HedenDepartment of Biochemistry, Molecular Biology, and Biophysics, University of Minnesota, Minneapolis, MN, USA.
Lisa S ChowDepartment of Medicine, Division of Endocrinology.ORCID 0000-0002-6210-2307
Curtis C HugheyDepartment of Medicine, Division of Molecular Medicine, University of Minnesota, Minneapolis, MN, USA.
Douglas G MashekDepartment of Biochemistry, Molecular Biology, and Biophysics, University of Minnesota, Minneapolis, MN, USA.ORCID 0000-0001-7033-3386
University of Minnesota · US

Funding

Regulation and consequences of hepatic lipid droplet catabolismR01DK114401 · NIDDK · UNIVERSITY OF MINNESOTA · PI MASHEK, DOUGLAS G · 2017 to 2020
$1.7M
Role of ATGL and lipid metabolism in healthspanR01AG055452 · NIA · UNIVERSITY OF MINNESOTA · PI MASHEK, DOUGLAS G · 2017 to 2021
$1.6M
Glycophagy in liver and skeletal muscle insulin sensitivity and energy metabolismK01DK125258 · NIDDK · UNIVERSITY OF MINNESOTA · PI HEDEN, TIMOTHY D. · 2020 to 2022
$489k
Skeletal muscle mitochondrial phosphatidylethanolamine and respiratorycapacityF32DK109556 · NIDDK · UNIVERSITY OF MINNESOTA · PI HEDEN, TIMOTHY D. · 2016 to 2018
$118k
NIA NIH HHS R01 AG055452NIDDK NIH HHS F32 DK109556NIDDK NIH HHS K01 DK125258NIDDK NIH HHS L30 DK110338NIDDK NIH HHS R01 DK114401
6 · The paper itself

Abstract

Glycophagy is the autophagic degradation of glycogen via the lysosomal enzyme GAA/alpha-acid glucosidase. Glycophagy is considered a housekeeping process to degrade poorly branched glycogen particles, but the regulation and role of glycophagy in skeletal muscle metabolism remains enigmatic. Herein, prior muscle contraction promoted glycogen supercompensation 24 and 48 h post contraction, an effect associated with reduced glycophagy. Moreover, NOTCH or cAMP signaling promoted glycophagy, whereas acute glycophagy deficiency rewired cell metabolism by reducing glycolysis and enhancing AMPK and PPAR signaling and fatty acid and glutamine metabolism. These metabolic adaptations were associated with reduced inflammation and triglyceride content but enhanced phosphoinositide 3-kinase (PI3K)-AKT/protein kinase B signaling and insulin action, the latter of which was abolished by exogenous oxidative stress. Collectively, these data suggest glycophagy is dynamically regulated, while the function of glycophagy can be extended beyond a housekeeping process to having an additional role in regulating energy metabolism and insulin action.

Indexed as

AMP-Activated Protein KinasesInsulinsAutophagyEnergy MetabolismGlucosidasesGlycogenMuscle, SkeletalPeroxisome Proliferator-Activated ReceptorsPhosphatidylinositol 3-KinasePhosphatidylinositol 3-KinasesAMP-Activated Protein KinasesGlucosidasesGlycogenInsulinsPeroxisome Proliferator-Activated ReceptorsPhosphatidylinositol 3-KinasePhosphatidylinositol 3-KinasesAlpha acid glucosidasefatty acid oxidationglutamineglycogen supercompensationglycolysisinsulin action

Identifiers

PMID34506219
PMCPMC9196658
OpenAlexW3197392489

What OpenQuestion holds

Textmetadata
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.