ArticleInternational journal of molecular sciences2018
AMPK Mediates Muscle Mass Change But Not the Transition of Myosin Heavy Chain Isoforms during Unloading and Reloading of Skeletal Muscles in Mice.
Article in International journal of molecular sciences, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 19 citations in OpenAlex.
- Natural extracts for the treatment of atherosclerosis.Molecular biology reports · 2026Review
- Mitochondrial Impairment in Unloaded Postural Muscle: Mechanisms Driving Loss of Muscle Function and Mass.Antioxidants (Basel, Switzerland) · 2026Review
- A Contemporary Perspective on Long-Term Complications of Bariatric Surgery.Obesity surgery · 2026Review
- The role of different physical exercises as an anti-aging factor in different stem cells.Biogerontology · 2025Review
- Skeletal muscle-specific inducible AMPKα1/α2 knockout mice develop muscle weakness, glycogen depletion, and fibrosis that persists during disuse atrophy.American journal of physiology. Endocrinology and metabolism · 2024Article
- DNA-PKcs regulates myogenesis in an Akt-dependent manner independent of induced DNA damage.Cell death and differentiation · 2023Article
- Metformin Pre-Treatment as a Means of Mitigating Disuse-Induced Rat Soleus Muscle Wasting.Current issues in molecular biology · 2023Article
- Skeletal Muscle Recovery from Disuse Atrophy: Protein Turnover Signaling and Strategies for Accelerating Muscle Regrowth.International journal of molecular sciences · 2020Review
- Neutralizing mitochondrial ROS does not rescue muscle atrophy induced by hindlimb unloading in female mice.Journal of applied physiology (Bethesda, Md. : 1985) · 2020Article
- AMP-Activated Protein Kinase Signalling.International journal of molecular sciences · 2019Article
- AMP-Activated Protein Kinase as a Key Trigger for the Disuse-Induced Skeletal Muscle Remodeling.International journal of molecular sciences · 2018Review
- Effect of Oral Lactate Administration on Skeletal Muscle Mass in Mice Under Different Loading Conditions.In vivo (Athens, Greece)Article
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
5'AMP-activated protein kinase (AMPK) plays an important role in the regulation of skeletal muscle mass and fiber-type distribution. However, it is unclear whether AMPK is involved in muscle mass change or transition of myosin heavy chain (MyHC) isoforms in response to unloading or increased loading. Here, we checked whether AMPK controls muscle mass change and transition of MyHC isoforms during unloading and reloading using mice expressing a skeletal-muscle-specific dominant-negative AMPKα1 (AMPK-DN). Fourteen days of hindlimb unloading reduced the soleus muscle weight in wild-type and AMPK-DN mice, but reduction in the muscle mass was partly attenuated in AMPK-DN mice. There was no difference in the regrown muscle weight between the mice after 7 days of reloading, and there was concomitantly reduced AMPKα2 activity, however it was higher in AMPK-DN mice after 14 days reloading. No difference was observed between the mice in relation to the levels of slow-type MyHC I, fast-type MyHC IIa/x, and MyHC IIb isoforms following unloading and reloading. The levels of 72-kDa heat-shock protein, which preserves muscle mass, increased in AMPK-DN-mice. Our results indicate that AMPK mediates the progress of atrophy during unloading and regrowth of atrophied muscles following reloading, but it does not influence the transition of MyHC isoforms.
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