Cited by 35Muscle Physiology and DisordersHigh Altitude and HypoxiaCurcumin's Biomedical Applications

High Altitude Mediated Skeletal Muscle Atrophy: Protective Role of Curcumin

Chaudhary, Pooja, Sharma, Yogendra Kumar, Sharma, Shivani, Singh, Som Nath, Suryakumar, Geetha·2019·Biochimie

Abstract

Chronic hypobaric hypoxia induced muscle atrophy results in decreased physical performance at high altitude. Curcumin has been shown to have muscle sparing effects under cachectic conditions. However, the protective effects of curcumin under chronic hypobaric hypoxia have not been studied till now. Therefore, the present study aims at evaluating the effects of curcumin administration on muscle atrophy under chronic hypobaric hypoxia. Male Sprague Dawley rats were divided into four groups: Control (C)-normoxia exposed, Control Treated (CT)-normoxia exposed and administered with curcumin at a dose of 100 mg/kg body weight for 14 days, Hypoxia (H)-exposed to hypobaric hypoxia for 14 days and Hypoxia Treated (HT)-exposed to hypobaric hypoxia and administered with curcumin for 14 days. Oxidative stress, muscle protein degradation, proteolytic pathways, myosin heavy chain (MHC), CPK activity and muscle histology were performed in gastrocnemius muscle samples of the exposed rats. In addition, fatigue time on treadmill running was also evaluated to observe the effects of curcumin administration on physical performance of the rats. As previously shown, hypobaric hypoxia increased muscle protein degradation via upregulated calpain and ubiquitin-proteolytic pathways. An enhanced oxidative stress has been linked to upregulation of these pathways under hypoxic conditions. Curcumin administration resulted in reduced oxidative stress as well as reduced activity of the proteolytic pathways in HT group as compared to H group thereby resulting in reduced muscle protein degradation under hypobaric hypoxia. Histology of rat muscle revealed an increased number of muscle fibres in HT as compared to H group. Thus, increased number of muscle fibres and decreased muscle proteolysis following curcumin administration, lead to enhanced muscle mass under hypobaric hypoxia resulting in improved physical performance of the rats.

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Crossref · 10.1016/j.biochi.2018.10.012

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  • Curcumin increases number of muscle fibers and decreases muscle fibers proteolysis in SD rats under hypobaric hypoxia, leading to enhanced muscle mass and improved physical performance.

    “Curcumin increases the number of muscle fibers and decreases muscle fibers proteolysis in SD rats under hypobaric hypoxia, leading to enhanced muscle mass and improved physical performance [85].”

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Authors
Chaudhary, P., Sharma, Y. K., Sharma, S., Singh, S. N., & Suryakumar, G.
Affiliations
Defence Institute of Physiology and Allied Sciences (IN)
Corresponding author
Suryakumar, Geetha
Venue
Biochimie
Publisher
Elsevier BV
Published
2019-01
Volume
156
Pages
138-147
ISSN
  • 0037-9042 (ISSN-L)
  • 0300-9084
OpenAlex
W2895897807
Cited by
35
References
53
Citations by year
2026: 2 · 2025: 3 · 2024: 3 · 2023: 5 · 2022: 7 · 2021: 7 · 2020: 5 · 2019: 2 · 2018: 1
FWCI
1.33
Type
journal article
Language
en
Open access
closed
Locations
  • Biochimie (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Defence Research and Development Organisation
  • Ministry of Defence
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Muscle Physiology and Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › High Altitude and Hypoxia
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Medicine › Curcumin's Biomedical Applications
Keywords
curcumin, skeletal muscle atrophy, hypobaric hypoxia, high altitude, muscle protein degradation, calpain, ubiquitin-proteasome system, oxidative stress, myosin heavy chain, creatine kinase, muscle fiber number, physical performance, gastrocnemius
MeSH terms
Altitude, Altitude Sickness, Animals, Hypoxia, Curcumin, Male, Muscular Atrophy, Rats, Sprague-Dawley, Rats

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