Cited by 42Sirtuins and Resveratrol in MedicineAdipose Tissue and MetabolismMetabolism, Diabetes, and Cancer

Resveratrol improves high-fat diet induced insulin resistance by rebalancing subsarcolemmal mitochondrial oxidation and antioxidantion

Haohao, Zhang, Guijun, Qin, Juan, Zheng, Wen, Kong, Lulu, Chen·2015·Journal of Physiology and Biochemistry

Abstract

Although resveratrol (RES) is thought to be a key regulator of insulin sensitivity in rodents, the exact mechanism underlying this effect remains unclear. Therefore, we sought to investigate how RES affects skeletal muscle oxidative and antioxidant levels of subsarcolemmal (SS) and intermyofibrillar (IMF) mitochondrial populations in high-fat diet (HFD)-induced insulin resistance (IR) rats. Systemic and skeletal muscle insulin sensitivity together with expressions of several genes related to mitochondrial biogenesis and skeletal muscle SIRT1, SIRT3 protein levels were studied in rats fed a normal diet, a HFD, and a HFD with intervention of RES for 8 weeks. Oxidative stress levels and antioxidant enzyme activities were assessed in SS and IMF mitochondria. HFD fed rats exhibited obvious systemic and skeletal muscle IR as well as decreased SIRT1 and SIRT3 expressions, mitochondrial DNA (mtDNA), and mitochondrial biogenesis (p < 0.05). Both SS and IMF mitochondria demonstrated elevated reactive oxygen species (ROS) and malondialdehyde (MDA) levels. In addition, SS mitochondrial antioxidant enzyme activities were significantly lower, while IMF mitochondrial antioxidant enzyme activities were higher (p < 0.05). By contrast, RES treatment protected rats against diet induced IR, increased SIRT1 and SIRT3 expressions, mtDNA, and mitochondrial biogenesis (p < 0.05). Moreover, the activities of SS and IMF mitochondrial antioxidant enzymes were increased, which reverted the increased SS mitochondrial oxidative stress levels (p < 0.05). This study suggests that RES ameliorates insulin sensitivity consistent with improved SIRT3 expressions and rebalance between SS mitochondrial oxidative stress and antioxidant competence in HFD rats.

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Crossref · 10.1007/s13105-015-0392-1

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Authors
Haohao, Z., Guijun, Q., Juan, Z., Wen, K., & Lulu, C.
Affiliations
  • First Affiliated Hospital of Zhengzhou University (CN)
  • Wuhan Union Hospital (CN)
Corresponding author
Lulu, Chen
Venue
Journal of Physiology and Biochemistry
Published
2015-02-17
Volume
71
Issue
1
Pages
121-131
ISSN
  • 1138-7548 (ISSN-L)
  • 1877-8755
OpenAlex
W1982445419
Cited by
42
References
29
Citations by year
2025: 4 · 2024: 1 · 2023: 5 · 2022: 2 · 2021: 3 · 2020: 4 · 2019: 6 · 2018: 5 · 2017: 6 · 2016: 3 · 2015: 3
FWCI
2.83
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Physiology and Biochemistry (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Natural Science Foundation of China (81300656)
Topics
  • Health Sciences › Medicine › Geriatrics and Gerontology › Sirtuins and Resveratrol in Medicine
  • Health Sciences › Medicine › Physiology › Adipose Tissue and Metabolism
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Metabolism, Diabetes, and Cancer
Keywords
resveratrol, insulin resistance, high-fat diet, skeletal muscle, subsarcolemmal mitochondria, interfibrillar mitochondria, mitochondrial oxidative stress, antioxidant enzymes, SIRT1, SIRT3, mitochondrial biogenesis, mitochondrial DNA, reactive oxygen species, malondialdehyde
MeSH terms
Resveratrol, Animals, Antioxidants, DNA, Mitochondrial, Insulin, Insulin Resistance, Male, Mitochondria, Oxidation-Reduction, Stilbenes, Rats, Sprague-Dawley, Muscle, Skeletal, Rats, Sirtuin 1, Sirtuin 3, Diet, High-Fat

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