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n-3 Fatty acids and rosiglitazone improve insulin sensitivity through additive stimulatory effects on muscle glycogen synthesis in mice fed a high-fat diet
Open accessAbstract
Aims/hypothesis Fatty acids of marine origin, i.e. docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA) act as hypolipidaemics, but they do not improve glycaemic control in obese and diabetic patients. Thiazolidinediones like rosiglitazone are specific activators of peroxisome proliferator-activated receptor gamma, which improve whole-body insulin sensitivity. We hypothesised that a combined treatment with a DHA and EPA concentrate (DHA/EPA) and rosiglitazone would correct, by complementary additive mechanisms, impairments of lipid and glucose homeostasis in obesity.Methods Male C57BL/6 mice were fed a corn oil-based high-fat diet. The effects of DHA/EPA (replacing 15% dietary lipids), rosiglitazone (10 mg/kg diet) or a combination of both on body weight, adiposity, metabolic markers and adiponectin in plasma, as well as on liver and muscle gene expression and metabolism were analysed. Euglycaemic-hyperinsulinaemic clamps were used to characterise the changes in insulin sensitivity. The effects of the treatments were also analysed in dietary obese mice with impaired glucose tolerance (IGT).Results DHA/EPA and rosiglitazone exerted additive effects in prevention of obesity, adipocyte hypertrophy, low-grade adipose tissue inflammation, dyslipidaemia and insulin resistance, while inducing adiponectin, suppressing hepatic lipogenesis and decreasing muscle ceramide concentration. The improvement in glucose tolerance reflected a synergistic stimulatory effect of the combined treatment on muscle glycogen synthesis and its sensitivity to insulin. The combination treatment also reversed dietary obesity, dyslipidaemia and IGT.Conclusions/interpretation DHA/EPA and rosiglitazone can be used as complementary therapies to counteract dyslipidaemia and insulin resistance. The combination treatment may reduce dose requirements and hence the incidence of adverse side effects of thiazolidinedione therapy.
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“For example, supplementation of eicosapentaenoate and DHA protects mice from HF-induced body weight gain, dyslipidemia, and glucose intolerance (23).”
From Mitochondrial Fission Contributes to Mitochondrial Dysfunction and Insulin Resistance in Skeletal Muscle (2012) · cites this paper as [23]
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Fish Oil Prevents Insulin Resistance Induced by High-Fat Feeding in Rats
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Jheng, H.-F., Tsai, P.-J., Guo, S.-M., Kuo, L.-H., Chang, C.-S., Su, I.-J., Chang, C.-R., & Tsai, Y.-S. (2012) · Molecular and Cellular Biology · doi:10.1128/mcb.05603-11 · Cited by 650
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Omega-3 fatty acids in obesity and metabolic syndrome: A mechanistic update
Albracht-Schulte, K., Kalupahana, N. S., Ramalingam, L., Wang, S., Rahman, S. M., Robert-McComb, J., & Moustaid-Moussa, N. (2018) · The Journal of Nutritional Biochemistry · doi:10.1016/j.jnutbio.2018.02.012 · Cited by 355
“Omega-3 PUFA supplementation prevents insulin resistance in muscle of rats fed an HF diet [142], partly by improving glycogen synthesis [143].”
BackgroundResult(n-3) Fatty Acids Alleviate Adipose Tissue Inflammation and Insulin Resistance: Mechanistic Insights
Kalupahana, N. S., Claycombe, K. J., & Moustaid-Moussa, N. (2011) · Advances in Nutrition · doi:10.3945/an.111.000505 · Cited by 305
Metadata
- Authors
- Kuda, O., Jelenik, T., Jilkova, Z., Flachs, P., Rossmeisl, M., Hensler, M., Kazdova, L., Ogston, N., Baranowski, M., Gorski, J., Janovska, P., Kus, V., Polak, J., Mohamed-Ali, V., Burcelin, R., Cinti, S., Bryhn, M., & Kopecky, J.
- Affiliations
- Czech Academy of Sciences (CZ)
- University College London (GB)
- Medical University of Białystok (PL)
- Charles University (CZ)
- Inserm (FR)
- Marche Polytechnic University (IT)
- Venue
- Diabetologia
- Published
- 2009-03-11
- Volume
- 52
- Issue
- 5
- Pages
- 941-951
- ISSN
- 0012-186X (ISSN-L)
- 1432-0428
- OpenAlex
- W2023838856
- Cited by
- 142
- References
- 50
- Citations by year
- 2026: 2 · 2024: 3 · 2023: 5 · 2022: 6 · 2021: 6 · 2020: 9 · 2019: 5 · 2018: 10 · 2017: 6 · 2016: 8 · 2015: 13 · 2014: 10 · 2013: 16 · 2012: 11
- FWCI
- 13.88
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Licence
- www.springer.com/tdm (tdm)
- Locations
- Diabetologia (publishedVersion)
- PubMed (publishedVersion)
- HAL (submittedVersion)
- UCL Discovery (University College London) (submittedVersion)
- Funders
- European Commission (LSHMCT-2004-005272)
- Ministerstvo Školství, Mládeže a Tělovýchovy (1 M6837805002, AV0Z50110509)
- Grantová Agentura České Republiky (GA303/08/0664, 1M6837805002, AV0Z50110509)
- Topics
- Health Sciences › Nursing › Nutrition and Dietetics › Fatty Acid Research and Health
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Peroxisome Proliferator-Activated Receptors
- Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Adipokines, Inflammation, and Metabolic Diseases
- Keywords
- omega-3 fatty acids, docosahexaenoic acid, eicosapentaenoic acid, rosiglitazone, thiazolidinediones, insulin sensitivity, muscle glycogen synthesis, high-fat diet, obesity, insulin resistance, impaired glucose tolerance, dyslipidemia, adiponectin, hepatic lipogenesis, ceramide, adipose tissue inflammation, PPARγ, combination therapy
- MeSH terms
- Rosiglitazone, Animals, Corn Oil, Dietary Fats, Docosahexaenoic Acids, Glycogen, Hypoglycemic Agents, Insulin, Male, Mice, Inbred C57BL, Eicosapentaenoic Acid, Fatty Acids, Omega-3, Glucose Intolerance, Muscle, Skeletal, Thiazolidinediones, Mice
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