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RSS FeedsMarine Drugs, Vol. 17, Pages 380: Omega-3 Fatty Acids-Enriched Fish Oil Activates AMPK/PGC-1? Signaling and Prevents Obesity-Related Skeletal Muscle Wasting (Marine Drugs)

 
 

25 june 2019 14:04:11

 
Marine Drugs, Vol. 17, Pages 380: Omega-3 Fatty Acids-Enriched Fish Oil Activates AMPK/PGC-1? Signaling and Prevents Obesity-Related Skeletal Muscle Wasting (Marine Drugs)
 


Obesity is known to cause skeletal muscle wasting. This study investigated the effect and the possible mechanism of fish oil on skeletal muscle wasting in an obese rat model. High-fat (HF) diets were applied to induce the defects of lipid metabolism in male Sprague-Dawley rats with or without substitution of omega-3 fatty acids-enriched fish oil (FO, 5%) for eight weeks. Diets supplemented with 5% FO showed a significant decrease in the final body weight compared to HF diet-fed rats. The decreased soleus muscle weights in HF diet-fed rats could be improved by FO substitution. The decreased myosin heavy chain (a muscle thick filament protein) and increased FOXO3A and Atrogin-1 (muscle atrophy-related proteins) protein expressions in soleus muscles of HF diet-fed rats could also be reversed by FO substitution. FO substitution could also significantly activate adenosine monophosphate (AMP)-activated protein kinase (AMPK) phosphorylation, peroxisome-proliferator-activated receptor-γ (PPARγ) coactivator 1α (PGC-1α), and PPARγ protein expression and lipoprotein lipase (LPL) mRNA expression in soleus muscles of HF diet-fed rats. These results suggest that substitution of FO exerts a beneficial improvement in the imbalance of lipid and muscle metabolisms in obesity. AMPK/PGC-1α signaling may play an important role in FO-prevented obesity-induced muscle wasting.


 
85 viewsCategory: Biochemistry, Molecular Biology, Pharmacology
 
Marine Drugs, Vol. 17, Pages 377: Probing Multi-Target Action of Phlorotannins as New Monoamine Oxidase Inhibitors and Dopaminergic Receptor Modulators with the Potential for Treatment of Neuronal Disorders (Marine Drugs)
Marine Drugs, Vol. 17, Pages 379: A New Meroterpene, A New Benzofuran Derivative and Other Constituents from Cultures of the Marine Sponge-Associated Fungus Acremonium persicinum KUFA 1007 and Their Anticholinesterase Activities (Marine Drugs)
 
 
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