Omega-3 multiple effects increasing glucocorticoid-induced muscle atrophy: autophagic, AMPK and UPS mechanisms

Omega-3 的多重效应增加糖皮质激素引起的肌肉萎缩:自噬、AMPK 和 UPS 机制

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作者:Alan Fappi, Juliana de C Neves, Karine A Kawasaki, Luana Bacelar, Leandro N Sanches, Felipe P da Silva, Rubens Larina-Neto, Gerson Chadi, Edmar Zanoteli

Conclusion

N-3 supplementation increases muscle atrophy caused by DEXA in an autophagic, AMPK and UPS process.

Results

N-3 associated with DEXA increases atrophy (fibers 1 and 2A), FOXO3a, P-SMAD2/3, Atrogin-1/MAFbx (mRNA) expression, and autophagic protein markers (LC3II, LC3II/LC3I, LAMP-1 and acid phosphatase). Additionally, N-3 supplementation alone decreased P-FOXO3a, PGC1-alpha, and type 1 muscle fiber area.

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