Flu vaccine for muscle atrophy and wasting (Are you fooling us? Not really, that is what the scientific evidence says!): Influenza A(H1N1)/flu vaccine  increases the expression of FGF19 and its receptor ß-Klotho, phosphorylates ERK1/2 and S6K1, decreases the expression of tumor suppressors  genes, promotes regeneration of muscle cells and hypertrophy of skeletal muscle, and reverses muscular atrophy and wasting via upregulation of its target gene, 29/July/2018, 11.18 pm