Ghrelin and des-acyl ghrelin promote differentiation and fusion of C2C12 skeletal muscle cells - Filigheddu, N; Gnocchi, V F; Coscia, M; Cappelli, M; Porporato, P E; Taulli, R; Traini, S; Baldanzi, G; Chianale, F; Cutrupi, S; Arnoletti, E; Ghe, C; Fubini, A; Surico, N; Sinigaglia, F; Ponzetto, C; Muccioli, G; Crepaldi, T; Graziani, A (Mol Biol Cell, 2007)