Agrp neurons mediate Sirt1’s action on the melanocortin system and energy balance: roles for Sirt1 in neuronal firing and synaptic plasticity - Dietrich, M O; Antunes, C; Geliang, G; Liu, Z W; Borok, E; Nie, Y; Xu, A W; Souza, D O; Gao, Q; Diano, S; Gao, X B; Horvath, T L (J Neurosci, 2010)