Insulin action in AgRP-expressing neurons is required for suppression of hepatic glucose production. by Könner, A, Janoschek, R, Plum, L, Jordan, S, Rother, E, Ma, X, Xu, C, Enriori, P, Hampel, B, Barsh, G, Kahn, C, Cowley, M, Ashcroft, F, Brüning, J