Betaine improves nonalcoholic fatty liver and associated hepatic insulin resistance: a potential mechanism for hepatoprotection by betaine - Kathirvel, E; Morgan, K; Nandgiri, G; Sandoval, B C; Caudill, M A; Bottiglieri, T; French, S W; Morgan, T R (Am J Physiol Gastrointest Liver Physiol, 2010)