Editorial
Copyright ©The Author(s) 2016.
World J Gastrointest Pathophysiol. Feb 15, 2016; 7(1): 17-26
Published online Feb 15, 2016. doi: 10.4291/wjgp.v7.i1.17
Figure 1
Figure 1 Intracellular methionine metabolism. Chronic alcohol consumption causes SAM deficiency, but enhancement of homocysteine and SAH. MAT: Methionine adenosyl-transferase; SAM: S-adenosylmethionine; SAH: S-adenosylhomocysteine; Hcy: Homocysteine; CBS: Cystathionine beta synthase; SAHH: S-adensylmonocysteine hydrolase; MS: Methionine synthase; BHMT: Betaine-homocysteine methyltransferase.
Figure 2
Figure 2 S-adenosylmethionine-dependent methylation reactions are required for protein phosphatase 2A activation, which dephosphorylates (inhibits) hormone sensitive lipase. Chronic alcohol consumption induces intracellular hypomethylation status in adipocytes, which suppresses PP2A activity, leading to uncontrolled HSL activation. SAM: S-adenosylmethionine; Me: Methyl group; PP2A: Protein phosphatase 2A; HSL: Hormone sensitive lipase.