Effect of five cysteine-containing compounds on three lipogenic enzymes in Balb/cA mice consuming high saturated fat diet

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Title:	Effect of five cysteine-containing compounds on three lipogenic enzymes in Balb/cA mice consuming high saturated fat diet
Authors:	殷梅津(YIN, MEI-CHIN)*
Contributors:	健康照護學院營養學系
Date:	2004-07
Issue Date:	2009-08-26 15:57:32 (UTC+8)
Abstract:	The in vivo effects of N-acetyl cysteine (NAC), S-allyl cysteine, S-ethy cysteine (SEC), S-methyl cysteine (SMC), and S-propyl cysteine (SPC) against hyperlipidemia development and oxidation stress in Balb/cA mice consuming a high saturated fat diet were examined. The influence of these agents on plasma levels of glucose, insulin, uric acid, TG, cholesterol, and the activity of three lipogenic enzymes—glucose-6-phosphate dehydrogenase, malic enzyme, and FA synthase—was determined. All mice consumed the coconut oil-basd, high saturated fat diet, water, and cysteine or one of the five cysteine-containing compounds for 4 wk. The diet with 18% saturated fat significantly elevated the activity of three lipogenic enzymes and significantly increased TG and cholesterol biosynthesis in plasma and liver (P<0.05). When compared with the water and cysteine groups, the treatments from five cysteine-containing agents significantly reduced high saturated fat diet-increased malic enzyme and FA synthase activities, and significantly lowered TG levels in plasma and liver (P<0.05); however, only NAC, SAC, and SMC treatments significantly reduced cholesterol levels in plasma and liver (P<0.05). The five cysteine-containing agents significantly restored high saturated fat diet-decreased glutathione peroxidase (GPX) activity in liver (P<0.05); however, only SMC and SPC significantly restored GPX activity in heart and kidney (P<0.05). These agents also significantly improved high saturated fat diet-related hyperglycemia, hyperuricemia, and oxidation stress (P<0.05). These data support the hypothesis that these compounds are potential multiply-protective agents for hyperlipidemia prevention or therapy.
Relation:	LIPIDS 39(9)843 ~848
Appears in Collections:	[Graduate Institute of Nutrition ] Journal articles

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