Absorption of lipids: Medium(6-10C)and short chain (2-4C)triglyceride Emulsification by bile salts Intestine mucosal cells Degradated by lipase FFA and glycerol transport portal vein →blood circulation
Absorption of lipids： Medium(6-10C) and short chain (2-4C) triglyceride Emulsification by bile salts Intestine mucosal cells Degradated by lipase FFA and glycerol transport portal vein blood circulation
Long chain fatty acids(12- epithelial cells (to 26C)+monoacylglycerol synthesize TG) epithelial cells (to cholesterol FFA synthesize CE) lysophosphatide FFA epithelial cells (to synthesize PL) TG、CE、P Apo(载脂蛋白) blood lymphatic ←☐(chylomicron,CM, circulation system
Long chain fatty acids (12- 26C)+monoacylglycerol epithelial cells （to synthesize TG） cholesterol + FFA epithelial cells （to synthesize CE） lysophosphatide + FFA epithelial cells （to synthesize PL） lymphatic system blood circulation (chylomicron, CM,) TG、CE、PL Apo（载脂蛋白）
Contents of lipid metabolism Concept,Classfication and Structure of Lipids Degradation and Biosynthesis of Lipids Factors Regulating Lipid Metabolism
Concept, Classfication and Structure of Lipids Degradation and Biosynthesis of Lipids Factors Regulating Lipid Metabolism Contents of lipid metabolism
Section 2. Fat metabolism 1. Fat mobilization and hydrolysis 2. Fatty acid β-oxidation 3. Ketone body formation 4. Fat synthesis Fatty acid and glycerol synthesis
1. Fat mobilization and hydrolysis 2. Fatty acid β-oxidation 3. Ketone body formation 4. Fat synthesis Fatty acid and glycerol synthesis
1.Fat mobilization and hydrolysis Fat mobilization (Lipolysis): The TG stored in the adipocytes are hydrolyzed by hormone-sensitive triacylglycerol lipase (HSL), produce free fatty acids(FFA)and glycerol,which are released into the blood,these process is called as fat mobilization
Fat mobilization (Lipolysis）: The TG stored in the adipocytes are hydrolyzed by hormone-sensitive triacylglycerol lipase (HSL), produce free fatty acids (FFA) and glycerol, which are released into the blood, these process is called as fat mobilization