The Differentiation of MesenchymalStem Cell Derived from the 间充质干细胞的分化.pptVIP

Derived lipids These are substance derived from hydrolysis of neutral fats, oil and butter into fatty acids saturated or unsaturated) and glycerol and also the associated compounds as: Sterol (cholesterol, bile salt and vitD3) Steroid (male female sex hormone and Super-renal cortical hormone Fat soluble vitamins Keton bodies Sterol Cholesterol It is derived lipids present only as animal source cholesterol is widely distributed in tissue e.g brain, nerve suprarenal cortex kidney and carpus leuteum Cholesterol occurs in the blood either free or conjugated form normally its level is 150-250 mg% cholesterol is the presursose of vit D3 and steroid hormones and also can be converted into bile salt Cholesterol is excreta in billiary secretion Cholesterol can be precipitated in gall stones or can be precipitated in the intima of the blood vessels leading to atherosclerosis, hypertension and coronary heart disease Cholesterol Steroids ? Super-renal cortical hormone Glucocorticoid Controls carbohydrate metabolism Has anti-inflammatory effect Has immune suppression effect Mineralocorticoids It increases reabsorption of Na+, Cl-, and water in proximal convoluted tubule of the kidney. increase K+ excretion Thank You! L/O/G/O lipids By Dr. Batoul Izzularab 4 3 Simple lipids Triglycerides ? Triglyceride is a neutral fat are ester of fatty acids with glycerol. ? Simple lipids Neutral fats are oil and butter which are liquid or solid at room temperature due to the presence of unsaturated and saturated fatty acids respectively Neutral fats are insoluble in water, soluble in fat solvents Neutral fats react with alkalies (NAOH) producing soap and glycerol this process known as saponification. Simple lipids Simple lipids Neutral fats are hydrolyzed by pancreatic lipase into glycerol and fatty acid. Simple lipids: Vegetable oils (cotton seed oil, sun flower oil and olive oil) that contain unsaturated fatty acids, the latter can be saturated (hydrogenated)