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一、血脂的含义与其功能血脂是指血浆或血清中的中性脂肪和类脂。中性脂肪主要是甘油三酯,类脂主要是磷脂、非酯化胆固醇、胆固醇酯及少量非酯化脂肪酸。胆固醇占血脂1/3,其中2/3为胆固醇酯,1/3为非酯化胆固醇。甘油三酯占血脂1/4,磷脂也占血脂1/3,而非酯化脂肪酸占血脂5～10%。血脂在人体正常生理功能是合成激素和生物活性物质,维持细胞正常代谢和细胞形态的稳定,维持神经兴奋与传导及供给能量与贮存能量。二、血脂代谢异常与动脉粥样硬化关系所谓脂肪代谢异常是指血清胆固醇(TC)或甘油三酯(TG)水平过高或高密度脂蛋白(HDL)水平过低,习惯上称为高脂血
First, the meaning and function of blood lipids Blood lipids or serum refers to the neutral fat and lipids. Neutral lipids are mainly triglycerides, lipids are mainly phospholipids, non-esterified cholesterol, cholesterol esters and a small amount of non-esterified fatty acids. Cholesterol accounts for 1/3 of the blood fat, of which 2/3 is cholesterol ester and 1/3 is non-esterified cholesterol. Triglycerides accounted for 1/4 of blood lipid, phospholipids also accounted for 1/3 of blood fat, while non-esterified fatty acids accounted for 5 to 10% of blood lipids. Lipids in the body’s normal physiological function is the synthesis of hormones and bioactive substances, to maintain normal cell metabolism and cell morphology, maintain nerve excitation and conduction and supply energy and storage energy. Second, the abnormal lipid metabolism and atherosclerosis The so-called fat metabolism abnormalities refers to the level of serum cholesterol (TC) or triglyceride (TG) or high-density lipoprotein (HDL) is too low, habitually known as high-fat blood