high-density lipoprotein cholesterol

HDL is mainly synthesized in the liver, and its main physiological function is to transport phospholipids and cholesterol. High-density lipoprotein is an anti-atherosclerotic lipoprotein that is a protective factor for coronary heart disease. It can promote the elimination of cholesterol in peripheral tissues and prevent the risk of atherosclerosis. The cholesterol carried by the high-density lipoprotein molecule is the endogenous cholesterol ester that is transported in the reverse direction, and is transported to the liver to remove the blood. High-density lipoprotein takes up cholesterol from the cell membrane, catalyzes cholesterol esters via lecithin cholesterol acyltransferase, and then transfers the carried cholesterol ester to very low-density lipoprotein and low-density lipoprotein. High-density lipoproteins contain 20% to 30% of total human cholesterol. Basic Information Specialist classification: cardiovascular examination classification: biochemical examination Applicable gender: whether men and women apply fasting: fasting Analysis results: Below normal: Common in cerebrovascular disease coronary heart disease, hypertriglyceridemia, liver damage such as acute and chronic hepatitis, cirrhosis, liver cancer diabetes, smoking, lack of exercise. Normal value: High-density lipoprotein cholesterol (male: 0.9-1.83mmol/L High-density lipoprotein cholesterol (female): 1.1-2.0mmol/L Above normal: Primary high HDL (familial hyperalpha-lipoproteinemia). negative: Positive: Tips: The first night of the exam must be a good rest, entertainment until midnight or even overnight, the next morning check high blood pressure, high blood lipids. Normal value Male <40 years old 0.9 ~ 1.83mmol / L (30 ~ 59mg / dl); Female <40 years old 1.1 ~ 2.0mmol / L (33 ~ 77mg / dl). Clinical significance Abnormal result The most important clinical value of the increase is the ability to transfer the foam cells of atherosclerotic plaque to the liver, which can be seen in primary hyper-HDL (familial hyper-alpha-lipoproteinemia) and found in this group. There are many longevity people. Those who receive estrogen insulin or certain drugs (such as niacin, vitamin E, heparin, etc.) can also increase, astaxanthin can significantly increase human high-density lipoprotein cholesterol. Reduce common in cerebrovascular disease coronary heart disease, hypertriglyceridemia, liver function damage such as acute and chronic hepatitis, cirrhosis, liver cancer diabetes, smoking, lack of exercise. Its reduction can be used as a risk indicator for coronary heart disease. High results may be diseases: obesity, metabolic syndrome, hereditary obesity, dyslipidemia, phosphatidylcholine-cholesterol acyltransferase deficiency in the elderly At the time of examination: the test should be carried out under the condition that the physiological and pathological conditions are relatively stable, and there should be no acute attack within 4-6 weeks. Before the test: Do not take certain drugs, such as birth control pills, certain antihypertensive drugs, etc., which may affect blood lipid changes, resulting in errors in testing. The first day of the inspection, after 8:00 pm, fasting, can not help but water. The original regular diet should be maintained before blood draw and the body weight should be kept constant. On the first night of the examination, you must rest well, entertain until midnight and even overnight. Check the blood pressure and blood lipids the next morning. Inspection process Inspection method: draw blood and check blood lipids. Not suitable for the crowd no. Adverse reactions and risks no.