Hyperlipidemia means elevated levels of fat in the blood. These disorders are classified as type I, III, IV or V. Although they can occur in all ages, they are more common in adults. Different types of hyperlipidemia appear at different ages.
Causes of Hyperlipidemia
The blood contains a variety of fats, or lipids, that provide energy and are building blocks for tissues and hormones. These lipids join to the blood proteins, forming lipoproteins, which also include cholesterol and triglycerides. The cholesterol is made up of high density lipoprotein (HDL), low density lipoprotein (LDL), and very low density lipoprotein (VLDL). When the low density lipoproteins are is excessive amounts, they may accelerate deposition of LDL onto artery walls, causing atherosclerosis. HDL's, or high density lipoproteins, on the other hand, helps to prevent the deposition of LDL on arterial walls. Hyperlipidemia may be inherited, or secondary to some other disorder.
Signs and Symptoms of Hyperlipidemia
Hyperlipidemia can lead to the development of yellowish nodules of fat, xanthomas or xanthelasmas, in the skin beneath eyes, elbows, knees and tendons. Some forms of hyperlipidemia can lead to and enlarged liver and spleen. Such enlargement can lead to discomfort or tenderness in the upper abdomen. Some forms of hyperlipidemia may be associated with the development of a whitish ring around the eye.
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Medical Content Last Updated on 07/12/2008
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