Immunolocalization of high-density lipoproteins in arterial walls of rats

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題名:	Immunolocalization of high-density lipoproteins in arterial walls of rats
作者:	Yang, V.C.a , Lee, T.Y.a, Hwang, G.Y.a, Kao, C.H.b, Chen, J.K
貢獻者:	Department of Life Science, Tunghai University
關鍵詞:	Arterial wall;Atherosclerosis;High- cholesterol diet;High-density lipoprotein;Immunolocalization
日期:	1999
上傳時間:	2013-05-14T09:01:01Z (UTC)
摘要:	The inverse correlation between serum high-density lipoprotein (HDL) levels and coronary heart disease in humans suggests that HDL has a protective effect against the development of atherosclerosis. However, there is a lack of data concerning its distribution across the arterial wall. In order to detect this lipoprotein, we performed immunogold labeling on ultrathin sections of L.R. White embedded rat arterial tissue. Electron microscopic examination revealed that HDL was localized in the cytoplasm of the endothelial cells and the smooth muscle cells, but not in the nucleus or other organelles. The HDL was also present in the subendothelial space, the extracellular matrix as well as the intercellular clefts between the endothelial cells. Quantitative study revealed that rats on a high cholesterol diet for one month have more immunogold labeling (P < 0.05) in the subendothelial space, the smooth muscle cells and the extracellular matrix as compared to rats on a normal diet. After 12 months of normal diet, the intracellular labeling was significantly increased (P < 0.05) in the endothelial cells and the smooth muscle cells as compared to 1 month on the normal diet. The increase was greater (P < 0.05) for the high-cholesterol diet than for the normal diet treatment.
關聯:	Atherosclerosis Volume 142, Issue 2, February 1999, Pages 269-277
顯示於類別:	[生命科學系所] 期刊論文

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