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How Do Elevated Triglycerides and Low HDL-Cholesterol Affect Inflammation and Atherothrombosis?
MedLine Citation:
PMID:  23881582     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
This review article summarizes recent research into the mechanisms as to how elevated levels of triglyceride (TG) and low levels of high- density- lipoprotein cholesterol (HDL-C) contribute to inflammation and atherosclerosis. Evidence supports the role of TG-rich lipoproteins in signaling mechanisms via apolipoproteins C-III and free fatty acids leading to activation of NFKβ, VCAM-1 and other inflammatory mediators which lead to fatty streak formation and advanced atherosclerosis. Moreover, the cholesterol content in TG-rich lipoproteins has been shown to predict CAD risk better than LDL-C. In addition to reverse cholesterol transport, HDL has many other cardioprotective effects which include regulating immune function. The "functionality" of HDL appears more important than the level of HDL-C. Insulin resistance and central obesity underlie the pathophysiology of elevated TG and low HDL-C in metabolic syndrome and type 2 diabetes. Lifestyle recommendations including exercise and weight loss remain first line therapy in ameliorating insulin resistance and the adverse signaling processes from elevated levels of TG-rich lipoproteins and low HDL-C.
Authors:
Francine K Welty
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Current cardiology reports     Volume:  15     ISSN:  1534-3170     ISO Abbreviation:  Curr Cardiol Rep     Publication Date:  2013 Sep 
Date Detail:
Created Date:  2013-07-24     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100888969     Medline TA:  Curr Cardiol Rep     Country:  United States    
Other Details:
Languages:  eng     Pagination:  400     Citation Subset:  IM    
Affiliation:
Beth Israel Deaconess Medical Center and Harvard Medical School, 375 Longwood Avenue, Room 433, Boston, MA, 02215, USA, fwelty@bidmc.harvard.edu.
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