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Title: Modification of platelet shape change parameter by modified phospholipids in oxidized LDL
Authors: Werasak Sutipornpalangkul
Supeenun Unchen
Yupin Sanvarinda
Udom Chantharaksri
Mahidol University
Faculty of Medicine, Siriraj Hospital, Mahidol University
Keywords: Medicine
Issue Date: 1-Feb-2009
Citation: Journal of the Medical Association of Thailand. Vol.92, No.2 (2009), 229-235
Abstract: Background: It is believed that the oxidatively modified lipoproteins play a critical role in activating platelets and is a contributing factor in the etiology of a number of cardiovascular-related diseases. Objective: Identify the active component(s) of oxidized LDL that initiated shape change in plasma-free human platelets prepared by a gel filtration method. Material and Method: Shape change parameter of platelets was monitored following exposure platelets to LDL, copper sulfate-oxidized LDL, and different types of lipids extracted of the corresponding LDL. Results: Oxidized LDL, but not native LDL, increased the shape-change parameter in a concentration-dependent manner. Specifically, phosphatidyl serine from oxidized LDL was responsible for this effect. Conclusion: Oxidized phospholipids generated during the oxidative modification of LDL are likely to be the active components responsible for changes in platelet function.
ISSN: 01252208
Appears in Collections:Scopus 2006-2010

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