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Foam cell formation in atherosclerosis: HDL and macrophage reverse cholesterol transport
1.  Southern Polytechnic State University, Marietta, GA 30060, United States 
2.  Southern Polytechnic State University, Marietta, GA 300602896 
3.  Texas Tech University, Lubbock, TX 79409, United States 
We propose a model of foam cell formation accounting for macrophage RCT. This model is presented as a system of nonlinear ordinary differential equations. Motivated by experimental observations regarding time scales for oxidation of lipids and MRCT, we impose a quasisteady state assumption and analyze the resulting systems of equations. We focus on the existence and stability of equilibrium solutions as determined by the governing parameters with the results interpreted in terms of their potential biomedical implications.
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