Pownall Lab

Atherosclerosis and Lipoprotein Research Lab

About Our Lab

The Laboratory of Atherosclerosis and Lipoprotein Research seeks to identify the mechanisms underlying atherogenesis and how to prevent it. Foremost among these mechanisms is reverse cholesterol transport (RCT), i.e., transfer of cholesterol from the arterial wall and other peripheral tissues to the liver for disposal. The major RCT mediator is high density lipoproteins (HDL); thus the lab’s focus is HDL biogenesis, the mechanisms by which distinct HDL subspecies are formed, and the role of specific amino acids within the major HDL proteins, apolipoprotein AI, in HDL formation. Lab staff also discovered an alternative RCT pathway and plan to further validate this pathway and determine whether it is impaired in patients with atherosclerosis. Testing a newly-identified cholesterol-lowering bacterial protein will aid in the design of new anti-atherogenic therapies that enhance RCT. On the clinical side, the lab participates in a large trial (LookAhead) of the effects of weight loss among obese, diabetic patients.

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Research in Methodology

Clinical Research in Methodology