Paul Saladino· MD
cholesterol ester and triglycerides they get on and off the buses before you even get to the bus station in chicago some of the passengers get off the bus and go to hdl from the micron remnant and some passengers get on but a lot of the passengers most of the passengers get onto the big bus as you eat food and it goes to the bus station in the liver then the liver sends out a bus called vldl very low density lipoprotein again we know which chylomicrons identify very low density lipoprotein and then the the ldl moves through your bloodstream where the same things happen c-e-t-p cholesterol that's for transfer protein helps triglycerides and cholesterol esters move from hdl uh to vldl and triglycerides move from vldl to hdl and then it gets smaller and smaller because it drops things off at your cells it drops off cholesterol for cell membranes so your cell membranes can remain as viscous and as fluid as they want to be and it becomes smaller and smaller you have this idl intermittent intermediate density of a protein and then ldl the one everyone thinks of and the one that we colloquially think of as cholesterol right here ldl and then you have small dense ldl and both of those small dense ldl and ldl return to the liver you see the envelope proteins here as well e c a1 b100 b48 we talked about that earlier this is a bus system but just like buses are critical for a city for passengers to move around a city lipoproteins are critical for your body