What is the function of ApoE in our bodies?

ApoE is related to cholesterol transport throughout the body, so it can be made in the liver as well as in the brain. It is what truly carries around our “good” cholesterol from the liver, throughout the rest of our body, and into our brains, where our brain uses it, or all of our cells use it, to build the material of our bodies. There is an association between certain versions of ApoE and cholesterol use within the brain.