In Dr. Esselstyn's talk here in Arizona a couple of weeks ago, he discussed the progenitor cells. The typical SAD affects them in the same way that it affects the endothelial cells from what I understood. And, like the ability of the body to heal itself, the progenitor cells do better when in a body fed no oil, whole foods, plant-based. Whether more of the endothelial progenitor cells are produced, I couldn't tell you.
He actually talked about four systems to do with heart health and the production of nitric oxide: the endothelium, the endothelial progenitor cells, something else I can't recall (and didn't write down), and HDL. The foods that damage every one of these systems are:
Oil & fats
Ah, my notes do say that green leafy vegetables increase the endothelial progenitor cells in the bone marrow. This is why Ann pushes kale, collards, and other green leafies in all the meals, even breakfast.
On a final note, I absolutely love one quote from Dr. Esselstyn's presentation.
Heart disease is a benign food-borne illness.