Effects of cholesterol feeding on the morphology of red blood cells from wild-type and

SR-BI^−/− mice. Wild-type (panels A-B) and SR-BI^−/−(panels C,D) mice were fed normal, low-cholesterol chow (panels A,C) or 1% cholesterol–supplemented chow (panels B,D) for 3 months. Then, red blood cells were prepared and examined by transmission electron microscopy. Bar = 1 μm.