Fig. 2.

Plasma decay and liver uptake of radiolabeled cholesterol from chylomicron-like emulsion particles in Abca1^−/− and Sr-b1^−/− mice. After tail vein injection of emulsion particles containing [³H]CO into Abca1^−/− (left panel; open squares) and Sr-b1^−/− (right panel; open squares) mice and their WT littermates (solid squares)(n = 5), plasma samples were obtained at the indicated times and plasma decay was determined (A). 2.5 h after injection, the percentage of the injected dose of ³H-cholesterol present in the liver was determined (B). Values are means ± SD.