OBJECTIVE Phospholipid transfer protein (PLTP) plays an important role in lipoprotein metabolism and atherosclerosis. PLTP gene knockout (KO) mice show significant reduction of plasma cholesterol levels. Because small intestine is one of the major tissue expressing PLTP, we hypothesize that PLTP deficient small intestine absorbs less cholesterol, thus contributing to the diminishing of choleste...

The capacity of natural zeolites to absorb anionic pollutants from water is limited. This limitation can be overcome by modifying the surface of the minerals with organic cations. In this research, natural zeolite, Analcime was used for removing the nitrate and nitrite impurities from aqueous solutions. The surface of the zeolite was modified by tetramethylammonium and tetraethylammonium ions t...