the secretion of newly synthesized apolipoprotein e ( apo e ) by human monocyte-derived macrophages ( hmd macrophages ) was measured in the medium of cells which had been incubated for 24 h with or without either native or acetylated low-density lipoproteins ( ldl or acldl , respectively ) , and subsequently with [ 35s ] methionine in the presence of high-density lipoproteins ( hdl , 350 micrograms/ml ) for 24 h , by isolating the lipoprotein fraction by centrifugation for 48 h at a density adjusted with kbr to 1.21 g/ml ( d = 1.21 ) .
C0003595
apolipoprotein e
C0023820
lipoprotein