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  • Title: Atherosclerosis in transgenic mice overexpressing apolipoprotein A-II.
    Author: Warden CH, Hedrick CC, Qiao JH, Castellani LW, Lusis AJ.
    Journal: Science; 1993 Jul 23; 261(5120):469-72. PubMed ID: 8332912.
    Abstract:
    Concentrations of plasma high density lipoprotein (HDL) are inversely correlated with atherosclerotic coronary artery disease. The two most abundant protein constituents of HDL are apolipoproteins A-I and A-II (apoA-I and apoA-II). ApoA-I is required for assembly of HDL and, when overexpressed in transgenic mice, confers resistance to early atherosclerosis. The present studies reveal that transgenic mice that overexpress mouse apoA-II had elevated HDL-cholesterol concentrations but, nevertheless, exhibited increased atherosclerotic lesion development as compared to normal mice. The HDL in the transgenic mice was larger and had an increased ratio of apoA-II to apoA-I. Thus, both the composition and amount of HDL appear to be important determinants of atherosclerosis.
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