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  • Title: Distinct hepatic receptors for low density lipoprotein and apolipoprotein E in humans.
    Author: Hoeg JM, Demosky SJ, Gregg RE, Schaefer EJ, Brewer HB.
    Journal: Science; 1985 Feb 15; 227(4688):759-61. PubMed ID: 2982214.
    Abstract:
    Since the liver is a central organ for lipid and lipoprotein synthesis and catabolism, hepatic receptors for specific apolipoproteins on plasma lipoproteins would be expected to modulate lipid and lipoprotein metabolism. The role of hepatic receptors for low density lipoproteins and apolipoprotein E-containing lipoproteins was evaluated in patients with complementary disorders in lipoprotein metabolism: abetalipoproteinemia and homozygous familial hypercholesterolemia. In addition, hepatic membranes from a patient with familial hypercholesterolemia were studied and compared before and after portacaval shunt surgery. The results establish that the human liver has receptors for apolipoproteins B and E. Furthermore, in the human, hepatic receptors for low density lipoproteins and apolipoprotein E are genetically distinct and can undergo independent control.
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