Lipoprotein receptors and atherogenic receptor-mediated mechanisms

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Abstract
The liver plays a decisive role in the regulation of the plasma levels of atherogenic lipoproteins. The primary liver interaction site of chylomicron remnants and VLDL remnants (beta-VLDL) is still unidentified, whereas the subsequent cellular uptake is likely to be mediated in concert by the LDL receptor-related protein and the LDL receptor. The nature of the primary interaction site of remnants (remnant receptor) might be a liver-specific proteoglycan or a liver-specific protein. Atherogenic modified LDL can be recognized by a family of scavenger receptors. A newly identified 95 kDa protein forms the most likely candidate for mediating the in-vivo uptake of oxidized LDL from the circulation and may, therefore, protect the body against the presence of oxidized LDL in the blood compartment.

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