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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Protection against atherogenesis in mice mediated by human apolipoprotein A-IV.

Apolipoproteins are protein constituents of plasma lipid transport particles. Human apolipoprotein A-IV (apoA-IV) was expressed in the liver of C57BL/6 mice and mice deficient in apoE, both of which are prone to atherosclerosis, to investigate whether apoA-IV protects against this disease. In transgenic C57BL/6 mice on an atherogenic diet, the serum concentration of high density lipoprotein (HDL) cholesterol increased by 35 percent, whereas the concentration of endogenous apoA-I decreased by 29 percent, relative to those in transgenic mice on a normal diet. Expression of human apoA-IV in apoE-deficient mice on a normal diet resulted in an even more severe atherogenic lipoprotein profile, without affecting the concentration of HDL cholesterol, than that in nontransgenic apoE-deficient mice. However, transgenic mice of both backgrounds showed a substantial reduction in the size of atherosclerotic lesions. Thus, apoA-IV appears to protect against atherosclerosis by a mechanism that does not involve an increase in HDL cholesterol concentration.[1]


  1. Protection against atherogenesis in mice mediated by human apolipoprotein A-IV. Duverger, N., Tremp, G., Caillaud, J.M., Emmanuel, F., Castro, G., Fruchart, J.C., Steinmetz, A., Denèfle, P. Science (1996) [Pubmed]
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