First Author | Williamson R | Year | 1992 |
Journal | Proc Natl Acad Sci U S A | Volume | 89 |
Issue | 15 | Pages | 7134-8 |
PubMed ID | 1496008 | Mgi Jnum | J:2109 |
Mgi Id | MGI:50633 | Doi | 10.1073/pnas.89.15.7134 |
Citation | Williamson R, et al. (1992) Marked reduction of high density lipoprotein cholesterol in mice genetically modified to lack apolipoprotein A-I. Proc Natl Acad Sci U S A 89(15):7134-8 |
abstractText | Atherosclerosis is a major cause of morbidity and mortality in developed countries. In humans the risk of atherosclerosis is inversely correlated with plasma levels of high density lipoprotein (HDL). As a step in determining whether the experimental reduction of plasma HDL level will increase susceptibility to atherosclerosis, we have used gene targeting in embryonic stem cells to produce mice lacking apolipoprotein A-I, the major protein component of HDL particles. Mice homozygous for the disrupted gene have no plasma apolipoprotein A-I detectable by double immunodiffusion; their total plasma cholesterol and HDL-cholesterol levels after overnight fasting are reduced to about one-third and one-fifth of normal levels, and they are grossly deficient in alpha-migrating HDL particles. |