First Author | Mamontova A | Year | 1998 |
Journal | Circulation | Volume | 98 |
Issue | 24 | Pages | 2738-43 |
PubMed ID | 9851961 | Mgi Jnum | J:52105 |
Mgi Id | MGI:1328456 | Doi | 10.1161/01.cir.98.24.2738 |
Citation | Mamontova A, et al. (1998) Severe atherosclerosis and hypoalphalipoproteinemia in the staggerer mouse, a mutant of the nuclear receptor RORalpha. Circulation 98(24):2738-43 |
abstractText | BACKGROUND: Hypoalphalipoproteinemia is the most common lipoprotein abnormality in patients with coronary artery disease, yet its causes are unknown. METHODS AND RESULTS: We show that the homozygous staggerer (sg/sg) mutant mouse, which carries a deletion within the nuclear receptor RORalpha gene, develops severe atherosclerosis when maintained on an atherogenic diet. In addition, sg/sg mice display a profound hypoalphalipoproteinemia, which is associated with decreased plasma levels of the major HDL proteins, apolipoprotein (apo) A-I and apoA-II. This decrease in HDL levels in sg/sg mice is due to lowered apoA-I gene expression in the intestine but not in the liver. ApoA-II gene expression is unaffected. CONCLUSIONS: These results suggest that the RORalpha gene contributes to the plasma HDL level and susceptibility to atherosclerosis. |