文章基本信息

标题：Genetic analysis of intestinal cholesterol absorption in inbred mice
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作者：Margrit Schwarz ; Daphne L. Davis ; Bertrand R. Vick 等
期刊名称：JLR Papers In Press
印刷版ISSN：0022-2275
电子版ISSN：1539-7262
出版年度：2001
卷号：42
期号：11
页码：1801-1811
语种：English
出版社：American Society for Biochemistry and Molecular Biology
摘要：A genetic mapping strategy was employed to identify chromosomal regions harboring genes that influence the absorption of intestinal cholesterol in the mouse. Analysis of seven inbred strains of male mice (129P3, AKR, BALB/c, C3H/He, C57BL/6, DBA/2, and SJL, all from Jackson Laboratories) revealed substantial differences in their abilities to absorb a bolus of cholesterol delivered by gavage. Crosses between high (AKR, 129) and low (DBA/2, SJL) absorbing strains revealed evidence for the presence of dominant genes that increase and decrease cholesterol absorption. Backcrosses between F₁ offspring and parental strains (DBA/2xAKD2F₁ and 129xSJL129F₁) followed by linkage analyses revealed four quantitative trait loci that influenced cholesterol absorption. Analyses of recombinant inbred strains identified an additional three loci affecting this phenotype. These seven quantitative trait loci, which map to different chromosomes and are termed Ch olesterol ab sorption 1–7 ( Chab1–7 ) loci, together influence the absorption of intestinal cholesterol in mice and are likely to be involved in different steps of this complex pathway. —Schwarz, M., D. L Davis, B. R. Vick, and D. W. Russell. Genetic analysis of intestinal cholesterol absorption in inbred mice. J. Lipid Res. 2001. 42: 1801–1811.
关键词：quantitative trait mapping ; lipid metabolism ; bile acids