Abstract:
:High plasma concentrations of apolipoprotein (a) (apo(a)) have been implicated as a major independent risk factor for atherosclerosis in humans. Apo(a) is a large, evolutionarily new gene (present primarily in primates) for which considerable controversy exists concerning the factors that regulate its expression. To investigate the in vivo regulation of apo(a), we have created several lines of YAC transgenic mice containing a 110-kb human apo(a) gene surrounded by greater than 60 kb of 5' and 3' flanking DNA. Studies in humans have suggested that acute-phase inducers increase and sex steroids decrease apo(a) concentrations, but these results are controversial. Analysis of the YAC transgenic mice conclusively supports the hypothesized role of sex steroids and refutes the suggested role of acute-phase inducers in regulating the apo(a) gene.
journal_name
Nat Genetjournal_title
Nature geneticsauthors
Frazer KA,Narla G,Zhang JL,Rubin EMdoi
10.1038/ng0495-424subject
Has Abstractpub_date
1995-04-01 00:00:00pages
424-31issue
4eissn
1061-4036issn
1546-1718journal_volume
9pub_type
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