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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2009-1-21
pubmed:abstractText
We examined the role of hepatic interleukin (IL)-1alpha/beta in serum total cholesterol homeostasis using male and female IL-1-knockout (KO) mice and wild-type (WT) mice. Serum total cholesterol level was higher in males than in females in WT and KO mice. The difference between sexes was closely correlated with the difference in gene expression level of cholesterol 7alpha-hydroxylase (Cyp7a1), a rate-limiting enzyme for bile acid synthesis. No significant sex difference in gene expression level of 3-hydroxy-3-methylglutaryl-CoA reductase, a rate-limiting enzyme for cholesterol synthesis, was observed in WT mice. Interestingly, the gene expression level of hepatic Cyp7a1 was lower in KO mice than in sex-matched WT mice, while the serum total cholesterol level was the opposite. The present findings demonstrate that IL-1alpha and IL-1beta are positive regulators for the Cyp7a1 gene in steady-state mice and that Cyp7a1 is one of the factors that mediate the difference in serum total cholesterol level between sexes.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
1090-2104
pubmed:author
pubmed:issnType
Electronic
pubmed:day
6
pubmed:volume
379
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
239-42
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
IL-1 regulates the Cyp7a1 gene and serum total cholesterol level at steady state in mice.
pubmed:affiliation
Animal Genome Research Unit, Division of Animal Sciences, National Institute of Agrobiological Sciences, Kannondai 2-1-2, Tsukuba 305-8602, Japan. misaki@affrc.go.jp
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't