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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2008-5-20
pubmed:abstractText
Bach 1 is a transcription factor that negatively regulates the transcription of heme oxygenase-1 (HO-1), a stress-responding protein. In this study, we investigated the reaction to oxidative stress in the meniscus of Bach 1 deficient mice, and the suppression of meniscal degeneration by the induction of HO-1. We carried out a comparative study between Bach 1 deficient mice and wild type mice, in which the oxidative stress reaction and age-related changes were investigated using the menisci of 6-, 12-, and 24-week-old mice. The degrees of meniscal degeneration and expression of HO-1 were evaluated using the menisci cultured under oxidative stress with cadmium chloride or interleukin-1 beta. The age-related changes in the meniscus were histologically examined. The expression of HO-1 was higher, and the degrees of histological degeneration were lower in the Bach 1 deficient mice than in wild type mice (HO-1 mRNA expression: In both the Cd group and the IL group, two-fourfold higher in the meniscus). The age-related changes were lower in the Bach 1 deficient mice than in wild type mice. In 24-week-old mice, a moderate decrease in the cell density and proteoglycan content was observed in wild type mice compared with Bach 1 deficient mice. In the menisci of Bach 1 deficient mice, the anti-oxidative stress activity was considered to be increased by abrogating the suppression of HO-1 expression, resulting in a reduction of histological degeneration. This finding showed a potential new strategy for the prevention and treatment of meniscal degeneration.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
1554-527X
pubmed:author
pubmed:copyrightInfo
(c) 2008 Orthopaedic Research Society.
pubmed:issnType
Electronic
pubmed:volume
26
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
894-8
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
Oxidative stress reaction in the meniscus of Bach 1 deficient mice: potential prevention of meniscal degeneration.
pubmed:affiliation
Department of Orthopaedic Surgery, Graduate School of Biomedical Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima City, Hiroshima, 734-8551 Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't