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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1995-10-17
pubmed:abstractText
To examine the mechanism of decrease in serum ceruloplasmin (Cp) in Long-Evans Cinnamon (LEC) rats, a proposed model of Wilson's disease, we analyzed Cp products at the stages of transcription and translation. Northern blot analysis and immunoblot analysis showed that the level and the molecular size of Cp mRNA and protein in LEC rats were similar to those in control Long-Evans-Agouti (LEA) rats. However, the ferroxidase activity of Cp was significantly decreased in LEC rats. We separated serum Cp into two forms by native polyacrylamide gel electrophoresis with pH modification: one was a holo-Cp with copper and ferroxidase activity, and the other was an inactive apo-Cp without copper. Holo-Cp was the predominant form in LEA rats and normal humans, whereas apo-Cp was the major form in LEC rats and patients with Wilson's disease. The cosegregation of apo-Cp predominance with the disease in LEC rats was analyzed using backcross rats. Apo-Cp was dominant in 8 of 11 offspring with disease but in none of 19 normal offspring. These results indicate that a genetic disturbance of copper binding to apo-Cp may be closely associated with the pathogenesis in LEC rats, and probably in Wilson's disease.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0106-9543
pubmed:author
pubmed:issnType
Print
pubmed:volume
15
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
135-42
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1995
pubmed:articleTitle
Defective copper binding to apo-ceruloplasmin in a rat model and patients with Wilson's disease.
pubmed:affiliation
Medical Research Institute, Nihon University School of Medicine, Tokyo, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't