Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2002-2-27
pubmed:abstractText
Protein malnutrition affects the status of dermal collagen, the major structural protein in the skin. However, the molecular mechanism underlying the alteration of collagen fibers in the skin by protein deficiency remains unknown. In the present study, the effect of dietary protein deprivation on collagen metabolism was studied by analyzing the status of the synthesis and degradation of collagen in the dorsal skin of rats. Feeding on a protein-free diet for 8 days caused a dramatic decrease in both types I and III tropocollagen with a concomitant decrease in their mRNA levels, with type III collagen being more severely affected. The active form of collagenase was significantly decreased by protein deprivation, whereas the latent form was not affected. The mRNA levels of collagenase and its inhibitors (TIMP-1 and 2) were also decreased by protein deprivation. These results suggest that both the synthesis and degradation of types I and III collagen were affected by protein deficiency.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0916-8451
pubmed:author
pubmed:issnType
Print
pubmed:volume
66
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
117-26
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
2002
pubmed:articleTitle
Effects of protein deprivation on alpha1(I) and alpha1(III) collagen and its degrading system in rat skin.
pubmed:affiliation
Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Japan.
pubmed:publicationType
Journal Article