Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
21
pubmed:dateCreated
1977-6-22
pubmed:abstractText
To ascertain if the features of osteogenesis imperfecta could be due to an abnormality in two genetically distinct collagens, Type III and Type I, we measured, in pepsin digests of skin, the ratio of the alpha 1, (III) to alpha 1 (I) chains derived from the two types, using a method of interrupted polyacrylamide-gel electrophoresis. In 40 control subjects this ratio decreased from about 0.45 in early fetal life to a mean (+/-2 S.D.) of 0.14 +/- 0.06 in 14 adults. Seven of nine adult patients with mild osteogenesis imperfecta had ratios of more than 4 S.D., above this mean, as did two of five patients with severe osteogenesis imperfecta. The increased ratio was probably due to a reduction of Type I collagen. If this reduction were generalized it could contribute to the bony fragility of osteogenesis imperfecta, since mineralized bone contains Type I collagen only.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0028-4793
pubmed:author
pubmed:issnType
Print
pubmed:day
26
pubmed:volume
296
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1200-3
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1977
pubmed:articleTitle
Altered relation of two collagen types in osteogenesis imperfecta.
pubmed:publicationType
Journal Article