Linked Life Data

1603041

Source:http://linkedlifedata.com/resource/pubmed/id/1603041

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1992-7-15
pubmed:abstractText
We examined the synthesis of collagenous proteins by cultured skin fibroblasts taken from 14 patients with an abdominal aortic aneurysm and either an aneurysm at a second site (8 patients) or a first order relative with an abdominal aortic aneurysm (6 patients). Fibroblasts were labeled with [3H] proline and, following pepsin digestion of media proteins, the ratio of type I/III collagen was examined by denaturing polyacrylamide gel electrophoresis (SDS-PAGE). With the exception of two patients, the ratio of type I/III collagen in the media of fibroblasts from aneurysm patients was similar to control values (6 controls). In two of the patients, the type I/III collagen ratio was greater than 3 standard deviations from the mean of both control ratios and those of other aneurysm patients. mRNA levels coding for type III procollagen, however, were normal in both patients. Patient #1 (ME) showed reduced type III procollagen on SDS-PAGE analysis of intracellular proteins. Intracellular and media type III procollagen levels were normal in patient #2 (HR), but media type III collagen was reduced by over 50% after digestion with a combination of trypsin and alpha-chymotrypsin for 5 minutes at 36 degrees C. Control type III collagen was only reduced after digestion at 39 degrees C. These data suggest an altered thermal stability of the type III collagen trimer synthesized by this patient, probably due to a mutation in the amino acid sequence. The data presented in this paper suggest that some forms of common abdominal aortic aneurysms may be caused by mutations in the gene coding for type III procollagen.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0934-8832
pubmed:author
pubmed:issnType
Print
pubmed:volume
12
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
92-100
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Abnormalities in the biosynthesis of type III procollagen in cultured skin fibroblasts from two patients with multiple aneurysms.
pubmed:affiliation
Department of Surgery, UMDNJ-Robert Wood Johnson Medical School, New Brunswick, NJ 08903.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't