Linked Life Data

19601990

Source:http://linkedlifedata.com/resource/pubmed/id/19601990

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2009-8-28
pubmed:abstractText
Type 3 von Willebrand disease (VWD) is a severe autosomal recessive inherited bleeding disorder. In affected individuals the underlying von Willebrand factor gene (VWF) mutations frequently remain uncharacterized. The aim of this study was to investigate the molecular basis of type 3 VWD in patients (11 Caucasians and 9 of Asian origin) attending the haemophilia centres at Central Manchester NHS Trust. A combination of DNA sequencing of VWF genomic and complementary DNA was performed to identify mutations in the patient cohort. Fifteen different VWF mutations were identified at the genomic DNA level: two gene conversion events, three nonsense, three frameshift, one missense, two splice site, one insertion-deletion and three deletion mutations. Homozygosity or compound heterozygosity for mutations was present in 15 of the 20 patients. In the remaining five individuals, heterozygosity for a single VWF mutation was identified in four cases and one patient had no detectable VWF mutation. Analysis of platelet-derived VWF RNA from these five individuals revealed heterozygosity for a deletion of exons 4 and 5 in four cases. The remaining patient was heterozygous for a three base deletion which had already been identified at the DNA level. Overall the observed VWF genotype explained the phenotype in 18 of the 20 patients investigated. In genetic studies in type 3 VWD, if VWF mutations are not detected at the DNA level, RNA analysis should be performed to search for intronic mutations, heterozygous deletions or aberrant splicing/post-transcriptional events. However, this may still not explain all cases of previously phenotypically diagnosed type 3 VWD.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
1365-2516
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
15
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1048-57
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
The mutation spectrum associated with type 3 von Willebrand disease in a cohort of patients from the north west of England.
pubmed:affiliation
University Department of Haematology, Manchester Royal Infirmary, Manchester, UK.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't