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http://purl.uniprot.org/citations/24356554http://www.w3.org/1999/02/22-rdf-syntax-ns#typehttp://purl.uniprot.org/core/Journal_Citation
http://purl.uniprot.org/citations/24356554http://www.w3.org/2000/01/rdf-schema#comment"

Background/aims

The aim of the study is to search for associations between Antineutrophil cytoplasm antibody (ANCA)-associated vasculitis (AAV) and polymorphisms in the genes of four key molecules possibly involved in different pathogenic pathways; complement C3, CTLA-4, Fcγ-RIIa and IL1-Ra.

Patients and methods

Patients with AAV (n=105) subgrouped as microscopic polyangiitis or granulomatosis with polyangiitis (Wegener's granulomatosis) and myeloperoxidase (MPO) or proteinase 3 (PR3) ANCA positive were compared to a control group of 200 blood donors. Polymorphisms in the genes were analysed with PCR amplification of DNA.

Results

The diagnosis of AAV was confirmed in the 105 cases. The gene frequency of C3F was 0.27 in the PR3-ANCA subgroup (p=0.041) compared to 0,19 in the control group. The number of patients homozygous for the shortest 86 bp allele of CTLA-4 was significantly decreased in the whole group of patients (p=0.049). No differences were evident in the Fcγ-RIIa and IL1-Ra polymorphisms when compared to controls, neither in the whole group of patients, nor in any of the sub-groups.

Conclusion

The aberrant gene frequency of the C3F allele among PR3-ANCA positive patients and the findings with the CTLA-4 polymorphism indicates that complement may be involved in pathogenesis and that T-cell activation also is of importance in these diseases."xsd:string
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http://purl.uniprot.org/citations/24356554http://purl.uniprot.org/core/author"Pettersson A."xsd:string
http://purl.uniprot.org/citations/24356554http://purl.uniprot.org/core/author"Sturfelt G."xsd:string
http://purl.uniprot.org/citations/24356554http://purl.uniprot.org/core/author"Truedsson L."xsd:string
http://purl.uniprot.org/citations/24356554http://purl.uniprot.org/core/author"Persson U."xsd:string
http://purl.uniprot.org/citations/24356554http://purl.uniprot.org/core/author"Gullstrand B."xsd:string
http://purl.uniprot.org/citations/24356554http://purl.uniprot.org/core/author"Segelmark M."xsd:string
http://purl.uniprot.org/citations/24356554http://purl.uniprot.org/core/date"2013"xsd:gYear
http://purl.uniprot.org/citations/24356554http://purl.uniprot.org/core/name"Kidney Blood Press Res"xsd:string
http://purl.uniprot.org/citations/24356554http://purl.uniprot.org/core/pages"641-648"xsd:string
http://purl.uniprot.org/citations/24356554http://purl.uniprot.org/core/title"A candidate gene approach to ANCA-associated vasculitis reveals links to the C3 and CTLA-4 genes but not to the IL1-Ra and Fcgamma-RIIa genes."xsd:string
http://purl.uniprot.org/citations/24356554http://purl.uniprot.org/core/volume"37"xsd:string
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