Genetic susceptibility to juvenile idiopathic arthritis in Iranian children.

Abstract

BACKGROUND AND AIMS:

This study was comprised of Iranian children with oligoarthritis and rheumatoid factor negative (RF) polyarthritis subtypes of juvenile idiopathic arthritis (JIA) to determine the association of HLA-DRB1 alleles in Iran.

METHODS:

HLA-DRB1 alleles were investigated in 33 Iranian children with oligoarthritis and RF negative polyarthritis JIA and compared with 45 healthy controls. HLA typing was performed by PCR with sequence specific primers in either of the two groups and followed by direct detection of HLA polymorphism by sequence analysis in patient group.

RESULTS:

HLA-DRB1*11 was found to be the most frequent allele associated with oligoarthritis and RF negative polyarthritis JIA in Iran followed by HLA-DRB1*8. The frequencies of HLA-DRB1*04 and *13 were not significantly different in both groups.

CONCLUSIONS:

We concluded that there was a significant difference in allele frequencies between patients and control group that may help in predicting the susceptibility to oligoarthritis and rheumatic factor negative polyarthritis JIA.

• Authors: Shirin Farivar, Reza Shiari, Elham Hadi
• Journal: Archives of medical research (Arch Med Res) Vol. 42 Issue 4 Pg. 301-4 (May 2011) ISSN: 1873-5487 [Electronic] United States
• PMID: 21820608 (Publication Type: Journal Article)
• Copyright: Copyright © 2011 IMSS. All rights reserved.

Chemical References

• HLA-DRB1 Chains

Topics

• Arthritis, Juvenile (genetics, immunology)
• Child, Preschool
• Female
• Gene Frequency
• Genetic Predisposition to Disease
• HLA-DRB1 Chains (genetics)
• Humans
• Iran
• Male