Related Experiment Videos
HLA and rheumatic fever in Turkish Children
H E Khosroshahi1, O Kahramanyol, L Doğanci
1Division of Pediatric Cardiology, Social Security Children's Hospital, Dişkapi, Ankara, Turkey.
Insights
This study found a significant association between HLA-DR4 and rheumatic fever (RF) in Turkish children, suggesting a genetic link. The findings support the idea of race-specific genetic susceptibility to rheumatic heart disease.
Area of Science:
- Immunogenetics
- Rheumatology
- Pediatrics
Background:
- Rheumatic fever (RF) is an inflammatory condition following Streptococcus pyogenes infection.
- Genetic factors, particularly human leukocyte antigen (HLA) genes, are implicated in RF susceptibility.
- Limited research exists on HLA and RF among Turkish children.
Purpose of the Study:
- To investigate the association between specific HLA alleles and RF in a cohort of Turkish children.
- To explore potential links between HLA types and clinical manifestations of RF, such as carditis and arthritis.
Main Methods:
- A case-control study involving 93 Turkish children diagnosed with RF (aged 6-16 years).
- HLA typing was performed on all participants.
- Statistical analysis was used to determine associations between HLA alleles and RF, and its subtypes.
Main Results:
- A positive and significant association was observed between HLA-DR4 and RF (p < 0.001).
- HLA-DR4 showed a significant association with carditis, but not with isolated arthritis.
- No significant association was found between HLA-A2 and RF.
Conclusions:
- The study identifies HLA-DR4 as a genetic marker associated with RF and carditis in Turkish children.
- These findings support the hypothesis of genetically determined, race-specific susceptibility to rheumatic heart disease.
- Further research is warranted to elucidate the precise mechanisms of HLA involvement in RF pathogenesis.
Abstract:
We report the results of research on human leukocyte allo-antigen (HLA) and rheumatic fever (RF), the first published study to be carried out among Turkish children with RF. Ninety-three Turkish children, aged between 6 and 16 years (mean: 8 +/- 2.6), with RF participated in the study. Of the total, 26 patients had their first attack and 39 had acute rheumatic activity at the time of registration. The results demonstrate (1) negative but not significant association between HLA-A2 and RF; (2) a positive association between HLA-DR4 and RF (p less than 0.001); (3) a significant association between HLA-DR4 and carditis, but not with isolated arthritis. These results corroborate the concept of race-specific genetically determined familial susceptibility to the development of rheumatic heart disease.