HLA-DQB1 and DRB1 alleles in Egyptian children with steroid-sensitive nephrotic syndrome.
Steroid-sensitive nephrotic syndrome (SSNS) of children has been associated with several HLA-DR and DQ alleles. To investigate this association in Egyptian children, 27 patients with SSNS were typed for HLA-DRB1 and DQB1 alleles using DNA polymerase chain-reverse hybridization technique. The results were compared with 121 healthy subjects for HLA-DRB1 and 59 subjects for DQB1 alleles. We found that: (1) patients have higher frequencies of both DQB1 *0601 (81.5% vs. 10.2% in controls, Pc=0.0001) and DRB1 *01 (44.4% vs. 3.3% in controls, Pc=0.00003). Their relative risks are significantly high [38.9, confidence interval (CI)=10.7-140.7, and 23.4, CI=6.7-81.9, respectively]; (2) the frequency of DRB1 *11 alleles was low in SSNS patients (3.75% vs. 32.2% in controls), but was not significant when P was corrected (P=0.005, Pc=NS). These findings suggest that DQB1 *0601 and DRBI *01 or closely associated unknown genes confer susceptibility to SSNS. However, further studies with larger numbers of patients are needed.[1]References
- HLA-DQB1 and DRB1 alleles in Egyptian children with steroid-sensitive nephrotic syndrome. Bakr, A.M., El-Chenawy, F. Pediatr. Nephrol. (1998) [Pubmed]
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