[Clinical study on treatment of childhood Henoch-Schonlein purpura nephritis with colquhounia root tablet].

To study the effect of Colquhounia root tablet (CRT) in treating childhood Henoch-Schonlein purpura nephritis (HSPN) and compared with tripterygium wilfordii multiglycoside tablet (TWMGT). Methods Eighty-two children with HSPN were divided into the CRT group and the control group. To patients of nephritic type, treatment with CRT and TWMGT was applied separately, but to those of nephrotic type, the treatment was given together with prednisone. Therapeutic effect and changes of related indexes, including urinary protein, retinal-binding protein (RBP), N-acetyl-β-glucosaminidase (NAG), were observed after patients received treatment for 6 months. Results The complete remission (CR) rate and partial remission (PR) rate in patients of nephritic type in the treated group was 58. 8% and 41. 2% respectively, while those in the control group was 20.8% and 66.7% respectively, and the ineffective rate being 12.5% . Comparison of the therapeutic effect between the two groups showed significant difference (P0.05). Although the CR rate in patients of nephrotic type in the treated group was higher than that in the control group, the difference was insignificant (P0.05). The urinary levels of protein, RBP and NAG lowered in both groups, but level of urinary protein in the treated group of nephritic type after 6 months of treatment was significantly lower than that in the control group (P 0.05). Conclusion CRT shows obvious effect in improving childhood HSPN of nephritic type, nephrotic type and attenuating the tubulointerstitial lesions, compared with TWMGT, CRT is more effective in lowering proteinuria and better in total effective rate.