CLINICAL SIGNIFICANCE OF SERUM INTERLEUKIN-1 RECEPTOR ANTAGONIST ANTIBODY IN CHILDREN WITH ACUTE IDIOPATHIC THROMBOCYTOPENIC PURPURA

Zhang BR, Li X, Wang Q, Zhu J, Jia WY.

Tianjin Children¡¯s Hospital, Tianjin, China

 

Objective:  To explore the level of serum interleukin-1 receptor antagonist (IL-1Ra) antibody and its relationship with clinical situation and prognosis in children with acute idiopathic thrombocytopenic purpura (AITP).

Methods: Serum level of IL-1Ra antibody was measured by ELISA.

Results: Serum level of IL-1Ra antibody in 32 AITP patients was significantly higher than that in controls (p<0.05), but no significant difference was demonstrated between the two groups of patients with hemorrhage of different severity (p>0.05). There was no significant correlation between the level of IL-1Ra antibody and megakaryocyte count in marrow (p>0.05). The level of IL-1Ra antibody was positively correlated with PAIgG (p<0.005,r=0.78). The level of IL-1Ra antibody was decreased in 10 patients after the platelet count became normal.

Conclusion: Whether the level of IL-1Ra antibody can be considered as prognostic index for patients with ITP should be further studied.

 
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