We discussed the relationship of TLR2 (Toll-like receptor) and TLR4 expressions in peripheral blood mononuclear cells (PBMCs) to Th1- and Th2-type immune responses in children with Henoch-Sch?nlein Purpura (HSP). and TLR2 and TLR4 protein expressions in children with HSP had been significantly greater than those of the handles (P