in IL-2(r=-0.250 , P=0. 003); Cy sCwasnegatively correlatedwithC3(r=-0.373 , P=0. 001); IL-2waspositively correlatedwithC3(r=0. 232 , P=0. 006) . Conclusion SerumCy sClevels are increased , while IL-2 and C3 levels are decreased patients with chronic glomerular