Objective:To study role of abnormal glycosylation of IgA1in renal injury in children with henoch-schonlein purpura.Methods:Forty-two children that were confirmed as henoch-schonlein purpura were enrolled(HSP group),and 58cases of henoch-schonlein purpura nephritis(HSPN)as well as 50cases of healthy children were also selected.IgA and IgA1in serum,binding capacity of vilsa villosa to IgA1were detected with ELISA.Results:IgA and IgA1in serum of both HSP and HSPN groups markedly elevated comparing with control...