ABSTRACT
Henoch-Sch?nlein purpura(HSP) is a common small vessel inflammation in childhood, and most of them have good prognosis.Due to too many inflammatory factors, the body injury will persist in some severe cases of HSP that hormone alone is difficult to improve symptoms in a short time.Recent studies have found that gamma globulin or blood purification combined with hormone can relieve clinical symptoms more quickly.Plasma exchange and hemoperfusion are commomly used.The purpose of this paper is to review the status of gamma globulin and blood purification treatment in severe HSP.
ABSTRACT
Objective To investigate the effect of low pH on acid-sensing ion channel 1a( ASIC1a) expression in vascular endothelial cells induced by serum IgA 1 from Henoch-Sch?nlein purpura ( HSP ) children and regulatory role of ASIC1a in it.Methods Human dermal microvascular endothelial cells ( HDMECs) treated by serum IgA1 from children with HSP were incubated in different pH medium .ASIC1a, destrin and α-SM mRNA expressions in HDMECs were evaluated by real-time quantitative polymerase chain reaction (q-PCR).The level of inflammatory cytokines released by vascular endothelial cells was detected by ELISA .Moreover destrin and α-SM protein expres-sion in HDMECs was evaluated by Western blot .Results The results showed that in low pH condition , IgA1 from HSP children could induce the upregulation of ASIC 1a mRNA expression , stimulate IL-8, NO and TM release of vascular endothelial cells of HSP children .And blockers of ASICs could reduce acid-induced cytokine release of vascular endothelial cells .Moreover destrin and α-SM mRNA and protein expression in HDMECs of HSP children significantly decreased when exposure to extracellular acidosis .However blockers of ASICs increased destrin and α-SM mRNA and protein expression in vascular endothelial cells of HSP children .Conclusions These findings showed that activation of ASIC 1a could be involved in the vascular endothelial cell injury of HSP children .Blocking ASIC1a may have a significant protective effect on the inflammatory injury of vascular endothelial cells .
ABSTRACT
Henoch-Sch nlein purpura(HSP) frequently follows upper respiratory infection, and one of the causes of this disease is inferred to beta-hemolytic streptococcal infection, but the relationship is still unclear. Familial tendency of this disease is unclear, too. Also genetic relationship of this disease has been in a controversy yet. We experienced two cases of HSP in brother and sister at similar period, and report this case with review of related literatures.
Subject(s)
Humans , IgA Vasculitis , Siblings , Streptococcal InfectionsABSTRACT
Interleukin-5 (IL-5), which is known to be an activator of human eosinophil, increases in IgA nephropathy. In order to find out the relationship between activated eosinophil function and the pathogenesis of Henoch-Sch nlein purpura (HSP) and IgA nephropathy, serum esosinophil cationic protein (ECP) was analyzed using a monoclonal antibody Besides, the soluble IL-2 receptor (sIL-2R) was analyzed to clarify if there was a positive correlation between T cells and activated eosinophils. As anticipated, the levels of ECP, in detail, were significantly higher among HSP patients with a mean of 9.7+/-1.8microgram/L than in a control group with a mean of 4.6+/-0.7microgram/L. The HSP patients were also classified as one group with normal urine and another group with abnormal urine. The latter showed higher levels of ECP than the former. On the other hand, the levels of ECP were higher in IgA nephropathy patients than in the control group; however, there was no significance in statistics. The sIL-2R levels were higher in HSP patients than those in serums of IgA nephropathy patients and the control group. Thus, this study came to a conclusion that the activated eosinophil might be one of the pathogeneses in HSP but not in IgA nephropathy.