The complement system and autoimmune diseases

The complement system plays a key role in the pathogenesis of autoimmune diseases,which usually injures the kidney.More and more studies have shown the pathogenic role and indicated that abnormal activation of the complement system was highly involved in the outbreak of autoimmune diseases.This review mainly introduced recent studies of complement system activation contributing to the pathogenesis of autoimmune diseases,including systemic lupus erythematosus,antiphospholipid syndrome,antineutrophil cytoplasmic antibody-associated vasculitides,and so on.Understanding the pathogenic roles of complement activation in various autoimmune diseases will identify potential novel therapeutic targets on complement systems.

重症显微镜下多血管炎1例报告并文献复习

目的:显微镜下多血管炎(microscopic polyangiitis,MPA)通常易侵犯肾脏,很少累及神经系统,而同时累及肺及中枢神经系统的重症病例较少见。本文旨在探讨重症显微镜下多血管炎(MPA)的临床表现、诊断与治疗,为临床提供借鉴。方法:回顾性分析重症显微镜下多血管炎(MPA)的文献资料,结合本中心病例,54岁女性,尿检异常6年,咳血3年因肾功能衰竭合并心衰入院。结合实验室检查及影像学改变,诊断为重症AASV,考虑MPA可能性大。结果:入院后即给予激素联合环磷酰胺冲击治疗,病情明显好转;3周后出现病情反复,再次激素冲击治疗,效果不如前。继而出现脑出血,病情进一步恶化,最终因肾、肺、脑等多器官功能衰竭于入院5周后死亡。结论:对MPA患者关键在于早发现早治疗;而对缓解重症MPA患者病情,激素联合环磷酰胺冲击治疗在初始阶段有效。