抗原侵入机体后可改变机体的反应性,常表现为免疫反应,或变态反应。前者对机体有利,后者则引起组织损伤。目前习惯上将变态反应与超敏反应、免疫性损伤互相通用,其含义大体上相同。免疫反应引起组织损伤的原因 1、抗原的刺激。这是发生免疫性组织损伤的主要原因,一般称之为变应原。按其来源可将变应 Antigens invade the body can change the body’s reactivity, often manifested as immune response, or allergic reaction. The former is good for the body while the latter causes tissue damage. Currently used to allergic reactions and hypersensitivity, immune injury common to each other, its meaning is generally the same. Causes of immune damage caused by tissue damage 1, antigen stimulation. This is the main cause of immune tissue damage, commonly referred to as allergens. According to their sources can be allergic