compound introduction
在正常成人血清中，IgA相对于亚类的近似百分比组成为IgA1:90%和IgA2:10%。在分泌型IgA中，亚类比例可能接近50:50。亚类的临床意义尚未确定。 由经美国食品药品监督管理局要求的测试显示对HBsAg、抗-HCV、抗-HBc无反应且对抗-HIV 1和2呈阴性的血浆制备。 In normal adult serum, the approximate percentage composition of IgA with respect to is subclasses is IgA1:90% and IgA2:10%. In secretory IgA, the subclass proportions may approach 50:50. The clinical significance of the subclasses has yet to be determined. Prepared from plasma shown to be non reactive for HBsAg, anti-HCV, anti-HBc, and negative for anti-HIV 1 & 2 by FDA-required tests.
