Aucouturier P, Mounir S, Preud'homme J L
Diagn Immunol. 1985;3(4):191-6.
IgG subclass levels were measured by an indirect competitive immunoenzymatic assay with selected monoclonal antibodies in sera from 180 adult blood donors. Mean levels were 6.35 mg/ml (65% of the sum of the subclasses) for IgG1, 2.61 mg/ml (26.2%) for IgG2, and 0.414 mg/ml (4.3%) for IgG3. IgG4 levels were significantly different in men (mean 0.456 mg/ml, 4.8% of the sum) and women (mean 0.29 mg/ml, 3.2%), with very wide ranges. The distribution of IgG2 levels was more homogeneous than that of IgG4 but more heterogeneous than those of IgG1 and IgG3, with a number of sera that displayed low levels of IgG2.
采用间接竞争免疫酶法，使用选定的单克隆抗体，对180名成年献血者血清中的IgG亚类水平进行了测定。IgG1的平均水平为6.35毫克/毫升（占亚类总和的65%），IgG2为2.61毫克/毫升（26.2%），IgG3为0.414毫克/毫升（4.3%）。IgG4水平在男性（平均0.456毫克/毫升，占总和的4.8%）和女性（平均0.29毫克/毫升，占3.2%）中存在显著差异，范围非常广泛。IgG2水平的分布比IgG4更均匀，但比IgG1和IgG3更不均匀，有一些血清显示IgG2水平较低。
