那些在记忆测试中表现良好的人，其体内的免疫球蛋白 A 水平会升高。免疫球蛋白 A 是一种抗体，是人体抵御细菌的第一道防线。

Those who did well on the memory test had an increase in levels of immunoglobulin A, an antibody that's the body's first line of defense against germs.

youdao

四聚物的结合是通过表面免疫球蛋白抗原受体，通过Fc受体结合抗体的很少量甚至没有。

Binding of the tetramers occurred by the surface immunoglobulin antigen receptor with little or no binding to antibody captured in the Fc receptor.

youdao

Another important class of antibodies is called IgM.

另一种重要的抗体是免疫球蛋白M

耶鲁公开课 - 生物医学工程探索课程节选