One potential circulating antigen that's been identified is cationic bovine serum albumin, which is present in cow's milk and beef protein, and can escape the intestinal barrier, cause immune complex formation, and deposit in the GBM.

一种已发现的潜在循环抗原是阳离子化牛血清白蛋白，存在牛奶和牛肉蛋白质中，并可逃离肠道屏障，导致免疫复合物形成，沉积在基底膜。