CD79A and glomerulonephritis: So far, pathological diagnosis based on invasive renal biopsy is the criterion and the golden standard for diagnosing the sub-types of primary or secondary glomerulonephritis, which is defined by the types of dominantly accumulated and infiltrated immunoglobulin in kidney tissue, such as IgAN is known as IgA or IgA-dominant immune complex deposition in glomerular mesangial through immunofluorescence.