They reported various similarities between primary IgA nephropathy and secondary IgA nephropathy in patients with alcoholic cirrhosis, since features of primary nephropathy such as abnormal glycosylation of IgA1 and soluble CD89-IgA or IgA-IgG complexes were also present in cirrhosis patients. The gene discussed is IGHA1; the disease is IgA glomerulonephritis.