The present study was designed to identify the efficacy and safety of Integrative Medicine by joint oral steroid medicine on liver-kidney yin deficiency, severe IgA nephropathy. Furthermore, search for potential diagnostic predictor in IgA Nephropathy by Proteomics and Metabolomics. Combined with TCM Syndrome research, the investigators will clarify targets or mechanisms of herbal treatment. Eventually, to form a more clinically appropriate standardized combination treatment of severe IgA nephropathy.