Objective: To investigate the role of leflunomide in the treatment for PHN, and to provide evidence for membranous nephropathy in clinic. Methods: The rat PHN model was induced by injection of anti-FX1A serum through tail vein. Twenty-four hours urine protein, nephrin mRNA expression and glomerular lesions were detected by BCA, RT-PCR and light and electronic micro-scope, respectively. Results: The rat PHN model was establish-ed successfully. Leflunomide reduced urine protein, glomerular lesions of rat with...