Objective: To analyze the relationship between FET level and NGAL level with the disease activity of Systemic lupus erythematosus. Methods: 91 patients with SLE in our hospital from June 2012 to June 2015 were selected, and 40 cases of healthy persons in the same period were included. They were included in the patient group and normal group. According to the disease activity of SLE patients, they were divided into the stable phase group(n=47) and the active phase group(n=44). Detected FET,ds-DNA and NGAL. R...