UMOD and systemic lupus erythematosus: In one study, Shen et al., assessed 36 SLE patients, 58 IgA nephropathy patients and 30 healthy controls; after pooling all the included individuals, these authors identified a correlation of plasma uromodulin with the eGFR (r = 0.255; P = 0.013), serum creatinine (r = ‐0.307; P = 0.003) and other parameters of renal function.