To explore the diagnostic value and prognostic significance of microRNA (miRNA) miR-210, serum creatinine (Scr), neutrophil gelatinase-associated lipocalin (NGAL), blood urea nitrogen (BUN), cystatin C (CysC), and sequential organ failure assessment (SOFA) scores in patients with sepsis-associated acute kidney injury. This evidence concerns the gene LCN2 and acute kidney injury.