In a retrospective study, by stratifying patients into groups according to serum albumin levels, the investigators revealed that the risk of hospital-acquired AKI was related to a low albumin level (≤ 24 g/L) (OR = 1.52; 95% CI: 1.18–1.94) and a high albumin level (≥ 45 g/L) (OR = 2.16; 95% CI: 1.74–2.96) (17). The gene discussed is ALB; the disease is acute kidney injury.