CST3 and acute kidney injury: A recent expert consensus meeting by the Acute Disease Quality Initiative (ADQI) and the International Club of Ascites (ICA) concluded that the combined use of functional (e.g., sCr, Cystatin C) and damage (e.g., albuminuria, uNGAL) biomarkers enabled more accurate differential diagnosis of the aetiology and mechanisms of AKI in patients with cirrhosis and potentially enabled the identification of AKI sub-phenotypes suitable for specific therapeutic interventions [39, 40].