GCDH and acute kidney injury: 24 proteins were specific to a single category, including examples such as ADH1B, ANXA11 (AKI); PSG5 (Cystic); RCL (Nephrotic Syndrome); ATRAID (Other nephropathies); GCKR, LTB (Type 1 DKD); and GCDH, GSS, MANBA, NCAN (Type 2 DKD).