Gene expression levels of thioredoxin-interacting protein (TXIP), superoxide dismutase 2 (SOD2) and glutaminase (GLS) showed fair to poor accuracies towards distinguishing WD- from DDLPS (ROC AUCs of 0.813, 0.734 and 0.5, respectively), and were thus disregarded from further validation. Here, SOD2 is linked to Wilson disease.