OCTN2, MRP2, MRP4, and MATE1 did not differ significantly between E‐ADPKD and healthy samples (P > 0.05), but in the ESADPKD‐ group, all 4 transporters were significantly lower compared to healthy controls (P < 0.001). Here, SLC47A1 is linked to autosomal dominant polycystic kidney disease.