DRD2 and chronic kidney disease: The analysis of 16 microarray studies deposited in GEO Datasets of CKD patients, controls, and transplanted kidneys with or without injury showed that in 13 out of the 16 studies, DRD2 expression is lower in patients with CKD or transplanted kidneys with injury and deficient renal function than in patients with no CKD or transplanted kidneys with no evidence of injury (unpublished).