Diabetic kidney disease823 patients with Type 2 diabetes and CKD treated with an ACE-inhibitor or an ARB with at least the minimum recommended doseUACR >30 mg/g and an eGFR >30 mL/min/1.73 m2serum K+ <4.8 mmol/L. The gene discussed is ACE; the disease is type 2 diabetes mellitus.