Does nifedipine treatment reduce the development and progression of diabetic vascular complications? If the answer is yes, is this beneficial effect of nifedipine superior than that of other DHPs with equihypotensive properties? Does nifedipine treatment decrease the incidence of melanoma and/or prolong the survival of patients with this devastating disorder? These prospective studies will provide further valuable information whether blockade by nifedipine of the AGE-RAGE signaling could be clinically relevant.. 