Graefe-Mody Graefe-Mody U U Friedrich Friedrich C C Port Port A A Ring Ring A A Retlich Retlich S S Heise Heise T T Effect of renal impairment on the pharmacokinetics of the dipeptidyl peptidase-4 inhibitor linagliptin Effect of renal impairment on the pharmacokinetics of the dipeptidyl peptidase-4 inhibitor linagliptin Diabetes Obes Metab Diabetes Obes Metab 2011 2011 10.1111/j.1463-1326.2011.01458.x 10.1111/j.1463-1326.2011.01458.x supplied-pmid 21672124? The gene discussed is DPP4; the disease is diabetes mellitus.