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  • Title: Mechanism by which dipeptidyl peptidase-4 inhibitors increase the risk of heart failure and possible differences in heart failure risk.
    Author: Sano M.
    Journal: J Cardiol; 2019 Jan; 73(1):28-32. PubMed ID: 30318179.
    Abstract:
    Dipeptidyl peptidase-4 (DPP-4) inhibitors are oral antidiabetic drugs that safely reduce the blood glucose level over the long term. In Japan, DPP-4 inhibitors have become the oral antidiabetic drugs most frequently prescribed for patients with type 2 diabetes. However, the results of several cardiovascular outcomes studies have suggested that some DPP-4 inhibitors may increase the risk of hospitalization for heart failure. In patients with diabetes, heart failure is the most frequent cardiovascular condition, and it has a negative impact on the quality of life as well as being a potentially fatal complication. Therefore, it is important to determine whether an increased risk of heart failure is associated with certain DPP-4 inhibitors or is a class effect of these drugs. This review explores the mechanism by which DPP-4 inhibitors may increase the risk of heart failure and possible differences among these drugs. The available research suggests that DPP-4 inhibitors cause sympathetic activation as a class effect and this may increase the risk of heart failure. Unlike other DPP-4 inhibitors, sitagliptin and alogliptin are mainly excreted in the urine and suppress renal sodium-hydrogen exchanger 3 activity. These two drugs did not increase the risk of hospitalization for heart failure in large-scale cardiovascular outcomes studies.
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