Cardiovascular risk reduction is the major aim of
type 2 diabetes mellitus treatment. The effects of various
antidiabetics on the cardiovascular complications are currently under careful scrutiny.
Incretin-based
therapy that utilizes the effects of
glucagon-like peptide 1 (GLP-1) or stimulation of its receptor by
GLP-1 receptor agonists represents one of the most promising approaches from the potential cardiovascular risk reduction point of view. Experimental studies have shown that the
GLP-1 and
GLP-1 agonists treatment improves endothelial function, decrease blood pressure and protects myocardium during experimentally-induced
ischemia. Clinical studies with
GLP-1 receptor agonists consistently show that, in addition to good
antidiabetic efficacy, its long-term administration decreases blood pressure,
body weight and improves circulating
lipid levels while slightly increasing heart rate. In this paper, we focus on the cardiovascular effects of
GLP-1 receptor agonist
liraglutide. Preliminary analyses of cardiovascular complications in phase III trials with
liraglutide indicate its good cardiovascular safety. A possibility of cardioprotective effects of
liraglutide remains still open and is currently studied within a prospective cardiovascular trial LEADER.