GCG and aneurysm: In addition to the well-known anti-inflammatory and vascular effects of GLP-1, a recent study indicates a role for GLP-1 in prevention of abdominal aortic aneurysm in an animal model [19], but it remains to be determined if the increased plasma levels of GLP-1 in the present subgroup of diabetic patients contributes to the reduced prevalence of aneurysm in these patients.