Abdominal aortic aneurysm(AAA) is a chronic dilated artery disease induced by atherosclerosis,infection,trauma and other related causes.The available studies about AAA mainly focus on the inflammatory response,senility,and microenvironmental changes,while the research on the metabolic changes such as glucose metabolism and lipid metabolism remains to be conducted.As a critical regulatory factor in endocrine,glucose,and lipid metabolisms,leptin is associated with a variety of signaling pathways such as adenosine monophosphate-activated protein kinase,Janus kinase/signal transducer and activator of transcription,and cytokine-cytokine receptor,as demonstrated by the KEGG pathway enrichment analysis.Moreover,these signaling pathways are generally involved in regulating the occurrence of AAA.In addition,leptin affects the occurrence of a variety of diseases such as obesity,diabetes,and hyperlipidemia,which contribute to the formation of AAA.Diabetes might be a protective factor for the formation of AAA,while the relationship of hyperlipidemia and obesity with the formation of AAA remains unclear.Therefore,leptin might play an essential role in the formation of AAA.Further studies about the effect of leptin on AAA may provide the potential research direction and facilitate the discovery of therapeutic targets.
Keywords: abdominal aortic aneurysm; leptin; pathogenesis; signaling pathways.