Aortic Aneurysm and Dissection Clinical Trial
Official title:
MITAORTA - Role of Mitochondrial Dynamic in Aneurysm and Dissection of Ascending Thoracic Aorta
The main objective is to compare the mitochondrial dynamic between patients operated for aneurysm of ascending aorta or type A aortic dissection (AAD) or control group
In an aortic aneurysm process, the alteration of the extracellular matrix (ECM) as well as the apoptosis of the smooth muscle cells are due to inflammatory phenomena and oxydative stress, involving mitochondria which has a key place within cells. Mitochondrial fusion and fission constitute mitochondrial dynamic and are involved in the mechanisms described above. The alteration of mitochondrial dynamics has been demonstrated in many pathologies, in particular neurological, cancer and cardiovascular disease and generally occurs in favor of fission. In a mouse model (FASEB J, 2021, Robert P ), the role of mitochondrial fusion has been demostrated as a protective factor against hypertension in resistance arteries and a deletion of OPA1 (optic Atrophy 1) fusion protein may lead to aneurysm until aortic dissection. The results of this experimental study suggest a role of the alteration of mitochondrial dynamic in the development of aneurysm and aortic dissection. ;
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