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The Relationship Between Aortic Tissue Sirtuin 1 Levels and Type A Aortic Dissections and Ascending Aortic Aneurysms
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The Relationship Between Aortic Tissue Sirtuin 1 Levels and Type A Aortic Dissections and Ascending Aortic Aneurysms
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Journal Article
The Relationship Between Aortic Tissue Sirtuin 1 Levels and Type A Aortic Dissections and Ascending Aortic Aneurysms
2026
Overview
Type A aortic dissections are pathologies with high mortality rates. Although ascending aortic aneurysms are typically planned for elective surgery, they are significant conditions in cardiovascular surgery due to their potential to cause type A aortic dissection. This study, which is the first to examine sirtuin 1 (SIRT1) in human ascending aortic tissues, aims to elucidate the relationship between ascending aortic pathologies and the SIRT1 protein.
A case-control study was conducted using aortic tissues and demographic data from patients who underwent surgery for ascending aortic aneurysm and type A aortic dissection. Coronary artery bypass patients were selected as the control group. The groups were compared in terms of SIRT1 levels.
The study included a total of 46 patients (16 in the aneurysm group, 14 in the dissection group, and 16 in the control group). The SIRT1 protein level was the highest in the ascending aortic aneurysm group (214, interquartile range [IQR] 79 - 270), followed by the dissection group (172, IQR 148 - 224), and the lowest in the control group (104, IQR 78 - 123) (P = 0.014). SIRT1 level was found to be low in patients with coronary artery disease (P = 0.001), peripheral artery disease (P = 0.008), and hypertension (P = 0.023).
Type A aortic dissections are associated with elevated SIRT1 levels in the tissue. Systemic atherosclerotic diseases, such as coronary and peripheral artery diseases, are associated with decreased SIRT1 levels. There is also a relationship between hypertension and sirtuin1 levels.
Publisher
Sociedade Brasileira de Cirurgia Cardiovascular
