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Front Cardiovasc Med ; 9: 980103, 2022.
Article in English | MEDLINE | ID: mdl-36148051

ABSTRACT

Background: The mechanism underlying aortic dilatation is still unknown. Vascular dilatation is thought to be the result of progressive aortic media degeneration caused by defective vascular matrix hemostasis, including TGF-ß1 dysregulation. The goal of this study is to draw attention to the potential utility of TGF-ß1 as a diagnostic marker in non-syndromic patients with aortic dilatation. Methods: TGF-ß1 levels in plasma were measured in 50 patients who had undergone surgery and had a tricuspid or bicuspid aortic valve as well as a normal or dilated ascending aorta. A pathologist also examined thirty resected aorta samples. To specify the reference range of TGF-ß1, a control group of 40 volunteers was enrolled in this study. Results: We discovered a significant difference in TGF-ß1 levels between patients with aortic dilatation and the control group (32.5 vs. 63.92; P < 0.001), as well as between patients with non-dilated aorta but with aortic valve disease, and the control group (27.68 vs. 63.92; P < 0.001). There was no difference between the dilated ascending aorta group and the non-dilated ascending aorta group. We found a poor correlation between TGF-ß1 levels and ascending aorta diameter as well as the grade of ascending aorta histopathological abnormalities. Conclusion: TGF-ß1 concentration does not meet the criteria to be a specific marker of aortic dilatation, but it is sensitive to aortic valvulopathy-aortopathy. A larger patient cohort study is needed to confirm these findings.

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