Serological level of transforming growth factor-β as a predictive biomarker of aortic enlargement in patients with Marfan syndrome

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Marfan syndrome - an inherited, autosomal dominant disease with an expected rate of 3-5/10 000 or fraction of 20-25% of new mutations, accompanied by violation of the connective tissue that occurs as a result of gene mutations FBN1, coding for the synthesis of fibrillin-1, performing the most important role in the modulation physiological bioavailability TGF-β (transforming growth factor-β). Prediction of aortic rupture is based on the identification of risk factors: family history, the absolute size of the aortic root, the rate of expansion of the aorta, which are based on the results of the history and techniques of imaging ultrasound, CT, MRI. At the same time there is a chance of developing aortic rupture under normal aortic root size and the absence of any risk factors, as well as after the prophylactic prosthetic aortic root. This makes it necessary to search for alternative prognostic markers, threatening bundle and rupture of the aorta. Article verified the predictive role of TGF-β as a serological biomarker for assessing the extension of the aortic root in patients with Marfan syndrome (n = 23, F : M / 7 : 16; 33 ± 9.3 years). The article describes the patterns between TGF-β and the size and the reconstruction of the aneurysm of the thoracic aorta. It was found that elevated levels of serum TGF-β1 (49.1 ng/ml Vs 29.15 ng/ml in the control, p < 0.05) in patients with MS diagnosed with an extension of the aortic root (Z > 1.96) can serve as a serological marker to poor prognosis, accompanied by an increase in the size of the aortic root. In patients with normal-sized aorta, and after aortic reconstruction serum TGFβ1 not elevated. Serum TGFβ may be a promising target for therapeutic, diagnostic and prognostic tactics which are not based on imaging techniques.

Andrey S Rudoy

Author for correspondence.
Belarusian State Medical University
Russian Federation

MD, PhD, Dr Med Sci, Associate Professor, Head, Department of Military Field Therapy

Alexey M Uryvaev
Belarusian State Medical University
Russian Federation

Assistant Professor, Department of Military Field Therapy

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