ArticleHeart and vessels2021
Recurrent germline mutations as genetic markers for aortic root dilatation in bicuspid aortic valve patients.
Article in Heart and vessels, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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10 citing papers in PubMed, 17 citations in OpenAlex.
- Identification of a novel pathogenic variant in MYLK in an Iranian family with non-syndromic familial aortic aneurysm and dissection by whole-exome sequencing and literature review.BMC medical genomics · 2026Review
- Systematic Disruption of Zebrafish Fibrillin Genes Identifies a Translational Zebrafish Model for Marfan Syndrome.JACC. Basic to translational science · 2026Article
- In vitro characterization of hemodynamics in bicuspid aortic valves: The impact of valve and ascending aortic morphologies.Magnetic resonance in medicine · 2026Article
- Whole-exome sequencing uncovers the genetic complexity of bicuspid aortic valve in families with early-onset complications.American journal of human genetics · 2024Article
- Whole Exome Sequencing Uncovers the Genetic Complexity of Bicuspid Aortic Valve in Families with Early Onset Complications.medRxiv : the preprint server for health sciences · 2024Article
- Spatial transcriptomics reveals novel genes during the remodelling of the embryonic human arterial valves.PLoS genetics · 2023Article
- Proinflammatory plasticity towards Th17 paradigm of regulatory T cells consistent with elevated prevalence of TGFBR2 variants in elderly patients with primary immune thrombocytopenia.BMC immunology · 2023Article
- Existing and Emerging Approaches to Risk Assessment in Patients with Ascending Thoracic Aortic Dilatation.Journal of imaging · 2022Review
- Identification of recurrent variants implicated in disease in bicuspid aortic valve patients through whole-exome sequencing.Human genomics · 2022Article
- Tracking an Elusive Killer: State of the Art of Molecular-Genetic Knowledge and Laboratory Role in Diagnosis and Risk Stratification of Thoracic Aortic Aneurysm and Dissection.Diagnostics (Basel, Switzerland) · 2022Review
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Authors and funding
6 authors at 3 institutions in 1 country.
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Abstract
Bicuspid aortic valve (BAV) is characterized by elevated risk of aortic dilatation and aneurysm. Although genetic susceptibility is suspected to influence on the development of BAV aortopathy, clinical application of genetic markers still needs validation in BAV entities with strictly defined phenotypic features. The 'root phenotype' represents a young, male predominant, and severely aortic regurgitant BAV population prone to aortic root dilatation. The present study launched a two-step genetic survey to evaluate the clinical significance of germline genetic markers in BAV patients. The whole-exome sequencing (WES) cohort consisted of 13 BAV patients with 'root phenotype' under the age of 40 years. We identified 28 different heterozygous missense mutations in 19 genes from the WES cohort, among which six variants (COL1A2 R882C, COL5A1 I1161F, ACVRL1 R218W, NOTCH1 P1227S, MYLK S243W, MYLK D717Y) were identified as pathogenic variants via unanimous agreement of in silico prediction tool analysis, and three variants (C1R I345L, TGFBR2 V216I, FBN2 G475V) were identified as recurrent variants. The panel of nine genetic markers was tested in an independent validation cohort of 154 BAV patients consecutively included from January to May 2018 in our institution. The validation cohort demonstrated 71.4% male predominance and the average age of 57 ± 13 years, among which 26.6% showed aortic root dilatation and 66.9% ascending aortic dilatation. Genetic markers were found in 32 patients, including 18 with C1R I345L, 11 with TGFBR2 V216I, 2 with FBN2 G475V, and 1 with both TGFBR2 V216I and MYLK D717Y. BAV patients carrying these genetic markers demonstrated younger age [(51 ± 12) vs. (58 ± 13) years, P = 0.014], more moderate to severe aortic regurgitation (56.2% vs. 33.6%, P = 0.019), elevated prevalence of mitral valve prolapse (9.4% vs. 0.8%, P = 0.028) and aortic root dilatation (62.5% vs. 17.2%, P < 0.001) but not ascending aortic dilatation than those without these markers. The early-onset 'root phenotype' entities displayed great value for BAV genetic surveys. As one of the promising complements of the current risk stratification system, recurrent germline mutations in TGFBR2, C1R, FBN2 genes could be identified and applied as genetic markers of elevated susceptibility for aortic root but not ascending aortic dilatation among BAV patients.
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