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PP2A Attenuates Thoracic Aneurysm and Dissection in Mouse Models of Marfan Syndrome.
Hypertension
January 2025
Cardiology Division, Department of Medicine, Emory University School of Medicine, Atlanta, GA. (X.Z., Q.X., A.V., Z.L.).
Background: Recent studies show that hyperactivation of mTOR (mammalian target of rapamycin) signaling plays a causal role in the development of thoracic aortic aneurysm and dissection. Modulation of PP2A (protein phosphatase 2A) activity has been shown to be of significant therapeutic value. In light of the effects that PP2A can exert on the mTOR pathway, we hypothesized that PP2A activation by small-molecule activators of PP2A could mitigate AA progression in Marfan syndrome (MFS).
View Article and Find Full Text PDFThe abnormal splicing regulation network caused by synonymous mutations in exon 39 leads to Marfan syndrome.
Genes Dis
May 2025
Department of Clinical Laboratory, Xiang'an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian 361102, China.
Total Anomalous Pulmonary Venous Return, Marfan Syndrome, and Severe Combined Immunodeficiency: A Lethal Combination?
World J Pediatr Congenit Heart Surg
January 2025
Division of Cardiothoracic Surgery, The Heart Institute, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH, USA.
The authors present an exceptionally rare case of a newborn in whom total anomalous pulmonary venous return (TAPVR) had been diagnosed prenatally and in whom genetic testing after neonatal cardiac repair confirmed a missense variant of the gene consistent with Marfan syndrome as well as a gene mutation associated with severe combined immunodeficiency. To the authors' knowledge, this is the first reported case with this unique combination. Neonatal TAPVR repair was undertaken with a good postoperative outcome and survival until the last follow-up.
View Article and Find Full Text PDFLight chain Split Luciferase assay implicates pathological NOTCH3 thiol reactivity in inherited cerebral small vessel disease.
J Biol Chem
January 2025
Departments of Neurology, University of Michigan, Ann Arbor, MI 48109; Departments of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, MI 48109; Neurology Service, VA Ann Arbor Healthcare System, Department of Veterans Affairs, Ann Arbor, MI 48105. Electronic address:
Stereotyped mutations in NOTCH3 drive CADASIL, the leading inherited cause of stroke and vascular dementia. The vast majority of these mutations result in alterations in the number of cysteines in the gene product. However, non-cysteine altering pathogenic mutations have also been identified, making it challenging to discriminate pathogenic from benign NOTCH3 sequence variants.
View Article and Find Full Text PDFA European Delphi Consensus on the Management of Abdominal Aortic Aneurysms in Patients with Heritable Aortic Diseases.
Eur J Vasc Endovasc Surg
January 2025
Universitat Autònoma de Barcelona (UAB), Bellaterra, Spain; Vall d'Hebron Institut de Recerca (VHIR), Barcelona, Spain; Department of Vascular, Endovascular Surgery and Angiology, Hospital Universitari Vall d'Hebron, Barcelona, Spain. Electronic address:
Objective: Abdominal aortic aneurysm (AAA) in a patient with an underlying heritable aortic disease (HAD) is rare, and evidence based recommendations for its management are lacking. This study aimed to generate a consensus from multidisciplinary specialists on the diagnosis, treatment, and surveillance of AAA associated with HAD and to define topics of interest for future research.
Methods: A Delphi consensus was designed involving European multidisciplinary specialists and reported using the ACcurate COnsensus Reporting Document (ACCORD) reporting guideline.
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