Publications by authors named "J Marcadier"

Background: Pathogenic variants in may lead to a syndromic genetic aortopathy. Heritable thoracic aortic disease (HTAD) and arterial events may occur in -related disease but there are limited outcomes data on vascular events in this condition.

Methods: Clinical data, phenotypical features and aortic outcomes in individuals with pathogenic/likely pathogenic (P/LP) variants enrolled in the Montalcino Aortic Consortium registry were reviewed.

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Article Synopsis
  • Researchers identified bi-allelic disruptive variants as the cause of autosomal recessive intellectual developmental disorder type 65, while dominant variants are harder to link to specific traits due to their presence in unaffected individuals.
  • The study involved a retrospective analysis of 21 individuals with likely pathogenic variants, focusing on clinical information and molecular data from their families.
  • Key findings revealed that those with dominant disruptive variants exhibited more developmental and behavioral problems, while individuals with dominant missense variants had a higher occurrence of renal and skin anomalies, enhancing the understanding of the related neurodevelopmental disorder.
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Article Synopsis
  • Dominant variants in the RARB gene cause MCOPS12, a type of microphthalmia that comes with various birth defects and developmental delays, impacting 25 individuals in this study.
  • The research employed transcriptional assays and structural analysis to evaluate how these RARB variants affect its typical function, revealing both gain-of-function and loss-of-function activities.
  • Findings indicate that while RARB disruption leads to a variety of clinical outcomes, some affected individuals may not show key symptoms like eye abnormalities or motor issues, highlighting the complexity of these genetic variations.
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Kleefstra syndrome is a rare genetic disorder caused by haploinsufficiency of the euchromatic histone lysine methyltransferase 1 (EHMT1) gene. It is characterized by a variety of dysmorphic features, comorbid medical issues, and developmental delays/intellectual disability. Neuropsychiatric symptoms may also occur, including autistic features and psychosis, and are often accompanied by functional regression.

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We report a family with 2 neonatal deaths related to dilated cardiomyopathy (DCM) and compound heterozygous loss-of-function variants (c.1243_1244del, p.Leu415Valfs*108 and c.

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