A 20 year old male patient with sporadic neurofibromatosis type 1 (NF1) is described with a large deletion (1.5 Mb) involving the NF1 gene, dysmorphism, mental retardation, and unusual ocular and skeletal features. Several NF1 patients with a large NF1 deletion and associated dysmorphism, and a large number of neurofibromas for their age have been described. This study indicates that such large deletions can also involve flanking loci which affect ocular and skeletal development.
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http://dx.doi.org/10.1097/01.mcd.0000077565.66911.43 | DOI Listing |
Orphanet J Rare Dis
January 2025
Travere Therapeutics, Inc., San Diego, CA, USA.
Background: Classical homocystinuria (HCU) is a rare genetic metabolic disorder resulting in elevated homocysteine and methionine levels. The clinical characteristics and associated complications of HCU are well documented. However, there is limited published research on the clinical burden of patients with HCU, especially stratified by total homocysteine (tHcy) levels.
View Article and Find Full Text PDFNeuromuscul Disord
December 2024
University of Florida College of Medicine - Jacksonville, Jacksonville, FL, USA.
Sengers Syndrome (SS) is a rare autosomal recessive mitochondrial disorder caused by mutations in the acylglycerol kinase (AGK) gene on chromosome 7, also known as cardiomyopathic mitochondrial DNA depletion syndrome (MTDPS10). This disorder disrupts mitochondrial DNA function and energy metabolism, presenting with symptoms such as congenital cataracts, hypertrophic cardiomyopathy, skeletal myopathy, exercise intolerance, and lactic acidosis. Previous research has shown SS affects oxidative phosphorylation and mitochondrial respiration, implicating the TIM22 complex and carrier import.
View Article and Find Full Text PDFZhonghua Yi Xue Yi Chuan Xue Za Zhi
January 2025
Department of Laboratory, Taizhou Hospital of Zhejiang Province, Taizhou, Zhejiang 318050, China.
Objective: To determine the types of genetic variants in six Chinese pedigrees affected with Marfan syndrome (MFS) and analyze their clinical characteristics and molecular pathogenesis.
Methods: Six MFS pedigrees presented at the Taizhou Enze Medical Center (Group) between 2017 and 2022 were selected as the study subjects. Clinical data of pedigrees were retrospectively analyzed.
Neurosurg Focus
January 2025
1Department of Pediatric Neurosurgery, Hôpital Necker - Enfants Malades, Assistance Publique-Hôpitaux de Paris.
Objective: Craniosynostoses are an underrecognized cause of intracranial hypertension (ICH), especially when associated with congenital syndromes. Alagille syndrome (ALGS) is a multisystem disorder with typical facial features and hepatobiliary, cardiac, vascular, skeletal, and ocular manifestations. The occurrence of craniosynostosis in ALGS is rare and can be associated with chronic ICH, requiring craniofacial surgery to increase the intracranial volume.
View Article and Find Full Text PDFOphthalmic Genet
December 2024
Department of Ophthalmology, Université de Montréal, Montreal, Québec, Canada.
Introduction: Neurodevelopmental disorder with dysmorphic facies and distal skeletal anomalies (NEDDFSA) is a recently described syndromic disease linked to genetic variants. We present a novel variant associated with a phenotype of NEDDFSA in a pediatric patient presenting with multiple anomalies including bilateral congenital ptosis and blepharophimosis, floppy eyelids, telecanthus, downward palpebral slants, myopia, cryptorchidism, hallux valgus and developmental delay.
Methods: Genetic testing performed on a large panel revealed a likely pathogenic variant in the gene (heterozygous, c.
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