31 documents found, page 1 of 4
Detailed Clinical and Psychological Phenotype of the X-linked HNRNPH2-Related N...
Bain, Jennifer M.; Thornburg, Olivia; Pan, Cheryl; Rome-Martin, Donnielle; Boyle, Lia; Fan, Xiao; Devinsky, Orrin; Frye, Richard; Hamp, SilkeObjective: To expand the clinical phenotype of the X-linked HNRNPH2-related neurodevelopmental disorder in 33 individuals. Methods: Participants were diagnosed with pathogenic or likely pathogenic variants in HNRNPH2 using American College of Medical Genetics and Genomics/Association of Molecular Pathology criteria, largely identified via clinical exome sequencing. Genetic reports were reviewed. Clinical data w...
Two Compound Heterozygous Variants in SNX14 Cause Stereotypies and Dystonia in ...
Maia, N; Soares, Gabriela; Silva, Cecília; Marques, Isabel; Rodrigues, Bárbara; Santos, Rosário; Melo-Pires, Manuel; de Brouwer, Arjan PMAutosomal Recessive Spinocerebellar Ataxia 20, SCAR20, is a rare condition characterized by intellectual disability, lack of speech, ataxia, coarse facies and macrocephaly, caused by SNX14 variants. While all cases described are due to homozygous variants that generally result in loss of protein, so far there are no other cases of reported compound heterozygous variants. Here we describe the first non-consangui...
Subtelomeric Rearrangements: Presentation of 21 Probands with Emphasis on Famil...
Soares, Ana Rita; Soares, Gabriela; Mota-Freitas, Manuela; Oliva-Teles, Natália; Fortuna, Ana MariaIntroduction: Intellectual disability affects 2% – 3% of the general population, with a chromosomal abnormality being found in 4% – 28% of these patients and a cryptic subtelomeric abnormality in 3% – 16%. In most cases, these subtelomeric rearrangements are submicroscopic, requiring techniques other than conventional karyotype for detection. They may be de novo or inherited from an affected parent or from a he...
The role of AKT3 copy number changes in brain abnormalities and neurodevelopmen...
Lopes, Fátima Daniela Teixeira; Torres, Fátima; Soares, Gabriela; Karnebeek, Clara D. van; Martins, Cecília; Antunes, Diana; Silva, JoãoMicrodeletions at 1q43-q44 have been described as resulting in a clinically recognizable phenotype of intellectual disability (ID), facial dysmorphisms and microcephaly (MIC). In contrast, the reciprocal microduplications of 1q43-q44 region have been less frequently reported and patients showed a variable phenotype, including macrocephaly. Reports of a large number of patients with copy number variations involv...
Genomic imbalances defining novel intellectual disability associated loci
Lopes, Fátima Daniela Teixeira; Torres, Fátima; Soares, Gabriela; Barbosa, Mafalda; Silva, João; Duque, Frederico; Rocha, Miguel; Sá, JoaquimHigh resolution genome-wide copy number analysis, routinely used in clinical diagnosis for several years, retrieves new and extremely rare copy number variations (CNVs) that provide novel candidate genes contributing to disease etiology. The aim of this work was to identify novel genetic causes of neurodevelopmental disease, inferred from CNVs detected by array comparative hybridization (aCGH), in a cohort of 3...
Genomic imbalances defining novel intellectual disability associated loci
Lopes, Fátima; Torres, Fátima; Soares, Gabriela; Barbosa, Mafalda; Silva, João; Duque, Frederico; Rocha, Miguel; Sá, Joaquim; Oliveira, GuiomarBackground: High resolution genome-wide copy number analysis, routinely used in clinical diagnosis for several years, retrieves new and extremely rare copy number variations (CNVs) that provide novel candidate genes contributing to disease etiology. The aim of this work was to identify novel genetic causes of neurodevelopmental disease, inferred from CNVs detected by array comparative hybridization (aCGH), in a...
Koolen-de Vries syndrome – National Case Series with clinical and molecular cha...
Soares, Marta P.; Rodrigues, Márcia; Dupont, Juliette; Medeira, Ana; Freixo, João; Nunes, Sofia; Cordeiro, Isabel; Travessa, André; Soares, GabrielaIntroduction: Koolen-de Vries Syndrome (KdVS) is a rare genetic condition, caused by a 17q21.31 microdeletion, or a pathogenic variant in KANSL1 gene. The clinical picture includes developmental delay (DD)/intellectual disability (ID) with expressive language particularly impaired, dysmorphisms, neonatal hypotonia, and friendly behaviour. Aim: To characterize at the molecular and clinical levels all patients in...
The role of AKT3 copy number changes in brain abnormalities and neurodevelopmen...
Lopes, Fátima; Torres, Fátima; Soares, Gabriela; van Karnebeek, Clara D.; Martins, Cecília; Antunes, Diana; Silva, João; Muttucomaroe, LaurenMicrodeletions at 1q43-q44 have been described as resulting in a clinically recognizable phenotype of intellectual disability (ID), facial dysmorphisms and microcephaly (MIC). In contrast, the reciprocal microduplications of 1q43-q44 region have been less frequently reported and patients showed a variable phenotype, including macrocephaly. Reports of a large number of patients with copy number variations involv...
Arthrogryposis multiplex congenita affecting a monochorionic diamniotic twin pr...
Brás, Rafael; Veloso, Helena; Moleiro, Maria; Rodrigues, Sofia; Inocencio, Gonçalo; Mota, Céu; Soares, Gabriela; Rodrigues, Maria Céu; Braga, JorgeArthrogryposis multiplex congenita is a clinically and etiologically heterogeneous group of diseases characterized by presence of contractures involving at least two different body areas. It is observed in one in every 3000−5000 live births. A case of singleton arthrogryposis in a spontaneous monochorionic diamniotic twin pregnancy is reported. Diagnosis was established after morphological ultrasound. There wer...
Genomic imbalances defining novel intellectual disability associated loci
Lopes, Fátima; Torres, Fátima; Soares, Gabriela; Barbosa, Mafalda; Silva, João; Duque, Frederico; Rocha, Miguel; Sá, Joaquim; Oliveira, GuiomarBackground: High resolution genome-wide copy number analysis, routinely used in clinical diagnosis for several years, retrieves new and extremely rare copy number variations (CNVs) that provide novel candidate genes contributing to disease etiology. The aim of this work was to identify novel genetic causes of neurodevelopmental disease, inferred from CNVs detected by array comparative hybridization (aCGH), in a...