Publications by authors named "M Niceta"
O'Donnell-Luria-Rodan (ODLURO) syndrome is an autosomal dominant neurodevelopmental disorder mainly characterized by global development delay/intellectual disability, white matter abnormalities, and behavioral manifestations. It is caused by pathogenic variants in the KMT2E gene. Here we report seven new patients with loss-of-function KMT2E variants, six harboring frameshift/nonsense changes, and one with a 7q22.
View Article and Find Full Text PDFArticle Synopsis
- ARID1A and ARID1B duplications are linked to Coffin-Siris syndrome, but ARID1B duplications have not been previously associated with a specific clinical phenotype until now.
- A study analyzed 16 cases of ARID1A and 13 cases of ARID1B duplications, revealing that ARID1A duplications resulted in more severe symptoms, including intellectual disabilities and growth delays, while both groups displayed similar features.
- The research identified unique DNA methylation patterns in ARID1A duplication patients, which differ from those with loss-of-function variants, suggesting the presence of a distinct clinical phenotype for both ARID1A and ARID1B duplications, indicating a new type of
Article Synopsis
- Bardet-Biedl syndrome (BBS) is a rare genetic disorder with symptoms like vision loss, obesity, extra fingers or toes, cognitive issues, and genitourinary defects, caused by mutations in various genes.
- An 18-year-old boy showing symptoms of BBS underwent genetic testing, but initial methods didn't provide a clear diagnosis until whole-genome sequencing revealed two significant genetic changes affecting the BBS9 protein.
- The study emphasizes the importance of whole-genome sequencing for diagnosing rare diseases and highlights the need for functional validation to better understand the impact of genetic variants.
Pathogenic, largely truncating variants in the ETS2 repressor factor (ERF) gene, encoding a transcriptional regulator negatively controlling RAS-MAPK signaling, have been associated with syndromic craniosynostosis involving various cranial sutures and Chitayat syndrome, an ultrarare condition with respiratory distress, skeletal anomalies, and facial dysmorphism. Recently, a single patient with craniosynostosis and a phenotype resembling Noonan syndrome (NS), the most common disorder among the RASopathies, was reported to carry a de novo loss-of-function variant in ERF. Here, we clinically profile 26 individuals from 15 unrelated families carrying different germline heterozygous variants in ERF and showing a phenotype reminiscent of NS.
View Article and Find Full Text PDFHypertrophic cardiomyopathy (HCM) is the major contributor to morbidity and mortality in Noonan syndrome (NS). Gain-of-function variants in RAF1 are associated with high prevalence of HCM. Among these, NM_002880.
View Article and Find Full Text PDF