Noonan syndrome is a genetic multisystem disorder and is associated with mutation of genes encoding the proteins in the RAS-MAPK pathway. We reported the first case of Noonan syndrome complicated with hepatocellular carcinoma.
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Mapping the current status and outlook of research on noonan syndrome over the last 26 years: a bibliometric and visual analysis.
Front Genet
December 2024
Department of Pediatrics, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China.
Background: Noonan syndrome (NS) is a rare group of autosomal genetic disorders. In recent years, with the exploration and development of molecular diagnostic techniques, more and more researchers have begun to pay attention to NS. However, there is still a lack of reports on the bibliometric analysis of NS worldwide.
View Article and Find Full Text PDFClinical features and molecular genetics of patients with RASopathies: expanding the phenotype with rare genes and novel variants.
Eur J Pediatr
December 2024
Department of Medical Genetics, Dr. Behçet Uz Children's Hospital, Izmir, Turkey.
Unlabelled: The RASopathies are a group of disorders resulting from a germline variant in the genes encoding the Ras/mitogen-activated protein kinase pathway. These disorders include Noonan syndrome (NS), cardiofaciocutaneous syndrome (CFC), Costello syndrome (CS), Legius syndrome (LS), and neurofibromatosis type 1 (NF1), and have overlapping clinical features due to RAS/MAPK dysfunction. In this study, we aimed to describe the clinical and molecular features of patients exhibiting phenotypic manifestations consistent with RASopathies.
View Article and Find Full Text PDFDo children with a Noonan syndrome-like RASopathy and avoidant/restrictive food intake disorder benefit from behavioral therapy?
Eur J Pediatr
December 2024
Dept. of Research and Development, SeysCentra, Malden, The Netherlands.
Unlabelled: Children with Noonan syndrome-like RASopathies are at increased risk for developing feeding problems due to comorbid organic impairments at an early age, such as gastrointestinal problems or other organicity. Their feeding problems can ultimately often be classified as avoidant/restrictive food intake disorder, for which behavioral therapy is the first-choice treatment. The research question in this study is whether this treatment leads to similar results as in children without these RASopathies.
View Article and Find Full Text PDFElucidating Microstructural Alterations in Neurodevelopmental Disorders: Application of Advanced Diffusion-Weighted Imaging in Children With Rasopathies.
Hum Brain Mapp
December 2024
Division of Interdisciplinary Brain Sciences, Department of Psychiatry and Behavioral Sciences, Stanford University, Palo Alto, California, USA.
Neurodevelopmental disorders (NDDs) can severely impact functioning yet effective treatments are limited. Greater insight into the neurobiology underlying NDDs is critical to the development of successful treatments. Using a genetics-first approach, we investigated the potential of advanced diffusion-weighted imaging (DWI) techniques to characterize the neural microstructure unique to neurofibromatosis type 1 (NF1) and Noonan syndrome (NS).
View Article and Find Full Text PDFA patient with a PTPN11 gene variant complicated with Chiari I malformation and syringomyelia and a review of literatures.
Int J Dev Neurosci
February 2025
Department of Pediatric Neurology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China.
Background: According to previous literature reports, PTPN11 gene variants account for approximately 50% of Noonan syndrome (NS) cases and 85% of Leopard syndrome (LS) cases. Several patients who were diagnosed with NS or LS complicated with Chiari I malformation (CIM) and/or syringomyelia have been reported to have a PTPN11 variant. However, it is not always clear whether the association between CIM and/or syringomyelia and PTPN11 variants is real or random.
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