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Selås M. Language profiles in Noonan Syndrome - A multiple case study. CLINICAL LINGUISTICS & PHONETICS 2024; 38:1025-1039. [PMID: 38226429 DOI: 10.1080/02699206.2023.2298976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 12/11/2023] [Accepted: 12/19/2023] [Indexed: 01/17/2024]
Abstract
Noonan Syndrome (NS) is a genetic disorder associated with a diverse range of symptoms. This study aims to provide a comprehensive description of the linguistic profiles of children and adolescents with NS, focusing on vocabulary, grammar skills, phonological memory skills, working memory skills, and visuospatial skills. Sixteen participants aged 6-16 took part in the study. The findings reveal substantial variation in the affected linguistic areas, with some participants demonstrated normal findings, while inconsistent and overall weak language skills were observed in a large subgroup of participants.
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Affiliation(s)
- Magnhild Selås
- Department of Nordic and Media studies, University of Agder, Kristiansand, Norway
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2
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Siqueiros-Sanchez M, Serur Y, McGhee CA, Smith TF, Green T. Social Communication in Ras Pathway Disorders: A Comprehensive Review from Genetics to Behavior in Neurofibromatosis Type 1 and Noonan Syndrome. Biol Psychiatry 2024:S0006-3223(24)01624-X. [PMID: 39366539 DOI: 10.1016/j.biopsych.2024.09.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2024] [Revised: 09/10/2024] [Accepted: 09/22/2024] [Indexed: 10/06/2024]
Abstract
Neurofibromatosis type 1 (NF1) and Noonan syndrome (NS) are neurogenetic syndromes caused by pathogenetic variants encoding components of the Ras-ERK-MAPK signaling pathway (Ras pathway). NF1 and NS are associated with differences in social communication and related neuropsychiatric risks. During the last decade, there has been growing interest in Ras-linked syndromes as models to understand social communication deficits and autism spectrum disorders. We systematically review the literature between 2010-2023 focusing on the social communication construct of the RDoC framework. We provide an integrative summary of the research on facial and non-facial social communication processes in NF1 and NS across molecular, cellular, neural circuitry, and behavioral domains. At the molecular and cellular levels, dysregulation in the Ras pathway is intricately tied to variations in social communication through changes in GABAergic, glutamatergic, and serotonergic transmission, as well as inhibitory/excitatory imbalance. Neural circuitry typically associated with learning, attention, and memory in NF1 and NS (e.g., cortico-striatal connectivity), is also implicated in social communication. We highlight less researched, potential mechanisms for social communication, such as white matter connectivity and the default mode network. Finally, key gaps in NF1 and NS literature are identified and a roadmap for future research is provided. By leveraging genetic syndromes research, we can understand the mechanisms associated with behaviors and psychiatric disorders.
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Affiliation(s)
- Monica Siqueiros-Sanchez
- Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA, 94305, USA; Division of Interdisciplinary Brain Sciences, Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, CA, 94305, USA.
| | - Yaffa Serur
- Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA, 94305, USA; Division of Interdisciplinary Brain Sciences, Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Chloe A McGhee
- Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA, 94305, USA; Division of Interdisciplinary Brain Sciences, Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Taylor F Smith
- Department of Psychology and Child Development, California Polytechnic State University, 1 Grand Ave., San Luis Obispo, CA 93407, USA
| | - Tamar Green
- Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA, 94305, USA; Division of Interdisciplinary Brain Sciences, Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, CA, 94305, USA
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Fasano G, Petrini S, Bonavolontà V, Paradisi G, Pedalino C, Tartaglia M, Lauri A. Assessment of the FRET-based Teen sensor to monitor ERK activation changes preceding morphological defects in a RASopathy zebrafish model and phenotypic rescue by MEK inhibitor. Mol Med 2024; 30:47. [PMID: 38594640 PMCID: PMC11005195 DOI: 10.1186/s10020-024-00807-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 03/12/2024] [Indexed: 04/11/2024] Open
Abstract
BACKGROUND RASopathies are genetic syndromes affecting development and having variable cancer predisposition. These disorders are clinically related and are caused by germline mutations affecting key players and regulators of the RAS-MAPK signaling pathway generally leading to an upregulated ERK activity. Gain-of-function (GOF) mutations in PTPN11, encoding SHP2, a cytosolic protein tyrosine phosphatase positively controlling RAS function, underlie approximately 50% of Noonan syndromes (NS), the most common RASopathy. A different class of these activating mutations occurs as somatic events in childhood leukemias. METHOD Here, we evaluated the application of a FRET-based zebrafish ERK reporter, Teen, and used quantitative FRET protocols to monitor non-physiological RASopathy-associated changes in ERK activation. In a multi-level experimental workflow, we tested the suitability of the Teen reporter to detect pan-embryo ERK activity correlates of morphometric alterations driven by the NS-causing Shp2D61G allele. RESULTS Spectral unmixing- and acceptor photobleaching (AB)-FRET analyses captured pathological ERK activity preceding the manifestation of quantifiable body axes defects, a morphological pillar used to test the strength of SHP2 GoF mutations. Last, the work shows that by multi-modal FRET analysis, we can quantitatively trace back the modulation of ERK phosphorylation obtained by low-dose MEK inhibitor treatment to early development, before the onset of morphological defects. CONCLUSION This work proves the usefulness of FRET imaging protocols on both live and fixed Teen ERK reporter fish to readily monitor and quantify pharmacologically- and genetically-induced ERK activity modulations in early embryos, representing a useful tool in pre-clinical applications targeting RAS-MAPK signaling.
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Affiliation(s)
- Giulia Fasano
- Molecular Genetics and Functional Genomics, Ospedale Pediatrico Bambino Gesù, IRCCS, Rome, 00146, Italy
| | - Stefania Petrini
- Microscopy facility, Research laboratories, Ospedale Pediatrico Bambino Gesù, IRCCS, Rome, 00146, Italy
| | - Valeria Bonavolontà
- Molecular Genetics and Functional Genomics, Ospedale Pediatrico Bambino Gesù, IRCCS, Rome, 00146, Italy
| | - Graziamaria Paradisi
- Molecular Genetics and Functional Genomics, Ospedale Pediatrico Bambino Gesù, IRCCS, Rome, 00146, Italy
- Department for Innovation in Biological Agro-food and Forest systems (DIBAF), University of Tuscia, Viterbo, 01100, Italy
| | - Catia Pedalino
- Molecular Genetics and Functional Genomics, Ospedale Pediatrico Bambino Gesù, IRCCS, Rome, 00146, Italy
| | - Marco Tartaglia
- Molecular Genetics and Functional Genomics, Ospedale Pediatrico Bambino Gesù, IRCCS, Rome, 00146, Italy.
| | - Antonella Lauri
- Molecular Genetics and Functional Genomics, Ospedale Pediatrico Bambino Gesù, IRCCS, Rome, 00146, Italy.
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Patt E, Singhania A, Roberts AE, Morton SU. The Genetics of Neurodevelopment in Congenital Heart Disease. Can J Cardiol 2023; 39:97-114. [PMID: 36183910 DOI: 10.1016/j.cjca.2022.09.026] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 09/23/2022] [Accepted: 09/25/2022] [Indexed: 02/07/2023] Open
Abstract
Congenital heart disease (CHD) is the most common birth anomaly, affecting almost 1% of infants. Neurodevelopmental delay is the most common extracardiac feature in people with CHD. Many factors may contribute to neurodevelopmental risk, including genetic factors, CHD physiology, and the prenatal/postnatal environment. Damaging variants are most highly enriched among individuals with extracardiac anomalies or neurodevelopmental delay in addition to CHD, indicating that genetic factors have an impact beyond cardiac tissues in people with CHD. Potential sources of genetic risk include large deletions or duplications that affect multiple genes, such as 22q11 deletion syndrome, single genes that alter both heart and brain development, such as CHD7, and common variants that affect neurodevelopmental resiliency, such as APOE. Increased use of genome-sequencing technologies in studies of neurodevelopmental outcomes in people with CHD will improve our ability to detect relevant genes and variants. Ultimately, such knowledge can lead to improved and more timely intervention of learning support for affected children.
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Affiliation(s)
- Eli Patt
- Harvard Medical School, Boston, Massachusetts, USA
| | - Asmita Singhania
- School of Medical Sciences, University of Manchester, Manchester, United Kingdom
| | - Amy E Roberts
- Department of Cardiology, Boston Children's Hospital, Boston, Massachusetts, USA; Department of Pediatrics, Harvard Medical School, Boston, Massachusetts, USA; Division of Genetics and Genomics, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Sarah U Morton
- Department of Pediatrics, Harvard Medical School, Boston, Massachusetts, USA; Division of Newborn Medicine, Boston Children's Hospital, Boston, Massachusetts, USA.
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Zenker M, Edouard T, Blair JC, Cappa M. Noonan syndrome: improving recognition and diagnosis. Arch Dis Child 2022; 107:1073-1078. [PMID: 35246453 PMCID: PMC9685729 DOI: 10.1136/archdischild-2021-322858] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 02/11/2022] [Indexed: 12/14/2022]
Abstract
Noonan syndrome (NS) is a mostly dominantly inherited disorder affecting 1:1000 to 1:2500 live births. The phenotype varies in severity and can involve multiple organ systems over a patient's lifetime. Diagnosis is based on a combination of features, including typical facial features, short stature, skeletal abnormalities, presence of cardiac defects, mild developmental delay, cryptorchidism, lymphatic dysplasia and a family history of NS. The phenotype varies from oligosymptomatic adults without significant medical issues to severely affected neonates with life-threatening heart disease. Early, accurate diagnosis is important for individualised management and to optimise developmental and long-term outcomes, but mildly affected patients often go undiagnosed for both healthcare provider (HCP)-related and patient-related reasons. Lack of awareness of NS among HCPs means that some do not recognise the condition, particularly in mildly affected patients and families. Some families do not want to receive a diagnosis that medicalises a condition that may account for family traits (eg, distinctive facial features and short stature), particularly when a child's physical and cognitive development may be satisfactory. As for any condition with lifelong effects on multiple organ systems, a multidisciplinary approach provides the best care. It is proposed that increasing awareness of NS among non-specialist HCPs and other professionals could help direct a parent/carer to seek specialist advice and increase the number of NS diagnoses, with the potential to optimise lifelong patient outcomes. Non-specialists do not need to become experts in either diagnosis or treatment; however, early recognition of NS and referral to an appropriate specialist is important.
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Affiliation(s)
- Martin Zenker
- Institute of Human Genetics, University Hospital Magdeburg, Magdeburg, Germany
| | - Thomas Edouard
- Endocrine, Bone Diseases and Genetics Unit, Toulouse University Hospital, Toulouse, France
| | - Joanne C Blair
- Department of Paediatric Endocrinology, Alder Hey Children's NHS Foundation Trust, Liverpool, UK
| | - Marco Cappa
- Department of Endocrinology, Bambino Gesu Children's Hospital-Tor Vergata University, Rome, Italy
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Aberrant Cortical Layer Development of Brain Organoids Derived from Noonan Syndrome-iPSCs. Int J Mol Sci 2022; 23:ijms232213861. [PMID: 36430334 PMCID: PMC9699065 DOI: 10.3390/ijms232213861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 11/01/2022] [Accepted: 11/09/2022] [Indexed: 11/12/2022] Open
Abstract
Noonan syndrome (NS) is a genetic disorder mainly caused by gain-of-function mutations in Src homology region 2-containing protein tyrosine phosphatase 2 (SHP2). Although diverse neurological manifestations are commonly diagnosed in NS patients, the mechanisms as to how SHP2 mutations induce the neurodevelopmental defects associated with NS remain elusive. Here, we report that cortical organoids (NS-COs) derived from NS-induced pluripotent stem cells (iPSCs) exhibit developmental abnormalities, especially in excitatory neurons (ENs). Although NS-COs develop normally in their appearance, single-cell transcriptomic analysis revealed an increase in the EN population and overexpression of cortical layer markers in NS-COs. Surprisingly, the EN subpopulation co-expressing the upper layer marker SATB2 and the deep layer maker CTIP2 was enriched in NS-COs during cortical development. In parallel with the developmental disruptions, NS-COs also exhibited reduced synaptic connectivity. Collectively, our findings suggest that perturbed cortical layer identity and impeded neuronal connectivity contribute to the neurological manifestations of NS.
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Wingbermühle E, Roelofs RL, Oomens W, Kramer J, Draaisma JMT, Leenders E, Kleefstra T, Kessels RPC, Egger JIM. Cognitive Phenotype and Psychopathology in Noonan Syndrome Spectrum Disorders through Various Ras/MAPK Pathway Associated Gene Variants. J Clin Med 2022; 11:jcm11164735. [PMID: 36012976 PMCID: PMC9410383 DOI: 10.3390/jcm11164735] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 08/01/2022] [Accepted: 08/11/2022] [Indexed: 12/02/2022] Open
Abstract
Cognitive difficulties are argued to be common in patients with Noonan syndrome spectrum disorders (NSSDs), but findings are based on studies in which patients with variants in PTPN11 (prevalence ~50%) were overrepresented. The current study, using a structured clinical approach, describes the cognitive phenotype and psychopathology of 100 patients (aged 6 to 61 years) with nine different gene variants in the Ras/MAPK pathway underlying NSSDs (PTPN11n = 61, PTPN11 Noonan syndrome with multiple lentigines n = 3, SOS1n = 14, KRASn = 7, LZTR1n = 5, RAF1n = 4, SHOC2n = 2, CBLn = 2, SOS2n = 2). After weighted assessment and bootstrapping of the results of individual neuropsychological assessments and measures of psychopathology, cognitive performances in most variant groups were within the ranges of expectation. IQs were significantly lower in patients with variants in PTPN11, KRAS, RAF1, and SHOC2, but no specific cognitive impairments were found. The performances of younger participants (<16 years of age) did not differ from those of adults. Alexithymia and internalizing problems were more frequent in patients with variants in PTPN11 and SOS1, while PTPN11 patients also showed higher levels of externalizing problems. These results stress the need to take intelligence into account when interpreting lower cognitive performances in individual neuropsychological assessments, which is crucial for an adequate understanding and guidance of patients with NSSDs.
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Affiliation(s)
- Ellen Wingbermühle
- Center of Excellence for Neuropsychiatry, Vincent van Gogh Institute for Psychiatry, 5803 DM Venray, The Netherlands
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, 6525 GD Nijmegen, The Netherlands
- Department of Human Genetics, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands
- Correspondence:
| | - Renée L. Roelofs
- Center of Excellence for Neuropsychiatry, Vincent van Gogh Institute for Psychiatry, 5803 DM Venray, The Netherlands
- Department of Human Genetics, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands
| | - Wouter Oomens
- Center of Excellence for Neuropsychiatry, Vincent van Gogh Institute for Psychiatry, 5803 DM Venray, The Netherlands
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, 6525 GD Nijmegen, The Netherlands
| | - Jennifer Kramer
- Center of Excellence for Neuropsychiatry, Vincent van Gogh Institute for Psychiatry, 5803 DM Venray, The Netherlands
| | - Jos M. T. Draaisma
- Department of Pediatrics, Amalia Children’s Hospital, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands
| | - Erika Leenders
- Department of Human Genetics, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands
| | - Tjitske Kleefstra
- Center of Excellence for Neuropsychiatry, Vincent van Gogh Institute for Psychiatry, 5803 DM Venray, The Netherlands
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, 6525 GD Nijmegen, The Netherlands
- Department of Human Genetics, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands
| | - Roy P. C. Kessels
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, 6525 GD Nijmegen, The Netherlands
- Center of Excellence for Korsakoff and Alcohol-Related Cognitive Disorders, Vincent van Gogh Institute for Psychiatry, 5803 DN Venray, The Netherlands
- Department of Medical Psychology and Radboudumc Alzheimer Center, Radboud University Medical Center, 6500 HB Nijmegen, The Netherlands
| | - Jos I. M. Egger
- Center of Excellence for Neuropsychiatry, Vincent van Gogh Institute for Psychiatry, 5803 DM Venray, The Netherlands
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, 6525 GD Nijmegen, The Netherlands
- Department of Human Genetics, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands
- Center of Excellence for Korsakoff and Alcohol-Related Cognitive Disorders, Vincent van Gogh Institute for Psychiatry, 5803 DN Venray, The Netherlands
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Butler MG, Miller BS, Romano A, Ross J, Abuzzahab MJ, Backeljauw P, Bamba V, Bhangoo A, Mauras N, Geffner M. Genetic conditions of short stature: A review of three classic examples. Front Endocrinol (Lausanne) 2022; 13:1011960. [PMID: 36339399 PMCID: PMC9634554 DOI: 10.3389/fendo.2022.1011960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Accepted: 09/20/2022] [Indexed: 11/30/2022] Open
Abstract
Noonan, Turner, and Prader-Willi syndromes are classical genetic disorders that are marked by short stature. Each disorder has been recognized for several decades and is backed by extensive published literature describing its features, genetic origins, and optimal treatment strategies. These disorders are accompanied by a multitude of comorbidities, including cardiovascular issues, endocrinopathies, and infertility. Diagnostic delays, syndrome-associated comorbidities, and inefficient communication among the members of a patient's health care team can affect a patient's well-being from birth through adulthood. Insufficient information is available to help patients and their multidisciplinary team of providers transition from pediatric to adult health care systems. The aim of this review is to summarize the clinical features and genetics associated with each syndrome, describe best practices for diagnosis and treatment, and emphasize the importance of multidisciplinary teams and appropriate care plans for the pediatric to adult health care transition.
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Affiliation(s)
- Merlin G. Butler
- Department of Psychiatry & Behavioral Sciences, University of Kansas Medical Center, Kansas City, KS, United States
- Department of Pediatrics, University of Kansas Medical Center, Kansas City, KS, United States
- *Correspondence: Merlin G. Butler,
| | - Bradley S. Miller
- Pediatric Endocrinology, University of Minnesota Masonic Children’s Hospital, Minneapolis, MN, United States
| | - Alicia Romano
- Department of Pediatrics, New York Medical College, Valhalla, NY, United States
| | - Judith Ross
- Department of Pediatrics, Nemours Children’s Health, Wilmington, DE, United States
- Department of Pediatrics, Thomas Jefferson University, Philadelphia, PA, United States
| | | | - Philippe Backeljauw
- Cincinnati Children’s Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH, United States
| | - Vaneeta Bamba
- Division of Endocrinology, Children’s Hospital of Philadelphia; Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Amrit Bhangoo
- Pediatric Endocrinology, Children's Health of Orange County (CHOC) Children’s Hospital, Orange, CA, United States
| | - Nelly Mauras
- Division of Endocrinology, Nemours Children’s Health, Jacksonville, FL, United States
| | - Mitchell Geffner
- The Saban Research Institute, Children’s Hospital Los Angeles, Los Angeles, CA, United States
- Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
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Tekendo-Ngongang C, Kruszka P. Noonan syndrome on the African Continent. Birth Defects Res 2021; 112:718-724. [PMID: 32558383 DOI: 10.1002/bdr2.1675] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Accepted: 03/17/2020] [Indexed: 12/17/2022]
Abstract
BACKGROUND Noonan syndrome is a common genetic syndrome caused by pathogenic variants in genes in the Ras/MAPK signaling pathway. The medical literature has an abundance of studies on Noonan syndrome, but few are from the African continent. METHODS The medical literature was searched for studies on Noonan syndrome from the African continent and these reports were added to our experience in Africa. Facial analysis was reviewed from two previous reports from our group using a support vector machine (SVM) algorithm and an analysis using the Face2Gene convolutional neural network technology. RESULTS Individuals with Noonan syndrome from reports in African populations have the classic phenotype characteristics including typical minor facial anomalies such as widely spaced eyes (31-100%), short stature (71-100%), and congenital heart disease with pulmonary stenosis found in 24-100% of patients. Similarly, the genotypes are similar with the majority of variants occurring in the gene PTPN11 (72%) and 36% of these variants occurred in the amino acid residue Asn308, which is most commonly found in other populations. The two separate facial analysis algorithms successfully discriminated Africans with NS from unaffected matched individuals with area under the curve (AUC) of the receiver operator characteristic of 0.94 (SVM) and 0.979 for the Face2Gene research methodology. CONCLUSION Few studies characterizing Noonan syndrome in Africans have been conducted, highlighting the need for more genetic and genomic research in African populations. Available clinical data, genotypes, and facial analysis technology data show that individuals of African descent with NS can be efficiently diagnosed using available standards.
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Affiliation(s)
- Cedrik Tekendo-Ngongang
- Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland, United States
| | - Paul Kruszka
- Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland, United States
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10
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Bell JM, Considine EM, McCallen LM, Chatfield KC. The Prevalence of Noonan Spectrum Disorders in Pediatric Patients with Pulmonary Valve Stenosis. J Pediatr 2021; 234:134-141.e5. [PMID: 33794220 DOI: 10.1016/j.jpeds.2021.03.050] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 03/23/2021] [Accepted: 03/25/2021] [Indexed: 12/18/2022]
Abstract
OBJECTIVE To investigate the prevalence of Noonan spectrum disorders in a pediatric population with pulmonary valve stenosis (PVS) and explore other characteristics of Noonan spectrum disorders associated with PVS. STUDY DESIGN A retrospective medical record review was completed for patients with a diagnosis of PVS seen at the Children's Hospital Colorado Cardiology clinic between 2009 and 2019. Syndromic diagnoses, genotypes, cardiac characteristics, and extracardiac characteristics associated with Noonan spectrum disorders were recorded; statistical analysis was conducted using R. RESULTS Syndromic diagnoses were made in 16% of 686 pediatric patients with PVS, with Noonan spectrum disorders accounting for 9% of the total diagnoses. Individuals with Noonan spectrum disorders were significantly more likely to have an atrial septal defect and/or hypertrophic cardiomyopathy than the non-Noonan spectrum disorder individuals. Supravalvar pulmonary stenosis was also correlated significantly with Noonan spectrum disorders. Extracardiac clinical features presenting with PVS that were significantly associated with Noonan spectrum disorders included feeding issues, failure to thrive, developmental delay, short stature, and ocular findings. The strongest predictors of a Noonan spectrum disorder diagnosis were cryptorchidism (70%), pectus abnormalities (66%), and ocular findings (48%). The presence of a second characteristic further increased this likelihood, with the highest probability occurring with cryptorchidism combined with ocular findings (92%). CONCLUSIONS The 9% prevalence of Noonan spectrum disorder in patients with PVS should alert clinicians to consider Noonan spectrum disorders when encountering a pediatric patient with PVS. The presence of PVS with 1 or more Noonan spectrum disorder-related features should prompt a genetic evaluation and genetic testing for RAS pathway defects. Noonan spectrum disorders should also be included in the differential when a patient presents with supravalvar pulmonary stenosis.
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Affiliation(s)
- Janet M Bell
- Department of Pediatrics, University of Colorado School of Medicine, Children's Hospital Colorado, Aurora, CO
| | - Ellen M Considine
- Department of Applied Mathematics, University of Colorado College of Engineering & Applied Science, Laboratory for Interdisciplinary Statistical Analysis (LISA), Boulder, CO
| | - Leslie M McCallen
- Department of Pediatrics, University of Colorado School of Medicine, Children's Hospital Colorado, Aurora, CO
| | - Kathryn C Chatfield
- Department of Pediatrics, University of Colorado School of Medicine, Children's Hospital Colorado, Aurora, CO.
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Abstract
This is the first controlled study regarding personality and psychopathology in adults with Noonan syndrome (NS). Anxiety, depression, alexithymia and symptoms of Attention Deficit-Hyperactivity Disorder and Autism Spectrum Disorder, have been previously described in NS. More information regarding personality and psychopathology in NS could improve mental health care for this population. Therefore, scores on the Minnesota Multiphasic Personality Inventory-2-Restructured Form (MMPI-2-RF), a widely used self-report questionnaire of personality and psychopathology, were compared between patients with NS (n = 18) and matched, healthy controls (n = 18). Furthermore, correlations between MMPI-2-RF scores and alexithymia, measured by the Toronto Alexithymia Scale-20, were investigated. Patients with NS showed significantly higher scores, with medium effect sizes, on MMPI-2-RF scales reflecting infrequent responses (F-r), somatic and cognitive complaints (FBS-r and RBS-r), internalizing problems (EID), demoralization (RCd) and introversion (INTR-r), although the overall profile in both groups was within the non-clinical range. Alexithymia correlated with internalizing problems and negative emotionality in the patient group. In conclusion, patients with NS showed higher levels of introversion, which may predispose them to internalizing problems. These problems were indeed more frequent in patients with NS, especially higher levels of demoralization. Patients may benefit from psychological interventions aimed to decrease internalizing problems, introversion and alexithymia.
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12
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Alfieri P, Cumbo F, Serra G, Trasolini M, Frattini C, Scibelli F, Licchelli S, Cirillo F, Caciolo C, Casini MP, D’Amico A, Tartaglia M, Digilio MC, Capolino R, Vicari S. Manic and Depressive Symptoms in Children Diagnosed with Noonan Syndrome. Brain Sci 2021; 11:brainsci11020233. [PMID: 33668418 PMCID: PMC7918671 DOI: 10.3390/brainsci11020233] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 02/01/2021] [Accepted: 02/08/2021] [Indexed: 12/12/2022] Open
Abstract
Noonan syndrome (NS) is a dominant clinically variable and genetically heterogeneous developmental disorder caused by germ-line mutations encoding components of the Ras–MAPK signaling pathway. A few studies have investigated psychopathological features occurring in individuals with NS, although they were poorly analyzed. The aim of the present work is to investigate the psychopathological features in children and adolescents with NS focusing on depressive and hypo-manic symptoms. Thirty-seven subjects with molecularly confirmed diagnosis were systematically evaluated through a psychopathological assessment. In addition, an evaluation of the cognitive level was performed. Our analyses showed a high recurrence of attention deficit and hyperactivity disorder symptoms, emotional dysregulation, irritability, and anxiety symptomatology. The mean cognitive level was on the average. The present study provides new relevant information on psychopathological features in individuals with NS. The implications for clinicians are discussed including the monitoring of mood disorders in a clinical evolution.
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Affiliation(s)
- Paolo Alfieri
- Child and Adolescent Psychiatry Unit, Department of Neuroscience, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy; (F.C.); (G.S.); (M.T.); (C.F.); (F.S.); (S.L.); (F.C.); (C.C.); (M.P.C.); (S.V.)
- Correspondence: ; Tel.: +39-0668594721
| | - Francesca Cumbo
- Child and Adolescent Psychiatry Unit, Department of Neuroscience, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy; (F.C.); (G.S.); (M.T.); (C.F.); (F.S.); (S.L.); (F.C.); (C.C.); (M.P.C.); (S.V.)
| | - Giulia Serra
- Child and Adolescent Psychiatry Unit, Department of Neuroscience, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy; (F.C.); (G.S.); (M.T.); (C.F.); (F.S.); (S.L.); (F.C.); (C.C.); (M.P.C.); (S.V.)
| | - Monia Trasolini
- Child and Adolescent Psychiatry Unit, Department of Neuroscience, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy; (F.C.); (G.S.); (M.T.); (C.F.); (F.S.); (S.L.); (F.C.); (C.C.); (M.P.C.); (S.V.)
| | - Camilla Frattini
- Child and Adolescent Psychiatry Unit, Department of Neuroscience, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy; (F.C.); (G.S.); (M.T.); (C.F.); (F.S.); (S.L.); (F.C.); (C.C.); (M.P.C.); (S.V.)
| | - Francesco Scibelli
- Child and Adolescent Psychiatry Unit, Department of Neuroscience, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy; (F.C.); (G.S.); (M.T.); (C.F.); (F.S.); (S.L.); (F.C.); (C.C.); (M.P.C.); (S.V.)
| | - Serena Licchelli
- Child and Adolescent Psychiatry Unit, Department of Neuroscience, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy; (F.C.); (G.S.); (M.T.); (C.F.); (F.S.); (S.L.); (F.C.); (C.C.); (M.P.C.); (S.V.)
- Fondazione UILDM Lazio Onlus, 00167, Rome, Italy
| | - Flavia Cirillo
- Child and Adolescent Psychiatry Unit, Department of Neuroscience, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy; (F.C.); (G.S.); (M.T.); (C.F.); (F.S.); (S.L.); (F.C.); (C.C.); (M.P.C.); (S.V.)
| | - Cristina Caciolo
- Child and Adolescent Psychiatry Unit, Department of Neuroscience, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy; (F.C.); (G.S.); (M.T.); (C.F.); (F.S.); (S.L.); (F.C.); (C.C.); (M.P.C.); (S.V.)
| | - Maria Pia Casini
- Child and Adolescent Psychiatry Unit, Department of Neuroscience, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy; (F.C.); (G.S.); (M.T.); (C.F.); (F.S.); (S.L.); (F.C.); (C.C.); (M.P.C.); (S.V.)
- Section of Child and Adolescent Neurology and Psychiatry, Department of Human Neuroscience, Sapienza University of Rome, 00161 Rome, Italy
| | - Adele D’Amico
- Unit of Neuromuscular and Neurodegenerative Disorders, Department of Neuroscience, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy;
| | - Marco Tartaglia
- Genetics and Rare Diseases Research Division, Bambino Gesù Children’s Hospital, IRCCS, 00146 Rome, Italy; (M.T.); (M.C.D.); (R.C.)
| | - Maria Cristina Digilio
- Genetics and Rare Diseases Research Division, Bambino Gesù Children’s Hospital, IRCCS, 00146 Rome, Italy; (M.T.); (M.C.D.); (R.C.)
| | - Rossella Capolino
- Genetics and Rare Diseases Research Division, Bambino Gesù Children’s Hospital, IRCCS, 00146 Rome, Italy; (M.T.); (M.C.D.); (R.C.)
| | - Stefano Vicari
- Child and Adolescent Psychiatry Unit, Department of Neuroscience, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy; (F.C.); (G.S.); (M.T.); (C.F.); (F.S.); (S.L.); (F.C.); (C.C.); (M.P.C.); (S.V.)
- Department of Life Sciences and Public Health, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
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13
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McNeill AM, Hudock RL, Foy AMH, Shanley R, Semrud-Clikeman M, Pierpont ME, Berry SA, Sommer K, Moertel CL, Pierpont EI. Emotional functioning among children with neurofibromatosis type 1 or Noonan syndrome. Am J Med Genet A 2019; 179:2433-2446. [PMID: 31566897 DOI: 10.1002/ajmg.a.61361] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 08/13/2019] [Accepted: 09/05/2019] [Indexed: 12/13/2022]
Abstract
While neurofibromatosis type 1 (NF1) and Noonan syndrome (NS) are clinically distinct genetic syndromes, they have overlapping features because they are caused by pathogenic variants in genes encoding molecules within the Ras-mitogen-activated protein kinase signaling pathway. Increased risk for emotional and behavioral challenges has been reported in both children and adults with these syndromes. The current study examined parent-report and self-report measures of emotional functioning among children with NF1 and NS as compared to their unaffected siblings. Parents and children with NS (n = 39), NF1 (n = 39), and their siblings without a genetic condition (n = 32) completed well-validated clinical symptom rating scales. Results from parent questionnaires indicated greater symptomatology on scales measuring internalizing behaviors and symptoms of attention deficit hyperactivity disorder (ADHD) in both syndrome groups as compared with unaffected children. Frequency and severity of emotional and behavioral symptoms were remarkably similar across the two clinical groups. Symptoms of depression and anxiety were higher in children who were also rated as meeting symptom criteria for ADHD. While self-report ratings by children generally correlated with parent ratings, symptom severity was less pronounced. Among unaffected siblings, parent ratings indicated higher than expected levels of anxiety. Study findings may assist with guiding family-based interventions to address emotional challenges.
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Affiliation(s)
- Alana M McNeill
- Division of Clinical Behavioral Neuroscience, Department of Pediatrics, University of Minnesota Medical School, Minneapolis, Minnesota
| | - Rebekah L Hudock
- Division of Clinical Behavioral Neuroscience, Department of Pediatrics, University of Minnesota Medical School, Minneapolis, Minnesota
| | - Allison M H Foy
- Division of Clinical Behavioral Neuroscience, Department of Pediatrics, University of Minnesota Medical School, Minneapolis, Minnesota.,Department of Educational Psychology, University of Wisconsin-Madison, Madison, Wisconsin
| | - Ryan Shanley
- Biostatistics Core, Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota
| | - Margaret Semrud-Clikeman
- Division of Clinical Behavioral Neuroscience, Department of Pediatrics, University of Minnesota Medical School, Minneapolis, Minnesota
| | - Mary Ella Pierpont
- Division of Genetics and Metabolism, Department of Pediatrics, University of Minnesota Medical School, Minneapolis, Minnesota
| | - Susan A Berry
- Division of Genetics and Metabolism, Department of Pediatrics, University of Minnesota Medical School, Minneapolis, Minnesota
| | - Katherine Sommer
- Division of Hematology and Oncology, Department of Pediatrics, University of Minnesota Medical School, Minneapolis, Minnesota
| | - Christopher L Moertel
- Division of Hematology and Oncology, Department of Pediatrics, University of Minnesota Medical School, Minneapolis, Minnesota
| | - Elizabeth I Pierpont
- Division of Clinical Behavioral Neuroscience, Department of Pediatrics, University of Minnesota Medical School, Minneapolis, Minnesota
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14
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Tekendo-Ngongang C, Agenbag G, Bope CD, Esterhuizen AI, Wonkam A. Noonan Syndrome in South Africa: Clinical and Molecular Profiles. Front Genet 2019; 10:333. [PMID: 31057598 PMCID: PMC6477999 DOI: 10.3389/fgene.2019.00333] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Accepted: 03/28/2019] [Indexed: 11/13/2022] Open
Abstract
Noonan Syndrome (NS) is a common autosomal dominant multisystem disorder, caused by mutations in more than 10 genes in the Ras/MAPK signaling pathway. Differential mutation frequencies are observed across populations. Clinical expressions of NS are highly variable and include short stature, distinctive craniofacial dysmorphism, cardiovascular abnormalities, and developmental delay. Little is known about phenotypic specificities and molecular characteristics of NS in Africa. The present study has investigated patients with NS in Cape Town (South Africa). Clinical features were carefully documented in a total of 26 patients. Targeted Next-Generation Sequencing (NGS) was performed on 16 unrelated probands, using a multigene panel comprising 14 genes: PTPN11, SOS1, RIT1, A2ML1, BRAF, CBL, HRAS, KRAS, MAP2K1, MAP2K2, NRAS, RAF1, SHOC2, and SPRED1. The median age at diagnosis was 4.5 years (range: 1 month−51 years). Individuals of mixed-race ancestry were most represented (53.8%), followed by black Africans (30.8%). Our cohort revealed a lower frequency of pulmonary valve stenosis (34.6%) and a less severe developmental milestones phenotype. Molecular analysis found variants predicted to be pathogenic in 5 / 16 cases (31.2%). Among these mutations, two were previously reported: MAP2K1-c.389A>G (p.Tyr130Cys) and PTPN11 - c.1510A>G (p.Met504Val); three are novel: CBL-c.2520T>G (p.Cys840Trp), PTPN11- c.1496C>T (p.Ser499Phe), and MAP2K1- c.200A>C (p.Asp67Ala). Molecular dynamic simulations indicated that novel variants identified impact the stability and flexibility of their corresponding proteins. Genotype-phenotype correlations showed that clinical features of NS were more typical in patients with variants in MAP2K1. This first application of targeted NGS for the molecular diagnosis of NS in South Africans suggests that, while there is no major phenotypic difference compared to other populations, the distribution of genetic variants in NS in South Africans may be different.
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Affiliation(s)
- Cedrik Tekendo-Ngongang
- Division of Human Genetics, Departments of Medicine and Pathology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Gloudi Agenbag
- Division of Human Genetics, Departments of Medicine and Pathology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Christian Domilongo Bope
- Division of Human Genetics, Departments of Medicine and Pathology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa.,Departments of Mathematics and Computer Sciences, Faculty of Sciences, University of Kinshasa, Kinshasa, Democratic Republic of Congo
| | - Alina Izabela Esterhuizen
- Division of Human Genetics, Departments of Medicine and Pathology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa.,National Health Laboratory Service, Groote Schuur Hospital, Cape Town, South Africa
| | - Ambroise Wonkam
- Division of Human Genetics, Departments of Medicine and Pathology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa.,Faculty of Health Sciences, Institute of Infectious Diseases and Molecular Medicine, University of Cape Town, Cape Town, South Africa
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15
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Knowles EEM, Mathias SR, Mollon J, Rodrigue A, Koenis MMG, Dyer TD, Goring HHH, Curran JE, Olvera RL, Duggirala R, Almasy L, Blangero J, Glahn DC. A QTL on chromosome 3q23 influences processing speed in humans. GENES, BRAIN, AND BEHAVIOR 2019; 18:e12530. [PMID: 30379395 PMCID: PMC6458095 DOI: 10.1111/gbb.12530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 09/24/2018] [Accepted: 10/18/2018] [Indexed: 10/28/2022]
Abstract
Processing speed is a psychological construct that refers to the speed with which an individual can perform any cognitive operation. Processing speed correlates strongly with general cognitive ability, declines sharply with age and is impaired across a number of neurological and psychiatric disorders. Thus, identifying genes that influence processing speed will likely improve understanding of the genetics of intelligence, biological aging and the etiologies of numerous disorders. Previous genetics studies of processing speed have relied on simple phenotypes (eg, mean reaction time) derived from single tasks. This strategy assumes, erroneously, that processing speed is a unitary construct. In the present study, we aimed to characterize the genetic architecture of processing speed by using a multidimensional model applied to a battery of cognitive tasks. Linkage and QTL-specific association analyses were performed on the factors from this model. The randomly ascertained sample comprised 1291 Mexican-American individuals from extended pedigrees. We found that performance on all three distinct processing-speed factors (Psychomotor Speed; Sequencing and Shifting and Verbal Fluency) were moderately and significantly heritable. We identified a genome-wide significant quantitative trait locus (QTL) on chromosome 3q23 for Psychomotor Speed (LOD = 4.83). Within this locus, we identified a plausible and interesting candidate gene for Psychomotor Speed (Z = 2.90, P = 1.86 × 10-03 ).
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Affiliation(s)
- Emma E. M. Knowles
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA
| | - Samuel R. Mathias
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA
| | - Josephine Mollon
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA
| | - Amanda Rodrigue
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA
| | - Marinka M. G. Koenis
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA
| | - Thomas D. Dyer
- South Texas Diabetes and Obesity Institute and Department of Human Genetics, University of Texas of the Rio Grande Valley School of Medicine, Brownsville, TX, USA
| | - Harald H. H. Goring
- South Texas Diabetes and Obesity Institute and Department of Human Genetics, University of Texas of the Rio Grande Valley School of Medicine, Brownsville, TX, USA
| | - Joanne E. Curran
- South Texas Diabetes and Obesity Institute and Department of Human Genetics, University of Texas of the Rio Grande Valley School of Medicine, Brownsville, TX, USA
| | - Rene L. Olvera
- Department of Psychiatry, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
| | - Ravi Duggirala
- South Texas Diabetes and Obesity Institute and Department of Human Genetics, University of Texas of the Rio Grande Valley School of Medicine, Brownsville, TX, USA
| | - Laura Almasy
- Department of Genetics at University of Pennsylvania and Department of Biomedical and Health Informatics at Children’s Hospital of Philadelphia, PA, USA
| | - John Blangero
- South Texas Diabetes and Obesity Institute and Department of Human Genetics, University of Texas of the Rio Grande Valley School of Medicine, Brownsville, TX, USA
| | - David C. Glahn
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA
- Olin Neuropsychiatric Research Center, Institute of Living, Hartford Hospital, Hartford, CT, USA
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16
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Pierpont ME, Brueckner M, Chung WK, Garg V, Lacro RV, McGuire AL, Mital S, Priest JR, Pu WT, Roberts A, Ware SM, Gelb BD, Russell MW. Genetic Basis for Congenital Heart Disease: Revisited: A Scientific Statement From the American Heart Association. Circulation 2018; 138:e653-e711. [PMID: 30571578 PMCID: PMC6555769 DOI: 10.1161/cir.0000000000000606] [Citation(s) in RCA: 349] [Impact Index Per Article: 58.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
This review provides an updated summary of the state of our knowledge of the genetic contributions to the pathogenesis of congenital heart disease. Since 2007, when the initial American Heart Association scientific statement on the genetic basis of congenital heart disease was published, new genomic techniques have become widely available that have dramatically changed our understanding of the causes of congenital heart disease and, clinically, have allowed more accurate definition of the pathogeneses of congenital heart disease in patients of all ages and even prenatally. Information is presented on new molecular testing techniques and their application to congenital heart disease, both isolated and associated with other congenital anomalies or syndromes. Recent advances in the understanding of copy number variants, syndromes, RASopathies, and heterotaxy/ciliopathies are provided. Insights into new research with congenital heart disease models, including genetically manipulated animals such as mice, chicks, and zebrafish, as well as human induced pluripotent stem cell-based approaches are provided to allow an understanding of how future research breakthroughs for congenital heart disease are likely to happen. It is anticipated that this review will provide a large range of health care-related personnel, including pediatric cardiologists, pediatricians, adult cardiologists, thoracic surgeons, obstetricians, geneticists, genetic counselors, and other related clinicians, timely information on the genetic aspects of congenital heart disease. The objective is to provide a comprehensive basis for interdisciplinary care for those with congenital heart disease.
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17
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Pierpont EI, Hudock RL, Foy AM, Semrud-Clikeman M, Pierpont ME, Berry SA, Shanley R, Rubin N, Sommer K, Moertel CL. Social skills in children with RASopathies: a comparison of Noonan syndrome and neurofibromatosis type 1. J Neurodev Disord 2018; 10:21. [PMID: 29914349 PMCID: PMC6006579 DOI: 10.1186/s11689-018-9239-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2018] [Accepted: 06/04/2018] [Indexed: 12/12/2022] Open
Abstract
Background Gene mutations within the RAS-MAPK signaling cascade result in Noonan syndrome (NS), neurofibromatosis type 1 (NF1), and related disorders. Recent research has documented an increased risk for social difficulties and features of autism spectrum disorder (ASD) among children with these conditions. Despite this emerging evidence, the neuropsychological characteristics associated with social skills deficits are not well understood, particularly for children with NS. Methods Parents of children with NS (n = 39), NF1 (n = 39), and unaffected siblings (n = 32) between the ages of 8 and 16 years were administered well-validated caregiver questionnaires assessing their child’s social skills, language abilities, attention-deficit hyperactivity disorder (ADHD) symptoms and anxiety. Results With respect to overall social skills, average ratings of children in both clinical groups were similar, and indicated weaker social skills compared to unaffected siblings. Although ratings of social skills were outside of normal limits for more than four in ten children within the clinical groups, most of the deficits were mild/moderate. Fifteen percent of the children with NS and 5% of the children with NF1 were rated as having severe social skills impairment (< − 2SD). Independent of diagnosis, having fewer ADHD symptoms or better social-pragmatic language skills was predictive of stronger social skills. Conclusions Amidst efforts to support social skill development among children and adolescents with RASopathies, neuropsychological correlates such as social language competence, attention, and behavioral self-regulation could be important targets of intervention.
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Affiliation(s)
- Elizabeth I Pierpont
- Division of Clinical Behavioral Neuroscience, Department of Pediatrics, University of Minnesota, 420 Delaware Street SE, Mayo Mail Code 486, Minneapolis, MN, 55455, USA.
| | - Rebekah L Hudock
- Division of Clinical Behavioral Neuroscience, Department of Pediatrics, University of Minnesota, 420 Delaware Street SE, Mayo Mail Code 486, Minneapolis, MN, 55455, USA
| | - Allison M Foy
- Division of Clinical Behavioral Neuroscience, Department of Pediatrics, University of Minnesota, 420 Delaware Street SE, Mayo Mail Code 486, Minneapolis, MN, 55455, USA
| | - Margaret Semrud-Clikeman
- Division of Clinical Behavioral Neuroscience, Department of Pediatrics, University of Minnesota, 420 Delaware Street SE, Mayo Mail Code 486, Minneapolis, MN, 55455, USA
| | - Mary Ella Pierpont
- Division of Genetics & Metabolism, Department of Pediatrics and Ophthalmology, University of Minnesota, 2450 Riverside Avenue, Minneapolis, MN, 55455, USA
| | - Susan A Berry
- Division of Genetics & Metabolism, Department of Pediatrics and Ophthalmology, University of Minnesota, 2450 Riverside Avenue, Minneapolis, MN, 55455, USA
| | - Ryan Shanley
- Biostatistics Core, University of Minnesota, 717 Delaware Street SE, Minneapolis, MN, 55414, USA
| | - Nathan Rubin
- Biostatistics Core, University of Minnesota, 717 Delaware Street SE, Minneapolis, MN, 55414, USA
| | - Katherine Sommer
- University of Minnesota Health, 2450 Riverside Avenue, Minneapolis, MN, 55455, USA
| | - Christopher L Moertel
- Division of Pediatric Hematology and Oncology, Department of Pediatrics, University of Minnesota, Mayo Mail Code 484, 420 Delaware Street SE, Mayo Mail Code 486, Minneapolis, MN, 55455, USA
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18
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Genetic contribution to neurodevelopmental outcomes in congenital heart disease: are some patients predetermined to have developmental delay? Curr Opin Pediatr 2017; 29:529-533. [PMID: 28719389 PMCID: PMC5653279 DOI: 10.1097/mop.0000000000000530] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE OF REVIEW Neurodevelopmental impairment is common in children with moderate to severe congenital heart disease (CHD). As children live longer and healthier lives, research has focused on identifying causes of neurodevelopmental morbidity that significantly impact long-term quality of life. This review will address the role of genetic factors in predicting neurodevelopmental outcome in CHD. RECENT FINDINGS A robust literature suggests that among children with various forms of CHD, those with known genetic/extracardiac anomalies are at highest risk of neurodevelopmental impairment. Advances in genetic technology have identified genetic causes of CHD in an increasing percentage of patients. Further, emerging data suggest substantial overlap between mutations in children with CHD and those that have previously been associated with neurodevelopmental disorders. SUMMARY Innate and patient factors appear to be more important in predicting neurodevelopmental outcome than medical/surgical variables. Future research is needed to establish a broader understanding of the mutations that contribute to neurodevelopmental disorders and the variations in expressivity and penetrance.
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19
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Pierpont EI, Semrud-Clikeman M, Pierpont ME. Variability in clinical and neuropsychological features of individuals with MAP2K1 mutations. Am J Med Genet A 2016; 173:452-459. [PMID: 27862862 DOI: 10.1002/ajmg.a.38044] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Accepted: 10/18/2016] [Indexed: 11/08/2022]
Abstract
Mutations in MAP2K1, a gene expressed within the RAS-mitogen activated protein kinase (RAS/MAPK) pathway, are generally associated with the clinical phenotype of cardiofaciocutaneous syndrome. Here we describe two male patients (ages 16 and 20 years) with mutations in MAP2K1 and heterogeneous clinical presentations. Both young men had short stature, some facial features suggesting a RASopathy and minimal cardiac involvement. Detailed medical and neuropsychological findings are presented alongside a comprehensive review of features of patients with MAP2K1 mutations reported in the literature. Published studies have indicated that cognitive functioning of individuals with MAP2K1 mutations can range from severe intellectual disability to mildly below average. Neither of the individuals presented here had severe intellectual disability, and one had intellectual functioning within the average range. Neurodevelopmental concerns that were common among our two patients included fine motor difficulties, slow processing speed, reduced attention span, learning disabilities, and diminished energy/alertness. Taken together, our findings demonstrate that mutations in MAP2K1, which are frequently associated with neurological complications and intellectual disability, can be associated with a milder clinical and neurocognitive profile more typical of individuals with Noonan syndrome. Variability of expression may arise from a complex interplay between RAS/MAPK pathway genotype, epigenetics, medical and obstetric factors, and environmental influences. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
| | | | - Mary Ella Pierpont
- Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota.,Children's Hospitals and Clinics of Minnesota, St. Paul, Minnesota
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20
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Selås M, Helland WA. Pragmatic language impairment in children with Noonan syndrome. CLINICAL LINGUISTICS & PHONETICS 2016; 30:899-910. [PMID: 27348294 PMCID: PMC5152542 DOI: 10.1080/02699206.2016.1188422] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Revised: 05/03/2016] [Accepted: 05/08/2016] [Indexed: 06/06/2023]
Abstract
Noonan syndrome (NS) is a disorder causing symptoms like short stature, characteristic facial features, congenital heart disease, possible mental retardation, and pragmatic difficulties. This study describes the pragmatic skills in NS and discusses the linguistic profile of 17 informants aged 6-15 years, by comparing the participants' scores on the Children's Communication Checklist, 2nd edition (CCC-2) (Bishop, 2011), with a group of typically developing children of matching age and gender. Language impairments were common in the NS group. The results show that children and adolescents with NS do not have one coherent pragmatic profile. However, 76.5% of the participants displayed communication impairments, and pragmatic skills were significantly lower than in the control group.
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Affiliation(s)
- Magnhild Selås
- Department of Biological and Medical Psychology, Faculty of Psychology, University of Bergen, Bergen, Norway
| | - Wenche Andersen Helland
- Department of Biological and Medical Psychology, Faculty of Psychology, University of Bergen, Bergen, Norway
- Section of Research & Innovation, Helse Fonna, Haugesund, Norway
- Department of Speech and Language, Statped Vest, Bergen, Norway
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