Further Evidence for DLGAP2 as Strong Autism Spectrum Disorders/Intellectual Disability Candidate Gene / Hélène POQUET in Autism - Open Access, 7-1 ([01/01/2017])  

Public ISBD [article]  inAutism - Open Access > 7-1 [01/01/2017] . - 8 p. Titre : Further Evidence for DLGAP2 as Strong Autism Spectrum Disorders/Intellectual Disability Candidate Gene Type de document : Texte imprimé et/ou numérique Auteurs : Hélène POQUET, Auteur ; Laurence FAIVRE, Auteur ; Salima EL CHEHADEH, Auteur ; Jenny MORTON, Auteur ; Dominic MCMULLAN, Auteur ; Susan HAMILTON, Auteur ; Himanshu GOEL, Auteur ; Bertrand ISIDOR, Auteur ; Cédric LE CAIGNEC, Auteur ; Joris ANDRIEUX, Auteur ; Bruno DELOBEL, Auteur ; Eva PIPIRAS, Auteur ; Anne-Claude TABET, Auteur ; Andrée DELAHAYE, Auteur ; Loic DEPONTUAL, Auteur ; Mathilde LEFEBVRE, Auteur ; Caroline JACQUOT, Auteur ; Alice MASUREL, Auteur ; Frédéric HUET, Auteur ; Jean-Michel PINOIT, Auteur ; Vincent MEILLE, Auteur ; Maud BENETTI, Auteur ; Eddy PONAVOY, Auteur ; Jean-Christophe CHAUVET-GELINIER, Auteur ; Benoit TROJAK, Auteur ; Bernard BONIN, Auteur ; Christine JUIF, Auteur ; Anne COLLINET DE LA SALLE, Auteur ; Christel THAUVIN-ROBINET, Auteur ; Nathalie LAGARDE, Auteur ; Céline HENRY, Auteur ; Nathalie MARLE, Auteur ; Patrick CALLIER, Auteur ; Anne-Laure MOSCA-BOIDRON, Auteur Article en page(s) : 8 p. Langues : Anglais (eng) Mots-clés : Autism spectrum disorders  Array-CGH  Copy number variation  Intellectual disability  Neurodevelopmental disorders  DLGAP2 Index. décimale : PER Périodiques Résumé : Autism spectrum disorders are classified as neurodevelopmental disorders characterised by diminished social communication and interaction. The core symptoms typically coexist with other medical conditions such as intellectual disability. The involvement of rare copy number variations of varying expressivity and penetrance as risk factors in autism spectrum disorders/intellectual disability phenotypes has been highlighted in large series. TheDLGAP2 gene, whose glutamatergic postsynaptic density product may play a role in synaptogenesis and plasticity, has been identified as a novel candidate on the basis of 2 de novo duplications in sporadic non-syndromic autism spectrum disorders/intellectual disability males. It has also been suggested that increased DLGAP2 gene expression may contribute to the pathogenesis of schizophrenia spectrum disorders. Based on these results and after fine phenotyping of another patient with a de novo duplication involving DLGAP2 and presenting with autism spectrum disorder intersecting early-onset schizophrenia spectrum disorder, we gathered an international series of 9 cases (6families) via international data sharing. Four sporadic males presented with autism spectrum disorders and one had other neurodevelopmental disorders. A family with 4 females displayed intellectual disability (2/4) and specific learning disorder (2/4). This study supports the hypothesis that rare copy number variations encompassing DLGAP2with incomplete penetrance and variable expressivity could predispose to a broad range of early-onset neurodevelopmental disorders trajectories including autism spectrum disorders/intellectual disability, highlighting the existence of common predisposing factors to these overlapping phenotypic spectrums. En ligne : https://dx.doi.org/10.4172/2165-7890.1000197 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=410 [article] Further Evidence for DLGAP2 as Strong Autism Spectrum Disorders/Intellectual Disability Candidate Gene [Texte imprimé et/ou numérique] / Hélène POQUET, Auteur ; Laurence FAIVRE, Auteur ; Salima EL CHEHADEH, Auteur ; Jenny MORTON, Auteur ; Dominic MCMULLAN, Auteur ; Susan HAMILTON, Auteur ; Himanshu GOEL, Auteur ; Bertrand ISIDOR, Auteur ; Cédric LE CAIGNEC, Auteur ; Joris ANDRIEUX, Auteur ; Bruno DELOBEL, Auteur ; Eva PIPIRAS, Auteur ; Anne-Claude TABET, Auteur ; Andrée DELAHAYE, Auteur ; Loic DEPONTUAL, Auteur ; Mathilde LEFEBVRE, Auteur ; Caroline JACQUOT, Auteur ; Alice MASUREL, Auteur ; Frédéric HUET, Auteur ; Jean-Michel PINOIT, Auteur ; Vincent MEILLE, Auteur ; Maud BENETTI, Auteur ; Eddy PONAVOY, Auteur ; Jean-Christophe CHAUVET-GELINIER, Auteur ; Benoit TROJAK, Auteur ; Bernard BONIN, Auteur ; Christine JUIF, Auteur ; Anne COLLINET DE LA SALLE, Auteur ; Christel THAUVIN-ROBINET, Auteur ; Nathalie LAGARDE, Auteur ; Céline HENRY, Auteur ; Nathalie MARLE, Auteur ; Patrick CALLIER, Auteur ; Anne-Laure MOSCA-BOIDRON, Auteur . - 8 p. Langues : Anglais (eng) in Autism - Open Access > 7-1 [01/01/2017] . - 8 p. Mots-clés : Autism spectrum disorders  Array-CGH  Copy number variation  Intellectual disability  Neurodevelopmental disorders  DLGAP2 Index. décimale : PER Périodiques Résumé : Autism spectrum disorders are classified as neurodevelopmental disorders characterised by diminished social communication and interaction. The core symptoms typically coexist with other medical conditions such as intellectual disability. The involvement of rare copy number variations of varying expressivity and penetrance as risk factors in autism spectrum disorders/intellectual disability phenotypes has been highlighted in large series. TheDLGAP2 gene, whose glutamatergic postsynaptic density product may play a role in synaptogenesis and plasticity, has been identified as a novel candidate on the basis of 2 de novo duplications in sporadic non-syndromic autism spectrum disorders/intellectual disability males. It has also been suggested that increased DLGAP2 gene expression may contribute to the pathogenesis of schizophrenia spectrum disorders. Based on these results and after fine phenotyping of another patient with a de novo duplication involving DLGAP2 and presenting with autism spectrum disorder intersecting early-onset schizophrenia spectrum disorder, we gathered an international series of 9 cases (6families) via international data sharing. Four sporadic males presented with autism spectrum disorders and one had other neurodevelopmental disorders. A family with 4 females displayed intellectual disability (2/4) and specific learning disorder (2/4). This study supports the hypothesis that rare copy number variations encompassing DLGAP2with incomplete penetrance and variable expressivity could predispose to a broad range of early-onset neurodevelopmental disorders trajectories including autism spectrum disorders/intellectual disability, highlighting the existence of common predisposing factors to these overlapping phenotypic spectrums. En ligne : https://dx.doi.org/10.4172/2165-7890.1000197 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=410

Touch and olfaction/taste differentiate children carrying a 16p11.2 deletion from children with ASD / Joana Maria Almeida OSORIO in Molecular Autism, 12 (2021)  

Public ISBD [article]  inMolecular Autism > 12 (2021) . - 8p. Titre : Touch and olfaction/taste differentiate children carrying a 16p11.2 deletion from children with ASD Type de document : Texte imprimé et/ou numérique Auteurs : Joana Maria Almeida OSORIO, Auteur ; Borja RODRIGUEZ-HERREROS, Auteur ; David ROMASCANO, Auteur ; Vincent JUNOD, Auteur ; Aline HABEGGER, Auteur ; Aurélie PAIN, Auteur ; Sonia RICHETIN, Auteur ; Paola YU, Auteur ; Bertrand ISIDOR, Auteur ; Lionel VAN MALDERGEM, Auteur ; Linda PONS, Auteur ; Sabine MANIFICAT, Auteur ; Nadia CHABANE, Auteur ; Marine JEQUIER GYGAX, Auteur ; Anne Manuela MAILLARD, Auteur Article en page(s) : 8p. Langues : Anglais (eng) Mots-clés : 16p11.2 deletion  Autism spectrum disorder (ASD)  Children  Copy number variants (CNV)  Olfaction  Sensory processing  Sensory processing measure (SPM)  Touch Index. décimale : PER Périodiques Résumé : BACKGROUND: Sensory processing atypicalities are frequent in Autism Spectrum Disorder (ASD) and neurodevelopmental disorders (NDD). Different domains of sensory processing appear to be differentially altered in these disorders. In this study, we explored the sensory profile of two clinical cohorts, in comparison with a sample of typically developing children. METHODS: Behavioral responses to sensory stimuli were assessed using the Sensory Processing Measure (parent-report questionnaire). We included 121 ASD children, 17 carriers of the 16p11.2 deletion (Del 16p11.2) and 45 typically developing (TD) children. All participants were aged between 2 and 12 years. Additional measures included the Tactile Defensiveness and Discrimination Test-Revised, Wechsler Intelligence Scales and Autism Diagnostic Observation Schedule (ADOS-2). Statistical analyses included MANCOVA and regression analyses. RESULTS: ASD children score significantly higher on all SPM subscales compared to TD. Del16p11.2 also scored higher than TD on all subscales except for tactile and olfactory/taste processing, in which they score similarly to TD. When assessing sensory modulation patterns (hyper-, hypo-responsiveness and seeking), ASD did not significantly differ from del16p11.2. Both groups had significantly higher scores across all patterns than the TD group. There was no significant association between the SPM Touch subscale and the TDDT-R. LIMITATIONS: Sensory processing was assessed using a parent-report questionnaire. Even though it captures observable behavior, a questionnaire does not assess sensory processing in all its complexity. The sample size of the genetic cohort and the small subset of ASD children with TDDT-R data render some of our results exploratory. Divergence between SPM Touch and TDDT-R raises important questions about the nature of the process that is assessed. CONCLUSIONS: Touch and olfaction/taste seem to be particularly affected in ASD children compared to del16p11.2. These results indicate that parent report measures can provide a useful perspective on behavioral expression. Sensory phenotyping, when combined with neurobiological and psychophysical methods, might have the potential to provide a better understanding of the sensory processing in ASD and in other NDD. En ligne : http://dx.doi.org/10.1186/s13229-020-00410-w Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=442 [article] Touch and olfaction/taste differentiate children carrying a 16p11.2 deletion from children with ASD [Texte imprimé et/ou numérique] / Joana Maria Almeida OSORIO, Auteur ; Borja RODRIGUEZ-HERREROS, Auteur ; David ROMASCANO, Auteur ; Vincent JUNOD, Auteur ; Aline HABEGGER, Auteur ; Aurélie PAIN, Auteur ; Sonia RICHETIN, Auteur ; Paola YU, Auteur ; Bertrand ISIDOR, Auteur ; Lionel VAN MALDERGEM, Auteur ; Linda PONS, Auteur ; Sabine MANIFICAT, Auteur ; Nadia CHABANE, Auteur ; Marine JEQUIER GYGAX, Auteur ; Anne Manuela MAILLARD, Auteur . - 8p. Langues : Anglais (eng) in Molecular Autism > 12 (2021) . - 8p. Mots-clés : 16p11.2 deletion  Autism spectrum disorder (ASD)  Children  Copy number variants (CNV)  Olfaction  Sensory processing  Sensory processing measure (SPM)  Touch Index. décimale : PER Périodiques Résumé : BACKGROUND: Sensory processing atypicalities are frequent in Autism Spectrum Disorder (ASD) and neurodevelopmental disorders (NDD). Different domains of sensory processing appear to be differentially altered in these disorders. In this study, we explored the sensory profile of two clinical cohorts, in comparison with a sample of typically developing children. METHODS: Behavioral responses to sensory stimuli were assessed using the Sensory Processing Measure (parent-report questionnaire). We included 121 ASD children, 17 carriers of the 16p11.2 deletion (Del 16p11.2) and 45 typically developing (TD) children. All participants were aged between 2 and 12 years. Additional measures included the Tactile Defensiveness and Discrimination Test-Revised, Wechsler Intelligence Scales and Autism Diagnostic Observation Schedule (ADOS-2). Statistical analyses included MANCOVA and regression analyses. RESULTS: ASD children score significantly higher on all SPM subscales compared to TD. Del16p11.2 also scored higher than TD on all subscales except for tactile and olfactory/taste processing, in which they score similarly to TD. When assessing sensory modulation patterns (hyper-, hypo-responsiveness and seeking), ASD did not significantly differ from del16p11.2. Both groups had significantly higher scores across all patterns than the TD group. There was no significant association between the SPM Touch subscale and the TDDT-R. LIMITATIONS: Sensory processing was assessed using a parent-report questionnaire. Even though it captures observable behavior, a questionnaire does not assess sensory processing in all its complexity. The sample size of the genetic cohort and the small subset of ASD children with TDDT-R data render some of our results exploratory. Divergence between SPM Touch and TDDT-R raises important questions about the nature of the process that is assessed. CONCLUSIONS: Touch and olfaction/taste seem to be particularly affected in ASD children compared to del16p11.2. These results indicate that parent report measures can provide a useful perspective on behavioral expression. Sensory phenotyping, when combined with neurobiological and psychophysical methods, might have the potential to provide a better understanding of the sensory processing in ASD and in other NDD. En ligne : http://dx.doi.org/10.1186/s13229-020-00410-w Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=442

---

1 (1 - 2 / 2)