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Quantitative Gait Analysis in Duplication 15q Syndrome and Nonsyndromic ASD / Rujuta B. WILSON in Autism Research, 13-7 (July 2020)
[article]
Titre : Quantitative Gait Analysis in Duplication 15q Syndrome and Nonsyndromic ASD Type de document : Texte imprimé et/ou numérique Auteurs : Rujuta B. WILSON, Auteur ; David ELASHOFF, Auteur ; Arnaud GOUELLE, Auteur ; Beth A. SMITH, Auteur ; Andrew M. WILSON, Auteur ; Abigail DICKINSON, Auteur ; Tabitha SAFARI, Auteur ; Carly HYDE, Auteur ; Shafali S. JESTE, Auteur Article en page(s) : p.1102-1110 Langues : Anglais (eng) Mots-clés : autism spectrum disorder duplication 15q syndrome gait function genetic syndrome motor impairments quantitative gait analysis Index. décimale : PER Périodiques Résumé : Motor impairments occur frequently in genetic syndromes highly penetrant for autism spectrum disorder (syndromic ASD) and in individuals with ASD without a genetic diagnosis (nonsyndromic ASD). In particular, abnormalities in gait in ASD have been linked to language delay, ASD severity, and likelihood of having a genetic disorder. Quantitative measures of motor function can improve our ability to evaluate motor differences in individuals with syndromic and nonsyndromic ASD with varying levels of intellectual disability and adaptive skills. To evaluate this methodology, we chose to use quantitative gait analysis to study duplication 15q syndrome (dup15q syndrome), a genetic disorder highly penetrant for motor delays, intellectual disability, and ASD. We evaluated quantitative gait variables in individuals with dup15q syndrome (n = 39) and nonsyndromic ASD (n = 21) and compared these data to a reference typically developing cohort. We found a gait pattern of slow pace, poor postural control, and large gait variability in dup15q syndrome. Our findings improve characterization of motor function in dup15q syndrome and nonsyndromic ASD. Quantitative gait analysis can be used as a translational method and can improve our identification of clinical endpoints to be used in treatment trials for these syndromes. Autism Res 2020, 13: 1102-1110. © 2020 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: Motor impairments, particularly abnormalities in walking, occur frequently in genetic syndromes highly penetrant for autism spectrum disorder (syndromic ASD). Here, using quantitative gait analysis, we find that individuals with duplication 15q syndrome have an atypical gait pattern that differentiates them from typically developing and nonsyndromic ASD individuals. Our findings improve motor characterization in dup15q syndrome and nonsyndromic ASD. En ligne : http://dx.doi.org/10.1002/aur.2298 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=429
in Autism Research > 13-7 (July 2020) . - p.1102-1110[article] Quantitative Gait Analysis in Duplication 15q Syndrome and Nonsyndromic ASD [Texte imprimé et/ou numérique] / Rujuta B. WILSON, Auteur ; David ELASHOFF, Auteur ; Arnaud GOUELLE, Auteur ; Beth A. SMITH, Auteur ; Andrew M. WILSON, Auteur ; Abigail DICKINSON, Auteur ; Tabitha SAFARI, Auteur ; Carly HYDE, Auteur ; Shafali S. JESTE, Auteur . - p.1102-1110.
Langues : Anglais (eng)
in Autism Research > 13-7 (July 2020) . - p.1102-1110
Mots-clés : autism spectrum disorder duplication 15q syndrome gait function genetic syndrome motor impairments quantitative gait analysis Index. décimale : PER Périodiques Résumé : Motor impairments occur frequently in genetic syndromes highly penetrant for autism spectrum disorder (syndromic ASD) and in individuals with ASD without a genetic diagnosis (nonsyndromic ASD). In particular, abnormalities in gait in ASD have been linked to language delay, ASD severity, and likelihood of having a genetic disorder. Quantitative measures of motor function can improve our ability to evaluate motor differences in individuals with syndromic and nonsyndromic ASD with varying levels of intellectual disability and adaptive skills. To evaluate this methodology, we chose to use quantitative gait analysis to study duplication 15q syndrome (dup15q syndrome), a genetic disorder highly penetrant for motor delays, intellectual disability, and ASD. We evaluated quantitative gait variables in individuals with dup15q syndrome (n = 39) and nonsyndromic ASD (n = 21) and compared these data to a reference typically developing cohort. We found a gait pattern of slow pace, poor postural control, and large gait variability in dup15q syndrome. Our findings improve characterization of motor function in dup15q syndrome and nonsyndromic ASD. Quantitative gait analysis can be used as a translational method and can improve our identification of clinical endpoints to be used in treatment trials for these syndromes. Autism Res 2020, 13: 1102-1110. © 2020 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: Motor impairments, particularly abnormalities in walking, occur frequently in genetic syndromes highly penetrant for autism spectrum disorder (syndromic ASD). Here, using quantitative gait analysis, we find that individuals with duplication 15q syndrome have an atypical gait pattern that differentiates them from typically developing and nonsyndromic ASD individuals. Our findings improve motor characterization in dup15q syndrome and nonsyndromic ASD. En ligne : http://dx.doi.org/10.1002/aur.2298 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=429 Identification of a distinct developmental and behavioral profile in children with Dup15q syndrome / C. DISTEFANO in Journal of Neurodevelopmental Disorders, 8-1 (December 2016)
[article]
Titre : Identification of a distinct developmental and behavioral profile in children with Dup15q syndrome Type de document : Texte imprimé et/ou numérique Auteurs : C. DISTEFANO, Auteur ; A. GULSRUD, Auteur ; S. HUBERTY, Auteur ; Connie KASARI, Auteur ; E. COOK, Auteur ; L. T. REITER, Auteur ; R. THIBERT, Auteur ; S. S. JESTE, Auteur Article en page(s) : p.19 Langues : Anglais (eng) Mots-clés : Adaptive functioning Autism spectrum disorder Duplication 15q syndrome Intellectual disability Social communication Index. décimale : PER Périodiques Résumé : BACKGROUND: One of the most common genetic variants associated with autism spectrum disorder (ASD) are duplications of chromosome 15q11.2-q13.1 (Dup15q syndrome). To identify distinctive developmental and behavioral features in Dup15q syndrome, we examined the social communication, adaptive, and cognitive skills in clinic-referred subjects and compared the characteristics of children with Dup15q syndrome to age/IQ-matched children with non-syndromic ASD. Behavior and development were also analyzed within the Dup15q group for differences related to copy number or epilepsy. METHODS: Participants included 13 children with Dup15q syndrome and 13 children with non-syndromic ASD, matched on chronological and mental age, ages 22 months-12 years. In the Dup15q group, ten participants had isodicentric and three had interstitial duplications. Four children had active epilepsy (all isodicentric). Participants were assessed for verbal and non-verbal cognition, ASD characteristics based on the Autism Diagnostic Observation Schedule (ADOS), and adaptive function based on the Vineland Adaptive Behavior Scales (VABS). Group comparisons were performed between Dup15q and ASD participants, as well as within the Dup15q group based on duplication type and epilepsy status. RESULTS: All children with Dup15q syndrome met the criteria for ASD; ASD severity scores were significantly lower than children in the non-syndromic ASD group. ADOS profiles demonstrated a relative strength in items related to social interest. Children with Dup15q syndrome also demonstrated significantly more impairment in motor and daily living skills. Within the Dup15q group, children with epilepsy demonstrated significantly lower cognitive and adaptive function than those without epilepsy. CONCLUSIONS: The relative strength observed in social interest and responsiveness in the context of impaired motor skills represents an important avenue for intervention, including aggressive treatment of epilepsy, early and consistent focus on motor skills, and intervention targeting joint attention and language within a play context, in order to build on social interest to further develop social communication abilities. Longitudinal research beginning in early development will elucidate the temporal relationships between developmental domains and neurological comorbidities in these children at high risk for neurodevelopmental disorders. En ligne : http://dx.doi.org/10.1186/s11689-016-9152-y Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=348
in Journal of Neurodevelopmental Disorders > 8-1 (December 2016) . - p.19[article] Identification of a distinct developmental and behavioral profile in children with Dup15q syndrome [Texte imprimé et/ou numérique] / C. DISTEFANO, Auteur ; A. GULSRUD, Auteur ; S. HUBERTY, Auteur ; Connie KASARI, Auteur ; E. COOK, Auteur ; L. T. REITER, Auteur ; R. THIBERT, Auteur ; S. S. JESTE, Auteur . - p.19.
Langues : Anglais (eng)
in Journal of Neurodevelopmental Disorders > 8-1 (December 2016) . - p.19
Mots-clés : Adaptive functioning Autism spectrum disorder Duplication 15q syndrome Intellectual disability Social communication Index. décimale : PER Périodiques Résumé : BACKGROUND: One of the most common genetic variants associated with autism spectrum disorder (ASD) are duplications of chromosome 15q11.2-q13.1 (Dup15q syndrome). To identify distinctive developmental and behavioral features in Dup15q syndrome, we examined the social communication, adaptive, and cognitive skills in clinic-referred subjects and compared the characteristics of children with Dup15q syndrome to age/IQ-matched children with non-syndromic ASD. Behavior and development were also analyzed within the Dup15q group for differences related to copy number or epilepsy. METHODS: Participants included 13 children with Dup15q syndrome and 13 children with non-syndromic ASD, matched on chronological and mental age, ages 22 months-12 years. In the Dup15q group, ten participants had isodicentric and three had interstitial duplications. Four children had active epilepsy (all isodicentric). Participants were assessed for verbal and non-verbal cognition, ASD characteristics based on the Autism Diagnostic Observation Schedule (ADOS), and adaptive function based on the Vineland Adaptive Behavior Scales (VABS). Group comparisons were performed between Dup15q and ASD participants, as well as within the Dup15q group based on duplication type and epilepsy status. RESULTS: All children with Dup15q syndrome met the criteria for ASD; ASD severity scores were significantly lower than children in the non-syndromic ASD group. ADOS profiles demonstrated a relative strength in items related to social interest. Children with Dup15q syndrome also demonstrated significantly more impairment in motor and daily living skills. Within the Dup15q group, children with epilepsy demonstrated significantly lower cognitive and adaptive function than those without epilepsy. CONCLUSIONS: The relative strength observed in social interest and responsiveness in the context of impaired motor skills represents an important avenue for intervention, including aggressive treatment of epilepsy, early and consistent focus on motor skills, and intervention targeting joint attention and language within a play context, in order to build on social interest to further develop social communication abilities. Longitudinal research beginning in early development will elucidate the temporal relationships between developmental domains and neurological comorbidities in these children at high risk for neurodevelopmental disorders. En ligne : http://dx.doi.org/10.1186/s11689-016-9152-y Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=348