Age of walking and intellectual ability in autism spectrum disorder and other neurodevelopmental disorders: a population-based study / Alexandra HAVDAHL in Journal of Child Psychology and Psychiatry, 62-9 (September 2021)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 62-9 (September 2021) . - p.1070-1078 Titre : Age of walking and intellectual ability in autism spectrum disorder and other neurodevelopmental disorders: a population-based study Type de document : texte imprimé Auteurs : Alexandra HAVDAHL, Auteur ; Cristan FARMER, Auteur ; Synnve SCHJØLBERG, Auteur ; Anne-Siri ØYEN, Auteur ; PÃ¥l SUREN, Auteur ; Ted REICHBORN-KJENNERUD, Auteur ; Per MAGNUS, Auteur ; Michaeline BRESNAHAN, Auteur ; Mady HORNIG, Auteur ; Ezra SUSSER, Auteur ; W. Ian LIPKIN, Auteur ; Catherine LORD, Auteur ; Camilla STOLTENBERG, Auteur ; Audrey THURM, Auteur ; Somer L. BISHOP, Auteur Article en page(s) : p.1070-1078 Langues : Anglais (eng) Mots-clés : Autism Spectrum Disorder/epidemiology  Child  Cohort Studies  Humans  Intellectual Disability/epidemiology  Neurodevelopmental Disorders/epidemiology  Walking  Intellectual disability  MoBa  epidemiology  gross motor milestones  late walking  All profits from their research are donated to charity. The other authors report no  conflicts of interest. Index. décimale : PER Périodiques Résumé : BACKGROUND: Delayed walking is common in intellectual disability (ID) but may be less common when ID occurs with autism spectrum disorder (ASD). Previous studies examining this were limited by reliance on clinical samples and exclusion of children with severe motor deficits. OBJECTIVE: To examine in a population-based sample if age of walking is differentially related to intellectual ability in children with ASD versus other neurodevelopmental disorders (NDD). METHODS: Participants were from the nested Autism Birth Cohort Study of the Norwegian Mother, Father and Child Cohort Study (MoBa). Cox proportional hazards regression assessed if diagnosis (ASD n = 212 vs. NDD n = 354), continuous nonverbal IQ, and their interaction, were associated with continuous age of walking. RESULTS: The relationship between nonverbal IQ and age of walking was stronger for NDD than for ASD (Group × nonverbal IQ interaction, χ(2)  = 13.93, p = .0002). This interaction was characterized by a 21% decrease in the likelihood of walking onset at any given time during the observation period per 10-point decrease in nonverbal IQ (hazard ratio = 0.79, 95% CI: 0.78-0.85) in the NDD group compared to 8% (hazard ratio = 0.92, 95% CI: 0.86-0.98) in the ASD group. CONCLUSIONS: The finding that age of walking is less strongly related to low intellectual ability in children with ASD than in children without other NDDs supports the hypothesis that ID in ASD may result from heterogeneous developmental pathways. Late walking may be a useful stratification variable in etiological research focused on ASD and other NDDs. En ligne : http://dx.doi.org/10.1111/jcpp.13369 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=456 [article] Age of walking and intellectual ability in autism spectrum disorder and other neurodevelopmental disorders: a population-based study [texte imprimé] / Alexandra HAVDAHL, Auteur ; Cristan FARMER, Auteur ; Synnve SCHJØLBERG, Auteur ; Anne-Siri ØYEN, Auteur ; PÃ¥l SUREN, Auteur ; Ted REICHBORN-KJENNERUD, Auteur ; Per MAGNUS, Auteur ; Michaeline BRESNAHAN, Auteur ; Mady HORNIG, Auteur ; Ezra SUSSER, Auteur ; W. Ian LIPKIN, Auteur ; Catherine LORD, Auteur ; Camilla STOLTENBERG, Auteur ; Audrey THURM, Auteur ; Somer L. BISHOP, Auteur . - p.1070-1078. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 62-9 (September 2021) . - p.1070-1078 Mots-clés : Autism Spectrum Disorder/epidemiology  Child  Cohort Studies  Humans  Intellectual Disability/epidemiology  Neurodevelopmental Disorders/epidemiology  Walking  Intellectual disability  MoBa  epidemiology  gross motor milestones  late walking  All profits from their research are donated to charity. The other authors report no  conflicts of interest. Index. décimale : PER Périodiques Résumé : BACKGROUND: Delayed walking is common in intellectual disability (ID) but may be less common when ID occurs with autism spectrum disorder (ASD). Previous studies examining this were limited by reliance on clinical samples and exclusion of children with severe motor deficits. OBJECTIVE: To examine in a population-based sample if age of walking is differentially related to intellectual ability in children with ASD versus other neurodevelopmental disorders (NDD). METHODS: Participants were from the nested Autism Birth Cohort Study of the Norwegian Mother, Father and Child Cohort Study (MoBa). Cox proportional hazards regression assessed if diagnosis (ASD n = 212 vs. NDD n = 354), continuous nonverbal IQ, and their interaction, were associated with continuous age of walking. RESULTS: The relationship between nonverbal IQ and age of walking was stronger for NDD than for ASD (Group × nonverbal IQ interaction, χ(2)  = 13.93, p = .0002). This interaction was characterized by a 21% decrease in the likelihood of walking onset at any given time during the observation period per 10-point decrease in nonverbal IQ (hazard ratio = 0.79, 95% CI: 0.78-0.85) in the NDD group compared to 8% (hazard ratio = 0.92, 95% CI: 0.86-0.98) in the ASD group. CONCLUSIONS: The finding that age of walking is less strongly related to low intellectual ability in children with ASD than in children without other NDDs supports the hypothesis that ID in ASD may result from heterogeneous developmental pathways. Late walking may be a useful stratification variable in etiological research focused on ASD and other NDDs. En ligne : http://dx.doi.org/10.1111/jcpp.13369 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=456

Commentary: Objective aids for the assessment of ADHD – further clarification of what FDA approval for marketing means and why NEBA might help clinicians. A response to Arns et al. (2016) / Mark A. STEIN in Journal of Child Psychology and Psychiatry, 57-6 (June 2016)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 57-6 (June 2016) . - p.770-771 Titre : Commentary: Objective aids for the assessment of ADHD – further clarification of what FDA approval for marketing means and why NEBA might help clinicians. A response to Arns et al. (2016) Type de document : texte imprimé Auteurs : Mark A. STEIN, Auteur ; Steven M. SNYDER, Auteur ; Thomas A. RUGINO, Auteur ; Mady HORNIG, Auteur Article en page(s) : p.770-771 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : Neuropsychiatric EEG-Based ADHD Assessment Aid (NEBA) is an EEG-based device designed to aid in the diagnostic process for ADHD by identifying individuals less likely to have ADHD by virtue of a lower theta/beta ratio. In using NEBA as an example, the Arns et al. commentary misstates the purpose of NEBA, which is to widen the differential rather than to make the diagnosis. Arns et al. caution about missing an ADHD diagnosis, but fail to mention the impact of overdiagnosis. If we are to advance our knowledge of the etiology and pathophysiology of ADHD, as well as develop tailored treatments and ultimately improve outcomes for ADHD, then biomarkers and objective assessment aids such as NEBA are needed to improve and refine diagnostic accuracy beyond symptom description and clinical history. En ligne : http://dx.doi.org/10.1111/jcpp.12534 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=289 [article] Commentary: Objective aids for the assessment of ADHD – further clarification of what FDA approval for marketing means and why NEBA might help clinicians. A response to Arns et al. (2016) [texte imprimé] / Mark A. STEIN, Auteur ; Steven M. SNYDER, Auteur ; Thomas A. RUGINO, Auteur ; Mady HORNIG, Auteur . - p.770-771. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 57-6 (June 2016) . - p.770-771 Index. décimale : PER Périodiques Résumé : Neuropsychiatric EEG-Based ADHD Assessment Aid (NEBA) is an EEG-based device designed to aid in the diagnostic process for ADHD by identifying individuals less likely to have ADHD by virtue of a lower theta/beta ratio. In using NEBA as an example, the Arns et al. commentary misstates the purpose of NEBA, which is to widen the differential rather than to make the diagnosis. Arns et al. caution about missing an ADHD diagnosis, but fail to mention the impact of overdiagnosis. If we are to advance our knowledge of the etiology and pathophysiology of ADHD, as well as develop tailored treatments and ultimately improve outcomes for ADHD, then biomarkers and objective assessment aids such as NEBA are needed to improve and refine diagnostic accuracy beyond symptom description and clinical history. En ligne : http://dx.doi.org/10.1111/jcpp.12534 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=289

Prenatal and Postnatal Epigenetic Programming: Implications for GI, Immune, and Neuronal Function in Autism / Mostafa WALY in Autism Research and Treatment, (May 2012)  

Public ISBD [article]  inAutism Research and Treatment > (May 2012) . - 13 p. Titre : Prenatal and Postnatal Epigenetic Programming: Implications for GI, Immune, and Neuronal Function in Autism Type de document : texte imprimé Auteurs : Mostafa WALY, Auteur ; Mady HORNIG, Auteur ; Malav TRIVEDI, Auteur ; Nathaniel HODGSON, Auteur ; Radhika KINI, Auteur ; Akio OHTA, Auteur ; Richard DETH, Auteur Année de publication : 2012 Article en page(s) : 13 p. Langues : Anglais (eng) Mots-clés : Maladie gastro-intestinale Index. décimale : PER Périodiques Résumé : Although autism is first and foremost a disorder of the central nervous system, comorbid dysfunction of the gastrointestinal (GI) and immune systems is common, suggesting that all three systems may be affected by common molecular mechanisms. Substantial systemic deficits in the antioxidant glutathione and its precursor, cysteine, have been documented in autism in association with oxidative stress and impaired methylation. DNA and histone methylation provide epigenetic regulation of gene expression during prenatal and postnatal development. Prenatal epigenetic programming (PrEP) can be affected by the maternal metabolic and nutritional environment, whereas postnatal epigenetic programming (PEP) importantly depends upon nutritional support provided through the GI tract. Cysteine absorption from the GI tract is a crucial determinant of antioxidant capacity, and systemic deficits of glutathione and cysteine in autism are likely to reflect impaired cysteine absorption. Excitatory amino acid transporter 3 (EAAT3) provides cysteine uptake for GI epithelial, neuronal, and immune cells, and its activity is decreased during oxidative stress. Based upon these observations, we propose that neurodevelopmental, GI, and immune aspects of autism each reflect manifestations of inadequate antioxidant capacity, secondary to impaired cysteine uptake by the GI tract. Genetic and environmental factors that adversely affect antioxidant capacity can disrupt PrEP and/or PEP, increasing vulnerability to autism. En ligne : http://dx.doi.org/10.1155/2012/190930 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=179 [article] Prenatal and Postnatal Epigenetic Programming: Implications for GI, Immune, and Neuronal Function in Autism [texte imprimé] / Mostafa WALY, Auteur ; Mady HORNIG, Auteur ; Malav TRIVEDI, Auteur ; Nathaniel HODGSON, Auteur ; Radhika KINI, Auteur ; Akio OHTA, Auteur ; Richard DETH, Auteur . - 2012 . - 13 p. Langues : Anglais (eng) in Autism Research and Treatment > (May 2012) . - 13 p. Mots-clés : Maladie gastro-intestinale Index. décimale : PER Périodiques Résumé : Although autism is first and foremost a disorder of the central nervous system, comorbid dysfunction of the gastrointestinal (GI) and immune systems is common, suggesting that all three systems may be affected by common molecular mechanisms. Substantial systemic deficits in the antioxidant glutathione and its precursor, cysteine, have been documented in autism in association with oxidative stress and impaired methylation. DNA and histone methylation provide epigenetic regulation of gene expression during prenatal and postnatal development. Prenatal epigenetic programming (PrEP) can be affected by the maternal metabolic and nutritional environment, whereas postnatal epigenetic programming (PEP) importantly depends upon nutritional support provided through the GI tract. Cysteine absorption from the GI tract is a crucial determinant of antioxidant capacity, and systemic deficits of glutathione and cysteine in autism are likely to reflect impaired cysteine absorption. Excitatory amino acid transporter 3 (EAAT3) provides cysteine uptake for GI epithelial, neuronal, and immune cells, and its activity is decreased during oxidative stress. Based upon these observations, we propose that neurodevelopmental, GI, and immune aspects of autism each reflect manifestations of inadequate antioxidant capacity, secondary to impaired cysteine uptake by the GI tract. Genetic and environmental factors that adversely affect antioxidant capacity can disrupt PrEP and/or PEP, increasing vulnerability to autism. En ligne : http://dx.doi.org/10.1155/2012/190930 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=179

The influence of parental concern on the utility of autism diagnostic instruments / Alexandra HAVDAHL in Autism Research, 10-10 (October 2017)  

Public ISBD [article]  inAutism Research > 10-10 (October 2017) . - p.1672-1686 Titre : The influence of parental concern on the utility of autism diagnostic instruments Type de document : texte imprimé Auteurs : Alexandra HAVDAHL, Auteur ; Somer L. BISHOP, Auteur ; PÃ¥l SUREN, Auteur ; Anne-Siri ØYEN, Auteur ; Catherine LORD, Auteur ; Andrew PICKLES, Auteur ; Stephen VON TETZCHNER, Auteur ; Synnve SCHJØLBERG, Auteur ; Nina GUNNES, Auteur ; Mady HORNIG, Auteur ; W. Ian LIPKIN, Auteur ; Ezra SUSSER, Auteur ; Michaeline BRESNAHAN, Auteur ; Per MAGNUS, Auteur ; Nina STENBERG, Auteur ; Ted REICHBORN-KJENNERUD, Auteur ; Camilla STOLTENBERG, Auteur Article en page(s) : p.1672-1686 Langues : Anglais (eng) Mots-clés : Autism Diagnostic Interview-Revised  Autism Diagnostic Observation Schedule  early diagnosis  screening Index. décimale : PER Périodiques Résumé : The parental report-based Autism Diagnostic Interview-Revised (ADI-R) and the clinician observation-based Autism Diagnostic Observation Schedule (ADOS) have been validated primarily in U.S. clinics specialized in autism spectrum disorder (ASD), in which most children are referred by their parents because of ASD concern. This study assessed diagnostic agreement of the ADOS-2 and ADI-R toddler algorithms in a more broadly based sample of 679 toddlers (age 35–47 months) from the Norwegian Mother and Child Cohort. We also examined whether parental concern about ASD influenced instrument performance, comparing toddlers identified based on parental ASD concern (n = 48) and parent-reported signs of developmental problems (screening) without a specific concern about ASD (n = 400). The ADOS cutoffs showed consistently well-balanced sensitivity and specificity. The ADI-R cutoffs demonstrated good specificity, but reduced sensitivity, missing 43% of toddlers whose parents were not specifically concerned about ASD. The ADI-R and ADOS dimensional scores agreed well with clinical diagnoses (area under the curve ≥ 0.85), contributing additively to their prediction. On the ADI-R, different cutoffs were needed according to presence or absence of parental ASD concern, in order to achieve comparable balance of sensitivity and specificity. These results highlight the importance of taking parental concern about ASD into account when interpreting scores from parental report-based instruments such as the ADI-R. While the ADOS cutoffs performed consistently well, the additive contributions of ADI-R and ADOS scores to the prediction of ASD diagnosis underscore the value of combining instruments based on parent accounts and clinician observation in evaluation of ASD. Autism Res 2017, 10: 1672–1686. © 2017 International Society for Autism Research, Wiley Periodicals, Inc. En ligne : http://dx.doi.org/10.1002/aur.1817 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=322 [article] The influence of parental concern on the utility of autism diagnostic instruments [texte imprimé] / Alexandra HAVDAHL, Auteur ; Somer L. BISHOP, Auteur ; PÃ¥l SUREN, Auteur ; Anne-Siri ØYEN, Auteur ; Catherine LORD, Auteur ; Andrew PICKLES, Auteur ; Stephen VON TETZCHNER, Auteur ; Synnve SCHJØLBERG, Auteur ; Nina GUNNES, Auteur ; Mady HORNIG, Auteur ; W. Ian LIPKIN, Auteur ; Ezra SUSSER, Auteur ; Michaeline BRESNAHAN, Auteur ; Per MAGNUS, Auteur ; Nina STENBERG, Auteur ; Ted REICHBORN-KJENNERUD, Auteur ; Camilla STOLTENBERG, Auteur . - p.1672-1686. Langues : Anglais (eng) in Autism Research > 10-10 (October 2017) . - p.1672-1686 Mots-clés : Autism Diagnostic Interview-Revised  Autism Diagnostic Observation Schedule  early diagnosis  screening Index. décimale : PER Périodiques Résumé : The parental report-based Autism Diagnostic Interview-Revised (ADI-R) and the clinician observation-based Autism Diagnostic Observation Schedule (ADOS) have been validated primarily in U.S. clinics specialized in autism spectrum disorder (ASD), in which most children are referred by their parents because of ASD concern. This study assessed diagnostic agreement of the ADOS-2 and ADI-R toddler algorithms in a more broadly based sample of 679 toddlers (age 35–47 months) from the Norwegian Mother and Child Cohort. We also examined whether parental concern about ASD influenced instrument performance, comparing toddlers identified based on parental ASD concern (n = 48) and parent-reported signs of developmental problems (screening) without a specific concern about ASD (n = 400). The ADOS cutoffs showed consistently well-balanced sensitivity and specificity. The ADI-R cutoffs demonstrated good specificity, but reduced sensitivity, missing 43% of toddlers whose parents were not specifically concerned about ASD. The ADI-R and ADOS dimensional scores agreed well with clinical diagnoses (area under the curve ≥ 0.85), contributing additively to their prediction. On the ADI-R, different cutoffs were needed according to presence or absence of parental ASD concern, in order to achieve comparable balance of sensitivity and specificity. These results highlight the importance of taking parental concern about ASD into account when interpreting scores from parental report-based instruments such as the ADI-R. While the ADOS cutoffs performed consistently well, the additive contributions of ADI-R and ADOS scores to the prediction of ASD diagnosis underscore the value of combining instruments based on parent accounts and clinician observation in evaluation of ASD. Autism Res 2017, 10: 1672–1686. © 2017 International Society for Autism Research, Wiley Periodicals, Inc. En ligne : http://dx.doi.org/10.1002/aur.1817 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=322

The International Collaboration for Autism Registry Epidemiology (iCARE): Multinational Registry-Based Investigations of Autism Risk Factors and Trends / Diana SCHENDEL in Journal of Autism and Developmental Disorders, 43-11 (November 2013)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 43-11 (November 2013) . - p.2650-2663 Titre : The International Collaboration for Autism Registry Epidemiology (iCARE): Multinational Registry-Based Investigations of Autism Risk Factors and Trends Type de document : texte imprimé Auteurs : Diana SCHENDEL, Auteur ; Michaeline BRESNAHAN, Auteur ; Kim W. CARTER, Auteur ; Richard W. FRANCIS, Auteur ; Mika GISSLER, Auteur ; Therese K. GRONBORG, Auteur ; Raz GROSS, Auteur ; Nina GUNNES, Auteur ; Mady HORNIG, Auteur ; Christina M. HULTMAN, Auteur ; Amanda LANGRIDGE, Auteur ; Marlene B. LAURITSEN, Auteur ; Helen LEONARD, Auteur ; Erik T. PARNER, Auteur ; Abraham REICHENBERG, Auteur ; Sven SANDIN, Auteur ; Andre SOURANDER, Auteur ; Camilla STOLTENBERG, Auteur ; Auli SUOMINEN, Auteur ; PÃ¥l SUREN, Auteur ; Ezra SUSSER, Auteur Article en page(s) : p.2650-2663 Langues : Anglais (eng) Mots-clés : Autism  Epidemiology  Study methods  Risk factors  Multinational Index. décimale : PER Périodiques Résumé : The International Collaboration for Autism Registry Epidemiology (iCARE) is the first multinational research consortium (Australia, Denmark, Finland, Israel, Norway, Sweden, USA) to promote research in autism geographical and temporal heterogeneity, phenotype, family and life course patterns, and etiology. iCARE devised solutions to challenges in multinational collaboration concerning data access security, confidentiality and management. Data are obtained by integrating existing national or state-wide, population-based, individual-level data systems and undergo rigorous harmonization and quality control processes. Analyses are performed using database federation via a computational infrastructure with a secure, web-based, interface. iCARE provides a unique, unprecedented resource in autism research that will significantly enhance the ability to detect environmental and genetic contributions to the causes and life course of autism. En ligne : http://dx.doi.org/10.1007/s10803-013-1815-x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=217 [article] The International Collaboration for Autism Registry Epidemiology (iCARE): Multinational Registry-Based Investigations of Autism Risk Factors and Trends [texte imprimé] / Diana SCHENDEL, Auteur ; Michaeline BRESNAHAN, Auteur ; Kim W. CARTER, Auteur ; Richard W. FRANCIS, Auteur ; Mika GISSLER, Auteur ; Therese K. GRONBORG, Auteur ; Raz GROSS, Auteur ; Nina GUNNES, Auteur ; Mady HORNIG, Auteur ; Christina M. HULTMAN, Auteur ; Amanda LANGRIDGE, Auteur ; Marlene B. LAURITSEN, Auteur ; Helen LEONARD, Auteur ; Erik T. PARNER, Auteur ; Abraham REICHENBERG, Auteur ; Sven SANDIN, Auteur ; Andre SOURANDER, Auteur ; Camilla STOLTENBERG, Auteur ; Auli SUOMINEN, Auteur ; PÃ¥l SUREN, Auteur ; Ezra SUSSER, Auteur . - p.2650-2663. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 43-11 (November 2013) . - p.2650-2663 Mots-clés : Autism  Epidemiology  Study methods  Risk factors  Multinational Index. décimale : PER Périodiques Résumé : The International Collaboration for Autism Registry Epidemiology (iCARE) is the first multinational research consortium (Australia, Denmark, Finland, Israel, Norway, Sweden, USA) to promote research in autism geographical and temporal heterogeneity, phenotype, family and life course patterns, and etiology. iCARE devised solutions to challenges in multinational collaboration concerning data access security, confidentiality and management. Data are obtained by integrating existing national or state-wide, population-based, individual-level data systems and undergo rigorous harmonization and quality control processes. Analyses are performed using database federation via a computational infrastructure with a secure, web-based, interface. iCARE provides a unique, unprecedented resource in autism research that will significantly enhance the ability to detect environmental and genetic contributions to the causes and life course of autism. En ligne : http://dx.doi.org/10.1007/s10803-013-1815-x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=217

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