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A Prospective Ultrasound Study of Prenatal Growth in Infant Siblings of Children With Autism / Lisa M. UNWIN in Autism Research, 9-2 (February 2016)
[article]
Titre : A Prospective Ultrasound Study of Prenatal Growth in Infant Siblings of Children With Autism Type de document : Texte imprimé et/ou numérique Auteurs : Lisa M. UNWIN, Auteur ; Murray T. MAYBERY, Auteur ; Anthony MURPHY, Auteur ; Wendy LILJE, Auteur ; Michelle BELLESINI, Auteur ; Anna M. HUNT, Auteur ; Joanna GRANICH, Auteur ; Peter JACOBY, Auteur ; Cheryl DISSANAYAKE, Auteur ; Craig E. PENNELL, Auteur ; Martha HICKEY, Auteur ; Andrew J. O. WHITEHOUSE, Auteur Article en page(s) : p.210-216 Langues : Anglais (eng) Mots-clés : infants pediatrics developmental psychology prenatal ultrasound Index. décimale : PER Périodiques Résumé : Numerous studies have observed that a proportion of infants later diagnosed with autism spectrum disorder (ASD) experience accelerated head growth during the first years of life. An emerging methodology for examining the developmental trajectory prior to a diagnosis of ASD is to investigate siblings of affected individuals. The current study is the first prospective investigation of fetal growth in siblings of children with ASD. Two groups of pregnant women were recruited as part of the PRegnancy Investigation of Siblings and Mothers of children with autism cohort in Perth, Western Australia. The “high risk” group (n?=?23) comprised pregnant women who have an existing child with a diagnosis of ASD and the “low risk” group (n?=?36) comprised pregnant mothers who have an existing child who has developed typically. Prenatal ultrasounds were procured at multiple time-points throughout the second- and third-trimesters, enabling an examination of growth trajectories. Growth measurements were then compared for the high- and low-risk fetuses. Mixed linear regression models identified no significant differences between the high- and low-risk fetuses in the rate of prenatal head and body growth throughout the second- and third-trimester (all P-values >0.05). Similarly, there were no significant differences observed when comparing high and low risk groups on a ratio of head circumference relative to body size (??=??0.019, P = 0.75). Future studies may consider looking beyond the macro architecture of the prenatal brain and examine the growth of brain subregions that have been implicated in the presentation of ASD symptoms. En ligne : http://dx.doi.org/10.1002/aur.1518 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=282
in Autism Research > 9-2 (February 2016) . - p.210-216[article] A Prospective Ultrasound Study of Prenatal Growth in Infant Siblings of Children With Autism [Texte imprimé et/ou numérique] / Lisa M. UNWIN, Auteur ; Murray T. MAYBERY, Auteur ; Anthony MURPHY, Auteur ; Wendy LILJE, Auteur ; Michelle BELLESINI, Auteur ; Anna M. HUNT, Auteur ; Joanna GRANICH, Auteur ; Peter JACOBY, Auteur ; Cheryl DISSANAYAKE, Auteur ; Craig E. PENNELL, Auteur ; Martha HICKEY, Auteur ; Andrew J. O. WHITEHOUSE, Auteur . - p.210-216.
Langues : Anglais (eng)
in Autism Research > 9-2 (February 2016) . - p.210-216
Mots-clés : infants pediatrics developmental psychology prenatal ultrasound Index. décimale : PER Périodiques Résumé : Numerous studies have observed that a proportion of infants later diagnosed with autism spectrum disorder (ASD) experience accelerated head growth during the first years of life. An emerging methodology for examining the developmental trajectory prior to a diagnosis of ASD is to investigate siblings of affected individuals. The current study is the first prospective investigation of fetal growth in siblings of children with ASD. Two groups of pregnant women were recruited as part of the PRegnancy Investigation of Siblings and Mothers of children with autism cohort in Perth, Western Australia. The “high risk” group (n?=?23) comprised pregnant women who have an existing child with a diagnosis of ASD and the “low risk” group (n?=?36) comprised pregnant mothers who have an existing child who has developed typically. Prenatal ultrasounds were procured at multiple time-points throughout the second- and third-trimesters, enabling an examination of growth trajectories. Growth measurements were then compared for the high- and low-risk fetuses. Mixed linear regression models identified no significant differences between the high- and low-risk fetuses in the rate of prenatal head and body growth throughout the second- and third-trimester (all P-values >0.05). Similarly, there were no significant differences observed when comparing high and low risk groups on a ratio of head circumference relative to body size (??=??0.019, P = 0.75). Future studies may consider looking beyond the macro architecture of the prenatal brain and examine the growth of brain subregions that have been implicated in the presentation of ASD symptoms. En ligne : http://dx.doi.org/10.1002/aur.1518 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=282 Severity of ASD symptoms and their correlation with the presence of copy number variations and exposure to first trimester ultrasound / Sara Jane WEBB in Autism Research, 10-3 (March 2017)
[article]
Titre : Severity of ASD symptoms and their correlation with the presence of copy number variations and exposure to first trimester ultrasound Type de document : Texte imprimé et/ou numérique Auteurs : Sara Jane WEBB, Auteur ; Michelle M. GARRISON, Auteur ; Raphael BERNIER, Auteur ; Abbi M. MCCLINTIC, Auteur ; Bryan H. KING, Auteur ; Pierre D. MOURAD, Auteur Article en page(s) : p.472-484 Langues : Anglais (eng) Mots-clés : epidemiology genetics environmental influences ASD severity ultrasound Index. décimale : PER Périodiques Résumé : Current research suggests that incidence and heterogeneity of autism spectrum disorder (ASD) symptoms may arise through a variety of exogenous and/or endogenous factors. While subject to routine clinical practice and generally considered safe, there exists speculation, though no human data, that diagnostic ultrasound may also contribute to ASD severity, supported by experimental evidence that exposure to ultrasound early in gestation could perturb brain development and alter behavior. Here we explored a modified triple hit hypothesis [Williams & Casanova, ] to assay for a possible relationship between the severity of ASD symptoms and (1) ultrasound exposure (2) during the first trimester of pregnancy in fetuses with a (3) genetic predisposition to ASD. We did so using retrospective analysis of data from the SSC (Simon's Simplex Collection) autism genetic repository funded by the Simons Foundation Autism Research Initiative. We found that male children with ASD, copy number variations (CNVs), and exposure to first trimester ultrasound had significantly decreased non-verbal IQ and increased repetitive behaviors relative to male children with ASD, with CNVs, and no ultrasound. These data suggest that heterogeneity in ASD symptoms may result, at least in part, from exposure to diagnostic ultrasound during early prenatal development of children with specific genetic vulnerabilities. These results also add weight to on-going concerns expressed by the FDA about non-medical use of diagnostic ultrasound during pregnancy. En ligne : http://dx.doi.org/10.1002/aur.1690 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=304
in Autism Research > 10-3 (March 2017) . - p.472-484[article] Severity of ASD symptoms and their correlation with the presence of copy number variations and exposure to first trimester ultrasound [Texte imprimé et/ou numérique] / Sara Jane WEBB, Auteur ; Michelle M. GARRISON, Auteur ; Raphael BERNIER, Auteur ; Abbi M. MCCLINTIC, Auteur ; Bryan H. KING, Auteur ; Pierre D. MOURAD, Auteur . - p.472-484.
Langues : Anglais (eng)
in Autism Research > 10-3 (March 2017) . - p.472-484
Mots-clés : epidemiology genetics environmental influences ASD severity ultrasound Index. décimale : PER Périodiques Résumé : Current research suggests that incidence and heterogeneity of autism spectrum disorder (ASD) symptoms may arise through a variety of exogenous and/or endogenous factors. While subject to routine clinical practice and generally considered safe, there exists speculation, though no human data, that diagnostic ultrasound may also contribute to ASD severity, supported by experimental evidence that exposure to ultrasound early in gestation could perturb brain development and alter behavior. Here we explored a modified triple hit hypothesis [Williams & Casanova, ] to assay for a possible relationship between the severity of ASD symptoms and (1) ultrasound exposure (2) during the first trimester of pregnancy in fetuses with a (3) genetic predisposition to ASD. We did so using retrospective analysis of data from the SSC (Simon's Simplex Collection) autism genetic repository funded by the Simons Foundation Autism Research Initiative. We found that male children with ASD, copy number variations (CNVs), and exposure to first trimester ultrasound had significantly decreased non-verbal IQ and increased repetitive behaviors relative to male children with ASD, with CNVs, and no ultrasound. These data suggest that heterogeneity in ASD symptoms may result, at least in part, from exposure to diagnostic ultrasound during early prenatal development of children with specific genetic vulnerabilities. These results also add weight to on-going concerns expressed by the FDA about non-medical use of diagnostic ultrasound during pregnancy. En ligne : http://dx.doi.org/10.1002/aur.1690 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=304 Autism is a prenatal disorder: Evidence from late gestation brain overgrowth / Frédérique BONNET-BRILHAULT in Autism Research, 11-12 (December 2018)
[article]
Titre : Autism is a prenatal disorder: Evidence from late gestation brain overgrowth Type de document : Texte imprimé et/ou numérique Auteurs : Frédérique BONNET-BRILHAULT, Auteur ; T. A. RAJERISON, Auteur ; C. PAILLET, Auteur ; M. GUIMARD-BRUNAULT, Auteur ; A. SABY, Auteur ; L. PONSON, Auteur ; G. TRIPI, Auteur ; J. MALVY, Auteur ; S. ROUX, Auteur Article en page(s) : p.1635-1642 Langues : Anglais (eng) Mots-clés : brain growth head circumference neurodevelopmental disorder ultrasound Index. décimale : PER Périodiques Résumé : This retrospective study aimed to specify the critical period for atypical brain development in individuals with autism spectrum disorder (ASD) using prenatal and postnatal head growth parameters. The sample consisted of 80 Caucasian, unrelated, idiopathic patients with ASD born after 1995. Fetal ultrasound parameters (head circumference [HC], abdominal circumference, and femur length) were obtained during the second and third trimesters of gestation. HC at birth and postnatal parameters at 12 and 24 months of age were also collected. Head overgrowth, assessed by HC, was highlighted during the second (20-26 weeks of amenorrhea) and third (28-36 weeks of amenorrhea) trimesters. Normal growth of body fetal parameters indicated that head overgrowth was not because of overall body overgrowth. Moreover, postnatal results replicated previously and reported head overgrowth. A critical time window for atypical brain development in autism is hypothesized to begin from the 22nd week of amenorrhea. This period is critical for cortical lamination and glial activation. A pathophysiological cascade is suggested with interactions between candidate genes and environmental factors. Autism Research 2018, 11: 1635-1642. (c) 2018 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: It is now widely acknowledged in the scientific community, that autism is a neurodevelopmental disorder. Recent evidence from animal and pathological studies has implicated the in utero period. However, the precise time of onset of abnormal brain development remains unknown. This retrospective study reports novel findings, identifying an atypical head growth trajectory in children with autism, during the in utero period (after the 22nd week of amenorrhea). In the same children, postnatal head overgrowth was also observed. Late gestation is identified as a critical period for atypical brain development underlying autism symptoms. En ligne : http://dx.doi.org/10.1002/aur.2036 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=372
in Autism Research > 11-12 (December 2018) . - p.1635-1642[article] Autism is a prenatal disorder: Evidence from late gestation brain overgrowth [Texte imprimé et/ou numérique] / Frédérique BONNET-BRILHAULT, Auteur ; T. A. RAJERISON, Auteur ; C. PAILLET, Auteur ; M. GUIMARD-BRUNAULT, Auteur ; A. SABY, Auteur ; L. PONSON, Auteur ; G. TRIPI, Auteur ; J. MALVY, Auteur ; S. ROUX, Auteur . - p.1635-1642.
Langues : Anglais (eng)
in Autism Research > 11-12 (December 2018) . - p.1635-1642
Mots-clés : brain growth head circumference neurodevelopmental disorder ultrasound Index. décimale : PER Périodiques Résumé : This retrospective study aimed to specify the critical period for atypical brain development in individuals with autism spectrum disorder (ASD) using prenatal and postnatal head growth parameters. The sample consisted of 80 Caucasian, unrelated, idiopathic patients with ASD born after 1995. Fetal ultrasound parameters (head circumference [HC], abdominal circumference, and femur length) were obtained during the second and third trimesters of gestation. HC at birth and postnatal parameters at 12 and 24 months of age were also collected. Head overgrowth, assessed by HC, was highlighted during the second (20-26 weeks of amenorrhea) and third (28-36 weeks of amenorrhea) trimesters. Normal growth of body fetal parameters indicated that head overgrowth was not because of overall body overgrowth. Moreover, postnatal results replicated previously and reported head overgrowth. A critical time window for atypical brain development in autism is hypothesized to begin from the 22nd week of amenorrhea. This period is critical for cortical lamination and glial activation. A pathophysiological cascade is suggested with interactions between candidate genes and environmental factors. Autism Research 2018, 11: 1635-1642. (c) 2018 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: It is now widely acknowledged in the scientific community, that autism is a neurodevelopmental disorder. Recent evidence from animal and pathological studies has implicated the in utero period. However, the precise time of onset of abnormal brain development remains unknown. This retrospective study reports novel findings, identifying an atypical head growth trajectory in children with autism, during the in utero period (after the 22nd week of amenorrhea). In the same children, postnatal head overgrowth was also observed. Late gestation is identified as a critical period for atypical brain development underlying autism symptoms. En ligne : http://dx.doi.org/10.1002/aur.2036 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=372 Brief Report: A Preliminary Study of Fetal Head Circumference Growth in Autism Spectrum Disorder / Andrew J. O. WHITEHOUSE in Journal of Autism and Developmental Disorders, 41-1 (January 2011)
[article]
Titre : Brief Report: A Preliminary Study of Fetal Head Circumference Growth in Autism Spectrum Disorder Type de document : Texte imprimé et/ou numérique Auteurs : Andrew J. O. WHITEHOUSE, Auteur ; Martha HICKEY, Auteur ; Fiona J. STANLEY, Auteur ; John P. NEWNHAM, Auteur ; Craig E. PENNELL, Auteur Année de publication : 2011 Article en page(s) : p.122-129 Langues : Anglais (eng) Mots-clés : Autism spectrum disorder Brain growth Head circumference Fetus Ultrasound Index. décimale : PER Périodiques Résumé : Fetal head circumference (HC) growth was examined prospectively in children with autism spectrum disorder (ASD). ASD participants (N = 14) were each matched with four control participants (N = 56) on a range of parameters known to influence fetal growth. HC was measured using ultrasonography at approximately 18 weeks gestation and again at birth using a paper tape-measure. Overall body size was indexed by fetal femur-length and birth length. There was no between-groups difference in head circumference at either time-point. While a small number of children with ASD had disproportionately large head circumference relative to body size at both time-points, the between-groups difference did not reach statistical significance in this small sample. These preliminary findings suggest that further investigation of fetal growth in ASD is warranted. En ligne : http://dx.doi.org/10.1007/s10803-010-1019-6 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=114
in Journal of Autism and Developmental Disorders > 41-1 (January 2011) . - p.122-129[article] Brief Report: A Preliminary Study of Fetal Head Circumference Growth in Autism Spectrum Disorder [Texte imprimé et/ou numérique] / Andrew J. O. WHITEHOUSE, Auteur ; Martha HICKEY, Auteur ; Fiona J. STANLEY, Auteur ; John P. NEWNHAM, Auteur ; Craig E. PENNELL, Auteur . - 2011 . - p.122-129.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 41-1 (January 2011) . - p.122-129
Mots-clés : Autism spectrum disorder Brain growth Head circumference Fetus Ultrasound Index. décimale : PER Périodiques Résumé : Fetal head circumference (HC) growth was examined prospectively in children with autism spectrum disorder (ASD). ASD participants (N = 14) were each matched with four control participants (N = 56) on a range of parameters known to influence fetal growth. HC was measured using ultrasonography at approximately 18 weeks gestation and again at birth using a paper tape-measure. Overall body size was indexed by fetal femur-length and birth length. There was no between-groups difference in head circumference at either time-point. While a small number of children with ASD had disproportionately large head circumference relative to body size at both time-points, the between-groups difference did not reach statistical significance in this small sample. These preliminary findings suggest that further investigation of fetal growth in ASD is warranted. En ligne : http://dx.doi.org/10.1007/s10803-010-1019-6 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=114 A prospective study of fetal head growth, autistic traits and autism spectrum disorder / Laura M. E. BLANKEN in Autism Research, 11-4 (April 2018)
[article]
Titre : A prospective study of fetal head growth, autistic traits and autism spectrum disorder Type de document : Texte imprimé et/ou numérique Auteurs : Laura M. E. BLANKEN, Auteur ; A. DASS, Auteur ; Gail A. ALVARES, Auteur ; J. VAN DER ENDE, Auteur ; Nikita K. SCHOEMAKER, Auteur ; H. EL MARROUN, Auteur ; M. HICKEY, Auteur ; C. PENNELL, Auteur ; S. WHITE, Auteur ; M. T. MAYBERY, Auteur ; Cheryl DISSANAYAKE, Auteur ; Vincent W.V. JADDOE, Auteur ; F. C. VERHULST, Auteur ; H. TIEMEIER, Auteur ; W. MCINTOSH, Auteur ; T. WHITE, Auteur ; Andrew J. O. WHITEHOUSE, Auteur Article en page(s) : p.602-612 Langues : Anglais (eng) Mots-clés : brain growth head circumference pregnancy prenatal ultrasound Index. décimale : PER Périodiques Résumé : Altered trajectories of brain growth are often reported in Autism Spectrum Disorder (ASD), particularly during the first year of life. However, less is known about prenatal head growth trajectories, and no study has examined the relation with postnatal autistic symptom severity. The current study prospectively examined the association between fetal head growth and the spectrum of autistic symptom severity in two large population-based cohorts, including a sample of individuals with clinically diagnosed ASD. This study included 3,820 children from two longitudinal prenatal cohorts in The Netherlands and Australia, comprising 60 individuals with a confirmed diagnosis of ASD. Latent growth curve models were used to examine the relationship between fetal head circumference measured at three different time points and autistic traits measured in postnatal life using either the Social Responsiveness Scale or the Autism-Spectrum Quotient. While lower initial prenatal HC was weakly associated with increasing autistic traits in the Dutch cohort, this relationship was not observed in the Australian cohort, nor when the two cohorts were analysed together. No differences in prenatal head growth were found between individuals with ASD and controls. This large population-based study identified no consistent association across two cohorts between prenatal head growth and postnatal autistic traits. Our mixed findings suggest that further research in this area is needed. Autism Res 2018, 11: 602-612. (c) 2018 The Authors Autism Research published by International Society for Autism Research and Wiley Periodicals, Inc. LAY SUMMARY: It is not known whether different patterns of postnatal brain growth in Autism Spectrum Disorder (ASD) also occurs prenatally. We examined fetal head growth and autistic symptoms in two large groups from The Netherlands and Australia. Lower initial prenatal head circumference was associated with autistic traits in the Dutch, but not the Australian, group. No differences in head growth were found in individuals with ASD and controls when the data was combined. Our mixed findings suggest that more research in this area is needed. En ligne : http://dx.doi.org/10.1002/aur.1921 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=358
in Autism Research > 11-4 (April 2018) . - p.602-612[article] A prospective study of fetal head growth, autistic traits and autism spectrum disorder [Texte imprimé et/ou numérique] / Laura M. E. BLANKEN, Auteur ; A. DASS, Auteur ; Gail A. ALVARES, Auteur ; J. VAN DER ENDE, Auteur ; Nikita K. SCHOEMAKER, Auteur ; H. EL MARROUN, Auteur ; M. HICKEY, Auteur ; C. PENNELL, Auteur ; S. WHITE, Auteur ; M. T. MAYBERY, Auteur ; Cheryl DISSANAYAKE, Auteur ; Vincent W.V. JADDOE, Auteur ; F. C. VERHULST, Auteur ; H. TIEMEIER, Auteur ; W. MCINTOSH, Auteur ; T. WHITE, Auteur ; Andrew J. O. WHITEHOUSE, Auteur . - p.602-612.
Langues : Anglais (eng)
in Autism Research > 11-4 (April 2018) . - p.602-612
Mots-clés : brain growth head circumference pregnancy prenatal ultrasound Index. décimale : PER Périodiques Résumé : Altered trajectories of brain growth are often reported in Autism Spectrum Disorder (ASD), particularly during the first year of life. However, less is known about prenatal head growth trajectories, and no study has examined the relation with postnatal autistic symptom severity. The current study prospectively examined the association between fetal head growth and the spectrum of autistic symptom severity in two large population-based cohorts, including a sample of individuals with clinically diagnosed ASD. This study included 3,820 children from two longitudinal prenatal cohorts in The Netherlands and Australia, comprising 60 individuals with a confirmed diagnosis of ASD. Latent growth curve models were used to examine the relationship between fetal head circumference measured at three different time points and autistic traits measured in postnatal life using either the Social Responsiveness Scale or the Autism-Spectrum Quotient. While lower initial prenatal HC was weakly associated with increasing autistic traits in the Dutch cohort, this relationship was not observed in the Australian cohort, nor when the two cohorts were analysed together. No differences in prenatal head growth were found between individuals with ASD and controls. This large population-based study identified no consistent association across two cohorts between prenatal head growth and postnatal autistic traits. Our mixed findings suggest that further research in this area is needed. Autism Res 2018, 11: 602-612. (c) 2018 The Authors Autism Research published by International Society for Autism Research and Wiley Periodicals, Inc. LAY SUMMARY: It is not known whether different patterns of postnatal brain growth in Autism Spectrum Disorder (ASD) also occurs prenatally. We examined fetal head growth and autistic symptoms in two large groups from The Netherlands and Australia. Lower initial prenatal head circumference was associated with autistic traits in the Dutch, but not the Australian, group. No differences in head growth were found in individuals with ASD and controls when the data was combined. Our mixed findings suggest that more research in this area is needed. En ligne : http://dx.doi.org/10.1002/aur.1921 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=358