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Auteur Topun AUSTIN
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Documents disponibles écrits par cet auteur (2)
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[article]
Titre : Fetal brain growth and infant autistic traits Type de document : texte imprimé Auteurs : Ezra AYDIN, Auteur ; Alex TSOMPANIDIS, Auteur ; Daren CHAPLIN, Auteur ; Rebecca HAWKES, Auteur ; Carrie ALLISON, Auteur ; Gerald HACKETT, Auteur ; Topun AUSTIN, Auteur ; Eglė PADAIGAITĖ, Auteur ; Lidia V. GABIS, Auteur ; John SUCKING, Auteur ; Rosemary J. HOLT, Auteur ; Simon BARON-COHEN, Auteur Article en page(s) : 11p. Langues : Anglais (eng) Mots-clés : Male Infant Pregnancy Female Humans Autistic Disorder/diagnostic imaging Brain/diagnostic imaging Gestational Age Autistic traits Early brain development Q-chat Transcerebellar diameter Ultrasound Index. décimale : PER Périodiques Résumé : BACKGROUND: Structural differences exist in the brains of autistic individuals. To date only a few studies have explored the relationship between fetal brain growth and later infant autistic traits, and some have used fetal head circumference (HC) as a proxy for brain development. These findings have been inconsistent. Here we investigate whether fetal subregional brain measurements correlate with autistic traits in toddlers. METHODS: A total of 219 singleton pregnancies (104 males and 115 females) were recruited at the Rosie Hospital, Cambridge, UK. 2D ultrasound was performed at 12-, 20- and between 26 and 30 weeks of pregnancy, measuring head circumference (HC), ventricular atrium (VA) and transcerebellar diameter (TCD). A total of 179 infants were followed up at 18-20 months of age and completed the quantitative checklist for autism in toddlers (Q-CHAT) to measure autistic traits. RESULTS: Q-CHAT scores at 18-20 months of age were positively associated with TCD size at 20 weeks and with HC at 28 weeks, in univariate analyses, and in multiple regression models which controlled for sex, maternal age and birth weight. LIMITATIONS: Due to the nature and location of the study, ascertainment bias could also have contributed to the recruitment of volunteer mothers with a higher than typical range of autistic traits and/or with a significant interest in the neurodevelopment of their children. CONCLUSION: Prenatal brain growth is associated with toddler autistic traits and this can be ascertained via ultrasound starting at 20 weeks gestation. En ligne : https://dx.doi.org/10.1186/s13229-024-00586-5 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=538
in Molecular Autism > 15 (2024) . - 11p.[article] Fetal brain growth and infant autistic traits [texte imprimé] / Ezra AYDIN, Auteur ; Alex TSOMPANIDIS, Auteur ; Daren CHAPLIN, Auteur ; Rebecca HAWKES, Auteur ; Carrie ALLISON, Auteur ; Gerald HACKETT, Auteur ; Topun AUSTIN, Auteur ; Eglė PADAIGAITĖ, Auteur ; Lidia V. GABIS, Auteur ; John SUCKING, Auteur ; Rosemary J. HOLT, Auteur ; Simon BARON-COHEN, Auteur . - 11p.
Langues : Anglais (eng)
in Molecular Autism > 15 (2024) . - 11p.
Mots-clés : Male Infant Pregnancy Female Humans Autistic Disorder/diagnostic imaging Brain/diagnostic imaging Gestational Age Autistic traits Early brain development Q-chat Transcerebellar diameter Ultrasound Index. décimale : PER Périodiques Résumé : BACKGROUND: Structural differences exist in the brains of autistic individuals. To date only a few studies have explored the relationship between fetal brain growth and later infant autistic traits, and some have used fetal head circumference (HC) as a proxy for brain development. These findings have been inconsistent. Here we investigate whether fetal subregional brain measurements correlate with autistic traits in toddlers. METHODS: A total of 219 singleton pregnancies (104 males and 115 females) were recruited at the Rosie Hospital, Cambridge, UK. 2D ultrasound was performed at 12-, 20- and between 26 and 30 weeks of pregnancy, measuring head circumference (HC), ventricular atrium (VA) and transcerebellar diameter (TCD). A total of 179 infants were followed up at 18-20 months of age and completed the quantitative checklist for autism in toddlers (Q-CHAT) to measure autistic traits. RESULTS: Q-CHAT scores at 18-20 months of age were positively associated with TCD size at 20 weeks and with HC at 28 weeks, in univariate analyses, and in multiple regression models which controlled for sex, maternal age and birth weight. LIMITATIONS: Due to the nature and location of the study, ascertainment bias could also have contributed to the recruitment of volunteer mothers with a higher than typical range of autistic traits and/or with a significant interest in the neurodevelopment of their children. CONCLUSION: Prenatal brain growth is associated with toddler autistic traits and this can be ascertained via ultrasound starting at 20 weeks gestation. En ligne : https://dx.doi.org/10.1186/s13229-024-00586-5 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=538 Maternal steroid levels and the autistic traits of the mother and infant / Alexandros TSOMPANIDIS in Molecular Autism, 12 (2021)
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[article]
Titre : Maternal steroid levels and the autistic traits of the mother and infant Type de document : texte imprimé Auteurs : Alexandros TSOMPANIDIS, Auteur ; Ezra AYDIN, Auteur ; E. PADAIGAITĖ, Auteur ; Gareth RICHARDS, Auteur ; Carrie ALLISON, Auteur ; Gerald HACKETT, Auteur ; Topun AUSTIN, Auteur ; Richard HOLT, Auteur ; Simon BARON-COHEN, Auteur Article en page(s) : 51 p. Langues : Anglais (eng) Mots-clés : Autism Autistic Traits Estradiol Interaction Pregnancy Prenatal Sex Index. décimale : PER Périodiques Résumé : BACKGROUND: Prenatal sex steroids have been associated with autism in several clinical and epidemiological studies. It is unclear how this relates to the autistic traits of the mother and how early this can be detected during pregnancy and postnatal development. METHODS: Maternal serum was collected from pregnant women (n = 122) before or during their first ultrasound appointment [mean = 12.7 (SD = 0.7) weeks]. Concentrations of the following were measured via immunoassays: testosterone, estradiol, dehydroepiandrosterone sulphate, progesterone; and sex hormone-binding globulin which was used to compute the free fractions of estradiol (FEI) and testosterone (FTI). Standardised human choriogonadotropin (hCG) and pregnancy-associated plasma protein A (PAPP-A) values were obtained from clinical records corresponding to the same serum samples. Mothers completed the Autism Spectrum Quotient (AQ) and for their infants, the Quantitative Checklist for Autism in Toddlers (Q-CHAT) when the infants were between 18 and 20 months old. RESULTS: FEI was positively associated with maternal autistic traits in univariate (n = 108, Pearson's r = 0.22, p = 0.019) and multiple regression models (semipartial r = 0.19, p = 0.048) controlling for maternal age and a diagnosis of PCOS. Maternal estradiol levels significantly interacted with fetal sex in predicting infant Q-CHAT scores, with a positive relationship in males but not females (n = 100, interaction term: semipartial r = 0.23, p = 0.036) after controlling for maternal AQ and other covariates. The opposite was found for standardised hCG values and Q-CHAT scores, with a positive association in females but not in males (n = 151, interaction term: r = -0.25, p = 0.005). LIMITATIONS: Sample size of this cohort was small, with potential ascertainment bias given elective recruitment. Clinical covariates were controlled in multiple regression models, but additional research is needed to confirm the statistically significant findings in larger cohorts. CONCLUSION: Maternal steroid factors during pregnancy are associated with autistic traits in mothers and their infants. En ligne : http://dx.doi.org/10.1186/s13229-021-00453-7 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=459
in Molecular Autism > 12 (2021) . - 51 p.[article] Maternal steroid levels and the autistic traits of the mother and infant [texte imprimé] / Alexandros TSOMPANIDIS, Auteur ; Ezra AYDIN, Auteur ; E. PADAIGAITĖ, Auteur ; Gareth RICHARDS, Auteur ; Carrie ALLISON, Auteur ; Gerald HACKETT, Auteur ; Topun AUSTIN, Auteur ; Richard HOLT, Auteur ; Simon BARON-COHEN, Auteur . - 51 p.
Langues : Anglais (eng)
in Molecular Autism > 12 (2021) . - 51 p.
Mots-clés : Autism Autistic Traits Estradiol Interaction Pregnancy Prenatal Sex Index. décimale : PER Périodiques Résumé : BACKGROUND: Prenatal sex steroids have been associated with autism in several clinical and epidemiological studies. It is unclear how this relates to the autistic traits of the mother and how early this can be detected during pregnancy and postnatal development. METHODS: Maternal serum was collected from pregnant women (n = 122) before or during their first ultrasound appointment [mean = 12.7 (SD = 0.7) weeks]. Concentrations of the following were measured via immunoassays: testosterone, estradiol, dehydroepiandrosterone sulphate, progesterone; and sex hormone-binding globulin which was used to compute the free fractions of estradiol (FEI) and testosterone (FTI). Standardised human choriogonadotropin (hCG) and pregnancy-associated plasma protein A (PAPP-A) values were obtained from clinical records corresponding to the same serum samples. Mothers completed the Autism Spectrum Quotient (AQ) and for their infants, the Quantitative Checklist for Autism in Toddlers (Q-CHAT) when the infants were between 18 and 20 months old. RESULTS: FEI was positively associated with maternal autistic traits in univariate (n = 108, Pearson's r = 0.22, p = 0.019) and multiple regression models (semipartial r = 0.19, p = 0.048) controlling for maternal age and a diagnosis of PCOS. Maternal estradiol levels significantly interacted with fetal sex in predicting infant Q-CHAT scores, with a positive relationship in males but not females (n = 100, interaction term: semipartial r = 0.23, p = 0.036) after controlling for maternal AQ and other covariates. The opposite was found for standardised hCG values and Q-CHAT scores, with a positive association in females but not in males (n = 151, interaction term: r = -0.25, p = 0.005). LIMITATIONS: Sample size of this cohort was small, with potential ascertainment bias given elective recruitment. Clinical covariates were controlled in multiple regression models, but additional research is needed to confirm the statistically significant findings in larger cohorts. CONCLUSION: Maternal steroid factors during pregnancy are associated with autistic traits in mothers and their infants. En ligne : http://dx.doi.org/10.1186/s13229-021-00453-7 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=459

