Autism-specific maternal anti-fetal brain autoantibodies are associated with metabolic conditions / Paula KRAKOWIAK in Autism Research, 10-1 (January 2017)  

Public ISBD [article]  inAutism Research > 10-1 (January 2017) . - p.89-98 Titre : Autism-specific maternal anti-fetal brain autoantibodies are associated with metabolic conditions Type de document : Texte imprimé et/ou numérique Auteurs : Paula KRAKOWIAK, Auteur ; Cheryl K. WALKER, Auteur ; Daniel J. TANCREDI, Auteur ; Irva HERTZ-PICCIOTTO, Auteur ; Judy VAN DE WATER, Auteur Article en page(s) : p.89-98 Langues : Anglais (eng) Mots-clés : autism  pregnancy  maternal autoantibodies  anti-fetal brain autoantibodies  metabolic conditions  diabetes Index. décimale : PER Périodiques Résumé : Approximately 23% of mothers of children with autism spectrum disorder (ASD) produce specific patterns of autoantibodies to fetal brain proteins that have been detected in only 1% of mothers of typically developing children. The biological mechanisms underlying the development of ASD-specific maternal autoantibodies are poorly understood. We sought to determine whether ASD-specific maternal autoantibodies identified postnatally were associated with metabolic conditions (MCs) during gestation. Participants were 227 mothers of 2–5 year old children with confirmed ASD, enrolled in CHARGE (Childhood Autism Risk from Genetics and the Environment) between January 2003 and April 2008, and from whom blood samples were collected and analyzed for anti-fetal brain autoantibodies (Ab+). MCs included diabetes, hypertensive disorders, and prepregnancy obesity or overweight, ascertained from medical records or structured telephone interviews. Log-linear regression models were performed to estimate prevalence ratios and 95% confidence intervals (CI) based on robust standard errors. Fifty-six (25%) mothers were Ab+. Ab+ prevalence was higher among mothers with diabetes, hypertensive disorders, or overweight compared to healthy mothers, but differences were not statistically significant. In a subset of 145 mothers whose children exhibited severe ASD (31 Ab+), those diagnosed with type 2 or gestational diabetes were 2.7-fold more likely to be Ab+ (95% CI 1.1, 6.6), controlling for delivery payer and smoking. Gestational diabetes specifically was associated with a 3.2-fold increased Ab+ prevalence (95% CI 1.2, 8.6). In this exploratory study, mothers whose children had severe ASD and who experienced diabetes were more likely to have anti-fetal brain autoantibodies 2–5 years later. En ligne : http://dx.doi.org/10.1002/aur.1657 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=303 [article] Autism-specific maternal anti-fetal brain autoantibodies are associated with metabolic conditions [Texte imprimé et/ou numérique] / Paula KRAKOWIAK, Auteur ; Cheryl K. WALKER, Auteur ; Daniel J. TANCREDI, Auteur ; Irva HERTZ-PICCIOTTO, Auteur ; Judy VAN DE WATER, Auteur . - p.89-98. Langues : Anglais (eng) in Autism Research > 10-1 (January 2017) . - p.89-98 Mots-clés : autism  pregnancy  maternal autoantibodies  anti-fetal brain autoantibodies  metabolic conditions  diabetes Index. décimale : PER Périodiques Résumé : Approximately 23% of mothers of children with autism spectrum disorder (ASD) produce specific patterns of autoantibodies to fetal brain proteins that have been detected in only 1% of mothers of typically developing children. The biological mechanisms underlying the development of ASD-specific maternal autoantibodies are poorly understood. We sought to determine whether ASD-specific maternal autoantibodies identified postnatally were associated with metabolic conditions (MCs) during gestation. Participants were 227 mothers of 2–5 year old children with confirmed ASD, enrolled in CHARGE (Childhood Autism Risk from Genetics and the Environment) between January 2003 and April 2008, and from whom blood samples were collected and analyzed for anti-fetal brain autoantibodies (Ab+). MCs included diabetes, hypertensive disorders, and prepregnancy obesity or overweight, ascertained from medical records or structured telephone interviews. Log-linear regression models were performed to estimate prevalence ratios and 95% confidence intervals (CI) based on robust standard errors. Fifty-six (25%) mothers were Ab+. Ab+ prevalence was higher among mothers with diabetes, hypertensive disorders, or overweight compared to healthy mothers, but differences were not statistically significant. In a subset of 145 mothers whose children exhibited severe ASD (31 Ab+), those diagnosed with type 2 or gestational diabetes were 2.7-fold more likely to be Ab+ (95% CI 1.1, 6.6), controlling for delivery payer and smoking. Gestational diabetes specifically was associated with a 3.2-fold increased Ab+ prevalence (95% CI 1.2, 8.6). In this exploratory study, mothers whose children had severe ASD and who experienced diabetes were more likely to have anti-fetal brain autoantibodies 2–5 years later. En ligne : http://dx.doi.org/10.1002/aur.1657 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=303

Erratum : Independent and dependent contributions of advanced maternal and paternal ages to autism risk / Janie F. SHELTON in Autism Research, 3-2 (April 2010)  

Public ISBD [article]  inAutism Research > 3-2 (April 2010) . - p.98 Titre : Erratum : Independent and dependent contributions of advanced maternal and paternal ages to autism risk Type de document : Texte imprimé et/ou numérique Auteurs : Janie F. SHELTON, Auteur ; Irva HERTZ-PICCIOTTO, Auteur ; Daniel J. TANCREDI, Auteur Année de publication : 2010 Article en page(s) : p.98 Langues : Anglais (eng) Index. décimale : PER Périodiques En ligne : http://dx.doi.org/10.1002/aur.135 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=102 [article] Erratum : Independent and dependent contributions of advanced maternal and paternal ages to autism risk [Texte imprimé et/ou numérique] / Janie F. SHELTON, Auteur ; Irva HERTZ-PICCIOTTO, Auteur ; Daniel J. TANCREDI, Auteur . - 2010 . - p.98. Langues : Anglais (eng) in Autism Research > 3-2 (April 2010) . - p.98 Index. décimale : PER Périodiques En ligne : http://dx.doi.org/10.1002/aur.135 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=102

Independent and dependent contributions of advanced maternal and paternal ages to autism risk / Janie F. SHELTON in Autism Research, 3-1 (February 2010)  

Public ISBD [article]  inAutism Research > 3-1 (February 2010) . - p.30-39 Titre : Independent and dependent contributions of advanced maternal and paternal ages to autism risk Type de document : Texte imprimé et/ou numérique Auteurs : Janie F. SHELTON, Auteur ; Irva HERTZ-PICCIOTTO, Auteur ; Daniel J. TANCREDI, Auteur Année de publication : 2010 Article en page(s) : p.30-39 Langues : Anglais (eng) Mots-clés : autism maternal-age paternal-age effect-measure-modification attributable-risk advanced-maternal-age advanced-paternal-age interaction Index. décimale : PER Périodiques Résumé : Reports on autism and parental age have yielded conflicting results on whether mothers, fathers, or both, contribute to increased risk. We analyzed restricted strata of parental age in a 10-year California birth cohort to determine the independent or dependent effect from each parent. Autism cases from California Department of Developmental Services records were linked to State birth files (1990-1999). Only singleton births with complete data on parental age and education were included (n=4,947,935, cases=12,159). In multivariate logistic regression models, advancing maternal age increased risk for autism monotonically regardless of the paternal age. Compared with mothers 25-29 years of age, the adjusted odds ratio (aOR) for mothers 40+ years was 1.51 (95% CI: 1.35-1.70), or compared with mothers <25 years of age, aOR=1.77 (95% CI, 1.56-2.00). In contrast, autism risk was associated with advancing paternal age primarily among mothers <30: aOR=1.59 (95% CI, 1.37-1.85) comparing fathers 40+ vs. 25-29 years of age. However, among mothers >30, the aOR was 1.13 (95% CI, 1.01-1.27) for fathers 40+ vs. 25-29 years of age, almost identical to the aOR for fathers <25 years. Based on the first examination of heterogeneity in parental age effects, it appears that women's risk for delivering a child who develops autism increases throughout their reproductive years whereas father's age confers increased risk for autism when mothers are <30, but has little effect when mothers are past age 30. We also calculated that the recent trend towards delayed childbearing contributed approximately a 4.6% increase in autism diagnoses in California over the decade. En ligne : http://dx.doi.org/10.1002/aur.116 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=993 [article] Independent and dependent contributions of advanced maternal and paternal ages to autism risk [Texte imprimé et/ou numérique] / Janie F. SHELTON, Auteur ; Irva HERTZ-PICCIOTTO, Auteur ; Daniel J. TANCREDI, Auteur . - 2010 . - p.30-39. Langues : Anglais (eng) in Autism Research > 3-1 (February 2010) . - p.30-39 Mots-clés : autism maternal-age paternal-age effect-measure-modification attributable-risk advanced-maternal-age advanced-paternal-age interaction Index. décimale : PER Périodiques Résumé : Reports on autism and parental age have yielded conflicting results on whether mothers, fathers, or both, contribute to increased risk. We analyzed restricted strata of parental age in a 10-year California birth cohort to determine the independent or dependent effect from each parent. Autism cases from California Department of Developmental Services records were linked to State birth files (1990-1999). Only singleton births with complete data on parental age and education were included (n=4,947,935, cases=12,159). In multivariate logistic regression models, advancing maternal age increased risk for autism monotonically regardless of the paternal age. Compared with mothers 25-29 years of age, the adjusted odds ratio (aOR) for mothers 40+ years was 1.51 (95% CI: 1.35-1.70), or compared with mothers <25 years of age, aOR=1.77 (95% CI, 1.56-2.00). In contrast, autism risk was associated with advancing paternal age primarily among mothers <30: aOR=1.59 (95% CI, 1.37-1.85) comparing fathers 40+ vs. 25-29 years of age. However, among mothers >30, the aOR was 1.13 (95% CI, 1.01-1.27) for fathers 40+ vs. 25-29 years of age, almost identical to the aOR for fathers <25 years. Based on the first examination of heterogeneity in parental age effects, it appears that women's risk for delivering a child who develops autism increases throughout their reproductive years whereas father's age confers increased risk for autism when mothers are <30, but has little effect when mothers are past age 30. We also calculated that the recent trend towards delayed childbearing contributed approximately a 4.6% increase in autism diagnoses in California over the decade. En ligne : http://dx.doi.org/10.1002/aur.116 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=993

Joint effects of prenatal air pollutant exposure and maternal folic acid supplementation on risk of autism spectrum disorder / J. GOODRICH AMANDA in Autism Research, 11-1 (January 2018)  

Public ISBD [article]  inAutism Research > 11-1 (January 2018) . - p.69-80 Titre : Joint effects of prenatal air pollutant exposure and maternal folic acid supplementation on risk of autism spectrum disorder Type de document : Texte imprimé et/ou numérique Auteurs : J. GOODRICH AMANDA, Auteur ; Heather E. VOLK, Auteur ; Daniel J. TANCREDI, Auteur ; Rob MCCONNELL, Auteur ; W. LURMANN FRED, Auteur ; L. HANSEN ROBIN, Auteur ; Rebecca J. SCHMIDT, Auteur Article en page(s) : p.69-80 Langues : Anglais (eng) Mots-clés : autism  ASD  folic acid  air pollution  prenatal exposure  environmental exposure Index. décimale : PER Périodiques Résumé : Independent studies report that periconceptional folic acid (FA) may decrease the risk of autism spectrum disorder (ASD) while exposure to air pollution may increase ASD risk. We examined the joint effects of gestational FA and air pollution exposures in association with ASD. We studied 346 ASD cases and 260 typically developing controls from the CHARGE case?control study. Self?reported FA intake for each month of pregnancy was quantified. Estimates of exposure to near roadway air pollution (NRP) and criteria air pollutant measures were assigned based on maternal residential history. Among mothers with high FA intake (>800 ?g) in the first pregnancy month, exposure to increasing levels of all air pollutants, except ozone, during the first trimester was associated with decreased ASD risk, while increased ASD risk was observed for the same pollutant among mothers with low FA intake (?800 ?g). This difference was statistically significant for NO2 (e.g., NO2 and low FA intake: OR=1.53 (0.91, 2.56) vs NO2 and high FA intake: OR=0.74 (0.46, 1.19), P?interaction=0.04). Mothers exposed to higher levels (? median) of any air pollutant during the first trimester of pregnancy and who reported low FA intake were at a higher ASD risk compared to mothers exposed to lower levels of that air pollutant and who reported high first month FA intake. Joint effects showed significant (alpha? En ligne : https://doi.org/10.1002/aur.1885 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=333 [article] Joint effects of prenatal air pollutant exposure and maternal folic acid supplementation on risk of autism spectrum disorder [Texte imprimé et/ou numérique] / J. GOODRICH AMANDA, Auteur ; Heather E. VOLK, Auteur ; Daniel J. TANCREDI, Auteur ; Rob MCCONNELL, Auteur ; W. LURMANN FRED, Auteur ; L. HANSEN ROBIN, Auteur ; Rebecca J. SCHMIDT, Auteur . - p.69-80. Langues : Anglais (eng) in Autism Research > 11-1 (January 2018) . - p.69-80 Mots-clés : autism  ASD  folic acid  air pollution  prenatal exposure  environmental exposure Index. décimale : PER Périodiques Résumé : Independent studies report that periconceptional folic acid (FA) may decrease the risk of autism spectrum disorder (ASD) while exposure to air pollution may increase ASD risk. We examined the joint effects of gestational FA and air pollution exposures in association with ASD. We studied 346 ASD cases and 260 typically developing controls from the CHARGE case?control study. Self?reported FA intake for each month of pregnancy was quantified. Estimates of exposure to near roadway air pollution (NRP) and criteria air pollutant measures were assigned based on maternal residential history. Among mothers with high FA intake (>800 ?g) in the first pregnancy month, exposure to increasing levels of all air pollutants, except ozone, during the first trimester was associated with decreased ASD risk, while increased ASD risk was observed for the same pollutant among mothers with low FA intake (?800 ?g). This difference was statistically significant for NO2 (e.g., NO2 and low FA intake: OR=1.53 (0.91, 2.56) vs NO2 and high FA intake: OR=0.74 (0.46, 1.19), P?interaction=0.04). Mothers exposed to higher levels (? median) of any air pollutant during the first trimester of pregnancy and who reported low FA intake were at a higher ASD risk compared to mothers exposed to lower levels of that air pollutant and who reported high first month FA intake. Joint effects showed significant (alpha? En ligne : https://doi.org/10.1002/aur.1885 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=333

Maternal preconception and prenatal stressful life events in association with child neurodevelopmental outcome in MARBLES: A high familial likelihood cohort / Daniel J. TANCREDI ; Rebecca J. SCHMIDT in Research in Autism Spectrum Disorders, 114 (June 2024)  

Public ISBD [article]  inResearch in Autism Spectrum Disorders > 114 (June 2024) . - p.102364 Titre : Maternal preconception and prenatal stressful life events in association with child neurodevelopmental outcome in MARBLES: A high familial likelihood cohort Type de document : Texte imprimé et/ou numérique Auteurs : Daniel J. TANCREDI, Auteur ; Rebecca J. SCHMIDT, Auteur Année de publication : 2024 Article en page(s) : p.102364 Langues : Anglais (eng) Mots-clés : Autism spectrum disorder  Stressful life events  Pregnancy  Prenatal maternal stress  Developmental delay  Autistic disorder Index. décimale : PER Périodiques Résumé : Background Prenatal stressful life events (SLEs) have been inconsistently associated with autism spectrum disorder (ASD). Mothers who are already raising a child with ASD could experience compounding effects of prenatal SLEs. This study prospectively examined prenatal SLEs in association with child neurodevelopmental outcomes in a high familial likelihood cohort. Methods Participants were 317 mother-child pairs from the Markers of Autism Risk in Babies: Learning Early Signs (MARBLES) Study, where pregnant women have previously had at least one other child with ASD. Mothers were interviewed during and at the end of pregnancy about whether they had experienced any of 7 SLE categories relating to finance, marriage, death, and more. Child neurodevelopment at three years old was classified as typically developing (TD), Non-TD, or ASD using an algorithm applied to Autism Diagnostic Observation Schedule (ADOS) and the Mullen Scales of Early Learning (MSEL) scores. Relative risk ratios (RRR) with TD as the reference outcome were estimated using multinomial logistic regression. Results Experiencing legal problems was significantly associated with an increased relative risk of child Non-TD (RRR 3.75; 95% CI: 1.15, 12.22). However, this finding was based on a small sample size (n = 6) and should be interpreted with caution. All other associations with Non-TD and ASD were non-significant. Conclusions Findings agree with previous literature suggesting prenatal SLEs might not increase likelihood for ASD and most were not associated with Non-TD. Future studies measuring perceived stress or stress biomarkers are warranted to further understand the true association of prenatal stress and likelihood of ASD. En ligne : https://doi.org/10.1016/j.rasd.2024.102364 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=529 [article] Maternal preconception and prenatal stressful life events in association with child neurodevelopmental outcome in MARBLES: A high familial likelihood cohort [Texte imprimé et/ou numérique] / Daniel J. TANCREDI, Auteur ; Rebecca J. SCHMIDT, Auteur . - 2024 . - p.102364. Langues : Anglais (eng) in Research in Autism Spectrum Disorders > 114 (June 2024) . - p.102364 Mots-clés : Autism spectrum disorder  Stressful life events  Pregnancy  Prenatal maternal stress  Developmental delay  Autistic disorder Index. décimale : PER Périodiques Résumé : Background Prenatal stressful life events (SLEs) have been inconsistently associated with autism spectrum disorder (ASD). Mothers who are already raising a child with ASD could experience compounding effects of prenatal SLEs. This study prospectively examined prenatal SLEs in association with child neurodevelopmental outcomes in a high familial likelihood cohort. Methods Participants were 317 mother-child pairs from the Markers of Autism Risk in Babies: Learning Early Signs (MARBLES) Study, where pregnant women have previously had at least one other child with ASD. Mothers were interviewed during and at the end of pregnancy about whether they had experienced any of 7 SLE categories relating to finance, marriage, death, and more. Child neurodevelopment at three years old was classified as typically developing (TD), Non-TD, or ASD using an algorithm applied to Autism Diagnostic Observation Schedule (ADOS) and the Mullen Scales of Early Learning (MSEL) scores. Relative risk ratios (RRR) with TD as the reference outcome were estimated using multinomial logistic regression. Results Experiencing legal problems was significantly associated with an increased relative risk of child Non-TD (RRR 3.75; 95% CI: 1.15, 12.22). However, this finding was based on a small sample size (n = 6) and should be interpreted with caution. All other associations with Non-TD and ASD were non-significant. Conclusions Findings agree with previous literature suggesting prenatal SLEs might not increase likelihood for ASD and most were not associated with Non-TD. Future studies measuring perceived stress or stress biomarkers are warranted to further understand the true association of prenatal stress and likelihood of ASD. En ligne : https://doi.org/10.1016/j.rasd.2024.102364 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=529

Placental methylome analysis from a prospective autism study / D. I. SCHROEDER in Molecular Autism, 7 (2016)  

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Prenatal perceived stress and urinary cortisol as risk factors for ASD and non-typical developmental outcomes in the MARBLES study / Daniel J. TANCREDI ; Rebecca J. SCHMIDT in Research in Autism Spectrum Disorders, 114 (June 2024)  

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