Are thyroid hormone concentrations at birth associated with subsequent autism diagnosis? / Sumi HOSHIKO in Autism Research, 4-6 (December 2011)  

Public ISBD [article]  inAutism Research > 4-6 (December 2011) . - p.456-463 Titre : Are thyroid hormone concentrations at birth associated with subsequent autism diagnosis? Type de document : Texte imprimé et/ou numérique Auteurs : Sumi HOSHIKO, Auteur ; Judith K. GRETHER, Auteur ; Gayle C. WINDHAM, Auteur ; Daniel W. SMITH, Auteur ; Karen FESSEL, Auteur Année de publication : 2012 Article en page(s) : p.456-463 Langues : Anglais (eng) Mots-clés : epidemiology  autism  thyroid  environment  hormones Index. décimale : PER Périodiques Résumé : Thyroid hormones substantially influence central nervous system development during gestation. We hypothesized that perturbations of early thyroid profiles may contribute to the development of autism spectrum disorders (ASD). Thyroid pathways could provide a mechanism by which environmental factors that affect the thyroid system may impact autism occurrence or phenotypic expression. We investigated whether thyroxine (T4) levels at birth are associated with subsequent ASD, using two existing California study groups in multivariate analysis. One study group included children born in the San Francisco Bay Area in 1994, with cases identified through the California Department of Developmental Services (DDS) and/or the Kaiser Permanente Medical Care Program of Northern California (244 cases, 266 controls); the other included children born in California in 1995, with cases identified through DDS (310 cases, 518 controls). Matched controls were selected from birth certificate records. This exploratory analysis suggested that infants with very low T4 (<3rd percentile) may have higher ASD risk, although results reached statistical significance only for the 1995 study group (1995: OR = 2.74 (95% CI 1.30–5.75; 1994: OR = 1.71 (95% CI 0.57–5.19). A variety of alternate analyses were conducted with available data, without further resolution of the difference between the two study groups. The results of our study indicate that further studies are warranted to investigate whether thyroid hormone perturbations play a role in the development of ASD by evaluating additional potential confounders and genotype or phenotype in larger studies. En ligne : http://dx.doi.org/10.1002/aur.219 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=151 [article] Are thyroid hormone concentrations at birth associated with subsequent autism diagnosis? [Texte imprimé et/ou numérique] / Sumi HOSHIKO, Auteur ; Judith K. GRETHER, Auteur ; Gayle C. WINDHAM, Auteur ; Daniel W. SMITH, Auteur ; Karen FESSEL, Auteur . - 2012 . - p.456-463. Langues : Anglais (eng) in Autism Research > 4-6 (December 2011) . - p.456-463 Mots-clés : epidemiology  autism  thyroid  environment  hormones Index. décimale : PER Périodiques Résumé : Thyroid hormones substantially influence central nervous system development during gestation. We hypothesized that perturbations of early thyroid profiles may contribute to the development of autism spectrum disorders (ASD). Thyroid pathways could provide a mechanism by which environmental factors that affect the thyroid system may impact autism occurrence or phenotypic expression. We investigated whether thyroxine (T4) levels at birth are associated with subsequent ASD, using two existing California study groups in multivariate analysis. One study group included children born in the San Francisco Bay Area in 1994, with cases identified through the California Department of Developmental Services (DDS) and/or the Kaiser Permanente Medical Care Program of Northern California (244 cases, 266 controls); the other included children born in California in 1995, with cases identified through DDS (310 cases, 518 controls). Matched controls were selected from birth certificate records. This exploratory analysis suggested that infants with very low T4 (<3rd percentile) may have higher ASD risk, although results reached statistical significance only for the 1995 study group (1995: OR = 2.74 (95% CI 1.30–5.75; 1994: OR = 1.71 (95% CI 0.57–5.19). A variety of alternate analyses were conducted with available data, without further resolution of the difference between the two study groups. The results of our study indicate that further studies are warranted to investigate whether thyroid hormone perturbations play a role in the development of ASD by evaluating additional potential confounders and genotype or phenotype in larger studies. En ligne : http://dx.doi.org/10.1002/aur.219 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=151

Autism spectrum disorders in relation to parental occupation in technical fields / Gayle C. WINDHAM in Autism Research, 2-4 (August 2009)  

Public ISBD [article]  inAutism Research > 2-4 (August 2009) . - p.183-191 Titre : Autism spectrum disorders in relation to parental occupation in technical fields Type de document : Texte imprimé et/ou numérique Auteurs : Gayle C. WINDHAM, Auteur ; Judith K. GRETHER, Auteur ; Karen FESSEL, Auteur Année de publication : 2009 Article en page(s) : p.183-191 Langues : Anglais (eng) Mots-clés : autism parental-occupation broader-autism-phenotype risk-factors Index. décimale : PER Périodiques Résumé : A previous study reported that fathers of children with autism spectrum disorders (ASD) were more likely to work as engineers, requiring systemizing skills, and suggesting a distinct phenotype, but alternatively this may have been related to selection biases. We conducted a population-based study to explore whether fathers, or mothers, of children with ASD are over-represented in fields requiring highly technical skills. Subjects included 284 children with ASD and 659 gender-matched controls, born in 1994 in the San Francisco Bay Area. Parental occupation and industry were abstracted verbatim from birth certificates. Engineering, computer programming, and science were examined as highly technical occupations. To limit bias by parental socio-economic status, we selected a referent group of occupations that seemed professionally similar but of a less technical nature. Odds ratios (ORs) and 95% confidence intervals (CI) were calculated by logistic regression, adjusting for parental age, education, and child race. Mothers of cases were somewhat more likely to work in hi-tech occupations (6.7%) than mothers of controls (4.0%, P=0.07), but little difference was observed among fathers, nor for engineering separately. Compared to parents in other white collar occupations, the adjusted OR for highly technical occupations among mothers was 2.5 (95% CI: 1.2-5.3) and among fathers was 1.3 (95% CI: 0.79-2.1), with no evidence of a joint effect observed. Our results regarding maternal occupation in technical fields being associated with ASD in offspring suggest further study to distinguish parental occupation as a phenotypic marker of genetic loading vs. other social or exposure factors. En ligne : http://dx.doi.org/10.1002/aur.84 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=937 [article] Autism spectrum disorders in relation to parental occupation in technical fields [Texte imprimé et/ou numérique] / Gayle C. WINDHAM, Auteur ; Judith K. GRETHER, Auteur ; Karen FESSEL, Auteur . - 2009 . - p.183-191. Langues : Anglais (eng) in Autism Research > 2-4 (August 2009) . - p.183-191 Mots-clés : autism parental-occupation broader-autism-phenotype risk-factors Index. décimale : PER Périodiques Résumé : A previous study reported that fathers of children with autism spectrum disorders (ASD) were more likely to work as engineers, requiring systemizing skills, and suggesting a distinct phenotype, but alternatively this may have been related to selection biases. We conducted a population-based study to explore whether fathers, or mothers, of children with ASD are over-represented in fields requiring highly technical skills. Subjects included 284 children with ASD and 659 gender-matched controls, born in 1994 in the San Francisco Bay Area. Parental occupation and industry were abstracted verbatim from birth certificates. Engineering, computer programming, and science were examined as highly technical occupations. To limit bias by parental socio-economic status, we selected a referent group of occupations that seemed professionally similar but of a less technical nature. Odds ratios (ORs) and 95% confidence intervals (CI) were calculated by logistic regression, adjusting for parental age, education, and child race. Mothers of cases were somewhat more likely to work in hi-tech occupations (6.7%) than mothers of controls (4.0%, P=0.07), but little difference was observed among fathers, nor for engineering separately. Compared to parents in other white collar occupations, the adjusted OR for highly technical occupations among mothers was 2.5 (95% CI: 1.2-5.3) and among fathers was 1.3 (95% CI: 0.79-2.1), with no evidence of a joint effect observed. Our results regarding maternal occupation in technical fields being associated with ASD in offspring suggest further study to distinguish parental occupation as a phenotypic marker of genetic loading vs. other social or exposure factors. En ligne : http://dx.doi.org/10.1002/aur.84 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=937

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