Prenatal versus postnatal sex steroid hormone effects on autistic traits in children at 18 to 24 months of age
| Autor: | Bonnie Auyeung, Lynn Thomson, Kieran J. O’Donnell, Kevin Taylor, Jag Ahluwalia, Simon Baron-Cohen, Gerald Hackett |
|---|---|
| Přispěvatelé: | Baron-Cohen, Simon [0000-0001-9217-2544], Apollo - University of Cambridge Repository |
| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: |
Pediatrics
medicine.medical_specialty Pediatric Research Initiative medicine.drug_class Checklist for Autism in Toddlers Autism Intellectual and Developmental Disabilities (IDD) Short Report Reproductive Health and Childbirth Physiology lcsh:RC346-429 03 medical and health sciences 0302 clinical medicine Developmental Neuroscience Clinical Research medicine Molecular Biology Testosterone lcsh:Neurology. Diseases of the nervous system 030304 developmental biology Pediatric 0303 health sciences Sexual differentiation medicine.diagnostic_test business.industry 1103 Clinical Sciences medicine.disease Androgen Estrogen Brain Disorders Psychiatry and Mental health Mental Health Sex steroid Amniocentesis business 030217 neurology & neurosurgery Developmental Biology Hormone |
| Zdroj: | Molecular Autism Auyeung, B, Ahluwalia, J, Thomson, L, Taylor, K, Hackett, G, O’donnell, K J & Baron-cohen, S 2012, ' Prenatal versus postnatal sex steroid hormone effects on autistic traits in children at 18 to 24 months of age ', Molecular Autism, vol. 3, no. 1, pp. 17-21 . https://doi.org/10.1186/2040-2392-3-17 Molecular Autism, Vol 3, Iss 1, p 17 (2012) |
| DOI: | 10.1186/2040-2392-3-17 |
| Popis: | Background Studies of prenatal exposure to sex steroid hormones predict autistic traits in children at 18 to 24 and at 96 months of age. However, it is not known whether postnatal exposure to these hormones has a similar effect. This study compares prenatal and postnatal sex steroid hormone levels in relation to autistic traits in 18 to 24-month-old children. Fetal testosterone (fT) and fetal estradiol (fE) levels were measured in amniotic fluid from pregnant women (n = 35) following routine second-trimester amniocentesis. Saliva samples were collected from these children when they reached three to four months of age and were analyzed for postnatal testosterone (pT) levels. Mothers were asked to complete the Quantitative Checklist for Autism in Toddlers (Q-CHAT), a measure of autistic traits in children 18 to 24 months old. Finding fT (but not pT) levels were positively associated with scores on the Q-CHAT. fE and pT levels showed no sex differences and no relationships with fT levels. fT levels were the only variable that predicted Q-CHAT scores. Conclusions These preliminary findings are consistent with the hypothesis that prenatal (but not postnatal) androgen exposure, coinciding with the critical period for sexual differentiation of the brain, is associated with the development of autistic traits in 18 to 24 month old toddlers. However, it is recognized that further work with a larger sample population is needed before the effects of postnatal androgen exposure on autistic traits can be ruled out. These results are also in line with the fetal androgen theory of autism, which suggests that prenatal, organizational effects of androgen hormones influence the development of autistic traits in later life. |
| Databáze: | OpenAIRE |
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