A variation in the infant oxytocin receptor gene modulates infant hippocampal volumes in association with sex and prenatal maternal anxiety

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Acosta , H , Tuulari , J J , Kantojärvi , K , Lewis , J D , Hashempour , N , Scheinin , N M , Lehtola , S J , Fonov , V S , Collins , D L , Evans , A , Parkkola , R , Lahdesmaki , T , Saunavaara , J , Merisaari , H , Karlsson , L , Paunio , T & Karlsson , H 2021 , ' A variation in the infant oxytocin receptor gene modulates infant hippocampal volumes in association with sex and prenatal maternal anxiety ' , Psychiatry Research. Neuroimaging , vol. 307 , 111207 . https://doi.org/10.1016/j.pscychresns.2020.111207

Title: A variation in the infant oxytocin receptor gene modulates infant hippocampal volumes in association with sex and prenatal maternal anxiety
Author: Acosta, H.; Tuulari, J. J.; Kantojärvi, K.; Lewis, J. D.; Hashempour, N.; Scheinin, N. M.; Lehtola, S. J.; Fonov, V. S.; Collins, D. L.; Evans, A.; Parkkola, R.; Lahdesmaki, T.; Saunavaara, J.; Merisaari, H.; Karlsson, L.; Paunio, T.; Karlsson, H.
Other contributor: University of Helsinki, SLEEPWELL Research Program
University of Helsinki, HUS Psychiatry






Date: 2021-01-30
Language: eng
Number of pages: 10
Belongs to series: Psychiatry Research. Neuroimaging
ISSN: 0925-4927
DOI: https://doi.org/10.1016/j.pscychresns.2020.111207
URI: http://hdl.handle.net/10138/335289
Abstract: Genetic variants in the oxytocin receptor (OTR) have been linked to distinct social phenotypes, psychiatric disorders and brain volume alterations in adults. However, to date, it is unknown how OTR genotype shapes prenatal brain development and whether it interacts with maternal prenatal environmental risk factors on infant brain volumes. In 105 Finnish mother-infant dyads (44 female, 11-54 days old), the association of offspring OTR genotype rs53576 and its interaction with prenatal maternal anxiety (revised Symptom Checklist 90, gestational weeks 14, 24, 34) on infant bilateral amygdalar, hippocampal and caudate volumes were probed. A sex-specific main effect of rs53576 on infant left hippocampal volumes was observed. In boys compared to girls, left hippocampal volumes were significantly larger in GG-homozygotes compared to A-allele carriers. Furthermore, genotype rs53576 and prenatal maternal anxiety significantly interacted on right hippocampal volumes irrespective of sex. Higher maternal anxiety was associated both with larger hippocampal volumes in A allele carriers than GG-homozygotes, and, though statistically weak, also with smaller right caudate volumes in GG-homozygotes than A-allele carriers. Our study results suggest that OTR genotype enhances hippocampal neurogenesis in male GG-homozygotes. Further, prenatal maternal anxiety might induce brain alterations that render GG-homozygotes compared to A-allele carriers more vulnerable to depression.
Subject: GxE interaction
MRI
Brain development
Rs53576
Amygdala
Hippocampus
Caudate
OXTR METHYLATION
STRESS
POLYMORPHISM
DEPRESSION
SEGMENTATION
VASOPRESSIN
EXPRESSION
PLASTICITY
REACTIVITY
IMPUTATION
3112 Neurosciences
3124 Neurology and psychiatry
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