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Fetal sex-specific epigenetic associations with prenatal maternal depressive symptoms

Prenatal maternal mental health is a global health challenge with poorly defined biological mechanisms. We used maternal blood samples collected during the second trimester from a Singaporean longitudinal birth cohort study to examine the association between inter-individual genome-wide DNA methylat...

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Detalles Bibliográficos
Autores principales: Kee, Michelle Z.L., Teh, Ai Ling, Clappison, Andrew, Pokhvisneva, Irina, MacIssac, Julie L., Lin, David T.S., Ramadori, Katia E., Broekman, Birit F.P., Chen, Helen, Daniel, Mary Lourdes, Karnani, Neerja, Kobor, Michael S., Gluckman, Peter D., Chong, Yap Seng, Huang, Jonathan Y., Meaney, Michael J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9421382/
https://www.ncbi.nlm.nih.gov/pubmed/36046194
http://dx.doi.org/10.1016/j.isci.2022.104860
Descripción
Sumario:Prenatal maternal mental health is a global health challenge with poorly defined biological mechanisms. We used maternal blood samples collected during the second trimester from a Singaporean longitudinal birth cohort study to examine the association between inter-individual genome-wide DNA methylation and prenatal maternal depressive symptoms. We found that (1) the maternal methylome was significantly associated with prenatal maternal depressive symptoms only in mothers with a female fetus; and (2) this sex-dependent association was observed in a comparable, UK-based birth cohort study. Qualitative analyses showed fetal sex-specific differences in genomic features of depression-related CpGs and genes mapped from these CpGs in mothers with female fetuses implicated in a depression-associated WNT/β-catenin signaling pathway. These same genes also showed enriched expression in brain regions linked to major depressive disorder. We also found similar female-specific associations with fetal-facing placenta methylome. Our fetal sex-specific findings provide evidence for maternal-fetal interactions as a mechanism for intergenerational transmission.