Journal ArticleDOI
Epigenetic programming by maternal behavior.
Ian C. G. Weaver,Nadia Cervoni,Frances A. Champagne,Ana C. D'Alessio,Shakti Sharma,Jonathan R. Seckl,Sergiy Dymov,Moshe Szyf,Michael J. Meaney +8 more
TLDR
It is shown that an epigenomic state of a gene can be established through behavioral programming, and it is potentially reversible, suggesting a causal relation among epigenomicState, GR expression and the maternal effect on stress responses in the offspring.Abstract:
Here we report that increased pup licking and grooming (LG) and arched-back nursing (ABN) by rat mothers altered the offspring epigenome at a glucocorticoid receptor (GR) gene promoter in the hippocampus. Offspring of mothers that showed high levels of LG and ABN were found to have differences in DNA methylation, as compared to offspring of 'low-LG-ABN' mothers. These differences emerged over the first week of life, were reversed with cross-fostering, persisted into adulthood and were associated with altered histone acetylation and transcription factor (NGFI-A) binding to the GR promoter. Central infusion of a histone deacetylase inhibitor removed the group differences in histone acetylation, DNA methylation, NGFI-A binding, GR expression and hypothalamic-pituitary-adrenal (HPA) responses to stress, suggesting a causal relation among epigenomic state, GR expression and the maternal effect on stress responses in the offspring. Thus we show that an epigenomic state of a gene can be established through behavioral programming, and it is potentially reversible.read more
Citations
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Journal ArticleDOI
Effects of stress throughout the lifespan on the brain, behaviour and cognition
TL;DR: In this Review a model is developed to explain why different disorders emerge in individuals exposed to stress at different times in their lives.
Journal ArticleDOI
Stress and the brain: from adaptation to disease
TL;DR: In response to stress, the brain activates several neuropeptide-secreting systems, which eventually leads to the release of adrenal corticosteroid hormones, which subsequently feed back on the brain and bind to two types of nuclear receptor that act as transcriptional regulators as mentioned in this paper.
Journal ArticleDOI
Effect of In Utero and Early-Life Conditions on Adult Health and Disease
TL;DR: Evidence from several disciplines is synthesized to support the contention that environmental factors acting during development should be accorded greater weight in models of disease causation.
Journal ArticleDOI
Epigenetic regulation of the glucocorticoid receptor in human brain associates with childhood abuse
Patrick O. McGowan,Aya Sasaki,Aya Sasaki,Ana C. D'Alessio,Sergiy Dymov,Benoit Labonté,Moshe Szyf,Gustavo Turecki,Michael J. Meaney,Michael J. Meaney +9 more
TL;DR: Findings translate previous results from rat to humans and suggest a common effect of parental care on the epigenetic regulation of hippocampal glucocorticoid receptor expression.
Journal ArticleDOI
Physiology and Neurobiology of Stress and Adaptation: Central Role of the Brain
TL;DR: As an adjunct to pharmaceutical therapy, social and behavioral interventions such as regular physical activity and social support reduce the chronic stress burden and benefit brain and body health and resilience.
References
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Maternal Care, Hippocampal Glucocorticoid Receptors, and Hypothalamic-Pituitary-Adrenal Responses to Stress
Dong Liu,Josie Diorio,Josie Diorio,Beth Tannenbaum,Beth Tannenbaum,Christian Caldji,Christian Caldji,Darlene D. Francis,Darlene D. Francis,Alison Freedman,Alison Freedman,Shakti Sharma,Shakti Sharma,Deborah Pearson,Deborah Pearson,Paul M. Plotsky,Paul M. Plotsky,Michael J. Meaney,Michael J. Meaney +18 more
TL;DR: It is suggested that maternal behavior serves to "program" hypothalamic-pituitary-adrenal responses to stress in the offspring.
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Maternal care, gene expression, and the transmission of individual differences in stress reactivity across generations.
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