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Gene - environment interaction in programming hippocampal plasticity: focus on adult neurogenesis

By  and Muriel eKoehl and Muriel eKoehl


Interactions between genes and environment are a critical feature of development and both contribute to shape individuality. They are at the chore of vulnerability / resiliency for mental illnesses. During the early postnatal period, several brain structures involved in cognitive and emotional processing, such as the hippocampus, still develop and it is likely that interferences with this neuronal development, which is genetically determined, might lead to long-lasting structural and functional consequences and increase the risk of developing psychopathology. One particular target is adult neurogenesis, which is involved in the regulation of cognitive and emotional processes. Insights into the dynamic interplay between genes and environmental factors in setting up individual rates of neurogenesis have come from laboratory studies exploring experience-dependent changes in adult neurogenesis as a function of individual’s genetic makeup. These studies have implications for our understanding of the mechanisms regulating adult neurogenesis, which could constitute a link between environmental challenges and psychopathology

Topics: Genetics, Hippocampus, adult neurogenesis, environment, life events, inbred strains, Neurosciences. Biological psychiatry. Neuropsychiatry, RC321-571
Publisher: Frontiers Media S.A.
Year: 2015
DOI identifier: 10.3389/fnmol.2015.00041
OAI identifier: oai:doaj.org/article:3d3405a4ba0d40a3b1e7003370e977f9
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