Abstract
Events early in life can program brain for a pattern of neuroendocrine and behavioral responses in later life. This mechanism is named “developmental phenotypic plasticity”. Experimental evidences from rodents show that early experiences influence long-term development of behavioral, neuroendocrine and cognitive functions. While some neonatal conditions lead to positive outcomes, offspring might also display neurological dysfunctions in adulthood in case of adverse conditions during the early development. Different factors have been suggested to mediate the effects of neonatal conditions on offspring development but their exact contribution as well as their interaction still needs to be clarified. Studies based on rodents have been developed to model the long-term effects of early environmental conditions on the developing brain. These studies highlight importance of maternal behavior in mediating the effects of early environmental conditions on the offspring. However, other studies suggest that aside from the level of maternal care, other factors (gender, neonatal glucocorticoid levels) contribute to the adjustment of offspring phenotype to early environmental cues. Altogether, rodents-based evidence suggests that developmental plasticity is a very complex phenomenon mediated by multiple factors that interact one to each other. Ultimately, the goal is to understand how early life events can lead to advantageous phenotype in adult life, or, on the contrary, can predispose individuals to psychopathologies such as depression or anxiety.
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Coutellier, L. Rodent models of early environment effects on offspring development and susceptibility to neurological diseases in adulthood. Translat.Neurosci. 3, 258–262 (2012). https://doi.org/10.2478/s13380-012-0034-9
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DOI: https://doi.org/10.2478/s13380-012-0034-9