Abstract
Neonatal handling is an early life stressor that leads to behavioral and neurochemical changes in adult rats in a sex-specific manner and possibly affects earlier stages of development. Here, we investigated the effects of neonatal handling (days 1-10 after birth) on juvenile rats focusing on biochemical parameters and olfactory memory after weaning. Male neonatal handled rats performed more crossings on the hole-board task, increased Na+ /K+ -ATPase activity in the olfactory bulb, and decreased acetylcholinesterase activity in the hippocampus versus non-handled males. Female neonatal handled animals increased the number of rearing and nose-pokes on the hole-board task, decreased glutathione peroxidase activity, and total thiol content in the hippocampus versus non-handled females. This study reinforces that early life stress affects behavioral and neurochemical parameters in a sex-specific manner even before the puberty onset.
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Schedule a callMore From: International journal of developmental neuroscience : the official journal of the International Society for Developmental Neuroscience
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