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首页> 外文期刊>BMC Neuroscience >Juvenile stress induces behavioral change and affects perineuronal net formation in juvenile mice
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Juvenile stress induces behavioral change and affects perineuronal net formation in juvenile mice

机译:幼年应激会诱发行为改变并影响幼年小鼠神经周围神经网的形成

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Many neuropsychiatric disorders develop in early life. Although the mechanisms involved have not been elucidated, it is possible that functional abnormalities of parvalbumin-positive interneurons (PV neurons) are present. Several previous studies have shown that juvenile stress is implicated in the development of neuropsychiatric disorders. We aimed to clarify the effects of juvenile stress on behavior and on the central nervous system. We investigated behavioral abnormalities of chronically-stressed mice during juvenilehood and the effect of juvenile stress on PV neurons and WFA-positive perineuronal nets (PNNs), which are associated with vulnerability and plasticity in the mouse brain. Due to juvenile stress, mice showed neurodevelopmental disorder-like behavior. Juvenile stressed mice did not show depressive-like behaviors, but on the contrary, they showed increased activity and decreased anxiety-like behavior. In the central nervous system of juvenile stressed mice, the fluorescence intensity of WFA-positive PNNs decreased, which may signify increased vulnerability. This study suggested that juvenile stressed mice showed behavioral abnormalities, resembling those seen in neuropsychiatric disorders, and increased brain vulnerability.
机译:许多神经精神疾病会在生命早期发展。尽管尚未阐明所涉及的机制,但可能存在小白蛋白阳性中间神经元(PV神经元)的功能异常。先前的一些研究表明,青少年应激与神经精神疾病的发展有关。我们旨在阐明青少年压力对行为和中枢神经系统的影响。我们调查了少年时期慢性应激小鼠的行为异常以及少年应激对PV神经元和WFA阳性神经周围神经网络(PNN)的影响,这些神经网络与小鼠大脑的脆弱性和可塑性有关。由于青少年的压力,小鼠表现出神经发育障碍样行为。处于应激状态的少年小鼠没有表现出抑郁样的行为,但是相反,它们表现出活动增加而焦虑样的行为减少。在处于应激状态的幼年小鼠的中枢神经系统中,WFA阳性PNN的荧光强度降低,这可能表明其脆弱性增加。这项研究表明,少年压力小鼠表现出行为异常,类似于在神经精神疾病中所见的行为异常,并增加了大脑的脆弱性。

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