Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications.

Dysregulation of adult hippocampal neuroplasticity in major depression: pathogenesis and therapeutic implications.
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成年抑郁症患者海马神经可塑性失调:发病机制和治疗意义。

DOI:
10.1038/s41380-022-01520-y
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发表时间:
2022-06
影响因子:
11
通讯作者:
Boldrini, Maura
Boldrini, Maura
中科院分区:
医学1区
文献类型:
--
作者:
Tartt, Alexandria N.;Mariani, Madeline B.;Hen, Rene;Mann, J. John;Boldrini, Maura

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重度抑郁症(MDD)以前被假设为一种单胺缺乏症,其中突触间隙中单胺水平低被认为是抑郁症状的基础。然而,最近,抑郁症的神经可塑性假说发生了范式转变,其中抗抑郁药的下游效应(例如增加神经发生)有助于改善认知和情绪。本综述采用自上而下的方法来评估行为和海马依赖性回路的变化如何归因于分子、结构和突触水平的异常。最后,我们讨论了抗抑郁治疗如何在调节神经可塑性方面发挥共同作用,并考虑了突出的问题和未来的前景。
Major depressive disorder (MDD) was previously hypothesized to be a disease of monoamine deficiency in which low levels of monoamines in the synaptic cleft were believed to underlie depressive symptoms. More recently, however, there has been a paradigm shift towards a neuroplasticity hypothesis of depression in which downstream effects of antidepressants, such as increased neurogenesis, contribute to improvements in cognition and mood. This review takes a top-down approach to assess how changes in behavior and hippocampal-dependent circuits may be attributed to abnormalities at the molecular, structural and synaptic level. We conclude with a discussion of how antidepressant treatments share a common effect in modulating neuroplasticity and consider outstanding questions and future perspectives.
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