Hum Brain Mapp:rACC可能是甲基苯丙胺男性滥用者戒断时间和情感症状严重程度之间联系的神经基础

2021-06-26 MedSci原创 MedSci原创

METH 滥用者的脑功能网络发生了改变,并且 VMN 中 rACC 的 FC 充当了 MA 中截断长度与情感症状严重程度之间关联的神经基质。

焦虑和抑郁是甲基苯丙胺(METH)滥用最常见的戒断症状,​​这进一步加剧了甲基苯丙胺滥用的复发。迄今为止,尚无针对 METH 滥用及其戒断症状的有效药物疗法。因此,了解 METH 滥用背后的神经机制及其戒断症状对于制定临床策略和改善患者护理至关重要。 Hum Brain Mapp杂志最近发表了研究文章,旨在利用静息状态fMRI来表征男性METH 滥用者(MAs)与年龄性别匹配的健康对照(HCs)的异常功能脑网络,并识别MAs中与情感性戒断症状相关的FC改变。 采用汉密尔顿焦虑(HAMA)和抑郁(HAMD)量表测量患者焦虑和抑郁症状的严重程度。为了避免假设偏差,我们使用数据驱动的独立分量分析(ICA)来识别全脑网络,并比较MAs和HCS之间各个网络的FC差异。此外,还进行了全脑回归分析,以探讨患者情感症状与脑网络FC之间的关系。随后,运用中介分析法探讨MAS患者的情感症状、临床特征和脑网络FC之间的潜在关系。我们假设:(a)与奖赏或压力回路相关的大脑网络中FC的改变可能是MAs中情感症状的基础;(b)这些网络FCs也可能介导禁欲持续时间与情感症状严重程度之间的联系。 该研究的目的是调查

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    2022-02-21 zchen
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