埃斯基塔洛普拉姆治疗对大脑核心网络之间有效连接的效果在严重抑郁症中
Yun Wang1, Jingjing Zhou1, Xiongying Chen1
1Beijing Key Laboratory of Mental Disorders, National Clinical Research Center for Mental Disorders & National Center for Mental Disorders, Beijing Anding Hospital, Capital Medical University, Beijing, China.
Journal of affective disorders
|January 14, 2024
概括
埃斯基塔洛普拉姆治疗在主要抑郁症 (MDD) 患者中部分正常化了大脑网络连接. 这项研究表明,抗抑郁药可以改善默认模式网络,突出网络和背部注意力网络中受损的功能相互作用.
科学领域:
- 神经科学是一个神经科学.
- 精神病学是一个精神病学.
- 医疗成像医学成像
背景情况:
- 重度抑郁症 (MDD) 与关键大脑网络之间的异常功能相互作用有关,包括默认模式网络 (DMN),突出网络 (SN) 和背部注意网络 (DAN).
- 抗抑郁药治疗对MDD中这些改变的大脑网络连接的影响仍然不完全理解.
研究的目的:
- 调查埃斯基塔洛普拉姆治疗是否可以使MDD患者的DMN,SN和DAN之间改变的有效连接正常化.
- 探索抗抑郁药对MDD中大脑功能的治疗作用背后的神经机制.
主要方法:
- 休息状态功能磁共振成像 (fMRI) 数据从46名未服用药物的MDD患者和58名健康对照 (HC) 中获得.
- 患有MDD的患者在基线和经过12周埃斯基塔洛普拉姆治疗后进行了扫描;HCs在同等时间点进行了扫描.
- 用光谱动态因果建模和参数实证贝叶斯模型来分析DMN,SN和DAN之间的有效连接.
主要成果:
- 与HC相比,MDD患者表现出明显的有效连接变化的模式,包括网络内DMN连接的增加和网络内SN/DAN连接的减少.
- 患有MDD的患者显示,SN/DAN与DMN的抑制连接发生变化,DAN与SN之间的连接减少.
- 随访分析显示,与DAN相关的六个连接在与基线相比,在埃斯基塔洛普拉姆治疗后有效连接性中显示出正常化的群体差异.
结论:
- 埃斯基塔洛普拉姆治疗表明,在患有MDD的个体中,在高阶大脑网络中改善受损的有效连接的部分能力.
- 这些发现有助于更深入地了解抗抑郁药对MDD中大脑功能的抗抑郁作用的神经生物学基础.
更多相关视频
相关概念视频
Electroconvulsive Therapy
41
Electroconvulsive therapy (ECT), or shock therapy, remains a critical biomedical intervention for severe, treatment-resistant depression. While its origins can be traced back to Hippocrates' observations that malaria-induced convulsions alleviated mental illness, modern ECT has evolved significantly from its earlier, more primitive applications. First introduced in 1938 by Ugo Cerletti and his colleagues, ECT involves inducing controlled seizures using electrical currents. In its early...
41
Antidepressant Drugs: MAOIs and Other Agents
237
Atypical antidepressants, including bupropion (Wellbutrin), mirtazapine (Remeron), nefazodone (Serzone), trazodone (Desyrel), and vilazodone (Viibryd), offer unique mechanisms of action. Bupropion weakly inhibits dopamine and norepinephrine reuptake, aiding depression treatment and smoking cessation, with a low risk of sexual dysfunction. Mirtazapine enhances serotonin and norepinephrine neurotransmission, leading to sedation, increased appetite, and weight gain. As a result, it helps treat...
237
Brain Imaging
234
Brain imaging technologies provide critical insights into both the structure and function of the human brain, enabling medical professionals and researchers to diagnose, study, and treat neurological disorders or psychiatric disorders more effectively.
These technologies include computerized axial tomography (CAT or CT scans), positron-emission tomography (PET scans), magnetic resonance imaging (MRI), functional magnetic resonance imaging (fMRI), and Transcranial Magnetic...
These technologies include computerized axial tomography (CAT or CT scans), positron-emission tomography (PET scans), magnetic resonance imaging (MRI), functional magnetic resonance imaging (fMRI), and Transcranial Magnetic...
234
Depression: Overview
247
Depression is a prevalent mental illness marked by persistent sadness and lack of interest in previously enjoyable activities. It can take several forms, including major depression, persistent depressive disorder, and bipolar I and II disorders. Symptoms range from emotional changes like chronic worry to physical changes like sleep disturbances and suicidal thoughts. From a neurobiological perspective, depression is believed to be triggered by abnormalities in the brain's prefrontal cortex,...
247


