抗抑郁药在严重抑郁症中的融合功能作用:神经成像元分析
medRxiv : the preprint server for health sciences
|December 11, 2023
概括
这一元分析揭示了抗抑郁药物对前侧双叶网络和左侧前额叶皮质产生影响,改善了主要抑郁症患者的执行功能和注意力. 没有发现神经递质的关联.
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) 治疗通常涉及抗抑郁药物,神经成像研究探索它们对大脑的影响.
- 现有的神经成像对MDD抗抑郁药影响的研究结果不一致.
- 需要进行定量合成,以确定一致的区域和网络级大脑变化及其与神经递质系统的关系.
研究的目的:
- 量化合成功能神经成像文献关于MDD中抗抑郁药物的作用.
- 确定受抗抑郁药影响的融合大脑区域和网络.
- 探索这些大脑变化和神经递质系统之间的关联.
主要方法:
- 一个系统的文献搜索确定了36个功能神经成像研究的抗抑郁药在MDD.
- 激活概率估计 (ALE) 绘制了治疗效应的区域趋同.
- 进行了功能解码,连接映射和与跨磁刺激 (TMS) 电路进行比较.
主要成果:
- 没有发现抗抑郁药效应的整体区域趋同.
- 亚组分析显示左背侧前额叶皮质 (与执行功能相关) 中的一个收集群.
- 网络层面的趋同被确定在前面对面区域,与特定的TMS治疗电路保持一致. 没有观察到与神经递质系统的相关性.
结论:
- 额头对面网络和左背侧前额叶皮质对于MDD中抗抑郁药的治疗效果至关重要.
- 这些大脑区域的参与表明抗抑郁药可以改善执行功能和情绪处理.
- 这些发现提供了对抗抑郁药物机制和潜在的神经调节点的洞察.
更多相关视频
相关概念视频
Antidepressant Drugs: MAOIs and Other Agents
247
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...
247
Antidepressant Drugs: Tricyclics, SSRIs, and SNRIs
400
Tricyclic Antidepressants (TCAs), including Desipramine (Norpramin), Imipramine (Tofranil), Clomipramine (Anafranil), and Amitriptyline (Elavil), inhibit serotonin and norepinephrine reuptake and also block other receptors. They are used for depression, pain conditions, and insomnia. Common adverse effects include anticholinergic effects, sedation, orthostatic hypotension, and weight gain. They have a narrow therapeutic window and so require plasma-level monitoring. Abrupt discontinuation can...
400
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
251
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,...
251
Antidepressant Drugs: Overview
509
Antidepressant drugs are a class of medications primarily used for treating various mood disorders, including major depression, anxiety disorders, and other related conditions. These medicines work by modulating the neurotransmitter balance within the brain, alleviating depressive symptoms. Antidepressants can be broadly categorized into several groups according to their mechanism of action and chemical structure: Selective Serotonin Reuptake Inhibitors (SSRIs), Serotonin-Norepinephrine...
509


