大脑功能连接,转录组和神经递质概况在严重抑郁症中具有异质性
Qian Li1,2, Haoran Li1,2, Fenghua Long1,2
1Department of Radiology, Huaxi MR Research Center (HMRRC), Institution of Radiology and Medical Imaging, https://ror.org/007mrxy13West China Hospital of Sichuan University, Chengdu, Sichuan Province, PR China.
Psychological medicine
|November 12, 2025
概括
大型抑郁症 (MDD) 有两种亚型:低连接性和高连接性. 这些亚型显示出不同的遗传和神经递质配置文件,为MDD异质性提供了新的见解.
科学领域:
- 神经成像是一种神经成像.
- 精神病学是一个精神病学.
- 计算神经科学是一种神经科学.
背景情况:
- 重度抑郁症 (MDD) 是一种复杂的心理健康状况,基础生物机制尚不清楚.
- 识别MDD的不同亚型对于促进我们对这种异质性疾病的理解和治疗至关重要.
研究的目的:
- 为了确定主要抑郁障碍 (MDD) 的功能连接 (FC) 基础的亚型.
- 调查与这些MDD亚型相关的独特生物机制,包括遗传和神经化学特征.
主要方法:
- 应用共识聚类到829名MDD患者的功能连接 (FC) 模式.
- 通过地图复制,交叉验证分类和未使用药物的子组分析验证的亚型.
- 分析了与基因表达和神经递质受体密度相关的FC变化.
主要成果:
- 确定了两种可重复的MDD亚型:低连接性 (n=527) 和高连接性 (n=299).
- 这两种亚型都在默认模式网络中表现出改变,具有明显的遗传丰富 (质与神经元差异化).
- 与特定的神经递质受体/输送物密度相关的FC变化 (血清素,GABA,乙胆,北上腺素,谷氨酸).
结论:
- 确定了MDD的两个不同的神经成像亚型:低连接性和高连接性.
- 展示了每个亚型的共享和独特的遗传和神经化学特征.
- 研究结果表明,对MDD的个性化治疗策略有潜在的临床影响.
更多相关视频
08:23A Multimodal Imaging- and Stimulation-based Method of Evaluating Connectivity-related Brain Excitability in Patients with Epilepsy
Published on: November 13, 2016
11.7K
10:43Developing Neuroimaging Phenotypes of the Default Mode Network in PTSD: Integrating the Resting State, Working Memory, and Structural Connectivity
Published on: July 1, 2014
15.7K
相关概念视频
01:27Depressive Disorders: Etiology
423
Depressive disorders result from a complex interplay of biological, psychological, and sociocultural factors, each contributing uniquely to the development and persistence of the condition. Understanding these factors provides critical insight into the multifaceted nature of depression.
Biological Factors in Depression
Biological predispositions significantly influence the risk of developing depressive disorders. Genetic studies highlight the role of variations in the serotonin transporter...
Biological Factors in Depression
Biological predispositions significantly influence the risk of developing depressive disorders. Genetic studies highlight the role of variations in the serotonin transporter...
423
01:18Depression: Overview
756
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,...
756
01:27Depressive Disorders: MDD and Dysthymia
606
Depressive disorders are a group of mental health conditions characterized by pervasive feelings of sadness, diminished pleasure in life, and a significant impact on daily functioning. These conditions are most prevalent in individuals during their 30s and affect women at twice the rate of men. Contrary to popular belief, younger individuals are generally more susceptible to these disorders than older adults. Two key types of depressive disorders include Major Depressive Disorder (MDD) and...
606
01:31Neurotransmitters
2.6K
Neurotransmitters are essential chemical messengers within the nervous system, facilitating the communication between neurons. These chemical messengers, varying in function and effect, are critical for sustaining various aspects of neurological health and emotional well-being.
2.6K
01:14Brain Imaging
651
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...
651
01:28Human Genetics
1.4K
Human genetics provides a profound framework for understanding the interplay between genetic predispositions and human psychology. At the heart of this discipline lies the study of how genes influence physical traits, behaviors, and susceptibility to diseases. Each person carries a unique genetic code that subtly or significantly shapes their psychological and behavioral landscape.
The complex relationship between genetics and psychology is observable through common biological components such...
The complex relationship between genetics and psychology is observable through common biological components such...
1.4K