早期精神病中中脑的宏观和微观结构变化
bioRxiv : the preprint server for biology
|April 22, 2024
概括
早期精神病 (EP) 涉及显著的大脑变化,特别是在中脑. 这项研究发现中脑和海马体的结构性改变,与EP患者的症状严重程度相关.
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:
- 早期精神病 (EP) 的特点是大脑发生快速变化,越来越多的证据表明功能连接和结构发生了变化.
- 中脑在精神疾病中起着至关重要的作用,特别是在EP阶段.
- 人类连接组项目 - 早期精神病 (HCP-EP) 数据集为研究EP中大脑变化的研究提供了宝贵的资源.
研究的目的:
- 调查早期精神病 (EP) 患者中脑中的宏观和微观结构性大脑变化.
- 将这些结构变化与EP的临床结果和症状严重程度联系起来.
- 探索中脑电路在精神病早期的作用.
主要方法:
- 多种模式的MRI分析,包括基于变形的形态测量 (DBM) 粗体解剖.
- 扩散张力成像 (DTI) 来评估中脑的微结构完整性 (FA,AD,MD).
- 基于通道的空间统计 (TBSS) 用于白质通道分析和与PANSS分数的相关性.
主要成果:
- DBM确定了海马体,中脑和尾骨/骨的变化.
- DTI显示中脑FA/AD减少和MD增加;海马体显示相反的DTI趋势.
- 中脑体积与认知得分和DTI指标相关;FA与PANSS维度相关.
结论:
- 这些发现突显了中脑电路的参与和精神病早期的补充性改变.
- 这项研究提供了对EP潜在的基于大脑的生物标志物的见解.
- 这项研究为未来对神经成像发现与精神病临床表现之间的关系的研究铺平了道路.
更多相关视频
05:52Handwriting Analysis Indicates Spontaneous Dyskinesias in Neuroleptic Naïve Adolescents at High Risk for Psychosis
Published on: November 21, 2013
14.9K
07:33Organotypic Slice Cultures of Embryonic Ventral Midbrain: A System to Study Dopaminergic Neuronal Development in vitro
Published on: January 31, 2012
18.0K
相关概念视频
Psychosis: Pathophysiology of Schizophrenia and Other Psychotic Disorders
606
Schizophrenia is a neurodevelopmental disorder whose origins are rooted in complex genetic components. Despite our burgeoning understanding, the pathophysiology of this disorder remains incompletely deciphered.
Researchers have identified genetic factors that increase susceptibility to schizophrenia, underscoring the intricate interplay between genetics and environment in disease development. At the core of schizophrenia's pathophysiology is excessive dopaminergic neurotransmission within...
Researchers have identified genetic factors that increase susceptibility to schizophrenia, underscoring the intricate interplay between genetics and environment in disease development. At the core of schizophrenia's pathophysiology is excessive dopaminergic neurotransmission within...
606
Positive Symptoms of Schizophrenia: Hallucinations and Delusions
89
Schizophrenia is a complex mental health disorder that can manifest with various positive symptoms, including thought, movement, and behavior disorders. These symptoms significantly disrupt cognitive and motor functions, leading to profound effects on an individual's ability to engage with the world.
Thought Disorders
Disorganized and unusual thought processes mark thought disorders in schizophrenia. One key feature is disorganized speech, where an individual's conversation includes...
Thought Disorders
Disorganized and unusual thought processes mark thought disorders in schizophrenia. One key feature is disorganized speech, where an individual's conversation includes...
89
Biological Causes of Schizophrenia
55
Schizophrenia, a severe psychiatric disorder, arises from a complex interplay of biological factors, including genetic predisposition, structural brain abnormalities, neurotransmitter dysregulation, and developmental irregularities. These factors collectively contribute to the onset and progression of the disorder, which typically manifests in late adolescence or early adulthood.
Genetic Factors in Schizophrenia
The genetic basis of schizophrenia is strongly supported by family and twin...
Genetic Factors in Schizophrenia
The genetic basis of schizophrenia is strongly supported by family and twin...
55
Diencephalon: Anatomical Regions
1.9K
The diencephalon, etymologically translated as 'through brain,' plays an integral role as the conduit between the cerebrum and the vast extent of the nervous system. However, the olfactory system is an exception, as it interfaces directly with the cerebrum. The diencephalon, deeply ensconced beneath the cerebrum, primarily consists of three paired structures — the thalamus, hypothalamus, and epithelamus. It also includes accessory structures such as the subthalamus, which houses the...
1.9K
Schizophrenia
76
Schizophrenia, a term introduced by Swiss psychiatrist Eugen Bleuler in 1911, describes a severe psychological disorder marked by profound disruptions in attention, thought processes, language, emotion, and interpersonal relationships. The core feature of schizophrenia is psychosis — a state characterized by a fundamental detachment from reality. This disconnection manifests through distorted logic, impaired perception, and atypical behavior, severely affecting the lives of those...
76
Brainstem
2.0K
The brainstem, located inferior to the brain and superior to the spinal cord, serves as a bridge between the cerebrum and the spinal cord. It plays a vital role in relaying information and controlling critical life functions. It comprises three primary regions: the midbrain, pons, and medulla oblongata.
The Midbrain
The midbrain is located beneath the diencephalon and connects the cerebrum with the lower parts of the brain. The cerebral peduncles are prominent midbrain structures that house the...
The Midbrain
The midbrain is located beneath the diencephalon and connects the cerebrum with the lower parts of the brain. The cerebral peduncles are prominent midbrain structures that house the...
2.0K
