门德尔随机化分析揭示了大脑结构连接体和精神疾病风险之间的因果关系
Kanwei Xiao1, Xinle Chang1, Chenfei Ye2
1School of Computer Science and Technology, Harbin Institute of Technology (Shenzhen), Shenzhen, China.
medRxiv : the preprint server for health sciences
|March 4, 2025
概括
这项研究使用了门德尔的随机化来探索大脑白物质连接和精神疾病之间的因果关系. 研究结果揭示了特定的连接模式,影响了自闭症和精神性厌食症等疾病的风险.
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.
- 遗传学 是一个遗传学.
背景情况:
- 大脑结构连接组的异常越来越多地与精神疾病有关.
- 然而,大脑连接和这些疾病之间的因果关系尚未得到充分理解.
研究的目的:
- 使用孟德尔随机化研究白质结构连接现象和主要精神疾病之间的双向因果关系.
- 为了确定潜在的脑连接体生物标志物用于精神疾病病因,检测和预防.
主要方法:
- 进行了双向的双样本孟德尔随机化 (MR) 分析.
- 研究了206种白质连接表型 (英国生物库,n=26,333) 与13种精神疾病 (n=14,307至1,222,882) 相比.
主要成果:
- 前进MR确定了五种白物质连接表型对六种精神疾病的因果作用.
- 具体的例子包括前对象/默认模式网络连接与自闭症风险之间的负面关联,以及前对象/海马体连接与神经厌食症和大麻使用障碍风险的降低.
- 反向MRI发现了两种精神疾病和四种白物质连接表型之间的因果关系,例如神经性厌食症易感性和视觉网络/pallidum连接.
结论:
- 这项研究提供了特定的大脑结构连接组特征与精神疾病风险之间的因果关系的证据.
- 这些发现为精神疾病的病因提供了新的见解.
- 在大脑结构连接体层面确定了潜在的生物标志物,用于早期检测和预防策略.
相关概念视频
Biological Causes of Schizophrenia
30
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...
30
Psychological and Sociocultural Causes of Schizophrenia
43
Schizophrenia, a complex psychiatric disorder, has been historically misunderstood. Early psychological theories attributed its origins to childhood trauma and unresponsive parenting. However, contemporary research largely rejects these notions, favoring the vulnerability-stress hypothesis. This model proposes that individuals with a genetic predisposition to schizophrenia may develop the disorder following exposure to significant environmental stressors. Notably, studies on high-risk...
43
Psychosis: Pathophysiology of Schizophrenia and Other Psychotic Disorders
356
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...
356
Human Genetics
516
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...
516
Behavioral Genetics and Its Designs
317
Behavior genetics explores how genetic inheritance influences human behavior. It focuses on how genes, passed from parents to offspring, contribute to the development of behavioral traits and tendencies. This branch of genetics seeks to understand the complex interplay between inherited genetic factors and environmental influences in shaping our behaviors.
The primary methodologies used in behavior genetics include family studies, twin studies, and adoption studies, each providing unique...
The primary methodologies used in behavior genetics include family studies, twin studies, and adoption studies, each providing unique...
317
Theoretical Approaches to Psychological Disorder
68
The development of psychological disorders, which are characterized by deviant, maladaptive, and personally distressing behaviors, has been explored through several theoretical approaches.
Biological approach
The biological approach posits that internal, organic factors are the primary causes of such disorders. This perspective emphasizes brain structure and function, genetic predispositions, and neurotransmitter imbalances. For example, schizophrenia has been associated with both genetic...
Biological approach
The biological approach posits that internal, organic factors are the primary causes of such disorders. This perspective emphasizes brain structure and function, genetic predispositions, and neurotransmitter imbalances. For example, schizophrenia has been associated with both genetic...
68


