自闭症大脑核心区域的神经化学差异:在儿童中进行的一项多素H-MRS研究
Ana Dionísio1,2, Ana Espírito1,2,3, Andreia C Pereira1,2
1Coimbra Institute for Biomedical Imaging and Translational Research (CIBIT), University of Coimbra, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548, Coimbra, Portugal.
Scientific reports
|January 29, 2024
概括
自闭症谱系障碍 (ASD) 显示了大脑化学的改变,在insula和putamen中含有较低的阿斯巴酸盐,在海马体中含有较高的Glx. 这些神经化学差异可能作为儿童ASD的生物标志物.
科学领域:
- 神经科学是一个神经科学.
- 生物化学 生物化学
- 儿科神经学 儿科神经学
背景情况:
- 自闭症谱系障碍 (ASD) 是一种复杂的神经发育状况,影响认知和行为功能.
- 自闭症的潜在病理生理学和分子神经生物学仍然是关键的研究领域,需要进一步调查.
- 了解特定大脑区域的神经化学变化对于推进ASD研究至关重要.
研究的目的:
- 研究与ASD病理生理学相关的关键大脑区域的神经化学差异.
- 使用磁共振光谱学分析总胆 (tCho),总N-乙酸 (tNAA) 和Glx (谷氨酸酸+谷氨胺) 的度.
- 探索儿童ASD潜在的神经化学标志物.
主要方法:
- 在22名患有自闭症的男性儿童和22名年龄和性别相匹配的典型发育 (TD) 对照组中,进行了一项多倍素质质子磁共振光谱 (1H-MRS) 研究.
- 对tCho,tNAA和Glx的度进行了非侵入性估计,在胰岛,海马体,面和体内垂体.
- 代谢物度被分析为与总肌酸 (tCr) 和总胆 (tCho) 的比率.
主要成果:
- 与TD对照人群相比,在ASD儿童的insula和putamen中观察到明显较低的阿斯巴酸盐 (tNAA) 比率.
- 与TD组相比,ASD组的海马体中的Glx比率明显高于TD组.
- 这些发现表明,ASD儿童的大脑中存在特定区域的代谢变化.
结论:
- 在特定的大脑区域的tNAA和Glx水平变化表明ASD的潜在神经化学标志物.
- 这些神经化学差异可能有助于更好地了解ASD病理生理学.
- 这些发现有助于未来在ASD临床监测和治疗策略方面取得进展.
相关概念视频
01:14Brain Imaging
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 Stimulation (TMS).
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 Stimulation (TMS).
01:19Autism Spectrum Disorder
Autism spectrum disorder (ASD) is a neurodevelopmental condition marked by persistent deficits in social communication and interaction alongside restrictive and repetitive behaviors or interests. ASD is sometimes accompanied by intellectual impairment.
These core symptoms manifest differently among individuals, ranging from mild to severe. The disorder's complexity extends beyond its clinical presentation, encompassing a diverse range of biological, cognitive, and sociocultural influences.
These core symptoms manifest differently among individuals, ranging from mild to severe. The disorder's complexity extends beyond its clinical presentation, encompassing a diverse range of biological, cognitive, and sociocultural influences.