相关实验视频

Updated: Jun 14, 2026

A Simple Composite Phenotype Scoring System for Evaluating Mouse Models of Cerebellar Ataxia

A Simple Composite Phenotype Scoring System for Evaluating Mouse Models of Cerebellar Ataxia

Published on: May 21, 2010

在脊椎大脑动症中基因型特定的脊髓损伤:一个ENIGMA-Ataxia研究

Thiago Junqueira Ribeiro Rezende^1,2, Isaac Adanyaguh³, Orlando G P Barsottini⁴

¹Department of Neurology, University of Campinas (UNICAMP), Campinas, Brazil thiago.jrezende@gmail.com.

Journal of neurology, neurosurgery, and psychiatry

|February 21, 2024

概括

脊髓损伤在脊髓大脑动症 (SCAs) 中是显而易见的,并且在SCA1,SCA2和SCA3中进展,但不是SCA6. 定量MRI揭示了这些变化,与疾病的严重程度和持续时间相关联.

科学领域:

神经成像是一种神经成像.
神经学神经学
量化MRI是指数量化的MRI.

背景情况:

脊髓损伤常见于脊髓大脑缩症 (SCAs).
以前的体内研究缺乏力量,与疾病严重程度/进展的联系尚不清楚.
这项研究调查了SCA1,SCA2,SCA3和SCA6.6的宫脊髓异常.

研究的目的:

在患有脊髓脊髓动症 (SCAs) 的个体中表征宫脊髓形态学异常.
评估脊髓变化,疾病严重程度和持续时间之间的关系.
为了确定这些异常是否存在于 preataxic 阶段,以及随着时间的推移它们的进展.

主要方法:

利用了来自ENIGMA-Ataxia联盟的9个地点的MRI数据.
评估上脊髓 (C1-C4) 横截面积 (CSA) 和离心率.
包括364名心动性SCA患者,56名心动性SCA前患者和394名对照患者.

主要成果:

与对照组相比,性SCA1,SCA2和SCA3患者的CSA降低,离心率增加.
CSA变化是显著的 (效果大小d>2.0) 并与性衰竭的严重程度和疾病持续时间相关.
在SCA6患者中,没有显著的脊髓差异;在SCA2和SCA3患者中,CSA降低.

结论:

脊髓异常是SCA1,SCA2和SCA3的早期和渐进性特征.
这些变化可以通过定量MRI检测,并且与疾病进展相关.
SCA6没有出现这些特定的脊髓异常.

关键词:

这就是为什么MRI是MRI.大脑小小脑的无氧.图像分析图像分析神经遗传学神经遗传学

更多相关视频

Spinal Cord Lateral Hemisection and Asymmetric Behavioral Assessments in Adult Rats

Spinal Cord Lateral Hemisection and Asymmetric Behavioral Assessments in Adult Rats

Published on: March 24, 2020

Cerebellar Regional Dissection for Molecular Analysis

Cerebellar Regional Dissection for Molecular Analysis

Published on: December 5, 2020

相关概念视频

Spinal Cord Injury ll: Pathophysiology

Spinal Cord Injury ll: Pathophysiology

Spinal cord injury progresses through two interconnected phases: primary injury and secondary injury.Primary InjuryPrimary injury happens at the moment of trauma and involves immediate mechanical damage to the spinal cord.Compression happens when broken vertebrae, herniated discs, or accumulating blood (such as a hematoma) press directly against the spinal cord, distorting its normal shape and function. In cases of contusion, the cord is bruised by a blunt force (like penetrating injuries or...

Secondary Spinal Cord Injury llI: Pathophysiology

Secondary Spinal Cord Injury llI: Pathophysiology

Early Ischemia and Ionic ImbalanceWithin minutes of spinal cord injury, a secondary cascade begins, progressing over hours to weeks. Vascular damage reduces blood flow, causing ischemia and mitochondrial dysfunction. ATP depletion leads to ion pump failure, membrane depolarization, sodium influx, potassium efflux, and water accumulation, resulting in cellular swelling. Increased intracellular calcium further disrupts mitochondria and accelerates cellular injury.Excitotoxicity and Neuronal...