相关实验视频

Updated: Jan 10, 2026

Abbiategrasso Brain Bank Protocol for Collecting, Processing and Characterizing Aging Brains

Abbiategrasso Brain Bank Protocol for Collecting, Processing and Characterizing Aging Brains

Published on: June 3, 2020

在患有不同进展性超核麻临床变异的患者中,纵向区域脑缩的模式

Mahesh Kumar¹, Nirubol Tosakulwong², Stephen D Weigand²

¹Department of Neurology, Mayo Clinic, Rochester, MN.

|November 25, 2025

概括

区域性脑缩模式在渐进性超核性 (PSP) 临床变体之间有所不同,中脑缩是常见的. 将PSP评分表和MRI卷结合起来,可以优化PSP临床试验的结果.

科学领域:

神经成像是一种神经成像.
神经学神经学
临床试验临床试验

背景情况:

渐进性超核性麻 (PSP) 涉及脑干,皮下和额头区域的渐进性缩.
显而易见的PSP临床变体包括PSP-理查德森综合征 (PSP-RS),PSP皮层和PSP皮下.
纵向缩模式及其在PSP变体中作为结果指标的实用性尚未得到充分理解.

研究的目的:

为了确定区域性缩率是否在PSP临床变异中存在差异.
使用缩率和临床指标估计临床治疗试验的样本大小.

主要方法:

来自2次年访的纵向3T核磁共振扫描对50名PSP-RS,18名PSP-皮层,20名PSP-皮下患者和32名对照进行了分析.
混合效应回归比较了跨群体10个兴趣区域的年均缩率.
在治疗试验中,使用缩率和PSP评分表进行了样本大小计算.

主要成果:

与对照组相比,所有PSP变体都在中脑,小脑牙和亚体核中呈现出更大的缩.
PSP-RS表现出更高的中脑缩率比PSP-皮层下和PSP-皮层变体.
与PSP-RS.相比,PSP-皮层变异显示了白,面和尾状缩的增加.
与对照组相比,PSP-RS和PSP-皮层组的上部前部和前中心缩较大.

结论:

独特的区域性脑缩模式是PSP临床变体的特征,尽管中脑缩是常见的特征.
将PSP评分表与特定的MRI体积数据相结合,为PSP临床试验提供了最有效的结果测量方法.
这些发现有助于为PSP设计未来的治疗干预研究.

更多相关视频

Symmetric Bihemispheric Postmortem Brain Cutting to Study Healthy and Pathological Brain Conditions in Humans

Symmetric Bihemispheric Postmortem Brain Cutting to Study Healthy and Pathological Brain Conditions in Humans

Published on: December 18, 2016

Identification of Disease-related Spatial Covariance Patterns using Neuroimaging Data

Identification of Disease-related Spatial Covariance Patterns using Neuroimaging Data

Published on: June 26, 2013

相关概念视频

Parkinson's Disease: Overview

Parkinson's Disease: Overview

Neurodegenerative disorders are progressive diseases that cause irreversible damage and loss to neurons in specific brain areas. Examples of these disorders include Parkinson's disease, Alzheimer's disease, Multiple Sclerosis (MS), and Amyotrophic Lateral Sclerosis (ALS). These disorders share characteristics such as proteinopathies, selective neuronal vulnerability, and a complex interplay between genetic and environmental factors. The primary therapeutic goal for these conditions is...

Neural Regulation

Neural Regulation

Digestion begins with a cephalic phase that prepares the digestive system to receive food. When our brain processes visual or olfactory information about food, it triggers impulses in the cranial nerves innervating the salivary glands and stomach to prepare for food.