相关实验视频
Updated: Jul 22, 2025

09:41
Comprehensive Autopsy Program for Individuals with Multiple Sclerosis
Published on: July 19, 2019
11.5K
托代谢物与多发性硬化症的类型和严重程度的关系
Saziye Melike Turan Isık1, Duygu Eryavuz Onmaz2, Ahmet Hakan Ekmekci3
1Department of Neurology, Konya Numune State Hospital, Selcuklu, Konya 42060, Turkiye.
Multiple sclerosis and related disorders
|July 23, 2023
概括
通过kynurenine途径的托芬代谢在多发性硬化症 (MS) 患者与对照组不同. 虽然变化的代谢物比率可能有助于MS诊断,但与疾病严重程度或亚型无关.
科学领域:
- 生物化学 生化学
- 神经科学是一个神经科学.
- 代谢学 代谢学 代谢学
背景情况:
- 托芬是一种必需的氨基酸,通过kynurenine途径代谢.
- 这条路径的异常与神经退行性疾病有关.
- 在多发性硬化症 (MS) 中研究托芬代谢物对于了解疾病机制至关重要.
研究的目的:
- 为了比较多发性硬化症患者和健康对照人群之间的托芬途径代谢物水平.
- 探索这些代谢物与多发性硬化症亚型之间的关系.
- 评估托芬代谢物与扩展残疾状况量表 (EDSS) 评分的相关性.
主要方法:
- 液体染色体质谱法用于量化80名多发性硬化症患者及其代谢物和41名健康对照者的托芬.
- 患者包括复发性复发性多发性硬化症 (RRMS) 和继发性进展性多发性硬化症 (SPMS) 亚型.
- 代谢物水平与疾病状态,亚型和EDSS分数相关分析.
主要成果:
- 与对照组相比,多发性硬化症患者表现出明显较低的托芬水平和较高的金氨酸和氨酸水平.
- 氨酸/氨酸和氨酸/氨酸的比率显示出MS诊断的潜力,但敏感性和特异性较低.
- 在RRMS和SPMS亚型之间,以及在复发和稳定的RRMS状态之间,没有发现托芬代谢物的显著差异.
- 托代谢物和EDSS得分之间没有明显的相关性.
结论:
- 在多发性硬化症患者中,托代谢的 kynurenine 途径发生变化.
- 特定的代谢物比率可能为MS提供有限的诊断实用性.
- 托芬代谢物水平不足以确定MS疾病亚型或严重程度 (EDSS评分).
相关概念视频
T Cell Types and Functions
1.1K
When T cells with CD4 markers are activated, they give rise to two types of effector cells: helper T cells and regulatory T cells. Meanwhile, T cells with CD8 markers differentiate into effector cytotoxic T cells. The differentiation of CD4 T cells into helper T cell subsets, such as Th1, Th2, and Th17 cells, is dependent on the antigen type, antigen-presenting cell, and regulatory cytokines.
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
1.1K
Drugs Affecting Neurotransmitter Synthesis
1.4K
Drugs affecting neurotransmitter synthesis can impact the adrenergic neuron and the synthesis of neurotransmitters. For example, α-methyltyrosine and carbidopa target specific enzymes involved in catecholamine synthesis. α-methyltyrosine inhibits the enzyme tyrosine hydroxylase, which converts tyrosine into dopamine. By blocking this enzyme, α-methyltyrosine reduces dopamine production and other catecholamines. Carbidopa, on the other hand, inhibits the enzyme dopa decarboxylase,...
1.4K
Antidepressant Drugs: MAOIs and Other Agents
275
Atypical antidepressants, including bupropion (Wellbutrin), mirtazapine (Remeron), nefazodone (Serzone), trazodone (Desyrel), and vilazodone (Viibryd), offer unique mechanisms of action. Bupropion weakly inhibits dopamine and norepinephrine reuptake, aiding depression treatment and smoking cessation, with a low risk of sexual dysfunction. Mirtazapine enhances serotonin and norepinephrine neurotransmission, leading to sedation, increased appetite, and weight gain. As a result, it helps treat...
275
![Radiosynthesis of 1-2-[18F]Fluoroethyl-L-Tryptophan using a One-pot, Two-step Protocol](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F63025.jpg&w=3840&q=50)
