通过剂量依赖的调节,MPTP的中心和周边效应
R Lefter1, I M Balmus2, A Ciobica1,3,4
1Centre of Biomedical Research, Romanian Academy, Iasi, Romania.
Acta endocrinologica (Bucharest, Romania : 2005)
|August 21, 2023
概括
在老鼠中,MPTP会引起便秘和行为变化,而低会使情况恶化. 摄入可以减轻MPTP引起的这些影响,突出显示其在中枢神经系统之外的作用.
科学领域:
- 神经科学是一个神经科学.
- 胃肠病学 胃肠病学
- 毒理学 毒理学 毒理学
背景情况:
- MPTP (1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine) 可能会诱导胃肠机动性缺陷和中枢神经系统 (CNS) 的影响.
- 的神经保护,胃肠道和抗氧化作用表明它可能与MPTP诱导的损伤相互作用.
研究的目的:
- 研究多种摄入量对MPTP神经毒性的调节作用.
- 评估对MPTP诱导的功能性胃肠道障碍的影响.
主要方法:
- 在MPTP注射之前,老鼠接受了控制的饮食和缩的饮用水.
- 评估了胃肠道运动,行为模式 (Y迷宫,升高加迷宫,开放场地,强迫游泳测试) 以及大脑和肠道中的氧化应激标志物.
主要成果:
- MPTP诱导了依赖摄入的便秘,焦虑和抑郁类行为,以及改变了疼痛耐受性.
- 在大脑和肠道组织中观察到依赖的氧化应激.
结论:
- MPTP的全身效应超越中枢神经系统,延伸到胃肠道系统.
- 的摄入量可能在缓解MPTP诱导的异常方面发挥关键作用,这表明它在管理神经毒素相关疾病方面的重要性.
相关概念视频
01:29Drugs 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
01:24Parkinson's Disease: Treatment
297
Neurodegenerative disorders, such as Parkinson's Disease (PD), involve the gradual and irreversible destruction of neurons in particular brain areas. These disorders exhibit standard features like proteinopathies, selective vulnerability of some neurons, and an interaction of intrinsic properties, genetics, and environmental influences in neural injury.
Parkinson's Disease is primarily a result of the loss of dopaminergic neurons in the substantia nigra pars compacta. The cornerstone of...
Parkinson's Disease is primarily a result of the loss of dopaminergic neurons in the substantia nigra pars compacta. The cornerstone of...
297