Levcromakalim会引起一种急性快速发作的偏头痛类型的表型,而不会诱导皮质扩散脱极化
Berkay Alpay1,2, Bariscan Cimen1,2, Elif Akaydin1,2
1Department of Medical Pharmacology, Faculty of Medicine, Hacettepe University, Sihhiye, Ankara, Türkiye.
The journal of headache and pain
|July 24, 2023
概括
莱夫克罗马卡利姆 (LVC) 在不引发皮质扩散脱极化 (CSD) 的情况下,在老鼠中迅速诱导急性偏头痛类症状. 这表明LVC是LVC.
科学领域:
- 神经科学是一个神经科学.
- 药理学 药理学是指药理学的学科.
- 偏头痛研究 偏头痛研究
背景情况:
- 偏头痛发作可以由 levcromakalim (LVC) 等药物触发,这也可能导致光环状症状.
- 皮层扩散脱极化 (CSD) 是偏头痛光圈的一个关键事件,并作为一个相关的动物模型.
- 研究LVC对偏头痛表型和CSD的影响对于了解偏头痛机制至关重要.
研究的目的:
- 为了确定LVC注射是否会在老鼠中诱导一种类似于偏头痛的急性表型.
- 为了评估LVC对皮质扩散脱极化 (CSD) 的影响,对偏头痛光圈的模型.
- 为了比较LVC的效果与已知的偏头痛诱导剂酸甘油 (NTG).
主要方法:
- 小鼠接受了LVC (1 mg/kg,I.P.) 的治疗. 或NTG (10毫克/千克,I.P. ),与控制相比.
- 行为测试评估了机械体,光敏感性和焦虑.
- 分析了CSD参数,唤起的潜能,EEG,c-fos表达和血脑屏障的完整性.
主要成果:
- LVC和NTG诱导了周围轨道,焦虑和光恐惧症.
- 由LVC诱导的偏头痛表型比NTG (4h) 解决得更快 (2h).
- 无论是LVC还是NTG都没有诱导CSD或相关标记;LVC增加了CSD传播失败,而NTG增加了CSD易受和失败.
结论:
- 在老鼠中,LVC迅速诱导了类似偏头痛的表型,独立于CSD.
- 快速发病和恢复表明三角质痛感系统的参与.
- LVC的K+通道开放特性可能有助于这些偏头痛类症状,提供潜在的治疗点.
相关概念视频
Antiepileptic Drugs: Modulators of Neurotransmitter Release Mediated by SV2A Protein
346
Antiepileptic drugs, such as levetiracetam (Keppra) and brivaracetam (Briviact), have emerged as crucial tools in managing epilepsy. These medications exert their therapeutic effects by targeting the synaptic vesicle protein SV2A, a transmembrane glycoprotein primarily found in the brain.
SV2A is a transmembrane glycoprotein located predominantly in the brain, modulating the release of neurotransmitters for neuronal communication. Both levetiracetam and brivaracetam exhibit a high affinity for...
SV2A is a transmembrane glycoprotein located predominantly in the brain, modulating the release of neurotransmitters for neuronal communication. Both levetiracetam and brivaracetam exhibit a high affinity for...
346
Depolarizing Blockers: Mechanism of Action
1.6K
Depolarizing blockers act on skeletal muscle fibers' membranes and induce their depolarization. Most depolarizing blockers have two quaternary N+ atoms that bind the nicotinic acetylcholine receptors and cause neuromuscular blockade within minutes.
Succinylcholine is the most commonly used depolarizing blocker. Chemically, it constitutes two molecules of acetylcholine joined together by an acetate methyl group. They act on the receptors in the same way as acetylcholine. Because...
Succinylcholine is the most commonly used depolarizing blocker. Chemically, it constitutes two molecules of acetylcholine joined together by an acetate methyl group. They act on the receptors in the same way as acetylcholine. Because...
1.6K


