素基因相关的受体对抗性降低了老鼠偏头痛模型中的运动病指标
Shafaqat M Rahman1, Anne E Luebke1,2
1University of Rochester, Department of Biomedical Engineering, Rochester, NY, USA.
Cephalalgia : an international journal of headache
|January 12, 2024
概括
卡尔西托尼基因相关 (CGRP) 和酸尼托普鲁塞德增加了小鼠的运动恶性. 虽然CGRP受体对抗剂,但不是三类药物,但它们有效地减少了运动诱导的恶心.
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.
背景情况:
- 偏头痛和前置偏头痛涉及增加的运动敏感性,导致恶心和运动恶心.
- 静脉偏头痛影响大约3%的美国成年人,女性不成比例地受到影响.
- 目前的偏头痛治疗方法,如三药,对和运动诱导的恶心无效.
研究的目的:
- 调查像CGRP和SNP这样的偏头痛触发剂是否会增加小鼠的运动恶心.
- 为了确定偏头痛抑制剂是否可以减轻CGRP或SNP诱导的运动恶心.
- 评估特定偏头痛治疗药物对运动诱导的恶心的疗效.
主要方法:
- 小鼠 (C57BL/6J) 接受了CGRP或SNP的腹腔内注射.
- 使用运动病指数 (MSI) 评分和运动诱导温度调节来评估运动病.
- 评估了 olcegepant,sumatriptan 和 rizatriptan 作为偏头痛抑制剂的疗效.
主要成果:
- 由于CGRP的胃肠道影响,MSI评分是不可靠的.
- 尾部血管扩张,恶心的替代品,为这两种触发因素提供了可靠的数据.
- 只有olcegepant治疗成功地逆转了诱导的尾巴血管扩张.
结论:
- 临床前数据表明,CGRP受体对抗剂对治疗偏头痛相关的运动诱导性恶心是有效的.
- 在这种偏头痛模型中,基于三的治疗方法在运动诱导的恶心方面表现得无效.
- 这些发现支持探索 vestibular偏头痛症状的小分子CGRP受体对抗剂.
相关概念视频
Chemotherapy-Induced Nausea and Vomiting: Neurokinin-1 Receptor Antagonists
163
Neurokinin 1 (NK1) receptors are distributed across the GI tract, vagal afferents, and key CNS regions including the central vomiting center and chemoreceptor trigger zone (CTZ) Chemotherapy agents stimulate enterochromaffin cells in the gastrointestinal (GI) tract to release large amounts of substance P (SP). SP is a neuropeptide released by specific sensory nerves in response to many different stressors, including those in the GI mucosa affected by chemotherapy. SP binds and activates...
163
Chemotherapy-Induced Nausea and Vomiting: 5-HT3 Receptor Antagonists
205
5-HT3 receptor antagonists, such as dolasetron, granisetron (Kytril), ondansetron (Zofran), and palonosetron (Axoli), are crucial in managing chemotherapy-induced nausea and vomiting (CINV) and postoperative nausea. These drugs selectively block 5-HT3 receptors in the visceral vagal and spinal afferent nerves, chemoreceptor trigger zone, and the vomiting center. They have a rapid onset of action and can be given as a single dose before chemotherapy. Ondansetron and granisetron, in particular,...
205
Drugs Affecting GI Tract Motility: Dopamine Receptor Antagonists
323
Prokinetic agents are specialized medications that stimulate gastrointestinal (GI) motility, promoting food movement through the GI tract. Dopamine, an inhibitory neurotransmitter, plays a significant role in this process, reducing GI motility and indirectly controlling the speed of digestion. Dopamine receptor antagonists, such as metoclopramide and domperidone, offer a unique advantage as prokinetic agents. By blocking the dopamine receptors, these drugs increase GI motility, improving food...
323
Chemotherapy-Induced Nausea and Vomiting: Dopamine Receptor Antagonists
292
Dopamine receptor antagonists, also known as antipsychotic agents, are critical in managing chemotherapy-induced vomiting. These antiemetic agents block dopamine receptors in the chemoreceptor trigger zone (CTZ), inhibiting signal transmission to the vomiting center. Antipsychotic agents encompass phenothiazines (PTZ), butyrophenones, benzamides, and thienobenzodiazepines (Zyprexa), which are utilized for their antiemetic and sedative properties.
Phenothiazines, such as prochlorperazine...
Phenothiazines, such as prochlorperazine...
292
Drugs Affecting GI Tract Motility: Serotonin Receptor Agonists
261
Serotonin, a crucial neurotransmitter synthesized by enterochromaffin cells, plays a cardinal role in regulating gastrointestinal (GI) motility. With over 90% of the body's total serotonin in the GI tract, its influence on digestive processes is profound. Serotonin is swiftly released upon various stimuli, such as food boluses or certain drugs, triggering intrinsic sensory neurons in the myenteric plexus and extrinsic vagal and spinal sensory neurons. This leads to the activation of the...
261
Equilibrium and Balance
4.7K
The inner ear assumes dual functionalities of auditory perception and equilibrium maintenance. The vestibule is the organ responsible for balance. This organ contains mechanoreceptors, specifically hair cells, endowed with stereocilia, which aid in deciphering information regarding the position and motion of our heads. Two intrinsic components, the utricle and saccule, help perceive head position, while the semicircular canals track head movement. Neurological messages initiated in the...
4.7K


