内分泌大麻素通过双端前部岛屿投射阻断头痛和焦虑并发症
Jiang Bian1,2,3, Yue-Hui Zhang3, Li Yin3
1Institute of Brain Function and Diseases, Departments of Neurology and Psychiatry, West China Hospital of Sichuan University, Chengdu 610041, China.
Research (Washington, D.C.)
|December 11, 2025
概括
慢性头痛和焦虑涉及特定的大脑电路和内分泌大麻素 (eCB) 信号. 在这些电路中准大麻素1型受体 (CB1Rs) 为伴随性头痛和焦虑提供了潜在的治疗方法.
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:
- 头痛影响全球52%,经常与焦虑同时发生,但机制尚不清楚.
- 异索二酸盐 (ISDN) 用于研究头痛模型.
- 内分泌大麻素 (eCB) 信号传递在神经功能中起作用.
研究的目的:
- 阐明神经回路和内分泌大麻素 (eCB) 系统在并发性头痛和焦虑中的作用.
- 调查针对头痛和焦虑的eCB信号的治疗潜力.
主要方法:
- 慢性ISDN注射在小鼠中诱导头痛和焦虑模型.
- 电生理学记录和c-fos表达分析在大脑区域,如前半岛 (AI),前临皮质 (PrL) 和状核的床核的末核 (ovBNST).
- 基因操纵 (前联想性淘汰) 和药理干预,针对eCB酶和大麻素1型受体 (CB1Rs).
主要成果:
- 慢性ISDN诱导了AI,PrL和ovBNST中的c-fos表达,使这些区域产生头痛和焦虑.
- 抑制腹部AI (vAI) -PrL和背部AI (dAI) -ovBNST电路可以选择性地阻止ISDN诱导的头痛和焦虑.
- 在头痛和焦虑刺激期间,eCB释放在vAI-PrL和dAI-ovBNST突触上增加.
- 准eCB信号 (eCB酶敲击,CB1R激活) 缓解了头痛和焦虑.
- 系统性eCB降解抑制或PrLs/ovBNSTs中的CB1R对抗性减少了并发性头痛和焦虑.
结论:
- 在vAI-PrL和dAI-ovBNST电路中分离的eCB信号可以抵消并发性头痛和焦虑.
- 针对特定神经回路中的eCB信号,特别是CB1Rs,为同时发生的头痛和焦虑提供了一个有前途的治疗策略.
相关概念视频
Chemotherapy-Induced Nausea and Vomiting: Cannabinoids
651
Tetrahydrocannabinol (THC) is a phytocannabinoid that primarily interacts with the CB1 receptor, a type of G protein-coupled receptor (GPCR) predominantly in and around the chemoreceptor trigger zone (CTZ) and emetic center. THC also blocks the serotonin receptor activity in the dorsal vagal complex (DVC) by inhibiting serotonin release. THC exerts its anti-emetic effects through these interactions, which are beneficial for patients undergoing chemotherapy.
Two synthetic agonists of THC,...
Two synthetic agonists of THC,...
651
Analgesia and Pain Management
1.4K
Pain is critical to various clinical pathologies, provoking an urgent need for effective management. Pain, whether acute or chronic, is a complex neurochemical process. Its alleviation depends on the type, with nonopioid analgesics effective for mild to moderate pain, such as musculoskeletal or inflammatory pain, while neuropathic pain responds best to anticonvulsants, tricyclic antidepressants, or serotonin/norepinephrine reuptake inhibitors. For severe acute or chronic pain, opioids may be...
1.4K
CNS Stimulants: Cocaine, Amphetamines and Cannabinoids
741
CNS stimulants, such as cocaine, amphetamines, and cannabinoids, have varying structures and mechanisms of action that lead to different therapeutic effects and side effects. Cocaine, with its molecular formula C17H21NO4, is a tropane alkaloid and a tertiary amino compound. It has two chemical forms: the hydrochloride salt and the "freebase." The former is in powder form, while the latter involves removing the hydrochloride salt to create a form that can be smoked. Cocaine exerts its...
741
Anxiolytic Drugs: Overview
997
Anxiolytic drugs are vital in managing anxiety disorders by effectively alleviating symptoms such as excessive fear, tachycardia, and tremors. There are several classes of anxiolytic medications, each with unique mechanisms of action and potential side effects.
Primary Types of Anxiolytic Drugs
1. Benzodiazepines:
Benzodiazepines bind to the GABA-A receptor in the brain, enhancing GABA's interaction. This action reduces neurotransmission, effectively blocking anxiety-associated limbic...
Primary Types of Anxiolytic Drugs
1. Benzodiazepines:
Benzodiazepines bind to the GABA-A receptor in the brain, enhancing GABA's interaction. This action reduces neurotransmission, effectively blocking anxiety-associated limbic...
997
Anxiolytic Drugs: Benzodiazepines and Buspirone
2.3K
Benzodiazepines are a class of anxiolytic drugs known for their rapid efficacy and high therapeutic-to-lethal dose ratio, but with a potential risk of drug dependence. These drugs are lipophilic, allowing for rapid absorption after oral administration, eventually reaching the central nervous system (CNS). Once in the CNS, benzodiazepines bind to the allosteric site of the GABAA receptor. This binding enhances the inhibitory effects of the neurotransmitter GABA. By doing so, they prevent...
2.3K
Ligand-Gated Ion Channel Receptor: Gating Mechanism
3.7K
Ligand-gated ion channels are transmembrane proteins that play a vital role in intercellular communication and functions of the nervous system. They allow the influx of ions across the membrane once the neurotransmitter binds, allowing the subsequent transmission of electrical excitation across the neurons. Other ligand-gated ion channels, like the γ-aminobutyric acid (GABA) receptor, permit anions like chloride into the cells on the binding of the GABA molecule. Their entry into the cell...
3.7K


