国际麻醉学与复苏杂志   2012, Issue (10): 6-6
    
内源性大麻素系统调节瘙痒的研究进展
刘秀兰, 上官王宁1()
1.温州医学院附属第二医院附属育英儿童医院
Progress of the regulation of endocannabinoid system on pruritus
 全文:
摘要:

背景 很多药物和疾病都能引起瘙痒,但目前有关瘙痒的病理生理学还不完全清楚。研究发现,内源性大麻素系统在调节瘙痒中起着重要的作用,影响着瘙痒的发生与发展。 目的 就近年来国内外有关内源性大麻素系统调节瘙痒的文献作一综述。 内容 大麻素受体1(cannabinoid receptor 1,CB1)激动剂缓解瘙痒,拮抗剂诱发瘙痒。大麻素受体2(cannabinoid receptor 2,CB2)拮抗剂、内源性大麻素类化合物和脂肪酰胺水解酶(fatty acid amide hydrolase, FAAH)间接抑制瘙痒。此外,内源性大麻素的止痒作用可能部分是通过瞬时受体电位香草类受体(transient receptor potential vanilloid type, TRPV)介导的。趋向 内源性大麻素系统可能成为将来各种病因学全身性瘙痒的止痒靶点,但其调节瘙痒的机制还不十分清楚,需要进一步的研究和探讨。

关键词: 瘙痒;内源性大麻素系统
Abstract:

Background Pruritus can be caused by numerous drugs and diseases, but the pathogenesis of pruritus is still not clearly elucidated. It has been shown that the endocannabinoid system plays an important role in regulating pruritus and influences the occurrence and development of pruritus. Objective To review home and abroad literatures relating to the regulation of endocannabinoid system on pruritus in recent years. Content Cannabinoid receptor 1 agonist reduces pruritus while its antagonist induces pruritus. Cannabinoid receptor 2 antagonist, endocannabinoids simiar compounds and fatty acid amide hydrolase indirectly inhibit pruritus. Furthermore the antipruritic effect of endocannabinoids may be partly mediated by transient receptor potential vanilloid type. Trend The endocannabinoid system could serve as antipruritic targets for different etiology of itch, but the mechanisms via which the endocannabinoid system regulate pruritus remains unclear, requiring further study and discussion.

Key words: Pruritus; Endocannabinoid system