Site and mechanism of morphine tolerance in the gastrointestinal tract.

Site and mechanism of morphine tolerance in the gastrointestinal tract.
复制标题

DOI:
10.1111/nmo.12443
复制
发表时间:
2014-10
影响因子:
3.5
通讯作者:
Dewey WL
Dewey WL
中科院分区:
医学3区
文献类型:
--
作者:
Akbarali HI;Inkisar A;Dewey WL

文献摘要

参考文献

被引文献

相似文献

阿片类药物引起的便秘是一个主要的临床问题。吗啡和其他麻醉剂对胃肠道的影响在长期使用中持续存在,因此限制了这些优秀止痛药的临床益处。阿片类药物(包括吗啡)在肠道中的作用主要由肠神经元索马和神经末梢上的μ-阿片受体介导。最近的研究表明,急性和慢性吗啡在胃肠道沿着存在区域差异。虽然在重复给予吗啡后对镇痛作用和上消化道运动产生耐受性,但在结肠中不产生耐受性,慢性阿片类药物导致持续性便秘。在这里,我们审查的机制,耐受性的发展在小肠,而不是大肠。胃肠道各段中μ阿片受体的信号传导和调节存在区域差异。β-arrestin 2在中枢神经元和肠神经元之间的耐受性发展中的不同作用定义了开发具有镇痛特性和最小便秘效应的配体的治疗方法的潜力。
Opioid-induced constipation is a major clinical problem. The effects of morphine, and other narcotics, on the gastrointestinal tract persist over long-term use thus limiting the clinical benefit of these excellent pain relievers. The effects of opioids in the gut, including morphine, are largely mediated by the μ-opioid receptors at the soma and nerve terminals of enteric neurons. Recent studies demonstrate that regional differences exist in both acute and chronic morphine along the gastrointestinal tract. While tolerance develops to the analgesic effects and upper gastrointestinal motility upon repeated morphine administration, tolerance does not develop in the colon with chronic opioids resulting in persistent constipation. Here, we review the mechanisms by which tolerance develops in the small but not the large intestine. The regional differences lie in the signaling and regulation of the μopioid receptor in the various segments of the gastrointestinal tract. The differential role of β-arrestin2 in tolerance development between central and enteric neurons defines the potential for therapeutic approaches in developing ligands with analgesic properties and minimal constipating effects.
DOI: 10.1016/j.ejphar.2012.04.001
发表时间: 2012-06-15
影响因子: 5
作者:
Maguma, Hercules T.;Dewey, William L.;Akbarali, Hamid I.
通讯作者: Akbarali, Hamid I.
DOI: 10.1124/jpet.111.186320
发表时间: 2012-03-01
影响因子: 3.5
作者:
Kang, Minho;Maguma, Hercules T.;Akbarali, Hamid I.
通讯作者: Akbarali, Hamid I.
DOI: 10.1111/j.1471-4159.2007.05057.x
发表时间: 2008-02-01
影响因子: 4.7
作者:
Oldfield, Sue;Braksator, Ellen;Kelly, Eamonn
通讯作者: Kelly, Eamonn
DOI: 10.1111/nmo.12387
发表时间: 2014-10-01
影响因子: 3.5
作者:
Ono, H.;Nakamura, A.;Kanemasa, T.
通讯作者: Kanemasa, T.
DOI: 10.1126/science.286.5449.2495
发表时间: 1999-12-24
期刊: SCIENCE
影响因子: 56.9
作者:
Bohn, LM;Lefkowitz, RJ;Lin, FT
通讯作者: Lin, FT