摘要
目的:观察小剂量纳络酮(naloxone,N)对阿片受体(部分)激动剂镇痛效应的影响。方法:将小鼠分为芬太尼(fenta-nyl,F)、瑞芬太尼(remifentanil,R)及布托啡诺(butorphanol,B)3大组,每组再分为4小组:即F+NS组、F+N(100,10,1ng)组,R+NS组、R+N(100,10,1ng)组以及B+NS组、B+N(100,10,1ng)组。用热板实验和扭体实验观察纳络酮对以上药物镇痛小鼠热板实验痛阈(painthresholdin hot-plate test,HPPT)和扭体次数的影响。结果:分别与F+NS组、R+NS组或B+NS组比较,F+N(10ng)组、R+N(100,10,1ng)组的HPPT增高(P<0.05),但B+N(100,10,1ng)组的HPPT未出现显著变化(P>0.05);F+N(100,10ng)组、R+N(100,10,1ng)组、B+N(10ng)组小鼠扭体次数均减少(P<0.05或P<0.01)。结论:小剂量纳络酮能够增强阿片受体(部分)激动剂的镇痛效应。
OBJECTIVE To observe the influence of low-dose naloxone(N) on the pain-killing effect of opium receptor (partial) agonist, METHODS The mice were divided into the three main groups of fentanyl(F), remifentanil(R) and butorphanol (B) and each group was divided into 4 sub-groups: F + NS group, F + N(100,10,1 ng)group, R + NS group, R + N(100,10,1 ng) group and B+ NS group, B+ N(100,10, 1 ng)group. Hot plate test and stretching experiment were used to observe the effect on the pain threshold in hot-plate test(HPPT) and times of stretching of mice which used the above opium receptor agonist and naloxone. RESULTS Respectively compared with F+ NS group, R+ NS group or B+ NS group, the HPPT of F+ N (10 ng) group, R+ N(100,10,1 ng)group increased (P〈0. 05), but the HPPT of B+ N(100, 10,1 ng)group had no marked change (P〉0. 05) ;The stretching numbers of mice of F+ N(100,10 ng) group, R + N (100,10,1 ng) group, B+ N (10 ng) group decreased (P〈0. 05 or P〈0. 01). CONCLUSION Low-dose naloxone can increase the pain-killing effect of opium receptor (partial) agonist.
出处
《中国医院药学杂志》
CAS
CSCD
北大核心
2009年第18期1511-1513,共3页
Chinese Journal of Hospital Pharmacy
基金
国家自然科学基金资助项目(编号:30872432
30471657
39970715)
江苏省自然科学基金资助项目(编号:BK200143)
2007年江苏省高等学校大学生实践创新训练计划项目(编号:396
404)
关键词
纳络酮
阿片受体激动剂
部分激动剂
镇痛
联合用药
热板实验
扭体实验
naloxone
opium receptor agonist
partial agonist
pain-killing
combined medication
hot plate test
stretching experiment