吗啡耐受增加福尔马林致痛大鼠脊髓Fos和NADPH-d阳性神经元的表达

被引:5
作者
曹君利
曾因明
张励才
段世明
机构
[1] 徐州医学院附属医院麻醉科,徐州医学院附属医院麻醉科,江苏省麻醉学重点实验室!徐州,江苏省麻醉学重点实验室!徐州
关键词
吗啡; 耐受; Fos-LI; 一氧化氮合酶(NOS);
D O I
暂无
中图分类号
Q426 [中枢神经系统的生理];
学科分类号
071006 ;
摘要
运用Fos免疫组织化学、NADPH d组织化学及Fos/NADPH d双标技术 ,研究了吗啡耐受对福尔马林致痛大鼠脊髓Fos、NADPH d阳性及Fos/NADPH d双标神经元表达的影响。结果观察到 :在非吗啡耐受大鼠 ,福尔马林诱发的Fos likeimmunoreactivity (Fos LI)主要分布在同侧脊髓背角浅层和颈部 ,急性静注吗啡可减少Fos LI表达 ;长时间应用吗啡导致福尔马林诱发的Fos LI明显增加 ,且在同侧脊髓全层和对侧脊髓均有分布 ,急性静注吗啡不能抑制Fos LI表达。吗啡耐受增加福尔马林致痛大鼠脊髓背角浅层NADPH d阳性神经元、纤维及终末的表达。吗啡耐受大鼠福尔马林诱发的Fos/NADPH d双标神经元明显增多 ,在同侧脊髓全层和对侧脊髓浅层均有分布。上述结果提示 ,NO参与了吗啡耐受导致的脊髓背角神经元敏感化。
引用
收藏
页码:235 / 238
页数:4
相关论文
共 7 条
[1]  
The NMDA receptor antagonists, LY 2764614 and MK 801, and the nitric oxide synthase inhibitor NG-Nitro-L-arginine, attenuate analgesic tolerance to the mu-opioid morphine but not to kappa opioids. Elliott K,Minamlni N,Koiesnikov Y et al. Pain . 1993
[2]  
Inhibition of nitric oxide synthase enhances antinociception mediated by mu,delta and kappa opioid receptors in acute and prolonged pain in the rat spinal cord. Halina M,Dominika L,Ryszard P et al. Journal of Pharmacology and Experimental Therapeutics . 1997
[3]  
Formalin-evoked fos expressing is enhanced in morphine-tolerant rats. Rohde DS,Detweiler DJ,Bashaum AI et al. Brain Research . 1997
[4]  
Repetitive opioid abstinence causes progressive hyperalgesia sensitive to N-methl-D-aspartate receptor in the rat. Dunber SA,Pulai LJ. Journal of Pharmacology and Experimental Therapeutics . 1998
[5]  
NG-Nitro-Larginine methyl ester exhibits antinociceptive activity in the mouse. Moore PK,Oluyomi AO,Babbedge RC et al. British Journal of Pharmacology . 1991
[6]  
Molecular biology of pain. Munglani R,Hunt SP. British Journal of Anaesthesia . 1995
[7]  
Nitric oxide and opioid tolerance. Babey AM,Kolesnikov Y,Cheng J et al. Neuropharmacology . 1994