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4篇 您的检索式:作者名="Paul F REID"
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1A long-form α-neurotoxin from cobra venom produces potent opioid-independent analgesia显示文摘Aim:In light of the antinociceptive activity of the short-chain neurotoxin,cobrotoxin,and other acetylcholine antagonists,the antinociceptive activity andmechanisms of cobratoxin(CTX),a long-chain postsynaptic α-neurotoxin,wasinvestigated in rodent pain models.Methods:CTX was administered intraperito-neally(30,45,68 μg/kg),intra-cerebral ventricularly(4.5 μg/kg)or microinjectedinto periaqueductal gray(PAG;4.5 μg/kg).The antinociceptive action was testedusing the hot-plate and acetic acid writhing tests m mice and rats.The involve-ment of the cholinergic system and opioid system in CTX-induced analgesia wasexamined by pretreatment of animals with atropine(0.5 mg/kg,im;or 10 mg/kg,ip)or naloxone(1 and 5 mg/kg,ip).The effect of CTX on motor activity was testedusing the Animex test.Results:CTX exhibited a dose-dependent analgesic ac-tion in mice as determined by both the hot-plate and acetic acid writhing tests.The peak effect of analgesia was seen 3 h after administration.In the mouse aceticacid writhing test,the intra-cerebral ventricular administration of CTX at 4.5 μg/kg(1/12th of a systemic dose)produced marked analgesic effects.Microinjection ofCTX(4.5 μgkg)into the PAG region did not elicit an analgesic action in rats in thehot-plate test.Atropine at 0.5 mg/kg(im)and naloxone at 1 and 5 mg/kg(ip)bothfailed to block the analgesic effects of CTX,but atropine at 10 mg/kg(ip)didantagonize the analgesia mediated by CTX in the mouse acetic acid writhing test.Acetylsalicylic acid(300 mg/kg)did not enhance the analgesic effects of CTX.Atthe highest effective dose of 68 μg/kg the neurotoxin did not change the sponta-neous mobility of mice.Conclusion:CTX has analgesic effects,which are medi-ated in the central nervous system though not through the PAG.The centralcholinergic system but not opioid system appears to be involved in theantinociceptive action of CTX.Zhi-xin CHEN Hui-ling ZHANG Zhen-lun GU Bo-wen CHEN Rong HAN Paul F REID Laurence N RAYMOND Zheng-hong QIN 2006Acta Pharmacologica Sinica2006,27,4:7
2Suppression of complete Freund's adjuvant-induced adjuvant arthritis by cobratoxin显示文摘Yan-li LIU Hai-ming LIN Rong ZOU Jun-chao WU Rong HAN Laurence N RAYMOND Paul F REID Zheng-hong QIN 2009Acta Pharmacologica Sinica2009,30,2:6
3Involvement of cholinergic system in suppression ot formalin-induced inflammatory pain by cobratoxin显示文摘瞄准: 调查 cobratoxin (CTX ) 的止痛效果,长链的 α从泰国眼镜蛇恶意的神经毒素,在导致福尔马林的煽动性的疼痛的一个老鼠模型。Gao-na SHI Yan-li LIU Hai-ming LIN Shi-lin YANG Yu-lin Feng Paul F REID Zheng-hong QIN 2011Acta Pharmacologica Sinica2011,32,10:6
4一氧化氮合酶抑制剂对cobratoxin镇痛作用的影响显示文摘目的探讨一氧化氮合酶(NOS)抑制剂与cobratoxin(CTX)镇痛作用间的关系。方法采用小鼠醋酸致痛和热板致痛实验方法,观察NOS抑制剂氮-单甲基-左旋精氨酸(L-NMMA)对CTX镇痛作用的影响。结果在小鼠醋酸致痛和热板致痛实验中,腹腔注射(ip)CTX(30、45、68μg/kg)呈剂量依赖性的镇痛作用,L-NMMA(5、10mg/kg,ip)与CTX(45μg/kg)合用,对后者表现出剂量依赖性的镇痛促进作用。结论CTX(ip)的镇痛作用呈剂量依赖性,L-NMMA(ip)与CTX合用,对CTX表现剂量依赖性的镇痛促进作用,提示CTX的镇痛和NOS抑制剂之间存在一定的相互作用。董雁 刘艳丽 Paul F Reid 秦正红 2009苏州大学学报(医学版)2009,29,5:0
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