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甩尾測痛儀主要是用于測量大、小鼠尾巴部受紅外熱刺激的痛覺閾值。實驗時,當動物感覺疼痛,尾巴會輕敲臺面,內(nèi)置傳感器會立刻檢測到,停止計時和關(guān)閉光源,即儀器自動記錄反應(yīng)時間和光源強度。數(shù)據(jù)可通過U盤、USB數(shù)據(jù)線等導出。
甩尾測痛儀中有一可調(diào)強度的紅外光源,其紅外光主要是通過一拋物面反射鏡聚焦在實驗動物的尾巴上。實驗時,操作人員將實驗動物置于儀器上,把動物的尾巴放在紅外光源處,接受刺激。 特征 儀器自動記錄實驗數(shù)據(jù) 精度高,避免人為因素引起的誤差 包含U盤和軟件 優(yōu)點
儀器自動記錄實驗數(shù)據(jù)
精度高,避免人為因素引起的誤差
包含U盤和軟件
可獨立工作,也可連接電腦使用
儀器工作臺表面無突出和遮擋物件
操作方便,實驗重復性好
打?。何⑿蜔崦舸蛴C(需另外購買) 工作溫度:15° - 30° C 開始:紅外開關(guān) 聲級:< 70 dB 紅外強度:10-99級間可調(diào) 反應(yīng)時間:液晶屏顯示,分辨率為0.1s 校準:紅外熱輻射計(需另外購買) 截止時間:預置,15 - 60 s間 文獻 關(guān)于方法 - F.E. D’Amour & D.L. Smith: "A Method for Determining Loss of Pain Sensation." J. Pharmacol. Exp. Therap. 72: 74-79, 1941. - D.C. Yeomans & H.K. Proudfit: “Characterization of the Foot Withdrawal Response to Noxious Radiant Heat in the Rat”Pain 59: 85-97, 1994. 涉及疼痛甩尾 - C. Dawson et alia: “ Dexmedetomidine Enhances Analgesic Action of Nitrous Oxide” Anesthesiology 100 (4): 894?904, 2004 - P. Tolu et alia: “ Effects of Long-Term Acetyl-L-carnitine Administation in Rats: I. Increased Dopamine Output in Mesocorticolimbic Areas and Protection Toward Acute Stress Exposure” Neuropsychopharmacol. 27 (3): 410-420, 2002 - R. Nadeson et alia: “ Potentiation by Ketamine of Fentanyl Antinociception. I. An Experimental Study in Rats Showing that Ketamine Administered by Non-Spinal Routes Targets Spinal Cord Antinociceptive Systems” Br. J. Anaesthesia 88 (5): 685?691, 2002 - L. Jasmin et alia: “ The NK1 Receptor mediates Both the Hyperalgesia and the Resistance to Morphine in Mice Lacking Noradrenaline” PNAS 99 (2): 1029?1034, 2002 - G.L. Fraser et alia: “ Antihyperalgesic Effects of Opioid Agonists in a Rat Model of Chronic Inflammation” Br. J. Pharmacol. 129: 1668?1672, 2000 - M. Xu et alia: “ Effects of Radolmidine, a Novel α2- Adrenergic Agonist Compared with Dexmedetomidine in Different Pain Models in the Rat” Anesthesiology 93 (2): 473?481, 2000 - A. K?ster et alia: “Targeted Disruption of the Orphanin Fq/Nociceptin Gene Increases Stress Susceptibility and Impairs Stress Adaptation In Mice” Neurobiology 96 (18): 10444-10449, 1999 - I. Sora et alia: “Opiate Receptor Knockout Mice Define μ Receptor Roles in Endogenous Nociceptive Responses and Morphine-Induced Analgesia” Neurobiology 94: 1544-1549, 1997 - C.T. Dourish et alia: "The Selective CCK-B Receptor Antagonist L-365,260 Enhances Morphine Analgesia and Prevents Morphine Tolerance in the Rat" Europ. J. Pharmacol. 176: 35-44, 1990 - P.W. Nance & J. Sawinok: "Substance P-Induced Long-Term Blockade of Spinal Adrenergic Analgesia: Reversal by Morphine and Naloxone" J. Pharmacol. Exp. Therap. Vol. 240, No. 3: 972-977,
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