1)anhydrotetrodotoxin脱水河豚毒素
1.Structure identification and toxicity determination of high-pure anhydrotetrodotoxin高纯脱水河豚毒素的结构表征与毒力测定研究
英文短句/例句
1.Structure identification and toxicity determination of high-pure anhydrotetrodotoxin高纯脱水河豚毒素的结构表征与毒力测定研究
2.Determination of tetrodotoxin in globefish by gas chromatographymass spectrometry河豚鱼中河豚毒素的气相色谱质谱法测定
3.Determination of tetrodotoxin in aquatic products by post column derivation high performance liquid chromatography柱后衍生高效液相色谱法测定水产品中河豚毒素含量
4.Analgesic effect of tetrodotoxin combined with acetylsalicylic acid河豚毒素与阿司匹林的协同镇痛作用
5.Determination of Tetrodotoxin in Rat Plasma;大鼠血浆中河豚毒素的定量检测研究
6.Studies on the Origin of Tetrodotoxin in Gastropod (Nassarius spp.);织纹螺(Nassarius spp.)体内河豚毒素来源的研究
7.Development of a Direct Competitive ELISA Method for Tetrodotoxin Detection河豚毒素直接竞争ELISA检测方法的研究
8.Isolation and Characterization of Tetrodotoxin-producing Bacterial Stains RG-3B6 and RG-33B from the Puffer Fish Fugu Rubripes and Detection of Tetrodotoxin in the Fermentation Production;产河豚毒素菌株RG-3B6、RG-33B的分离纯化及其发酵产物中河豚毒素的检测
9.Preparation of Monoclonal Antibody Against Tetrodotoxin and Development of ELISA Method for Tetrodotoxin;河豚毒素单克隆抗体的制备及ELISA方法的建立
10.Study on Tetrodotoxin and Insecticidal Metabolites from Two Marine Microbes;海洋微生物源河豚毒素和杀虫活性物质的研究
11.Preparation of Tetrodotoxin Immimogen and Establishment of Characterization System河豚毒素免疫抗原的制备及其表征体系的建立
12.Study on quantitative determination of tetrodotoxin by high performance liquid chromatography-fluorescent detection河豚毒素的高效液相/荧光精确定量技术研究
13.Rapid Determination of Tetrodotoxin in Human Urine and Plasma Using Hydrophilic Interaction Liquid Chromatography Coupled with Triple Quadrupole Mass Spectrometry亲水液相色谱三重四极杆质谱联用法快速检测尿液和血浆中河豚毒素
14.Effects of polypeptide purified from Buthus martensi Karsch on tetrodotoxin-sensitive sodium channels in rat dorsal root ganglion neurons东亚钳蝎毒素多肽对河豚毒素敏感型钠电流的作用
15.Any of various prickly, often poisonous, chiefly marine fishes of the family Tetraodontidae that are capable of puffing up by swallowing water or air.河豚河豚科的任几种有刺且通常有毒的海鱼,吞入水或空气后可以使身体胀大
16.Protective Effects of Cardioplegia with Sodium Channel Inhibitor Tetrodotoxin (TTX) on Ischemia/Reperfusion Myocardium of Isolated Rat Hearts;河豚毒素心脏停搏液用于离体大鼠心肌保护的实验研究
17.Optimizing the Method of ELISA for Detecting Tetrodotoxin and Preparing the Kit for Detecting Tetrodotoxin;河豚毒素ELISA检测方法的优化与检测试剂盒的研发
18.Study on Application of Membrane Separation Technology in Purification and Concentration of Tetrodotoxin;膜分离技术在河豚毒素纯化及浓缩中的应用研究
相关短句/例句
desoxyteterodotoxin脱氧河豚毒素
3)tetrodotoxin[英][,tetr?u't?ksin][美][t?,trod?'tɑks?n]河豚毒素
1.Determination of tetrodotoxin in aquatic products by post column derivation high performance liquid chromatography;柱后衍生高效液相色谱法测定水产品中河豚毒素含量
2.Determination of tetrodotoxin by RP-IP-HPLC;反相离子对-高效液相色谱法测定河豚毒素
3.Effects of high-purity tetrodotoxin on compound action potential of sciatic nerve isolated from frog;高纯河豚毒素对蛙坐骨神经动作电位的影响
4)TTX河豚毒素
1.Extraction of TTX with Absorbent and Ion Exchange Resin;联合采用吸附树脂与离子交换树脂提取河豚毒素
2.Cnstruction,expression and activity analysis of ScFv against TTX抗河豚毒素单链抗体基因的构建、表达及活性分析
3.Methods:24 Wistar rats were randomly divided into 3 groups(n=8):Control group,STH-2 group and TTX group.Thomas和河豚毒素(Tetrodotoxin,TTX)两种心脏停搏液对缺血再灌注大鼠心肌细胞凋亡及凋亡相关蛋白表达的影响。
5)tetrodotoxin[英][,tetr?u't?ksin][美][t?,trod?'tɑks?n]河豚鱼毒素
1.Determination of tetrodotoxin in swell by capillary zone electrophoresis;高效毛细管区带电泳检测河豚鱼中河豚鱼毒素
6)tetrodotoxin[英][,tetr?u't?ksin][美][t?,trod?'tɑks?n]河豚毒素(TTX)
延伸阅读
河豚毒素(详)河豚毒素(tetrodotoxin,ttx)是最早发现的海洋生物毒素之一,是由鱼类分离提取的非蛋白剧毒毒素。平时国内外每年都有不少因食河豚鱼中毒而死亡者。因其毒性剧烈,性质稳定,且国外已能人工化学合成,故引起国外军界的高度重视。美、前苏联军队早已将其列入化学战计划。top一、化学结构与理化性质河豚毒素是一种氨基全氢化喹唑啉化合物,分子式为c11h17n3o8,分子量为319。该毒素为无色针状结晶,熔点为220℃,继续加温则分解。与酸作用可生成盐,如氢卤酸盐、酒石酸盐等。河豚毒素的水溶液呈中性,易溶于稀酒精,而难溶于纯酒精,不溶于醚、氯仿、苯及二硫化碳,其与生物碱试剂不发生任何沉淀和颜色反应。河豚毒素对热与酸的作用非常稳定,在15磅加压锅内加热2小时始失去毒性,但遇碱不稳定,易被破坏。top二、中毒途径与毒性河豚毒素性质稳定,可使水源和食物等长期染毒,易经消化道吸收中毒。分散呈气溶胶状态的河豚毒素,亦可通过呼吸道吸入中毒。河豚毒素的毒性大大超过包括有机磷毒剂在内的所有合成毒剂,它比氰化钠的毒性大1250倍,其对动物的毒性见表6-1。表6-1 河豚毒素对各种动物的毒性动 物给药途径最小致死剂量(μg/kg)大鼠皮下2.7豚鼠皮下4.5小鼠皮下8.0家兔皮下8.0家兔静脉3.0狗皮下9.0猫皮下10.0河豚毒素对人的致死剂量为6~7μg/kg体重。它是有效的呼吸抑制剂,在0.5~3μg/kg体重时,就可使动物突然出现呼吸停止。河豚毒素还是极强的催吐剂,给犬静脉注射0.3μg/kg,皮下或肌肉注射0.7μg/kg,就能诱发剧烈呕吐。top三、中毒机理河豚毒素是细胞膜钠离子通道选择性阻断剂。细胞膜钠离子通道的阻断,导致细胞膜去极化,从而特异性地干扰了神经一肌肉的传导过程。体外实验证明,河豚毒素对细胞膜上某些部位有非常强的亲和力,即使是非常稀的溶液(10–8m),细胞膜表面上每平方微米仅吸附几十分子,就可以完全暂时性中断钠离子流透入细胞膜,而钠离子流对神经一肌肉兴奋是必须的,然而稳定状态的钾离子流(它对静止状态的膜是重要的)则完全不受影响。有证据说明,河豚毒素的胍基对阻断钠离子通道起决定性作用。深入研究表明,河豚毒素对细胞膜的作用过程,并不是简单的“分子嵌塞作用”,而是通过毒素与膜上专一性受体结合。再通过关闭机制(gating mechanism)使通道关闭,河豚毒素作用于毒素受体(rtox),可使h闸门(h—gate)关闭,阻滞钠离子通过细胞膜,使细胞膜失去极化状态,从而抑制甚至阻断了神经一肌肉的传导过程,导致神经肌肉活动障碍,严重者可发生麻痹状态。类似箭毒样作用,最后可引起呼吸中枢麻痹使呼吸停止,血管中枢麻痹,可引起血压下降,脉搏迟缓。最终因呼吸停止和循环衰竭而死亡。河豚毒素中毒主要表现为神经中枢和神经末梢的麻痹。一般先是感觉神经麻痹,继而运动神经麻痹,使肢体无力甚至不能运动。血管中枢麻痹引起血压下降,脉搏迟缓。呼吸中枢麻痹导致呼吸停止而死亡。此外,河豚毒素还可作用于胃肠道粘膜,引起急性胃肠炎症状。并能抑制去甲肾上腺素的释放。河豚毒素是神经细胞膜药物研究的标准工具药,临床上用于治疗各种神经肌肉痛、创伤及癌痛,肠胃及破伤风痉挛等。也用于局部麻醉药及神经性汉森(hansen)型疾病等。top四、临床表现潜伏期短,一般为30分钟至3小时,病程发展迅速。中毒者首诉局部皮肤“麻或刺痛感”,以后延及手指及脚趾,再到四肢的其他部位,麻感逐渐加重。有些患者沂说身体好象有“漂浮”感。1.神经系统:口唇、舌尖麻木,舌和喉咙苍白,并且有蚁走和辛辣感,继则全身麻木,肌肉颤搐,共济失调,四肢无力瘫痪,最后进入广泛的肌肉麻痹:咽和喉最先麻痹,导致失音和吞咽困难,以后语言能力丧失,最后眼球固定,且常伴以惊厥。