首页> 美国卫生研究院文献>Toxins >Toxicity and Toxin Composition of the Greater Blue-Ringed Octopus Hapalochlaena lunulata from Ishigaki Island Okinawa Prefecture Japan
【2h】

Toxicity and Toxin Composition of the Greater Blue-Ringed Octopus Hapalochlaena lunulata from Ishigaki Island Okinawa Prefecture Japan

机译:日本冲绳县石垣岛大蓝环章鱼Hapalochlaena lunulata的毒性和毒素组成

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务,本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文,但由于OA文献来源多样且变更频繁,仍可能出现获取不到、文献不完整或与标题不符等情况,如果获取不到我们将提供退款服务。请知悉。

摘要

The toxicity of the greater blue-ringed octopus Hapalochlaena lunulata, whose bite is fatal to humans, was examined to better understand and prevent deaths from accidental bites. Living specimens were collected from tide pools on Ishigaki Island, Okinawa Prefecture, Japan, in November and December of 2015, 2016, and 2017. The specimens were examined for the anatomical distribution of the toxicity, which was expressed in terms of mouse units (MU), by the standard bioassay method for tetrodotoxin (TTX) in Japan. Paralytic toxicity to mice was detected in all of the soft parts. The posterior salivary glands exhibited the highest toxicity score with a maximum level of 9276 MU/g, which was classified as “strongly toxic” (more than 1000 MU/g tissue) according to the classification of toxicity established by the Ministry of Health, Labor and Welfare of Japan, followed by the hepatopancreas (21.1 to 734.3 MU/g), gonads (not detectable to 167.6 MU/g), arms (5.3 to 130.2 MU/g), and other body areas (17.3 to 107.4 MU/g). Next, the toxin from the salivary glands was partially purified by a Sep-Pak C18 cartridge and an Amicon Ultra Centrifugal Filter with a 3000-Da cut-off, and analyzed by liquid chromatography-mass spectrometry (LC-MS) equipped with a φ2.0 × 150-mm (5 μm) TSKgel Amide-80 column (Tosoh, Tokyo, Japan) with a mixture of 16 mM ammonium formate buffer (pH 5.5) and acetonitrile (ratio 3:7, v/v) as a mobile phase. This study aimed to clarify the toxicity and the composition of TTX and its derivatives in this toxic octopus. The main toxin in this toxic octopus was identified as TTX, along with 4-epi TTX, 4, 9-anhydroTTX and 6-epi TTX. Further, the toxicity of this species is also significant from a food hygiene point of view.
机译:为了更好地理解和防止意外咬伤死亡,已对叮咬对人有致命影响的蓝色环状章鱼Hapalochlaena lunulata的毒性进行了研究。分别于2015年11月和12月,2016年和2017年从日本冲绳县石垣岛的潮汐池中收集活体标本。检查了标本的毒性解剖结构,以小鼠单位(MU ),采用日本河豚毒素(TTX)的标准生物测定方法。在所有柔软的部位都检测到了对小鼠的麻痹性毒性。唾液后腺表现出最高的毒性评分,最高值为9276 MU / g,根据厚生劳动省的毒性分类,被归类为“强毒性”(超过1000 MU / g组织)。日本的福利,其次是肝胰腺(21.1至734.3 MU / g),性腺(无法检测到167.6 MU / g),手臂(5.3至130.2 MU / g)和其他身体部位(17.3至107.4 MU / g) )。接下来,唾液腺中的毒素通过Sep-Pak C18色谱柱和截留值为3000Da的Amicon超离心过滤器进行部分纯化,并通过配备φ2的液相色谱-质谱法(LC-MS)进行分析.0×150 mm(5μm)TSKgel Amide-80色谱柱(Tosoh,Tokyo,Japan),含16 mM甲酸铵缓冲液(pH 5.5)和乙腈(比例3:7,v / v)的混合物相。这项研究的目的是弄清TTX及其衍生物在这种有毒章鱼中的毒性和组成。该有毒章鱼的主要毒素被鉴定为TTX,以及4-epi TTX,4、9-anhydroTTX和6-epi TTX。此外,从食品卫生的角度来看,该物种的毒性也很重要。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号