首页> 外文期刊>Marine Environmental Research >Tetrodotoxin and saxitoxin in two native species of puffer fish, Sphoeroides marmoratus and Lagocephalus lagocephalus, from NE Atlantic Ocean (Madeira Island, Portugal)
【24h】

Tetrodotoxin and saxitoxin in two native species of puffer fish, Sphoeroides marmoratus and Lagocephalus lagocephalus, from NE Atlantic Ocean (Madeira Island, Portugal)

机译:来自大西洋东北部(葡萄牙马德拉岛)的河豚的两个本地物种河豚(Sphoeroides marmoratus和Lagocephalus lagocephalus)的河豚毒素和虎毒素

获取原文
获取原文并翻译 | 示例
       

摘要

The presence in EU waters of invasive tetrodotoxin (TTX) -harbouring puffer fishes has been receiving increasingly attention due to potential new threats posed by this potent neurotoxin. The present study investigates the occurrence of tetrodotoxin, saxitoxin (STX), and their analogues in two native puffer fish species from the NE Atlantic. High TTX content was detected by LC-MS/MS in several tissues of the Guinean puffer Sphoeroides marmoratus from Madeira Island (Portugal), reaching concentrations as high as 15 mg TTX kg(-1) in the digestive tract of a male specimen and 7.4 mg TTX kg(-1) in gonads of a female specimen. Several TTX analogues were also detected, including the 4-epi-TTX, 4,9-Anhydro-TTX, 5- 11- deoxyTTX and 6,11-dideoxyTTX. Although at low levels, STX was detected in liver of the Oceanic puffer Lagocephalus lagocephalus. Trace levels of decarbamoylsaxitoxin (dcSTX) were also observed in L. lagocephalus. This study reports the presence of TTX and STX in native fish from EU waters, highlighting the need for a proper understating of the origin, distribution and fate of these toxins in NE Atlantic.
机译:由于这种强效神经毒素可能会带来新的威胁,因此在欧盟水域中,携带侵入性河豚毒素(TTX)的河豚受到了越来越多的关注。本研究调查了东北大西洋的两种本地河豚鱼中河豚毒素,虎毒素(STX)及其类似物的发生。通过LC-MS / MS在来自葡萄牙马德拉岛的几内亚河豚的数个组织中检测到高TTX含量,在男性标本的消化道中浓度高达15 mg TTX kg(-1),而7.4 mg TTX kg(-1)在雌性标本的性腺中。还检测到几种TTX类似物,包括4-epi-TTX,4,9-脱水-TTX,5-1-11-脱氧TTX和6,11-脱氧TTX。尽管水平较低,但在大洋河豚Lagocephalus lagocephalus的肝脏中检测到了STX。在人头参中也观察到痕量的脱氨甲酰基萨克毒素(dcSTX)。这项研究报告了欧盟水域的天然鱼类中存在TTX和STX,这突显了需要适当低估这些毒素在东北大西洋的起源,分布和命运。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

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