维生素E:黑兵的一种助手,可以减少的积累和毒性
Zhihui Shi1, Yujia Wan1, Miao Peng1
1Hubei International Scientific and Technological Cooperation Base of Waste Conversion by Insects, Huazhong Agricultural University, Wuhan 430070, China.
Environment international
|March 8, 2024
概括
维生素E (VE) 的预处理增强了黑兵 (BSF) 幼虫对有毒 (Cd) 暴露的耐受性. 通过调节金属氨酸和抗氧化剂防御,VE可降低Cd含量和毒性.
科学领域:
- 环境毒理学环境毒理学
- 昆虫生理学 昆虫生理学
- 生物修复是一种生物修复.
背景情况:
- (Cd) 是一种有毒的重金属,对人类和动物健康构成风险.
- 黑兵 (BSF) 幼虫可以从牲畜中积累Cd,引发人们对食物链污染的担忧.
- 以前的研究表明,维生素E (VE) 在BSF的Cd耐受性中可能发挥作用.
研究的目的:
- 为了研究外源维生素E (VE) 对黑士兵 (BSF) 幼虫的 (Cd) 毒性的保护作用.
- 为了阐明在BSF中介于VE的Cd耐受性的潜在机制.
主要方法:
- 黄蜂幼虫被预先处理了不同度的外源VE.
- 在不同度 (300和700毫克/公斤) 的Cd暴露.
- 评估了Cd含量,毒性,金属氨酸 (MT) 含量,氧化损伤标志物 (8-氧化氨酸,氨酸) 和抗氧化能力 (总抗氧化能力,过氧化酶活性).
主要成果:
- VE预处理显著增加了幼虫的体重,并降低了Cd含量和毒性.
- 即使在高Cd度下,VE预处理也可以将Cd毒性降低84%以上.
- VE预处理减少了氧化损伤和增加了抗氧化能力,与改变的MT水平有关.
结论:
- 外源维生素E在增强昆虫对暴露的防御机制方面发挥着至关重要的作用.
- VE 预处理为减轻 BSF 幼虫中 Cd 毒性提供了一个有希望的策略.
- 这一发现为预防和治疗昆虫和潜在的污染环境中Cd诱导的损害提供了新的方法.
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