在没有氧化应激的情况下,氧化三环素诱导的炎症过程在蓝Mytilus trossulus中发生
Anna Hallmann1, Dagmara Leszczyńska1, Aleksandra Czumaj1
1Department of Pharmaceutical Biochemistry, Medical University of Gdańsk, Gdańsk, Poland.
概括
蓝的氧化特环素 (OTC) 暴露并没有引起氧化应激,但增加了氧化酶活性和改变了基因表达. 这表明抗生素治疗对非目标海洋生物的影响,而不是自由基损害.
科学领域:
- 环境毒理学环境毒理学
- 海洋生物学 海洋生物学
- 生态毒理学 生态毒理学
背景情况:
- 药品,包括抗生素,如氧基环素 (OTC),在海洋环境中普遍存在.
- 这些化合物对非目标海洋生物构成风险,例如蓝 (Mytilus trossulus).
- 了解OTC对海洋无脊椎动物的生理影响对于评估环境风险至关重要.
研究的目的:
- 为了研究100μg/L的氧化环素 (OTC) 对Mytilus trossulus的影响.
- 评估潜在的氧化应激诱导,细胞解毒和多基因生物耐药性.
- 检查芳酶效率和双动物整体健康状况的变化.
主要方法:
- 对Mytilus trossulus暴露于100μg/L的氧化四环素 (OTC).
- 在血液淋巴细胞中测量氧化酶活性.
- 对主要体蛋白 (MVP) 和核因子kappa B-a (NF-κB) 的基因表达分析.
- 甲状腺病理学检查,消化系统和地幔.
主要成果:
- 场外暴露没有诱导氧化应激或影响排毒基因表达.
- 氧化酶活性显著增加在OTC暴露的贝中.
- 场外暴露导致MVP的组织依赖上调和NF-κB的下调.
- 组织病理学揭示了多种组织的回归和炎症变化.
结论:
- 在Mytilus trossulus中,暴露于氧化三环素 (OTC) 引起了一种与氧化应激不同的反应.
- 观察到的变化表明在非标海洋生物中具有典型的抗生素治疗效果.
- 该研究强调需要进一步研究抗生素对海洋生态系统的潜在致命影响.
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