首页 > 最新文献

Aquatic Toxicology最新文献

英文 中文
Interactive effects of nonylphenol ethoxylate (NPE) exposure and thermal stress on oxidative stress biomarkers and neurotoxicity in bullfrog tadpoles 壬基酚聚氧乙烯酸(NPE)暴露和热应激对牛蛙蝌蚪氧化应激生物标志物和神经毒性的相互作用
IF 4.3 2区 环境科学与生态学 Q1 MARINE & FRESHWATER BIOLOGY Pub Date : 2026-02-01 Epub Date: 2025-12-08 DOI: 10.1016/j.aquatox.2025.107679
Yan Costa Gonçalves , Suzana Luisa Alves Fernandes , Francisco Tadeu Rantin , Ana Lúcia Kalinin , Diana Amaral Monteiro
The global decline in amphibian populations has been well documented and is driven by multiple environmental stressors. Among these, the synergistic effects of chemical pollution and rising water temperatures can significantly contribute to ecological disturbances. Nonylphenol ethoxylate (NPE), a surfactant widely used in sanitary and agrochemical products, has been detected in aquatic ecosystems. Despite its ecological relevance, the sublethal effects of NPE on amphibians, particularly under conditions of thermal stress, remain poorly understood. This study evaluated the effects of acute exposure (48 h) to an environmentally relevant concentration of NPE (30 µg L⁻¹) on Aquarana catesbeiana tadpoles under two thermal regimes (25 °C and 30 °C), including the potential interaction between these conditions. We assessed antioxidant enzymatic activities (superoxide dismutase, catalase, glutathione S-transferase, and glutathione peroxidase), glutathione levels, and oxidative stress biomarkers (lipid peroxidation and protein carbonylation) in hepatic, branchial, and muscular tissues. Neurotoxicity was assessed via acetylcholinesterase activity measurements in brain and muscle tissues. NPE exposure caused hepatotoxicity, oxidative damage and redox imbalance in gills and muscle, as well as inhibition of muscular acetylcholinesterase activity. Elevated temperature further depleted branchial antioxidant defenses, intensified oxidative stress in hepatic and muscular tissues, and induced central neurotoxicity. These findings demonstrate that sublethal exposure to NPE compromises redox balance and cholinergic function in a tissue-specific and temperature-dependent manner. The absence of regulatory limits for NPE in several countries represents a critical ecological threat, highlighting the urgent need to update aquatic environmental guidelines in the context of global warming.
全球两栖动物数量的减少已经有了很好的记录,这是由多种环境压力因素造成的。其中,化学污染和水温升高的协同效应对生态干扰有显著的促进作用。壬基酚聚氧乙酸酯(NPE)是一种广泛应用于卫生和农化产品的表面活性剂,在水生生态系统中被检测到。尽管与生态相关,但NPE对两栖动物的亚致死效应,特别是在热应激条件下,仍然知之甚少。本研究评估了急性暴露(48小时)于环境相关浓度的NPE (30 μ g L - 1)对两种热环境(25°C和30°C)下的Aquarana catesbeiana蝌蚪的影响,包括这些条件之间潜在的相互作用。我们评估了肝脏、鳃和肌肉组织中的抗氧化酶活性(超氧化物歧化酶、过氧化氢酶、谷胱甘肽s -转移酶和谷胱甘肽过氧化物酶)、谷胱甘肽水平和氧化应激生物标志物(脂质过氧化和蛋白质羰基化)。通过测量大脑和肌肉组织中的乙酰胆碱酯酶活性来评估神经毒性。NPE暴露引起肝毒性、鳃和肌肉氧化损伤和氧化还原失衡,以及肌肉乙酰胆碱酯酶活性抑制。升高的温度进一步削弱了鳃抗氧化防御,加剧了肝脏和肌肉组织的氧化应激,并诱发了中枢神经毒性。这些发现表明,亚致死暴露于NPE以组织特异性和温度依赖的方式损害氧化还原平衡和胆碱能功能。一些国家缺乏对NPE的监管限制,这是一种严重的生态威胁,突出表明迫切需要在全球变暖的背景下更新水生环境准则。
{"title":"Interactive effects of nonylphenol ethoxylate (NPE) exposure and thermal stress on oxidative stress biomarkers and neurotoxicity in bullfrog tadpoles","authors":"Yan Costa Gonçalves ,&nbsp;Suzana Luisa Alves Fernandes ,&nbsp;Francisco Tadeu Rantin ,&nbsp;Ana Lúcia Kalinin ,&nbsp;Diana Amaral Monteiro","doi":"10.1016/j.aquatox.2025.107679","DOIUrl":"10.1016/j.aquatox.2025.107679","url":null,"abstract":"<div><div>The global decline in amphibian populations has been well documented and is driven by multiple environmental stressors. Among these, the synergistic effects of chemical pollution and rising water temperatures can significantly contribute to ecological disturbances. Nonylphenol ethoxylate (NPE), a surfactant widely used in sanitary and agrochemical products, has been detected in aquatic ecosystems. Despite its ecological relevance, the sublethal effects of NPE on amphibians, particularly under conditions of thermal stress, remain poorly understood. This study evaluated the effects of acute exposure (48 h) to an environmentally relevant concentration of NPE (30 µg L⁻¹) on <em>Aquarana catesbeiana</em> tadpoles under two thermal regimes (25 °C and 30 °C), including the potential interaction between these conditions. We assessed antioxidant enzymatic activities (superoxide dismutase, catalase, glutathione S-transferase, and glutathione peroxidase), glutathione levels, and oxidative stress biomarkers (lipid peroxidation and protein carbonylation) in hepatic, branchial, and muscular tissues. Neurotoxicity was assessed via acetylcholinesterase activity measurements in brain and muscle tissues. NPE exposure caused hepatotoxicity, oxidative damage and redox imbalance in gills and muscle, as well as inhibition of muscular acetylcholinesterase activity. Elevated temperature further depleted branchial antioxidant defenses, intensified oxidative stress in hepatic and muscular tissues, and induced central neurotoxicity. These findings demonstrate that sublethal exposure to NPE compromises redox balance and cholinergic function in a tissue-specific and temperature-dependent manner. The absence of regulatory limits for NPE in several countries represents a critical ecological threat, highlighting the urgent need to update aquatic environmental guidelines in the context of global warming.</div></div>","PeriodicalId":248,"journal":{"name":"Aquatic Toxicology","volume":"291 ","pages":"Article 107679"},"PeriodicalIF":4.3,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145704938","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Bioaccumulation and toxicity of hexafluoropropylene oxide homologs in Manila clams (Ruditapes philippinarum) compared with PFOA: Correlations with molecular backbone length 马尼拉蛤(Ruditapes philippinarum)中六氟环氧丙烷同源物与PFOA的生物积累和毒性比较:与分子骨架长度的相关性
IF 4.3 2区 环境科学与生态学 Q1 MARINE & FRESHWATER BIOLOGY Pub Date : 2026-02-01 Epub Date: 2025-11-29 DOI: 10.1016/j.aquatox.2025.107660
Hanlin Qin , Qianqian Geng , Yujie Bi , Zhijun Tan , Chengchen Wu , Fengling Li , Mengmeng Guo
As emerging per-and polyfluoroalkyl substances (PFAS), hexafluoropropylene oxide (HFPO) homologs are substitutes for perfluorooctanoic acid (PFOA), but exhibit widespread environmental distribution, high bioaccumulation potential, and multiple toxic effects. This study compared the in vivo accumulation, biomarkers, histopathology, transcriptomics, and metabolomics of PFOA and HFPO homologs (HFPO-DA, HFPO-TA, and HFPO-TeA) in Manila clams (Ruditapes philippinarum). The visceral mass was the main target organ for these compounds at concentrations of 2 ng mL–1 and 200 ng mL–1. The order of peak concentrations and bioconcentration factors (BCFs) of the four compounds was HFPO-DA < PFOA < HFPO-TA < HFPO-TeA, with the BCF value being significantly higher at the lower exposure concentration, highlighting the crucial ecological risks of these compounds. Toxicological responses to a higher concentration (200 ng mL–1) of these compounds revealed that HFPO-TeA caused more severe cellular damage and immune function impairment, evidenced by fluctuations in oxidative stress markers and immunoenzymes, histopathological alterations, and significantly elevated levels of superoxide dismutase and glutathione, whereas HFPO-DA exhibited the lowest toxicity. Integrated biomarker response (IBR) and redundancy analysis (RDA) collectively demonstrated that oxidative stress effects were the most significant, resulting in levels of oxidative damage ranging from mild to severe as the molecular backbone length of the target compounds increased. Transcriptomic and metabolomic analyses revealed changes in amino acid metabolism, energy metabolism, glutathione metabolism, and antioxidant capacity of R. philippinarum in response to PFOA and HFPO homologs. These affected biological pathways related to oxidative toxicity, energy metabolism, and amino acid metabolism, with the most significant gene expression changes observed with HFPO-TeA. In addition, genes associated with glyceride metabolism in the HFPO-DA group and with the mTOR signaling pathway in the HFPO-TeA group were significantly upregulated. Thus, the bioconcentration potential and toxicity of PFOA and HFPO homologs appear to be positively correlated with their molecular backbone length. This study provides new insights for predicting the accumulation behavior and toxicity of PFOA and its alternatives based on their molecular backbone length.
作为新兴的全氟烷基和多氟烷基物质(PFAS),六氟环氧丙烷(HFPO)同系物是全氟辛酸(PFOA)的替代品,但具有广泛的环境分布、高生物蓄积潜力和多重毒性作用。本研究比较了马尼拉蛤(Ruditapes philippinarum)中PFOA和HFPO同源物(HFPO- da、HFPO- ta和HFPO- tea)的体内积累、生物标志物、组织病理学、转录组学和代谢组学。在2 ng mL-1和200 ng mL-1浓度下,内脏肿块是这些化合物的主要靶器官。4种化合物的峰值浓度和生物浓度因子(BCF)大小顺序为HFPO-DA <; PFOA < HFPO-TA < HFPO-TeA,且暴露浓度越低,BCF值越高,凸显了这些化合物的重要生态风险。对较高浓度(200 ng mL-1)的这些化合物的毒理学反应表明,HFPO-TeA引起更严重的细胞损伤和免疫功能障碍,证明了氧化应激标志物和免疫酶的波动,组织病理学改变,超氧化物歧化酶和谷胱甘肽水平显著升高,而HFPO-DA表现出最低的毒性。综合生物标志物反应(IBR)和冗余分析(RDA)共同表明,氧化应激效应最为显著,随着目标化合物分子骨架长度的增加,氧化损伤水平从轻微到严重不等。转录组学和代谢组学分析揭示了PFOA和HFPO同源物对菲律宾芦笋氨基酸代谢、能量代谢、谷胱甘肽代谢和抗氧化能力的影响。这些受影响的生物途径与氧化毒性、能量代谢和氨基酸代谢有关,其中以HFPO-TeA的基因表达变化最为显著。此外,HFPO-DA组甘油代谢相关基因和HFPO-TeA组mTOR信号通路相关基因均显著上调。因此,PFOA和HFPO同源物的生物浓缩潜力和毒性似乎与其分子骨架长度呈正相关。该研究为基于分子骨架长度预测PFOA及其替代品的蓄积行为和毒性提供了新的见解。
{"title":"Bioaccumulation and toxicity of hexafluoropropylene oxide homologs in Manila clams (Ruditapes philippinarum) compared with PFOA: Correlations with molecular backbone length","authors":"Hanlin Qin ,&nbsp;Qianqian Geng ,&nbsp;Yujie Bi ,&nbsp;Zhijun Tan ,&nbsp;Chengchen Wu ,&nbsp;Fengling Li ,&nbsp;Mengmeng Guo","doi":"10.1016/j.aquatox.2025.107660","DOIUrl":"10.1016/j.aquatox.2025.107660","url":null,"abstract":"<div><div>As emerging per-and polyfluoroalkyl substances (PFAS), hexafluoropropylene oxide (HFPO) homologs are substitutes for perfluorooctanoic acid (PFOA), but exhibit widespread environmental distribution, high bioaccumulation potential, and multiple toxic effects. This study compared the <em>in vivo</em> accumulation, biomarkers, histopathology, transcriptomics, and metabolomics of PFOA and HFPO homologs (HFPO-DA, HFPO-TA, and HFPO-TeA) in Manila clams (<em>Ruditapes philippinarum</em>). The visceral mass was the main target organ for these compounds at concentrations of 2 ng mL<sup>–1</sup> and 200 ng mL<sup>–1</sup>. The order of peak concentrations and bioconcentration factors (BCFs) of the four compounds was HFPO-DA &lt; PFOA &lt; HFPO-TA &lt; HFPO-TeA, with the BCF value being significantly higher at the lower exposure concentration, highlighting the crucial ecological risks of these compounds. Toxicological responses to a higher concentration (200 ng mL<sup>–1</sup>) of these compounds revealed that HFPO-TeA caused more severe cellular damage and immune function impairment, evidenced by fluctuations in oxidative stress markers and immunoenzymes, histopathological alterations, and significantly elevated levels of superoxide dismutase and glutathione, whereas HFPO-DA exhibited the lowest toxicity. Integrated biomarker response (IBR) and redundancy analysis (RDA) collectively demonstrated that oxidative stress effects were the most significant, resulting in levels of oxidative damage ranging from mild to severe as the molecular backbone length of the target compounds increased. Transcriptomic and metabolomic analyses revealed changes in amino acid metabolism, energy metabolism, glutathione metabolism, and antioxidant capacity of <em>R. philippinarum</em> in response to PFOA and HFPO homologs. These affected biological pathways related to oxidative toxicity, energy metabolism, and amino acid metabolism, with the most significant gene expression changes observed with HFPO-TeA. In addition, genes associated with glyceride metabolism in the HFPO-DA group and with the mTOR signaling pathway in the HFPO-TeA group were significantly upregulated. Thus, the bioconcentration potential and toxicity of PFOA and HFPO homologs appear to be positively correlated with their molecular backbone length. This study provides new insights for predicting the accumulation behavior and toxicity of PFOA and its alternatives based on their molecular backbone length.</div></div>","PeriodicalId":248,"journal":{"name":"Aquatic Toxicology","volume":"291 ","pages":"Article 107660"},"PeriodicalIF":4.3,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145619437","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sex-specific differences are shown in western mosquitofish (Gambusia affinis) following life cycle exposure to steroid compounds 在西方食蚊鱼(Gambusia affinis)的生命周期暴露于类固醇化合物后,显示出性别特异性差异
IF 4.3 2区 环境科学与生态学 Q1 MARINE & FRESHWATER BIOLOGY Pub Date : 2026-02-01 Epub Date: 2026-01-05 DOI: 10.1016/j.aquatox.2026.107708
Chen-Si Wang , Guo-Yong Huang , Dong-Qiao Lei , Guang-Guo Ying
Steroid hormones, such as androstadienedione (ADD), androstenedione (AED), and estrone (E1), are widespread and persistent in various aquatic environments. However, their combined effects on aquatic organisms remain poorly understood. In this study, western mosquitofish (Gambusia affinis) were exposed throughout their life cycle to low and high concentrations of ADD (100 and 10000 ng/L), AED (100 and 10000 ng/L), E1 (100 and 5000 ng/L), and binary mixtures of each androgen (ADD or AED) with E1 at their respective low and high concentrations. The effects of these treatments on sex ratio, condition factors, gonadal development, sexual dimorphism, and hypothalamic-pituitary-gonadal-liver axis-related gene transcription were assessed. A high concentration of ADD or AED significantly increased male-biased sex ratios (1.2-fold increase); however, this effect was attenuated in combination with a high concentration of E1. Notably, in males, a high concentration of ADD acted synergistically with E1, increasing the proportion of immature spermatocytes and downregulating amh transcriptional expression, thereby exacerbating testicular damage and reproductive toxicity. In contrast, in females, ADD or AED may antagonize E1, reducing oocyte degeneration rates and mitigating steroid-mediated disruption in fish. Overall, exposure to these hormones, whether alone or in combination, impairs gene expression and gonad development in G. affinis, but these effects exhibit sex-specific differences. These findings highlight the complex and sex-specific nature of endocrine disruption caused by steroid hormone mixtures in aquatic environments.
类固醇激素,如雄甾二酮(ADD)、雄甾二酮(AED)和雌酮(E1),在各种水生环境中广泛存在并持续存在。然而,它们对水生生物的综合影响仍然知之甚少。本研究将西食蚊鱼(Gambusia affinis)一生暴露于低浓度和高浓度的ADD(100和10000 ng/L)、AED(100和10000 ng/L)、E1(100和5000 ng/L),以及每种雄激素(ADD或AED)与E1在各自的低浓度和高浓度的混合物中。评估这些治疗对性别比、病情因素、性腺发育、两性二态性和下丘脑-垂体-性腺-肝轴相关基因转录的影响。高浓度的ADD或AED显著增加了男性偏倚性比率(增加1.2倍);然而,与高浓度E1结合后,这种作用减弱。值得注意的是,在雄性中,高浓度的ADD与E1协同作用,增加未成熟精母细胞的比例,下调amh的转录表达,从而加剧睾丸损伤和生殖毒性。相反,在雌性中,ADD或AED可以拮抗E1,降低卵母细胞变性率,减轻类固醇介导的破坏。总的来说,暴露在这些激素中,无论是单独的还是联合的,都会损害G. affinis的基因表达和性腺发育,但这些影响表现出性别特异性差异。这些发现强调了水生环境中类固醇激素混合物引起的内分泌干扰的复杂性和性别特异性。
{"title":"Sex-specific differences are shown in western mosquitofish (Gambusia affinis) following life cycle exposure to steroid compounds","authors":"Chen-Si Wang ,&nbsp;Guo-Yong Huang ,&nbsp;Dong-Qiao Lei ,&nbsp;Guang-Guo Ying","doi":"10.1016/j.aquatox.2026.107708","DOIUrl":"10.1016/j.aquatox.2026.107708","url":null,"abstract":"<div><div>Steroid hormones, such as androstadienedione (ADD), androstenedione (AED), and estrone (E1), are widespread and persistent in various aquatic environments. However, their combined effects on aquatic organisms remain poorly understood. In this study, western mosquitofish <strong>(</strong><em>Gambusia affinis</em>) were exposed throughout their life cycle to low and high concentrations of ADD (100 and 10000 ng/L), AED (100 and 10000 ng/L), E1 (100 and 5000 ng/L), and binary mixtures of each androgen (ADD or AED) with E1 at their respective low and high concentrations. The effects of these treatments on sex ratio, condition factors, gonadal development, sexual dimorphism, and hypothalamic-pituitary-gonadal-liver axis-related gene transcription were assessed. A high concentration of ADD or AED significantly increased male-biased sex ratios (1.2-fold increase); however, this effect was attenuated in combination with a high concentration of E1. Notably, in males, a high concentration of ADD acted synergistically with E1, increasing the proportion of immature spermatocytes and downregulating <em>amh</em> transcriptional expression, thereby exacerbating testicular damage and reproductive toxicity. In contrast, in females, ADD or AED may antagonize E1, reducing oocyte degeneration rates and mitigating steroid-mediated disruption in fish. Overall, exposure to these hormones, whether alone or in combination, impairs gene expression and gonad development in <em>G. affinis</em>, but these effects exhibit sex-specific differences. These findings highlight the complex and sex-specific nature of endocrine disruption caused by steroid hormone mixtures in aquatic environments.</div></div>","PeriodicalId":248,"journal":{"name":"Aquatic Toxicology","volume":"291 ","pages":"Article 107708"},"PeriodicalIF":4.3,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145897506","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The effects of fluoxetine and metformin pollution on phenotypic traits and gene expression in Daphnia magna 氟西汀和二甲双胍污染对大水蚤表型性状和基因表达的影响
IF 4.3 2区 环境科学与生态学 Q1 MARINE & FRESHWATER BIOLOGY Pub Date : 2026-02-01 Epub Date: 2025-12-01 DOI: 10.1016/j.aquatox.2025.107664
Anaïs H.R. Belfor, S. Schaack
Interest in the effects of pharmaceutical pollution on aquatic habitats has expanded with the growing number and increased distribution of drugs worldwide. In this study, we perform an experiment to examine the effects of two drugs, fluoxetine (known commercially as the anti-depressant Prozac™) and metformin (a widely-used diabetes medication), both of which are common freshwater contaminants. We investigated the effects of the two drugs alone and in combination on Daphnia magna in both in crowded and non-crowded conditions in order to understand how pharmaceutical pollution and naturally-occurring environmental cues might interact to shape phenotypic traits and gene expression. We assayed fecundity, respiration, transgenerational effects, and gene expression levels for three genes. Pharmaceuticals affected offspring, respiration, and gene expression, while crowding affected fecundity. Specifically, fluoxetine induced male production and metformin made offspring sickly. Overall, these drugs and their combination had detectable impacts on many traits, and in some cases the effects depended on crowding conditions. Daphnia, a model system in ecology and ecotoxicology, provides myriad insights into the effects of pollutants, both because of its key role in freshwater food webs and its ability to serve as an experimental system to determine sublethal and lethal effects. Our findings contribute to our current understanding of pharmaceutical pollution and suggest that investigating the risks using more real-world scenarios is important for the maintenance of freshwater drinking supplies and freshwater ecosystems.
随着世界范围内药物数量的增加和分布的增加,人们对药物污染对水生生境的影响的兴趣也越来越大。在这项研究中,我们进行了一项实验来检验两种药物的影响,氟西汀(商业上称为抗抑郁药百忧解™)和二甲双胍(一种广泛使用的糖尿病药物),这两种药物都是常见的淡水污染物。我们研究了两种药物单独和联合在拥挤和非拥挤条件下对大水蚤的影响,以了解药物污染和自然发生的环境线索如何相互作用来塑造表型性状和基因表达。我们分析了三个基因的繁殖力、呼吸作用、跨代效应和基因表达水平。药物影响后代、呼吸和基因表达,而拥挤影响繁殖力。具体来说,氟西汀诱导雄性繁殖,二甲双胍使后代患病。总的来说,这些药物及其组合对许多性状有可检测的影响,在某些情况下,影响取决于拥挤条件。水蚤是生态学和生态毒理学的一个模型系统,它为污染物的影响提供了无数的见解,这既是因为它在淡水食物网中的关键作用,也是因为它有能力作为一个实验系统来确定亚致死和致死效应。我们的研究结果有助于我们目前对药物污染的理解,并建议使用更多的真实场景来调查风险,这对于维持淡水饮用供应和淡水生态系统非常重要。
{"title":"The effects of fluoxetine and metformin pollution on phenotypic traits and gene expression in Daphnia magna","authors":"Anaïs H.R. Belfor,&nbsp;S. Schaack","doi":"10.1016/j.aquatox.2025.107664","DOIUrl":"10.1016/j.aquatox.2025.107664","url":null,"abstract":"<div><div>Interest in the effects of pharmaceutical pollution on aquatic habitats has expanded with the growing number and increased distribution of drugs worldwide. In this study, we perform an experiment to examine the effects of two drugs, fluoxetine (known commercially as the anti-depressant Prozac™) and metformin (a widely-used diabetes medication), both of which are common freshwater contaminants. We investigated the effects of the two drugs alone and in combination on <em>Daphnia magna</em> in both in crowded and non-crowded conditions in order to understand how pharmaceutical pollution and naturally-occurring environmental cues might interact to shape phenotypic traits and gene expression. We assayed fecundity, respiration, transgenerational effects, and gene expression levels for three genes. Pharmaceuticals affected offspring, respiration, and gene expression, while crowding affected fecundity. Specifically, fluoxetine induced male production and metformin made offspring sickly. Overall, these drugs and their combination had detectable impacts on many traits, and in some cases the effects depended on crowding conditions. <em>Daphnia</em>, a model system in ecology and ecotoxicology, provides myriad insights into the effects of pollutants, both because of its key role in freshwater food webs and its ability to serve as an experimental system to determine sublethal and lethal effects. Our findings contribute to our current understanding of pharmaceutical pollution and suggest that investigating the risks using more real-world scenarios is important for the maintenance of freshwater drinking supplies and freshwater ecosystems.</div></div>","PeriodicalId":248,"journal":{"name":"Aquatic Toxicology","volume":"291 ","pages":"Article 107664"},"PeriodicalIF":4.3,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145657337","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Corrigendum to “A whale in a well: Co-exposure of a persistent organic pollutant mixture and cetacean morbillivirus on killer whale (Orcinus orca) primary fibroblasts” [Aquatic Toxicology, 291, (2026) 107671] “井中的鲸鱼:虎鲸(Orcinus orca)原代成纤维细胞上持久性有机污染物混合物和鲸类病毒的共同暴露”的勘误表[水生毒理学,291,(2026)107671]
IF 4.3 2区 环境科学与生态学 Q1 MARINE & FRESHWATER BIOLOGY Pub Date : 2026-02-01 Epub Date: 2025-12-19 DOI: 10.1016/j.aquatox.2025.107684
Helena Costa , Maud Van Essche , Juliane A. Riedel , Akash Gupta , Audun H. Rikardsen , Anders Goksøyr , Pierre Blévin , Mikael Harju , Laura Pirard , Susan Bengtson Nash , Sofie Søderstrøm , Courtney A. Waugh
{"title":"Corrigendum to “A whale in a well: Co-exposure of a persistent organic pollutant mixture and cetacean morbillivirus on killer whale (Orcinus orca) primary fibroblasts” [Aquatic Toxicology, 291, (2026) 107671]","authors":"Helena Costa ,&nbsp;Maud Van Essche ,&nbsp;Juliane A. Riedel ,&nbsp;Akash Gupta ,&nbsp;Audun H. Rikardsen ,&nbsp;Anders Goksøyr ,&nbsp;Pierre Blévin ,&nbsp;Mikael Harju ,&nbsp;Laura Pirard ,&nbsp;Susan Bengtson Nash ,&nbsp;Sofie Søderstrøm ,&nbsp;Courtney A. Waugh","doi":"10.1016/j.aquatox.2025.107684","DOIUrl":"10.1016/j.aquatox.2025.107684","url":null,"abstract":"","PeriodicalId":248,"journal":{"name":"Aquatic Toxicology","volume":"291 ","pages":"Article 107684"},"PeriodicalIF":4.3,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145784828","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Hepatic toxicity induced by exposure to glyphosate/aminomethylphosphonic acid and oxytetracycline alone or in combination in zebrafish: A novel mechanism of the gut-liver axis 斑马鱼暴露于草甘膦/氨基甲基膦酸和土霉素单独或联合引起的肝毒性:肠-肝轴的新机制
IF 4.3 2区 环境科学与生态学 Q1 MARINE & FRESHWATER BIOLOGY Pub Date : 2026-02-01 Epub Date: 2026-01-12 DOI: 10.1016/j.aquatox.2026.107713
Junyue Zheng , Chen Wang , Miaomiao Teng , Tong Li , Jiazhen Jiang , Xiangguang Chen , Fengchang Wu
Glyphosate (Gly) is the most commonly used herbicide in the world. Glyphosate and its main degradation product, aminomethylphosphonic acid (AMPA), are often detected in aquatic environments and may pose a threat to the health of aquatic organisms. It is well established that Gly is mainly enriched in the intestine and degraded into AMPA. However, it remains unclear whether they disrupt the gut microbiota and cause liver health effects, as well as whether they have a synergistic effect with antibiotics. We investigated herein the effects of zebrafish exposure to Gly, AMPA and oxytetracycline (OTC) alone or in combination on the gut-liver axis. Our results suggest that Gly, AMPA, and OTC induce lipid accumulation, inflammatory response and oxidative damage in the liver, which is associated with a higher Firmicutes/Bacteroidetes ratio in the intestine and a higher levels of lipopolysaccharide in serum. Compared with the single exposure groups (OTC, Gly, and AMPA), the toxic effects of the gut-liver axis were more severe in the combined exposure groups (Gly+OTC, AMPA+OTC). Our results indicate that the health risks posed by Gly, AMPA and OTC through the gut microbiota of aquatic organisms are a neglected hot spots.
草甘膦(Gly)是世界上最常用的除草剂。草甘膦及其主要降解产物氨基甲基膦酸(AMPA)经常在水生环境中被检测到,并可能对水生生物的健康构成威胁。已经确定Gly主要富集于肠道并降解为AMPA。然而,目前尚不清楚它们是否会破坏肠道微生物群并导致肝脏健康影响,以及它们是否与抗生素有协同作用。本文研究了斑马鱼单独或联合暴露于Gly、AMPA和土霉素(OTC)对肠-肝轴的影响。我们的研究结果表明,Gly、AMPA和OTC诱导肝脏脂质积累、炎症反应和氧化损伤,这与肠道中厚壁菌门/拟杆菌门比例升高和血清中脂多糖水平升高有关。与单一暴露组(OTC、Gly、AMPA)相比,联合暴露组(Gly+OTC、AMPA+OTC)的肠肝轴毒性作用更为严重。我们的研究结果表明,Gly、AMPA和OTC通过水生生物肠道菌群构成的健康风险是一个被忽视的热点。
{"title":"Hepatic toxicity induced by exposure to glyphosate/aminomethylphosphonic acid and oxytetracycline alone or in combination in zebrafish: A novel mechanism of the gut-liver axis","authors":"Junyue Zheng ,&nbsp;Chen Wang ,&nbsp;Miaomiao Teng ,&nbsp;Tong Li ,&nbsp;Jiazhen Jiang ,&nbsp;Xiangguang Chen ,&nbsp;Fengchang Wu","doi":"10.1016/j.aquatox.2026.107713","DOIUrl":"10.1016/j.aquatox.2026.107713","url":null,"abstract":"<div><div>Glyphosate (Gly) is the most commonly used herbicide in the world. Glyphosate and its main degradation product, aminomethylphosphonic acid (AMPA), are often detected in aquatic environments and may pose a threat to the health of aquatic organisms. It is well established that Gly is mainly enriched in the intestine and degraded into AMPA. However, it remains unclear whether they disrupt the gut microbiota and cause liver health effects, as well as whether they have a synergistic effect with antibiotics. We investigated herein the effects of zebrafish exposure to Gly, AMPA and oxytetracycline (OTC) alone or in combination on the gut-liver axis. Our results suggest that Gly, AMPA, and OTC induce lipid accumulation, inflammatory response and oxidative damage in the liver, which is associated with a higher Firmicutes/Bacteroidetes ratio in the intestine and a higher levels of lipopolysaccharide in serum. Compared with the single exposure groups (OTC, Gly, and AMPA), the toxic effects of the gut-liver axis were more severe in the combined exposure groups (Gly+OTC, AMPA+OTC). Our results indicate that the health risks posed by Gly, AMPA and OTC through the gut microbiota of aquatic organisms are a neglected hot spots.</div></div>","PeriodicalId":248,"journal":{"name":"Aquatic Toxicology","volume":"291 ","pages":"Article 107713"},"PeriodicalIF":4.3,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145957007","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Advances in three-dimensional fish cell models for aquatic toxicology 三维鱼类细胞模型在水生毒理学研究中的进展
IF 4.3 2区 环境科学与生态学 Q1 MARINE & FRESHWATER BIOLOGY Pub Date : 2026-02-01 Epub Date: 2026-01-10 DOI: 10.1016/j.aquatox.2026.107711
Ping-Ping Zhang , Chong-Rui Yao , Wen-Jun Shi , Ting Xu , Guang-Guo Ying
Aquatic ecosystems are increasingly threatened by diverse environmental pollutants, such as pharmaceuticals, personal care products, and persistent organic contaminants. While traditional in vivo fish models and two-dimensional (2D) cell cultures provide valuable mechanistic insights, they are limited by ethical concerns and insufficient ecological relevance. In contrast, three-dimensional (3D) fish cell culture systems, including spheroids, organoids, and organ-on-a-chip platforms, have been established as powerful tools in toxicology. These advanced models more accurately replicate native tissue architecture, maintain metabolic functions over extended periods, and facilitate long-term exposure studies, thereby enabling a comprehensive assessment of pollutant toxicity, bioaccumulation potential, and toxic mechanisms. The efficacy of 3D systems has been demonstrated in recent applications for evaluating endocrine-disrupting effects, pharmaceutical metabolism, host-pathogen interactions, and the chronic effects of organic pollutants. Notably, these models exhibit superior predictive capacity compared to conventional 2D assays. Despite significant advancements, challenges remain in standardizing protocols across fish species, improving analytical compatibility, and ensuring long-term culture stability. Advancing these innovative models through interdisciplinary collaboration will promote their integration into ecotoxicological testing and ecological risk assessment. Such progress is essential to support global initiatives aimed at advancing animal-free toxicology.
水生生态系统日益受到各种环境污染物的威胁,如药品、个人护理产品和持久性有机污染物。虽然传统的体内鱼模型和二维(2D)细胞培养提供了有价值的机制见解,但它们受到伦理问题和生态相关性不足的限制。相比之下,三维(3D)鱼细胞培养系统,包括球体、类器官和芯片上的器官平台,已经成为毒理学研究的有力工具。这些先进的模型更准确地复制了天然组织结构,在较长时间内维持代谢功能,并促进了长期暴露研究,从而能够全面评估污染物的毒性、生物蓄积潜力和毒性机制。3D系统的有效性已在最近的应用中得到证明,用于评估内分泌干扰效应、药物代谢、宿主-病原体相互作用和有机污染物的慢性效应。值得注意的是,与传统的二维分析相比,这些模型表现出优越的预测能力。尽管取得了重大进展,但在标准化鱼类协议、提高分析兼容性和确保长期培养稳定性方面仍然存在挑战。通过跨学科合作推进这些创新模型将促进它们与生态毒理学测试和生态风险评估的整合。这种进展对于支持旨在推进无动物毒理学的全球倡议至关重要。
{"title":"Advances in three-dimensional fish cell models for aquatic toxicology","authors":"Ping-Ping Zhang ,&nbsp;Chong-Rui Yao ,&nbsp;Wen-Jun Shi ,&nbsp;Ting Xu ,&nbsp;Guang-Guo Ying","doi":"10.1016/j.aquatox.2026.107711","DOIUrl":"10.1016/j.aquatox.2026.107711","url":null,"abstract":"<div><div>Aquatic ecosystems are increasingly threatened by diverse environmental pollutants, such as pharmaceuticals, personal care products, and persistent organic contaminants. While traditional in vivo fish models and two-dimensional (2D) cell cultures provide valuable mechanistic insights, they are limited by ethical concerns and insufficient ecological relevance. In contrast, three-dimensional (3D) fish cell culture systems, including spheroids, organoids, and organ-on-a-chip platforms, have been established as powerful tools in toxicology. These advanced models more accurately replicate native tissue architecture, maintain metabolic functions over extended periods, and facilitate long-term exposure studies, thereby enabling a comprehensive assessment of pollutant toxicity, bioaccumulation potential, and toxic mechanisms. The efficacy of 3D systems has been demonstrated in recent applications for evaluating endocrine-disrupting effects, pharmaceutical metabolism, host-pathogen interactions, and the chronic effects of organic pollutants. Notably, these models exhibit superior predictive capacity compared to conventional 2D assays. Despite significant advancements, challenges remain in standardizing protocols across fish species, improving analytical compatibility, and ensuring long-term culture stability. Advancing these innovative models through interdisciplinary collaboration will promote their integration into ecotoxicological testing and ecological risk assessment. Such progress is essential to support global initiatives aimed at advancing animal-free toxicology.</div></div>","PeriodicalId":248,"journal":{"name":"Aquatic Toxicology","volume":"291 ","pages":"Article 107711"},"PeriodicalIF":4.3,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145957004","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Juvenile hormone analog, fenoxycarb induced apoptotic effects in the developing ovary of Daphnia magna 幼崽激素类似物,芬诺威诱导大水蚤卵巢发育中的凋亡效应
IF 4.3 2区 环境科学与生态学 Q1 MARINE & FRESHWATER BIOLOGY Pub Date : 2026-02-01 Epub Date: 2025-12-29 DOI: 10.1016/j.aquatox.2025.107699
Lichi Hsieh, Fransiscus Jason Wiguna, Nikko Adhitama, Yasuhiko Kato, Hajime Watanabe
Juvenile hormone analogs (JHAs) are widely used insect growth regulators that disrupt endocrine signaling and impair reproduction in arthropods. Although their effects on non-target crustaceans such as Daphnia magna are well documented, the cellular mechanisms underlying JHA-induced reproductive toxicity remain unclear. In this study, we performed time-course exposure experiments to identify the sensitive window during which fenoxycarb reduces fecundity and investigated the associated ovarian changes. We generated a germline-specific VASA:H2B-GFP knock-in line to visualize ovarian nuclei in vivo and found that exposure during 16–32 h after oviposition resulted in marked reductions in offspring number. High-resolution fluorescence and multiphoton imaging revealed apoptosis-like nuclear abnormalities in developing oocytes, indicating that oocyte degeneration contributes to reduced fecundity. This study provides evidence that oocyte degeneration contributes to fenoxycarb-induced reproductive impairment and highlights the utility of genetic and live-imaging tools for advancing mechanistic understanding of endocrine disruption in small aquatic invertebrates.
幼体激素类似物(JHAs)是广泛使用的昆虫生长调节剂,可破坏内分泌信号,损害节肢动物的生殖功能。尽管jha对水蚤等非靶甲壳类动物的影响已有文献记载,但jha诱导生殖毒性的细胞机制尚不清楚。在这项研究中,我们进行了时间过程暴露实验,以确定芬诺威降低生殖力的敏感窗口,并研究了相关的卵巢变化。我们建立了一种种系特异性VASA:H2B-GFP敲入系,在体内观察卵巢核,发现在产卵后16-32小时暴露会导致后代数量显著减少。高分辨率荧光和多光子成像显示发育中的卵母细胞出现凋亡样核异常,表明卵母细胞变性导致生殖力降低。本研究提供了卵母细胞退化导致芬诺威诱导的生殖损伤的证据,并强调了遗传和活体成像工具在促进对小型水生无脊椎动物内分泌干扰机制理解方面的效用。
{"title":"Juvenile hormone analog, fenoxycarb induced apoptotic effects in the developing ovary of Daphnia magna","authors":"Lichi Hsieh,&nbsp;Fransiscus Jason Wiguna,&nbsp;Nikko Adhitama,&nbsp;Yasuhiko Kato,&nbsp;Hajime Watanabe","doi":"10.1016/j.aquatox.2025.107699","DOIUrl":"10.1016/j.aquatox.2025.107699","url":null,"abstract":"<div><div>Juvenile hormone analogs (JHAs) are widely used insect growth regulators that disrupt endocrine signaling and impair reproduction in arthropods. Although their effects on non-target crustaceans such as <em>Daphnia magna</em> are well documented, the cellular mechanisms underlying JHA-induced reproductive toxicity remain unclear. In this study, we performed time-course exposure experiments to identify the sensitive window during which fenoxycarb reduces fecundity and investigated the associated ovarian changes. We generated a germline-specific VASA:H2B-GFP knock-in line to visualize ovarian nuclei in vivo and found that exposure during 16–32 h after oviposition resulted in marked reductions in offspring number. High-resolution fluorescence and multiphoton imaging revealed apoptosis-like nuclear abnormalities in developing oocytes, indicating that oocyte degeneration contributes to reduced fecundity. This study provides evidence that oocyte degeneration contributes to fenoxycarb-induced reproductive impairment and highlights the utility of genetic and live-imaging tools for advancing mechanistic understanding of endocrine disruption in small aquatic invertebrates.</div></div>","PeriodicalId":248,"journal":{"name":"Aquatic Toxicology","volume":"291 ","pages":"Article 107699"},"PeriodicalIF":4.3,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145880044","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Copper- and zinc-based metal-organic frameworks (MOFs) as sustainable algicides: Effective inhibition of Karenia selliformis blooms and toxin production with ecotoxicological assessment on Artemia salina 铜和锌基金属有机框架(mof)作为可持续的杀藻剂:有效抑制selliformia Karenia华和毒素产生及对Artemia salina的生态毒理学评价
IF 4.3 2区 环境科学与生态学 Q1 MARINE & FRESHWATER BIOLOGY Pub Date : 2026-02-01 Epub Date: 2025-12-18 DOI: 10.1016/j.aquatox.2025.107689
Mohammad Sadiq Nikzad , Jiangbing Qiu , Guixiang Wang , Natnael Sisay Demo , Jinglin Liu , Aifeng Li
Marine dinoflagellate Karenia selliformis, as a notorious fish-killing microalga, poses a serious threat to aquatic ecosystems and aquaculture due to its production of neurotoxins such as gymnodimines (GYMs). To look for some sustainable alternatives of traditional algicides, metal organic frameworks (MOFs) have attracted attention of researchers. The effectiveness and ecotoxicological impacts of Cu-MOF and Zn-MOF on K. selliformis and the brine shrimp (Artemia salina) were investigated in this study. Both MOFs inhibited the growth of K. selliformis in a dose- and time-dependent pattern, with Cu-MOF being more effective at lower concentrations (89% inhibition at 1.0 mg L−1 after 96 h). The MOFs decreased the photosynthetic parameter Fv/Fm, enhanced content of chlorophyll a and induced oxidative stress in the experimental microalga. Transmembrane internalization of MOFs was validated using a confocal microscopy, and a dose-dependent increase in intracellular Cu2+ and Zn2+ accumulation was verified. Exposure to MOFs reduced contents of both intracellular and extracellular gymnodimine A (GYM-A). Ecotoxicological evaluation on A. salina revealed concentration-dependent mortality, with Cu-MOF being more toxic (83.3% mortality at 5 mg L−1 after 72 h) than Zn-MOF (11.7% at the same concentration and time). While higher MOF concentrations led to increased larval mortality and oxidative stress, concentrations ≤ 1.0 mg L−1 for Cu-MOF and ≤ 10 mg L−1 for Zn-MOF were within safe thresholds for A. salina. These findings highlight the potential of MOFs as agents for mitigation of harmful algal blooms (HABs) but underscore the necessity of careful dosage optimization to balance efficacy with environmental safety.
海洋甲藻(Karenia selliformis)是一种臭名昭著的杀鱼微藻,由于其产生的神经毒素如裸子二胺(gymnodinines, gym)对水生生态系统和水产养殖造成严重威胁。为了寻找一些可持续的传统杀藻剂替代品,金属有机框架(MOFs)引起了研究人员的关注。本文研究了Cu-MOF和Zn-MOF对沙棘海蛾和盐虾的药效及生态毒理学影响。两种mof均呈剂量和时间依赖性,其中Cu-MOF在较低浓度下更有效(1.0 mg L−1,96 h后抑制率为89%)。MOFs降低了实验微藻的光合参数Fv/Fm,提高了叶绿素a含量,诱导了氧化应激。使用共聚焦显微镜验证了mof的跨膜内化,并证实了细胞内Cu2+和Zn2+积累的剂量依赖性增加。暴露于MOFs降低了细胞内和细胞外裸子二胺A (gyma)的含量。对盐藻的生态毒理学评价显示出浓度依赖性死亡率,Cu-MOF的毒性大于Zn-MOF(在相同浓度和时间下,相同浓度和时间下,Cu-MOF的死亡率为83.3%,高于Zn-MOF(11.7%)。虽然较高的MOF浓度会增加幼虫的死亡率和氧化应激,但Cu-MOF浓度≤1.0 mg L−1和Zn-MOF浓度≤10 mg L−1都在盐芽孢杆菌的安全阈值范围内。这些发现强调了MOFs作为减缓有害藻华(HABs)药剂的潜力,但也强调了谨慎优化剂量以平衡效果与环境安全的必要性。
{"title":"Copper- and zinc-based metal-organic frameworks (MOFs) as sustainable algicides: Effective inhibition of Karenia selliformis blooms and toxin production with ecotoxicological assessment on Artemia salina","authors":"Mohammad Sadiq Nikzad ,&nbsp;Jiangbing Qiu ,&nbsp;Guixiang Wang ,&nbsp;Natnael Sisay Demo ,&nbsp;Jinglin Liu ,&nbsp;Aifeng Li","doi":"10.1016/j.aquatox.2025.107689","DOIUrl":"10.1016/j.aquatox.2025.107689","url":null,"abstract":"<div><div>Marine dinoflagellate <em>Karenia selliformis</em>, as a notorious fish-killing microalga, poses a serious threat to aquatic ecosystems and aquaculture due to its production of neurotoxins such as gymnodimines (GYMs). To look for some sustainable alternatives of traditional algicides, metal organic frameworks (MOFs) have attracted attention of researchers. The effectiveness and ecotoxicological impacts of Cu-MOF and Zn-MOF on <em>K. selliformis</em> and the brine shrimp (<em>Artemia salina</em>) were investigated in this study. Both MOFs inhibited the growth of <em>K. selliformis</em> in a dose- and time-dependent pattern, with Cu-MOF being more effective at lower concentrations (89% inhibition at 1.0 mg L<sup>−1</sup> after 96 h). The MOFs decreased the photosynthetic parameter F<sub>v</sub>/F<sub>m</sub>, enhanced content of chlorophyll <em>a</em> and induced oxidative stress in the experimental microalga. Transmembrane internalization of MOFs was validated using a confocal microscopy, and a dose-dependent increase in intracellular Cu<sup>2</sup><sup>+</sup> and Zn<sup>2</sup><sup>+</sup> accumulation was verified. Exposure to MOFs reduced contents of both intracellular and extracellular gymnodimine A (GYM-A). Ecotoxicological evaluation on <em>A. salina</em> revealed concentration-dependent mortality, with Cu-MOF being more toxic (83.3% mortality at 5 mg L<sup>−1</sup> after 72 h) than Zn-MOF (11.7% at the same concentration and time). While higher MOF concentrations led to increased larval mortality and oxidative stress, concentrations ≤ 1.0 mg L<sup>−1</sup> for Cu-MOF and ≤ 10 mg L<sup>−1</sup> for Zn-MOF were within safe thresholds for <em>A. salina</em>. These findings highlight the potential of MOFs as agents for mitigation of harmful algal blooms (HABs) but underscore the necessity of careful dosage optimization to balance efficacy with environmental safety.</div></div>","PeriodicalId":248,"journal":{"name":"Aquatic Toxicology","volume":"291 ","pages":"Article 107689"},"PeriodicalIF":4.3,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145784829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Molecular interactions and biomarker responses to pharmaceutical contaminants in aquatic species 水生物种对药物污染物的分子相互作用和生物标志物反应
IF 4.3 2区 环境科学与生态学 Q1 MARINE & FRESHWATER BIOLOGY Pub Date : 2026-02-01 Epub Date: 2025-12-16 DOI: 10.1016/j.aquatox.2025.107687
Dibakar Roy , Mokhtar Rejili , Wasim Ghafoor , Iqra Sarwar , Devendra Pratap Rao , Jayanthi Barasarath , Zamira Atamuratova , Urazbaeva Yulduz
Pharmaceutical residues are increasingly detected in freshwater systems, yet mechanistic links between sub-lethal exposure and organ-level injury in fish remain limited. This study assessed 21-day effects of carbamazepine (CBZ), diclofenac (DCF) and fluoxetine (FLX) on Labeo rohita using integrated hepatic and renal biomarker panels supported by molecular docking. Fish were exposed to sub-lethal concentrations under semi-static conditions, and responses were quantified using standard biochemical assays. Hepatic markers included cytochrome P4501A activity (CYP1A/EROD), uridine diphosphate-glucuronosyltransferase (UGT), glutathione S-transferase (GST), antioxidant enzymes [superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx)], redox balance [reduced/oxidized glutathione ratio (GSH/GSSG)] and oxidative damage indicators such as malondialdehyde (MDA). Renal endpoints comprised organic anion transporters (OAT1/OAT3), cyclooxygenase-2 (COX-2), caspase-3, kidney injury molecule-1 (KIM-1), neutrophil gelatinase-associated lipocalin (NGAL), N-acetyl-β-d-glucosaminidase (NAG), creatinine and urea. Homology models of CYP1A, COX-2, serotonin transporter (SERT), heat-shock protein 70 (HSP70) and vitellogenin (Vtg) were validated using QMEAN and docked with CB-Dock2. Responses ranked DCF > CBZ > FLX. Diclofenac caused the strongest biotransformation induction, antioxidant suppression, oxidative damage and renal injury, whereas CBZ induced moderate health effects and FLX produced mild changes. Findings highlight biomarker-anchored evidence of pharmaceutical risk to carp health and offer practical indicators for freshwater monitoring.
在淡水系统中越来越多地检测到药物残留,但亚致死暴露与鱼类器官水平损伤之间的机制联系仍然有限。本研究利用分子对接支持的综合肝脏和肾脏生物标志物面板,评估了卡马西平(CBZ)、双氯芬酸(DCF)和氟西汀(FLX)对罗希塔Labeo rohita 21天的影响。鱼在半静态条件下暴露于亚致死浓度,并使用标准生化分析对反应进行量化。肝脏标志物包括细胞色素P4501A活性(CYP1A/EROD)、尿苷二磷酸-葡萄糖醛基转移酶(UGT)、谷胱甘肽s -转移酶(GST)、抗氧化酶[超氧化物歧化酶(SOD)、过氧化氢酶(CAT)、谷胱甘肽过氧化物酶(GPx)]、氧化还原平衡[还原/氧化谷胱甘肽比值(GSH/GSSG)]和氧化损伤指标如丙二醛(MDA)。肾终点包括有机阴离子转运蛋白(OAT1/OAT3)、环氧化酶-2 (COX-2)、caspase-3、肾损伤分子-1 (KIM-1)、中性粒细胞明胶酶相关脂钙蛋白(NGAL)、n -乙酰-β-d-氨基葡萄糖酶(NAG)、肌酐和尿素。CYP1A、COX-2、血清素转运体(SERT)、热休克蛋白70 (HSP70)和卵黄原蛋白(Vtg)的同源性模型使用QMEAN进行验证,并与CB-Dock2对接。回复排名为DCF >; CBZ >; FLX。双氯芬酸引起的生物转化诱导、抗氧化抑制、氧化损伤和肾损伤最强,而CBZ对健康的影响中等,FLX对健康的影响较轻。研究结果强调了生物标志物锚定的药物风险对鲤鱼健康的证据,并为淡水监测提供了实用指标。
{"title":"Molecular interactions and biomarker responses to pharmaceutical contaminants in aquatic species","authors":"Dibakar Roy ,&nbsp;Mokhtar Rejili ,&nbsp;Wasim Ghafoor ,&nbsp;Iqra Sarwar ,&nbsp;Devendra Pratap Rao ,&nbsp;Jayanthi Barasarath ,&nbsp;Zamira Atamuratova ,&nbsp;Urazbaeva Yulduz","doi":"10.1016/j.aquatox.2025.107687","DOIUrl":"10.1016/j.aquatox.2025.107687","url":null,"abstract":"<div><div>Pharmaceutical residues are increasingly detected in freshwater systems, yet mechanistic links between sub-lethal exposure and organ-level injury in fish remain limited. This study assessed 21-day effects of carbamazepine (CBZ), diclofenac (DCF) and fluoxetine (FLX) on <em>Labeo rohita</em> using integrated hepatic and renal biomarker panels supported by molecular docking. Fish were exposed to sub-lethal concentrations under semi-static conditions, and responses were quantified using standard biochemical assays. Hepatic markers included cytochrome P4501A activity (CYP1A/EROD), uridine diphosphate-glucuronosyltransferase (UGT), glutathione S-transferase (GST), antioxidant enzymes [superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx)], redox balance [reduced/oxidized glutathione ratio (GSH/GSSG)] and oxidative damage indicators such as malondialdehyde (MDA). Renal endpoints comprised organic anion transporters (OAT1/OAT3), cyclooxygenase-2 (COX-2), caspase-3, kidney injury molecule-1 (KIM-1), neutrophil gelatinase-associated lipocalin (NGAL), N-acetyl-β-<span>d</span>-glucosaminidase (NAG), creatinine and urea. Homology models of CYP1A, COX-2, serotonin transporter (SERT), heat-shock protein 70 (HSP70) and vitellogenin (Vtg) were validated using QMEAN and docked with CB-Dock2. Responses ranked DCF &gt; CBZ &gt; FLX. Diclofenac caused the strongest biotransformation induction, antioxidant suppression, oxidative damage and renal injury, whereas CBZ induced moderate health effects and FLX produced mild changes. Findings highlight biomarker-anchored evidence of pharmaceutical risk to carp health and offer practical indicators for freshwater monitoring.</div></div>","PeriodicalId":248,"journal":{"name":"Aquatic Toxicology","volume":"291 ","pages":"Article 107687"},"PeriodicalIF":4.3,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145784831","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
期刊
Aquatic Toxicology
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1