Japanese medaka (Oryzias latipes) exposed via maternal transfer to the brominated flame retardant, 1,2,5,6-tetrabromocyclooctane (TBCO), experience decreased fecundity and impaired oocyte maturation
Aquat Toxicol. 2023 Nov 10;265:106761. doi: 10.1016/j.aquatox.2023.106761. Online ahead of print.ABSTRACTEarly life-stage exposure of fishes to endocrine disrupting chemicals can induce reproductive impairment at sexual maturity. Previously, we demonstrated decreased fecundity of Japanese medaka (Oryzias latipes) exposed via maternal transfer to the novel brominated flame retardant, 1,2,5,6-tetrabromocyclooctane (TBCO). However, that study failed to identify the causative mechanism. In other studies we have shown that decreased fecundity of adult fish exposed to dietary TBCO is likely due to impaired oocyte maturation. The...
Source: Aquatic Toxicology - November 19, 2023 Category: Toxicology Authors: Chloe Devoy Yamin Raza Paul D Jones Jon A Doering Steve Wiseman Source Type: research
Isomers are more likely to cause collapse of Daphnia magna populations than Di-(2-ethylhexyl) phthalate (DEHP)
Aquat Toxicol. 2023 Nov 16;265:106757. doi: 10.1016/j.aquatox.2023.106757. Online ahead of print.ABSTRACTDi-(2-ethylhexyl) phthalate (DEHP) is the most commonly used phthalate and is ubiquitous in surface water. Based on its well-established toxicological profile, many countries and regions have adopted specific environmental quality standard (EQS) for DEHP. In China, the EQS value for DEHP is 8 μg/L. However, information on isomers structurally similar to DEHP is limited. Among the isomers of DEHP, di-isooctyl phthalate (DIOP) and di-n-octyl phthalate (DnOP) have received limited attention. The goal of this paper was to ...
Source: Aquatic Toxicology - November 18, 2023 Category: Toxicology Authors: Yao Chen Haoyue Kong John P Giesy Hongling Liu Source Type: research
Ephedrine and cocaine cause developmental neurotoxicity and abnormal behavior in zebrafish
Aquat Toxicol. 2023 Nov 11;265:106765. doi: 10.1016/j.aquatox.2023.106765. Online ahead of print.ABSTRACTEphedrine (EPH) and cocaine (COC) are illegal stimulant drugs, and have been frequently detected in aquatic environments. EPH and COC have negative effects on the nervous system and cause abnormal behaviors in mammals and fish at high concentrations, but their mechanisms of neurotoxicity remain unclear in larvae fish at low concentrations. To address this issue, zebrafish embryos were exposed to EPH and COC for 14 days post-fertilization (dpf) at 10, 100, and 1000 ng L-1. The bioaccumulation, development, behavior, cell...
Source: Aquatic Toxicology - November 18, 2023 Category: Toxicology Authors: Dong-Dong Ma Wen-Jun Shi Si-Ying Li Jin-Ge Zhang Zhi-Jie Lu Xiao-Bing Long Xin Liu Chu-Shu Huang Guang-Guo Ying Source Type: research
Isomers are more likely to cause collapse of Daphnia magna populations than Di-(2-ethylhexyl) phthalate (DEHP)
Aquat Toxicol. 2023 Nov 16;265:106757. doi: 10.1016/j.aquatox.2023.106757. Online ahead of print.ABSTRACTDi-(2-ethylhexyl) phthalate (DEHP) is the most commonly used phthalate and is ubiquitous in surface water. Based on its well-established toxicological profile, many countries and regions have adopted specific environmental quality standard (EQS) for DEHP. In China, the EQS value for DEHP is 8 μg/L. However, information on isomers structurally similar to DEHP is limited. Among the isomers of DEHP, di-isooctyl phthalate (DIOP) and di-n-octyl phthalate (DnOP) have received limited attention. The goal of this paper was to ...
Source: Aquatic Toxicology - November 18, 2023 Category: Toxicology Authors: Yao Chen Haoyue Kong John P Giesy Hongling Liu Source Type: research
Ephedrine and cocaine cause developmental neurotoxicity and abnormal behavior in zebrafish
Aquat Toxicol. 2023 Nov 11;265:106765. doi: 10.1016/j.aquatox.2023.106765. Online ahead of print.ABSTRACTEphedrine (EPH) and cocaine (COC) are illegal stimulant drugs, and have been frequently detected in aquatic environments. EPH and COC have negative effects on the nervous system and cause abnormal behaviors in mammals and fish at high concentrations, but their mechanisms of neurotoxicity remain unclear in larvae fish at low concentrations. To address this issue, zebrafish embryos were exposed to EPH and COC for 14 days post-fertilization (dpf) at 10, 100, and 1000 ng L-1. The bioaccumulation, development, behavior, cell...
Source: Aquatic Toxicology - November 18, 2023 Category: Toxicology Authors: Dong-Dong Ma Wen-Jun Shi Si-Ying Li Jin-Ge Zhang Zhi-Jie Lu Xiao-Bing Long Xin Liu Chu-Shu Huang Guang-Guo Ying Source Type: research
Review on impacts of micro- and nano-plastic on aquatic ecosystems and mitigation strategies
Aquat Toxicol. 2023 Nov 8;265:106759. doi: 10.1016/j.aquatox.2023.106759. Online ahead of print.ABSTRACTThe rapid proliferation of microplastics (MPs) and nanoplastics (NPs) in our environment presents a formidable hazard to both biotic and abiotic components. These pollutants originate from various sources, including commercial production and the breakdown of larger plastic particles. Widespread contamination of the human body, agroecosystems, and animals occurs through ingestion, entry into the food chain, and inhalation. Consequently, the imperative to devise innovative methods for MPs and NPs remediation has become inc...
Source: Aquatic Toxicology - November 17, 2023 Category: Toxicology Authors: Shilpa Susan Scaria Balamuralikrishnan Balasubramanian Vijayalaxmi S Dandin Arun Meyyazhagan Manikantan Pappuswamy Govindharajan Sattanathan Wen-Chao Liu Joseph Kadanthottu Sebastian Sungkwon Park Source Type: research
Assessing the effects of a mixture of hydrophobic contaminants on the algae Rhodomonas salina using the chemical activity concept
Aquat Toxicol. 2023 Nov 4;265:106742. doi: 10.1016/j.aquatox.2023.106742. Online ahead of print.ABSTRACTThe production and release of chemicals from human activities are on the rise. Understanding how the aquatic environment is affected by the presence of an unknown number of chemicals is lacking. We employed the chemical activity concept to assess the combined effects of hydrophobic organic contaminants on the phytoplankton species Rodomonas salina. Chemical activity is additive, and refers to the relative saturation of a chemical in the studied matrix. The growth of R. salina was affected by chemical activity, following ...
Source: Aquatic Toxicology - November 17, 2023 Category: Toxicology Authors: Talles Bruno Oliveira Dos Anjos Sebastian Abel Elin Lindehoff Clare Bradshaw Anna Sobek Source Type: research
Effects of environmentally relevant cypermethrin and sulfamethoxazole on intestinal health, microbiome, and liver metabolism in grass carp
Aquat Toxicol. 2023 Nov 8;265:106760. doi: 10.1016/j.aquatox.2023.106760. Online ahead of print.ABSTRACTThe incorrect use of antibiotics and pesticides poses significant risks of biological toxicity. Their simultaneous exposure could jeopardize fish health and hinder sustainable aquaculture. Here, we subjected grass carp to waterborne cypermethrin (0.65 μg/L) or/and sulfamethoxazole (0.30 μg/L) treatments for a duration of 6 weeks. We closely monitored the effects on intestinal function, the intestinal microbiome, and the liver metabolome. The results revealed that exposure to waterborne cypermethrin or/and sulfamethoxaz...
Source: Aquatic Toxicology - November 17, 2023 Category: Toxicology Authors: Hongjing Zhao Yue Zhang Lulu Hou Hongmin Lu Yingxue Zhang Mingwei Xing Source Type: research
Effects of perchlorate and exogenous T4 exposures on body condition and endochondral ossification of Rana chensinensis tadpoles
Aquat Toxicol. 2023 Nov 11;265:106767. doi: 10.1016/j.aquatox.2023.106767. Online ahead of print.ABSTRACTPerchlorate, as an endocrine-disrupting chemical (EDC), is largely produced and used in the military, fireworks, fertilizers, and other industries and widely exists in water. Although perchlorate is known to destroy the normal function of thyroid hormones (THs) in amphibians and interfere with their growth and development, the impact of TH levels caused by sodium perchlorate (NaClO4) on endochondral ossification and skeletal development is poorly investigated, and the underlying molecular mechanism has not been clarifie...
Source: Aquatic Toxicology - November 16, 2023 Category: Toxicology Authors: Xinyi Li Jiayi Li Kaiyue Li Zhiqin Zhang Hongyuan Wang Source Type: research
Ecotoxicological insights: Effects of pesticides on ionic metabolism regulation in freshwater catfish, Mystus keletius
Aquat Toxicol. 2023 Nov 10;265:106764. doi: 10.1016/j.aquatox.2023.106764. Online ahead of print.ABSTRACTFish maintain their body fluid ionic and osmotic homeostasis using sophisticated iono-/osmoregulation mechanisms through gills ionocytes. Pesticide-induced ionic imbalance in fish has been recognized as a valuable tool to determine its toxic effects. Acute exposure to synthetic and organo-chemical pesticides on the regulation of ionic (Na+, Ca2+, P) metabolism in freshwater catfish Mystus keletius was evaluated. Fish were exposed to sub-lethal concentrations (mg/l) of selected pesticide for a period of 7, 14, 21 and 28 ...
Source: Aquatic Toxicology - November 16, 2023 Category: Toxicology Authors: Subramanian Ramya Ayyanar Barathinivas Ramaraj Jayakumararaj Chinnathambi Pothiraj Daoud Ali Giuseppe Piccione Cristiana Roberta Multisanti Paulraj Balaji Caterina Faggio Source Type: research
Effects of perchlorate and exogenous T4 exposures on body condition and endochondral ossification of Rana chensinensis tadpoles
Aquat Toxicol. 2023 Nov 11;265:106767. doi: 10.1016/j.aquatox.2023.106767. Online ahead of print.ABSTRACTPerchlorate, as an endocrine-disrupting chemical (EDC), is largely produced and used in the military, fireworks, fertilizers, and other industries and widely exists in water. Although perchlorate is known to destroy the normal function of thyroid hormones (THs) in amphibians and interfere with their growth and development, the impact of TH levels caused by sodium perchlorate (NaClO4) on endochondral ossification and skeletal development is poorly investigated, and the underlying molecular mechanism has not been clarifie...
Source: Aquatic Toxicology - November 16, 2023 Category: Toxicology Authors: Xinyi Li Jiayi Li Kaiyue Li Zhiqin Zhang Hongyuan Wang Source Type: research
Ecotoxicological insights: Effects of pesticides on ionic metabolism regulation in freshwater catfish, Mystus keletius
Aquat Toxicol. 2023 Nov 10;265:106764. doi: 10.1016/j.aquatox.2023.106764. Online ahead of print.ABSTRACTFish maintain their body fluid ionic and osmotic homeostasis using sophisticated iono-/osmoregulation mechanisms through gills ionocytes. Pesticide-induced ionic imbalance in fish has been recognized as a valuable tool to determine its toxic effects. Acute exposure to synthetic and organo-chemical pesticides on the regulation of ionic (Na+, Ca2+, P) metabolism in freshwater catfish Mystus keletius was evaluated. Fish were exposed to sub-lethal concentrations (mg/l) of selected pesticide for a period of 7, 14, 21 and 28 ...
Source: Aquatic Toxicology - November 16, 2023 Category: Toxicology Authors: Subramanian Ramya Ayyanar Barathinivas Ramaraj Jayakumararaj Chinnathambi Pothiraj Daoud Ali Giuseppe Piccione Cristiana Roberta Multisanti Paulraj Balaji Caterina Faggio Source Type: research
Fenpropathrin causes alterations in locomotion and social behaviors in zebrafish (Danio rerio)
Aquat Toxicol. 2023 Nov 7;265:106756. doi: 10.1016/j.aquatox.2023.106756. Online ahead of print.ABSTRACTFenpropathrin is one of the widely used pyrethroid pesticides in agriculture and is frequently detected in the environment, groundwater, and food. While fenpropathrin was found to have neurotoxic effects in mammals, it remains unclear whether it has similar effects on fish. Here, we used adult zebrafish to investigate the impacts of fenpropathrin on fish social behaviors and neural activity. Exposure of adult zebrafish to 500 ppb of fenpropathrin for 72 h increased anxiety levels but decreased physical fitness, as measur...
Source: Aquatic Toxicology - November 12, 2023 Category: Toxicology Authors: Sian-Tai Liu Jiun-Lin Horng Li-Yih Lin Ming-Yi Chou Source Type: research
Fenpropathrin causes alterations in locomotion and social behaviors in zebrafish (Danio rerio)
Aquat Toxicol. 2023 Nov 7;265:106756. doi: 10.1016/j.aquatox.2023.106756. Online ahead of print.ABSTRACTFenpropathrin is one of the widely used pyrethroid pesticides in agriculture and is frequently detected in the environment, groundwater, and food. While fenpropathrin was found to have neurotoxic effects in mammals, it remains unclear whether it has similar effects on fish. Here, we used adult zebrafish to investigate the impacts of fenpropathrin on fish social behaviors and neural activity. Exposure of adult zebrafish to 500 ppb of fenpropathrin for 72 h increased anxiety levels but decreased physical fitness, as measur...
Source: Aquatic Toxicology - November 12, 2023 Category: Toxicology Authors: Sian-Tai Liu Jiun-Lin Horng Li-Yih Lin Ming-Yi Chou Source Type: research
Fenpropathrin causes alterations in locomotion and social behaviors in zebrafish (Danio rerio)
Aquat Toxicol. 2023 Nov 7;265:106756. doi: 10.1016/j.aquatox.2023.106756. Online ahead of print.ABSTRACTFenpropathrin is one of the widely used pyrethroid pesticides in agriculture and is frequently detected in the environment, groundwater, and food. While fenpropathrin was found to have neurotoxic effects in mammals, it remains unclear whether it has similar effects on fish. Here, we used adult zebrafish to investigate the impacts of fenpropathrin on fish social behaviors and neural activity. Exposure of adult zebrafish to 500 ppb of fenpropathrin for 72 h increased anxiety levels but decreased physical fitness, as measur...
Source: Aquatic Toxicology - November 12, 2023 Category: Toxicology Authors: Sian-Tai Liu Jiun-Lin Horng Li-Yih Lin Ming-Yi Chou Source Type: research
