Article
Environmental Sciences
Tania Charette, Maikel Rosabal, Marc Amyot
Summary: The study identified associations between metals and muscle lipids and proteins, which could help explain changes in bioaccumulation patterns within fish and individuals, with potential implications for fish toxicology and human consumption guidelines.
Article
Environmental Sciences
Caroline Fink-Mercier, Paul A. del Giorgio, Marc Amyot, Jean-Francois Lapierre
Summary: The co-loading of mercury (Hg) with dissolved organic carbon (DOC) is a significant driver of the distribution patterns of mercury in aquatic ecosystems. Although DOC has been used as a predictor of Hg concentrations and exports in boreal regions, the relationship between Hg and methylmercury (MeHg) with DOC is highly variable. This study explores this relationship in 18 boreal rivers in eastern James Bay territory, and finds that hydrology and biogeochemical processes play a role in governing the patterns of Hg, MeHg, and DOC.
WATER RESOURCES RESEARCH
(2022)
Article
Environmental Sciences
Natalia Kozak, Kimmo K. Kahilainen, Hannu K. Pakkanen, Brian Hayden, Kjartan o Stbye, Sami J. Taipale
Summary: The aim of this study was to investigate the relationship between total mercury (THg) content in northern pike and amino acids, as well as various environmental and biological factors. The study found a positive relationship between THg and proline, while seven out of sixteen analyzed amino acids were significantly negatively related to warmer and more productive lakes. The study highlights the importance of both biological and environmental variables in determining THg levels.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Mehdi Moslemi-Aqdam, Leanne F. Baker, Jennifer L. Baltzer, Brian A. Branfireun, Marlene S. Evans, Brian D. Laird, George Low, Mike Low, Heidi K. Swanson
Summary: The concentrations of mercury in fish are influenced by complex biogeochemical and ecological interactions. These interactions have profound effects on fish mercury concentrations, particularly in northern latitudes. The study found that fish growth rates and concentrations of methylmercury in benthic invertebrates are important factors affecting mercury concentrations in Northern Pike. These variables are influenced by concentrations of dissolved organic carbon, methylmercury, and total mercury in lakes, which are ultimately driven by catchment characteristics.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Chemistry, Multidisciplinary
Ying-Jie Li, Qi Lin, Zheng-Hua Zhang, Tai-Bao Wei, Bingbing Shi, Hong Yao, You-Ming Zhang
Summary: Numerous new methods have been developed for synthesizing novel nanomaterials with unique functions. One novel strategy involves forming fluorescent nanoparticles in situ, which can efficiently sense Hg2+ in living cells and separate Hg2+ from water.
Article
Ecology
James H. Larson, Ryan P. Maki, Victoria G. Christensen, Enrika J. Hlavacek, Mark B. Sandheinrich, Jaime F. LeDuc, Claire Kissane, Brent C. Knights
Summary: Water level fluctuations can significantly impact the fauna, flora, and microbial communities in nearshore aquatic ecosystems, potentially influencing a wide variety of ecosystem processes. Studies have shown strong associations between water level fluctuations and mercury content in Yellow Perch, but these relationships appear to vary by lake.
Article
Chemistry, Multidisciplinary
Elena Pavoni, Efren Garcia-Ordiales, Stefano Covelli, Pablo Cienfuegos, Nieves Roqueni
Summary: At the Nalon River estuary in Northern Spain, the distribution and partitioning behavior of Hg and MeHg in the water column were studied, showing the influence of river discharge and tidal currents on the prevalence of dissolved and particulate Hg under different seasonal conditions. Particulate MeHg was found to prevail when river flow was low, especially at the estuary mouth, possibly due to resuspension of fine particles caused by strong tidal currents. Compared to total Hg concentration, extremely low amounts of dissolved and particulate MeHg were observed, with strong interactions between MeHg and organic carbon indicating a minimal risk of increased mobility and potential bioaccumulation of MeHg.
APPLIED SCIENCES-BASEL
(2021)
Article
Food Science & Technology
Siying Zhang, Xin Guo, Xiaorong Deng, Yunfeng Zhao, Xinrong Zhu, Jian Zhang
Summary: In this study, ferritin was extracted and purified from northern pike liver (NPLF), and its aggregation stabilities, assemble properties, and structural changes were investigated under various thermal treatments. The study found that mild thermal treatment at 80 degrees Celsius could inhibit ferritin aggregation while leaving its self-assembly capacity unaffected.
Article
Environmental Sciences
Hongxia Du, Pan Guo, Tao Wang, Ming Ma, Dingyong Wang
Summary: The bioaccumulation of MeHg in edible organisms living in the rice-based ecosystem was significantly higher than in paddy soils and rice roots, even though total Hg levels were higher in rice roots and grains. This indicates a potential elevated MeHg exposure risk through consumption, especially for local residents. The study highlights the importance of reducing the consumption of rice, eels, and loaches to mitigate MeHg exposure risks.
ENVIRONMENTAL POLLUTION
(2021)
Review
Environmental Sciences
Jin Zhang, Chengjun Li, Wenli Tang, Mengjie Wu, Mingying Chen, Huan He, Pei Lei, Huan Zhong
Summary: Wetlands are important areas for studying mercury (Hg) biogeochemistry and have attracted global attention. A literature analysis of 15,813 publications on Hg in wetlands was conducted, revealing the changing focus of research over time. The research priorities for future studies include understanding the factors controlling methylmercury (MeHg) production, demethylation processes, bioaccumulation, and the role of wetlands in Hg circulation.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Environmental
Tao Sun, Yongmin Wang, Chuxian Li, Jinyong Huang, Yingpeng Hua, Caipeng Yue, Hongbo Cha, Yongjiag Zhang, Dingyong Wang
Summary: The size of straw incorporation affects the accumulation of methylmercury in rice grains, with powdered straw reducing the accumulation by regulating the release of organic matter fractions in paddy soil and restraining net Hg methylation.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Sciences
Hasti Ziaei, Balaji Rao, Tea V. Wood, Uriel Garza-Rubalcava, Ashkan Alborzi, Huayun Zhou, Paul Bireta, Nancy Grosso, Danny Reible
Summary: The South River in Waynesboro, Virginia is contaminated with mercury due to historical releases from an industrial facility. Two sampling events were conducted in 2015 to assess mercury concentrations in the bank interstitial waters during base flows and after flooding events. The results showed higher mercury concentrations during bank drainage compared to base flow conditions. Laboratory experiments using South River sediments revealed that drainage cycles can result in high mercury leachate from contaminated sediment. A remedial approach involving sediment removal and the placement of biochar and an armoring layer successfully decreased mercury concentrations.
Article
Multidisciplinary Sciences
Yujuan Wang, Peipei Wu, Yanxu Zhang
Summary: The impacts of climate change on mercury cycling in the ocean include increased elemental mercury evasion, decreased air-sea exchange rates, reduced availability of bioavailable mercury for methylation, and increased photodemethylation potential, which can affect the concentration of methylmercury in the marine food web.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Gastroenterology & Hepatology
Nikos Stratakis, Lucy Golden-Mason, Katerina Margetaki, Yinqi Zhao, Damaskini Valvi, Erika Garcia, Lea Maitre, Sandra Andrusaityte, Xavier Basagana, Eva Borras, Mariona Bustamante, Maribel Casas, Serena Fossati, Regina Grazuleviciene, Line Smastuen Haug, Barbara Heude, Rosemary R. C. McEachan, Helle Margrete Meltzer, Eleni Papadopoulou, Theano Roumeliotaki, Oliver Robinson, Eduard Sabido, Jose Urquiza, Marina Vafeiadi, Nerea Varo, John Wright, Miriam B. Vos, Howard Hu, Martine Vrijheid, Kiros T. Berhane, David Conti, Rob McConnell, Hugo R. Rosen, Lida Chatzi
Summary: The study suggests that developmental exposure to mercury may contribute to liver injury and increased risk of NAFLD in early life.
Article
Environmental Sciences
Chutong Liu, Yongqiang Ning, Jinling Liu
Summary: Rice paddies, as artificial wetlands, produce methylmercury (MeHg), a potent neurotoxin. This study examines the impact of different mercury (Hg) forms on Hg-methylating communities in soil during rice growth. The results showed variations in the abundance of certain microbial groups under different mercury treatments and concentrations. The presence of hgcA-methanogen abundance in the soil was significantly correlated with MeHg concentration.
ENVIRONMENTAL POLLUTION
(2023)
Article
Environmental Sciences
Jared Bozich, Mimi Hang, Robert Hamers, Rebecca Klaper
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
(2017)
Article
Marine & Freshwater Biology
Nicholas J. Niemuth, Rebecca D. Klaper
AQUATIC TOXICOLOGY
(2018)
Article
Environmental Sciences
Jordan Crago, Rebecca Klaper
Article
Environmental Sciences
Gustavo A. Dominguez, Marco D. Torelli, Joseph T. Buchman, Christy L. Haynes, Robert J. Hamers, Rebecca D. Klaper
ENVIRONMENTAL RESEARCH
(2018)
Article
Chemistry, Multidisciplinary
Laura L. Olenick, Julianne M. Troiano, Ariane Vartanian, Eric S. Melby, Arielle C. Mensch, Leili Zhang, Jiewei Hong, Oluwaseun Mesele, Tian Qiu, Jared Bozich, Samuel Lohse, Xi Zhang, Thomas R. Kuech, Augusto Millevolte, Ian Gunsolus, Alicia C. McGeachy, Merve Dogangun, Tianzhe Li, Dehong Hu, Stephanie R. Walter, Aurash Mohaimani, Angela Schmoldt, Marco D. Torelli, Katherine R. Hurley, Joe Dalluge, Gene Chong, Z. Vivian Feng, Christy L. Haynes, Robert J. Hamers, Joel A. Pedersen, Qiang Cui, Rigoberto Hernandez, Rebecca Klaper, Galya Orr, Catherine J. Murphy, Franz M. Geiger
Article
Engineering, Environmental
Nicholas J. Niemuth, Becky J. Curtis, Mimi N. Hang, Miranda J. Gallagher, D. Howard Fairbrother, Robert J. Hamers, Rebecca D. Klaper
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2019)
Review
Environmental Sciences
Anne Fairbrother, Derek Muir, Keith R. Solomon, Gerald T. Ankley, Murray A. Rudd, Alistair B. A. Boxall, Jennifer N. Apell, Kevin L. Armbrust, Bonnie J. Blalock, Sarah R. Bowman, Linda M. Campbell, George P. Cobb, Kristin A. Connors, David A. Dreier, Marlene S. Evans, Carol J. Henry, Robert A. Hoke, Magali Houde, Stephen J. Klaine, Rebecca D. Klaper, Sigrun A. Kullik, Roman P. Lanno, Charles Meyer, Mary Ann Ottinger, Elias Oziolor, Elijah J. Petersen, Helen C. Poynton, Pamela J. Rice, Gabriela Rodriguez-Fuentes, Alan Samel, Joseph R. Shaw, Jeffery A. Steevens, Tim A. Verslycke, Doris E. Vidal-Dorsch, Scott M. Weir, Peter Wilson, Bryan W. Brooks
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
(2019)
Editorial Material
Nanoscience & Nanotechnology
Lisa E. Friedersdorf, Rhema Bjorkland, Rebecca D. Klaper, Christie M. Sayes, Mark R. Wiesner
NATURE NANOTECHNOLOGY
(2019)
Review
Chemistry, Multidisciplinary
Rebecca D. Klaper
Article
Engineering, Environmental
Hui Zhi, Dana W. Kolpin, Rebecca D. Klaper, Luke R. Iwanowicz, Shannon M. Meppelink, Gregory H. LeFevre
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2020)
Review
Environmental Sciences
Katarina Schulz, Marcia R. Silva, Rebecca Klaper
SCIENCE OF THE TOTAL ENVIRONMENT
(2020)
Article
Environmental Sciences
Eric Ostovich, Austin Henke, Curtis Green, Elizabeth Laudadio, Max Spehlmann, Nathan Van Ee, Jamie Uertz, Robert Hamers, Rebecca Klaper
Summary: Complex metal oxide nanomaterials, like lithiated cobalt oxide (LCO) nanosheets, are widely used in battery storage technology but their production without proper disposal/recycling infrastructure poses a risk to ecosystem health and sustainability. This study assessed the toxicological impacts of LCO on the growth and energy production of Raphidocelis subcapitata. Even at low concentrations, LCO significantly inhibited algal growth and caused cell cycle arrest. It also interfered with carbon assimilation chemistry and/or carbon partitioning, while increasing chlorophyll abundance to compensate for photosynthetic interference. The phytotoxicity of LCO was found to be mainly induced through nano-specific mechanisms. These findings highlight the potential implications of LCO nanomaterials on algal proliferation and energy production, as well as the importance of further understanding the molecular mechanisms at the nano-bio interface.
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
(2023)
Article
Engineering, Environmental
Nicholas J. Niemuth, Yonqian Zhang, Aurash A. Mohaimani, Angela Schmoldt, Elizabeth D. Laudadio, Robert J. Hamers, Rebecca D. Klaper
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2020)
Article
Chemistry, Multidisciplinary
Zachary R. Jones, Nicholas J. Niemuth, Margaret E. Robinson, Olga A. Shenderova, Rebecca D. Klaper, Robert J. Hamers
ENVIRONMENTAL SCIENCE-NANO
(2020)
Article
Chemistry, Multidisciplinary
Joseph T. T. Buchman, Evan A. A. Bennett, Chenyu Wang, Ali Abbaspour Tamijani, Joseph W. W. Bennett, Blake G. G. Hudson, Curtis M. M. Green, Peter L. L. Clement, Bo Zhi, Austin H. H. Henke, Elizabeth D. D. Laudadio, Sara E. E. Mason, Robert J. J. Hamers, Rebecca D. D. Klaper, Christy L. L. Haynes
ENVIRONMENTAL SCIENCE-NANO
(2020)
Article
Biochemistry & Molecular Biology
Gabriela Maressa Machado Baesso, Amanda Vitoria Venancio, Livia Costa Varela Barca, Pepita Fernanda Peppi, Caique Aparecido Faria, Joao Pedro Cosmo Machado, Luiz David Solis Murgas, Alvaro Jose de Almeida Bicudo, Eduardo Mauricio Mendes de Lima, Andre Rodrigues da Cunha Barreto-Vianna
Summary: This study evaluated the effects of eugenol, menthol, and lidocaine as anesthetics on glucose levels and recovery times in zebrafish. The results showed that eugenol and menthol did not affect glucose levels, while lidocaine caused non-concentration-dependent hyperglycemia. Recovery times were similar for eugenol and menthol, but concentration-dependent for lidocaine. Eugenol and menthol were deemed safe and satisfactory for glucose analysis in zebrafish research, while lidocaine could introduce biases and safety concerns. Researchers should carefully consider the selection of anesthetics for reliable results in zebrafish assessments.
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY C-TOXICOLOGY & PHARMACOLOGY
(2024)
Article
Biochemistry & Molecular Biology
Xiaoxue Li, Tangsong Feng, Weiqun Lu
Summary: This study reveals that exposure to VPA induces ASD-like phenotypes and behaviors, including gene transcription changes, social interaction deficit, decreased aggression, increased anxiety behavior, and elevated cortisol levels. The aggression behavior assay is a better predictor of neurotoxicology behavior of VPA.
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY C-TOXICOLOGY & PHARMACOLOGY
(2024)
Article
Biochemistry & Molecular Biology
Garam An, Junho Park, Whasun Lim, Gwonhwa Song
Summary: In this study, we investigated the hepatotoxicity and mechanism of action of pyridaben using zebrafish and ZFL cells. Pyridaben caused liver size reduction and apoptosis, and these effects were associated with uncontrolled intracellular calcium flow and downregulation of the PI3K/Akt signaling cascade.
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY C-TOXICOLOGY & PHARMACOLOGY
(2024)
Article
Biochemistry & Molecular Biology
Md Alamgir Kabir, Md. Golam Rabbane, Marco R. Hernandez, Md Aftab Ali Shaikh, Mohammad Moniruzzaman, Xuexiu Chang
Summary: This study investigated the toxicity of high concentrations of cadmium (Cd) on intestinal immunity and microbial diversity in common carp. The results showed that high Cd concentration caused intestinal inflammation, immunosuppression, and changes in the gut microbiome, leading to detrimental effects on the intestinal homeostasis and health status of the fish.
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY C-TOXICOLOGY & PHARMACOLOGY
(2024)
Article
Biochemistry & Molecular Biology
Anuradha Batabyal, Veronica Rivi, Cristina Benatti, Johanna M. C. Blom, Fabio Tascedda, Ken Lukowiak
Summary: This study found that exposure to heat shock stressors and bacterial lipopolysaccharide can induce the Garcia effect in pond snails. Additionally, aspirin can prevent the formation of the Garcia effect. However, unexpectedly, exposure to crushed aspirin and heat shock stressors together leads to long-lasting feeding suppression and molecular changes in the snails' serotoninergic system and neuroplasticity genes.
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY C-TOXICOLOGY & PHARMACOLOGY
(2024)
Article
Biochemistry & Molecular Biology
Li-Yih Lin, Chieh-An Cheng, Sian-Tai Liu, Jiun-Lin Horng
Summary: This study reveals that ammonia exposure impairs ion regulation in zebrafish embryos by inducing oxidative stress, mitochondrial dysfunction, and cell death. The findings suggest that ammonia is toxic to aquatic animals and can lead to the death of embryos.
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY C-TOXICOLOGY & PHARMACOLOGY
(2024)
Article
Biochemistry & Molecular Biology
Antonio Durate Pagano, Natieli Machado Goncalves, William Borges Domingues, Tony Leandro Rezende da Silveira, Mateus Tavares Kutter, Antonio Sergio Varela Jr, Carine Dahl Corcini, Mariana Cavalcanti Nascimento, Luana Ferreira Viana dos Reis, Patricia Gomes Costa, Adalto Bianchini, Matheus Vieira Volcan, Mariana Harter Remia, Vinicius Farias Campos
Summary: This study analyzed the toxic effects of Roundup Transorb (R) on the endangered Neotropical annual killifish Austrolebias charrua by evaluating molecular and biochemical biomarkers. The findings showed that exposure to Roundup significantly increased the production of reactive oxygen species, lipid peroxidation, and DNA damage in the fish's blood cells. It also decreased membrane fluidity. Gene expression analysis revealed alterations in genes associated with oxidative stress and antioxidant defense. This study provides new insights into adaptive mechanisms of A. charrua in response to Roundup, and it has important implications for environmental monitoring and aquatic toxicology assessment.
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY C-TOXICOLOGY & PHARMACOLOGY
(2024)
Article
Biochemistry & Molecular Biology
Xiaochan Gao, Hongtao Ren, Yong Huang, Yimin Li, Jiaqi Shen
Summary: The influence of multi-walled carbon nanotubes (MWCNTs) on the toxicity of zinc oxide nanoparticles (ZnONPs) in the intestine of common carp was investigated. The study found that the concentration and concentration ratio of the mixture played a role in the toxicity of ZnONPs. The presence of MWCNTs significantly decreased intercellular zinc accumulation and altered the microbial community diversity and composition of the gut microbiota.
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY C-TOXICOLOGY & PHARMACOLOGY
(2024)
Article
Biochemistry & Molecular Biology
Guangchao Yang, Qian Yang, Trust Beta, Qin Liu, Zhenzhu Zhu, Fei Shen
Summary: The study found that black garlic MLDs have alleviative effects on ZEN-induced toxicity, and exert their effects through antioxidative, anti-apoptotic, and inhibitory mechanisms on ZEN absorption.
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY C-TOXICOLOGY & PHARMACOLOGY
(2024)
Article
Biochemistry & Molecular Biology
Tuul Sepp, Ciara Baines, Randel Kreitsberg, Joern Peter Scharsack, Pedro Nogueira, Thomas Lang, Jerome Fort, Elin Sild, John T. Clarke, Arvo Tuvikene, Richard Meitern
Summary: Environmental factors can cause cancer in both wild animals and humans. The use of polluted habitats provides opportunities to study cancer defense mechanisms, which can be influenced by genetic variation and natural selection. Flatfish species, specifically flounders, show higher resistance to pollution-induced cancer compared to dabs, with elevated pollutant metabolism and stronger tumor suppression mechanisms in their liver tissue. This suggests a potential hormetic upregulation of tumor suppression or stronger natural selection pressure for cancer resistance in flounders. Wild species offer valuable insights into understanding the nature and evolution of natural cancer defense mechanisms.
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY C-TOXICOLOGY & PHARMACOLOGY
(2024)
Article
Biochemistry & Molecular Biology
Regan A. Moss, Kaitlyn M. Murphy, Steven T. Gardner, Madison M. Watkins, John W. Finger Finger Jr, Meghan D. Kelley, Ruth M. Elsey, Daniel A. Warner, Mary T. Mendonca
Summary: The study explored the impact of environmentally relevant concentrations of E2 on the immune system and hormone levels of hatchling American alligators. Results showed that exposure to environmental estrogen can alter plasma hormone concentrations but have little to no impact on morphology and immune responses.
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY C-TOXICOLOGY & PHARMACOLOGY
(2024)
Article
Biochemistry & Molecular Biology
Ye Liang, Zihao Li, Jing Yuan, Yiwen Zhou, Meng Li, Haifeng Gu
Summary: This study investigated the toxicity mechanism of homo-YTX and NH3-N on the survival of abalone. The results showed that homo-YTX and NH3-N enhanced oxidative stress and lipid peroxidation reactions, inhibited energy supply, disrupted metabolic and immune physiological functions, and activated apoptosis in the gills of abalone.
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY C-TOXICOLOGY & PHARMACOLOGY
(2024)