Article
Marine & Freshwater Biology
Ivana Milenkovic, Ksenija Radotic, Jovana Despotovic, Branka Loncarevic, Marija Ljesevic, Sladana Z. Spasic, Aleksandra Nikolic, Vladimir P. Beskoski
Summary: The study demonstrates the effectiveness of coating in reducing the toxic effects of cerium oxide nanoparticles on the environment. Compared to uncoated nanoparticles, carbohydrate-coated nanoparticles show decreased toxicity in tested organisms.
AQUATIC TOXICOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Laura-Jayne. A. Ellis, Stephen Kissane, Iseult Lynch
Summary: This study highlights the importance of environmental nano-biological interactions on model species and their progeny for nanomaterial risk assessment. It shows how maternal exposure to silver and titanium dioxide NMs affects the biological traits of offspring across multiple generations, with different levels of exposure leading to varying outcomes in terms of growth, reproduction, and survival. The research also reveals transgenerational responses to NM exposure concentrations, providing valuable insights for environmental risk assessments and predicting impacts on ecological systems.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Environmental Sciences
Zhongshi He, Youxin Chen, Da Huo, Jin Gao, Yewei Xu, Rui Yang, Yiming Yang, Gongliang Yu
Summary: This study demonstrated the multi-organ toxicity of cylindrospermopsin (CYN) to Daphnia magna through behavioral observation, chemical detection, and transcriptome analysis. CYN inhibits protein synthesis, induces oxidative stress and neurotoxicity, and interferes with energy metabolism in Daphnia magna. Additionally, CYN triggers self-defense responses in Daphnia magna by moderating lipid metabolism and distribution.
ENVIRONMENTAL POLLUTION
(2023)
Article
Marine & Freshwater Biology
Rikke Poulsen, Henrik H. De Fine Licht, Martin Hansen, Nina Cedergreen
Summary: Research has shown that exposure to the fungicide prochloraz can affect three generations of Daphnia magna, leading to genetic effects between different generations. Current risk assessment practices may overlook the delayed effects across generations caused by chemical exposure.
AQUATIC TOXICOLOGY
(2021)
Article
Environmental Sciences
Jin J. Li, Min J. Dai, Jun Z. Xue
Summary: Exposure to disinfection by-products (DBPs) can induce toxic effects in aquatic organisms. This study aimed to investigate the toxicity mechanism of DBPs on Daphnia magna. Results showed that aliphatic DBPs with more bromine substituents had lower toxicity, while aromatic DBPs had higher toxicity. The activities of oxidative stress enzymes CAT and SOD in D. magna showed low correlation with concentration under compound stress, while MDA levels showed a positive correlation. Molecular docking simulations have potential in predicting the toxicity and understanding the mechanism of DBPs. Therefore, it is important to regulate the presence of aromatic DBPs due to their pronounced toxic effects on D. magna.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Tiziano Bonato, Marco Picone, Giovanni Beggio, Marco Vecchiato, Matteo Feltracco, Alberto Pivato, Rossano Piazza
Summary: A chronic toxicity test was conducted using Daphnia magna as the model organism to investigate the effects of four fragrance materials (MX, ADBI, HHCB, and MT). The study found that MX, ADBI, and HHCB had adverse effects on development and reproduction, while MT had no effect. Gene expression analysis showed that ADBI and MX significantly altered gene expression in juvenile D. magna, but HHCB did not. The mixture of the four fragrance materials showed effects at lower concentrations and increased gene expression, suggesting a possible additive or synergistic effect.
Article
Environmental Sciences
Ana Juan-Garcia, Hannu Pakkanen, Cristina Juan, Eeva-Riikka Vehniainen
Summary: This study investigated the potential toxicity and basic mechanism of BEA and ENN B in D. magna. The results showed that these mycotoxins had negative effects on the survival and movement of D. magna at certain concentrations, and they also affected the gene expression in D. magna.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2023)
Article
Engineering, Environmental
Aaron Boyd, Jessica Choi, Grace Ren, Zuo Tong How, Mohamed Gamal El-Din, Keith B. Tierney, Tamzin A. Blewett
Summary: Organic ultraviolet filters (UVFs) are commonly found in aquatic environments and have been found to pose a threat to invertebrate species. However, long-term studies on their effects are limited. This study examined the effects of exposure to UVFs on Daphnia magna and found that while avobenzone and octocrylene had minor and transient effects on reproduction and wet mass, oxybenzone resulted in significant negative impacts on mortality and reproduction, although normal function was largely regained by the next generation.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Environmental Sciences
Harold S. Freeman, Tuane C. dos Santos, Yufei Chen, Josiane A. S. Vendemiatti, Adria C. de Oliveira, Francine I. Vacchi, Nelson R. Vinueza, Gisela A. Umbuzeiro
Summary: This study investigated the chlorine-induced degradation products and ecotoxicity of a madder dye solution, finding that chlorination decreased toxicity to microcrustaceans by 10-fold and removed toxicity to algae compared to the parent dye.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Yuming Zhang, Wenjie Xiu, Miao Yan, Xinrui Guo, Zhihua Ni, Jihai Gu, Ting Tang, Fengsong Liu
Summary: In this study, we investigated the ecotoxicological properties of sulfamethoxazole (SMZ) on Daphnia magna and identified SMZ as an inhibitor against acetylcholinesterase (AChE)/lipase in D. magna, which explained the adverse effects of SMZ on locomotor ability and lipid metabolism at the molecular levels. Our findings provide new insights into understanding the environmental effects of SMZ on freshwater organisms.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Aaron Boyd, Sunil P. Myers, Ivy Luu, Katherine Snihur, Daniel S. Alessi, Kelsey Freitag, Tamzin A. Blewett
Summary: The study found that FPW from wells on the same well pad may have differences in toxic levels, indicating that they cannot be simply considered the same for risk assessment practices.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Environmental
Mengjing Wang, Wen-Xiong Wang
Summary: Microplastics have been found to be widely distributed in aquatic ecosystems and this study investigated their accumulation in the guts of zooplankton using aggregated-induced emission (AIE) technology. Both micro- and nano-sized plastic particles were readily ingested by Daphnia magna, with larger-sized and positively charged particles accumulating the most. The presence of algae inhibited the ingestion and depuration of microplastics. Furthermore, the accumulation of microplastics in D. magna led to acidification of gut pH, increased esterase activity, and induced gut inflammation.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Environmental Sciences
Carolyn Morris, Michael Sakarya, Odelia Koh, Michael O'Donnell
Summary: Increases in major ion concentrations in freshwater, originating from human activities, can have detrimental effects on ecosystem health. The cladoceran Daphnia magna is able to adapt to changes in ion concentrations in the environment, but alterations in ionic composition are associated with toxicity. The study found that increases in Na+ and K+ concentrations in hemolymph correspond to elevations in these ions in ambient water, suggesting a possible predictive relationship between hemolymph ion concentrations and toxicity.
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
(2021)
Article
Biochemistry & Molecular Biology
Jennifer S. S. Strehse, Daniel Hoffmann, Nikolaos Protopapas, Hans-Jorg Martin, Edmund Maser
Summary: This study investigated the products formed during the reduction of 4ONE and 4HNE by Sniffer proteins from Daphnia magna and Daphnia pulex. The results showed that 4HNE is the main product formed from the sniffer-mediated reduction of 4ONE. These findings are important for understanding the reductive metabolism of lipid peroxidation products.
CHEMICO-BIOLOGICAL INTERACTIONS
(2022)
Article
Environmental Sciences
Marlon Luiz Neves da Silva, Diego Jose Nogueira, Jessica Schveitzer Koerich, Vitor Pereira Vaz, Naiara Mottim Justino, Jose Renato Alves Schmidt, Denice Schulz Vicentini, Marcelo Seleme Matias, Armando Borges de Castilhos, Cristiane Funghetto Fuzinatto, William Gerson Matias
Summary: The study identified multigenerational toxicological effects of a binary mixture of silver nanoparticles and glyphosate on Daphnia magna, affecting the survival, growth, reproduction, and age at first brood of the descendants. The mixture showed higher toxicity than individual compounds, sparking further research into the interaction of binary mixtures with organisms.
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
(2021)
Article
Engineering, Environmental
Masanori Terasaki, Michiko Yasuda, Masakazu Makino, Kayoko Shimoi
ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY
(2015)
Article
Environmental Sciences
Qingyue Wang, Keisuke Kobayashi, Senlin Lu, Daisuke Nakajima, Weiqian Wang, Wenchao Zhang, Kazuhiko Sekiguchi, Masanori Terasaki
ENVIRONMENTAL POLLUTION
(2016)
Article
Environmental Sciences
Kohei Sasaki, Masanori Terasaki
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2018)
Article
Chemistry, Multidisciplinary
Masanori Terasaki, Yoshiharu Takemura, Masakazu Makino
ENVIRONMENTAL CHEMISTRY LETTERS
(2012)
Article
Environmental Sciences
Masanori Terasaki, Ryoko Abe, Masakazu Makino, Norihisa Tatarazako
ENVIRONMENTAL TOXICOLOGY
(2015)
Article
Environmental Sciences
Aksorn Saengtienchai, Yoshinori Ikenaka, Shouta M. M. Nakayama, Hazuki Mizukawa, Mayu Kakehi, Nesta Bortey-Sam, Wageh Sobhy Darwish, Toshio Tsubota, Masanori Terasaki, Amnart Poapolathep, Mayumi Ishizuka
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
(2014)
Article
Chemistry, Analytical
Kazuhiko Jozuka, Masanori Terasaki, Masakazu Makino
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2012)
Article
Environmental Sciences
Masanori Terasaki, Michiko Yasuda, Kayoko Shimoi, Kazuhiko Jozuka, Masakazu Makino, Fujio Shiraishi, Daisuke Nakajima
SCIENCE OF THE TOTAL ENVIRONMENT
(2014)
Article
Environmental Sciences
Yoshikazu Gouukon, Michiko T. Yasuda, Hiro Yasukawa, Masanori Terasaki
Article
Environmental Sciences
Warunee Limmun, Nao Ishikawa, Jin Momotori, Masanori Terasaki, Takumu Sato, Kotaro Kikuchi, Makoto Sasamoto, Teruyuki Umita, Ayumi Ito
Summary: In this study, the biodegradability of 4-NP and its degradation products in the presence of ferrate(VI) were evaluated. It was found that 4-NP was not completely mineralized and formed degradation products when ferrate(VI) was added. Mass spectra analysis revealed a unique peak at m/z 223 for the degradation products of 4-NP with Fe(VI). Furthermore, the estrogenic activity of 4-NP in aqueous solution was significantly reduced with increasing Fe(VI) concentration.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Multidisciplinary Sciences
Ryo Omagari, Mayuko Yagishita, Fujio Shiraishi, Ryo Kamata, Masanori Terasaki, Takuya Kubo, Daisuke Nakajima
Summary: This study is the first report on the hTR-antagonist activity of many chemical compounds suspected to be endocrine disruptors. The research found that 46 compounds exhibited antagonist activity, with 10,10-Oxybisphenoxarsine, triphenyltin fluoride, triphenyltin hydroxide, and chlorothalonil showing strong hTR-antagonist activities. The knowledge gained from this study will have significant implications for chemical regulation strategies for human and wildlife health.
Article
Engineering, Environmental
Ryo Omagari, Mayuko Yagishita, Fujio Shiraishi, Shoji F. Nakayama, Masanori Terasaki, Tetsuya Tanigawa, Ichiro Yamauchi, Takuya Kubo, Daisuke Nakajima
Summary: 3,3',5-Triiodothyroacetic acid (TRIAC) is a major contributor to the activity of thyroid hormone receptor agonists in environmental water. It may cause disruption of the thyroid system in living aquatic organisms. The study found that T3 and T4 in influents of sewage treatment plants may be converted into TRIAC during treatment processes.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Multidisciplinary Sciences
Ryo Kamata, Yukiko Okawa, Yuto Hamaguchi, Soma Tabata, Masanori Terasaki, Kazuki Takeda
Summary: This study confirmed the reactivity of mice to skin sensitizing substances and proposed a new protocol (Protocol 2) for a relatively simple skin sensitization test. Compared to other protocols and a local lymph node assay, Protocol 2 showed more pronounced skin inflammation, immune responses, and cell proliferation in auricular lymph nodes.
SCIENTIFIC REPORTS
(2022)
Article
Multidisciplinary Sciences
Fujio Shiraishi, Ryo Kamata, Masanori Terasaki, Hidetaka Takigami, Yoshitaka Imaizumi, Mayuko Yagishita, Daisuke Nakajima
Article
Chemistry, Medicinal
Masanori Terasaki, Takeshi Wada, Satoshi Nagashima, Masakazu Makino, Hiro Yasukawa
CHEMICAL & PHARMACEUTICAL BULLETIN
(2016)