Article
Engineering, Environmental
Weixia Zhang, Yu Tang, Yu Han, Lin Huang, Weishang Zhou, Chaosheng Zhou, Yuan Hu, Rongmao Lu, Fang Wang, Wei Shi, Guangxu Liu
Summary: This study evaluated the immunotoxicity of pentachlorophenol (PCP) on a representative bivalve species and analyzed its impacts on metabolism, energy supply, detoxification, and oxidative stress. The results showed that PCP exposure significantly hampered the immunity of blood clams, disrupted energy metabolism, altered detoxification gene expressions and enzyme activities, and induced oxidative stress. These findings suggest that PCP may pose a threat to the immunity of marine invertebrates and deserve more attention.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Sciences
Joanna M. Goncalves, Vania Serrao Sousa, Margarida Ribau Teixeira, Maria Joao Bebianno
Summary: This study examined the effects of polystyrene nanoplastics on marine mussels and found that nanoplastics induce genotoxicity and oxidative damage in these organisms, overwhelming antioxidant enzymes and causing tissue-dependent toxicity over time. The results suggest that mussel tissues are incapable of coping with the adverse effects of nanoplastics.
Article
Environmental Sciences
Shuoli Ma, Xugang Shu, Wen-Xiong Wang
Summary: In this study, the effects of a DMY-Zn complex on the intestinal microbiome composition and liver biological function of two marine fish species were investigated using high-throughput sequencing technology. The results showed that DMY-Zn improved the anti-oxidative ability of both fish species and had positive impacts on intestine health and carbohydrate utilization in the golden pompano, while significantly enriching unclassified bacteria in the grouper. The responses of intestine microbiome and liver metabolism to DMY-Zn differed, possibly due to their different Zn basal requirements.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Biochemistry & Molecular Biology
Ana Carvalhais, Barbara Pereira, Mariangela Sabato, Rafaela Seixas, Marina Dolbeth, Ana Marques, Sofia Guilherme, Patricia Pereira, Mario Pacheco, Claudia Mieiro
Summary: The study evaluated the toxicity of organic and inorganic UV filters on turbot, finding mild effects on liver metabolic function and behavior. Both isolated and combined exposure did not consistently increase toxicity, providing key information for environmentally safe sunscreen products.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Environmental Sciences
Margot Grimmelpont, Thomas Milinkovitch, Emmanuel Dubillot, Christel Lefrancois
Summary: Marine heatwaves (MHWs) caused by climate change have a negative impact on ecosystems. An experiment on golden grey mullet showed that temperature changes increased metabolism, but short-term MHWs had limited influence on the fish. However, with the projected increase in MHW intensity and frequency, as well as other stressors such as pollution or hypoxia, this species may face greater challenges.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Neeraj Kumar, Shashi Bhushan, Sanjay Kumar Gupta, Prem Kumar, Nitish Kumar Chandan, Dilip Kumar Singh, Paritosh Kumar
Summary: The study analyzed the bioaccumulation of twelve elements in tissues of 30 marine fish species collected from three fishing harbours in Mumbai, India. The results showed increased activity of oxidative stress enzymes, cellular biomarkers, and neurotransmitter enzymes, as well as inhibition of acetylcholine esterase due to pollution in muscle and brain tissues. This suggests that biochemical attributes can be reliable biomarkers for monitoring contaminated marine ecosystems even at low concentrations.
MARINE POLLUTION BULLETIN
(2021)
Article
Plant Sciences
Tong Zhang, Yueqiao Wang, Zhushan Zhao, Sheng Xu, Wenbiao Shen
Summary: This study explores the effect of molecular hydrogen on the degradation of carbendazim, a benzimidazole pesticide, in plants. The findings demonstrate that molecular hydrogen can positively stimulate the degradation of carbendazim by increasing glutathione metabolism. This research provides an environmentally-friendly approach for reducing pesticide residues in crops grown in environments with excessive pesticide use.
Article
Biochemistry & Molecular Biology
Tao Li, Lisha Yuan, Yi Huang, Aoying Zhang, Dun Jiang, Shanchun Yan
Summary: This study investigated the toxic effects of cytisine on H. cunea larvae and evaluated its potential as a botanical insecticide through field simulation experiments. The results showed that cytisine treatment had significant harmful effects on the larvae, including reduced weight, disruption of regulatory genes associated with growth, increased mortality, and oxidative damage. Cytisine treatment also inhibited glycolysis and the tricarboxylic acid cycle pathways and suppressed detoxification enzyme activities and gene expression in the larvae. In field experiments, cytisine demonstrated potent insecticidal activity against H. cunea larvae. Overall, cytisine can be developed as an effective botanical insecticide for controlling H. cunea.
PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY
(2023)
Article
Environmental Sciences
Patricia Rodrigues da Silva, Marcio Borges-Martins, Guendalina Turcato Oliveira
Summary: The study evaluated the impact of herbicide exposure on biomarkers and oxidative balance in Melanophryniscus admirabilis tadpoles. Results showed decreased glycogen levels, reduced lipoperoxidation, and lower levels of superoxide dismutase and catalase. Glutathione S-transferase activity increased in response to herbicide exposure.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Laura Camacho-Jimenez, Ricardo Gonzalez-Ruiz, Gloria Yepiz-Plascencia
Summary: This article summarizes the bioaccumulation and physiological effects of persistent organic pollutants (POPs) in marine crustaceans. The regulation of xenobiotic metabolism and antioxidant enzymes as key sub-cellular mechanisms for detoxification and protection are highlighted.
MARINE ENVIRONMENTAL RESEARCH
(2023)
Review
Medicine, Research & Experimental
Pamela Carvalho Da Rosa, Judit Borras Bertomeu, Luis Fernando Freire Royes, Raul Osiecki
Summary: Peripheral blood mononuclear cells (PBMCs) are specialized immune cells produced in the bone marrow that protect the body from pathogens and can serve as a sentinel tissue source for monitoring physiological changes. Physical exercise has been shown to influence the metabolic state and immune system through its interactions with PBMCs. However, the specific metabolic processes and biomarkers related to exercise-induced changes in PBMCs are not fully understood. This review aims to summarize the current literature on the inflammatory and oxidative stress responses of PBMCs to physical exercise and highlights their potential for assessing exercise-induced metabolic adaptations.
Article
Biochemistry & Molecular Biology
Craig K. Docherty, Anastasiya Strembitska, Christa P. Baker, Fiona F. Schmidt, Kieran Reay, John R. Mercer
Summary: This study reveals the important role of the antiageing protein Klotho in atherosclerotic plaques, improving vascular smooth muscle cell phenotype and mediating energetic switching, which delays the consequences of plaque rupture and enhances cell survival.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Environmental Sciences
Wenyue Xu, Ying Yang, Jiangtao Tian, Xinglin Du, Yucong Ye, Zhiquan Liu, Yiming Li, Yunlong Zhao
Summary: This study investigated the toxicity mechanism of haloxyfop-P-methyl to crustaceans by using transcriptome analysis and physiological changes. The results showed that the median lethal concentration (LC50) of C. dehaani to haloxyfop-P-methyl was 12.886 mg/L at 96 h. Antioxidant system analysis identified MDA, CAT, GR, T-GSH, and GSSG as potential sensitive biomarkers for the oxidative defense response of the crab. Glutathione metabolism, detoxification response, and energy metabolism were significantly enriched, revealing the potential toxic mechanism of haloxyfop-P-methyl to C. dehaani.
ENVIRONMENTAL POLLUTION
(2023)
Article
Biochemistry & Molecular Biology
Min Woo Park, Hyeon Woo Cha, Junhyung Kim, Jung Han Kim, Haesung Yang, Sunmi Yoon, Napissara Boonpraman, Sun Shin Yi, Ik Dong Yoo, Jong-Seok Moon
Summary: The study found elevated levels of NOX4 protein in impaired astrocytes of AD patients and mouse AD models, leading to oxidative stress and ferroptosis. Overexpression of NOX4 resulted in impaired mitochondrial metabolism and oxidative stress, increasing ferroptosis in astrocytes.
Article
Environmental Sciences
Jeonghoon Han, Yeun Park, Hyeryeong Jeong, Jun Chul Park
Summary: PM2.5 has significant effects on the life history traits, oxidative stress levels, and detoxification-related genes of Tigriopus japonicus.
MARINE POLLUTION BULLETIN
(2022)
Article
Environmental Sciences
Bruno Nunes, Joao Santos, Ricardo Dionisio, Gilberto Dias de Alkimin
Summary: With the increasing consumption of pharmaceutical compounds, their presence in the environment has become an undeniable reality. This study evaluated the effects of environmentally relevant concentrations of caffeine on behavior and physiological parameters in freshwater crustaceans. The results showed that caffeine exposure can cause mild behavioral effects, but did not result in any significant biochemical changes.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Sara Rodrigues, Ivo Pinto, Fabio Martins, Nuno Formigo, Sara Cristina Antunes
Summary: This study aimed to assess the suitability of current bioassays as feeding rate assays with Daphnia longispina and growth inhibition assays with Lemna minor in detecting potential ecotoxicity in waters from Portuguese reservoirs. The results showed that D. longispina exhibited some sensitivity to water treatments, while all parameters of L. minor did not detect potential ecotoxicological risks. However, biomarkers/bioassays were found to be consistent with each other. The selected ecotoxicological tools were not sensitive enough to assess water quality in this type of ecosystems.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Sara Rodrigues, Barbara Xavier, Sandra Nogueira, Sara C. Antunes
Summary: This study assessed the ecological status of Ribeira de Silveirinhos in northern Portugal and found that anthropogenic pressures and climate change have led to changes in the hydrological connectivity and ecosystem functions of the river. The upstream areas, surrounded by Eucalyptus monoculture during drought periods, showed low pH values, while the downstream areas subjected to anthropogenic activities, iron waters, and agriculture had high concentrations of phosphorus. The macroinvertebrate community was also affected by the intermittency of flow. The results indicated that Ribeira de Silveirinhos had a poor to moderate ecological status. However, the protection of intermittent rivers and streams is often overlooked, highlighting the need to consider their specific ecological functioning and adapt planning and management models to ensure ecological quality and conservation processes.
Article
Marine & Freshwater Biology
Maria Sousa, Sara Rodrigues, Carlo Pretti, Valentina Meucci, Federica Battaglia, Rosa Freitas, Sara C. Antunes
Summary: Estuarine and coastal ecosystems are experiencing fluctuations in salinity due to global warming and extreme weather events, as well as increased water pollution from organic and inorganic compounds. This study investigated the acute and chronic ecotoxicological effects of metformin, an antidiabetic drug, on Gambusia holbrooki under different salinities. The results showed interactions between salinity and metformin, with increased oxidative stress and altered antioxidant capacity, protein content, and glycogen levels. These findings highlight the potential impact of metformin on aquatic organisms and the importance of considering multiple stressors in ecological risk assessments.
AQUATIC TOXICOLOGY
(2023)
Article
Environmental Sciences
B. S. Diogo, S. C. Antunes, S. Rodrigues
Summary: Biopesticides, such as pyrethrum extract (PE), are considered safer and more sustainable for the environment. However, this study found that PE can have acute and sub-chronic toxic effects on Daphnia magna, a non-target organism. The research demonstrated increased oxidative stress and lipid peroxidation in D. magna exposed to PE, indicating an imbalance in their oxidative metabolism.
ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY
(2023)
Article
Environmental Sciences
B. S. Diogo, S. Rodrigues, O. M. Lage, S. C. Antunes
Summary: This study assessed the effectiveness of different treatments used in wastewater treatment plants (WWTP) using bioassays and biomarkers. The results showed that the tested species exhibited different sensitivities to the collected samples, and the assays using D. magna and L. minor demonstrated their potential for monitoring and assessing the environmental impact of wastewater effluents.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2023)
Article
Environmental Sciences
Ivo Pinto, Sandra Nogueira, Sara Rodrigues, Nuno Formigo, Sara C. C. Antunes
Summary: This study revealed the importance of zooplankton as a bioindicator for assessing water quality in reservoirs. The current monitoring criteria are insufficient for a comprehensive evaluation of ecological status. By analyzing the zooplankton community, it is possible to accurately determine the water quality and different metrics provide valuable information for assessing water quality status.
Article
Environmental Sciences
Barbara S. Diogo, Aracelis Narayan, Catarina Mansilha, Jorge Espinha Marques, Deolinda Flores, Sara C. Antunes
Summary: This study assessed the ecotoxicological effects of soil elutriates from different soil types in the PejAo Coalfield on Lactuca sativa. The presence of toxic elements in the elutriates affected the development of L. sativa, inhibiting germination and causing morphological alterations. The results emphasize the importance of using elutriate samples to evaluate the phytotoxicity of coal mining waste.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Meeting Abstract
Pathology
M. de Brito Pereira, S. Carralas Antunes, E. Vitorino, R. Ilgenfritz, J. Tavares
Meeting Abstract
Pathology
C. Dahlstedt-Ferreira, S. Carralas Antunes, R. Oliveira, D. Gomes Pinto
Article
Environmental Sciences
Emily Curren, Sandric Chee Yew Leong
Summary: Microplastics in marine ecosystems serve as microhabitats for diverse toxic plankton species, including viable resting cysts of dinoflagellates. The diversity of plankton communities on the plastisphere is influenced by anthropogenic factors. This study highlights the importance of plastics as vectors for the transport of harmful opportunistic species in the marine environment.
MARINE ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Vladimir G. Dvoretsky, Alexander G. Dvoretsky
Summary: The Barents Sea, as the largest Arctic shelf region, plays a vital role in supporting commercial fisheries. The ecosystem of this region is significantly influenced by both warm Atlantic Water (AW) and cold Arctic Water (ARW), resulting in distinct frontal zones. This study found that copepod populations, particularly herbivorous copepods, were most abundant and productive in the Polar Front, as well as in the eastern frontal zones. The geographic positions of sampling stations, depth, and chlorophyll a concentration were identified as the main factors influencing copepod biomass and production.
MARINE ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Alberto Rovellini, Charlotte L. Mortimer, Matthew R. Dunn, Elizabeth A. Fulton, Jamaluddin Jompa, Abdul Haris, James J. Bell
Summary: This study compared the structural complexity of coral- and sponge-dominated areas of an Indonesian coral reef using 3D photogrammetry. The results showed that smaller-scale refugia were reduced in sponge-dominated reefs, potentially impacting smaller reef fauna.
MARINE ENVIRONMENTAL RESEARCH
(2024)
