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Zhang P, Liu N, Xue M, Zhang M, Xiao Z, Xu C, Fan Y, Liu W, Qiu J, Zhang Q, Zhou Y. Anti-Inflammatory and Antioxidant Properties of Squalene in Copper Sulfate-Induced Inflammation in Zebrafish ( Danio rerio). Int J Mol Sci 2023; 24:ijms24108518. [PMID: 37239865 DOI: 10.3390/ijms24108518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Revised: 03/28/2023] [Accepted: 05/08/2023] [Indexed: 05/28/2023] Open
Abstract
Long-term or excessive oxidative stress can cause serious damage to fish. Squalene can be added to feed as an antioxidant to improve the body constitution of fish. In this study, the antioxidant activity was detected by 2,2-diphenyl-1-acrylhydrazyl (DPPH) test and fluorescent probe (dichloro-dihydro-fluorescein diacetate). Transgenic Tg (lyz: DsRed2) zebrafish were used to evaluate the effect of squalene on CuSO4-induced inflammatory response. Quantitative real-time reverse transcription polymerase chain reaction was used to examine the expression of immune-related genes. The DPPH assay demonstrated that the highest free radical scavenging exerted by squalene was 32%. The fluorescence intensity of reactive oxygen species (ROS) decreased significantly after 0.7% or 1% squalene treatment, and squalene could exert an antioxidative effect in vivo. The number of migratory neutrophils in vivo was significantly reduced after treatment with different doses of squalene. Moreover, compared with CuSO4 treatment alone, treatment with 1% squalene upregulated the expression of sod by 2.5-foldand gpx4b by 1.3-fold to protect zebrafish larvae against CuSO4-induced oxidative damage. Moreover, treatment with 1% squalene significantly downregulated the expression of tnfa and cox2. This study showed that squalene has potential as an aquafeed additive to provide both anti-inflammatory and antioxidative properties.
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Affiliation(s)
- Peng Zhang
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China
- National Pathogen Collection Center for Aquatic Animals, Shanghai Ocean University, Shanghai 201306, China
| | - Naicheng Liu
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China
- National Pathogen Collection Center for Aquatic Animals, Shanghai Ocean University, Shanghai 201306, China
| | - Mingyang Xue
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China
| | - Mengjie Zhang
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China
- National Pathogen Collection Center for Aquatic Animals, Shanghai Ocean University, Shanghai 201306, China
| | - Zidong Xiao
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China
| | - Chen Xu
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China
| | - Yuding Fan
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China
| | - Wei Liu
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China
| | - Junqiang Qiu
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China
- National Pathogen Collection Center for Aquatic Animals, Shanghai Ocean University, Shanghai 201306, China
| | - Qinghua Zhang
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China
- National Pathogen Collection Center for Aquatic Animals, Shanghai Ocean University, Shanghai 201306, China
| | - Yong Zhou
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China
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Liu N, Zhang P, Xue M, Zhang M, Xiao Z, Xu C, Fan Y, Liu W, Wu Y, Wu M, Zhang Q, Zhou Y. Anti-inflammatory and antioxidant properties of rice bran oil extract in copper sulfate-induced inflammation in zebrafish (Danio rerio). FISH & SHELLFISH IMMUNOLOGY 2023; 136:108740. [PMID: 37061070 DOI: 10.1016/j.fsi.2023.108740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 03/30/2023] [Accepted: 04/09/2023] [Indexed: 06/19/2023]
Abstract
Tocotrienols have strong antioxidant properties; however, tocotrienol has not been investigated in detail in aquatic products. In this study, the anti-inflammatory and antioxidant activities of the tocotrienol-rich fraction from rice bran oil and its potential mechanism were verified in a zebrafish CuSO4 inflammation model. The in vitro antioxidant activity was evaluated using the 2,2-Diphenyl-1-picrylhydrazyl (DPPH) stable radical method. The copper chelating activity was determined using the pyrocatechol violet method. Intracellular reactive oxygen species in zebrafish were detected using a fluorescent ROS probe. Transgenic Tg (lyz: DsRed2) zebrafish were used for neutrophil transmigration assays. The mRNA expression levels of antioxidant and pro-inflammatory factor genes were measured using quantitative real-time reverse transcription PCR. In the concentration range tested, 100 μg/mL TRF had the highest copper chelating activity (10%). TRF showed DPPH-free radical scavenging ability, which was 53% at 100 μg/mL TRF. TRF effectively repressed ROS generation and inhibited neutrophil migration to the inflamed site. Moreover, TRF upregulated the expression of antioxidant genes sod and gpx4b, inhibited the expression of pro-inflammatory factors tnfa and il8, and suppressed CuSO4-induced inflammation. In conclusion, TRF has significant anti-inflammatory and antioxidant properties, which supports the use of TRF as an aquatic feed additive to improve the anti-inflammatory and antioxidant capacity of aquatic products.
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Affiliation(s)
- Naicheng Liu
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, 430223, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China; National Pathogen Collection Center for Aquatic Animals, Shanghai Ocean University, China
| | - Peng Zhang
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, 430223, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China; National Pathogen Collection Center for Aquatic Animals, Shanghai Ocean University, China
| | - Mingyang Xue
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, 430223, China
| | - Mengjie Zhang
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, 430223, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China; National Pathogen Collection Center for Aquatic Animals, Shanghai Ocean University, China
| | - Zidong Xiao
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, 430223, China
| | - Chen Xu
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, 430223, China
| | - Yuding Fan
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, 430223, China
| | - Wei Liu
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, 430223, China
| | - Yeying Wu
- Wuhan Dynamic Life Science Co, Ltd, Wuhan, 430223, China
| | - Minglin Wu
- Fisheries Research Institute, Anhui Academy of Agricultural Sciences, Hefei, 230031, China
| | - Qinghua Zhang
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China; National Pathogen Collection Center for Aquatic Animals, Shanghai Ocean University, China.
| | - Yong Zhou
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, 430223, China.
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3
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Facile green synthesized C-4-Hydroxy-3-methoxyphenylcalix[4]Resorcinarene (CHMPCR) for photometric sensing of Fe3+ and Cu2+ ions. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.135060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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4
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Chen X, Wang J, Xie Y, Ma Y, Zhang J, Wei H, Abdou AIE. Physiological response and oxidative stress of grass carp (Ctenopharyngodon idellus) under single and combined toxicity of polystyrene microplastics and cadmium. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 245:114080. [PMID: 36152428 DOI: 10.1016/j.ecoenv.2022.114080] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 09/07/2022] [Accepted: 09/11/2022] [Indexed: 06/16/2023]
Abstract
The harm of microplastics (MPs) to aquatic ecosystems is caused by their stable and non-degradable properties. Additionally, the pollutants such as heavy metals in the water are easy to be adsorbed on their surface with their small particle size and large specific surface area, resulting in environmental pollution. Therefore, the study on the mixture toxicity of MPs and heavy metals has theoretical significance for the risk assessment of aquatic ecosystems. In the present study, 10 nm polystyrene (PS) and cadmium (Cd) were used, and their individual and mixture acute toxicities on grass carp (Ctenopharyngodon idellus) were examined. The results indicated that the mortality of the fish increased with the concentration from 10 mg L-1 to 20 mg L-1, and the existence of PS-MPs elevated the Cd concentrations in the fish and accelerated the death. Whether the Cd and/or the PS-MPs concentrations caused varying degrees of damage to the gills, kidney, liver, and muscles of the grass carp, especially under the highest concentrations (20 mg L-1 Cd + 300 μg L-1 PS-MPs). Moreover, low concentrations of PS-MPs alone (30 μg L-1 PS-MPs) significantly increased the superoxide dismutase (SOD) activity in the kidney and liver, reaching 12.43% and 14.38%, respectively (P < 0.05). The peroxidase (POD) activity was increased only in the kidney, up to 25.95% (P < 0.05). Also, significant reductions in SOD and POD activities were observed in the combination of high concentration of Cd (20 mg L-1) and 300 μg L-1 PS-MPs (P < 0.05). To the best of our knowledge, there are few studies on the impact of combined toxicity of PS-MPs and Cd on grass carp under laboratory conditions. Therefore, these findings may provide a theoretical guarantee for pollution prevention and control in the aquatic ecosystem.
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Affiliation(s)
- Xuan Chen
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Jing Wang
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Yijie Xie
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Yibing Ma
- Guangdong-Hongkong-Macao Joint Laboratory of Collaborative Innovation for Environmental Quality, Macao Environmental Research Institute, Macau University of Science and Technology, 999078, China
| | - Jiaen Zhang
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China; Guangdong Provincial Key Laboratory of Eco-Circular Agriculture, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China; Guangdong Engineering Research Center for Modern Eco-Agriculture and Circular Agriculture, Guangzhou 510642, China; Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, Guangzhou 510642, China.
| | - Hui Wei
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China; Guangdong Provincial Key Laboratory of Eco-Circular Agriculture, Guangzhou 510642, China; Guangdong Engineering Research Center for Modern Eco-Agriculture and Circular Agriculture, Guangzhou 510642, China; Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, Guangzhou 510642, China
| | - Ahmed Ibrahim Elsayed Abdou
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China; Soil Science Department, Faculty of Agriculture, Zagazig University, Zagazig 44519, Egypt
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5
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Teranishi K. Near-infrared chemiluminescence imaging of superoxide anion production in kidneys with iron 3+-nitrilotriacetate-induced acute renal oxidative stress in rats. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2022; 228:112391. [PMID: 35074679 DOI: 10.1016/j.jphotobiol.2022.112391] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 12/02/2021] [Accepted: 01/13/2022] [Indexed: 06/14/2023]
Abstract
Iron-catalyzed oxidative stress generates reactive oxygen species in the kidney and induces oxidative damage including lipid, protein, and DNA modifications which induces renal injury and may lead to cancer. An analysis of oxidative stress dynamics by reactive oxygen species has not been performed non-invasively in real time in intact kidneys and is a significant challenge in biology and medicine. Here, I report that MCLA-800 is a near-infrared chemiluminescent probe that visualizes the dynamics of superoxide anion (O2•-) production and the upstream generation of reactive oxygen species in living rat kidneys suffering acute renal oxidative stress induced by intraperitoneal administration of iron3+-nitrilotriacetate (Fe3+-NTA) as a representative Fe3+ chelate. MCLA-800 was intravenously injected at 250 nmol/kg body weight and immediately transported to the kidneys with the emitting light dependent on O2•- production. The magnitude of O2•- production correlated with the Fe3+-NTA dose. O2•- was continuously produced in the blood stream following Fe3+-NTA injection at 0.15 mmol/kg body weight, while peak production in the renal cortex occurred at 24 h, then decreased to the background level at 72 h. This study clearly revealed the dynamics of Fe3+-NTA-mediated O2•- production in the living kidney by chemiluminescent imaging of O2•- production using MCLA-800.
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Affiliation(s)
- Katsunori Teranishi
- Graduate School of Bioresources, Mie University, 1577 Kurimamachiya, Tsu, Mie 514-8507, Japan.
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Arojojoye OA, Oyagbemi AA, Ola-Davies OE, Asaolu RO, Shittu ZO, Hassan BA. Assessment of water quality of selected rivers in the Niger Delta region of Nigeria using biomarkers in Clarias gariepinus. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:22936-22943. [PMID: 33433829 DOI: 10.1007/s11356-020-11879-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 11/30/2020] [Indexed: 06/12/2023]
Abstract
Petroleum exploration has continued to impact negatively the Niger Delta region of Nigeria. Oil spills from petroleum exploration contaminate both the aquatic and non- aquatic environments and destroy the ecosystem which makes people in these regions to be prone to diseases such as cancer, cardiovascular diseases, neurodegenerative disease, infertility, and sterility and also poverty. Some oxidative stress markers of the liver and muscle of fish (Clarias gariepinus) from Apata, Araromi, and Mahin rivers (located in the Niger Delta region) were compared with those of fish samples from a clean fish farm (control) in order to assess the level of pollution of the rivers. A significant increase in malondialdehyde level and myeloperoxidase (MPO) activity as well as alterations in antioxidant status (glutathione peroxidase, superoxide dismutase, reduced glutathione, and glutathione S-transferase) was observed in the organs of fish samples from Apata, Araromi, and Mahin rivers compared with the control. A significant increase in the frequency of micronucleated polychromatic erythrocytes (MnPCEs) was also observed in the fish samples from these rivers in comparison with the control. Based on results of our research, we can conclude that these rivers are polluted mainly by oil spillage and other industrial activities; therefore, the consumption of aquatic organisms from these rivers and the use of water from the rivers for domestic activities might be unsafe.
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Affiliation(s)
- Oluwatosin Adetola Arojojoye
- Department of Biochemistry, Faculty of Basic Medical and Applied Sciences, Lead City University Ibadan, Ibadan, Nigeria.
| | - Ademola Adetokunbo Oyagbemi
- Department of Veterinary Physiology and Biochemistry, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria
| | - Olufunke Eunice Ola-Davies
- Department of Veterinary Physiology and Biochemistry, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria
| | - Racheal Oluwabukola Asaolu
- Department of Biochemistry, Faculty of Basic Medical and Applied Sciences, Lead City University Ibadan, Ibadan, Nigeria
| | - Zainab Olabanji Shittu
- Department of Biochemistry, Faculty of Basic Medical and Applied Sciences, Lead City University Ibadan, Ibadan, Nigeria
| | - Barakat Adebukola Hassan
- Department of Biochemistry, Faculty of Basic Medical and Applied Sciences, Lead City University Ibadan, Ibadan, Nigeria
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7
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Güller U, Önalan Ş, Arabacı M, Karataş B, Yaşar M, Küfrevioğlu Öİ. Effects of different LED light spectra on rainbow trout (Oncorhynchus mykiss): in vivo evaluation of the antioxidant status. FISH PHYSIOLOGY AND BIOCHEMISTRY 2020; 46:2169-2180. [PMID: 32860607 DOI: 10.1007/s10695-020-00865-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Accepted: 08/24/2020] [Indexed: 06/11/2023]
Abstract
Rainbow trout (Oncorhynchus mykiss) farming is one of the major aquacultures in Turkey. Some conditions in fish farming can induce oxidative stress leading to the deterioration in properties such as appearance/color, texture, and flavor in fish meat. This situation may cause the consumer not to prefer edible fish. Although there are some studies on the impacts of light intensity on fish welfare, the changes in the antioxidant enzyme activities have not been elucidated. In the current study, it was intended to examine in rainbow trout how cultivating under different wavelengths affects the antioxidant enzymes and acetylcholine esterase (AChE) activity, because its activity is associated with oxidative stress, and also the determination of which light is suitable for fish welfare was aimed. Rainbow trout larvae were grown under four lights with different wavelengths: natural sunlight and incandescent long-wave (red light), medium-wave (green light), and short-wave (blue light) LED light. The experiment lasted for 64 days. Biochemical assays were carried on in the brain, gill, and liver of rainbow trout. Antioxidant enzymes and AChE activity, which play an important role in the central nervous system, were assayed. In gill tissues, superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), glucose 6 phosphate dehydrogenase (G6PD), glutathione reductase (GR), glutathione S-transferase (GST), and AChE activities increased under all three light wavelengths. In the liver, while activities of antioxidant enzymes and AChE decreased in red light, all of them increased in blue and green light. In the brain, GPx, GST, G6PD, and SOD activities were reduced but AChE activity did not alter under all three light sources. In conclusion, light sources with different spectral structures caused important changes in the activities of antioxidant enzymes in rainbow trout. On this basis, it may be thought that this may be a response to the changing redox status of a cell. Based on our results, blue light sources may be suggested for fish welfare in rainbow trout culture, and providing fish welfare by changing light sources can be easy and cheap in fish farming.
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Affiliation(s)
- Uğur Güller
- Faculty of Engineering, Department of Food Engineering, Iğdır University, Iğdır, Turkey.
| | - Şükrü Önalan
- Faculty of Aquaculture, Department of Aquaculture, Van Yüzüncü Yıl University, Van, Turkey
| | - Muhammed Arabacı
- Faculty of Aquaculture, Department of Aquaculture, Van Yüzüncü Yıl University, Van, Turkey
| | - Boran Karataş
- Faculty of Aquaculture, Department of Aquaculture, Van Yüzüncü Yıl University, Van, Turkey
| | - Muhterem Yaşar
- Faculty of Aquaculture, Department of Aquaculture, Van Yüzüncü Yıl University, Van, Turkey
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Alsiary RA, Alghrably M, Saoudi A, Al-Ghamdi S, Jaremko L, Jaremko M, Emwas AH. Using NMR spectroscopy to investigate the role played by copper in prion diseases. Neurol Sci 2020; 41:2389-2406. [PMID: 32328835 PMCID: PMC7419355 DOI: 10.1007/s10072-020-04321-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Accepted: 02/29/2020] [Indexed: 12/31/2022]
Abstract
Prion diseases are a group of rare neurodegenerative disorders that develop as a result of the conformational conversion of normal prion protein (PrPC) to the disease-associated isoform (PrPSc). The mechanism that actually causes disease remains unclear. However, the mechanism underlying the conformational transformation of prion protein is partially understood-in particular, there is strong evidence that copper ions play a significant functional role in prion proteins and in their conformational conversion. Various models of the interaction of copper ions with prion proteins have been proposed for the Cu (II)-binding, cell-surface glycoprotein known as prion protein (PrP). Changes in the concentration of copper ions in the brain have been associated with prion diseases and there is strong evidence that copper plays a significant functional role in the conformational conversion of PrP. Nevertheless, because copper ions have been shown to have both a positive and negative effect on prion disease onset, the role played by Cu (II) ions in these diseases remains a topic of debate. Because of the unique properties of paramagnetic Cu (II) ions in the magnetic field, their interactions with PrP can be tracked even at single atom resolution using nuclear magnetic resonance (NMR) spectroscopy. Various NMR approaches have been utilized to study the kinetic, thermodynamic, and structural properties of Cu (II)-PrP interactions. Here, we highlight the different models of copper interactions with PrP with particular focus on studies that use NMR spectroscopy to investigate the role played by copper ions in prion diseases.
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Affiliation(s)
- Rawiah A. Alsiary
- King Abdullah International Medical Research Center (KAIMRC), Jeddah, Saudi Arabia/King Saud bin Abdulaziz University for Health Sciences (KSAU-HS), Jeddah, Saudi Arabia
| | - Mawadda Alghrably
- Biological and Environmental Science and Engineering (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, Kingdom of Saudi Arabia
| | - Abdelhamid Saoudi
- Oncology, Ministry of National Guard Health Affairs, Jeddah, Saudi Arabia. King Abdullah International Medical Research Center (KAIMRC), Jeddah, Saudi Arabia/King Saud bin Abdulaziz University for Health Sciences (KSAU-HS), Jeddah, Saudi Arabia
| | - Suliman Al-Ghamdi
- Oncology, Ministry of National Guard Health Affairs, Jeddah, Saudi Arabia. King Abdullah International Medical Research Center (KAIMRC), Jeddah, Saudi Arabia/King Saud bin Abdulaziz University for Health Sciences (KSAU-HS), Jeddah, Saudi Arabia
| | - Lukasz Jaremko
- Biological and Environmental Science and Engineering (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, Kingdom of Saudi Arabia
| | - Mariusz Jaremko
- Biological and Environmental Science and Engineering (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, Kingdom of Saudi Arabia
| | - Abdul-Hamid Emwas
- Imaging and Characterization Core Lab, King Abdullah University of Science and Technology (KAUST), Thuwal, Kingdom of Saudi Arabia
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Chakrabarti P, Carlson EA, Lucas HM, Melathopoulos AP, Sagili RR. Field rates of Sivanto™ (flupyradifurone) and Transform® (sulfoxaflor) increase oxidative stress and induce apoptosis in honey bees (Apis mellifera L.). PLoS One 2020; 15:e0233033. [PMID: 32437365 PMCID: PMC7241780 DOI: 10.1371/journal.pone.0233033] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Accepted: 04/27/2020] [Indexed: 01/01/2023] Open
Abstract
Pesticide exposures can have detrimental impacts on bee pollinators, ranging from immediate mortality to sub-lethal impacts. Flupyradifurone is the active ingredient in Sivanto™ and sulfoxaflor is the active ingredient in Transform®. They are both relatively new insecticides developed with an intent to reduce negative effects on bees, when applied to bee-attractive crops. With the growing concern regarding pollinator health and pollinator declines, it is important to have a better understanding of any potential negative impacts, especially sub-lethal, of these pesticides on bees. This study reports novel findings regarding physiological stress experienced by bees exposed to field application rates of these two insecticides via a Potter Tower sprayer. Two contact exposure experiments were conducted-a shorter 6-hour study and a longer 10-day study. Honey bee mortality, sugar syrup and water consumption, and physiological responses (oxidative stress and apoptotic protein assays) were assessed in bees exposed to Sivanto™ and Transform®, and compared to bees in control group. For the longer, 10-day contact exposure experiment, only the Sivanto™ group was compared to the control group, as high mortality recorded in the sulfoxaflor treatment group during the shorter contact exposure experiment, made the latter group unfeasible to test in the longer 10-days experiment. In both the studies, sugar syrup and water consumptions were significantly different between treatment groups and controls. The highest mortality was observed in Transform® exposed bees, followed by the Sivanto™ exposed bees. Estimates of reactive oxygen/nitrogen species indicated significantly elevated oxidative stress in both pesticide treatment groups, when compared to controls. Caspase-3 protein assays, an indicator of onset of apoptosis, was also significantly higher in the pesticide treatment groups. These differences were largely driven by post exposure duration, indicating sub-lethal impacts. Further, our findings also emphasize the need to revisit contact exposure impacts of Sivanto™, given the sub-lethal impacts and mortality observed in our long-term (10-day) contact exposure experiment.
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Affiliation(s)
| | - Emily A. Carlson
- Department of Horticulture, Oregon State University, Corvallis, Oregon, United States of America
| | - Hannah M. Lucas
- Department of Horticulture, Oregon State University, Corvallis, Oregon, United States of America
| | - Andony P. Melathopoulos
- Department of Horticulture, Oregon State University, Corvallis, Oregon, United States of America
| | - Ramesh R. Sagili
- Department of Horticulture, Oregon State University, Corvallis, Oregon, United States of America
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10
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Kepp KP, Squitti R. Copper imbalance in Alzheimer’s disease: Convergence of the chemistry and the clinic. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2019.06.018] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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11
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Uluturhan E, Darılmaz E, Kontas A, Bilgin M, Alyuruk H, Altay O, Sevgi S. Seasonal variations of multi-biomarker responses to metals and pesticides pollution in M. galloprovincialis and T. decussatus from Homa Lagoon, Eastern Aegean Sea. MARINE POLLUTION BULLETIN 2019; 141:176-186. [PMID: 30955723 DOI: 10.1016/j.marpolbul.2019.02.035] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 02/14/2019] [Accepted: 02/15/2019] [Indexed: 06/09/2023]
Abstract
Biomarkers (CAT, SOD, GPx, and AChE) were investigated in hepatopancreas and soft tissues of mussels (Mytilus galloprovincialis) and clams (Tapes decussatus) in response to metal and pesticide pollutions in Homa Lagoon. Mussel and clam samples were seasonally collected in January, May, August and November 2015. According to the results, higher metal concentrations determined in the soft tissues of both species in January. Hepatopancreas was found to accumulate higher levels of metals than soft tissue. Metal deposition potential in clams were higher than mussels. Pesticide levels were below detection limits in clams. In mussels, only 4,4'-DDE was detected in soft tissues and hepatopancreas in November. Highest AChE, CAT, SOD and GPx activities in mussels were determined in January. On the other hand, maximum AChE and CAT activities in clams were found in November. Seasonal variations of metals and biomarker levels might be related to species-specific physiology and environmental conditions.
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Affiliation(s)
- Esin Uluturhan
- Dokuz Eylul University, Institute of Marine Sciences and Technology, Inciraltı, 35340 Izmir, Turkey.
| | - Enis Darılmaz
- Dokuz Eylul University, Institute of Marine Sciences and Technology, Inciraltı, 35340 Izmir, Turkey
| | - Aynur Kontas
- Dokuz Eylul University, Institute of Marine Sciences and Technology, Inciraltı, 35340 Izmir, Turkey
| | - Mustafa Bilgin
- Dokuz Eylul University, Institute of Natural and Applied Sciences, Tinaztepe Campus, Izmir, Turkey
| | - Hakan Alyuruk
- Dokuz Eylul University, Institute of Marine Sciences and Technology, Inciraltı, 35340 Izmir, Turkey
| | - Oya Altay
- Dokuz Eylul University, Institute of Marine Sciences and Technology, Inciraltı, 35340 Izmir, Turkey
| | - Selin Sevgi
- Dokuz Eylul University, Institute of Natural and Applied Sciences, Tinaztepe Campus, Izmir, Turkey
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12
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Ajima MNO, Pandey PK, Kumar K, Poojary N. Alteration in DNA structure, molecular responses and Na + -K + -ATPase activities in the gill of Nile tilapia, Oreochromis niloticus (Linnaeus, 1758) in response to sub-lethal verapamil. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 147:809-816. [PMID: 28954371 DOI: 10.1016/j.ecoenv.2017.09.050] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Revised: 09/16/2017] [Accepted: 09/17/2017] [Indexed: 06/07/2023]
Abstract
The ecotoxicological consequences of residues from pharmaceutical drugs on aquatic biota have necessitated the development of sensitive and reliable techniques to assess the impact of these xenobiotics on aquatic organisms. This study investigated the alteration in DNA structure, molecular responses and the activities of Na+ -K+ -ATPase and antioxidant enzymes in the gill of Nile tilapia, Oreochromis niloticus, exposed to long-term effects at the concentrations (0.14, 0.28 and 0.57mgL-1) of verapamil in static renewal system for 15, 30, 45 and 60 days. Evaluation of DNA structure, using single cell gel electrophoresis, revealed certain degree of DNA damages in the gill in a time and concentration-dependent relationship. Transcription of mRNA of superoxide dismutase (sod), catalase (cat) and heat shock protein (hsp70) genes in the gill of the fish showed the genes were up-regulated. Na+-K+-ATPase activity was inhibited in a concentration and time dependent manner. The indices of oxidative stress biomarkers (lipid peroxidation and carbonyl protein) as well as superoxide dismutase, glutathione peroxidase, glutathione-S-transferase were elevated in the treated fish in comparison to the control. Further, the level of reduced glutathione and catalase activity were inhibited at 0.28mgL-1 after day 30. Long-term exposure to sub-lethal concentration of verapamil can cause DNA damages, molecular effects and oxidative stress in O. niloticus. The biomarkers analysed can be used as early warning signals in environmental biomonitoring and assessment of drug contamination in aquatic ecosystem.
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Affiliation(s)
- Malachy N O Ajima
- Department of Fisheries and Aquaculture Technology, Federal University of Technology, Owerri, Nigeria.
| | - Pramod K Pandey
- College of Fisheries, Central Agriculture University, Agartala, Tripura, India
| | - Kundan Kumar
- Aquatic Environment and Health Management Division, ICAR, Central Institute of Fisheries Education, Mumbai, India
| | - Nalini Poojary
- Aquatic Environment and Health Management Division, ICAR, Central Institute of Fisheries Education, Mumbai, India
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13
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Ubani-Rex OA, Saliu JK, Bello TH. Biochemical Effects of the Toxic Interaction of Copper, Lead and Cadmium on Clarias gariepinus. J Health Pollut 2017; 7:38-48. [PMID: 30524839 PMCID: PMC6221451 DOI: 10.5696/2156-9614-7.16.38] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Accepted: 10/18/2017] [Indexed: 04/18/2023]
Abstract
BACKGROUND The presence of heavy metals in the aquatic environment is a concern because of potential toxicity and threats to plant and animal life. OBJECTIVE The present study evaluated the joint action toxicity and biochemical effects of sublethal concentrations of copper (Cu), lead (Pb) and cadmium (Cd) against Clarias gariepinus over a period of 28 days. METHODS We procured fingerlings (weight: 5-8 g; length: 4.5-6.0 cm) and juveniles (weight: 20-25 g; length: 14.5-17.5 cm) from a commercial fish farm in Bariga, Lagos state, Nigeria. Test toxicants were selected from the analyzed heavy metals in the field based on their deviation from World Health Organization, Federal Environmental Protection Agency and United States Environmental Protection Agency standards. Fish were randomly loaded into a 4-L glass aquaria for the bioassay per toxicant concentration of two replicates and untreated control (dechlorinated tap water). RESULTS The derived 96 hour lethal concentration 50 (LC50) value of Cu (2.11 mg/L) was the most toxic followed by Cd (24.18 mg/L) and Pb (34.48 mg/L), which was the least toxic of the singly tested pollutants. The analysis of dose-response data of the joint action toxicity of Cu and Cd, and Cu and Pb determined 96 hour LC50 values of 1.804 mg/L and 2.15 mg/L, respectively. The interactions between the mixture of Cu:Cd conformed with the model of synergism (synergistic ratio (SR)>1 and relative toxic units (RTU)>1), while the interaction between Cu:Pb was found to be antagonistic (SR<1), with an SR value of 0.98. The biochemical effects study revealed that malondialdehyde (MDA) levels decreased significantly (P<0.05) in the exposed fish, reduced glutathione was not significant at (P<0.05), and levels of superoxide dismutase (SOD), catalase, glucose and cholesterol were significantly different (P<0.05). DISCUSSION The observed increased in the glutathione level in the Cu:Cd mixture and a corresponding decrease in MDA concentration in the liver of test animals revealed the ability of fish to overcome the effects of lipid peroxidation in this group because the Cu ion is displaced by Cd, and the fish were able to catalyze the breakdown of hydrogen peroxide via the Fenton reaction. CONCLUSIONS Further studies on the joint action toxicity of heavy metals are needed in order to further determine their concentration in the local environment. ETHICS APPROVAL Study protocols were approved by the Health Research Ethics Committee of the University of Lagos.
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Affiliation(s)
| | - Joseph Kayode Saliu
- Ecotoxicology Unit, Department of Zoology, University of Lagos, Lagos, Nigeria
| | - Taiwo Hassan Bello
- Ecotoxicology Unit, Department of Zoology, University of Lagos, Lagos, Nigeria
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14
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Mansour ATE, Goda AA, Omar EA, Khalil HS, Esteban MÁ. Dietary supplementation of organic selenium improves growth, survival, antioxidant and immune status of meagre, Argyrosomus regius, juveniles. FISH & SHELLFISH IMMUNOLOGY 2017; 68:516-524. [PMID: 28774847 DOI: 10.1016/j.fsi.2017.07.060] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Revised: 07/18/2017] [Accepted: 07/30/2017] [Indexed: 05/15/2023]
Abstract
Oxidative stress is considered one of the main obstacles to immune competence and high mortality rate of marine fish larvae due to the high dietary polyunsaturated fatty acids and accelerated metabolic rate. This study was carried out to assess the effect of different dietary selenium (Se) yeast on growth, antioxidant status, hematological changes, and cellular and humoral immune parameters in meagre (Argyrosomus regius). Juvenile specimens (3.20 ± 0.17 g) were randomly assigned to four experimental groups, a control group fed a basal diet and another three groups fed Se-supplemented diets at doses of 1, 2 and 3 mg Se-yeast kg-1 diet for 63 days and the final analyzed selenium concentrations were 0.77, 1.51, 2.97 and 3.98 mg Se kg-1 diet, respectively. The results indicated that growth performance, feed conversion ratio and survival were significantly improved with 2.97 and 3.98 mg Se-yeast kg-1 compared to the control group. The catalase, superoxide dismutase activities and total antioxidant status were significantly increased, and thiobarbituric reactive substances in liver homogenate were significantly decreased with increasing Se supplementation respect to the control fish in a dose-dependent manner. Furthermore, hematological and innate immune parameters (immunoglobulin, lysozyme, myeloperoxidase, ACH50 and respiratory burst activity) were also significantly higher in fish fed the Se-yeast supplemented diets compared to the control group. The results demonstrated that the supplementation of 3.98 mg Se-yeast kg-1 diet improves growth performance, antioxidant balance and innate immune status of meagre juveniles.
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Affiliation(s)
- Abdallah Tag-Eldein Mansour
- Fish and Animal Production Department, Faculty of Agriculture (Saba Basha), Alexandria University, Egypt; Fish Innate Immune System Group, Department of Cell Biology and Histology, Faculty of Biology, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, 30100 Murcia, Spain
| | | | - Eglal Ali Omar
- Fish and Animal Production Department, Faculty of Agriculture (Saba Basha), Alexandria University, Egypt
| | - Hala Saber Khalil
- Aquaculture Division, National Institute of Oceanography and Fisheries, Alexandria, Egypt
| | - Maria Ángeles Esteban
- Fish Innate Immune System Group, Department of Cell Biology and Histology, Faculty of Biology, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, 30100 Murcia, Spain.
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15
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Kepp KP. Genotype-property patient-phenotype relations suggest that proteome exhaustion can cause amyotrophic lateral sclerosis. PLoS One 2015; 10:e0118649. [PMID: 25798606 PMCID: PMC4370410 DOI: 10.1371/journal.pone.0118649] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2014] [Accepted: 01/08/2015] [Indexed: 12/11/2022] Open
Abstract
Late-onset neurodegenerative diseases remain poorly understood as search continues for the perceived pathogenic protein species. Previously, variants in Superoxide Dismutase 1 (SOD1) causing Amyotrophic Lateral Sclerosis (ALS) were found to destabilize and reduce net charge, suggesting a pathogenic aggregation mechanism. This paper reports analysis of compiled patient data and experimental and computed protein properties for variants of human SOD1, a major risk factor of ALS. Both stability and reduced net charge correlate significantly with disease, with larger significance than previously observed. Using two independent methods and two data sets, a probability < 3% (t-statistical test) is found that ALS-causing mutations share average stability with all possible 2907 SOD1 mutations. Most importantly, un-weighted patient survival times correlate strongly with the misfolded/unfolded protein copy number, expressed as an exponential function of the experimental stabilities (R2 = 0.31, p = 0.002), and this phenotype is further aggravated by charge (R2 = 0.51, p = 1.8 x 10−5). This finding suggests that disease relates to the copy number of misfolded proteins. Exhaustion of motor neurons due to expensive protein turnover of misfolded protein copies is consistent with the data but can further explain e.g. the expression-dependence of SOD1 pathogenicity, the lack of identification of a molecular toxic mode, elevated SOD1 mRNA levels in sporadic ALS, bioenergetic effects and increased resting energy expenditure in ALS patients, genetic risk factors affecting RNA metabolism, and recent findings that a SOD1 mutant becomes toxic when proteasome activity is recovered after washout of a proteasome inhibitor. Proteome exhaustion is also consistent with energy-producing mitochondria accumulating at the neuromuscular junctions where ALS often initiates. If true, this exhaustion mechanism implies a complete change of focus in treatment of ALS towards actively nursing the energy state and protein turnover of the motor neurons.
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Affiliation(s)
- Kasper P. Kepp
- Department of Chemistry, Technical University of Denmark, Kongens Lyngby, Denmark
- * E-mail:
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16
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Ibrahim ATA, Harabawy ASA. Sublethal toxicity of carbofuran on the African catfish Clarias gariepinus: Hormonal, enzymatic and antioxidant responses. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2014; 106:33-39. [PMID: 24836875 DOI: 10.1016/j.ecoenv.2014.04.032] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2014] [Revised: 04/20/2014] [Accepted: 04/21/2014] [Indexed: 06/03/2023]
Abstract
The present study examined the impacts of carbofuran on endocrinology of the catfish, Clarias gariepinus, for the first time and evaluated cortisol (CRT), triiodothyronine (T3), thyroxin (T4), 17β-estradiol (E2) and testosterone (TST) and the oxidative stress markers including SOD, CAT, GSTs, GSH. The toxic effects on the metabolic enzymes, G6PDH and LDH, in addition to lipid peroxidation (LPO) and DNA damage as biomarkers in Nile catfish, to sublethal exposures of carbofuran (0.16 and 0.49mg/L, for 35 days) were studied. Statistically significant differences between selected parameters between control and carbofuran-treated fish were recorded. Carbofuran caused a significant (p<0.05) increase in CRT and T3 levels; the mean levels of T4, TST, E2 exhibited significant decreases (p<0.05) in carbofuran-treated fish. Toxicity of carbofuran on liver, kidney, gills, gonads and muscles after 35 days of exposure was found. Glycogen levels showed a highly significant decrease in liver and gills (p< 0.001), a significant decrease (p< 0.05) in kidney and muscles, and insignificant changes (p>0.05) in gonads of treated fish. The two metabolic enzymes G6PDH and LDH in all tissues exhibited significant decreases (p<0.05) in treated fish. SOD, CAT, GSH and GST levels showed significant decreases (p<0.05) in all tissues of fish after exposure to carbofuran. LPO levels increased significantly (p<0.05) in all tissues except gonads after 5 weeks of exposure to carbofuran. There was a significant (p<0.05) increase in DNA fragmentation percentage in treated fish. Our results provide a clear evidence on the response of C. gariepinus to sublethal doses of carbofuran and allow us to consider catfish as a good bioindicator to reflect the endocrine disrupting impacts of carbofuran, and reflect the potential of this pesticide to cause disturbance in antioxidant defense system as well as metabolism and induction of lipid peroxidation (LPO) and DNA damage in contaminated ecosystems.
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Affiliation(s)
- Ahmed Th A Ibrahim
- Zoology Department, Faculty of Science, New Valley Branch, Assiut University, Assiut, Egypt.
| | - Ahmed S A Harabawy
- Zoology Department, Faculty of Science, Assiut University, Assiut, Egypt; Biology Department, Faculty of Science, North Jeddah, King Abdulaziz University, Jeddah, Saudi Arabia
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17
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Chen JH, Shahnavas S, Singh N, Ong WY, Walczyk T. Stable iron isotope tracing reveals significant brain iron uptake in adult rats. Metallomics 2013; 5:167-73. [PMID: 23340610 DOI: 10.1039/c2mt20226c] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Iron deposits in the brain are a common hallmark of Alzheimer's disease and Parkinson's disease. This has spurred the hypothesis that iron may play a functional role in the pathogenesis of neurodegenerative disorders through free radical damage. Previous short-term studies using radiotracers suggested that brain iron uptake is small as compared to other tissues in adult rodents. This has led to the assumption that brain iron uptake must also be marginal in humans after brain development is complete. In this study we applied a novel approach to determine directly the fraction of iron that was transferred over time from diet to brain and other organs in adult rats. A known amount of a stable iron isotope ((57)Fe) was fed with drinking water to adult rats over 4 months. Uptake of the tracer iron and final iron content in tissues were assessed by Negative Thermal Ionization Mass Spectrometry (NTI-MS). We found that only a very small amount of dietary iron entered the brain (0.000537 ± 0.000076%). This amount, however, is considerable relative to the total brain iron content (9.19 ± 0.71%), which was lower but comparable to percentage uptake in other tissues. Whereas it remains unclear whether excessive dietary iron intake is a risk factor in neurodegenerative diseases or whether high systemic iron correlates with iron deposits in the brain, our study suggests that uptake of dietary iron is much higher than previously thought. This finding challenges current beliefs and points to a possible role of iron nutrition in the pathogenesis of neurodegenerative disorders.
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Affiliation(s)
- Jie-Hua Chen
- Department of Chemistry, National University of Singapore, Singapore
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Srikanth K, Pereira E, Duarte AC, Ahmad I. Glutathione and its dependent enzymes' modulatory responses to toxic metals and metalloids in fish--a review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2013; 20:2133-2149. [PMID: 23334549 DOI: 10.1007/s11356-012-1459-y] [Citation(s) in RCA: 120] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2012] [Accepted: 12/27/2012] [Indexed: 06/01/2023]
Abstract
Toxic metals and metalloid are being rapidly added from multiple pathways to aquatic ecosystem and causing severe threats to inhabiting fauna including fish. Being common in all the type of aquatic ecosystems such as freshwater, marine and brackish water fish are the first to get prone to toxic metals and metalloids. In addition to a number of physiological/biochemical alterations, toxic metals and metalloids cause enhanced generation of varied reactive oxygen species (ROS) ultimately leading to a situation called oxidative stress. However, as an important component of antioxidant defence system in fish, the tripeptide glutathione (GSH) directly or indirectly regulates the scavenging of ROS and their reaction products. Additionally, several other GSH-associated enzymes such as GSH reductase (GR, EC 1.6.4.2), GSH peroxidase (EC 1.11.1.9), and GSH sulfotransferase (glutathione-S-transferase (GST), EC 2.5.1.18) cumulatively protect fish against ROS and their reaction products accrued anomalies under toxic metals and metalloids stress conditions. The current review highlights recent research findings on the modulation of GSH, its redox couple (reduced glutathione/oxidised glutathione), and other GSH-related enzymes (GR, glutathione peroxidase, GST) involved in the detoxification of harmful ROS and their reaction products in toxic metals and metalloids-exposed fish.
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Affiliation(s)
- K Srikanth
- Department of Chemistry, Centre for Environmental and Marine Studies (CESAM), University of Aveiro, 3810-193 Aveiro, Portugal
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Charlet L, Chapron Y, Faller P, Kirsch R, Stone AT, Baveye PC. Neurodegenerative diseases and exposure to the environmental metals Mn, Pb, and Hg. Coord Chem Rev 2012. [DOI: 10.1016/j.ccr.2012.05.012] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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20
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Affiliation(s)
- Kasper P Kepp
- DTU Chemistry, Technical University of Denmark, DK 2800 Kongens Lyngby, Denmark.
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21
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de Oliveira DM, Ferreira Lima RM, El-Bachá RS. Brain rust: recent discoveries on the role of oxidative stress in neurodegenerative diseases. Nutr Neurosci 2012; 15:94-102. [PMID: 22583954 DOI: 10.1179/1476830511y.0000000029] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
Oxidative stress (OS) and damages due to excessive reactive oxygen species (ROS) are common causes of injuries to cells and organisms. The prevalence of neurodegenerative diseases (ND) increases with aging and much of the research involving ROS and OS has emerged from works in this field. This text reviews some recent published articles about the role of OS in ND. Since there are many reviews in this field, the focus was centered in articles published recently. The Scientific Journals Directory supported by the Brazilian Ministry of Education Office for the Coordination of Higher Educational Personnel Improvement (CAPES) was used to search, download, and review articles. The search engine looked for the terms 'oxidative stress AND neurodegenerative diseases AND nutrition' in 10 different scientific collections. Biochemical markers for ND lack sensitivity or specificity for diagnosis or for tracking response to therapy today. OS has an intimate connection with ND, albeit low levels of ROS seem to protect the brain. Deleterious changes in mitochondria, OS, calcium, glucocorticoids, inflammation, trace metals, insulin, cell cycle, protein aggregation, and hundreds to thousands of genes occur in ND. The interaction of genes with their environment, may explain ND. Although OS has received much attention over the years, which increased the number of scientific works on antioxidant interventions, no one knows how to stop or delay ND at present. Interventions in vitro, in vivo, and in humans will continue to contribute for a better understanding of these pathologies.
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22
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Nishida Y. The chemical mechanism of oxidative stress due to the non-transferrin-bound iron (NTBI). ACTA ACUST UNITED AC 2012. [DOI: 10.4236/abb.2012.327131] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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