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Chacón CF, Parachú Marcó MV, Poletta GL, Siroski PA. Lipid metabolism in crocodilians: A field with promising applications in the field of ecotoxicology. ENVIRONMENTAL RESEARCH 2024; 252:119017. [PMID: 38704009 DOI: 10.1016/j.envres.2024.119017] [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: 01/29/2024] [Revised: 04/22/2024] [Accepted: 04/23/2024] [Indexed: 05/06/2024]
Abstract
In the last years, lipid physiology has become an important research target for systems biology applied to the field of ecotoxicology. Lipids are not only essential components of biological membranes, but also participate in extra and intracellular signaling processes and as signal transducers and amplifiers of regulatory cascades. Particularly in sauropsids, lipids are the main source of energy for reproduction, growth, and embryonic development. In nature, organisms are exposed to different stressors, such as parasites, diseases and environmental contaminants, which interact with lipid signaling and metabolic pathways, disrupting lipid homeostasis. The system biology approach applied to ecotoxicological studies is crucial to evaluate metabolic regulation under environmental stress produced by xenobiotics. In this review, we cover information of molecular mechanisms that contribute to lipid metabolism homeostasis in sauropsids, specifically in crocodilian species. We focus on the role of lipid metabolism as a powerful source of energy and its importance during oocyte maturation, which has been increasingly recognized in many species, but information is still scarce in crocodiles. Finally, we highlight priorities for future research on the influence of environmental stressors on lipid metabolism, their potential effect on the reproductive system and thus on the offspring, and their implications on crocodilians conservation.
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Affiliation(s)
- C F Chacón
- Laboratorio de Ecología Molecular Aplicada (LEMA), Instituto de Ciencias Veterinarias del Litoral- Consejo Nacional de Investigaciones Científicas y Técnicas (ICiVet Litoral-CONICET/UNL), Av. Aristóbulo del Valle 8700, 3000, Santa Fe, Argentina; Proyecto Yacaré (MAyCC, Gob. de Santa Fe), Av. Aristóbulo del Valle 8700, 3000, Santa Fe, Argentina.
| | - M V Parachú Marcó
- Laboratorio de Ecología Molecular Aplicada (LEMA), Instituto de Ciencias Veterinarias del Litoral- Consejo Nacional de Investigaciones Científicas y Técnicas (ICiVet Litoral-CONICET/UNL), Av. Aristóbulo del Valle 8700, 3000, Santa Fe, Argentina; Proyecto Yacaré (MAyCC, Gob. de Santa Fe), Av. Aristóbulo del Valle 8700, 3000, Santa Fe, Argentina
| | - G L Poletta
- Laboratorio de Ecología Molecular Aplicada (LEMA), Instituto de Ciencias Veterinarias del Litoral- Consejo Nacional de Investigaciones Científicas y Técnicas (ICiVet Litoral-CONICET/UNL), Av. Aristóbulo del Valle 8700, 3000, Santa Fe, Argentina; Toxicología, Farmacología y Bioquímica Legal, FBCB-UNL, CONICET, Ciudad Universitaria, Paraje El Pozo S/N, 3000, Santa Fe, Argentina
| | - P A Siroski
- Laboratorio de Ecología Molecular Aplicada (LEMA), Instituto de Ciencias Veterinarias del Litoral- Consejo Nacional de Investigaciones Científicas y Técnicas (ICiVet Litoral-CONICET/UNL), Av. Aristóbulo del Valle 8700, 3000, Santa Fe, Argentina; Proyecto Yacaré (MAyCC, Gob. de Santa Fe), Av. Aristóbulo del Valle 8700, 3000, Santa Fe, Argentina
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Araujo JF, Valgas AAN, de Oliveira DR, Verrastro L, Oliveira GT. Pesticides compromise health: a comparison between lizards collected within and outside an agricultural area. ENVIRONMENTAL MONITORING AND ASSESSMENT 2024; 196:334. [PMID: 38430330 DOI: 10.1007/s10661-024-12498-1] [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: 12/21/2023] [Accepted: 02/24/2024] [Indexed: 03/03/2024]
Abstract
Reptiles are the least studied vertebrates regarding the impact of pesticides on their health, despite being good models for ecotoxicological studies given their abundance and easy handling. Salvator merianae is widely distributed in South America and often found in agricultural cultivation areas. Here, we compared the morphological, biochemical, and physiological parameters of S. merianae from an exposed area (EA) to pesticides and a reference area (RA) or control. These parameters were measured in plasma (albumin, alanine transaminase, alkaline phosphatase, gamma-glutamyl transpeptidase, glucose, total proteins, uric acid, triglycerides, VLDL, and corticosterone) and in erythrocytes (TBARS, glutathione S-transferase, superoxide dismutase, and catalase activity). Blood samples were collected from 28 lizards (EA: three juveniles, three adult females, and three adult males; RA: nine juveniles, four females, and five males) in southern Brazil during the reproductive period. We observed a decrease in body mass, the ratio between body mass and total length and snout-vent length in juvenile lizards collected at EA. The levels of TBARS, glutathione S-transferase, triglycerides, VLDL, and uric acid were altered for juveniles in EA. When comparing the two areas, females differed in superoxide dismutase activity and total proteins, while males differed in superoxide dismutase, catalase, and glutathione S-transferase activity. This set of results shows that S. merianae, especially juveniles, suffers a negative impact when inserted in an agricultural area. The analyzed biomarkers proved suitable for monitoring these lizards and the quality of this environment.
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Affiliation(s)
- J F Araujo
- Laboratório de Fisiologia da Conservação, Escola de Ciências da Saúde e da Vida, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil
| | - A A N Valgas
- Laboratório de Herpetologia, Departamento de Zoologia, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Brazil
| | - D R de Oliveira
- Laboratório de Herpetologia, Departamento de Zoologia, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Brazil
| | - L Verrastro
- Laboratório de Herpetologia, Departamento de Zoologia, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Brazil
| | - Guendalina Turcato Oliveira
- Laboratório de Fisiologia da Conservação, Escola de Ciências da Saúde e da Vida, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil.
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Dos Santos RL, Mariz CF, Mascarenhas-Júnior PB, Barboza RSL, Dos Santos EM, de Sousa Correia JM, de Carvalho PSM. Nondestructive Evaluation of Metal Bioaccumulation and Biochemical Biomarkers in Blood of Broad-Snouted Caiman (Caiman latirostris) from Northeastern Brasil. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2024. [PMID: 38411291 DOI: 10.1002/etc.5823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 07/02/2023] [Accepted: 01/04/2024] [Indexed: 02/28/2024]
Abstract
Studies on the bioaccumulation and toxicity of contaminants in Crocodylians are scarce. We evaluated alterations in concentrations of the nondestructive biomarkers butyrylcholinesterase (BChE), glutathione-S-transferase (GST), superoxide dismutase (SOD), and reduced glutathione (GSH), together with bioaccumulation of the metals iron (Fe), copper (Cu), zinc (Zn), manganese (Mn), chronium (Cr), aluminium (Al), and lead (Pb) in Caiman latirostris captured in Tapacurá Reservoir (TR; São Lourenço da Mata, Pernambuco, Brasil), in urbanized areas of Pernambuco State (UA; Brasil) and from the AME Brasil caiman farm (AF; Marechal Deodoro, Alagoas, Brasil); the latter was used as a potential reference with low levels of contamination. For metal analysis, 500 µL of blood was digested in 65% HNO3 and 30% H2 O2 . The samples were analyzed by inductively coupled plasma-optical emission spectrometry. For analysis of biomarkers, an aliquot of blood was centrifuged to obtain plasma in which biochemical assays were performed. Blood concentrations of metals analyzed in animals from AF were lower compared with TR and UA, confirming that animals from the caiman farm could be used as references with low levels of contamination. Iron, Cu, Mn, Al, and Pb exceeded toxic levels for other vertebrates in animals from TR and UA. Butyrylcholinesterase activity showed significant reduction in adults from UA and TR compared with AF. An increase in the activity of GST and GSH, in adults of TR and UA in relation to AF, was verified. Superoxide dismutase activity showed a significant reduction in adults of TR in relation to AF, and the concentrations of Cu and Mn were negatively correlated with SOD activity. Animals from UA and TR showed greater concentrations of the analyzed metals compared with reference animals, and changes in biomarkers were seen, confirming the potential of these nondestructive chemical and biological parameters in blood of C. latirostris for biomonitoring of pollution. Environ Toxicol Chem 2024;00:1-18. © 2024 SETAC.
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Affiliation(s)
- Rayssa Lima Dos Santos
- Programa de Pós-Graduação em Biologia Animal, Universidade Federal de Pernambuco, Recife, Brasil
- Laboratório Interdisciplinar de Anfibios e Répteis, Universidade Federal de Pernambuco, Recife, Brasil
- Laboratório de Ecotoxicologia Aquática, Universidade Federal de Pernambuco, Recife, Brasil
| | - Célio Freire Mariz
- Programa de Pós-Graduação em Biologia Animal, Universidade Federal de Pernambuco, Recife, Brasil
- Laboratório de Ecotoxicologia Aquática, Universidade Federal de Pernambuco, Recife, Brasil
| | - Paulo Braga Mascarenhas-Júnior
- Programa de Pós-Graduação em Biologia Animal, Universidade Federal de Pernambuco, Recife, Brasil
- Laboratório Interdisciplinar de Anfibios e Répteis, Universidade Federal de Pernambuco, Recife, Brasil
| | - Rafael Sá Leitão Barboza
- Laboratório Interdisciplinar de Anfibios e Répteis, Universidade Federal de Pernambuco, Recife, Brasil
- Programa de Pós-Graduação em Biodiversidade, Universidade Federal Rural de Pernambuco, Recife, Brasil
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Gültekin VK, Atamanalp M, Ucar A, Alak G, Parlak V. Testing the detoxification power of black cumin oil ( Nigella sativa) over cypermethrin insecticide effects in rainbow trout ( Oncorhynchus mykiss) at multiple scales. Drug Chem Toxicol 2024:1-14. [PMID: 38326995 DOI: 10.1080/01480545.2024.2311279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 01/23/2024] [Indexed: 02/09/2024]
Abstract
This study investigated the curative effect of black cumin oil (Nigella sativa, NS), which is a phytotherapeutic agent against to cypermethrin (CYP), which is known to have adverse effects on rainbow trout (Oncorhynchus mykiss)'s behavioral changes, oxidative stress-mediated neurotoxicity, hematotoxicity and hepatotoxicity parameters.At the end of the trial period; (i) evaluation of critical swimming speed (Ucrit) (ii) hematology indices [white blood cell (WBC), red blood cell (RBC), hemoglobin (Hgb), hematocrit (Hct), mean cell volume (MCV), mean cell hemoglobin) (MCH), mean cell hemoglobin concentration (MCHC)] (iii) Elucidation of the mechanism of functional damage in brain tissue of O. mykiss by neurological parameter [acetylcholinesterase (AChE)] (iv) Evaluation of oxidative damage in oxidative stress-mediated neurotoxicity and hepatotoxicity in liver, gill and brain tissue of O. mykiss with antioxidant enzymes [(Superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), Glutathione (GSH)] and [(detection by means of malondialdehyde (MDA)] (v) Obtaining applicable data in the toxicological field using a multi-biomarker approach to investigate the modulation of NS administration via target markers in the physiological pathway of O. mykiss were aimed.As a result of CYP application, it was determined that the Ucrit value of O. mykiss decreased significantly. It was determined that the changes in the values of RBC, Hgb and Hct, which are among the hematology parameters examined in the blood tissue, were statistically significant (p < 0.05). It was determined that WBC value was inhibited by CYP application and NS tried to make a positive contribution to WBC. It was determined that the AChE activity of O. mykiss in the brain tissue had a statistically significant inhibition in the CYP-treated group (p < 0.05). SOD, CAT, GPx, enzyme activities were found to be inhibited by CYP application and were statistically significant (p < 0.05). Acute toxicity of CYP was determined by antioxidant enzyme biomarkers in gill tissue. In the results obtained; While inhibitions were determined in SOD, CAT, GPx activities compared to the control group, an induction occurred in MDA value.NS administration was noted to be an important modulator of the SOD-CAT system against CYP exposure at both concentrations. Thus, it can be said that it indirectly functions as an effective antioxidant through the NS receptor protein and structurally stimulates the synthesis and activity of antioxidative enzymes under oxidative stress.
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Affiliation(s)
| | | | - Arzu Ucar
- Department of Aquaculture, Ataturk University, Erzurum, Turkey
| | - Gonca Alak
- Department of Sea Food Processing, Ataturk University, Erzurum, Turkey
| | - Veysel Parlak
- Department of Basic Sciences, Ataturk University, Erzurum, Turkey
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Latif F, Iqbal R, Ambreen F, Kousar S, Ahmed T, Aziz S. Studies on bioaccumulation patterns, biochemical and genotoxic effects of copper on freshwater fish, Catla catla: an in vivo analysis. BRAZ J BIOL 2024; 84:e256905. [DOI: 10.1590/1519-6984.256905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 11/10/2021] [Indexed: 11/22/2022] Open
Abstract
Abstract During present study, the copper (Cu) mediated oxidative stress was measured that induced DNA damage by concentrating in the tissues of fish, Catla catla (14.45±1.24g; 84.68±1.45mm) (Hamilton,1822). Fish fingerlings were retained in 5 groups for 14, 28, 42, 56, 70 and 84 days of the exposure period. They were treated with 2/3, 1/3, 1/4 and 1/5 (T1-T4) of 96h lethal concentration of copper. Controls were run along with all the treatments for the same durations. A significant (p < 0.05) dose and time dependent concentration of Cu was observed in the gills, liver, kidney, muscles, and brain of C. catla. Among organs, the liver showed a significantly higher concentration of Cu followed by gills, kidney, brain, and muscles. Copper accumulation in these organs caused a significant variation in the activities of enzymes viz. superoxide dismutase (SOD), catalase (CAT) and peroxidase (POD). The SOD activity varied significantly in response to the exposure time of Cu as 56 > 70 > 42 > 84 > 28 > 14 days while CAT activity exhibited an inverse relationship with the increase in Cu concentration. POD activity showed a significant rise with an increase in Cu exposure duration. Comet assay exhibited significant DNA damage in the peripheral erythrocytes of Cu exposed C. catla. Among four exposure concentrations, 2/3rd of LC50 (T1) caused significantly higher damage to the nuclei compared to control. Increased POD and SOD activity, as well as a decrease in CAT activity in response to Cu, demonstrates the involvement of a protective mechanism against reactive oxygen species (ROS), whereas increased ROS resulted in higher DNA damage. These above-mentioned molecular markers can be efficiently used for the biomonitoring of aquatic environments and conservation of edible fish fauna.
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Affiliation(s)
- F. Latif
- Bahauddin Zakariya University, Pakistan
| | - R. Iqbal
- Bahauddin Zakariya University, Pakistan
| | - F. Ambreen
- Government College Women University, Pakistan
| | - S. Kousar
- Government College Women University, Pakistan
| | - T. Ahmed
- Khwaja Fareed University of Engineering and Information Technology, Pakistan
| | - S. Aziz
- University of Agriculture, Pakistan
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Mestre AP, Odetti LM, Marcó MVP, Poletta GL, Amavet PS, Siroski PA. Immuno-endocrine alterations and oxidative stress induced by commercial formulations of pesticides in the tegu lizard (Salvator merianae). ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2023; 103:104277. [PMID: 37722497 DOI: 10.1016/j.etap.2023.104277] [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: 05/18/2023] [Revised: 07/14/2023] [Accepted: 09/14/2023] [Indexed: 09/20/2023]
Abstract
Recent research has shown the risk of environmental contamination by pesticides in Argentina. Salvator merianae is considered as "sentinel species" for monitoring their effects. We intended to investigate growth, immunological and endocrine functions, and oxidative stress in S. merianae exposed to two commercial brands of the herbicide glyphosate: Roundup and Panzer Gold, as well as, to two insecticides: chlorpyrifos, and cypermethrin. Our results showed a higher increase in growth in animals exposed to Roundup and chlorpyrifos and a lower increase in those exposed to Panzer Gold. Higher total leukocyte and lymphocyte count values were observed in lizards exposed to Panzer Gold. The heterophils/lymphocytes ratio decreased in all treated animals. Regarding lobularity index, natural antibodies titers, and complement system activity values, lizards exposed to cypermethrin had higher values. Low corticosterone levels were observed in animals exposed to Roundup. Our results reveal different toxic effects of pesticides contributing to the knowledge of the pesticides' potential deleterious impact in the habitat of S. merianae.
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Affiliation(s)
- Ana Paula Mestre
- Laboratorio de Genética, Departamento de Ciencias Naturales, Facultad de Humanidades y Ciencias, Universidad Nacional del Litoral (FHUC-UNL), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Santa Fe, Argentina; Laboratorio de Zoología Aplicada: Anexo Vertebrados, Facultad de Humanidades y Ciencias, Universidad Nacional del Litoral (FHUC-UNL/MAyCC), Santa Fe, Argentina.
| | - Lucía Magdalena Odetti
- Cátedra de Toxicología, Farmacología y Bioquímica Legal (FBCB-UNL), CONICET, Santa Fe, Argentina
| | - María Virginia Parachú Marcó
- Laboratorio de Zoología Aplicada: Anexo Vertebrados, Facultad de Humanidades y Ciencias, Universidad Nacional del Litoral (FHUC-UNL/MAyCC), Santa Fe, Argentina; Laboratorio de Ecología Molecular Aplicada, Instituto de Ciencias Veterinarias del Litoral (ICiVet Litoral) UNL-CONICET, Esperanza, Argentina
| | - Gisela Laura Poletta
- Laboratorio de Zoología Aplicada: Anexo Vertebrados, Facultad de Humanidades y Ciencias, Universidad Nacional del Litoral (FHUC-UNL/MAyCC), Santa Fe, Argentina; Cátedra de Toxicología, Farmacología y Bioquímica Legal (FBCB-UNL), CONICET, Santa Fe, Argentina
| | - Patricia Susana Amavet
- Laboratorio de Genética, Departamento de Ciencias Naturales, Facultad de Humanidades y Ciencias, Universidad Nacional del Litoral (FHUC-UNL), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Santa Fe, Argentina; Laboratorio de Zoología Aplicada: Anexo Vertebrados, Facultad de Humanidades y Ciencias, Universidad Nacional del Litoral (FHUC-UNL/MAyCC), Santa Fe, Argentina
| | - Pablo Ariel Siroski
- Laboratorio de Zoología Aplicada: Anexo Vertebrados, Facultad de Humanidades y Ciencias, Universidad Nacional del Litoral (FHUC-UNL/MAyCC), Santa Fe, Argentina; Laboratorio de Ecología Molecular Aplicada, Instituto de Ciencias Veterinarias del Litoral (ICiVet Litoral) UNL-CONICET, Esperanza, Argentina
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Abdel-Azeem HH, Osman GY, Mohamed AH. Potential toxic effects of titanium oxide (TiO 2) nanoparticles on the biological, biochemical, and histological aspects of the land snail Helix aspersa. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-27666-y. [PMID: 37266786 DOI: 10.1007/s11356-023-27666-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 05/11/2023] [Indexed: 06/03/2023]
Abstract
Nanotechnology has come a long way in our lives. However, it maintains some negative effects on the environment. This study aims to use the land snail Helix aspersa as a bioindicator. Titanium dioxide nanoparticles (TiO2NPs) had been used at 70 and 140 µg/L for two weeks by the spraying method. The oxidative biomarkers, condition index (CI), DNA damage, hemocyte count, and phagocytic activity were estimated. The toxicity of TiO2NPs was determined (LC50 = 544 µg/L). The exposure to TiO2NPs caused a significant reduction of the activities of superoxide dismutase (SOD) and catalase (CAT) in the digestive gland of Helix aspersa (the activity of CAT was 3.4 ± 0.1 (P = 0.001), SOD was 11 ± 1 (P = 0.0002) at concentration 140 µg/L after two weeks). The activity of glutathione peroxidase (GPX) was (1.13 ± 0.01 µ/mg protein at 140 µg/L compared with controls (5.47 ± 0.01 µ/mg protein). The treatment caused DNA damage in the hemocytes (tail DNA % = 8.66 ± 0.02 and tail moment = 52.99 ± 0 at140 µg/L (P = 0.002)). In the digestive gland, both tail DNA % and tail moment increased (tail moment = 78.38 ± 0.08 compared with control = 2.29 ± 0.09 (P = 0.0001)). The total count of hemocytes significantly decreased after two weeks (the average number was 71 ± 1.5 compared with controls 79 ± 1.1 at 140 µg/L). Furthermore, TiO2NPs caused histological alterations in the digestive gland of Helix aspersa. It can be concluded that the Helix aspersa can be used as environmental pollution bioindicator. A comprehensive evaluation of toxic effects induced by TiO2NPs in vivo assays must be investigated.
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Affiliation(s)
- Hoda H Abdel-Azeem
- Department of Zoology, Faculty of Science, Menoufia University, Shebin El-Kom, Egypt.
| | - Gamalat Y Osman
- Department of Zoology, Faculty of Science, Menoufia University, Shebin El-Kom, Egypt
| | - Azza H Mohamed
- Department of Zoology, Faculty of Science, Menoufia University, Shebin El-Kom, Egypt
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Peluso J, Pérez Coll CS, Rojas DE, Cristos D, Aronzon CM. Ecotoxicological assessment of complex environmental matrices from the lower Paraná River basin. CHEMOSPHERE 2022; 305:135385. [PMID: 35753422 DOI: 10.1016/j.chemosphere.2022.135385] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 06/13/2022] [Accepted: 06/14/2022] [Indexed: 06/15/2023]
Abstract
Sediments of aquatic ecosystems constitute the fate of most atmospheric and terrestrial pollutants. Since aquatic organisms, such as amphibians, interact with sediments, the presence of pollutants may affect their survival, growth and reproduction. So, the aim of this study was to evaluate, the sediment and water quality of five sites from the lower basin of the Paraná River (Buenos Aires, Argentina) with different anthropic impacts: Morejón stream (S1), de la Cruz stream upstream (S2) and downstream (S3), Arrecifes river (S4), tributary stream of Arrecifes river (S5). Physicochemical parameters were measured in situ (water) and in laboratory (water and sediment samples). Also, a screening of metals and pesticides was performed. Chronic (504 h) lethal toxicity bioassays were performed exposing Rhinella arenarum larvae to sediment and water samples. Oxidative stress (catalase, superoxide dismutase, glutathione S transferase, reduced glutathione and lipid peroxidation) and genotoxicity (micronuclei test) biomarkers were analyzed at acute (96 h) exposure. According to the calculated water quality index, S1 and S3 showed excellent quality, S2 good quality and, S4 and S5 poor quality. Dissolved oxygen was low in all sites (2.26-5.63 mg/L) and S5 had the highest organic matter content. Copper levels exceeded the limit for the protection of aquatic life in S2 and S4; arsenic levels exceeded its limit in S4; and selenium levels exceeded its limit in S4 and S5. Pesticides were mainly detected in water samples. Sediment from S5 showed higher sulfide and organic matter concentrations. At 504 h, no significant mortality was observed in the control group while S5 caused the greatest mortality (80%), followed by S2 (66.67%), S1 (63.33%), S3 (46.67%) and S4 (43.4%). All samples caused oxidative stress and lipid peroxidation, and samples from S4 also caused genotoxicity. The analysis of sediment and water samples was a suitable approach to assess the effects of water bodies on a native amphibian species.
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Affiliation(s)
- Julieta Peluso
- Instituto de Investigación e Ingeniería Ambiental, IIIA, CONICET-UNSAM, 3iA, Campus Miguelete, 25 de Mayo y Francia, C.P. 1650, San Martín, Provincia de Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
| | - Cristina S Pérez Coll
- Instituto de Investigación e Ingeniería Ambiental, IIIA, CONICET-UNSAM, 3iA, Campus Miguelete, 25 de Mayo y Francia, C.P. 1650, San Martín, Provincia de Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
| | - Dante E Rojas
- Instituto Nacional de Tecnología Agropecuaria (INTA), Instituto Tecnología de Los Alimentos, Argentina
| | - Diego Cristos
- Instituto Nacional de Tecnología Agropecuaria (INTA), Instituto Tecnología de Los Alimentos, Argentina
| | - Carolina M Aronzon
- Instituto de Investigación e Ingeniería Ambiental, IIIA, CONICET-UNSAM, 3iA, Campus Miguelete, 25 de Mayo y Francia, C.P. 1650, San Martín, Provincia de Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina.
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Finger JW, Kelley M, Hamilton M, Zhang Y, Elsey R, Mendonca M, Kavazis AN. Changes in antioxidant enzyme levels following capture in juvenile American Alligators (Alligator mississippiensis) are tissue dependent. CAN J ZOOL 2022. [DOI: 10.1139/cjz-2021-0231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Many parameters used to investigate stress in vertebrates are temporally sensitive. The act of capture and sampling can influence them, hindering their functionality for evaluating the effects of stressors. Consequently, the investigation and subsequent incorporation of less time sensitive parameters are necessary to better evaluate stressors affecting vertebrates. In this study, we investigated how capture stress and handling associated with sampling influences antioxidant status in American Alligators (Alligator mississippiensis, Daudin, 1802; hereafter Alligator), long-lived, top-trophic carnivores found in the southeastern United States, by measuring levels of two antioxidant enzymes in destructive (brain and pancreas) and nondestructive (tail scutes) tissues: superoxide-dismutase-1 (SOD1) and glutathione peroxidase-1 (GPX1). Capture stress had no effect on pancreatic SOD1 and no effect on brain and pancreatic GPX1 (all p > 0.05). However, brain SOD1, scute SOD1, and scute GPX1 were all impacted by capture stress. These disparate results illustrate that the influence of capture stress on antioxidant enzymes in Alligators is tissue and marker dependent, necessitating further investigation. Our results provide a firm foundation to further investigate oxidative status in crocodilians.
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Affiliation(s)
- John W. Finger
- Auburn University, 1383, Department of Biological Sciences, Auburn, United States, 36849-5412
| | - Meghan Kelley
- Auburn University, 1383, Auburn, Alabama, United States
| | - Matthew Hamilton
- Purdue University, 311308, West Lafayette, Indiana, United States
| | - Yufeng Zhang
- The University of Memphis, 5415, Memphis, Tennessee, United States
| | - Ruth Elsey
- Departement of wildlife and fisheries, Louisiana, USA, 5476 Grand Chenier Highway, Grand Chenier, United States, 70643
| | - Mary Mendonca
- Auburn University, 1383, Auburn, Alabama, United States
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Verma S, Batoye S, Jindal R. Protective efficacy of naringenin against cadmium-induced redox imbalance in Labeo rohita: an integrated biomarker approach. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:25591-25604. [PMID: 34846652 DOI: 10.1007/s11356-021-17703-z] [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: 06/28/2021] [Accepted: 11/18/2021] [Indexed: 06/13/2023]
Abstract
The protective efficacy of dietary naringenin (NG) has been investigated against the toxicity caused by cadmium chloride (CdCl2) using biomarkers of oxidative stress in the liver, gills and kidney of Labeo rohita. The fish were exposed to environmentally relevant concentrations of CdCl2 (0.37 and 0.62 mg/L) and simultaneously orally administered with NG (50 mg/kg bw/day) for 60 days. Tissue (gills, liver and kidney) samples were collected on days 15, 30 and 60 of the experiment and analysed for endogenous antioxidants and oxidative stress biomarkers. CdCl2 exposure for 15 and 30 days induced the development of adaptive mechanism as demonstrated by the enhanced activities of superoxide dismutase, catalase, glutathione peroxidase and glutathione-S-transferase in all three tissues. However, on the 60th day, CdCl2-induced oxidative damage was stipulated by a decline in the enzyme activities and reduced glutathione (GSH) content significantly (p < 0.05) below control levels along with enhanced levels of lipid peroxidation. Oral administration of NG in toxicant exposed fish significantly restored the altered levels of antioxidants, oxidative enzymes and lipid peroxidation. Besides, integrated biomarker response (IBR) analysis was applied by combining all the biomarkers to indicate the overall stress response index. IBR analysis confirmed the altered levels of biomarkers, the oxidative stress induced by CdCl2 exposure and the ameliorative potential of NG. The present study suggested that NG might have protective role against Cd-induced oxidative insult which might be ascribed to the ability of NG to chelate metals and scavenge free radicals.
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Affiliation(s)
- Sakshi Verma
- Aquatic Biology Laboratory, Department of Zoology, Panjab University, Chandigarh, 160014, India
- Department of Zoology, Hans Raj Mahila Maha Vidyalaya, Jalandhar, 144008, Punjab, India
| | - Smriti Batoye
- Department of Zoology, Maharaja Agrasen University, Baddi, 174103, Himachal Pradesh, India
| | - Rajinder Jindal
- Aquatic Biology Laboratory, Department of Zoology, Panjab University, Chandigarh, 160014, India.
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11
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Morão IFC, Lemos MFL, Félix R, Vieira S, Barata C, Novais SC. Stress response markers in the blood of São Tomé green sea turtles (Chelonia mydas) and their relation with accumulated metal levels. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 293:118490. [PMID: 34780755 DOI: 10.1016/j.envpol.2021.118490] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 11/10/2021] [Accepted: 11/11/2021] [Indexed: 06/13/2023]
Abstract
Metals are persistent worldwide being harmful for diverse organisms and having complex and combined effects with other contaminants in the environment. Sea turtles accumulate these contaminants being considered good bioindicator species for marine pollution. However, very little is known on how this is affecting these charismatic animals. São Tomé and Príncipe archipelago harbours important green sea turtle (Chelonia mydas) nesting and feeding grounds. The main goal of this study was to determine metal and metalloid accumulation in the blood of females C. mydas nesting in São Tomé Island, and evaluate the possible impacts of this contamination by addressing molecular stress responses. Gene expression analysis was performed in blood targeting genes involved in detoxification/sequestration and metal transport (mt, mtf and fer), and in antioxidant and oxidative stress responses (cat, sod, gr, tdx, txrd, selp and gclc). Micronuclei analysis in blood was also addressed as a biomarker of genotoxicity. Present results showed significant correlations between different gene expressions with the metals evaluated. The best GLM models and significant relationships were found for mt expression, for which 78% of the variability was attributed to metal levels (Al, Cu, Fe, Hg, Pb and Zn), followed by micronuclei count (65% - Cr, Cu, Fe, Hg, Mn and Zn), tdx expression (52% - Cd, Fe, Mn, Pb and Se), and cat expression (52% - As, Fe, Se and Cd x Hg). Overall, this study demonstrates that these green sea turtles are trying to adapt to the oxidative stress and damage produced by metals through the increased expression of antioxidants and other protectors, which raises concerns about the impacts on these endangered organisms' fitness. Furthermore, promising biomarker candidates associated to metal stress were identified in this species that may be used in future biomonitoring studies using C. mydas' blood, allowing for a temporal follow-up of the organisms.
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Affiliation(s)
- Inês F C Morão
- MARE - Marine and Environmental Sciences Centre, ESTM, Politécnico de Leiria, Portugal
| | - Marco F L Lemos
- MARE - Marine and Environmental Sciences Centre, ESTM, Politécnico de Leiria, Portugal
| | - Rafael Félix
- MARE - Marine and Environmental Sciences Centre, ESTM, Politécnico de Leiria, Portugal
| | - Sara Vieira
- Associação Programa Tatô, Avenida Marginal 12 de Julho, Cidade de São Tomé, São Tomé e Príncipe, Portugal
| | - Carlos Barata
- Environmental Chemistry Department, IDAEA-CSIC, Jordi Girona 18-26, 08034, Barcelona, Spain
| | - Sara C Novais
- MARE - Marine and Environmental Sciences Centre, ESTM, Politécnico de Leiria, Portugal.
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12
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López González E, Odetti L, Latorre M, Ávila O, Contini L, Siroski P, Poletta G. A comprehensive approach using multiple biomarkers to detect damage induced by pesticides in broad-snouted caiman ( Caiman latirostris) under ex-situ conditions. Heliyon 2022; 8:e08667. [PMID: 35028453 PMCID: PMC8741443 DOI: 10.1016/j.heliyon.2021.e08667] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 11/06/2021] [Accepted: 12/21/2021] [Indexed: 01/17/2023] Open
Abstract
Caiman latirostris is one of the two species of the order Crocodylia that inhabit Argentina and is considered a species of vital ecological and economic importance in the north-east of Argentina. In this region, pesticides are the most common contaminants in natural environments and wild caiman populations are subject to this contamination constantly. The aim of this study was to evaluate the effects the main pesticides used in the region: glyphosate (GLY), cypermethrin (CYP) and chlorpyrifos (CPF) -based formulations, as well as the mixture of them, on C. latirostris juveniles under semi-controlled condition of exposure (ex-situ) during 75 days. One hundred yearling caimans (10-month-old) were equally distributed into five experimental groups (20 animals per group): a negative control (NC -tap water), GLY 2% (Roundup® Full II formulation -RU), CYP 0.12% (Atanor® formulation), CPF 0.8% (Lorsban® formulation), and a mixture of the three pesticides (Mx3: GLY 2% + CYP 0.12% + CPF 0.8%). We applied early warning biomarkers to detect damage induced by these chemicals in peripheral blood: activity of the antioxidant enzymes catalase (CAT) and superoxide dismutase (SOD), analysis of lipid peroxidation (LPO) by the thiobarbituric acid reactive substances (TBARS), DNA damage and specific base oxidation through the standard and modified comet assay (CA), chromosome damage by micronucleus (MN) test and other nuclear abnormalities (NAs), hematological and growth parameters. Results showed a statistically significant increase in MN and NAs frequency, DNA damage, with an important contribution of base oxidation for all exposed groups compared to the NC. Total white blood cells count (TWBCC), and growth parameters showed effects mainly at the Mx3. The principal component analysis (PCA) demonstrated more sensitivity for biomarkers associated to genetic damage, including base oxidation to DNA than LPO, antioxidant enzyme modulation, immunotoxicity or growth parameters, to detect pesticides effects, applied under conditions similar to that found in natural environments.
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Affiliation(s)
- E.C. López González
- Proyecto Yacaré, Laboratorio de Zoología Aplicada: Anexo Vertebrados (FHUC-UNL/Gob. Sta. Fe/MAyCC), Av. Aristóbulo del Valle 8700 (3000) Santa Fe, Argentina
- Laboratorio de Ecología Molecular Aplicada (LEMA-Instituto de Ciencias Veterinarias del Litoral - Consejo Nacional de Investigaciones Científicas y Técnicas: ICiVet Litoral - CONICET/UNL), Av. Aristóbulo del Valle 8700 (3000) Santa Fe, Argentina
| | - L.M. Odetti
- Cátedra de Toxicología Farmacología y Bioquímica Legal, FBCB-UNL, CONICET, Ciudad Universitaria, Paraje El Pozo S/N (3000) Santa Fe, Argentina
| | - M.A. Latorre
- Proyecto Yacaré, Laboratorio de Zoología Aplicada: Anexo Vertebrados (FHUC-UNL/Gob. Sta. Fe/MAyCC), Av. Aristóbulo del Valle 8700 (3000) Santa Fe, Argentina
| | - O.B. Ávila
- Departamento de Matemática, FBCB-UNL, Ciudad Universitaria, Paraje El Pozo S/N (3000) Santa Fe, Argentina
| | - L.E. Contini
- Departamento de Matemática, FBCB-UNL, Ciudad Universitaria, Paraje El Pozo S/N (3000) Santa Fe, Argentina
| | - P.A. Siroski
- Proyecto Yacaré, Laboratorio de Zoología Aplicada: Anexo Vertebrados (FHUC-UNL/Gob. Sta. Fe/MAyCC), Av. Aristóbulo del Valle 8700 (3000) Santa Fe, Argentina
- Laboratorio de Ecología Molecular Aplicada (LEMA-Instituto de Ciencias Veterinarias del Litoral - Consejo Nacional de Investigaciones Científicas y Técnicas: ICiVet Litoral - CONICET/UNL), Av. Aristóbulo del Valle 8700 (3000) Santa Fe, Argentina
| | - G.L. Poletta
- Proyecto Yacaré, Laboratorio de Zoología Aplicada: Anexo Vertebrados (FHUC-UNL/Gob. Sta. Fe/MAyCC), Av. Aristóbulo del Valle 8700 (3000) Santa Fe, Argentina
- Cátedra de Toxicología Farmacología y Bioquímica Legal, FBCB-UNL, CONICET, Ciudad Universitaria, Paraje El Pozo S/N (3000) Santa Fe, Argentina
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Finger JW, Kelley MD, Zhang Y, Hamilton MT, Elsey RM, Mendonca MT, Kavazis AN. Antioxidant Enzymes in Destructible and Non-Destructible Tissues in American Alligators (Alligator mississippiensis). SOUTH AMERICAN JOURNAL OF HERPETOLOGY 2021. [DOI: 10.2994/sajh-d-19-00118.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- John W. Finger
- Department of Biological Sciences, Auburn University, Auburn, AL 36849, USA
| | - Meghan D. Kelley
- Department of Biological Sciences, Auburn University, Auburn, AL 36849, USA
| | - Yufeng Zhang
- School of Health Studies, University of Memphis, Memphis, TN 38152, USA
| | - Matthew T. Hamilton
- Department of Forestry and Natural Resources, Purdue University, West Lafayette, IN 47907, USA
| | - Ruth M. Elsey
- Louisiana Department of Wildlife and Fisheries, Rockefeller Wildlife Refuge, Grand Chenier, LA 70643, USA
| | - Mary T. Mendonca
- Department of Biological Sciences, Auburn University, Auburn, AL 36849, USA
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Odetti LM, Paravani EV, Simoniello MF, Poletta GL. Identification and evaluation of antioxidant and reference genes for quantitative real-time PCR in blood of Caiman latirostris. Heliyon 2021; 7:e06253. [PMID: 33659756 PMCID: PMC7895747 DOI: 10.1016/j.heliyon.2021.e06253] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 12/11/2020] [Accepted: 02/07/2021] [Indexed: 01/11/2023] Open
Abstract
The quantitative real-time polymerase chain reaction (qPCR) has been one of the most promising approaches to perform rapid and accurate quantification of DNA in various biological systems. The aim of this study was to standardized the qPCR technique for the analysis of important genes involved in the main routes of antioxidant defense against reactive oxygen species (catalase: cat and superoxide dismutase: sod) and evaluate the stability of different reference genes in blood of Caiman latirostris hatchlings. The stability of the reference genes, β-actin, glyceraldehyde 3-phosphate dehydrogenase (gapdh) and ribosomal protein L8 (rpl8) was determined using the comparative ΔCt, NormFinder, geNorm, BestKeeper and RefFinder. Then, cat and sod genes were normalized with each reference gene and their mRNA abundances were determined through the qPCR. Stability of genes was ranked through the different methods in the following order: β-actin, rpl8 and gapdh , under normal physiological conditions. The results reveal that cat and sod genes present a similar relative mRNA abundance with β-actin and rpl8. This is the first report of the analysis of antioxidant mRNA as potential biomarkers of oxidative stress in blood for all crocodilians species. Besides, we determined the stability of different reference genes that can be used for normalization of mRNA abundance patterns in blood of C. latirostris, without the need to sacrifice the animals.
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Affiliation(s)
- Lucia M. Odetti
- Cátedra de Toxicología, Farmacología y Bioquímica Legal, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Ciudad Universitaria, Paraje El Pozo S/N 3000, Santa Fe, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas Godoy Cruz 2290 C1425FQB Ciudad Autónoma de Buenos Aires, Argentina
| | - Enrique V. Paravani
- Lab. de Química Ambiental, Cátedra de Química General e Inorgánica. Facultad de Ingeniería–UNER, Oro Verde, Entre Ríos, Argentina
| | - María F. Simoniello
- Cátedra de Toxicología, Farmacología y Bioquímica Legal, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Ciudad Universitaria, Paraje El Pozo S/N 3000, Santa Fe, Argentina
| | - Gisela L. Poletta
- Cátedra de Toxicología, Farmacología y Bioquímica Legal, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Ciudad Universitaria, Paraje El Pozo S/N 3000, Santa Fe, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas Godoy Cruz 2290 C1425FQB Ciudad Autónoma de Buenos Aires, Argentina
- Proyecto Yacaré-Lab. de Zoología Aplicada: Anexo Vertebrados, Facultad de Humanidades y Ciencias-Universidad Nacional del Litoral/Ministerio de Medio Ambiente, Av. Aristóbulo del Valle 8700 3000, Santa Fe, Argentina
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15
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Molecular analysis and bioinformatic characterization of cooper, zinc-superoxide dismutase (Cu/Zn-sod) gene of Caiman latirostris. Mol Biol Rep 2020; 47:8849-8857. [DOI: 10.1007/s11033-020-05937-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 10/20/2020] [Indexed: 01/06/2023]
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16
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Gupta P, Verma SK. Evaluation of genotoxicity induced by herbicide pendimethalin in fresh water fishClarias batrachus(linn.) and possible role of oxidative stress in induced DNA damage. Drug Chem Toxicol 2020; 45:750-759. [DOI: 10.1080/01480545.2020.1774603] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Priyanka Gupta
- Department of Zoology, Guru Ghasidas Vishwavidyalaya (Central University), Bilaspur, India
| | - Sushant Kumar Verma
- Department of Zoology, Guru Ghasidas Vishwavidyalaya (Central University), Bilaspur, India
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17
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Odetti LM, López González EC, Romito ML, Simoniello MF, Poletta GL. Genotoxicity and oxidative stress in Caiman latirostris hatchlings exposed to pesticide formulations and their mixtures during incubation period. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 193:110312. [PMID: 32109584 DOI: 10.1016/j.ecoenv.2020.110312] [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: 10/31/2019] [Revised: 02/04/2020] [Accepted: 02/06/2020] [Indexed: 06/10/2023]
Abstract
Agricultural expansion and the consequent use of pesticides lead to the loss and fragmentation of natural habitats of several wild species. Then, many species are inevitably exposed to a wide amount of pesticide formulations. Glyphosate (GLY)-based formulations are the most used herbicide, whereas two of the most employed insecticides are chlorpyrifos (CPF) and cypermethrin (CYP). The aim of this study was to evaluate genotoxicity, oxidative damage, and the modulation of antioxidants defenses in peripheral blood of Caiman latirostris after embryonic exposure to pesticide formulations and their mixtures. Pesticides concentrations employed were equivalent to those recommended in agricultural practices for application in soybean crops and a half of them: GLY: 2% and 1%; CYP: 0.12% and 0.06%; CPF: 0.8% and 0.4%. Two similar experiments (E1 and E2) were carried out in consecutive years, where C. latirostris eggs were exposed to pesticide formulations separately and in different mixtures through application on the incubation material. After hatching, blood samples were taken and genotoxicity and oxidative stress was evaluated through the micronucleus (MN) test, the modified comet assay, the lipid peroxidation (LPO) levels and the activities of catalase (CAT) and superoxide dismutase (SOD) antioxidant enzymes. The results indicated the presence of DNA damage, oxidation of purines and pyrimidines, and increased frequency of micronucleus (FMN) in the case of GLY, CYP, and CPF formulations exposure, as well as in all the mixtures tested, with respect to the control groups. Specifically, the results observed for the mixtures would indicate independent action or antagonism of the components for DNA damage and base oxidation (purines and pyrimidines) and a possible potentiation interaction for the FMN in two binary mixtures. However, there were not differences regarding lipid peroxidation, the activity of antioxidant enzymes and growth parameters. This study proved that the use of pesticide formulations at concentrations used in the field generate deleterious genetic effects on this species, then, exposure to them could threaten its survival and health status.
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Affiliation(s)
- L M Odetti
- Cát. Toxicol., Farmacol. y Bioq. Legal, FBCB-UNL. Ciudad Universitaria, Paraje El Pozo S/N (3000), Santa Fe, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290 (C1425FQB), CABA, Argentina
| | - E C López González
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290 (C1425FQB), CABA, Argentina; Lab. de Ecología Molecular Aplicada (LEMA) - Instituto de Ciencias Veterinarias del Litoral (ICiVet-Litoral-UNL/CONICET), R.P. Kreder 2805 (3080), Esperanza, Santa Fe, Argentina; Proyecto Yacaré - Lab. Zoología Aplicada: Anexo Vertebrados (FHUC-UNL/MMA), Av. Aristóbulo del Valle 8700 (3000), Santa Fe, Argentina
| | - M L Romito
- Proyecto Yacaré - Lab. Zoología Aplicada: Anexo Vertebrados (FHUC-UNL/MMA), Av. Aristóbulo del Valle 8700 (3000), Santa Fe, Argentina
| | - M F Simoniello
- Cát. Toxicol., Farmacol. y Bioq. Legal, FBCB-UNL. Ciudad Universitaria, Paraje El Pozo S/N (3000), Santa Fe, Argentina
| | - G L Poletta
- Cát. Toxicol., Farmacol. y Bioq. Legal, FBCB-UNL. Ciudad Universitaria, Paraje El Pozo S/N (3000), Santa Fe, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290 (C1425FQB), CABA, Argentina; Proyecto Yacaré - Lab. Zoología Aplicada: Anexo Vertebrados (FHUC-UNL/MMA), Av. Aristóbulo del Valle 8700 (3000), Santa Fe, Argentina.
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18
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Jarosiewicz M, Krokosz A, Marczak A, Bukowska B. Changes in the activities of antioxidant enzymes and reduced glutathione level in human erythrocytes exposed to selected brominated flame retardants. CHEMOSPHERE 2019; 227:93-99. [PMID: 30986606 DOI: 10.1016/j.chemosphere.2019.04.008] [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: 01/15/2019] [Revised: 04/01/2019] [Accepted: 04/02/2019] [Indexed: 06/09/2023]
Abstract
Currently, more and more concerns are related to oxidative stress appearing in cells as a result of xenobiotics action. It has been found that selected brominated flame retardants (BFRs) can cause reactive oxygen species (ROS) induction at environmental concentrations. Excessive ROS induction can contribute to the redox imbalance in the cell. Therefore, the aim of our work was to evaluate the effect of selected BFRs on the activity of antioxidant enzymes, i.e. superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GSH-Px) and the level of reduced glutathione (GSH) in human erythrocytes. Erythrocytes were incubated with tetrabromobisphenol A (TBBPA), tetrabromobisphenol S (TBBPS), 2,4-dibromophenol (2,4-DBP), 2,4,6-tribromophenol (2,4,6-TBP) and pentabromophenol (PBP) in the concentration ranging from 1 to 100 μg/ml. This study has shown that the BFRs studied disturbed redox balance in human erythrocytes. TBBPA caused more significant decrease in antioxidant enzymes activities than other compounds examined. Among bromophenols studied, 2,4-DBP most strongly affected antioxidant system, which indicated that the number of bromine atoms in the molecule did not significantly affect the pro-oxidative properties of the BFRs examined.
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Affiliation(s)
- Monika Jarosiewicz
- Department of Biophysics of Environmental Pollution, Institute of Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143 St., 90-236, Lodz, Poland.
| | - Anita Krokosz
- Department of Molecular Biophysics, Division of Radiobiology, Institute of Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143 St., 90-236, Lodz, Poland
| | - Agnieszka Marczak
- Department of Medical Biophysics, Institute of Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143 St., 90-236, Lodz, Poland
| | - Bożena Bukowska
- Department of Biophysics of Environmental Pollution, Institute of Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143 St., 90-236, Lodz, Poland
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Zhang J, Wang Y, Sun KM, Fang K, Tang X. A study of oxidative stress induced by two polybrominated diphenyl ethers in the rotifer Brachionus plicatilis. MARINE POLLUTION BULLETIN 2016; 113:408-413. [PMID: 27765404 DOI: 10.1016/j.marpolbul.2016.10.032] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Revised: 10/12/2016] [Accepted: 10/13/2016] [Indexed: 06/06/2023]
Abstract
Polybrominated diphenyl ethers (PBDEs) are widely dispersed persistent organic pollutants in the marine ecosystem. However, their toxic mechanisms in marine organisms, especially invertebrates, remain poorly understood. Two common congeners of PBDEs, tetrabrominated diphenyl ether-47 (BDE-47) and decabrominated diphenyl ether-209 (BDE-209), were investigated. Their toxic mechanisms, with a focus on oxidative stress, were examined in rotifer Brachionus plicatilis. Overproduction of reactive oxygen species (ROS) was induced by two PBDEs. The expression of superoxide dismutase (SOD) mRNA was increased, suggesting SOD play a main role in ROS-scavenging. The intercellular concentrations of calcium ([Ca2+]in) and the expression of calmodulin (CaM) mRNA were increased. This indicates the calcium ion (Ca2+) signaling channel is involved in PBDEs stress. Further analysis showed that the reproductive system might be the target site for toxicity of PBDEs. Moreover, high value of detection indexes in BDE-47 experimental groups suggested BDE-47 might cause higher oxidative damage than BDE-209 in rotifers.
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Affiliation(s)
- Jing Zhang
- Department of Marine Ecology, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - You Wang
- Department of Marine Ecology, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China.
| | - Kai-Ming Sun
- The First Institute of Oceanography (FIO), State Oceanic Administration (SOA), Qingdao 266061, China
| | - Kuan Fang
- Department of Marine Ecology, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Xuexi Tang
- Department of Marine Ecology, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China.
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20
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Comet assay: an essential tool in toxicological research. Arch Toxicol 2016; 90:2315-36. [DOI: 10.1007/s00204-016-1767-y] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Accepted: 06/14/2016] [Indexed: 01/02/2023]
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