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Lemos LS, Angarica LM, Hauser-Davis RA, Quinete N. Cortisol as a Stress Indicator in Fish: Sampling Methods, Analytical Techniques, and Organic Pollutant Exposure Assessments. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:6237. [PMID: 37444085 PMCID: PMC10341563 DOI: 10.3390/ijerph20136237] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 06/21/2023] [Accepted: 06/22/2023] [Indexed: 07/15/2023]
Abstract
Cortisol is the main glucocorticoid released during stress responses in most fish and has been employed to investigate different stressors, including organic pollutants. This review discusses shifts in cortisol concentrations and examines different matrix sampling methods (invasive vs. minimally or non-invasive) and the main analytical cortisol determination techniques (immunoassays and liquid chromatography-tandem mass spectrometry). Assessments on organic pollutant exposure in fish and associated adverse effects are also discussed. Studies in this regard may aid in identifying organic pollutant toxicological modes of action, mechanistic response, toxicokinetics, and toxicodynamics, as well as pollution sources and associated health risks in fish, ultimately aiding in the development of effective management strategies to mitigate the impacts of organic pollutants on fish populations and their associated ecosystems.
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Affiliation(s)
- Leila Soledade Lemos
- Institute of Environment, Florida International University, North Miami, FL 33181, USA
- Department of Chemistry and Biochemistry, Florida International University, North Miami, FL 33181, USA
| | - Leo Moreira Angarica
- Department of Chemistry and Biochemistry, Florida International University, North Miami, FL 33181, USA
| | - Rachel Ann Hauser-Davis
- Laboratório de Avaliação e Promoção da Saúde Ambiental, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz (Fiocruz), Rio de Janeiro 21040-900, RJ, Brazil
| | - Natalia Quinete
- Institute of Environment, Florida International University, North Miami, FL 33181, USA
- Department of Chemistry and Biochemistry, Florida International University, North Miami, FL 33181, USA
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Segner H, Rehberger K, Bailey C, Bo J. Assessing Fish Immunotoxicity by Means of In Vitro Assays: Are We There Yet? Front Immunol 2022; 13:835767. [PMID: 35296072 PMCID: PMC8918558 DOI: 10.3389/fimmu.2022.835767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 02/01/2022] [Indexed: 11/28/2022] Open
Abstract
There is growing awareness that a range of environmental chemicals target the immune system of fish and may compromise the resistance towards infectious pathogens. Existing concepts to assess chemical hazards to fish, however, do not consider immunotoxicity. Over recent years, the application of in vitro assays for ecotoxicological hazard assessment has gained momentum, what leads to the question whether in vitro assays using piscine immune cells might be suitable to evaluate immunotoxic potentials of environmental chemicals to fish. In vitro systems using primary immune cells or immune cells lines have been established from a wide array of fish species and basically from all immune tissues, and in principal these assays should be able to detect chemical impacts on diverse immune functions. In fact, in vitro assays were found to be a valuable tool in investigating the mechanisms and modes of action through which environmental agents interfere with immune cell functions. However, at the current state of knowledge the usefulness of these assays for immunotoxicity screening in the context of chemical hazard assessment appears questionable. This is mainly due to a lack of assay standardization, and an insufficient knowledge of assay performance with respect to false positive or false negative signals for the different toxicant groups and different immune functions. Also the predictivity of the in vitro immunotoxicity assays for the in vivo immunotoxic response of fishes is uncertain. In conclusion, the currently available database is too limited to support the routine application of piscine in vitro assays as screening tool for assessing immunotoxic potentials of environmental chemicals to fish.
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Affiliation(s)
- Helmut Segner
- Centre for Fish and Wildlife Health, Department of Pathobiology and Infectious Diseases, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Kristina Rehberger
- Centre for Fish and Wildlife Health, Department of Pathobiology and Infectious Diseases, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | | | - Jun Bo
- Laboratory of Marine Biology and Ecology, Third Institute of Oceanography, Xiamen, China
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Cary TL, Karasov WH. Larval Exposure to Polychlorinated Biphenyl-126 Led to a Long-Lasting Decrease in Immune Function in Postmetamorphic Juvenile Northern Leopard Frogs, Lithobates pipiens. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2022; 41:81-94. [PMID: 34807990 DOI: 10.1002/etc.5233] [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: 02/02/2021] [Revised: 10/01/2021] [Accepted: 10/17/2021] [Indexed: 06/13/2023]
Abstract
Amphibian populations are decreasing worldwide, and pollution is a contributing factor. Polychlorinated biphenyls (PCBs) are a class of persistent organic pollutants known to exert immunotoxicity. To assess impacts of PCBs on frogs, we exposed Lithobates pipiens tadpoles to a diet of PCB-126 (0-5 ng PCB-126/g wet food) through metamorphic climax. Postmetamorphic frogs were immunized with keyhole limpet hemocyanin (KLH); then production of KLH-specific IgY, as well as total IgY and IgM, was measured (Trial I). A second larval study (0 and 7.3 ng PCB-126/g wet food) was performed to investigate whether PCB altered antigenic responses in prometamorphic tadpoles (Gosner Stage 36-39), and to measure the innate immune response of postmetamorphic frogs (Trial II). After larval PCB-126 exposure, both KLH-specific IgY levels and complement activity were reduced. Because postmetamorphic frogs carried a body burden of PCB-126 (2.4 ng/g or less), we wanted to determine whether the effect on immune response was due to larval exposure or to the resulting body burden as frogs. To test this, we reared tadpoles under control conditions (no PCB), and limited PCB exposure to postmetamorphosis only by injecting 2-week-old frogs with 10 ng PCB-126/g (Trial III). The resulting body burden (3.4 ng/g) was similar to that of frogs in Trial I, but we no longer detected suppression of KLH-specific IgY or hemolytic activity. These results suggest life-stage-specific immune responses; however, because we administered PCB-126 differently between trials, it is premature to conclude that these differences are intrinsically life stage dependent, and further study is warranted. Regardless, our study demonstrated a long-lasting effect of larval PCB-126 exposure that persisted through metamorphosis and suppressed frog immunity. Environ Toxicol Chem 2022;41:81-94. © 2021 SETAC.
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Affiliation(s)
- Tawnya L Cary
- Department of Zoology, University of Wisconsin, Madison, Wisconsin, USA
- Department of Biology, Beloit College, Beloit, Wisconsin, USA
| | - William H Karasov
- Department of Zoology, University of Wisconsin, Madison, Wisconsin, USA
- Department of Forest & Wildlife Ecology, University of Wisconsin, Madison, Wisconsin, USA
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Al-Otaibi AM, Al-Balawi HFA, Ahmad Z, Suliman EM. Toxicity bioassay and sub-lethal effects of diazinon on blood profile and histology of liver, gills and kidney of catfish, Clarias gariepinus. BRAZ J BIOL 2019; 79:326-336. [DOI: 10.1590/1519-6984.185408] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2017] [Accepted: 12/14/2017] [Indexed: 11/21/2022] Open
Abstract
Abstract The catfish, Clarias gariepinus, was exposed to different acute concentrations (5-10 mg/l) of diazinon and the Lc50 value was recorded as high as 7.3 mg/l for 96 hours. The fishes exposed to three sub-lethal levels of diazinon (0.73, 1.095 and 1.46 mg/l) for 30 days showed that the pesticide induces changes in different blood parameters. Number of red blood cells (RBC), haemoglobin level and haematocrit values were elevated whereas white blood cells (WBC) count was reduced. Various blood indices like mean corpuscular volume (MCV), mean corpuscular haemoglobine (MCH) and mean corpuscular haemoglobine concentration (MCHC) vary insignificantly in the fish treated with diazinon. Glucose level and activity level of aspartate aminotransferase (AST) and alanine aminotransferase (ALT) was increased in Clarias gariepinus exposed to diazinon. Protein level in plasma of fish treated with pesticide was changed but the change was insignificant. Histological changes in the liver, gills and kidney of fishes exposed to diazinon were apparent when compared to control. Hepatocytes necrosis and bleeding were more distinct in the fishes exposed to pesticide. Glomerulus hypertrophy and bleeding in kidneys; and fusion and degeneration of secondary lamellae and epithelial hyperplasia in gills were also observed in the exposed fish.
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Affiliation(s)
| | | | - Z. Ahmad
- King Saud University, Kingdom of Saudi Arabia
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5
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Borgia VJF, Thatheyus AJ, Murugesan AG, Alexander SCP, Geetha I. Effects of effluent from electoplating industry on the immune response in the freshwater fish, Cyprinus carpio. FISH & SHELLFISH IMMUNOLOGY 2018; 79:86-92. [PMID: 29738873 DOI: 10.1016/j.fsi.2018.05.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2018] [Revised: 04/28/2018] [Accepted: 05/04/2018] [Indexed: 06/08/2023]
Abstract
The present study was designed to assess the effect of sublethal concentrations of electoplating industry effluent (EIE) on the non-specific and specific immune responses in the freshwater fish, Cyprinus carpio. Sublethal concentrations of electroplating industry effluent such as 0.004, 0.007, 0.010 and 0.013% were chosen based on the LC50 values. Experimental fish were exposed to these sublethal concentrations of EIE for 28 days. After 7, 14, 21 and 28 days of treatment, non-specific immune response by serum lysozyme activity, myeloperoxidase activity and antiprotease activity and specific immune response by antibody response to Aeromonas hydrophila using bacterial agglutination assay and ELISA were assessed. The results showed that chronic exposure of fish to 0.004, 0.007, 0.010 and 0.013% EIE, dose-dependently decreased the non-specific and specific immune responses on all the days tested compared to control fish whereas statistically significant suppressive effects were observed in fish exposed to 0.013% of EIE on all activities tested.
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Affiliation(s)
- V J Florence Borgia
- PG and Research Centre of Zoology, J. A. College for Women, Periyakulam, Tamil Nadu, India
| | - A J Thatheyus
- PG and Research Department of Zoology, The American College, Madurai, Tamil Nadu, India.
| | - A G Murugesan
- S.P.K.Centre of Excellence in Environmental Sciences, Manonmaniam Sundaranar University, Alwarkurichi, Tamil Nadu, India
| | | | - I Geetha
- PG and Research Centre of Zoology, J. A. College for Women, Periyakulam, Tamil Nadu, India
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Ruiz MD, Iriel A, Yusseppone MS, Ortiz N, Di Salvatore P, Fernández Cirelli A, Ríos de Molina MC, Calcagno JA, Sabatini SE. Trace metals and oxidative status in soft tissues of caged mussels (Aulacomya atra) on the North Patagonian coastline. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 155:152-161. [PMID: 29510310 DOI: 10.1016/j.ecoenv.2018.02.064] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Revised: 02/20/2018] [Accepted: 02/22/2018] [Indexed: 06/08/2023]
Abstract
This study investigated metal accumulation and oxidative effects in mantle, gill and digestive gland of the ribbed mussel Aulacomya atra from the Argentinean North Patagonian coastline. Mussels were transplanted over an 18-month period from a site with low anthropogenic impact to a harbor site with higher seawater concentration of aluminum, chromium, copper, manganese, nickel and zinc. Total trace metal concentration in seawater did not change throughout the 18-month transplant in either site. A. atra bioaccumulated metals in digestive gland, gills and mantle at different levels. Digestive gland had the highest concentration of metals, especially towards the end of the transplant experiment in the harbor area. Mussels transplanted to the harbor site experienced an upregulation in their antioxidant system, which likely explains the lack of oxidative damage to lipids despite higher metal accumulation. These results demonstrate that A. atra selectively accumulates metals from the water column and their prooxidant effects depend on the tissue antioxidant defenses and the exposure time.
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Affiliation(s)
- M D Ruiz
- Instituto de Ciencia y Tecnología Dr. Cesar Milstein, (CONICET), Saladillo 2468, C1440FFX Ciudad Autónoma de Buenos Aires, Argentina
| | - A Iriel
- Instituto de Investigaciones en Producción Animal / INPA(UBA-CONICET) / Centro de Estudios Transdisciplinarios del Agua (CETA), Facultad de Ciencias Veterinarias, Universidad de Buenos Aires, Av. Chorroarín 280, C1427CWO Ciudad Autónoma de Buenos Aires, Argentina
| | - M S Yusseppone
- Instituto de Investigaciones Marinas y Costeras (IIMyC), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional de Mar del Plata (UNMDP), CC 1260 Correo Central (B7600WAG), Mar del Plata, Argentina
| | - N Ortiz
- Instituto de Biología de Organismos Marinos (IBIOMAR - CCT CONICET-CENPAT), Blvd. Brown 2915, 9120 Puerto Madryn, Argentina; Universidad Tecnológica Nacional - Facultad Regional Chubut, Av. del Trabajo 1536, 9120 Puerto Madryn, Argentina
| | - P Di Salvatore
- Centro Austral de Investigaciones Científicas (CADIC)-CONICET, Houssay 200, V9410CAB Ushuaia, Argentina
| | - A Fernández Cirelli
- Instituto de Investigaciones en Producción Animal / INPA(UBA-CONICET) / Centro de Estudios Transdisciplinarios del Agua (CETA), Facultad de Ciencias Veterinarias, Universidad de Buenos Aires, Av. Chorroarín 280, C1427CWO Ciudad Autónoma de Buenos Aires, Argentina
| | - M C Ríos de Molina
- Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pab. II, Intendente Guiraldes 2160, C1428EHA Ciudad Autónoma de Buenos Aires, Argentina; CONICET, Universidad de Buenos Aires. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), Pab. II, Intendente Guiraldes 2160, C1428EHA Ciudad Autónoma de Buenos Aires, Argentina
| | - J A Calcagno
- Centro de Estudios Biomédicos, Biotecnológicos, Ambientales y de Diagnóstico (CEBBAD)- Departamento de Ciencias Naturales y Antropológicas-Universidad Maimonides, Hidalgo 775, C1405BCK Ciudad Autónoma de Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
| | - S E Sabatini
- Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pab. II, Intendente Guiraldes 2160, C1428EHA Ciudad Autónoma de Buenos Aires, Argentina; CONICET, Universidad de Buenos Aires. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), Pab. II, Intendente Guiraldes 2160, C1428EHA Ciudad Autónoma de Buenos Aires, Argentina; Departamento de Biodiversidad y Biología Experimental, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pab. II, Intendente Guiraldes 2160, C1428EHA Ciudad Autónoma de Buenos Aires, Argentina.
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Kaczorek E, Szarek J, Mikiewicz M, Terech-Majewska E, Schulz P, Małaczewska J, Wójcik R, Siwicki AK. Effect of feed supplementation with kynurenic acid on the morphology of the liver, kidney and gills in rainbow trout (Oncorhynchus mykiss Walbaum, 1792), healthy and experimentally infected with Yersinia ruckeri. JOURNAL OF FISH DISEASES 2017; 40:873-884. [PMID: 27690267 DOI: 10.1111/jfd.12567] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Revised: 09/06/2016] [Accepted: 09/07/2016] [Indexed: 06/06/2023]
Abstract
Kynurenic acid (KYNA) is an endogenous substance produced on the kynurenine pathway which is primarily known for its neuroactive properties. Recently, it has been proven that KYNA is a selective ligand for G protein-coupled receptor (GPR 35), presented on immunocompetent cells such as T lymphocytes. This opens up new possibilities of its application as an immunostimulating substance in aquaculture. Thus far, no histopathological investigations in fish have been completed to evaluate influence of KYNA supplementation in feed. This study has been undertaken to determine the effect of feed supplementation with KYNA (2.5, 25, 250 mg kg-1 of feed) for 28 days on the liver, gills and kidney in healthy fish and experimentally infected with Yersinia ruckeri. In a control group were observed a fatty liver, which is natural for this fish species in the autumn and winter season. As the dose of the supplement was increased, the fat liver changed, it decreased or completely disappeared. Additionally, inflammatory changes occurred in all the analysed organs, and their intensification was dose dependent. In the fish experimentally infected, KYNA caused aggravation of the signs in the liver, kidneys and gills, and the effect was dose dependent. The results implicate that KYNA may be a stressor for fish.
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Affiliation(s)
- E Kaczorek
- Department of Microbiology and Clinical Immunology, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - J Szarek
- Department of Pathophysiology, Forensic Veterinary Medicine and Administration, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - M Mikiewicz
- Department of Pathological Anatomy, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - E Terech-Majewska
- Department of Epizootiology, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - P Schulz
- Department of Microbiology and Clinical Immunology, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - J Małaczewska
- Department of Microbiology and Clinical Immunology, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - R Wójcik
- Department of Microbiology and Clinical Immunology, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - A K Siwicki
- Department Fish Pathology and Immunology, Inland Fisheries Institute in Olsztyn, Olsztyn, Poland
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Evaluation of mosquito Culex quinquefasciatus mortality rate in the face of lethal concentration of deltamethrin and diazinon toxins. TRANSYLVANIAN REVIEW OF SYSTEMATICAL AND ECOLOGICAL RESEARCH 2017. [DOI: 10.1515/trser-2017-0012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Because of huge consumption for agricultural purpose, presence of pesticides in surface waters of Golestan province (north east of Iran) is very common. These pesticides finally could be stored in aquatic ecosystems and have proven toxic effects on aquatic animals. Culex quinquefasciatus is one of the most common aquatic insects living mainly in the wetlands. The aim of this study was to determine the acute toxicity of deltamethrin and diazinon as potentially perilous organic pesticides and to assess mortality effects of these chemicals on the mosquito Culex quinquefasciatus in the form of LC50.
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Rehberger K, Werner I, Hitzfeld B, Segner H, Baumann L. 20 Years of fish immunotoxicology - what we know and where we are. Crit Rev Toxicol 2017; 47:509-535. [PMID: 28425344 DOI: 10.1080/10408444.2017.1288024] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Despite frequent field observations of impaired immune response and increased disease incidence in contaminant-exposed wildlife populations, immunotoxic effects are rarely considered in ecotoxicological risk assessment. The aim of this study was to review the literature on immunotoxic effects of chemicals in fish to quantitatively evaluate (i) which experimental approaches were used to assess immunotoxic effects, (ii) whether immune markers exist to screen for potential immunotoxic activities of chemicals, and (iii) how predictive those parameters are for adverse alterations of fish immunocompetence and disease resistance. A total of 241 publications on fish immunotoxicity were quantitatively analyzed. The main conclusions included: (i) To date, fish immunotoxicology focused mainly on innate immune responses and immunosuppressive effects. (ii) In numerous studies, the experimental conditions are poorly documented, as for instance age or sex of the fish or the rationale for the selected exposure conditions is often missing. (iii) Although a broad variety of parameters were used to assess immunotoxicity, the rationale for the choice of measured parameters was often not given, remaining unclear how they link to the suspected immunotoxic mode of action of the chemicals. (iv) At the current state of knowledge, it is impossible to identify a set of immune parameters that could reliably screen for immunotoxic potentials of chemicals. (v) Similarly, in fish immunotoxicology there is insufficient understanding of how and when chemical-induced modulations of molecular/cellular immune changes relate to adverse alterations of fish immunocompetence, although this would be crucial to include immunotoxicity in ecotoxicological risk assessment.
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Affiliation(s)
- Kristina Rehberger
- a Centre for Fish and Wildlife Health, Vetsuisse Faculty , University of Bern , Bern , Switzerland
| | - Inge Werner
- b Swiss Centre for Applied Ecotoxicology , Dübendorf , Switzerland
| | | | - Helmut Segner
- a Centre for Fish and Wildlife Health, Vetsuisse Faculty , University of Bern , Bern , Switzerland
| | - Lisa Baumann
- a Centre for Fish and Wildlife Health, Vetsuisse Faculty , University of Bern , Bern , Switzerland
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Lavradas RT, Rocha RCC, Bordon ICAC, Saint'Pierre TD, Godoy JM, Hauser-Davis RA. Differential metallothionein, reduced glutathione and metal levels in Perna perna mussels in two environmentally impacted tropical bays in southeastern Brazil. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2016; 129:75-84. [PMID: 26994306 DOI: 10.1016/j.ecoenv.2016.03.011] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Revised: 03/05/2016] [Accepted: 03/07/2016] [Indexed: 06/05/2023]
Abstract
Mussel farming is an important economic activity in Brazil, and these organisms are consumed by the majority of the population in most coastal zones in the country. However, despite the increasing pollution of aquatic ecosystems in Brazil, little is known about the biochemical activity in mussels in response to metal exposure. In this context, the aim of the present study was to investigate metal and metalloid exposure effects in Perna perna mussels, by determining metal levels, the induction of metallothionein (MT) synthesis, and oxidative stress, in the form of reduced glutathione (GSH) in 3 contaminated areas from the Guanabara Bay in comparison to a reference site, Ilha Grande Bay, both in summer and winter. Metal and metalloid concentrations were also compared to Brazilian and international guidelines, to verify potential health risks to human consumers. Mussels from all sampling sites were shown to be improper for human consumption due to metal contamination, including Ilha Grande Bay, which has previously been considered a reference site. Several statistically significant correlations and seasonal differences were observed between MT, GSH and metals and metalloids in both analyzed tissues. A Discriminant Canonical Analysis indicated that the digestive gland is a better bioindicator for environmental contamination by metals and metalloids in this species and offers further proof that MT variations observed are due to metal exposure and not oxidative stress, since GSH influence for both muscle tissue and the digestive glands was non-significant in this analysis. These results show that P. perna mussels are an adequate sentinel species for metal contamination with significant effects on oxidative stress and metal exposure biomarkers. To the best of our knowledge, this is the first study to report metals, metalloids, MT and GSH levels in the muscle tissue of this species.
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Affiliation(s)
- Raquel T Lavradas
- Pontifical Catholic University of Rio de Janeiro (PUC-Rio), Chemistry Department, Rua Marquês de São Vicente, 225, Gávea, CEP 22453-900 Rio de Janeiro, RJ, Brazil
| | - Rafael C C Rocha
- Pontifical Catholic University of Rio de Janeiro (PUC-Rio), Chemistry Department, Rua Marquês de São Vicente, 225, Gávea, CEP 22453-900 Rio de Janeiro, RJ, Brazil
| | - Isabella C A C Bordon
- São Paulo State University (UNESP), Campus do Litoral Paulista, Praça Infante Dom Henrique s/n°, Parque Bitaru, CEP 11330-900 São Vicente, SP, Brazil
| | - Tatiana D Saint'Pierre
- Pontifical Catholic University of Rio de Janeiro (PUC-Rio), Chemistry Department, Rua Marquês de São Vicente, 225, Gávea, CEP 22453-900 Rio de Janeiro, RJ, Brazil
| | - José M Godoy
- Pontifical Catholic University of Rio de Janeiro (PUC-Rio), Chemistry Department, Rua Marquês de São Vicente, 225, Gávea, CEP 22453-900 Rio de Janeiro, RJ, Brazil
| | - Rachel A Hauser-Davis
- Federal University of the State of Rio de Janeiro - UNIRIO, Neotropical Biodiversity Post-Graduate Program, Av. Pasteur, 458, Urca, CEP 22290-240 Rio de Janeiro, RJ, Brazil.
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11
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Ma J, Feng Y, Xie W, Yang L, Li X. Immune response in common carp (Cyprinus carpioL.) following glyphosate-exposure. TOXIN REV 2016. [DOI: 10.3109/15569543.2015.1133647] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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12
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Schreier HMC, Hsu HH, Amarasiriwardena C, Coull BA, Schnaas L, Téllez-Rojo MM, Tamayo y Ortiz M, Wright RJ, Wright RO. Mercury and psychosocial stress exposure interact to predict maternal diurnal cortisol during pregnancy. Environ Health 2015; 14:28. [PMID: 25889585 PMCID: PMC4377006 DOI: 10.1186/s12940-015-0016-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2014] [Accepted: 03/10/2015] [Indexed: 05/20/2023]
Abstract
BACKGROUND Disrupted maternal prenatal cortisol production influences offspring development. Factors influencing the hypothalamic-pituitary-adrenal axis include social (e.g., stressful life events) and physical/chemical (e.g., toxic metals) pollutants. Mercury (Hg) is a common contaminant of fish and exposure is widespread in the US. No prior study has examined the joint associations of stress and mercury with maternal cortisol profiles in pregnancy. OBJECTIVES To investigate potential synergistic influences of prenatal stress and Hg exposures on diurnal cortisol in pregnant women. METHODS Analyses included 732 women (aged 27.4 ± 5.6 years) from a Mexico City pregnancy cohort. Participants collected saliva samples on two consecutive days (mean 19.52 ± 3.00 weeks gestation) and reported life stressors over the past 6 months. Hg was assessed in toe nail clippings collected during pregnancy. RESULTS There were no main effects of Hg or psychosocial stress exposure on diurnal cortisol (ps > .20) but strong evidence of interaction effects on cortisol slope (interaction B = .006, SE = .003, p = .034) and cortisol at times 1 and 2 (interaction B = -.071, SE = .028, p = .013; B = -.078, SE = .032, p = .014). Women above the median for Hg and psychosocial stress exposure experienced a blunted morning cortisol response compared to women exposed to higher stress but lower Hg levels. CONCLUSIONS Social and physical environmental factors interact to alter aspects of maternal diurnal cortisol during pregnancy. Research focusing solely on either domain may miss synergistic influences with potentially important consequences to the offspring.
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Affiliation(s)
- Hannah M C Schreier
- Department of Pediatrics, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1198, New York, NY, 10029, USA.
| | - Hsiao-Hsien Hsu
- Department of Preventive Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
| | - Chitra Amarasiriwardena
- Department of Preventive Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
| | - Brent A Coull
- Department of Biostatistics, Harvard School of Public Health, Boston, MA, USA.
- Department of Environmental Health, Harvard School of Public Health, Boston, MA, USA.
| | - Lourdes Schnaas
- Division of Research on Public Health, National Institute of Perinatology, Mexico City, Mexico.
| | - Martha María Téllez-Rojo
- Center for Evaluation Research and Surveys, National Institute of Public Health, Cuernavaca, Morelos, Mexico.
| | - Marcela Tamayo y Ortiz
- Center for Research in Nutrition and Health, National Institute of Public Health, Cuernavaca, Morelos, Mexico.
| | - Rosalind J Wright
- Department of Pediatrics, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1198, New York, NY, 10029, USA.
| | - Robert O Wright
- Department of Preventive Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
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13
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Polat F, Akın Ş, Yıldırım A, Dal T. The effects of point pollutants-originated heavy metals (lead, copper, iron, and cadmium) on fish living in Yeşilırmak River, Turkey. Toxicol Ind Health 2015; 32:1438-1449. [DOI: 10.1177/0748233714565709] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
In this study, the association between heavy metals in water and cyprinids sampled from the Yeşilırmak River stretch, which is frequently exposed to pollutant sources (a sugar production factory (Turhal) and solid wastes dump area (Taşlıçiftlik) was explored, and the oxidative effects of heavy metals on cyprinids were evaluated through analyzing some liver enzymes, namely, superoxide dismutase (SOD), catalase (CAT), malondialdehyde (MDA), and cortisol. The heavy metal concentrations of both fish and water, collected from three different locations along the river during the summer of 2011 and winter of 2010 (Turhal, Taşlıçiftlik, and Gümenek), were determined by inductively coupled plasma atomic emission spectroscopy (ICP-AES). The water and fish liver heavy metal concentrations exhibited increasing trends from upstream (Gümenek) to downstream (Turhal). The water and liver samples collected during the summer had higher heavy metal concentrations than those obtained during the winter. The mean heavy metal concentrations increased from Gümenek to Turhal. The liver heavy metal concentrations were higher than those in the water and exhibited almost the same increasing trend from Gümenek to Turhal. Positive relationships between liver and water heavy metal concentrations, especially for cadmium ( R2 = 0.91) and lead ( R2 = 0.98), were obtained. Among the liver enzymes, only MDA followed the same increasing trend from Gümenek to Turhal as was obtained for heavy metals. On the other hand, CAT and SOD had a contrary spatial pattern of change to those of heavy metals and MDA. Although the values of heavy metals and MDA in Taşlıçiftlik were between the two other locations, fish inhabiting this locality had significantly higher values of cortisol, which is an indication of the other stress-causing factors for fish.
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Affiliation(s)
- Fatih Polat
- Department of Environmental Protection, Almus Vocational School, Gaziosmanpaşa University, Tokat, Turkey
| | - Şenol Akın
- Department of Fisheries, Faculty of Agriculture, Gaziosmanpaşa University, Tokat, Turkey
| | - Alper Yıldırım
- Siirt University, Siirt Vocational School, Siirt, Turkey
| | - Tarık Dal
- Department of Environmental Protection, Almus Vocational School, Gaziosmanpaşa University, Tokat, Turkey
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Arain MB, Ullah I, Niaz A, Shah N, Shah A, Hussain Z, Tariq M, Afridi HI, Baig JA, Kazi TG. Evaluation of water quality parameters in drinking water of district Bannu, Pakistan: Multivariate study. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.swaqe.2014.12.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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15
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Kishore Kumar R, Siva Kumar K, Jyothi NVV, Rajasekhar J, Venkateswarlu P. Preconcentration of Cu(II) and Ni(II) ions in edible fish organs by solid phase extraction using triton X-100 resin. JOURNAL OF ANALYTICAL CHEMISTRY 2013. [DOI: 10.1134/s1061934813050110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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16
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Hauser-Davis RA, Bastos FF, de Oliveira TF, Ziolli RL, de Campos RC. Fish bile as a biomarker for metal exposure. MARINE POLLUTION BULLETIN 2012; 64:1589-1595. [PMID: 22683104 DOI: 10.1016/j.marpolbul.2012.05.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2012] [Revised: 05/09/2012] [Accepted: 05/17/2012] [Indexed: 06/01/2023]
Abstract
Fish accumulate several trace elements in muscle, gills and liver, however studies also indicate that metals can be excreted through bile. Since metal contamination leads to modifications in bile composition, biliary excretion offers an alternative way to evaluate the presence of trace-elements. Bile is easier to obtain than other organs and presents a simpler matrix, making it easier for chemical pre-treatment. To verify if bile can be useful as a biomonitoring tool for metal contamination, liver and bile trace element concentrations were determined and correlated. The Artificial Neural Networks statistical technique was used to verify if liver trace-element quantification could be substituted by bile analysis. Results show that significant correlations were obtained between trace elements in bile and liver and the ANN validated the hypothesis that certain trace-elements in bile could be utilized instead of liver trace-elements. Further studies in this field are of interest to further validate this biomarker.
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Affiliation(s)
- Rachel Ann Hauser-Davis
- Departamento de Química, Pontifícia Universidade Católica-Rio de Janeiro-PUC-Rio, Rua Marquês de São Vicente 225, Gávea, CEP: 22453-900 Rio de Janeiro, RJ, Brazil.
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17
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Dhaneesh KV, Gopi M, Noushad KM, Ganeshamurthy R, Kumar TTA, Balasubramanian T. Determination of metal levels in thirteen fish species from Lakshadweep Sea. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2012; 88:69-73. [PMID: 22057231 DOI: 10.1007/s00128-011-0459-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2011] [Accepted: 10/28/2011] [Indexed: 05/22/2023]
Abstract
A bio-monitoring study was performed to investigate the concentration of certain metals (cadmium, cobalt, copper, iron, magnesium, manganese, nickel, lead and zinc) in gill, skin and muscle of thirteen demersal fish species of Agatti Coast of Lakshadweep Sea. All the metal concentrations in gill are higher than skin and muscle. Concentrations of toxic metals such as Cd (0.61 ± 0.67 μg g(-1) in Gerres longirostris), Mn (0.83 ± 1.21 μg g(-1) in Lutjanus fulvus) and Ni (0.56 ± 0.83 μg g(-1) in L. bengalensis) were well above the permissible limits suggested by World Health Organization and Food and Agricultural Organizations.
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Affiliation(s)
- Kottila Veettil Dhaneesh
- Centre of Advanced Study in Marine Biology, Faculty of Marine Sciences, Annamalai University, Parangipettai, 608 502, Tamil Nadu, India.
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18
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Khajeh M, Ghanbari M. Optimization of Microwave-Assisted Extraction Procedure to Determine Metal in Fish Muscles Using Box–Behnken Design. FOOD ANAL METHOD 2010. [DOI: 10.1007/s12161-010-9185-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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19
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Rana T, Asit Kumar Bera, Das S, Bhattacharya D, Pan D, Bandyopadhyay S, De S, Subrata Kumar Das. Mushroom lectin protects arsenic induced apoptosis in hepatocytes of rodents. Hum Exp Toxicol 2010; 30:307-17. [DOI: 10.1177/0960327110372642] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Acute and chronic arsenic exposure result in toxicity both in human and animal beings and cause many hepatic and renal manifestations. The present study stated that mushroom lectin prevents arsenic-induced apoptosis. Apoptosis was measured by morphological alterations, cell proliferation index (CPI), phagocytic activity (nitro blue tetrazolium index; NBT), nitric oxide (NO) production, terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) assay, DNA fragmentation and caspase-3 activity. Arsenic exposure at 5 μM in the form of sodium arsenite resulted in significant elevation of deformed cells, NO production, TUNEL stained nuclei of hepatocytes, DNA fragmentation and caspase-3 activity. But the CPI and NBT index were significantly declined in arsenic-treated hepatocytes. The beneficial effect of mushroom lectin at 10 μg/mL, 20 μg/mL and 50 μg/mL) showed increased CPI and phagocytic activity. Mushroom lectin at those concentrations reduced deformed cells, NO production, DNA fragmentation and caspase-3 activity of hepatocytes. But significant better protection was observed in 50 μg/mL mushroom lectin-treated hepatocytes. This finding may be of therapeutic benefit in people suffering from chronic arsenic exposure.
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Affiliation(s)
- Tanmoy Rana
- Indian Veterinary Research Institute, Eastern Regional Station, 37, Belgachia Road, Kolkata, India
| | - Asit Kumar Bera
- Indian Veterinary Research Institute, Eastern Regional Station, 37, Belgachia Road, Kolkata, India,
| | - Subhashree Das
- Indian Veterinary Research Institute, Eastern Regional Station, 37, Belgachia Road, Kolkata, India
| | - Debasis Bhattacharya
- Indian Veterinary Research Institute, Eastern Regional Station, 37, Belgachia Road, Kolkata, India
| | - Diganta Pan
- Indian Veterinary Research Institute, Eastern Regional Station, 37, Belgachia Road, Kolkata, India
| | - Subhasish Bandyopadhyay
- Indian Veterinary Research Institute, Eastern Regional Station, 37, Belgachia Road, Kolkata, India
| | - Sumanta De
- Indian Veterinary Research Institute, Eastern Regional Station, 37, Belgachia Road, Kolkata, India
| | - Subrata Kumar Das
- Indian Veterinary Research Institute, Eastern Regional Station, 37, Belgachia Road, Kolkata, India
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20
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Girón-Pérez MI, Velázquez-Fernández J, Díaz-Resendiz K, Díaz-Salas F, Canto-Montero C, Medina-Díaz I, Robledo-Marenco M, Rojas-García A, Zaitseva G. Immunologic parameters evaluations in Nile tilapia (Oreochromis niloticus) exposed to sublethal concentrations of diazinon. FISH & SHELLFISH IMMUNOLOGY 2009; 27:383-385. [PMID: 19540348 DOI: 10.1016/j.fsi.2009.06.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2009] [Revised: 06/01/2009] [Accepted: 06/04/2009] [Indexed: 05/27/2023]
Abstract
Fish resistance to microorganisms depends basically on the immune response. Although there are several studies on the diazinon mammalian immunotoxicity, in the case of fish there are only few. The aim of present study was to evaluate the effect of diazinon on immunological parameters (relative spleen weight, splenocytes count, lysozyme activity, respiratory burst and IgM concentration) in Nile tilapia. Diazinon at sublethal concentrations (0.39 and 0.78 mg/L) did not alter RSW, splenocytes count or lysozyme activity. However, at the highest concentration tested (1.96 mg/L) diazinon significantly increased respiratory burst and IgM concentration. In summary, diazinon (and perhaps other pesticides) could alter immunological response and induce oxidative stress.
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Affiliation(s)
- M I Girón-Pérez
- Universidad Autónoma de Nayarit, Secretaria de Investigación y Posgrado. Cd. de la cultura Amado Nervo, 63190,Tepic, Nayarit, México.
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21
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Frasco MF, Fournier D, Carvalho F, Guilhermino L. Does mercury interact with the inhibitory effect of dichlorvos on Palaemon serratus (Crustacea: Decapoda) cholinesterase? THE SCIENCE OF THE TOTAL ENVIRONMENT 2008; 404:88-93. [PMID: 18639316 DOI: 10.1016/j.scitotenv.2008.06.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2008] [Revised: 06/09/2008] [Accepted: 06/10/2008] [Indexed: 05/26/2023]
Abstract
Mercury is one of the most hazardous metals that may contaminate estuarine ecosystems and induce toxic effects on wildlife organisms. It has been suggested that impairment of cholinesterase (ChE) activity may be involved in the resulting mercury toxicity. Following Palaemon serratus exposure to mercury chloride (HgCl2), no effect on ChE activity was observed whatever the concentration used (to 37.5 microM) or the time of exposure (to 7 days). By contrast, following 24 h exposure to dichlorvos, an organophosphate insecticide with a well-characterised anti-ChE action, decrease of ChE activity was observed until 30 to 40% basal activity, which seems to be the minimum activity required for prawn survival. In addition, HgCl2 does not affect dichlorvos toxicity and treatments with a mixture of both compounds can be interpreted as the sum of the two independent toxicities. Therefore, mercury and insecticide toxicities are independent and ChE activity from P. serratus eyes seems to be a reliable and sensitive biomarker for organophosphate insecticides even when organisms are simultaneously exposed to mercury.
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Affiliation(s)
- Manuela F Frasco
- ICBAS, Instituto de Ciências Biomédicas de Abel Salazar, Departamento de Estudos de Populações, Laboratório de Ecotoxicologia, Universidade do Porto, Largo Prof. Abel Salazar, 2, 4099-003 Porto, Portugal.
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22
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Effet de l'hexachlorobenzène sur certains paramètres de la fonction de reproduction mâle chez Meriones unguiculatus. C R Biol 2008; 331:380-8. [DOI: 10.1016/j.crvi.2008.03.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2007] [Revised: 03/10/2008] [Accepted: 03/11/2008] [Indexed: 11/18/2022]
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23
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Fernandes C, Fontaínhas-Fernandes A, Cabral D, Salgado MA. Heavy metals in water, sediment and tissues of Liza saliens from Esmoriz-Paramos lagoon, Portugal. ENVIRONMENTAL MONITORING AND ASSESSMENT 2008; 136:267-75. [PMID: 17447151 DOI: 10.1007/s10661-007-9682-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2006] [Accepted: 02/28/2007] [Indexed: 05/15/2023]
Abstract
Esmoriz-Paramos lagoon is an ecosystem of great ecological importance that is located on the northwest coast of Portugal and has been degraded as a result of industrial and anthropogenic activities. Concentrations of heavy metals (Cr, Cu, Pb and Zn) were measured in water, sediment and in tissues (liver and muscle) of Liza saliens, which is the dominant fish from the lagoon. Comparisons between metal concentrations in water and sediments were made with those in tissues of fish caught at the lagoon. Metals in water were quantified predominantly bound to particulate and equalled or exceeded the limit of chronic reference values. Metal concentrations in sediments varied among sampled sites. The relative order of concentrations was "Zn > Cu approximately Pb > Cr" the same pattern observed for metals in water. Metals in fish tissues showed higher concentrations in liver (262 mg CuxKg(-1) and 89 mg ZnxKg(-1)) than in muscle (<3 mg CuxKg(-1) and 26 mg ZnxKg(-1)), while Pb and Cr were not detected. These results suggest that Cu and Zn are the metals of major concern in the lagoon. Mullet detritivorous feeding habits, bioaccumulation pattern and the high sediment metals concentrations relative to the water suggest that sediments can be the most important source of contamination in this ecosystem. The positive relationship found between Cu in liver and fish length demonstrates that time of exposure is a crucial factor in bioaccumulation. Condition indices (K and HSI) in mullets from the lagoon were higher compared to mullets from sea, suggesting abnormal condition in the lagoon population. We conclude that metals chronic exposure in the lagoon can impose considerable fish stress. The results also show that the lagoon is an area of environmental concern.
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Affiliation(s)
- C Fernandes
- ESA-Escola Superior Agrária, Instituto Politécnico de Bragança, CIMO-Centro de Investigação de Montanha, Campus de Santa Apolónia, Apartado 1038, 5301-854 Bragança, Portugal
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24
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Girón-Pérez MI, Santerre A, Gonzalez-Jaime F, Casas-Solis J, Hernández-Coronado M, Peregrina-Sandoval J, Takemura A, Zaitseva G. Immunotoxicity and hepatic function evaluation in Nile tilapia (Oreochromis niloticus) exposed to diazinon. FISH & SHELLFISH IMMUNOLOGY 2007; 23:760-9. [PMID: 17478099 DOI: 10.1016/j.fsi.2007.02.004] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2006] [Revised: 01/26/2007] [Accepted: 02/15/2007] [Indexed: 05/15/2023]
Abstract
The LC(50) of the organophosphorus pesticides (OPs) diazinon to Nile tilapia (Oreochromis niloticus) was determined, thereafter, hepatic activity, phagocytic index, percentages of active cells, relative spleen weight, total IgM concentration and lymphoproliferation rates were compared between diazinon exposed groups (LC(50) and (1/2)LC(50)) and non-exposed control group. Experimental data show that diazinon is highly toxic for juvenile Nile tilapia (LC(50)=7.830 ppm) and presents immunotoxic properties which affect both the innate and cellular adaptive immune responses of this fish, as revealed by the fact that splenocyte proliferation and phagocytic indices were significantly decreased after acute exposure to the pesticide. However, the hepatic biochemical parameters and the total circulating IgM concentrations were not affected in this experimental model.
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Affiliation(s)
- Manuel Iván Girón-Pérez
- University of Guadalajara, Cellular and Molecular Biology Department, Carretera a Nogales Km 15.5, Las Agujas, Zapopan, 45110, Jalisco, Mexico.
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25
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26
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Sweet LI, Passino-Reader DR, Meier PG, Omann GM. Effects of polychlorinated biphenyls, hexachlorocyclohexanes, and mercury on human neutrophil apoptosis, actin cytoskelton, and oxidative state. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2006; 22:179-188. [PMID: 21783707 DOI: 10.1016/j.etap.2006.03.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2005] [Accepted: 03/06/2006] [Indexed: 05/31/2023]
Abstract
Apoptosis, or programmed cell death, has been proposed as a biomarker for environmental contaminant effects. In this work, we test the hypothesis that in vitro assays of apoptosis are sensitive indicators of immunological effects of polychlorinated biphenyls, hexachlorocyclohexanes, and mercury on human neutrophils. Apoptosis, necrosis, and viability as well as the related indicators F-actin levels, and active thiol state were measured in purified human neutrophils after treatment with contaminants. Effective concentrations observed were 0.3μM (60μg/L) mercury, 750μg/L Aroclor 1254, and 50μM (14,500μg/L) hexachlorocylcohexanes. Concentrations of contaminants that induced apoptosis also decreased cellular F-actin levels. Active thiols were altered by mercury, but not organochlorines. Comparison of these data with levels of contaminants reported to be threats to human health indicate neutrophil apoptosis is a sensitive indicator of mercury toxicity.
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Affiliation(s)
- Leonard I Sweet
- Department of Environmental Health Science, School of Public Health, University of Michigan, Ann Arbor, MI 48109, United States
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27
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Iwanowicz LR, Lerner DT, Blazer VS, McCormick SD. Aqueous exposure to Aroclor 1254 modulates the mitogenic response of Atlantic salmon anterior kidney T-cells: indications of short- and long-term immunomodulation. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2005; 72:305-14. [PMID: 15848250 DOI: 10.1016/j.aquatox.2005.01.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2004] [Revised: 01/07/2005] [Accepted: 01/18/2005] [Indexed: 05/02/2023]
Abstract
Polychlorinated biphenyls (PCBs) exist as persistent organic pollutants in numerous river systems in the United States. Unfortunately, some of these rivers are sites of active Atlantic salmon restoration programs, and polychlorinated biphenyls have been implicated as ancillary factors contributing to failed salmon restoration. Here, we investigate the immediate and chronic effects of intermediate duration aqueous PCB exposure (1 or 10 microgL-1 Aroclor 1254) on the mitogen-stimulated lymphoproliferative response of Atlantic salmon anterior kidney leukocytes (AKLs). A short-term study was designed to examine immunomodulation in Atlantic salmon smolts immediately following 21 days of aqueous exposure, while a long-term study evaluated chronic impacts in the mitogen response in parr 15 months post-exposure as larvae. The proliferative response of AKLs to the mitogens concanavalin A (CON A), phytohemaglutinnin-P (PHA-P), pokeweed mitogen (PWM), and lipopolysaccharide were used as an indice of immunomodulation. The proliferative response to the T-cell mitogens CON A and PHA-P was significantly increased in the 10 microgL-1 group (n=10; P=0.043 and 0.002, respectively) immediately following exposure of smolts. Additionally, The PHA-P response was significantly increased in the 1 microgL-1 exposure group (n=10, P=0.036). In fish treated as larvae and tested 15 months later, the PHA-P sensitive populations exhibited elevated proliferation in the 1 and 10 microgL-1 groups (n=12, P<0.04) relative to the vehicle control while the PWM response was significantly increased (n=12, P=0.036) only in the 10 microgL-1 treated groups. These results demonstrate an immunomodulatory effect of PCBs on T-cell mitogen sensitive populations of lymphocytes in Atlantic salmon as well as long-term immunomodulation in PHA-P and PWM sensitive populations.
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Affiliation(s)
- Luke R Iwanowicz
- Department of Natural Resources Conservation, University of Massachusetts, Amherst, MA 01003, USA.
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28
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Sarmento A, Guilhermino L, Afonso A. Mercury chloride effects on the function and cellular integrity of sea bass (Dicentrarchus labrax) head kidney macrophages. FISH & SHELLFISH IMMUNOLOGY 2004; 17:489-98. [PMID: 15313514 DOI: 10.1016/j.fsi.2004.05.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2004] [Revised: 05/10/2004] [Accepted: 05/17/2004] [Indexed: 05/21/2023]
Abstract
The objective of this work was to study mercury chloride effects on the function and integrity of sea bass (Dicentrarchus labrax) head kidney macrophages (S-HKM), and to evaluate the response of HgCl2-exposed cells to macrophage activating factor(s) (MAF) produced by sea bass head kidney leukocytes. There was considerable variability in the effects of HgCl2 on the production of reactive oxygen species (ROS) by S-HKM. When incubated with HgCl2, cells from five out of nine fish tested showed a decrease in ROS production as compared to cells incubated with medium alone. In those cultures, MAF addition prevented the mercury chloride-induced decrease in ROS production. In other S-HKM cultures isolated from different fish, mercury chloride abrogated the up-regulating effect of MAF on the respiratory burst. MAF activation of the phagocytic activity of S-HKM was also impaired by HgCl2 addition. Mercury chloride induced apoptosis in S-HKM cultures and MAF addition prevented this effect.
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Affiliation(s)
- Amélia Sarmento
- Institute for Molecular and Cell Biology, University of Porto, Rua do Campo Alegre, 823, 4150-180 Porto, Portugal.
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29
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Teles M, Gravato C, Pacheco M, Santos MA. Juvenile sea bass biotransformation, genotoxic and endocrine responses to beta-naphthoflavone, 4-nonylphenol and 17 beta-estradiol individual and combined exposures. CHEMOSPHERE 2004; 57:147-158. [PMID: 15294438 DOI: 10.1016/j.chemosphere.2004.02.023] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2003] [Revised: 12/31/2003] [Accepted: 02/09/2004] [Indexed: 05/24/2023]
Abstract
Juvenile sea bass, Dicentrarchus labrax L., were exposed during 2, 4, 8, and 24 h to 0.9 microM beta-naphthoflavone (BNF), 131 nM 17 beta-estradiol (E(2)), 4.05 microM 4-nonylphenol (NP), as well as to BNF combined either to E(2) or NP (maintaining the previous concentrations). Liver cytochrome P450 content (P450), ethoxyresorufin-O-deethylase (EROD), and glutathione S-transferase (GST) activities were measured in order to evaluate biotransformation responses. Genotoxicity was assessed as erythrocytic nuclear abnormalities (ENA) frequency. The effects on endocrine function were evaluated as plasma cortisol and glucose. Cortisol was not affected by xeno/estrogens tested, either in single exposure or mixed with BNF. Nevertheless, the intermediary metabolism was affected since glucose concentration increased after 4 h exposure to E(2), and after all BNF+NP exposure lengths. Moreover, a synergism between BNF and NP was thoroughly demonstrated, whereas a sporadic antagonistic interaction was found at 4 h BNF + E(2) exposure. Liver EROD and GST activities were not significantly altered by single E(2) or NP exposure. However, both compounds were able to induce EROD activity in the presence of BNF. NP single exposure was able to significantly increase liver P450 content, while its mixture with BNF displayed an antagonistic interference. Considering the xeno/estrogens single exposures, only NP induced an ENA increase; however, both mixtures (BNF + E(2) and BNF + NP) displayed genotoxic effects. Fish responses to mixtures of xenobiotics are complex and the type of interaction (synergism/potentiation or antagonism) in a particular mixture can vary with the evaluated biological response.
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Affiliation(s)
- M Teles
- Department of Biology, Aveiro University, Campus de Santiago, 3810-193 Aveiro, Portugal
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30
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Teles M, Santos MA, Pacheco M. Responses of European eel (Anguilla anguilla L.) in two polluted environments: in situ experiments. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2004; 58:373-378. [PMID: 15223262 DOI: 10.1016/j.ecoenv.2004.01.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2003] [Revised: 10/02/2003] [Accepted: 01/28/2004] [Indexed: 05/24/2023]
Abstract
European eels (Anguilla anguilla L.) were caged for 8 and 48 h in two polluted areas to assess the contamination cleanup process in the Vouga River 2 years after the official closing of a bleached kraft pulp mill effluent (BKPME; experiment 1), and to monitor the effects induced by contaminated offward fishing harbor waters (experiment 2). Plasma cortisol, glucose, and lactate were evaluated as stress responses. In experiment 1, plasma cortisol, glucose, and lactate increased after 8 h of exposure in site 3, which is located farthest from the deactivated sewage outlet. However, A. anguilla seemed to adapt after 48 h of exposure in site 3, because all three parameters returned to control levels. Plasma glucose also significantly increased after 8 h of exposure at sites 1, 2, and 3, returning to control levels after 48 h. Plasma lactate levels increased after 8 h of exposure at site 3 and after 48 h of exposure at site 1. In experiment 2, A. anguilla exposed to contaminated harbor waters increased their plasma lactate after 8 and 48 h of exposure, whereas their cortisol and glucose plasma were elevated only after 48 h of exposure. The results demonstrate that even 2 years after the official closing of the BKPME sewage outlet, the river Vouga water remains contaminated by the sediment associated chemicals. Because the fishing harbor induced in A. anguilla the same type of stress responses, it is also an area of concern. The adopted stress parameters allied to a caging strategy are recommended for future environmental monitoring assessments.
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Affiliation(s)
- M Teles
- Animal Physiology/Ecotoxicology Sector, Biology Department, Aveiro University, 3810-193 Aveiro, Portugal
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