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Fernandes IF, Fujiwara GH, Moraes Utsunomiya HS, Souza IC, Monteiro DA, Monferrán MV, Wunderlin DA, Fernandes MN, Carvalho CDS. Oxidative stress and neurotoxicity induced by exposure to settleable atmospheric particulate matter in bullfrog tadpoles, Aquarana catesbeiana, (Shaw, 1802). CHEMOSPHERE 2024; 353:141576. [PMID: 38462180 DOI: 10.1016/j.chemosphere.2024.141576] [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: 09/22/2023] [Revised: 02/21/2024] [Accepted: 02/28/2024] [Indexed: 03/12/2024]
Abstract
Bullfrog tadpoles, Aquarana catesbeiana, were exposed to settleable particulate matter (SePM), (1 g L-1, 96 h) and their organs were collected for analysis of metal/metalloid, oxidative stress and neurotoxicity in liver, muscle, kidney and brain. The SePM water of the exposed groups contained 18 of the 28 metals/metalloids detected in ambient particulate matter (APM). Fe56 and Al were those that presented the highest concentrations, Cr, Mn, Pb and Cu increased from 10 to 20 times and Ti, V, Sr, Rb, Cd, Sn and Ni increased from 1 to 3 times compared to the control. Bioaccumulation of metals/metalloids in the exposure water varied significantly between organs, with the muscle and liver showing the highest concentrations of metals, followed by the brain. Lipoperoxidation and malondialdehyde increased only in muscle, while carbonyl proteins increased only in the liver and brain. Regarding nitric oxide synthase, there was an increase in the liver and brain in the group exposed to SePM. Catalase activity decreased in the liver and muscle, while the activity of glutathione peroxidase, increased in the liver and kidney and decreased in muscle. Glutathione S-transferase, which is mainly responsible for detoxification, increased in the liver and decreased in muscle and the kidney. Cholinesterase activity increased only in the muscle. The results indicate oxidative stress, due to oxidation catalyzed by metals, components of SePM. Thus, the results contribute to the understanding that SePM has a deleterious effect on the aquatic environment, negatively affecting bullfrog tadpoles, in different ways and levels in relation to the analyzed organs.
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Affiliation(s)
- Isabela Ferreira Fernandes
- Programa de Pós-Graduação em Biotecnologia e Monitoramento Ambiental, Universidade Federal de São Carlos, Campus Sorocaba, Rodovia João Leme Dos Santos, Km 110, SP-264, Sorocaba, SP CEP 18052-780, Brazil
| | - Gabriel Hiroshi Fujiwara
- Programa de Pós-Graduação em Biotecnologia e Monitoramento Ambiental, Universidade Federal de São Carlos, Campus Sorocaba, Rodovia João Leme Dos Santos, Km 110, SP-264, Sorocaba, SP CEP 18052-780, Brazil
| | - Heidi Samantha Moraes Utsunomiya
- Departamento de Biologia (DBio), Centro de Ciências Humanas e Biológicas (CCHB), Universidade Federal de São Carlos (UFSCar), 18052-780, São Carlos, São Paulo, Brazil
| | - Iara Costa Souza
- Departamento de Ciências Fisiológicas (DCF), Centro de Ciências Biológicas e da Saúde (CCBS), Universidade Federal de São Carlos (UFSCar), 13565-905, São Carlos, São Paulo, Brazil; Grupo de Mutagênese Ambiental, Departamento de Ciências Biológicas, Universidade Federal do Espírito Santo (DBV/UFES), Av. Fernando Ferrari, 514, 29075-910, Vitória, Espírito Santo, Brazil
| | - Diana Amaral Monteiro
- Departamento de Ciências Fisiológicas (DCF), Centro de Ciências Biológicas e da Saúde (CCBS), Universidade Federal de São Carlos (UFSCar), 13565-905, São Carlos, São Paulo, Brazil
| | - Magdalena Victoria Monferrán
- Departamento Bioquímica Clínica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, and CONICET, CIBICI, Ciudad Universitaria, Medina Allende esq. Haya de la Torre s/n, 5000, Córdoba, Argentina; Instituto de Ciencia y Tecnología de Alimentos Córdoba (ICYTAC), CONICET and Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria, 5000, Córdoba, Argentina
| | - Daniel Alberto Wunderlin
- Instituto de Ciencia y Tecnología de Alimentos Córdoba (ICYTAC), CONICET and Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria, 5000, Córdoba, Argentina
| | - Marisa Narciso Fernandes
- Departamento de Ciências Fisiológicas (DCF), Centro de Ciências Biológicas e da Saúde (CCBS), Universidade Federal de São Carlos (UFSCar), 13565-905, São Carlos, São Paulo, Brazil
| | - Cleoni Dos Santos Carvalho
- Programa de Pós-Graduação em Biotecnologia e Monitoramento Ambiental, Universidade Federal de São Carlos, Campus Sorocaba, Rodovia João Leme Dos Santos, Km 110, SP-264, Sorocaba, SP CEP 18052-780, Brazil; Departamento de Biologia (DBio), Centro de Ciências Humanas e Biológicas (CCHB), Universidade Federal de São Carlos (UFSCar), 18052-780, São Carlos, São Paulo, Brazil.
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Tsukada E, Rodrigues CC, Jacintho JC, Franco-Belussi L, Jones-Costa M, Abdalla FC, Rocha TL, Salla RF. The amphibian's spleen as a source of biomarkers for ecotoxicity assessment: Historical review and trends. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 901:165915. [PMID: 37532037 DOI: 10.1016/j.scitotenv.2023.165915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 07/27/2023] [Accepted: 07/28/2023] [Indexed: 08/04/2023]
Abstract
Amphibians are very sensitive to many environmental changes, so these animals are considered good bioindicator models for ecotoxicology. Given the importance of the amphibian spleen for hematopoietic and immune responses, this can be a key organ for the evaluation of biomarkers to monitor the health of individuals in nature or in captivity. In this systematic review, we searched databases and summarized the main findings concerning the amphibian spleen as a source of possible biomarkers applied in different scientific fields. The searches resulted in 83 articles published from 1923 to 2022, which applied the use of splenic samples to evaluate the effects of distinct stressors on amphibians. Articles were distributed in more than twenty countries, with USA, Europe, and Brazil, standing out among them. Publications focused mainly on anatomical and histomorphological characterization of the spleen, its physiology, and development. Recently, the use of splenic biomarkers in pathology and ecotoxicology began to grow but many gaps still need to be addressed in herpetological research. About 85 % of the splenic biomarkers showed responses to various stressors, which indicates that the spleen can provide numerous biomarkers to be used in many study fields. The limited amount of information on morphological description and splenic anatomy in amphibians may be a contributing factor to the underestimated use of splenic biomarkers in herpetological research around the world. We hope that this unprecedented review can instigate researchers to refine herpetological experimentation, using the spleen as a versatile and alternative source for biomarkers in ecotoxicology.
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Affiliation(s)
- Elisabete Tsukada
- Post-graduation Program of Biotechnology and Environmental Monitoring, Federal University of São Carlos (UFSCar), campus Sorocaba, Sorocaba, São Paulo, Brazil
| | - Cândido C Rodrigues
- Laboratory of Environmental Biotechnology and Ecotoxicology, Institute of Tropical Pathology and Public Health, Federal University of Goiás, Goiânia, Brazil
| | - Jaqueline C Jacintho
- Laboratory of Environmental Biotechnology and Ecotoxicology, Institute of Tropical Pathology and Public Health, Federal University of Goiás, Goiânia, Brazil
| | - Lilian Franco-Belussi
- Departament of Biological Sciences, São Paulo State University, campus São José do Rio Preto, São Paulo, Brazil; Laboratory of Experimental Pathology (LAPex), Federal University of Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul, Brazil
| | - Monica Jones-Costa
- Department of Biology, Federal University of São Carlos (UFSCar), campus Sorocaba, Sorocaba, São Paulo, Brazil
| | - Fábio Camargo Abdalla
- Post-graduation Program of Biotechnology and Environmental Monitoring, Federal University of São Carlos (UFSCar), campus Sorocaba, Sorocaba, São Paulo, Brazil; Laboratory of Structural and Functional Biology, Federal University of São Carlos (UFSCar), campus Sorocaba, Sorocaba, São Paulo, Brazil
| | - Thiago Lopes Rocha
- Laboratory of Environmental Biotechnology and Ecotoxicology, Institute of Tropical Pathology and Public Health, Federal University of Goiás, Goiânia, Brazil
| | - Raquel F Salla
- Post-graduation Program of Biotechnology and Environmental Monitoring, Federal University of São Carlos (UFSCar), campus Sorocaba, Sorocaba, São Paulo, Brazil; Laboratory of Environmental Biotechnology and Ecotoxicology, Institute of Tropical Pathology and Public Health, Federal University of Goiás, Goiânia, Brazil.
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Oliveira CBDS, Barros EDS, de Oliveira SR, Barbosa Júnior F, Vieira Júnior GM, Lopes Júnior CA. Preliminary ionome of the parotoid gland secretion from Rhinella jimi toad. Toxicon 2023; 225:107059. [PMID: 36822515 DOI: 10.1016/j.toxicon.2023.107059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 02/13/2023] [Accepted: 02/16/2023] [Indexed: 02/23/2023]
Abstract
The cururu toad (Rhinella jimi) is an anuran belonging to the fauna of the Brazilian northeast region, which releases a secretion with toxins from your parotoid glands. Although it has some information about secondary metabolites and proteins, the elemental composition of the released secretion is unknown. Therefore, this is the first report on the ionome of the secretion of the parotoid glands from R. jimi, investigating the influences of abiotic factors such as biome, seasonality, and gender. ICP-MS was used for measurements combined with principal component analysis (PCA). A screening of the secretion sample detected 68 elements which the total concentration of 18 elements was determined. PCA revealed that biome and seasonality factors have a greater influence on the ionomic profile of parotoid secretion. The presence of toxic metals in the secretion samples indicates that the R. jimi toad can be considered a potential bioindicator. These findings may contribute to understanding the metabolism, lifestyle, and interaction of the R. jimi toad with environmental factors as well as open new perspectives to investigate the relationships of the ionome with other biomolecules, for example, metalloproteins and their physiological functions.
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Affiliation(s)
| | - Elcio Daniel Sousa Barros
- Department of Chemistry, Federal University of Piauí - UFPI, CEP: 64049-550, Teresina, Piauí, Brazil
| | - Silvana Ruella de Oliveira
- Faculdade de Ciências Farmacêuticas de Ribeirão Preto, University of São Paulo - USP, Avenida do Café s/n, Monte Alegre, CEP: 14040-903, Ribeirão Preto, São Paulo, Brazil
| | - Fernando Barbosa Júnior
- Faculdade de Ciências Farmacêuticas de Ribeirão Preto, University of São Paulo - USP, Avenida do Café s/n, Monte Alegre, CEP: 14040-903, Ribeirão Preto, São Paulo, Brazil
| | | | - Cícero Alves Lopes Júnior
- Department of Chemistry, Federal University of Piauí - UFPI, CEP: 64049-550, Teresina, Piauí, Brazil.
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Hu J, Liu J, Lv X, Yu L, Li J, Lan S, Yang Y. In situ assessment of genetic and epigenetic alterations in frog Rana plancyi and Rana limnocharis inhabiting aquatic ecosystems associated with Pb/Zn/Cu mining. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 779:146139. [PMID: 33743459 DOI: 10.1016/j.scitotenv.2021.146139] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 02/05/2021] [Accepted: 02/22/2021] [Indexed: 06/12/2023]
Abstract
Exploration for metallic minerals leads to severe trace metal contamination, thus the ecological risk to aquatic organisms near mining regions has attracted widespread attention. In this study, two species of frog Rana plancyi and Rana limnocharis were collected as amphibian models to explore the genetic and epigenetic effects of trace metals in Dexing mining region. The results indicated that the surface water was heavily contaminated with trace metals and the two species of frog have high bioconcentration of trace metals in the liver. Trace metals disrupted the redox balance and increased reactive oxygen species levels. DNA strand breaks and increased 8-hydroxy-2'-deoxyguanosine levels were observed in the genomic DNA of frogs. Global DNA hypomethylation was found in the liver, which indicated adverse epigenetic effects on frogs. Overall, the study demonstrated that there was significant genotoxicity and epigenotoxicity of aquatic organisms living around the mining region. DNA damage and global DNA methylation are promising biomarkers for assessment of the ecological risk of trace metal pollution in aquatic amphibian frogs.
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Affiliation(s)
- Junjie Hu
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, Guangdong, PR China
| | - Jinhuan Liu
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, Guangdong, PR China
| | - Xiaomei Lv
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, Guangdong, PR China
| | - Lili Yu
- Shenzhen People's Hospital, The 2nd Clinical Medical College of Jinan University, Shenzhen 518020, Guangdong, PR China
| | - Jinyun Li
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, Guangdong, PR China
| | - Shanhong Lan
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, Guangdong, PR China
| | - Yan Yang
- Synergy Innovation Institute of GDUT, Shantou 515041, Guangdong, PR China; Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, Guangdong, PR China.
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Kaczmarski M, Kolenda K, Rozenblut-Kościsty B, Sośnicka W. Phalangeal bone anomalies in the European common toad Bufo bufo from polluted environments. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:21940-21946. [PMID: 27535156 PMCID: PMC5099355 DOI: 10.1007/s11356-016-7297-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Accepted: 07/20/2016] [Indexed: 06/06/2023]
Abstract
Every spring, many of amphibians are killed by motor vehicles on roads. These road-killed animals can be used as valuable material for non-invasive studies showing the effect of environmental pollution on amphibian populations. The aims of our research were to check whether the phalanges of road-killed toads may be useful as material for histological analysis, and whether various degrees of human impact influence the level in bone abnormalities in the common toad. We also examined whether the sex and age structure of toads can differ significantly depending in the different sites. We chose three toad breeding sites where road-killed individuals had been observed: near the centre of a city, the outskirts of a city, and a rural site. We collected dead individuals during spring migration in 2013. The sex of each individual was determined and the toes were used to determine age using the skeletochronology method. While performing age estimates, we looked for abnormalities in relation to normal bone tissue structure. In urban site, females dominate males (sex ratio 2.6:1), but in populations from rural and semi-urban sites, sex ratio was reverse (1:2.2 and 1:1.4, respectively). However, we did not find any significant differences between age structure of all populations (average age of each population: approximately 4 years). We observed abnormalities in more than 80 % of all toads from the city, compared to approximately 20 % from the rural and semi-urban sites. In particular, we found hypertrophic bone cells, misaligned intercellular substance, and irregular outer edges of bones. We suggest that these malformations are caused by different pollution, e.g. with heavy metals.
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Affiliation(s)
- Mikołaj Kaczmarski
- Institute of Zoology, Poznan University of Life Sciences, Wojska Polskiego 71 C, 60-625, Poznań, Poland
| | - Krzysztof Kolenda
- Department of Vertebrate Biology and Conservation, University of Wroclaw, Sienkiewicza 21, 50-335, Wrocław, Poland.
| | - Beata Rozenblut-Kościsty
- Department of Vertebrate Biology and Conservation, University of Wroclaw, Sienkiewicza 21, 50-335, Wrocław, Poland
| | - Wioletta Sośnicka
- Department of Vertebrate Biology and Conservation, University of Wroclaw, Sienkiewicza 21, 50-335, Wrocław, Poland
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Lanctôt C, Bennett W, Wilson S, Fabbro L, Leusch FDL, Melvin SD. Behaviour, development and metal accumulation in striped marsh frog tadpoles (Limnodynastes peronii) exposed to coal mine wastewater. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2016; 173:218-227. [PMID: 26854186 DOI: 10.1016/j.aquatox.2016.01.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2015] [Revised: 10/08/2015] [Accepted: 01/25/2016] [Indexed: 06/05/2023]
Abstract
Coal mining generates large quantities of complex effluent, and this often contains high levels of dissolved solids, suspended solids, metals, hydrocarbons, salts and other compounds. Substantial volumes of mine wastewater are periodically discharged into the environment, through both planned and accidental releases, and this raises concerns about the potential for adverse impacts on aquatic wildlife. There have been few attempts to explore sub-lethal effects of coal mine wastewater on amphibians compared to other organisms, and this is particularly true for Australian species. To address existing knowledge gaps, we exposed striped marsh frog (Limnodynastes peronii) tadpoles to 25, 50 and 100% coal mine wastewater collected from two holding dams (CMW1 and CMW2) located at an open cut mine in Central Queensland, Australia. The exposure lasted for four weeks, after which survival, growth and development, swimming behaviour, and concentrations of metals and metalloids in tail and liver tissues were assessed. Physico-chemical parameters varied considerably between sites, with higher turbidity, nutrients, total and dissolved organic carbon, alkalinity and arsenic (As) concentrations at CMW1, and higher conductivity, salinity, dissolved solids, hardness and sulfate levels at CMW2. There was no mortality in controls and less than 5% mortality in CMW1 treatments, whereas survival was significantly decreased in tadpoles exposed to CMW2 with 40 and 55% mortality in the 50 and 100% treatments, respectively. Development was significantly delayed in 100% CMW1 wastewater, but tadpole size (growth) was not influenced by the exposure. Hepatosomatic indices were significantly increased in tadpoles exposed to 25 and 50% CMW1 but not the 100% treatment group. Exposed tadpoles (predominantly those exposed to CMW1) exhibited increased activity after very short-term exposure (24h), but this did not persist as animals approached metamorphic climax. At the end of the experiment, tadpoles exposed to both wastewaters had elevated levels of selenium (Se), cobalt (Co) and As in tail and liver tissue compared to controls. Manganese (Mn) levels were also elevated in livers and tails of CMW2 exposed tadpoles. Hepatic tissue accumulated 8-9 times higher concentrations of Co, Mn and Se compared to tail tissue, irrespective of treatments. Future research is warranted to explore possible relationships between metal bioaccumulation, morpho-physiological effects during development, and subsequent higher-level outcomes related to individual performance and population fitness.
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Affiliation(s)
- C Lanctôt
- Central Queensland University, School of Medical and Applied Sciences, Gladstone, QLD 4680, Australia; Smart Water Research Centre and Australian Rivers Institute, School of Environment, Griffith University, Southport, QLD 4215, Australia.
| | - W Bennett
- Environmental Futures Research Institute and Griffith School of Environment, Griffith University, Southport, QLD 4222, Australia.
| | - S Wilson
- Central Queensland University, School of Medical and Applied Sciences, Gladstone, QLD 4680, Australia.
| | - L Fabbro
- Central Queensland University, School of Medical and Applied Sciences, Rockhampton, QLD 4702, Australia.
| | - F D L Leusch
- Smart Water Research Centre and Australian Rivers Institute, School of Environment, Griffith University, Southport, QLD 4215, Australia.
| | - S D Melvin
- Central Queensland University, School of Medical and Applied Sciences, Gladstone, QLD 4680, Australia; Smart Water Research Centre and Australian Rivers Institute, School of Environment, Griffith University, Southport, QLD 4215, Australia.
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Chen X, Wang J, Zhu H, Li Y, Ding J, Peng Y. Effects of Transgenic cry1Ca Rice on the Development of Xenopus laevis. PLoS One 2015; 10:e0145412. [PMID: 26695426 PMCID: PMC4690606 DOI: 10.1371/journal.pone.0145412] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2015] [Accepted: 12/03/2015] [Indexed: 11/29/2022] Open
Abstract
In fields of genetically modified, insect-resistant rice expressing Bacillus thuringiensis (Bt) proteins, frogs are exposed to Bt Cry proteins by consuming both target and non-target insects, and through their highly permeable skin. In the present study, we assessed the potential risk posed by transgenic cry1Ca rice (T1C-19) on the development of a frog species by adding purified Cry1Ca protein or T1C-19 rice straw into the rearing water of Xenopus laevis tadpoles, and by feeding X. laevis froglets diets containing rice grains of T1C-19 or its non-transformed counterpart MH63. Our results showed that there were no significant differences among groups receiving 100 μg L–1 or 10 μg L–1 Cry1Ca and the blank control in terms of time to completed metamorphosis, survival rate, body weight, body length, organ weight and liver enzyme activity after being exposed to the Cry1Ca (P > 0.05). Although some detection indices in the rice straw groups were significantly different from those of the blank control group (P < 0.05), there was no significant difference between the T1C-19 and MH63 rice straw groups. Moreover, there were no significant differences in the mortality rate, body weight, daily weight gain, liver and fat body weight of the froglets between the T1C-19 and MH63 dietary groups after 90 days, and there were no abnormal pathological changes in the stomach, intestines, livers, spleens and gonads. Thus, we conclude that the planting of transgenic cry1Ca rice will not adversely affect frog development.
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Affiliation(s)
- Xiuping Chen
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
- * E-mail: (XC); (YP)
| | - Jiamei Wang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China
- Jiangsu Agri-animal Husbandry Vocational College, Taizhou 225300, China
| | - Haojun Zhu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China
| | - Yunhe Li
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Jiatong Ding
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China
| | - Yufa Peng
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
- * E-mail: (XC); (YP)
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Simoncelli F, Belia S, Di Rosa I, Paracucchi R, Rossi R, La Porta G, Lucentini L, Fagotti A. Short-term cadmium exposure induces stress responses in frog (Pelophylax bergeri) skin organ culture. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2015; 122:221-229. [PMID: 26277541 DOI: 10.1016/j.ecoenv.2015.08.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2015] [Revised: 07/31/2015] [Accepted: 08/03/2015] [Indexed: 06/04/2023]
Abstract
There have been a few studies on the negative effects of pollutants on amphibian skin, the first structural barrier that interacts with the environment and its potential contaminants. In this study an ex vivo skin organ culture from the amphibian Pelophylax bergeri was used to evaluate cell stress responses induced by short-term exposure to cadmium (Cd), a toxic heavy metal known to be an environmental hazard to both humans and wildlife. Histopathological studies were carried out on skin explants using light microscopy and changes in the expression of stress proteins, such as Metallothionein (MT) and Heat shock proteins (HSPs), were investigated by Real-time RT-PCR. Results revealed that amphibian skin reacts to Cd-induced stress by activating biological responses such as morphological alterations and dose- and time-dependent induction of Mt and Hsp70 mRNA expression, suggesting their potential role as biomarkers of exposure to Cd. This work provides a basis for a better understanding of the tissue-specific responses of amphibian skin as a target organ to Cd exposure and its in vitro use for testing potentially harmful substances present in the environment.
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Affiliation(s)
- Francesca Simoncelli
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy.
| | - Silvia Belia
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy.
| | - Ines Di Rosa
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy.
| | - Romina Paracucchi
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy.
| | - Roberta Rossi
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy.
| | - Gianandrea La Porta
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy.
| | - Livia Lucentini
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy.
| | - Anna Fagotti
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy.
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Falfushynska H, Gnatyshyna L, Fedoruk O, Mitina N, Zaichenko A, Stoliar O, Stoika R. Hepatic metallothioneins in molecular responses to cobalt, zinc, and their nanoscale polymeric composites in frog Rana ridibunda. Comp Biochem Physiol C Toxicol Pharmacol 2015; 172-173:45-56. [PMID: 25988936 DOI: 10.1016/j.cbpc.2015.04.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2015] [Revised: 04/29/2015] [Accepted: 04/29/2015] [Indexed: 12/20/2022]
Abstract
Despite numerous studies suggesting a dramatic decline of amphibians, the biochemical mechanisms of adaptation in these animals to polluted environment are poorly studied. The aim of this study was to elucidate the ability to release cobalt (Co) and zinc (Zn) from their nanoscale complexes (NCs) derived from the polymeric substance of N-vinylpyrrolidone (PS) in the liver of amphibian (Rana ridibunda). Frog males were subjected to 14days exposure to waterborne Co(2+) (50μg/L), Zn(2+) (100μg/L), as well as corresponding concentrations of Co-NC, Zn-NC or PS. Main attention was paid to MT's interrelations with indices of stress and toxicity. Only Co(2+) and Zn(2+) caused elevation of the correspondent metal in MTs. Co(2+) caused down-regulation of cathepsin D activity, while Zn(2+), Zn-NC and the PS up-regulated this activity. Zn(2+) provoked 1.6 times increase of metal-bounded form of the MT (MT-Me), while all other exposures caused the elevation of the ratio of MT total protein concentration (MT-SH) and concentrations of the MT-Me and/or immunoreactive (MTi) form (up to ~10 times) accompanied by a decrease in the levels of oxyradicals. The increased DNA fragmentation and down-regulation of caspase-3 activity in relation to the redox state of glutathione and/or lactate/pyruvate were shown at all exposures. These data indicate the vulnerability of the redox state of cellular thiols and inability to release Co and Zn from NCs in frog's liver.
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Affiliation(s)
- Halina Falfushynska
- Ternopil National Pedagogical University (TNPU), Ternopil, Ukraine; I.Ya. Horbachevsky Ternopil State Medical University, Ternopil, Ukraine
| | - Lesya Gnatyshyna
- Ternopil National Pedagogical University (TNPU), Ternopil, Ukraine
| | - Olga Fedoruk
- Ternopil National Pedagogical University (TNPU), Ternopil, Ukraine
| | - Natalia Mitina
- Lviv National Polytechnic University (LNPU), Lviv, Ukraine
| | | | - Oksana Stoliar
- Ternopil National Pedagogical University (TNPU), Ternopil, Ukraine
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10
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Buenfil-Rojas AM, Álvarez-Legorreta T, Cedeño-Vázquez JR. Metals and metallothioneins in Morelet's crocodile (Crocodylus moreletii) from a transboundary river between Mexico and Belize. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2015; 68:265-273. [PMID: 25355289 DOI: 10.1007/s00244-014-0088-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2014] [Accepted: 10/03/2014] [Indexed: 06/04/2023]
Abstract
The aim of this study was to determine concentrations of heavy metals (cadmium [Cd] and mercury [Hg]) and metallothioneins (MTs) in blood plasma and caudal scutes of Morelet's crocodile (Crocodylus moreletii) from Rio Hondo, a river and natural border between Mexico and Belize. Three transects of the river (approximately 20 km each) were surveyed in September 2012 and April 2013, and samples were collected from 24 crocodiles from these areas. In blood plasma, Cd (7.6 ± 9.6 ng/ml) was detected in 69 % of samples (n = 9); Hg (12.2 ± 9.2 ng/ml) was detected in 46 % of samples (n = 6); and MTs (10,900 ± 9,400 ng/ml) were detected in 92 % of samples (n = 12). In caudal scutes samples, Cd (31.7 ± 39.4 ng/g) was detected in 84 % of samples (n = 12) and Hg (374.1 ± 429.4 ng/g) in 83 % of samples (n = 20). No MTs were detected in caudal scutes. Hg concentrations in scutes from the Rio Hondo were 2- to 5-fold greater than those previously reported in scutes from other localities in northern Belize. In blood plasma, a significant positive relationship between Hg and body size was observed. Mean concentrations of Cd and MTs in size classes suggest that MTs may be related to Cd exposure. This is the first report of MT presence in crocodile blood.
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Affiliation(s)
- A M Buenfil-Rojas
- Environmental Biotechnology, Department of Sustainability Sciences, El Colegio de la Frontera Sur, Av. Centenario Km 5.5, 77014, Chetumal, Quintana Roo, Mexico
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11
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Šlejkovec Z, Stajnko A, Falnoga I, Lipej L, Mazej D, Horvat M, Faganeli J. Bioaccumulation of arsenic species in rays from the northern Adriatic Sea. Int J Mol Sci 2014; 15:22073-91. [PMID: 25470025 PMCID: PMC4284695 DOI: 10.3390/ijms151222073] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Revised: 11/19/2014] [Accepted: 11/21/2014] [Indexed: 12/03/2022] Open
Abstract
The difference in arsenic concentration and speciation between benthic (Pteromylaeus bovinus, Myliobatis aquila) and pelagic rays (Pteroplatytrygon violacea) from the northern Adriatic Sea (Gulf of Trieste) in relation to their size (age) was investigated. High arsenic concentrations were found in both groups with tendency of more efficient arsenic accumulation in benthic species, particularly in muscle (32.4 to 362 µg·g−1 of total arsenic). This was attributed to species differences in arsenic access, uptake and retention. In liver most arsenic was present in a form of arsenobetaine, dimethylarsinic acid and arsenoipids, whereas in muscle mainly arsenobetaine was found. The good correlations between total arsenic/arsenobetaine and size reflect the importance of accumulation of arsenobetaine with age. Arsenobetaine is an analogue of glycine betaine, a known osmoregulator in marine animals and both are very abundant in mussels, representing an important source of food for benthic species P. bovinus and M. aquila.
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Affiliation(s)
- Zdenka Šlejkovec
- Department of Environmental Sciences, Jožef Stefan Institute, Jamova 39, Ljubljana 1000, Slovenia.
| | - Anja Stajnko
- Department of Environmental Sciences, Jožef Stefan Institute, Jamova 39, Ljubljana 1000, Slovenia.
| | - Ingrid Falnoga
- Department of Environmental Sciences, Jožef Stefan Institute, Jamova 39, Ljubljana 1000, Slovenia.
| | - Lovrenc Lipej
- Marine Biology Station, National Institute of Biology, Fornače 41, Piran 6330, Slovenia.
| | - Darja Mazej
- Department of Environmental Sciences, Jožef Stefan Institute, Jamova 39, Ljubljana 1000, Slovenia.
| | - Milena Horvat
- Department of Environmental Sciences, Jožef Stefan Institute, Jamova 39, Ljubljana 1000, Slovenia.
| | - Jadran Faganeli
- Marine Biology Station, National Institute of Biology, Fornače 41, Piran 6330, Slovenia.
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