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Lazarus M, Orct T, Sergiel A, Vranković L, Marijić VF, Rašić D, Reljić S, Aladrović J, Zwijacz-Kozica T, Zięba F, Jurasović J, Erk M, Maślak R, Selva N, Huber Đ. Metal(loid) exposure assessment and biomarker responses in captive and free-ranging European brown bear (Ursus arctos). ENVIRONMENTAL RESEARCH 2020; 183:109166. [PMID: 32004830 DOI: 10.1016/j.envres.2020.109166] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Revised: 11/29/2019] [Accepted: 01/22/2020] [Indexed: 06/10/2023]
Abstract
We investigated the level of five non-essential metal(loid)s (As, Cd, Hg, Tl, Pb) and nine essential metals (Mg, Ca, Mn, Fe, Co, Cu, Zn, Se, Mo) in hair and blood components of captive and free-ranging European brown bear populations in Croatia and Poland. Metal(loid) associations with biomarkers of oxidative stress (superoxide dismutase, SOD; glutathione-peroxidase, GSH-Px; malondialdehyde, MDA) and metal exposure (metallothionein, MT) were estimated in this top predatory mammal. Lead was the most abundant non-essential metal(loid) in both blood and hair, with 4 of 35 individuals having blood levels over 100 μg/L. A positive association was found between Pb level and SOD activity in blood. Free-ranging bears had higher blood SOD activity, Mn, Zn and Cd levels, hair Co, Cd, Tl and Pb compared to captive individuals, while the opposite was true for Mg and hair Ca thereby reflecting habitat and diet differences. With increasing age, animals showed lower levels of SOD activity and certain essential metals. Females had higher SOD activity and blood levels of some essential metals than males. Hair showed a higher Fe and Co level when sampled during the growth phase and was not predictive of non-essential metal(loid) blood levels. The established metal(loid) baseline values will enable future risk assessment in both captive and wild European brown bear populations.
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Affiliation(s)
- Maja Lazarus
- Institute for Medical Research and Occupational Health, Zagreb, Croatia.
| | - Tatjana Orct
- Institute for Medical Research and Occupational Health, Zagreb, Croatia.
| | - Agnieszka Sergiel
- Institute of Nature Conservation, Polish Academy of Sciences, Kraków, Poland.
| | - Lana Vranković
- Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia.
| | | | - Dubravka Rašić
- Institute for Medical Research and Occupational Health, Zagreb, Croatia.
| | - Slaven Reljić
- Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia.
| | - Jasna Aladrović
- Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia.
| | | | | | - Jasna Jurasović
- Institute for Medical Research and Occupational Health, Zagreb, Croatia.
| | | | - Robert Maślak
- Institute of Environmental Biology, University of Wrocław, Wrocław, Poland.
| | - Nuria Selva
- Institute of Nature Conservation, Polish Academy of Sciences, Kraków, Poland.
| | - Đuro Huber
- Institute of Nature Conservation, Polish Academy of Sciences, Kraków, Poland.
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Zuo J, Fan W, Wang X, Ren J, Zhang Y, Wang X, Zhang Y, Yu T, Li X. Trophic transfer of Cu, Zn, Cd, and Cr, and biomarker response for food webs in Taihu Lake, China. RSC Adv 2018; 8:3410-3417. [PMID: 35542949 PMCID: PMC9077756 DOI: 10.1039/c7ra11677b] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Accepted: 01/11/2018] [Indexed: 11/21/2022] Open
Abstract
Water, sediments, and aquatic organism samples were collected from Taihu Lake in China. Four types of typical heavy metal (Cu, Zn, Cd, and Cr) were analyzed to evaluate their concentrations and trophic transfer in food webs. The stable nitrogen isotope δ15N was used to investigate the trophic interactions. The concentrations of Cd and Zn in the sediments of Taihu Lake exceeded Level I of the China National Quality Standards for Soil. Zn accumulation was identified to increase with the trophic level. The bioconcentration of the four heavy metals in aquatic organisms was evident, with the invertebrates showing the highest bioconcentration factor in the food webs. Several biomarkers were investigated, including metallothionein (MT), malondialdehyde, and Na+/K+-adenosine triphosphatase activity. A positive correlation relationship was found between the MT content and heavy metal accumulation in organism tissues. Samples were analyzed from Taihu Lake, the bioconcentration of metals was evident and MTs were used to monitor the heavy metal pollution.![]()
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Affiliation(s)
- Jinxing Zuo
- School of Space and Environment
- Beihang University
- Beijing 100191
- PR China
| | - Wenhong Fan
- School of Space and Environment
- Beihang University
- Beijing 100191
- PR China
| | - Xiaolong Wang
- School of Space and Environment
- Beihang University
- Beijing 100191
- PR China
| | - Jinqian Ren
- School of Space and Environment
- Beihang University
- Beijing 100191
- PR China
| | - YiLin Zhang
- School of Space and Environment
- Beihang University
- Beijing 100191
- PR China
| | - Xiangrui Wang
- School of Space and Environment
- Beihang University
- Beijing 100191
- PR China
| | - Yuan Zhang
- Chinese Research Academy of Environmental Sciences
- Beijing 100012
- PR China
| | - Tao Yu
- Chinese Research Academy of Environmental Sciences
- Beijing 100012
- PR China
| | - Xiaomin Li
- School of Space and Environment
- Beihang University
- Beijing 100191
- PR China
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Metallothionein from Wild Populations of the African Catfish Clarias gariepinus: From Sequence, Protein Expression and Metal Binding Properties to Transcriptional Biomarker of Metal Pollution. Int J Mol Sci 2017; 18:ijms18071548. [PMID: 28718783 PMCID: PMC5536036 DOI: 10.3390/ijms18071548] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Revised: 07/03/2017] [Accepted: 07/13/2017] [Indexed: 11/25/2022] Open
Abstract
Anthropogenic pollution with heavy metals is an on-going concern throughout the world, and methods to monitor release and impact of heavy metals are of high importance. With a view to probe its suitability as molecular biomarker of metal pollution, this study has determined a coding sequence for metallothionein of the African sharptooth catfish Clarias gariepinus. The gene product was recombinantly expressed in Escherichia coli in presence of Zn(II), Cd(II), or Cu, and characterised by Electrospray Ionisation Mass Spectrometry and elemental analysis. C. gariepinus MT displays typical features of fish MTs, including 20 conserved cysteines, and seven bound divalent cations (Zn(II) or Cd(II)) when saturated. Livers from wild C. gariepinus fish collected in all three seasons from four different sites on the Kafue River of Zambia were analysed for their metal contents and for MT expression levels by quantitative PCR. Significant correlations were found between Zn and Cu levels and MT expression in livers, with MT expression clearly highest at the most polluted site, Chililabombwe, which is situated in the Copperbelt region. Based on our findings, hepatic expression of MT from C. gariepinus may be further developed as a major molecular biomarker of heavy metal pollution resulting from mining activities in this region.
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M'kandawire E, Choongo K, Yabe J, Mwase M, Saasa N, Nakayama SMM, Bortey-Sam N, Blindauer CA. Sediment Metal Contamination in the Kafue River of Zambia and Ecological Risk Assessment. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2017; 99:108-116. [PMID: 28434067 DOI: 10.1007/s00128-017-2089-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Accepted: 04/11/2017] [Indexed: 06/07/2023]
Abstract
Zambia's Kafue River receives wastes from various sources, resulting in metal pollution. This study determined the degree of contamination of 13 metals (Al, Cr, Mn, Fe, Co, Ni, Cu, Zn, As, Se, Cd, Hg and Pb) in Kafue River sediment and the associated ecological risks at six sites in three different seasons. The level of contamination for most metals showed significant site and seasonal differences. The contamination factor and pollution load index indicated that concentrations of most metals particularly copper (Cu), cobalt (Co), manganese (Mn) and arsenic (As) were very high at sites within the Copperbelt mining area. The geoaccumulation index showed an absence of anthropogenic enrichment with Cd and Hg at all the study sites and extreme anthropogenic enrichment with Cu at sites in the Copperbelt mining area. Potential ecological risk showed that Cu and As were likely to cause adverse biological effects to aquatic organisms in the Copperbelt mining region of the Kafue River.
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Affiliation(s)
- Ethel M'kandawire
- School of Veterinary Medicine, University of Zambia, P.O. Box 32379, Lusaka, Zambia.
- Department of Chemistry, University of Warwick, Gibbet Hill road, Coventry, CV4 7AL, UK.
| | - Kennedy Choongo
- School of Veterinary Medicine, University of Zambia, P.O. Box 32379, Lusaka, Zambia
| | - John Yabe
- School of Veterinary Medicine, University of Zambia, P.O. Box 32379, Lusaka, Zambia
| | - Maxwell Mwase
- School of Veterinary Medicine, University of Zambia, P.O. Box 32379, Lusaka, Zambia
| | - Ngonda Saasa
- School of Veterinary Medicine, University of Zambia, P.O. Box 32379, Lusaka, Zambia
| | - Shouta M M Nakayama
- Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Kita 18, Nishi 9, Kita-ku, Sapporo, 060-0818, Japan
| | - Nesta Bortey-Sam
- Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Kita 18, Nishi 9, Kita-ku, Sapporo, 060-0818, Japan
| | - Claudia A Blindauer
- Department of Chemistry, University of Warwick, Gibbet Hill road, Coventry, CV4 7AL, UK
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Durkalec M, Kolenda R, Owczarek T, Szkoda J, Nawrocka A, Grzegrzółka J, Dzięgiel P, Socha P, Kołacz R, Schierack P, Żmudzki J, Posyniak A. Expression of metallothionein in the liver and kidneys of the red deer (Cervus elaphus L.) from an industrial metal smelting area of Poland. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2017; 137:121-129. [PMID: 27918943 DOI: 10.1016/j.ecoenv.2016.11.018] [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: 06/15/2016] [Revised: 11/22/2016] [Accepted: 11/25/2016] [Indexed: 06/06/2023]
Abstract
The metallothionein 1 (MT1) coding sequence of red deer was identified and compared to orthologous sequences from other mammals. Over 90% identity was observed between red deer MT1 amino acid sequence and MT1 sequences of other ruminants. Liver and kidney samples of red deer were collected from the industrial zinc smelting site of Miasteczko Slaskie and from the Masuria Lake District serving as a pollution-free control site. The concentrations of cadmium (Cd), lead (Pb), copper (Cu) and zinc (Zn) were analyzed by the atomic absorption spectrometry technique (AAS). The levels of Cd in the liver of red deer from the metal smelting region was about 8 times higher than for the reference control site. Next, the expression of MT1 mRNA in the liver of red deer was quantified by the reverse transcription-quantitative polymerase chain reaction (RT-qPCR) and the expression of MT1/2 protein in the liver and kidneys was analyzed by immunohistochemistry. Positive correlations were found between expression levels for MT1 mRNA and the concentrations of Cu and Zn in liver of red deer, and with the age of animals. Immunohistochemical staining demonstrated the nuclear and cytoplasmatic expression in both liver and kidney tissues, but with no obvious relationship shown for the expression of MT1/2 protein and tissue metal levels. Our results showed that the analysis of MT expression levels in the red deer could not be used independently as a biomarker for identifying exposure to Cd, but could be co-analyzed with tissue metal levels to give better prognosis for environmental exposure to metals.
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Affiliation(s)
- Maciej Durkalec
- Department of Toxicology and Pharmacology, National Veterinary Research Institute, Aleja Partyzantów 57, 24-100 Puławy, Poland.
| | - Rafał Kolenda
- Institute of Biotechnology, Brandenburg University of Technology Cottbus-Senftenberg, Großenhainer Str. 57, 01968 Senftenberg, Germany; Department of Biochemistry, Pharmacology and Toxicology, Wroclaw University of Environmental and Life Sciences, ul. C. K. Norwida 31, 51-375 Wroclaw, Poland.
| | - Tomasz Owczarek
- Department of Biochemistry, Pharmacology and Toxicology, Wroclaw University of Environmental and Life Sciences, ul. C. K. Norwida 31, 51-375 Wroclaw, Poland
| | - Józef Szkoda
- Department of Toxicology and Pharmacology, National Veterinary Research Institute, Aleja Partyzantów 57, 24-100 Puławy, Poland
| | - Agnieszka Nawrocka
- Department of Toxicology and Pharmacology, National Veterinary Research Institute, Aleja Partyzantów 57, 24-100 Puławy, Poland
| | - Jędrzej Grzegrzółka
- Department of Histology and Embryology, Wroclaw Medical University, ul. Chałubińskiego 6a, 50-368 Wrocław, Poland
| | - Piotr Dzięgiel
- Department of Histology and Embryology, Wroclaw Medical University, ul. Chałubińskiego 6a, 50-368 Wrocław, Poland; Department of Physiotherapy, Wroclaw University of Physical Education, al. I. J. Paderewskiego 35, 51-612 Wroclaw, Poland
| | - Piotr Socha
- Department of Animal Reproduction with Clinic, University of Warmia and Mazury in Olsztyn, ul. M. Oczapowskiego 14, 10-719 Olsztyn, Poland
| | - Roman Kołacz
- Department of Environment, Hygiene and Animal Welfare, Wrocław University of Environmental and Life Sciences, ul. Chełmonskiego 38C, 51-630 Wroclaw, Poland
| | - Peter Schierack
- Institute of Biotechnology, Brandenburg University of Technology Cottbus-Senftenberg, Großenhainer Str. 57, 01968 Senftenberg, Germany
| | - Jan Żmudzki
- Department of Toxicology and Pharmacology, National Veterinary Research Institute, Aleja Partyzantów 57, 24-100 Puławy, Poland
| | - Andrzej Posyniak
- Department of Toxicology and Pharmacology, National Veterinary Research Institute, Aleja Partyzantów 57, 24-100 Puławy, Poland
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El-Sayed YS, El-Gazzar AM, El-Nahas AF, Ashry KM. Vitamin C modulates cadmium-induced hepatic antioxidants' gene transcripts and toxicopathic changes in Nile tilapia, Oreochromis niloticus. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:1664-1670. [PMID: 26385855 DOI: 10.1007/s11356-015-5412-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2015] [Accepted: 09/11/2015] [Indexed: 06/05/2023]
Abstract
Cadmium (Cd) is one of the naturally occurring heavy metals having adverse effects, while vitamin C (L-ascorbic acid) is an essential micronutrient for fish, which can attenuate tissue damage owing to its chain-breaking antioxidant and free radical scavenger properties. The adult Nile tilapia fish were exposed to Cd at 5 mg/l with and without vitamin C (500 mg/kg diet) for 45 days in addition to negative and positive controls fed with the basal diet and basal diet supplemented with vitamin C, respectively. Hepatic relative mRNA expression of genes involved in antioxidant function, metallothionein (MT), glutathione S-transferase (GST-α1), and glutathione peroxidase (GPx1), was assessed using real-time reverse transcription polymerase chain reaction (RT-PCR). Hepatic architecture was also histopathologically examined. Tilapia exposed to Cd exhibited upregulated antioxidants' gene transcript levels, GST-⍺1, GPx1, and MT by 6.10-, 4.60-, and 4.29-fold, respectively. Histopathologically, Cd caused severe hepatic changes of multifocal hepatocellular and pancreatic acinar necrosis, and lytic hepatocytes infiltrated with eosinophilic granular cells. Co-treatment of Cd-exposed fish with vitamin C overexpressed antioxidant enzyme-related genes, GST-⍺1 (16.26-fold) and GPx1 (18.68-fold), and maintained the expression of MT gene close to control (1.07-fold), averting the toxicopathic lesions induced by Cd. These results suggested that vitamin C has the potential to protect Nile tilapia from Cd hepatotoxicity via sustaining hepatic antioxidants' genes transcripts and normal histoarchitecture.
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Affiliation(s)
- Yasser S El-Sayed
- Department of Veterinary Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Damanhour University, Damanhour, 22511, Egypt.
| | - Ahmed M El-Gazzar
- Department of Veterinary Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Alexandria University, Edfina, Egypt
| | - Abeer F El-Nahas
- Department of Animal Husbandry and Animal Wealth Development, Faculty of Veterinary Medicine, Alexandria University, Edfina, Egypt
| | - Khaled M Ashry
- Department of Veterinary Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Alexandria University, Edfina, Egypt
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