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Humphries M, Benitez-Nelson N, Combrink X. Trace Metal Accumulation in Eggs of Wild Nile Crocodiles (Crocodylus niloticus) from Lake St Lucia, South Africa: Implications for Biomonitoring in a Global Biodiversity Hotspot. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2022; 83:214-225. [PMID: 36171509 DOI: 10.1007/s00244-022-00960-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 09/17/2022] [Indexed: 06/16/2023]
Abstract
Nile crocodiles (Crocodylus niloticus) at Lake St Lucia, South Africa, have some of the highest blood lead (Pb) concentrations ever recorded in wildlife globally. Although exposure to Pb is known to pose major risks to wildlife reproductive success, potential impacts on crocodile reproduction at Lake St Lucia have yet to be examined. In this study, we investigated the accumulation of Pb and other trace metals (Al, V, Cr, Co, Cu, Ni, Zn and Cd) in eggs (n = 20) collected from five wild crocodile nests at Lake St Lucia. All metals analysed in this study were detected in egg contents, although concentrations varied considerably among nests and within clutches. Lead was detected in the contents of all eggs, but only at relatively low concentrations (43 ± 26 ng g-1 dry weight). Although sampling limitations commonly associated with wild population surveys prevent a complete assessment of exposure variability, our findings suggest maternal transfer may not be a significant depuration pathway for Pb and females possibly clear Pb through other mechanisms (e.g. sequestration into claws, bone and osteoderms). Metal concentrations in eggshells and shell membranes were poorly correlated with concentrations measured in egg content and thus do not provide viable non-lethal indicators for monitoring metal exposure in Nile crocodiles. Intra-clutch variability accounted for a considerable proportion of the total variance in egg content metal concentrations, suggesting the "one egg" sampling strategy often applied in reptile studies may not be an effective biomonitoring tool for wild crocodilian populations. Although maternally derived Pb does not appear to present widespread toxicological concern at Lake St Lucia, adverse effects of Pb exposure on other reproductive functions (e.g. spermatogenesis) cannot be discounted and warrant further investigation.
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Affiliation(s)
- Marc Humphries
- School of Chemistry, University of the Witwatersrand, Johannesburg, South Africa.
| | - Noah Benitez-Nelson
- School of Chemistry, University of the Witwatersrand, Johannesburg, South Africa
| | - Xander Combrink
- Department of Nature Conservation, Tshwane University of Technology, Pretoria, South Africa
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Frossard A, Coppo GC, Lourenço AT, Heringer OA, Chippari-Gomes AR. Metal bioaccumulation and its genotoxic effects on eggs and hatchlings of giant Amazon river turtle (Podocnemis expansa). ECOTOXICOLOGY (LONDON, ENGLAND) 2021; 30:643-657. [PMID: 33754232 DOI: 10.1007/s10646-021-02384-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 02/26/2021] [Indexed: 06/12/2023]
Abstract
The aim of this study was to assess whether possible metal contamination in the sediment of the nests of giant Amazon river turtle, Podocnemis expansa, could contaminate eggs and hatchlings, triggering genotoxic damage. Therefore, sediments of P. expansa nests from two sites in the Brazilian Amazon were evaluated, with the first being collected at Araguaia River and the second at Crixás-Açu River. Newly hatched offspring, eggs, and sediments were collected from the beaches of these two rivers and the quantification of metals (Al, Cd, Co, Cr, Cu, Fe, Mn, Pb, and Zn) was carried out by atomic absorption spectroscopy. All targeted metals were found in both sediment and P. expansa biological samples collected on the beaches presenting higher concentrations in the sediment of Crixás-Açu River. Metals found in the eggshells before nesting and in the egg contents were maternally transferred. Moreover, augmented concentration of metals led by metal transfer from the nests sediments were detected in the eggshells after nesting (ENH) and in the newly hatched offspring (H). Probably this metal relocation to the newly hatchlings augmented the frequency of micronuclei in their blood, presenting 15.25‰ in hatchling found in Crixás-Açu River beaches and 10‰ in newly hatched animals from Araguaia River beaches. These results indicate the occurrence of maternal transfer of metals (essential or not) to the eggs in testudines as well as a transference from the sediments to the nesting eggs, triggering genotoxic effects on the hatchlings.
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Affiliation(s)
- Alexandra Frossard
- Laboratory of Applied Ichthyology, Vila Velha University, Av. Comissário José Dantas de Melo, 21, Boa Vista, 29102-770, Vila Velha, ES, Brazil.
| | - Gabriel Carvalho Coppo
- Laboratory of Applied Ichthyology, Vila Velha University, Av. Comissário José Dantas de Melo, 21, Boa Vista, 29102-770, Vila Velha, ES, Brazil
| | - Amanda Toledo Lourenço
- Laboratory of Health and Wildlife, Vila Velha University, Av. Comissário José Dantas de Melo, 21, Boa Vista, 29102-770, Vila Velha, ES, Brazil
| | - Otávio Arruda Heringer
- Department of Research and Development -Tommasi Ambiental, Av. Arara Azul, 187, Novo Horizonte, Serra, ES, Brazil
| | - Adriana Regina Chippari-Gomes
- Laboratory of Applied Ichthyology, Vila Velha University, Av. Comissário José Dantas de Melo, 21, Boa Vista, 29102-770, Vila Velha, ES, Brazil
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Boyles AL, Beverly BE, Fenton SE, Jackson CL, Jukic AMZ, Sutherland VL, Baird DD, Collman GW, Dixon D, Ferguson KK, Hall JE, Martin EM, Schug TT, White AJ, Chandler KJ. Environmental Factors Involved in Maternal Morbidity and Mortality. J Womens Health (Larchmt) 2021; 30:245-252. [PMID: 33211615 PMCID: PMC7891208 DOI: 10.1089/jwh.2020.8855] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Nongenetic, environmental factors contribute to maternal morbidity and mortality through chemical exposures via air, water, soil, food, and consumer products. Pregnancy represents a particularly sensitive window of susceptibility during which physiological changes to every major organ system increase sensitivity to chemicals that can impact a woman's long-term health. Nonchemical stressors, such as low socioeconomic status, may exacerbate the effects of chemical exposures on maternal health. Racial/ethnic minorities are exposed disproportionately to both chemicals and nonchemical stressors, which likely contribute to the observed health disparities for maternal morbidities and mortality. Epidemiological studies linking exposures to adverse maternal health outcomes underscore the importance of environmental health impacts, and mechanistic studies in model systems reveal how chemicals perturb biological pathways and processes. Environmental stressors are associated with a variety of immediate maternal health impacts, including hypertensive disorders of pregnancy, fibroids, and infertility, as well as long-term maternal health impacts, such as higher risk of breast cancer and metabolic disorders. Identifying and reducing a pregnant woman's environmental exposures is not only beneficial to her offspring but also important to preserve her short- and long-term health.
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Affiliation(s)
- Abee L. Boyles
- Division of Extramural Research and Training, National Institute of Environmental Health Sciences, National Institutes of Health, U.S. Department of Health and Human Services, Durham, North Carolina, USA
| | - Brandiese E. Beverly
- National Toxicology Program, National Institute of Environmental Health Sciences, National Institutes of Health, U.S. Department of Health and Human Services, Durham, North Carolina, USA
| | - Suzanne E. Fenton
- National Toxicology Program, National Institute of Environmental Health Sciences, National Institutes of Health, U.S. Department of Health and Human Services, Durham, North Carolina, USA
| | - Chandra L. Jackson
- Epidemiology Branch, National Institute of Environmental Health Sciences, National Institutes of Health, U.S. Department of Health and Human Services, Durham, North Carolina, USA
- Intramural Program, National Institute on Minority Health and Health Disparities, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, Maryland, USA
| | - Anne Marie Z. Jukic
- Epidemiology Branch, National Institute of Environmental Health Sciences, National Institutes of Health, U.S. Department of Health and Human Services, Durham, North Carolina, USA
| | - Vicki L. Sutherland
- National Toxicology Program, National Institute of Environmental Health Sciences, National Institutes of Health, U.S. Department of Health and Human Services, Durham, North Carolina, USA
| | - Donna D. Baird
- Epidemiology Branch, National Institute of Environmental Health Sciences, National Institutes of Health, U.S. Department of Health and Human Services, Durham, North Carolina, USA
| | - Gwen W. Collman
- Division of Extramural Research and Training, National Institute of Environmental Health Sciences, National Institutes of Health, U.S. Department of Health and Human Services, Durham, North Carolina, USA
| | - Darlene Dixon
- National Toxicology Program, National Institute of Environmental Health Sciences, National Institutes of Health, U.S. Department of Health and Human Services, Durham, North Carolina, USA
| | - Kelly K. Ferguson
- Epidemiology Branch, National Institute of Environmental Health Sciences, National Institutes of Health, U.S. Department of Health and Human Services, Durham, North Carolina, USA
| | - Janet E. Hall
- Clinical Research Branch, National Institute of Environmental Health Sciences, National Institutes of Health, U.S. Department of Health and Human Services, Durham, North Carolina, USA
| | - Elizabeth M. Martin
- Epigenetics and Stem Cell Biology Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, U.S. Department of Health and Human Services, Durham, North Carolina, USA
- Postdoctoral Research Associate Training Program, National Institute of General Medical Sciences, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, Maryland, USA
| | - Thaddeus T. Schug
- Division of Extramural Research and Training, National Institute of Environmental Health Sciences, National Institutes of Health, U.S. Department of Health and Human Services, Durham, North Carolina, USA
| | - Alexandra J. White
- Epidemiology Branch, National Institute of Environmental Health Sciences, National Institutes of Health, U.S. Department of Health and Human Services, Durham, North Carolina, USA
| | - Kelly J. Chandler
- Office of Policy, Planning, and Evaluation, National Institute of Environmental Health Sciences, National Institutes of Health, U.S. Department of Health and Human Services, Durham, North Carolina, USA
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Ekram B, Abd El-Hady BM, El-Kady AM, Fouad MT, Sadek ZI, Amr SM, Gabr H, Waly AI, Guirguis OW. Enhanced mesenchymal stem cells growth on antibacterial microgrooved electrospun zinc chloride/polycaprolactone conduits for peripheral nerve regeneration. J BIOACT COMPAT POL 2021. [DOI: 10.1177/0883911520988305] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
In this study, we have investigated the effect of adding zinc chloride (ZnCl2) on polycaprolactone (PCL) before and after electrospinning. The rheological properties and conductivity of ZnCl2/PCL solutions were measured prior to the electrospinning process. The resultant electrospun mats were characterized by SEM, contact angle, FTIR, XRD, mechanical properties, as well as its antibacterial and stem cell proliferation assessment were tested. It was found that the fibers became finer by increasing the zinc salt content. Moreover, stability increased slightly up to 5% Zn-PCL and also the hydrophilicity has been enhanced by 52%. By adding ZnCl2, the degradation rate and mechanical properties were significantly increased. Also, the resultant mats have shown antibacterial properties against S. aureus than E. coli. From the stem cells proliferation study, it can be observed that by increasing ZnCl2, the stem cells proliferation was significantly increased. Grooved multichannel nerve conduits were successfully fabricated by rolling the electrospun mats produced on corn husks which has shown better cell alignment and attachment. Hence, adding zinc chloride is a facile biocompatible enhancement to polycaprolactone nanofibers to be used in nerve regeneration.
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Affiliation(s)
- Basma Ekram
- Polymers and Pigments Department, National Research Centre, Dokki, Cairo, Egypt
| | | | - Abeer M El-Kady
- Glass Research Department, National Research Centre, Dokki, Cairo, Egypt
| | - Mohamed T Fouad
- Dairy Science Department, National Research Centre, Dokki, Cairo, Egypt
| | - Zeinab I Sadek
- Dairy Science Department, National Research Centre, Dokki, Cairo, Egypt
| | - Sherif M Amr
- Orthopaedics and Traumatology Department, Faculty of Medicine, Cairo University, Manial, Cairo, Egypt
| | - Hala Gabr
- Clinical Pathology Department, Faculty of Medicine, Cairo University, Manial, Cairo, Egypt
| | - Ahmed I Waly
- Textile Department, National Research Centre, Dokki, Cairo, Egypt
| | - Osiris W Guirguis
- Biophysics Department, Faculty of Science, Cairo University, Giza, Cairo, Egypt
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Frossard A, Vieira LV, Carneiro MTWD, Gomes LC, Chippari-Gomes AR. Accumulation of trace metals in eggs and hatchlings of Chelonia mydas. J Trace Elem Med Biol 2020; 62:126654. [PMID: 33164783 DOI: 10.1016/j.jtemb.2020.126654] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 08/26/2020] [Accepted: 09/22/2020] [Indexed: 12/18/2022]
Abstract
BACKGROUND The objective of this study was to verify the accumulation of trace metals in eggs and hatchlings of Chelonia mydas, evaluating if metal accumulation is originated from maternal transfer and/or from the incubation environment. Other assessments were also performed, as metal distribution in different tissues (blood, kidney, liver, muscle, and turtle shells) of newly hatched turtles, and genotoxic analysis, to verify possible damages caused by the presence of metals. METHODS The assessments were carried out by quantifying Cd, Ni, Pb, Mn and Fe in egg sample collected during laying time (eggshells (ELT) and egg content (EC)), eggshells from newly hatched turtles (ENH), hatchlings tissues (H - blood, kidney, liver, muscle, and shell)) (n = 18 for each biological sample - 3 of each nest) and nest sediments (n = 6, one of each nest). Comparative analysis were made between ELT and ENH, as well as between egg content (EC) and the sum of tissue samples from hatchlings, using Mann-Whitney hypothesis test (p < 0,05). The amount of metals in different hatchling was quantified and followed by the Dunn post-test. A principal component analysis (PCA) was also employed. RESULTS Metals studied were found in all investigated samples. The concentration of a great amount of investigated metals was significantly higher (P=<0.001) in eggshells from ENH than in ELT. An increase in Cd (2.16-fold), Pb (3.47-fold), Fe (6.83-fold) and Mn (195.57-fold) concentration was noticed in ENH. We also observed an increase in Fe (1.59-fold), Mn (1.74-fold) and Ni (1.59-fold) concentration in hatchling, when compared with EC, due to transfer from nest sediments. In relation to the hatchling's tissues, blood was shown to accumulate higher concentrations of Ni and Pb, while shells accumulated more Cd and Fe, and Mn is more associated with liver and kidney. Fe was the highest accumulated metal in both tissues, and muscles presented discrete concentrations of Ni, Mn, and Pb. A mean concentration of 1.25‰ MN was obtained in C. mydas hatchlings, indicating that the accumulation of metals in hatchlings didn't cause toxicology effects. CONCLUSION Hatchlings accumulate metals through the maternal and sediment transfer, although the levels of metal accumulation were not enough to cause genotoxic damage.
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Affiliation(s)
- Alexandra Frossard
- Vila Velha University - UVV, Laboratory of Applied Ichthyology (LAB PEIXE), Comissário José Dantas de Melo, 21, Boa Vista, 29102-770, Vila Velha, ES, Brazil.
| | - Luiza Valli Vieira
- Federal University of Espírito Santo - UFES, Department of Chemistry, Fernando Ferrari, 514, Goiabeiras, 29075-910, Vitória, ES, Brazil
| | | | - Levy Carvalho Gomes
- Vila Velha University - UVV, Laboratory of Applied Ichthyology (LAB PEIXE), Comissário José Dantas de Melo, 21, Boa Vista, 29102-770, Vila Velha, ES, Brazil
| | - Adriana Regina Chippari-Gomes
- Vila Velha University - UVV, Laboratory of Applied Ichthyology (LAB PEIXE), Comissário José Dantas de Melo, 21, Boa Vista, 29102-770, Vila Velha, ES, Brazil
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Souza NLN, Carneiro MTWD, Pimentel EF, Frossard A, Freire JB, Endringer DC, Ferreira Júnior PD. Trace elements influence the hatching success and emergence of Caretta caretta and Chelonia mydas. J Trace Elem Med Biol 2018; 50:117-122. [PMID: 30262268 DOI: 10.1016/j.jtemb.2018.06.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 06/06/2018] [Accepted: 06/13/2018] [Indexed: 11/17/2022]
Abstract
Trace elements from industrial, domestic and agricultural activities can be transferred into marine environments, affecting the survival of sea species. Due to their global distribution, sea turtles are recognized as indicators of ocean pollution. The aim of this work was to quantify Ba, Cd, Cr, Cu, Fe, Mn, Pb, Sr and Zn using inductively coupled plasma optical emission spectrometry (ICP-OES) in the eggs and offspring of Caretta caretta and Chelonia mydas from two important nesting beaches, Guanabara Beach, Anchieta, and Trindade/Martim Vaz Island, Espírito Santo, Brazil. C. mydas pups and eggs collected on Trindade/Martim Vaz Island presented significant differences in Ba, Cr, Cu, Mn and Sr (p < 0.001). Higher concentrations of Ba, Pb, and Sr were detected in eggs of this species in comparison to those of C. caretta on Guanabara Beach, Anchieta. Ba and Cd presented higher concentrations in pups than in eggs of C. caretta, which could indicate nesting pollution. Positive correlations between trace element concentrations and hatching success in C. caretta nests from Guanabara Beach, Anchieta, could be identified for Cu and Zn (r² = 0.86, F2.7 = 21, p < 0.001). Emergence success was influenced by Cu and Cd (r² = 0.84, F2.7 = 18.9, p = 0.002). In addition, Ba and Cd also influenced the emergence sucess (r² = 0.56, F2, 10 = 6.29, p = 0.017). The hatching success of C. mydas was influenced by the concentration of Cu (r² = 0.53, F2.14 = 7.82, p = 0.005). Further studies including the analyzed areas and migratory routes should be performed to promote conservation management at these beaches.
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Affiliation(s)
- Namany Lourpen Nascimento Souza
- Ecology of Ecosystem Graduate Program, Universidade Vila Velha, Rua José Dantas de Melo 21, Boa Vista, Vila Velha, ES, 29.102-920, Brazil
| | | | - Elisangela Flávia Pimentel
- Pharmaceutical Science Graduate Program, Universidade Vila Velha, Av. Comissário José Dantas de Melo, n°21, 29102-920 - Boa Vista, Vila Velha, ES, Brazil
| | - Alexandra Frossard
- Ecology of Ecosystem Graduate Program, Universidade Vila Velha, Rua José Dantas de Melo 21, Boa Vista, Vila Velha, ES, 29.102-920, Brazil
| | - Jordana Borini Freire
- Ecology of Ecosystem Graduate Program, Universidade Vila Velha, Rua José Dantas de Melo 21, Boa Vista, Vila Velha, ES, 29.102-920, Brazil
| | - Denise Coutinho Endringer
- Pharmaceutical Science Graduate Program, Universidade Vila Velha, Av. Comissário José Dantas de Melo, n°21, 29102-920 - Boa Vista, Vila Velha, ES, Brazil.
| | - Paulo Dias Ferreira Júnior
- Ecology of Ecosystem Graduate Program, Universidade Vila Velha, Rua José Dantas de Melo 21, Boa Vista, Vila Velha, ES, 29.102-920, Brazil
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Nasiry Zarrin Ghabaee D, Talebpour Amiri F, Esmaeelnejad Moghaddam A, Khalatbary AR, Zargari M. Administration of zinc against arsenic-induced nephrotoxicity during gestation and lactation in rat model. J Nephropathol 2016; 6:74-80. [PMID: 28491857 PMCID: PMC5418074 DOI: 10.15171/jnp.2017.13] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2016] [Accepted: 11/20/2016] [Indexed: 01/29/2023] Open
Abstract
Background Free radicals production by toxicity of arsenic (Ar) is most important in the nephrotoxicity. There is accumulating evidence that zinc (Zn), has anti-oxidant properties. Objectives The aim of present study was to evaluate protective and ameliorative effects of Zn against Ar-induced nephrotoxicity in rat pups during gestation and lactation. Materials and Methods Twenty-four adult pregnant wistar rats were randomly divided into four groups (n = 6). Group one was given vehicle only. Group two received Zn (ZnSO4) at 20 mg/kg/d. Group three received Ar at 5 mg/kg/d as sodium meta-arsenite. Group four received Ar + Zn at the same dose that mentioned in groups of two and three. At the end of the study, 24 hours after the last treatment, samples were killed with overdose of sodium pentobarbital and kidneys were harvested for measuring malondialdehyde (MDA), glutathione (GSH) and histopathological assessment. Results The MDA level in kidney was increased in the Ar group, which was decreased after Zn administration in the Ar + Zn group. The GSH level in kidney was decreased in the Ar group, which were increased after Zn administration in the Ar + Zn group. Also, the histopathological changes which were detected in the Ar group attenuated after Zn consumption. Conclusions Our findings suggested that administration of Zn during gestation and lactation could have protective and prevent effect in Ar-induced oxidative stress in kidney tissue.
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Affiliation(s)
| | - Fereshteh Talebpour Amiri
- Department of Anatomy, Molecular and Cell Biology Research Center, Mazandaran University of Medical Sciences, Sari, Iran
| | - Amir Esmaeelnejad Moghaddam
- Department of Anatomy, Molecular and Cell Biology Research Center, Mazandaran University of Medical Sciences, Sari, Iran
| | - Ali Reza Khalatbary
- Department of Anatomy, Molecular and Cell Biology Research Center, Mazandaran University of Medical Sciences, Sari, Iran
| | - Mehryar Zargari
- Department of Clinical Biochemistry, Molecular and Cell Biology Research Center, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Ira
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Nishikawa M, Mori H, Hara M. Reduced zinc cytotoxicity following differentiation of neural stem/progenitor cells into neurons and glial cells is associated with upregulation of metallothioneins. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2015; 39:1170-1176. [PMID: 25935539 DOI: 10.1016/j.etap.2015.04.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Accepted: 04/10/2015] [Indexed: 06/04/2023]
Abstract
We investigated zinc cytotoxicity in mouse neural stem/progenitor cells (NSPCs) and their differentiated progeny (neuronal/glial cells) in correlation with expression of metallothionein (MT) gene. Differentiated cells were less sensitive than NSPCs to ZnCl2 (IC50: 128μM vs. 76μM). Differentiation of immature NSPCs to the differentiated cells led to an increase in expression of MT family genes (Mt1, Mt2, Mt3, and Mt4). Zinc exposure induced a dose-dependent increase in expression level of Mt1 and that of Mt2 in both NSPCs and the differentiated cells. Our results showed that the reduced cytotoxicity of zinc associated with differentiation from NSPCs into their progeny was related to the upregulation of MTs.
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Affiliation(s)
- Mayu Nishikawa
- Department of Biological Science, Graduate School of Science, Osaka Prefecture University, 1-2 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8570, Japan
| | - Hideki Mori
- Department of Biological Science, Graduate School of Science, Osaka Prefecture University, 1-2 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8570, Japan
| | - Masayuki Hara
- Department of Biological Science, Graduate School of Science, Osaka Prefecture University, 1-2 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8570, Japan.
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Pineda J, Herrera A, Antonio MT. Comparison between hepatic and renal effects in rats treated with arsenic and/or antioxidants during gestation and lactation. J Trace Elem Med Biol 2013; 27:236-41. [PMID: 23339766 DOI: 10.1016/j.jtemb.2012.12.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2012] [Revised: 09/27/2012] [Accepted: 12/21/2012] [Indexed: 11/22/2022]
Abstract
The aim of this study was to determine whether biochemical changes occurred in the liver and kidney of arsenic (As) exposed pups during gestation and lactation, and investigate the potential beneficial role of antioxidants against arsenic exposure damage. Pregnant wistar rats received the following treatments as drinking water: (1) distilled water; (2) arsenic (50 mg/L); (3) antioxidants: zinc (20 mg/L)+vitamin C (2 g/L)+vitamin E (500 mg/L); (4) arsenic (50 mg/L)+antioxidants. As- intoxicated pups showed significant decreases in liver cholesterol and triglyceride concentration, whereas Aspartate aminotransferase (AST) and alkaline phosphatase (ALP) activities were increased. Treatment with antioxidants returns these values to control ones. TBARS production in both organs and liver glutathione peroxidase (GPx) activity also increased whereas catalase (CAT) activity in both organs decreased in arsenic-exposed pups; the antioxidant administration only recover TBARS concentration to control values. Our findings suggest that administration of antioxidants during gestation and lactation could prevent some of the negative effects of arsenic.
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Affiliation(s)
- Javier Pineda
- Department of Physiology (Animal Physiology II), Faculty of Biology, Complutense University, Madrid 28040, Spain
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10
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Herrera A, Pineda J, Antonio MT. Toxic effects of perinatal arsenic exposure on the brain of developing rats and the beneficial role of natural antioxidants. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2013; 36:73-79. [PMID: 23619517 DOI: 10.1016/j.etap.2013.03.018] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2012] [Revised: 03/20/2013] [Accepted: 03/22/2013] [Indexed: 06/02/2023]
Abstract
The aim of this study was to determine what changes in biochemical parameters and in the antioxidant capacity occur in the brain of arsenic-exposed rats (50mg As/L in drinking water) and investigate the protective effect of antioxidants as Zn, vitamin C and vitamin E during pregnancy and lactation. After arsenic-exposure, alkaline phosphatase (ALP) activity was enhanced in arsenic group, returning to normal levels in the arsenic+antioxidants one. A significant increase of acetylcholinesterase (AChE) activity was noted in both arsenic groups. Metalloide exposure caused a significant increase in lipid peroxidation (TBARS), whereas antioxidant administration reversed it. Catalase (CAT) activity in arsenic groups was increased, but no changes were found in the other groups. No significant effect of arsenic in superoxide dismutase (SOD) and glutathione peroxidase (GPx) activities and reduced glutathione concentration (GSH) was noted. This study provides evidence of the deleterious effect of arsenic exposure during gestation and lactation and the beneficial role of antioxidants.
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Affiliation(s)
- Amparo Herrera
- Department of Physiology (Animal Physiology II), Faculty of Biology, Complutense University, Madrid 28040, Spain
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Garoui EM, Troudi A, Fetoui H, Soudani N, Boudawara T, Zeghal N. Propolis attenuates cobalt induced-nephrotoxicity in adult rats and their progeny. ACTA ACUST UNITED AC 2012; 64:837-46. [DOI: 10.1016/j.etp.2011.03.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2010] [Revised: 12/09/2010] [Accepted: 03/10/2011] [Indexed: 10/18/2022]
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12
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Antonio Garcia MT, Herrera Dueñas A, Pineda Pampliega J. Hematological effects of arsenic in rats after subchronical exposure during pregnancy and lactation: the protective role of antioxidants. ACTA ACUST UNITED AC 2012; 65:609-14. [PMID: 22727912 DOI: 10.1016/j.etp.2012.06.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2011] [Revised: 03/26/2012] [Accepted: 06/04/2012] [Indexed: 12/14/2022]
Abstract
Free radicals production is involved in the toxicity of arsenic. The aim of this study was to determine whether biochemical changes occurred in the blood of arsenic-exposed pups during gestation and lactation, and additionally to investigate the potential beneficial role of the administration of certain antioxidants against arsenic exposure damage. Pregnant wistar rats received the following treatments as drinking water: (1) distilled water; (2) arsenic (50 mg/L); (3) antioxidants: zinc (20 mg/L)+vitamin C (2 g/L)+vitamin E (500 mg/L); (4) arsenic (50 mg/L)+antioxidants: zinc (20 mg/L)+vitamin C (2 g/L)+vitamin E (500 mg/L). We found a normocytic and normochromic anemia as well as a significant increase in hemolysis, TBARS production and catalase activity in the blood of arsenic intoxicated pups. Moreover, this metalloid produced a significant increase of serum cholesterol, triglicerids and urea levels whereas the proteins diminished. These effects were palliated in some extent by the coadministration of vitamins and zinc. Our findings suggest that administration of antioxidants during gestation and lactation could prevent some of the negative effects of arsenic.
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Vyatchanina ES. Preconceptional alcoholic intoxication alters the distribution of metals in matured rat brain of offspring. J Trace Elem Med Biol 2011; 25 Suppl 1:S59-62. [PMID: 21177086 DOI: 10.1016/j.jtemb.2010.10.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2010] [Accepted: 10/26/2010] [Indexed: 11/25/2022]
Abstract
It is known that alcohol possesses embryotoxic, teratogenic, neurotoxic and other effects. Alteration of the trace element and mineral metabolism can be one of the triggering mechanisms of metabolic changes during an alcoholic intoxication. The aim of the recent study was to compare the profiles of elements in brain structures of matured offspring which were born by female rats exposed and non-exposed to alcohol before conception. A decreasing tendency in the levels of all detected macro and trace elements in four brain structures was observed. The most prominent changes were found in the brain cortex. Experimental data show that short term consumption of alcohol by female rats before pregnancy alters the distribution of macro and trace elements in the offspring's brain structures.
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Affiliation(s)
- Elena S Vyatchanina
- Federal State Scientific Institution "Institute of Toxicology", Federal Medico-Biological Agency, Bekhtereva str. 1, St. Petersburg 192019, Russia.
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Páez-Osuna F, Calderón-Campuzano MF, Soto-Jiménez MF, Ruelas-Inzunza JR. Trace metals (Cd, Cu, Ni, and Zn) in blood and eggs of the sea turtle Lepidochelys olivacea from a nesting colony of Oaxaca, Mexico. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2010; 59:632-641. [PMID: 20396874 DOI: 10.1007/s00244-010-9516-3] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2009] [Accepted: 03/29/2010] [Indexed: 05/29/2023]
Abstract
Trace metals (Cd, Cu, Ni, and Zn) concentrations were assessed in the sea turtle Lepidochelys olivacea from a nesting colony of Oaxaca, Mexico. Twenty-five female turtles were sampled, a total of 250 eggs were collected during the "arribada" event of the 2005-2006 season. Zn concentrations were highest in the yolk [72.3 ± 10.9 μg/g dry weight (dw)] and blood (58.4 ± 4.7 μg/g dw), whereas Ni concentrations were highest in the shell (48.5 ± 12.9 μg/g dw). The mean concentrations of Cu, and Cd in the analyzed tissues were lower than those reported in other sea turtle species. However, Zn and Ni concentrations in the yolk and shell, respectively, had the same distribution pattern observed at loggerhead and green turtles. On the basis of one nesting season, the maternal transfer and/or the excretion rates of trace metals via eggs-laying, estimated in terms of metal burdens in whole body, were 0.2, 7.8, 3.4, and 21.5% for Cd, Cu, Zn, and Ni, respectively.
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Affiliation(s)
- Federico Páez-Osuna
- Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Mazatlán, Sinaloa, Mexico.
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Massó-González EL, Antonio-García MT. Natural antioxidants protect against lead-induced damage during pregnancy and lactation in rat's pups. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2009; 72:2137-2142. [PMID: 19439355 DOI: 10.1016/j.ecoenv.2009.03.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2008] [Revised: 03/08/2009] [Accepted: 03/14/2009] [Indexed: 05/27/2023]
Abstract
The aim of this study was to add further evidence to the biochemical changes produced in lead-exposed pups and to investigate the potential role of natural antioxidants against the lead-induced damage. Pregnant Wistar rats received treatments with drinking water, divided into four groups, as follows: (1) distilled water; (2) lead (300mg/L); (3) lead+Zn (20mg/L)+vitamins A (50,000U/L), C (2g/L), E (500mg/L) and B(6) (500mg/L); and (4) vitamins+Zn solution. We found a significant decrease in haemoglobin and haematocrit values as well and an increase in haemolysis among lead-exposed pups. Vitamins and zinc supplementation were effective in restoring delta-aminolevulinic acid dehydratase, inhibited by lead in erythrocytes, but did not reach control values. Lead exposure increased the production of thiobarbituric acid reactive substances (TBARS) and catalase activity in kidneys and liver that were reduced by the co-administration of vitamins and zinc. Our findings suggest that administration of antioxidants during gestation and lactation could prevent some of the negative effects of lead.
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Affiliation(s)
- Elvira Luján Massó-González
- Department of Animal Physiology II, Biology College, Complutense University of Madrid, C/ José Antonio Novais, 2 Ciudad Universitaria 28040, Madrid, Spain.
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Guirlet E, Das K, Girondot M. Maternal transfer of trace elements in leatherback turtles (Dermochelys coriacea) of French Guiana. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2008; 88:267-76. [PMID: 18565604 DOI: 10.1016/j.aquatox.2008.05.004] [Citation(s) in RCA: 94] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2008] [Revised: 05/05/2008] [Accepted: 05/06/2008] [Indexed: 05/06/2023]
Abstract
In sea turtles, parental investment is limited to the nutrients and energy invested in eggs that will support embryonic development. Leatherback females have the largest clutches with the biggest eggs of the sea turtles and the highest reproductive output in reptiles. The migration between foraging sites and nesting beaches also represents high energy expenditure. The toxicokinetic of pollutants in the tissues is thus expected to vary during those periods but there is a lack of information in reptiles. Concentrations of essential (Copper, Zinc, Selenium) and non-essentials elements (Cadmium, Lead, Mercury) were determined in blood (n=78) and eggs (n=76) of 46 free-ranging leatherback females collected in French Guiana. Maternal transfer to eggs and relationships between blood and eggs concentrations during the nesting season were investigated. All trace elements were detectable in both tissues. Levels of toxic metals were lower than essential elements likely due to the high pelagic nature of leatherbacks that seems to limit exposure to toxic elements. Significant relationships between blood and egg concentrations were observed for Se and Cd. Se could have an important role in embryonic development of leatherback turtles and Cd transfer could be linked to similar carrier proteins as Se. Finally, as multiple clutches were sampled from each female, trends in trace elements were investigated along the nesting season. No change was observed in eggs but changes were recorded in blood concentrations of Cu. Cu level decreased while blood Pb levels increased through the nesting season. The high demand on the body during the breeding season seems to affect blood Cu concentrations. Calcium requirement for egg production with concomitant Pb mobilization could explain the increase in blood Pb concentrations along the nesting season.
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Affiliation(s)
- Elodie Guirlet
- Laboratoire d'Ecologie, Systématique et Evolution, Bâtiment 362, Université Paris Sud, 91405 Orsay Cedex, France.
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Keen CL, Clegg MS, Hanna LA, Lanoue L, Rogers JM, Daston GP, Oteiza P, Uriu-Adams JY. The plausibility of micronutrient deficiencies being a significant contributing factor to the occurrence of pregnancy complications. J Nutr 2003; 133:1597S-1605S. [PMID: 12730474 DOI: 10.1093/jn/133.5.1597s] [Citation(s) in RCA: 120] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Numerous studies support the concept that a major cause of pregnancy complications can be suboptimal embryonic and fetal nutrition. Although the negative effects of diets low in energy on pregnancy outcome are well documented, less clear are the effects of diets that are low in one or more essential micronutrients. However, several observational and intervention studies suggest that diets low in essential vitamins and minerals can pose a significant reproductive risk in diverse human populations. Although maternal nutritional deficiencies typically occur as a result of low dietary intakes of essential nutrients, nutritional deficiencies at the level of the conceptus can arise through multiple mechanisms. Evidence from experimental animals supports the concept that in addition to primary deficiencies, secondary embryonic and fetal nutritional deficiencies can be caused by diverse factors including genetics, maternal disease, toxicant insults and physiological stressors that can trigger a maternal acute phase response. These secondary responses may be significant contributors to the occurrence of birth defects. An implication of the above is that the frequency and severity of pregnancy complications may be reduced through an improvement in the micronutrient status of the mother.
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Affiliation(s)
- Carl L Keen
- Department of Nutrition and Internal Medicine, University of California, Davis, CA 95616, USA.
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McEvoy TG, Robinson JJ, Ashworth CJ, Rooke JA, Sinclair KD. Feed and forage toxicants affecting embryo survival and fetal development. Theriogenology 2001; 55:113-29. [PMID: 11198077 DOI: 10.1016/s0093-691x(00)00450-7] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Early embryonic and fetal development in mammals is sensitive to deficiencies and excesses of specific nutrients and toxicants. Operating directly and/or indirectly, these deficiencies and excesses can result in embryonic death or, in less severe circumstances, disruption of normal embryo and fetal growth. This paper explores the threats posed by feed and forage toxicants to the developing embryo and their impact on early programming of fetal development. Using significant examples, we consider the relevance of temporal sensitivities during early development in utero, and their implications for the morphology and functional competence of specific organs and tissues.
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Affiliation(s)
- T G McEvoy
- Scottish Agricultural College, Animal Biology Division, Craibstone Estate, Bucksburn, Aberdeen AB21 9YA, UK.
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Affiliation(s)
- K K Hirschi
- Departments of Pediatrics and Cellular and Molecular Biology, Baylor College of Medicine, Children's Nutrition Research Center, Houston, Texas, USA
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