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Liu Q, Wang D, Li W, Li X, Yang Z, Zhang A, He J, Chen X, Chang Y, Chen X, Tang NJ. Association of chromosomal abnormalities with prenatal exposure to heavy metals: A nested case-control study in high-risk pregnant women in China. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 265:115518. [PMID: 37776819 DOI: 10.1016/j.ecoenv.2023.115518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 09/20/2023] [Accepted: 09/22/2023] [Indexed: 10/02/2023]
Abstract
Prenatal exposure to heavy metals causes multiple hazards to fetal growth and development. Epidemiological studies on the association between heavy metals and fetal chromosomal abnormalities (CAs) are lacking. We conducted a nested case-control study in a cohort of high-risk pregnant women in China from September 2018 to June 2021. A total of 387 participants were diagnosed with fetal CAs in the case group and 699 were diagnosed with a normal karyotype in the control group. Amniotic fluid concentrations of 10 metals (barium, cobalt, antimony, manganese, ferrum, copper, selenium, strontium, vanadium, and chromium) were measured using inductively coupled plasma-mass spectrometry. We applied quantile g-computation and weighted quantile sum regression to assess the overall effect of metal mixtures and identify metals with significant weight. Logistic and Poisson regression analyses were used to estimate the effects of metals on CAs and CAs subtypes. Our results showed that the metal mixture concentrations were positively associated with the risk of fetal CAs. In adjusted logistic models, Sb was associated with fetal CAs (OR=1.15, 95% CI: 1.02-1.30), and revealed a linear dose-response relationship between Sb level and the risk of fetal CAs. Additionally, the exploratory analysis revealed that Sb levels were associated with Klinefelter syndrome (OR=1.452, 95% CI: 1.063-1.984) and Turner syndrome (OR=1.698; 95% CI,1.048-2.751). Our study revealed that metal mixtures are associated with a higher risk of fetal CAs and that this association may be driven primarily by Sb. Moreover, we provide a genetic perspective on the effects of heavy metals on sexual development in humans.
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Affiliation(s)
- Qianfeng Liu
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin 300070, China
| | - Dan Wang
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin 300070, China
| | - Wen Li
- Tianjin Central Hospital of Obstetrics and Gynecology, No. 156, Sanma Road, Nankai District, Tianjin 300100, China; Nankai University, Tianjin 30071, China; Tianjin Key Laboratory of Human Development and Reproductive Regulation, Tianjin 300100, China
| | - Xiaoyu Li
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin 300070, China
| | - Ze Yang
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin 300070, China
| | - Ai Zhang
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin 300070, China
| | - Jiayu He
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin 300070, China
| | - Xu Chen
- Tianjin Central Hospital of Obstetrics and Gynecology, No. 156, Sanma Road, Nankai District, Tianjin 300100, China; Nankai University, Tianjin 30071, China; Tianjin Key Laboratory of Human Development and Reproductive Regulation, Tianjin 300100, China
| | - Ying Chang
- Tianjin Central Hospital of Obstetrics and Gynecology, No. 156, Sanma Road, Nankai District, Tianjin 300100, China; Nankai University, Tianjin 30071, China; Tianjin Key Laboratory of Human Development and Reproductive Regulation, Tianjin 300100, China
| | - Xi Chen
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin 300070, China.
| | - Nai-Jun Tang
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin 300070, China
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Nunes EA, Silva HCD, Duarte NDAA, de Lima LE, Maraslis FT, Araújo MLD, Pedron T, Lange C, Freire BM, Matias AC, Batista BL, Barcelos GRM. Impact of DNA repair polymorphisms on DNA instability biomarkers induced by lead (Pb) in workers exposed to the metal. CHEMOSPHERE 2023:138897. [PMID: 37182709 DOI: 10.1016/j.chemosphere.2023.138897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 05/05/2023] [Accepted: 05/07/2023] [Indexed: 05/16/2023]
Abstract
Although the mechanisms of Pb-induced genotoxicity are well established, a wide individual's variation response is seen in biomarkers related to Pb toxicity, despite similar levels of metal exposure. This may be related to intrinsic variations, such as genetic polymorphisms; moreover, very little is known about the impact of genetic variations related to DNA repair system on DNA instability induced by Pb. In this context, the present study aimed to assess the impact of SNPs in enzymes related to DNA repair system on biomarkers related to acute toxicity and DNA damage induced by Pb exposure, in individuals occupationally exposed to the metal. A cross-sectional study was run with 154 adults (males, >18 years) from an automotive batteries' factory, in Brazil. Blood lead levels (BLL) were determined by ICP-MS; biomarkers related to acute toxicity and DNA instability were monitored by the buccal micronucleus cytome (BMNCyt) assay and genotyping of polymorphisms of MLH1 (rs1799977), OGG1 (rs1052133), PARP1 (rs1136410), XPA (rs1800975), XPC (rs2228000) and XRCC1 (rs25487) were performed by TaqMan assays. BLL ranged from 2.0 to 51 μg dL-1 (mean 20 ± 12 μg dL-1) and significant associations between BLL and BMNCyt biomarkers related to cellular proliferation and cytokinetic, cell death and DNA damage were observed. Furthermore, SNPs from the OGG1, XPA and XPC genes were able to modulate interactions in nuclear bud formation (NBUDs) and micronucleus (MNi) events. Taken together, our data provide further evidence that polymorphisms related to DNA repair pathways may modulate Pb-induced DNA damage; studies that investigate the association between injuries to genetic material and susceptibilities in the workplace can provide additional information on the etiology of diseases and the determination of environmentally responsive genes.
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Affiliation(s)
- Emilene Arusievicz Nunes
- Department of Biosciences, Institute of Health and Society, Federal University of São Paulo, Rua XV de Novembro 195, CEP 11.060-001, Santos, Brazil.
| | - Heliton Camargo da Silva
- Department of Biosciences, Institute of Health and Society, Federal University of São Paulo, Rua XV de Novembro 195, CEP 11.060-001, Santos, Brazil.
| | - Nathália de Assis Aguilar Duarte
- Department of Biosciences, Institute of Health and Society, Federal University of São Paulo, Rua XV de Novembro 195, CEP 11.060-001, Santos, Brazil.
| | - Lindiane Eloisa de Lima
- Department of Biosciences, Institute of Health and Society, Federal University of São Paulo, Rua XV de Novembro 195, CEP 11.060-001, Santos, Brazil.
| | - Flora Troina Maraslis
- Department of Biosciences, Institute of Health and Society, Federal University of São Paulo, Rua XV de Novembro 195, CEP 11.060-001, Santos, Brazil.
| | - Marília Ladeira de Araújo
- Department of Biosciences, Institute of Health and Society, Federal University of São Paulo, Rua XV de Novembro 195, CEP 11.060-001, Santos, Brazil.
| | - Tatiana Pedron
- Center of Natural and Human Sciences, Federal University of ABC, Avenida Dos Estados, 5001, CEP 09210-580, Santo André, Brazil.
| | - Camila Lange
- Center of Natural and Human Sciences, Federal University of ABC, Avenida Dos Estados, 5001, CEP 09210-580, Santo André, Brazil.
| | - Bruna Moreira Freire
- Center of Natural and Human Sciences, Federal University of ABC, Avenida Dos Estados, 5001, CEP 09210-580, Santo André, Brazil.
| | - Andreza Cândido Matias
- Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of São Paulo, Avenida Professor Lineu Prestes, 1524, CEP 05508-000, São Paulo, Brazil.
| | - Bruno Lemos Batista
- Center of Natural and Human Sciences, Federal University of ABC, Avenida Dos Estados, 5001, CEP 09210-580, Santo André, Brazil.
| | - Gustavo Rafael Mazzaron Barcelos
- Department of Biosciences, Institute of Health and Society, Federal University of São Paulo, Rua XV de Novembro 195, CEP 11.060-001, Santos, Brazil.
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3
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Zhang L, Zhang L, Zhang X, Liu P, Wang Y, Han X, Chen L. Fluorescent imaging to provide visualized evidences for mercury induced hypoxia stress. JOURNAL OF HAZARDOUS MATERIALS 2023; 444:130374. [PMID: 36399820 DOI: 10.1016/j.jhazmat.2022.130374] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 10/24/2022] [Accepted: 11/08/2022] [Indexed: 06/16/2023]
Abstract
As one typical toxic and dangerous heavy metal, mercury brings incalculable hazards to the environment and human, the mechanism at the molecular level is unclear. There is no visualized evidence to support directly that mercury ions (Hg2+) exposure may induce secondary stress, which is associated with the risk of hypoxia microenvironment in biological systems. Hypoxia occurs in many physiological and pathophysiological processes in the living system, accompanying overexpression of various biomarkers, such as nitroreductase (NTR). Hence, we had successfully developed two NTR-selective fluorescent probes with excellent performance for evaluating the hypoxia degree in vivo and in vitro. We visualized and qualitatively monitored the fluctuations of the endogenous NTR levels in living cells and zebrafish. The imaging results exhibited that different doses of Hg2+ exposure elevated the NTR levels and the same trend in changes of NTR as extrinsic hypoxia exposure, suggesting that Hg2+ exposure induced microenvironmental changes resulting in the hypoxia stress. This is the first time to provide visual evidence to support that Hg2+ stress may involve in the intracellular hypoxia microenvironment through monitoring the dynamic of NTR levels in the living systems. Our results may provide a novel insight into the molecular mechanisms of typical heavy metal element induced toxicity.
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Affiliation(s)
- Li Zhang
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Shandong Key Laboratory of Coastal Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Liangwei Zhang
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Shandong Key Laboratory of Coastal Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China.
| | - Xia Zhang
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Shandong Key Laboratory of Coastal Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China; University of Chinese Academy of Sciences, Beijing 100049, China; School of Pharmacy, Binzhou Medical University, Yantai 264003, China
| | - Ping Liu
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Shandong Key Laboratory of Coastal Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China
| | - Yue Wang
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Shandong Key Laboratory of Coastal Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiaoyue Han
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Shandong Key Laboratory of Coastal Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lingxin Chen
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Shandong Key Laboratory of Coastal Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China; Laboratory for Marine Biology and Biotechnology, Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China; School of Pharmacy, Binzhou Medical University, Yantai 264003, China.
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4
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Kević Dešić S, Viljetić B, Wagner J. Assessment of the Genotoxic and Cytotoxic Effects of Turpentine in Painters. Life (Basel) 2023; 13:life13020530. [PMID: 36836885 PMCID: PMC9966049 DOI: 10.3390/life13020530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 02/03/2023] [Accepted: 02/13/2023] [Indexed: 02/17/2023] Open
Abstract
Turpentine is a fluid used mainly as a solvent for thinning oil-based paints, obtained by distilling the resin of coniferous trees. Fine art painters use turpentine on a daily basis. The aim of this study was to investigate the genotoxic effect of turpentine and to determine the lymphocyte proliferation index in the peripheral blood of individuals occupationally exposed to turpentine. For this purpose, the cytokinesis-block micronucleus assay (CBMN) was used to determine the total number of micronuclei (MNi), nucleoplasmic bridges (NPB), and nuclear buds (NBUD), as well as the cell proliferation index (CBPI) in the peripheral blood lymphocytes of the subjects. Twenty-two subjects exposed to turpentine daily through their work participated in the study and were compared to twenty subjects in the control group. The results showed a significant increase in the number of micronuclei and other genotoxicity parameters, as well as significant cytotoxicity based on CBPI values. In addition, the genotoxic and cytotoxic effects of turpentine were found to be time-dependent, i.e., the deleterious effects of turpentine on genetic material increase with prolonged exposure. These results strongly suggest that exposure to turpentine vapors may affect genome stability and that occupational safety measures should be taken when using turpentine.
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Affiliation(s)
- Sara Kević Dešić
- Department of Medical Biology and Genetics, Faculty of Medicine, Josip Juraj Strossmayer University, 31000 Osijek, Croatia
| | - Barbara Viljetić
- Department of Medical Chemistry, Biochemistry and Clinical Chemistry, Faculty of Medicine, Josip Juraj Strossmayer University, 31000 Osijek, Croatia
- Correspondence: (B.V.); (J.W.)
| | - Jasenka Wagner
- Department of Medical Biology and Genetics, Faculty of Medicine, Josip Juraj Strossmayer University, 31000 Osijek, Croatia
- Correspondence: (B.V.); (J.W.)
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Sadiku OO, Rodríguez-Seijo A. Metabolic and genetic derangement: a review of mechanisms involved in arsenic and lead toxicity and genotoxicity. Arh Hig Rada Toksikol 2022; 73:244-255. [PMID: 36607725 PMCID: PMC9985351 DOI: 10.2478/aiht-2022-73-3669] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 07/01/2022] [Accepted: 10/01/2022] [Indexed: 01/07/2023] Open
Abstract
Urbanisation and industrialisation are on the rise all over the world. Environmental contaminants such as potentially toxic elements (PTEs) are directly linked with both phenomena. Two PTEs that raise greatest concern are arsenic (As) and lead (Pb) as soil and drinking water contaminants, whether they are naturally occurring or the consequence of human activities. Both elements are potential carcinogens. This paper reviews the mechanisms by which As and Pb impair metabolic processes and cause genetic damage in humans. Despite efforts to ban or limit their use, due to high persistence both continue to pose a risk to human health, which justifies the need for further toxicological research.
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Affiliation(s)
- Olubusayo Olujimi Sadiku
- University of Lagos, College of Medicine, Faculty of Basic Medical Sciences, Department of Medical Laboratory Science, Lagos, Nigeria
| | - Andrés Rodríguez-Seijo
- University of Porto, Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Matosinhos, Portugal
- University of Porto, Faculty of Sciences, Biology Department, Porto, Portugal
- University of Vigo, Department of Plant Biology and Soil Sciences, Ourense, Spain
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6
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Attia SM, Ahmad SF, Nadeem A, Attia M, Ansari MA, Al-Hamamah MA, Hussein MH, Alameen AA, Alasmari AF, Bakheet SA. Multiple exposure to methylmercury aggravates DNA damage in the BTBR T + Itpr3 tf/J autistic mouse model: the role of DNA repair efficiency. Toxicology 2022; 477:153277. [PMID: 35914580 DOI: 10.1016/j.tox.2022.153277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 07/21/2022] [Accepted: 07/28/2022] [Indexed: 11/16/2022]
Abstract
Environmental and genetic factors have been recognized to play major roles in the pathogenesis of autism. Here we examined the BTBR T+Itpr3tf/J (BTBR) mice's susceptibility, an autistic model, to the genotoxic effects and DNA repair dysregulation of methylmercury. Micronuclei formation and oxidative DNA damage were analyzed using the micronucleus/fluorescence in situ hybridization test and modified comet assay, respectively. The results showed higher centromeric-positive micronuclei and oxidative DNA damage in BTBR mice exposed to methylmercury than the unexposed mice, which indicates that mutagenesis aggravated in BTBR mice after methylmercury exposure. Lipid peroxides in BTBR mice were significantly elevated, with a decrease in reduced/oxidized glutathione ratio after methylmercury exposure, indicating an augmenting oxidant-antioxidant imbalance. The expression of several genes involved in DNA repair was markedly altered in BTBR mice after methylmercury exposure as evaluated via PCR array and RT-PCR analyses. Declining of the antioxidant defense and dysregulation in DNA repair process after methylmercury exposure may explain the aggravated genotoxic susceptibility of BTBR mice. Thus, autistic individuals exposed to methylmercury must be under regular medical follow-up through standard timetabled medical laboratory inquiry to allow for early recognition of any mutagenic changes. Additionally, strategies that elevate cellular antioxidants/DNA repair efficiency may counteract methylmercury-induced genotoxicity.
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Affiliation(s)
- S M Attia
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia.
| | - S F Ahmad
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - A Nadeem
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Msm Attia
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - M A Ansari
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - M A Al-Hamamah
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - M H Hussein
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - A A Alameen
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - A F Alasmari
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - S A Bakheet
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
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Keshavarz M, Eslami J, Abedi-Firouzjah R, Mortazavi SA, Abbasi S, Mortazavi G. How Do Different Physical Stressors' Affect the Mercury Release from Dental Amalgam Fillings and Microleakage? A Systematic Review. J Biomed Phys Eng 2022; 12:227-236. [PMID: 35698539 PMCID: PMC9175125 DOI: 10.31661/jbpe.v0i0.2009-1175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 12/12/2020] [Indexed: 06/15/2023]
Abstract
BACKGROUND Approximately 50% of dental amalgam is elemental mercury by weight. Accumulating body of evidence now shows that not only static magnetic fields (SMF) but both ionizing and non-ionizing electromagnetic radiations can increase the rate of mercury release from dental amalgam fillings. Iranian scientists firstly addressed this issue in 2008 but more than 10 years later, it became viral worldwide. OBJECTIVE This review was aimed at evaluating available data on the magnitude of the effects of different physical stressors (excluding chewing and brushing) on the release of toxic mercury from dental amalgam fillings and microleakage. MATERIAL AND METHODS The papers reviewed in this study were searched from PubMed, Google Scholar, and Scopus (up to 1 December 2019). The keywords were identified from our initial research matching them with those existing on the database of Medical Subject Headings (MeSH). The non-English papers and other types of articles were not included in this review. RESULTS Our review shows that exposure to static magnetic fields (SMF) such as those generated by MRI, electromagnetic fields (EMF) such as those produced by mobile phones; ionizing electromagnetic radiations such as X-rays and non- Ionizing electromagnetic radiation such as lasers and light cure devices can significantly increase the release of mercury from dental amalgam restorations and/or cause microleakage. CONCLUSION The results of this review show that a wide variety of physical stressors ranging from non-ionizing electromagnetic fields to ionizing radiations can significantly accelerate the release of mercury from amalgam and cause microleakage.
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Affiliation(s)
- Marzieh Keshavarz
- MSc, Department of Medical Physics and Engineering, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Jamshid Eslami
- PhD, Department of Anesthesiology, School of Nursing, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Razzagh Abedi-Firouzjah
- MSc, Cellular and Molecular Research Center, Yasuj University of Medical Sciences, Yasuj, Iran
| | | | - Samaneh Abbasi
- MSc Student, Department of Medical Physics and Engineering, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ghazal Mortazavi
- DDS, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran
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8
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Mercury and cancer: Where are we now after two decades of research? Food Chem Toxicol 2022; 164:113001. [DOI: 10.1016/j.fct.2022.113001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 04/04/2022] [Accepted: 04/06/2022] [Indexed: 11/21/2022]
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Yumi Noronha N, da Silva Rodrigues G, Harumi Yonehara Noma I, Fernanda Cunha Brandao C, Pereira Rodrigues K, Colello Bruno A, Sae-Lee C, Moriguchi Watanabe L, Augusta de Souza Pinhel M, Mello Schineider I, Luciano de Almeida M, Barbosa Júnior F, Araújo Morais D, Tavares de Sousa Júnior W, Plösch T, Roberto Bueno Junior C, Barbosa Nonino C. 14-weeks combined exercise epigenetically modulated 118 genes of menopausal women with prediabetes. Front Endocrinol (Lausanne) 2022; 13:895489. [PMID: 36046788 PMCID: PMC9423096 DOI: 10.3389/fendo.2022.895489] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Accepted: 07/19/2022] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Pre-diabetes precedes Diabetes Mellitus (DM) disease and is a critical period for hyperglycemia treatment, especially for menopausal women, considering all metabolic alterations due to hormonal changes. Recently, the literature has demonstrated the role of physical exercise in epigenetic reprogramming to modulate the gene expression patterns of metabolic conditions, such as hyperglycemia, and prevent DM development. In the present study, we hypothesized that physical exercise training could modify the epigenetic patterns of women with poor glycemic control. METHODS 48 post-menopause women aged 60.3 ± 4.5 years were divided according to their fasting blood glucose levels into two groups: Prediabetes Group, PG (n=24), and Normal Glucose Group, NGG (n=24). All participants performed 14 weeks of physical exercise three times a week. The Infinium Methylation EPIC BeadChip measured the participants' Different Methylated Regions (DMRs). RESULTS Before the intervention, the PG group had 12 DMRs compared to NGG. After the intervention, five DMRs remained different. Interestingly, when comparing the PG group before and after training, 118 DMRs were found. The enrichment analysis revealed that the genes were related to different biological functions such as energy metabolism, cell differentiation, and tumor suppression. CONCLUSION Physical exercise is a relevant alternative in treating hyperglycemia and preventing DM in post-menopause women with poor glycemic control.
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Affiliation(s)
- Natália Yumi Noronha
- Department of Internal Medicine, Ribeirão Preto Medical School, Ribeirão Preto, São Paulo, Brazil
| | - Guilherme da Silva Rodrigues
- Department of Internal Medicine, Ribeirão Preto Medical School, Ribeirão Preto, São Paulo, Brazil
- *Correspondence: Guilherme da Silva Rodrigues,
| | - Isabella Harumi Yonehara Noma
- Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | - Camila Fernanda Cunha Brandao
- Department of Internal Medicine, Ribeirão Preto Medical School, Ribeirão Preto, São Paulo, Brazil
- Physical Education School, Minas Gerais State University, Divinópolis, Minas Gerais, Brazil
| | - Karine Pereira Rodrigues
- Department of Internal Medicine, Ribeirão Preto Medical School, Ribeirão Preto, São Paulo, Brazil
| | - Alexandre Colello Bruno
- Department of Radiotherapy, Ribeirão Preto Medical School Hospital and Clinics, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Chanachai Sae-Lee
- Research Division, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | | | - Marcela Augusta de Souza Pinhel
- Department of Internal Medicine, Ribeirão Preto Medical School, Ribeirão Preto, São Paulo, Brazil
- Department of Molecular Biology, São José do Rio Preto Medical School, São José do Rio Preto, SP, Brazil
| | | | | | - Fernando Barbosa Júnior
- Department of Clinical Analysis, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Déborah Araújo Morais
- Department of Clinical Analysis, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Wellington Tavares de Sousa Júnior
- Department of Clinical Analysis, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Torsten Plösch
- University Medical Center Groningen, Groningen, Netherlands
| | - Carlos Roberto Bueno Junior
- Department of Internal Medicine, Ribeirão Preto Medical School, Ribeirão Preto, São Paulo, Brazil
- Ribeirão Preto School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil
| | - Carla Barbosa Nonino
- Department of Internal Medicine, Ribeirão Preto Medical School, Ribeirão Preto, São Paulo, Brazil
- Department of Health Sciences, Ribeirão Preto Medical School, Ribeirão Preto, São Paulo, Brazil
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Nersesyan A, Kundi M, Fenech M, Stopper H, da Silva J, Bolognesi C, Mišík M, Knasmueller S. Recommendations and quality criteria for micronucleus studies with humans. MUTATION RESEARCH. REVIEWS IN MUTATION RESEARCH 2022; 789:108410. [PMID: 35690413 DOI: 10.1016/j.mrrev.2021.108410] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 12/15/2021] [Accepted: 12/17/2021] [Indexed: 06/15/2023]
Abstract
Micronucleus (MN) analyses in peripheral blood lymphocytes and exfoliated cells from different organs (mouth, nose, bladder and cervix) are at present the most widely used approaches to detect damage of genetic material in humans. MN are extranuclear DNA-containing bodies, which can be identified microscopically. They reflect structural and numerical chromosomal aberrations and are formed as a consequence of exposure to occupational, environmental and lifestyle genotoxins. They are also induced as a consequence of inadequate intake of certain trace elements and vitamins. High MN rates are associated with increased risk of cancer and a range of non-cancer diseases in humans. Furthermore, evidence is accumulating that measurements of MN could be a useful tool for the diagnosis and prognosis of different forms of cancer and other diseases (inflammation, infections, metabolic disorders) and for the assessment of the therapeutic success of medical treatments. Recent reviews of the current state of knowledge suggest that many clinical studies have methodological shortcomings. This could lead to controversial findings and limits their usefulness in defining the impact of exposure concentrations of hazardous chemicals, for the judgment of remediation strategies, for the diagnosis of diseases and for the identification of protective or harmful dietary constituents. This article describes important quality criteria for human MN studies and contains recommendations for acceptable study designs. Important parameters that need more attention include sufficiently large group sizes, adequate duration of intervention studies, the exclusion of confounding factors which may affect the results (sex, age, body mass index, nutrition, etc.), the evaluation of appropriate cell numbers per sample according to established scoring criteria as well as the use of proper stains and adequate statistical analyses.
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Affiliation(s)
- A Nersesyan
- Institute of Cancer Research, Department of Medicine I, Medical University of Vienna, Vienna, Austria
| | - M Kundi
- Center for Public Health, Department of Environmental Health, Medical University of Vienna, Vienna, Austria
| | - M Fenech
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, Australia; Universiti Kebangsaan Malaysia, Selangor, Malaysia; Genome Health Foundation, North Brighton, SA, Australia
| | - H Stopper
- Institute of Pharmacology and Toxicology, Wuerzburg University, Wuerzburg, Germany
| | - J da Silva
- Laboratory of Genetic Toxicology, Lutheran University of Brazil (ULBRA) & LaSalle University (UniLaSalle), Canoas, RS, Brazil
| | - C Bolognesi
- Environmental Carcinogenesis Unit, Ospedale Policlinico San Martino, Genoa, Italy
| | - M Mišík
- Institute of Cancer Research, Department of Medicine I, Medical University of Vienna, Vienna, Austria
| | - S Knasmueller
- Institute of Cancer Research, Department of Medicine I, Medical University of Vienna, Vienna, Austria.
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11
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Sousa LAD, Zaitune MPDA. Uma revisão de escopo de revisões sistemáticas sobre exposição humana ao mercúrio. REVISTA BRASILEIRA DE SAÚDE OCUPACIONAL 2022. [DOI: 10.1590/2317-6369/38120pt2022v47e18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
Abstract
Resumo: Introdução: a promulgação da Convenção de Minamata no Brasil em 2018 incentivou o cumprimento dos seus objetivos em reduzir o uso e a poluição por mercúrio. Objetivo: caracterizar a produção científica sobre exposição humana ao mercúrio e identificar lacunas de conhecimento a fim de subsidiar a tomada de decisão em saúde. Métodos: revisão de escopo de revisões sistemáticas e metanálises, sem restrição de idioma ou data de publicação, utilizando as bases PubMed, BVS e Cochrane Library. Resultados: 71 estudos atenderam aos critérios de elegibilidade, com 40 revisões sistemáticas, 30 metanálises e 1 overview. Amálgama dentário e contaminação alimentar e ambiental por atividades que utilizam mercúrio foram as fontes de exposição mais mencionadas. Os temas mais estudados contaram com transtornos mentais e comportamentais, assim como uso de biomarcadores e testes neurocomportamentais relacionados à exposição ao mercúrio. Discussão: lacunas como a exposição ocupacional ao mercúrio, uso em práticas tradicionais e em cosméticos apontam para a necessidade de mais estudos. As revisões identificadas podem oferecer subsídios para sínteses de evidências e protocolos de atenção à saúde de populações expostas, assim como para a elaboração de políticas públicas que visem o controle do uso e da exposição ao mercúrio.
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12
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Sánchez-Alarcón J, Milić M, Bustamante-Montes LP, Isaac-Olivé K, Valencia-Quintana R, Ramírez-Durán N. Genotoxicity of Mercury and Its Derivatives Demonstrated In Vitro and In Vivo in Human Populations Studies. Systematic Review. TOXICS 2021; 9:326. [PMID: 34941760 PMCID: PMC8704886 DOI: 10.3390/toxics9120326] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 11/23/2021] [Accepted: 11/23/2021] [Indexed: 12/11/2022]
Abstract
Beside partial coverage in three reviews so far (1994, 2009, 2019), there is no review on genotoxic studies dealing with mercury (Hg) and human exposure using the most usual genotoxic assays: sister chromatid exchanges (SCE), chromosomal aberrations (CA), cytochalasin B blocked micronucleus assay (CBMN), and single-cell gel electrophoresis (SCGE or alkaline comet assay). Fifty years from the first Hg genotoxicity study and with the Minamata Convention in force, the genotoxic potential of Hg and its derivatives is still controversial. Considering these antecedents, we present this first systematic literature overview of genotoxic studies dealing with Hg and human exposure that used the standard genotoxic assays. To date, there is not sufficient evidence for Hg human carcinogen classification, so the new data collections can be of great help. A review was made of the studies available (those published before the end of October 2021 on PubMed or Web of Science in English or Spanish language) in the scientific literature dealing with genotoxic assays and human sample exposure ex vivo, in vivo, and in vitro. Results from a total of 66 articles selected are presented. Organic (o)Hg compounds were more toxic than inorganic and/or elemental ones, without ruling out that all represent a risk. The most studied inorganic (i)Hg compounds in populations exposed accidentally, occupationally, or iatrogenically, and/or in human cells, were Hg chloride and Hg nitrate and of the organic compounds, were methylmercury, thimerosal, methylmercury chloride, phenylmercuric acetate, and methylmercury hydroxide.
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Affiliation(s)
- Juana Sánchez-Alarcón
- Doctorado en Ciencias de la Salud, Facultad de Ciencias de la Conducta, Universidad Autónoma del Estado de México, Toluca 50180, Estado de México, Mexico;
- Cuerpo Académico Ambiente y Genética UATLX-CA-223, Laboratorio “Rafael Villalobos-Pietrini” de Toxicología Genómica y Química Ambiental, Facultad de Agrobiología, Universidad Autónoma de Tlaxcala, Santa María Acuitlapilco 90120, Tlaxcala, Mexico;
| | - Mirta Milić
- Mutagenesis Unit, Institute for Medical Research and Occupational Health, 10000 Zagreb, Croatia; or
| | | | - Keila Isaac-Olivé
- Facultad de Medicina, Universidad Autónoma del Estado de México, Toluca 50180, Estado de México, Mexico;
| | - Rafael Valencia-Quintana
- Cuerpo Académico Ambiente y Genética UATLX-CA-223, Laboratorio “Rafael Villalobos-Pietrini” de Toxicología Genómica y Química Ambiental, Facultad de Agrobiología, Universidad Autónoma de Tlaxcala, Santa María Acuitlapilco 90120, Tlaxcala, Mexico;
| | - Ninfa Ramírez-Durán
- Facultad de Medicina, Universidad Autónoma del Estado de México, Toluca 50180, Estado de México, Mexico;
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13
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Kocadal K, Alkas FB, Ulutas OK, Kurt MA, Battal D, Sardas S, Etikan I, Saygi S. Biomonitoring of Heavy Metal(oid)s in the Residents of Abandoned Mining District in Northern Cyprus. Biol Trace Elem Res 2021; 199:3667-3676. [PMID: 33409917 DOI: 10.1007/s12011-020-02520-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 11/25/2020] [Indexed: 11/28/2022]
Abstract
Several heavy metal(oid)s are known mutagens and/or carcinogens. Exposure to these elements can lead to the development of malignancies. Gemikonagi, which is in the western part of Cyprus, was the hometown of mining operations. It is believed that the mining site is a significant heavy metal(oid) source for the environment and residents. In this biomonitoring study, a total of 60 blood samples from Gemikonagi region (n = 30) and from a control region located 40 km northeast from the mining site, Tepebasi (n = 30), and 5 soil samples from each region were collected to conduct heavy metal analysis using ICP-MS. To conduct genotoxicity analysis, alkaline comet assay and in vivo micronucleus assays were used. t test for independent samples and Mann-Whitney U tests were applied. Copper and iron were found to be enriched in Gemikonagi, while arsenic was found to be enriched in Tepebasi. Genotoxicity analyses demonstrated a statistically significant increase in parameters of micronuclei frequency (p value = 0.0001) and Comet Assay statistics upon exposure to some elements, such as arsenic (p value = 0.04) and copper (p value = 0.012). The results indicate that a general enrichment in heavy elements is not endemic to Gemikonagi, but a problem that might be generalized to the entirety of Cyprus. Graphical abstract.
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Affiliation(s)
- Kumsal Kocadal
- Department of Toxicology, Faculty of Pharmacy, Near East University, 99138, Nicosia, North Cyprus
| | - Fehmi Burak Alkas
- Department of Toxicology, Faculty of Pharmacy, Near East University, 99138, Nicosia, North Cyprus
| | - Onur Kenan Ulutas
- Department of Toxicology, Faculty of Pharmacy, Gazi University, 06330, Ankara, Turkey
| | - Mehmet Ali Kurt
- Department of Env. Eng., Faculty of Engineering, Mersin University, 33169, Mersin, Turkey
| | - Dilek Battal
- Department of Toxicology, Faculty of Pharmacy, Near East University, 99138, Nicosia, North Cyprus.
- Department of Toxicology, Faculty of Pharmacy, Mersin University, 33169, Mersin, Turkey.
| | - Semra Sardas
- Department of Toxicology, Faculty of Pharmacy, Near East University, 99138, Nicosia, North Cyprus
- Department of Toxicology, Faculty of Pharmacy, Istinye University, 34010, Istanbul, Turkey
| | - Ilker Etikan
- Department of Biostatistics, Faculty of Medicine, Near East University, 99138, Nicosia, North Cyprus
| | - Sahan Saygi
- Department of Toxicology, Faculty of Pharmacy, Near East University, 99138, Nicosia, North Cyprus
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14
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The prevalence of inorganic mercury in human cells increases during aging but decreases in the very old. Sci Rep 2021; 11:16714. [PMID: 34408264 PMCID: PMC8373952 DOI: 10.1038/s41598-021-96359-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 07/30/2021] [Indexed: 11/09/2022] Open
Abstract
Successful aging is likely to involve both genetic and environmental factors, but environmental toxicants that accelerate aging are not known. Human exposure to mercury is common, and mercury has genotoxic, autoimmune, and free radical effects which could contribute to age-related disorders. The presence of inorganic mercury was therefore assessed in the organs of 170 people aged 1-104 years to determine the prevalence of mercury in human tissues at different ages. Mercury was found commonly in cells of the brain, kidney, thyroid, anterior pituitary, adrenal medulla and pancreas. The prevalence of mercury in these organs increased during aging but decreased in people aged over 80 years. People with mercury in one organ usually also had mercury in several others. In conclusion, the prevalence of inorganic mercury in human organs increases with age. The relative lack of tissue mercury in the very old could account for the flattened mortality rate and reduced incidence of cancer in this advanced age group. Since mercury may accelerate aging, efforts to reduce atmospheric mercury pollution could improve the chances of future successful aging.
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15
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Wang K, Meng Y, Wang T, Tu Y, Gong S, Zhang G, Au W, Xia Z. Global and gene-specific promoter methylation, and micronuclei induction in lead-exposed workers: A cross-sectional study. ENVIRONMENTAL AND MOLECULAR MUTAGENESIS 2021; 62:428-434. [PMID: 34269489 DOI: 10.1002/em.22451] [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: 12/12/2020] [Revised: 06/11/2021] [Accepted: 07/14/2021] [Indexed: 02/05/2023]
Abstract
Perturbation of epigenetic regulation is a well-established mechanism for cancer but its role for lead (Pb)-associated toxicity has not been adequately investigated. We aimed to investigate whether occupational Pb exposure is associated with micronuclei (MN) frequency and to further explored the mediating roles of epigenetic gene regulation. All the Pb-exposed workers recruited from a Chinese acid battery factory, blood lead levels (BLLs) and MN frequency in lymphocytes were measured. In addition, methylation levels of seven genes (Line-1, RASSF1A, RUNX3, p16, CYP26C1, hMLH1, p15) were examined among 230 workers. Robust Poisson regression model was used to investigate the association between BLLs and MN frequency. Mediation analysis was used to explore the mediating role of specific DNA methylation. Among total 677 participants, 71% were male, median BLLs was 229.1 μg/L (P25 = 155.5, P75 = 319.3; ranged from 8.9 to 647.7 μg/L), mean MN frequency was 2.5‰ (SD = 1.8‰; ranged from 0 to 9‰). Results from base model, adjusted for age, sex, and body mass index, showed that MN frequency would increase 1.38 (95%confidential interval: 1.34, 1.43) per 100 μg/L increment in BLLs. Using categorized exposure variable analyses, a BLLs dose-response increase in MN frequency was observed: 2.74 (2.13, 3.51), 3.43 (2.73, 4.32), 4.41 (3.89, 5.01) to 6.86 (6.02, 7.81). Mediation analysis indicated that Line-1 methylation significantly mediated 3.6% of the association of BLLs with MN frequency. Occupational Pb exposure induces MN frequency in a dose-response relationship. Part of this association was mediated by Line-1 promotor methylation.
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Affiliation(s)
- Kan Wang
- School of Public Health, and Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China
- Department of Epidemiology, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Yu Meng
- School of Public Health, and Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China
| | - Tuanwei Wang
- School of Public Health, and Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China
| | - Yuting Tu
- School of Public Health, and Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China
| | - Shiyang Gong
- School of Public Health, and Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China
| | - Guanghui Zhang
- School of Public Health, Xinxiang Medical University, Henan, China
| | - William Au
- University of Medicine Pharmacy, Science and Technology, Targu Mures, Romania, and Shantou University Medical College, Shantou, China
| | - Zhaolin Xia
- School of Public Health, and Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China
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16
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Setayesh T, Kundi M, Nersesyan A, Stopper H, Fenech M, Krupitza G, Knasmüller S. Use of micronucleus assays for the prediction and detection of cervical cancer: a meta-analysis. Carcinogenesis 2021; 41:1318-1328. [PMID: 32780106 DOI: 10.1093/carcin/bgaa087] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 07/13/2020] [Accepted: 08/03/2020] [Indexed: 12/13/2022] Open
Abstract
Cervical cancer (CC) is the fourth most common cancer in women; the survival rates depend strongly on its early detection. The Pap test is the most frequently used diagnostic tool, but due to its limited sensitivity/specificity, additional screening tests are needed. Therefore, we evaluated the use of micronucleus (MN) assays with cervical cells for the prediction and diagnosis of CC. MN reflects structural and numerical chromosomal aberrations. A search was performed in Pubmed, Scopus, Thomson ISI and Google Scholar. Subsequently, meta-analyses were performed for different grades of abnormal findings in smears and biopsies from patients which were diagnosed with CC. Results of 21 studies in which findings of MN experiments were compared with data from Pap tests show that higher MN frequencies were found in women with abnormal cells that are indicative for increased cancer risks. MN frequency ratios increased in the order inflammation (2.1) < ASC-US and ASC-H (3.3) < LGSIL (4.4) < HGSIL (8.4). Furthermore, results are available from 17 investigations in which MN were scored in smears from patients with neoplasia. MN rates increased with the degree of neoplasia [CIN 1 (4.6) < CIN 2 (6.5) and CIN 3 (10.8)] and were significantly higher (8.8) in CC patients. Our meta-analysis indicates that the MN assay, which is easy to perform in combination with Pap tests, may be useful for the detection/prediction of CC. However, standardization (including definition of the optimal cell numbers and stains) and further validation is necessary before the MN test can be implemented in routine screening.
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Affiliation(s)
- Tahereh Setayesh
- Department of Internal Medicine I, Institute of Cancer Research, Medical University of Vienna, Vienna, Austria
| | - Michael Kundi
- Department of Environmental Health, Center for Public Health, Medical University of Vienna, Vienna, Austria
| | - Armen Nersesyan
- Department of Internal Medicine I, Institute of Cancer Research, Medical University of Vienna, Vienna, Austria
| | - Helga Stopper
- Institute of Pharmacology and Toxicology, University of Würzburg, Würzburg, Germany
| | - Michael Fenech
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, Australiaand
| | - Georg Krupitza
- Department of Pathology, Medical University of Vienna, Vienna 1090, Austria
| | - Siegfried Knasmüller
- Department of Internal Medicine I, Institute of Cancer Research, Medical University of Vienna, Vienna, Austria
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17
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Mišík M, Nersesyan A, Kment M, Ernst B, Setayesh T, Ferk F, Holzmann K, Krupitza G, Knasmueller S. Micronucleus assays with the human derived liver cell line (Huh6): A promising approach to reduce the use of laboratory animals in genetic toxicology. Food Chem Toxicol 2021; 154:112355. [PMID: 34147571 DOI: 10.1016/j.fct.2021.112355] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 06/11/2021] [Accepted: 06/13/2021] [Indexed: 01/22/2023]
Abstract
The inadequate representation of enzymes which catalyze the activation/detoxification of xenobiotics in cells that are currently used in genotoxicity testing of chemicals leads to a high number of false positive results and the number of follow up studies with rodents could be reduced by use of more reliable in vitro models. We found earlier that several xenobiotic drug metabolizing enzymes are represented in the human derived liver cell line Huh6 and developed a protocol for micronucleus (MN) experiments which is in agreement with the current OECD guideline. This protocol was used to test 23 genotoxic and non-genotoxic reference chemicals; based on these results and of earlier findings (with 9 chemicals) we calculated the predictive value of the assay for the detection of genotoxic carcinogens. We found a sensitivity of 80% and a specificity of 94% for a total number of 32 chemicals; comparisons with results obtained with other in vitro assays show that the validity of MN tests with Huh6 is higher as that of other experimental models. These results are promising and indicate that the use of Huh6 cells in genetic toxicology may contribute to the reduction of the use of laboratory rodents; further experimental work to confirm this assumption is warranted.
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Affiliation(s)
- Miroslav Mišík
- Institute of Cancer Research, Medical University of Vienna, Vienna, Austria
| | - Armen Nersesyan
- Institute of Cancer Research, Medical University of Vienna, Vienna, Austria
| | - Michael Kment
- Institute of Cancer Research, Medical University of Vienna, Vienna, Austria
| | - Benjamin Ernst
- Institute of Cancer Research, Medical University of Vienna, Vienna, Austria
| | - Tahereh Setayesh
- Institute of Cancer Research, Medical University of Vienna, Vienna, Austria
| | - Franziska Ferk
- Institute of Cancer Research, Medical University of Vienna, Vienna, Austria
| | - Klaus Holzmann
- Institute of Cancer Research, Medical University of Vienna, Vienna, Austria
| | - Georg Krupitza
- Department of Pathology, Medical University of Vienna, Vienna, 1090, Austria
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18
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Zani C, Donato F, Ceretti E, Pedrazzani R, Zerbini I, Gelatti U, Feretti D. Genotoxic Activity of Particulate Matter and In Vivo Tests in Children Exposed to Air Pollution. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18105345. [PMID: 34067860 PMCID: PMC8156021 DOI: 10.3390/ijerph18105345] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 05/10/2021] [Accepted: 05/15/2021] [Indexed: 11/16/2022]
Abstract
The aim of this paper was to investigate the relationship between micronuclei and DNA damage in children's buccal mucosa cells and the genotoxicity and mutagenicity of the different sized fractions of particulate matter as well as the concentration of PAHs (polycyclic aromatic hydrocarbons) and metals in particulate matter. Air particulate matter was collected by high volume samplers located near the schools attended by the children on the same days of biological samplings. The mutagenic activity was assessed in different cells in in vitro tests (Ames test on bacteria and comet test on leukocytes). Our study showed weak positive correlations between (a) the mutagenicity of the PM0.5 fraction and PAHs and (b) the micronuclei test of children's buccal cells and PAHs detected in PM0.5 and PM0.5-3 fractions. A positive correlation was also found between in vitro comet test on leukocytes and PAHs in the PM3-10 fraction. No correlation was observed for metal concentrations in each PM fraction.
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Affiliation(s)
- Claudia Zani
- Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, 11 Viale Europa, 25123 Brescia, Italy; (C.Z.); (E.C.); (I.Z.); (U.G.); (D.F.)
| | - Francesco Donato
- Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, 11 Viale Europa, 25123 Brescia, Italy; (C.Z.); (E.C.); (I.Z.); (U.G.); (D.F.)
- Correspondence: ; Tel.: +39-030-3717689
| | - Elisabetta Ceretti
- Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, 11 Viale Europa, 25123 Brescia, Italy; (C.Z.); (E.C.); (I.Z.); (U.G.); (D.F.)
| | - Roberta Pedrazzani
- Department of Mechanical and Industrial Engineering, University of Brescia, 38 via Branze, 25123 Brescia, Italy;
| | - Ilaria Zerbini
- Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, 11 Viale Europa, 25123 Brescia, Italy; (C.Z.); (E.C.); (I.Z.); (U.G.); (D.F.)
| | - Umberto Gelatti
- Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, 11 Viale Europa, 25123 Brescia, Italy; (C.Z.); (E.C.); (I.Z.); (U.G.); (D.F.)
| | - Donatella Feretti
- Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, 11 Viale Europa, 25123 Brescia, Italy; (C.Z.); (E.C.); (I.Z.); (U.G.); (D.F.)
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19
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Pamphlett R, Doble PA, Bishop DP. The Prevalence of Inorganic Mercury in Human Kidneys Suggests a Role for Toxic Metals in Essential Hypertension. TOXICS 2021; 9:67. [PMID: 33801008 PMCID: PMC8004013 DOI: 10.3390/toxics9030067] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 03/16/2021] [Accepted: 03/17/2021] [Indexed: 02/06/2023]
Abstract
The kidney plays a dominant role in the pathogenesis of essential hypertension, but the initial pathogenic events in the kidney leading to hypertension are not known. Exposure to mercury has been linked to many diseases including hypertension in epidemiological and experimental studies, so we studied the distribution and prevalence of mercury in the human kidney. Paraffin sections of kidneys were available from 129 people ranging in age from 1 to 104 years who had forensic/coronial autopsies. One individual had injected himself with metallic mercury, the other 128 were from varied clinicopathological backgrounds without known exposure to mercury. Sections were stained for inorganic mercury using autometallography. Laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) was used on six samples to confirm the presence of autometallography-detected mercury and to look for other toxic metals. In the 128 people without known mercury exposure, mercury was found in: (1) proximal tubules of the cortex and Henle thin loops of the medulla, in 25% of kidneys (and also in the man who injected himself with mercury), (2) proximal tubules only in 16% of kidneys, and (3) Henle thin loops only in 23% of kidneys. The age-related proportion of people who had any mercury in their kidney was 0% at 1-20 years, 66% at 21-40 years, 77% at 41-60 years, 84% at 61-80 years, and 64% at 81-104 years. LA-ICP-MS confirmed the presence of mercury in samples staining with autometallography and showed cadmium, lead, iron, nickel, and silver in some kidneys. In conclusion, mercury is found commonly in the adult human kidney, where it appears to accumulate in proximal tubules and Henle thin loops until an advanced age. Dysfunctions of both these cortical and medullary regions have been implicated in the pathogenesis of essential hypertension, so these findings suggest that further studies of the effects of mercury on blood pressure are warranted.
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Affiliation(s)
- Roger Pamphlett
- Discipline of Pathology, Brain and Mind Centre, Sydney Medical School, The University of Sydney, Sydney 2050, Australia
- Department of Neuropathology, Royal Prince Alfred Hospital, Sydney 2050, Australia
| | - Philip A. Doble
- Elemental Bio-Imaging Facility, School of Mathematical and Physical Sciences, University of Technology Sydney, Sydney 2007, Australia; (P.A.D.); (D.P.B.)
| | - David P. Bishop
- Elemental Bio-Imaging Facility, School of Mathematical and Physical Sciences, University of Technology Sydney, Sydney 2007, Australia; (P.A.D.); (D.P.B.)
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Pamphlett R, Doble PA, Bishop DP. Mercury in the human thyroid gland: Potential implications for thyroid cancer, autoimmune thyroiditis, and hypothyroidism. PLoS One 2021; 16:e0246748. [PMID: 33561145 PMCID: PMC7872292 DOI: 10.1371/journal.pone.0246748] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 01/25/2021] [Indexed: 01/08/2023] Open
Abstract
Objective Mercury and other toxic metals have been suggested to be involved in thyroid disorders, but the distribution and prevalence of mercury in the human thyroid gland is not known. We therefore used two elemental bio-imaging techniques to look at the distribution of mercury and other toxic metals in the thyroid glands of people over a wide range of ages. Materials and methods Formalin-fixed paraffin-embedded thyroid tissue blocks were obtained from 115 people aged 1–104 years old, with varied clinicopathological conditions, who had thyroid samples removed during forensic/coronial autopsies. Seven-micron sections from these tissue blocks were used to detect intracellular inorganic mercury using autometallography. The presence of mercury was confirmed using laser ablation-inductively coupled plasma-mass spectrometry which can detect multiple elements. Results Mercury was found on autometallography in the thyroid follicular cells of 4% of people aged 1–29 years, 9% aged 30–59 years, and 38% aged 60–104 years. Laser ablation-inductively coupled plasma-mass spectrometry confirmed the presence of mercury in samples staining with autometallography, and detected cadmium, lead, iron, nickel and silver in selected samples. Conclusions The proportion of people with mercury in their thyroid follicular cells increases with age, until it is present in over one-third of people aged 60 years and over. Other toxic metals in thyroid cells could enhance mercury toxicity. Mercury can trigger genotoxicity, autoimmune reactions, and oxidative damage, which raises the possibility that mercury could play a role in the pathogenesis of thyroid cancers, autoimmune thyroiditis, and hypothyroidism.
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Affiliation(s)
- Roger Pamphlett
- Discipline of Pathology, Sydney Medical School, Brain and Mind Centre, The University of Sydney, Sydney, New South Wales, Australia
- Department of Neuropathology, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia
- * E-mail:
| | - Philip A. Doble
- Elemental Bio-Imaging Facility, School of Mathematical and Physical Sciences, University of Technology Sydney, Sydney, New South Wales, Australia
| | - David P. Bishop
- Elemental Bio-Imaging Facility, School of Mathematical and Physical Sciences, University of Technology Sydney, Sydney, New South Wales, Australia
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Galeano-Páez C, Espitia-Pérez P, Jimenez-Vidal L, Pastor-Sierra K, Salcedo-Arteaga S, Hoyos-Giraldo LS, Gioda A, Saint'Pierre TD, García SC, Brango H, Espitia-Pérez L. Dietary exposure to mercury and its relation to cytogenetic instability in populations from "La Mojana" region, northern Colombia. CHEMOSPHERE 2021; 265:129066. [PMID: 33293049 DOI: 10.1016/j.chemosphere.2020.129066] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 11/13/2020] [Accepted: 11/18/2020] [Indexed: 06/12/2023]
Abstract
Fish consumption and chronic exposure to low doses of mercury (Hg) seems to activate several molecular mechanisms leading to carcinogenic and/or teratogenic processes. However, Hg genotoxic effects on humans are not completely described. In the present study, we assessed cytogenetic damage in isolated human peripheral lymphocytes using the cytokinesis-block micronucleus cytome assay (CBMN-Cyt), micronucleus formation with anti-kinetochore antibody (CREST staining), levels of total Hg in hair (T-Hg), fish consumption, and estimated Hg dose. The study comprised 39 non-exposed, and 73 residents from La Mojana region, an area with a well-documented Hg contamination. Data showed a significant increase in micronuclei (MNBN), nucleoplasmic bridges (NPB), and necrotic and apoptotic cell frequencies in residents of "La Mojana." The overall mean T-Hg level in hair for exposed residents was 1.12 ± 0.94 mg kg-1 and 0.15 ± 0.05 in individuals from the reference area. Approximately 40% of analyzed individuals showed T-Hg levels that exceeded US Environmental Protection Agency (USEPA) reference dose. Increased T-Hg levels in hair were related to increased MNBN frequencies and high fish consumption. Other cellular markers, such as necrotic and apoptotic cell frequencies, were also correlated with high fish intake and T-Hg contents. Results of the CREST staining demonstrated that in vivo exposure to Hg induces genetic instability by chromosome fragment loss (clastogenic). Additionally, a high average intake of some fish species, particularly with carnivorous habits like Caquetaia kraussii, Hoplias malabaricus, and Sorubin cuspicaudus, seems to increase MNBN frequencies significantly.
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Affiliation(s)
- Claudia Galeano-Páez
- Facultad de Ciencias de La Salud, Laboratorio de Investigación Biomédica y Biología Molecular, Universidad Del Sinú, Montería, Córdoba, Colombia
| | - Pedro Espitia-Pérez
- Facultad de Ciencias de La Salud, Laboratorio de Investigación Biomédica y Biología Molecular, Universidad Del Sinú, Montería, Córdoba, Colombia.
| | - Luisa Jimenez-Vidal
- Facultad de Ciencias de La Salud, Laboratorio de Investigación Biomédica y Biología Molecular, Universidad Del Sinú, Montería, Córdoba, Colombia
| | - Karina Pastor-Sierra
- Facultad de Ciencias de La Salud, Laboratorio de Investigación Biomédica y Biología Molecular, Universidad Del Sinú, Montería, Córdoba, Colombia
| | - Shirley Salcedo-Arteaga
- Facultad de Ciencias de La Salud, Laboratorio de Investigación Biomédica y Biología Molecular, Universidad Del Sinú, Montería, Córdoba, Colombia
| | - Luz Stella Hoyos-Giraldo
- Departamento de Biología, Grupo de Investigación en Genética Toxicológica y Citogenética, Facultad de Ciencias Naturales y Exactas de La Educación, Universidad Del Cauca, Popayán, Cauca, Colombia
| | - Adriana Gioda
- Departamento de Química, Pontifícia Universidade Católica Do Rio de Janeiro (PUC-Rio), Rio de Janeiro, Rio de Janeiro, Brazil
| | - Tatiana Dillenburg Saint'Pierre
- Departamento de Química, Pontifícia Universidade Católica Do Rio de Janeiro (PUC-Rio), Rio de Janeiro, Rio de Janeiro, Brazil
| | - Solange Cristina García
- Laboratório de Toxicologia (LATOX), Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Hugo Brango
- Departamento de Matemáticas y Estadística, Facultad de Ciencias Básicas, Universidad de Córdoba, Montería, Córdoba, Colombia
| | - Lyda Espitia-Pérez
- Facultad de Ciencias de La Salud, Laboratorio de Investigación Biomédica y Biología Molecular, Universidad Del Sinú, Montería, Córdoba, Colombia.
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Phytochemicals with Added Value from Morella and Myrica Species. Molecules 2020; 25:molecules25246052. [PMID: 33371425 PMCID: PMC7767459 DOI: 10.3390/molecules25246052] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 12/14/2020] [Accepted: 12/17/2020] [Indexed: 12/17/2022] Open
Abstract
Terrestrial plants, due to their sessile nature, are highly exposed to environmental pressure and therefore need to produce very effective molecules that enable them to survive all the threats. Myrica and Morella (Myricaceae) are taxonomically close genera, which include species of trees or shrubs with edible fruits that exhibit relevant uses in traditional medicine. For instance, in Chinese or Japanese folk medicine, they are used to treat diarrhea, digestive problems, headache, burns, and skin diseases. A wide array of compounds isolated from different parts of Myrica and/or Morella species possess several biological activities, like anticancer, antidiabetic, anti-obesity, and cardio-/neuro-/hepatoprotective activities, both in vitro and in vivo, with myricanol, myricitrin, quercitrin, and betulin being the most promising. There are still many other compounds isolated from both genera whose biological activities have not been evaluated, which represents an excellent opportunity to discover new applications for those compounds and valorize Morella/Myrica species.
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Pamphlett R, Colebatch AJ, Doble PA, Bishop DP. Mercury in Pancreatic Cells of People with and without Pancreatic Cancer. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17238990. [PMID: 33276658 PMCID: PMC7731371 DOI: 10.3390/ijerph17238990] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 11/27/2020] [Accepted: 11/28/2020] [Indexed: 12/12/2022]
Abstract
Toxic metals have been implicated in the pathogenesis of pancreatic cancer. Human exposure to mercury is widespread, but it is not known how often mercury is present in the human pancreas and which cells might contain mercury. We therefore aimed to determine, in people with and without pancreatic cancer, the distribution and prevalence of mercury in pancreatic cells. Paraffin-embedded sections of normal pancreatic tissue were obtained from pancreatectomy samples of 45 people who had pancreatic adenocarcinoma, and from autopsy samples of 38 people without pancreatic cancer. Mercury was identified using two methods of elemental bio-imaging: (1) With autometallography, inorganic mercury was seen in islet cells in 14 of 30 males (47%) with pancreatic cancer compared to two of 17 males (12%) without pancreatic cancer (p = 0.024), and in 10 of 15 females (67%) with pancreatic cancer compared to four of 21 females (19%) without pancreatic cancer (p = 0.006). Autometallographic mercury was present in acinar cells in 24% and in periductal cells in 11% of people with pancreatic cancer, but not in those without pancreatic cancer. (2) Laser ablation-inductively coupled plasma-mass spectrometry confirmed the presence of mercury in islets that stained with autometallography and detected cadmium, lead, chromium, iron, nickel and aluminium in some samples. In conclusion, the genotoxic metal mercury is found in normal pancreatic cells in more people with, than without, pancreatic cancer. These findings support the hypothesis that toxic metals such as mercury contribute to the pathogenesis of pancreatic cancer.
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Affiliation(s)
- Roger Pamphlett
- Discipline of Pathology, Brain and Mind Centre, Sydney Medical School, The University of Sydney, Sydney 2050, Australia
- Department of Neuropathology, Royal Prince Alfred Hospital, Sydney 2050, Australia
- Correspondence:
| | - Andrew J. Colebatch
- Department of Tissue Pathology and Diagnostic Oncology, Royal Prince Alfred Hospital, Sydney 2050, Australia;
| | - Philip A. Doble
- Elemental Bio-Imaging Facility, School of Mathematical and Physical Sciences, University of Technology Sydney, Sydney 2007, Australia; (P.A.D.); (D.P.B.)
| | - David P. Bishop
- Elemental Bio-Imaging Facility, School of Mathematical and Physical Sciences, University of Technology Sydney, Sydney 2007, Australia; (P.A.D.); (D.P.B.)
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Wang T, Tu Y, Zhang G, Gong S, Wang K, Zhang Y, Meng Y, Wang T, Li A, Christiani DC, Au W, Zhu Y, Xia ZL. Development of a benchmark dose for lead-exposure based on its induction of micronuclei, telomere length changes and hematological toxicity. ENVIRONMENT INTERNATIONAL 2020; 145:106129. [PMID: 32950787 DOI: 10.1016/j.envint.2020.106129] [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: 04/07/2020] [Revised: 08/05/2020] [Accepted: 09/09/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Excessive lead exposure is associated with adverse health effects. However, there is a lack of systematic investigation using large populations to ascertain acceptable exposure limits. OBJECTIVES Our study was aimed to identify human exposure-response relationships between lead exposure and health-related outcomes, and to determine a benchmark dose (BMD). METHODS A total of 1896 participants from a lead-acid battery plant were recruited. Blood lead levels (BLLs) were detected for all participants. Hematological parameters (n = 1896), micronuclei (MN) frequencies (n = 934), and relative telomere length (rTL) (n = 757) were also determined. Multivariate linear/Poisson regression analyses were performed to examine associations between BLLs and these health outcomes. Restricted cubic splines were used to identify dose-response relationships. Three BMD approaches were used to calculate BMD and its 95% lower confidence limit (BMDL). RESULTS Among all participants, BLLs show a right-skewed distribution (median, 185.40 μg/L; 25th - 75th percentile, 104.63-271.70 μg/L). There existed significant differences for red blood cell (RBC), hemoglobin (Hb), MN and rTL among different BLL dose groups. After adjusting for possible confounders, all indicators were significantly associated with BLLs. Restricted cubic splines show that there were linear dose-response relationships for RBC and Hb with BLLs, while non-linear for MN and rTL. Results from the three BMD approaches indicate that the dichotomous models were better than continuous models to calculate BMD and BMDL of BLLs. The conservative BMDL obtained from RBC data was 135 for total, 104 for male and 175 μg/L for female. The corresponding BMDL obtained from Hb data was 105 for total, 116 for male and 70 μg/L for female. As for MN data, the BMDL estimate was 66 for total, 69 for male and 64 μg/L for female. Finally, the BMDL from rTL data was 35 for total, 32 for male and 43 μg/L for female. CONCLUSIONS Our data show significant dose-response relationships between lead exposure and expressions of hematological toxicity and genotoxicity. The new BMDLs of 135 and 105 μg/L based on RBC and Hb, and even more strict level of 66 and 35 μg/L based on MN and rTL are lower than current exposure limits in China. Therefore, the four values can be considered as novel exposure limits. In addition, sex effect should be taken into account when setting occupational health standard. Considering that different biomarkers have different sensitivities, better understanding their relationships will certainly improve the current emphasis on precision health risk assessment.
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Affiliation(s)
- Tuanwei Wang
- Department of Occupational Health & Toxicology, School of Public Health, Shanghai Medical College of Fudan University, 130 Dongan Road, Shanghai 200032, China
| | - Yuting Tu
- Department of Occupational Health & Toxicology, School of Public Health, Shanghai Medical College of Fudan University, 130 Dongan Road, Shanghai 200032, China
| | - Guanghui Zhang
- Department of Occupational & Environmental Health, School of Public Health, Xinxiang Medical University, 601 Jinsui Road, Xinxiang 453003, Henan Province, China
| | - Shiyang Gong
- Department of Occupational Health & Toxicology, School of Public Health, Shanghai Medical College of Fudan University, 130 Dongan Road, Shanghai 200032, China
| | - Kan Wang
- Department of Occupational Health & Toxicology, School of Public Health, Shanghai Medical College of Fudan University, 130 Dongan Road, Shanghai 200032, China
| | - Yunxia Zhang
- Department of Occupational Health & Toxicology, School of Public Health, Shanghai Medical College of Fudan University, 130 Dongan Road, Shanghai 200032, China
| | - Yu Meng
- Department of Occupational Health & Toxicology, School of Public Health, Shanghai Medical College of Fudan University, 130 Dongan Road, Shanghai 200032, China
| | - Tongshuai Wang
- Department of Occupational Health & Toxicology, School of Public Health, Shanghai Medical College of Fudan University, 130 Dongan Road, Shanghai 200032, China
| | - Anqi Li
- Department of Occupational Health & Toxicology, School of Public Health, Shanghai Medical College of Fudan University, 130 Dongan Road, Shanghai 200032, China
| | - David C Christiani
- Environmental Medicine and Epidemiology Program, Department of Environmental Health, Harvard TH Chan School of Public Health, Boston, MA, USA
| | - William Au
- University of Medicine, Pharmacy, Science and Technology, Targu Mures, Romania; University of Texas Medical Branch, Galveston, TX, USA
| | - Yiliang Zhu
- Division of Epidemiology, Biostatistics, and Preventive Medicine, School of Medicine, University of New Mexico, USA.
| | - Zhao-Lin Xia
- Department of Occupational Health & Toxicology, School of Public Health, Shanghai Medical College of Fudan University, 130 Dongan Road, Shanghai 200032, China.
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25
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Qin HM, Herrera D, Liu DF, Chen CQ, Nersesyan A, Mišík M, Knasmueller S. Genotoxic properties of materials used for endoprostheses: Experimental and human data. Food Chem Toxicol 2020; 145:111707. [PMID: 32889016 DOI: 10.1016/j.fct.2020.111707] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 08/13/2020] [Accepted: 08/22/2020] [Indexed: 12/28/2022]
Abstract
Approximately 2 million endoprostheses are implanted annually and metal ions as well as particles are released into the body from the materials which are used. This review describes the results of studies concerning genotoxic damage caused by artificial joints. DNA damage leads to various adverse long-term health effects in humans including cancer. Experiments with mammalian cells showed that metal ions and particles from orthopedic materials cause DNA damage. Induction of chromosomal aberrations (CA) was found in several in vitro experiments and in studies with rodents with metals from orthopedic materials. Human studies focused mainly on induction of CA (7 studies). Only few investigations (4) concerned sister chromatid exchanges, oxidative DNA damage (2) and micronucleus formation (1). CA are a reliable biomarker for increased cancer risks in humans) and were increased in all studies in patients with artificial joints. No firm conclusion can be drawn at present if the effects in humans are due to oxidative stress and if dissolved metal ions or release particles play a role. Our findings indicate that patients with artificial joints may have increased cancer risks due to damage of the genetic material. Future studies should be performed to identify safe materials and to study the molecular mechanisms in detail.
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Affiliation(s)
- Hong-Min Qin
- Hip Surgery of Orthopedic Hospital, Affiliated Hospital of Panzhihua University, Panzhihua, 617000, Sichuan Province, China
| | - Denise Herrera
- Institute of Cancer Research, Department of Internal Medicine I, Medical University of Vienna, 1090, Borschkegasse 8A, Vienna, Austria
| | - Dian-Feng Liu
- Hip Surgery of Orthopedic Hospital, Affiliated Hospital of Panzhihua University, Panzhihua, 617000, Sichuan Province, China
| | - Chao-Qian Chen
- Hip Surgery of Orthopedic Hospital, Affiliated Hospital of Panzhihua University, Panzhihua, 617000, Sichuan Province, China
| | - Armen Nersesyan
- Institute of Cancer Research, Department of Internal Medicine I, Medical University of Vienna, 1090, Borschkegasse 8A, Vienna, Austria
| | - Miroslav Mišík
- Institute of Cancer Research, Department of Internal Medicine I, Medical University of Vienna, 1090, Borschkegasse 8A, Vienna, Austria
| | - Siegfried Knasmueller
- Institute of Cancer Research, Department of Internal Medicine I, Medical University of Vienna, 1090, Borschkegasse 8A, Vienna, Austria.
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Martini CN, Sosa FN, Fuchs J, Vila MDC. Effect of lead on proliferation, oxidative stress and genotoxic damage of 3T3-L1 fibroblasts. Toxicol Res (Camb) 2020; 9:158-163. [PMID: 32670547 DOI: 10.1093/toxres/tfaa018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 03/04/2020] [Accepted: 04/07/2020] [Indexed: 11/14/2022] Open
Abstract
Lead (Pb) is an environmental and industrial contaminant that still represents a public health problem. In this paper, we investigated the effect of Pb on proliferation, lipid peroxidation and the number of micronucleated cells in exponentially growing 3T3-L1 fibroblasts, a cell line previously used to evaluate different environmental contaminants. We found that Pb (10 μM or higher) was able to inhibit proliferation of exponentially growing cells after 24-h treatment, which was evaluated by the MTT assay and cell counting in Neubauer chamber, but cell survival was not affected according to the trypan blue exclusion assay. On the other hand, Pb was able to increase lipid peroxidation and the number of micronucleated cells, which are indicative of oxidative stress and genotoxic damage respectively. We also found that removal of Pb after 24-h treatment allowed cells to recover proliferation. Our results indicate that Pb was able to induce oxidative stress and genotoxicity in this cell line under standardized conditions, which supports the involvement of Pb in similar effects observed in human exposed to this heavy metal. In addition, Pb inhibits proliferation of exponentially growing fibroblasts but cells resume proliferation after removal of this metal, which suggests that it is important to move away Pb-exposed individuals from the source of contamination.
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Affiliation(s)
- Claudia Noemi Martini
- Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellón 2, Ciudad Universitaria, 1428 Buenos Aires, Argentina
| | - Fernando Nicolás Sosa
- Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellón 2, Ciudad Universitaria, 1428 Buenos Aires, Argentina
| | - Julio Fuchs
- Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), CONICET-Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - María Del Carmen Vila
- Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), CONICET-Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
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27
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Maniero MÁ, Wuilloud RG, Callegari EA, Smichowski PN, Fanelli MA. Metalloproteomics analysis in human mammary cell lines treated with inorganic mercury. J Trace Elem Med Biol 2020; 58:126441. [PMID: 31812871 PMCID: PMC8061084 DOI: 10.1016/j.jtemb.2019.126441] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 11/19/2019] [Accepted: 11/22/2019] [Indexed: 11/23/2022]
Abstract
The interest in inorganic Hg toxicity and carcinogenicity has been pointed to target organs such as kidney, brain or placenta, but only a few studies have focused on the mammary gland. In this work, analytical combination techniques (SDS-PAGE followed by CV-AFS, and nanoUPLC-ESI-MS/MS) were used to determine proteins that could bind Hg in three human mammary cell lines. Two of them were tumorigenic (MCF-7 and MDA-MB-231) and the other one was the non-tumorigenic cell line (MCF-10A). There are no studies that provide this kind of information in breast cell lines with IHg treatment. Previously, we described the viability, uptake and the subcellular distribution of Hg in human breast cells and analysis of RNA-seq about the genes that encode proteins which are related to cytotoxicity of Hg. This work provides important protein candidates for further studies of Hg toxicity in the mammary gland, thus expanding our understanding of how environmental contaminants might affect tumor progression and contribute with future therapeutic methods.
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Affiliation(s)
- Mariángeles Ávila Maniero
- Laboratorio de Química Analítica para Investigación y Desarrollo (QUIANID), Instituto Interdisciplinario de Ciencias Básicas, Universidad Nacional de Cuyo, CONICET, Facultad de Ciencias Exactas y Naturales, Padre J. Contreras 1300, 5500, Mendoza, Argentina; Facultad de Farmacia y Bioquímica, Universidad Juan Agustín Maza, Lateral Sur del Acceso Este 2245, M5519, Guaymallén, Mendoza, Argentina
| | - Rodolfo G Wuilloud
- Laboratorio de Química Analítica para Investigación y Desarrollo (QUIANID), Instituto Interdisciplinario de Ciencias Básicas, Universidad Nacional de Cuyo, CONICET, Facultad de Ciencias Exactas y Naturales, Padre J. Contreras 1300, 5500, Mendoza, Argentina.
| | - Eduardo A Callegari
- BRIN-USDS SOM Proteomics Facility, University of South Dakota, 414 E Clark St, Vermillion, SD, 57069, USA
| | - Patricia N Smichowski
- Comisión Nacional de Energía Atómica, Gerencia Química, CONICET, Av. Gral. Paz 1499, B1650 Villa Maipú, Buenos Aires, Argentina
| | - Mariel A Fanelli
- Laboratorio de Oncología, Instituto de Medicina y Biología Experimental de Cuyo (IMBECU-CONICET), Av. Dr. Adrian Ruiz Leal, Mendoza, Argentina
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28
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Heavy metal and pesticide exposure: A mixture of potential toxicity and carcinogenicity. CURRENT OPINION IN TOXICOLOGY 2020. [DOI: 10.1016/j.cotox.2020.01.001] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Pamphlett R, Satgunaseelan L, Kum Jew S, Doble PA, Bishop DP. Elemental bioimaging shows mercury and other toxic metals in normal breast tissue and in breast cancers. PLoS One 2020; 15:e0228226. [PMID: 32004334 PMCID: PMC6993973 DOI: 10.1371/journal.pone.0228226] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 01/09/2020] [Indexed: 02/07/2023] Open
Abstract
OBJECTIVE Exposure to toxic metals such as mercury has been proposed to be a risk factor for the development of breast cancer since some metals can promote genetic mutations and epigenetic changes. We sought to find what toxic metals are present in normal breast tissue and in the tumours of women who had mastectomies for invasive ductal breast carcinoma. MATERIALS AND METHODS Formalin-fixed paraffin-embedded blocks from mastectomies for breast carcinoma were examined from 50 women aged 34-69 years. Paraffin blocks selected for elemental analysis were from breast tissue not involved by carcinoma and from the carcinoma itself. Seven micrometer-thick sections were stained with autometallography to demonstrate the presence of mercury, and subjected to laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) to confirm the presence of mercury and to detect other toxic metals. RESULTS Autometallography-detected mercury was seen in intraductal secretions and some luminal epithelial cells of normal breast lobules in 26 (55%) of the 47 samples where lobules were present, and in 10 (23%) of carcinomas from the 44 samples where carcinoma was present. In eight samples ductal carcinoma in situ was present and one of these contained mercury. LA-ICP-MS confirmed the presence of mercury in samples that stained with autometallography, and detected lead, iron, nickel, aluminium, chromium and cadmium in some samples. CONCLUSIONS Mercury was present in normal breast lobules in more than half of mastectomy samples that contained an invasive carcinoma, and in a smaller proportion of carcinomas and ductal carcinomas in situ. Other toxic metals that may interact synergistically with mercury could be detected in some samples. These findings do not provide direct evidence that toxic metals such as mercury play a role in the pathogenesis of breast cancer, but suggest that future molecular biological investigations on the role of toxic metals in breast cancer are warranted.
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Affiliation(s)
- Roger Pamphlett
- Discipline of Pathology, Sydney Medical School, Brain and Mind Centre, The University of Sydney, Sydney, New South Wales, Australia
- Department of Neuropathology, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia
- * E-mail:
| | - Laveniya Satgunaseelan
- Department of Tissue Pathology and Diagnostic Oncology, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia
| | - Stephen Kum Jew
- Discipline of Pathology, Sydney Medical School, Brain and Mind Centre, The University of Sydney, Sydney, New South Wales, Australia
| | - Philip A. Doble
- Elemental Bio-Imaging Facility, School of Mathematical and Physical Sciences, University of Technology Sydney, Sydney, New South Wales, Australia
| | - David P. Bishop
- Elemental Bio-Imaging Facility, School of Mathematical and Physical Sciences, University of Technology Sydney, Sydney, New South Wales, Australia
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Forte IM, Indovina P, Costa A, Iannuzzi CA, Costanzo L, Marfella A, Montagnaro S, Botti G, Bucci E, Giordano A. Blood screening for heavy metals and organic pollutants in cancer patients exposed to toxic waste in southern Italy: A pilot study. J Cell Physiol 2019; 235:5213-5222. [DOI: 10.1002/jcp.29399] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 11/11/2019] [Indexed: 01/30/2023]
Affiliation(s)
- Iris Maria Forte
- Cell Biology and Biotherapy UnitIstituto Nazionale Tumori‐IRCCS‐Fondazione G. Pascale, I‐80131Napoli Italy
| | - Paola Indovina
- Sbarro Institute for Cancer Research and Molecular Medicine, Center for Biotechnology, College of Science and TechnologyTemple UniversityPhiladelphia Pennsylvania PA 19122 USA
| | - Aurora Costa
- Cell Biology and Biotherapy UnitIstituto Nazionale Tumori‐IRCCS‐Fondazione G. Pascale, I‐80131Napoli Italy
| | | | - Luigi Costanzo
- ASL Napoli 2 Nord, Via Lupoli, FrattamaggioreNaples Italy
| | - Antonio Marfella
- SS Farmacologia clinica e Farmacoeconomia‐Istituto Nazionale Tumori‐IRCCS‐Fondazione G. Pascale, I‐80131Napoli Italy
| | - Serena Montagnaro
- Department of Veterinary Medicine and Animal ProductionsUniversity of Naples “Federico II,”Napoli Italy
| | - Gerardo Botti
- Scientific DirectionIstituto Nazionale Tumori‐IRCCS‐Fondazione G. Pascale, I‐80131Napoli Italy
| | - Enrico Bucci
- Sbarro Institute for Cancer Research and Molecular Medicine, Center for Biotechnology, College of Science and TechnologyTemple UniversityPhiladelphia Pennsylvania PA 19122 USA
| | - Antonio Giordano
- Sbarro Institute for Cancer Research and Molecular Medicine, Center for Biotechnology, College of Science and TechnologyTemple UniversityPhiladelphia Pennsylvania PA 19122 USA
- Department of Medical BiotechnologiesUniversity of Siena Italy
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Kocadal K, Alkas FB, Battal D, Saygi S. Cellular pathologies and genotoxic effects arising secondary to heavy metal exposure: A review. Hum Exp Toxicol 2019; 39:3-13. [DOI: 10.1177/0960327119874439] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Environmental pollution is significant and oftentimes hazardous in the areas, where mining, foundries and smelters and other metallurgical operations are located. Systematic research on the chronic effects of metals started during the past century; nevertheless, it is evident that even today, there are large gaps in knowledge regarding the assessment of the health effects caused by environmental and occupational exposures to these metals. Heavy metals induce the production of reactive oxygen species (ROS) causing oxidative stress, make several repair-inhibiting cellular changes and alter the DNA repair processes. They favour the ‘false’ repairing of double-strand breaks (DSBs), propagate DNA mutations and induce carcinogenesis. A detailed literature search was performed using the MedLine/PubMed database. Depending on the mechanism of action, arsenicals can act as genotoxins, non-genotoxic agents and carcinogens. Cadmium can bind to proteins, reduce DNA repair, activate protein degradation, up-regulate cytokines and proto-oncogenes (c-fos, c-jun and c-myc), induce the expression of metallothionein, haeme-oxygenases, glutathione transferases, heat-shock proteins, acute-phase reactants and DNA polymerase β at lower concentrations. Inorganic mercury damages oxidative phosphorylation and electron transport pathways at the ubiquinone–cytochrome b5 locus and thus induces ROS production. Abandoned mining areas generate environmentally persistent waste. These specific sites urgently require maximally efficient and cheap remediation. This bears the need for methodologies employing green and sustainable remediation. Phytoremediation is important in that it is a prevalent in situ remediation technique. Its advantages include the use of solar energy, cost-effectiveness, easy operation, reduction in secondary contaminants, the use of biomass for biofuel production and low-cost adsorbents.
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Affiliation(s)
- K Kocadal
- Department of Toxicology, Faculty of Pharmacy, Near East University, Nicosia, Cyprus
| | - FB Alkas
- Department of Toxicology, Faculty of Pharmacy, Near East University, Nicosia, Cyprus
| | - D Battal
- Department of Toxicology, Faculty of Pharmacy, Near East University, Nicosia, Cyprus
- Department of Toxicology, Faculty of Pharmacy, Mersin University, Mersin, Turkey
| | - S Saygi
- Department of Toxicology, Faculty of Pharmacy, Near East University, Nicosia, Cyprus
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Alimba CG, Laide AW. Genotoxic and cytotoxic assessment of individual and composite mixture of cadmium, lead and manganese in Clarias gariepinus (Burchell 1822) using micronucleus assay. THE NUCLEUS 2019. [DOI: 10.1007/s13237-019-00289-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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Wang X, Jin P, Zhou Q, Liu S, Wang F, Xi S. Metal Biomonitoring and Comparative Assessment in Urine of Workers in Lead-Zinc and Steel-Iron Mining and Smelting. Biol Trace Elem Res 2019; 189:1-9. [PMID: 30054879 DOI: 10.1007/s12011-018-1449-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2018] [Accepted: 07/16/2018] [Indexed: 02/01/2023]
Abstract
The exposure of heavy metals (lead (Pb), cadmium (Cd), copper (Cu), nickel (Ni), and metalloid arsenicals) and their effects on workers' health from a lead-zinc mine (145 workers) and a steel smelting plant (162 workers) was investigated. Information on subject characteristics was obtained through a questionnaire. We determined the urinary levels of Pb, Cd, Cu, Ni, and arsenicals (including inorganic arsenic (iAs), monomethylarsonic acid (MMA), and dimethylarsinic acid (DMA), as were 8-hydroxydeoxyguanosine (8-OHdG) and cystatin C. Lead-zinc mine foundry workers had significantly higher concentrations of urinary Pb, Cd, Cu, Ni, iAs, and MMA than did steel smelting plant workers. Individuals who had consumed seafood in the previous 3 days had higher concentrations of urinary Ni than did individuals who had not consumed seafood. The urinary Cd concentrations in the two groups of factory workers may have been affected by daily smoking. There was no significant difference in urinary 8-OHdG between workers from the lead-zinc mine foundry and the steel smelting plant. Urinary Pb and Cd had significant positive linear dose-dependent effects on 8-OHdG. Urinary cystatin C, a sensitive biological indicator reflecting early renal damage, was found at higher levels in lead-zinc mine workers than in steel smelting plant workers. Binary logistic regression analysis showed that age and urinary Cd were significantly associated with urinary cystatin C. These results indicated that workers from lead-zinc mines may be exposed to higher levels of heavy metals which could lead to greater risk of kidney damage.
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Affiliation(s)
- Xiaoyan Wang
- Department of Environmental and Occupational Health, Liaoning Provincial Key Laboratory of Arsenic Biological Effect and Poisoning, School of Public Health, China Medical University, No. 77 Puhe Road, Shenyang North New Area, Shenyang, 110122, Liaoning Province, People's Republic of China
| | - Peiyu Jin
- Department of Environmental and Occupational Health, Liaoning Provincial Key Laboratory of Arsenic Biological Effect and Poisoning, School of Public Health, China Medical University, No. 77 Puhe Road, Shenyang North New Area, Shenyang, 110122, Liaoning Province, People's Republic of China
| | - Qing Zhou
- Department of Environmental and Occupational Health, Liaoning Provincial Key Laboratory of Arsenic Biological Effect and Poisoning, School of Public Health, China Medical University, No. 77 Puhe Road, Shenyang North New Area, Shenyang, 110122, Liaoning Province, People's Republic of China
| | - Shengnan Liu
- Department of Environmental and Occupational Health, Liaoning Provincial Key Laboratory of Arsenic Biological Effect and Poisoning, School of Public Health, China Medical University, No. 77 Puhe Road, Shenyang North New Area, Shenyang, 110122, Liaoning Province, People's Republic of China
| | - Fei Wang
- Department of Environmental and Occupational Health, Liaoning Provincial Key Laboratory of Arsenic Biological Effect and Poisoning, School of Public Health, China Medical University, No. 77 Puhe Road, Shenyang North New Area, Shenyang, 110122, Liaoning Province, People's Republic of China
| | - Shuhua Xi
- Department of Environmental and Occupational Health, Liaoning Provincial Key Laboratory of Arsenic Biological Effect and Poisoning, School of Public Health, China Medical University, No. 77 Puhe Road, Shenyang North New Area, Shenyang, 110122, Liaoning Province, People's Republic of China.
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Yadav B, Vishwakarma V, Kumar S, Aggarwal NK, Gupta R, Yadav A. Antigenotoxic effects of morin against lead induced genomic damage in cultured human peripheral blood lymphocytes. J Food Biochem 2019; 43:e12883. [PMID: 31353713 DOI: 10.1111/jfbc.12883] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Revised: 04/01/2019] [Accepted: 04/11/2019] [Indexed: 11/27/2022]
Abstract
Lead (Pb) is a well-known carcinogenic heavy metal. Exposure to Pb induces DNA damage by enhancing the generation of reactive oxygen species (ROS). One of the possible ways to shield DNA from this damage is to supply antioxidants that can remove free radicals generated by genotoxicants. Hence, the current study was designed to evaluate the antigenotoxic potential of a flavonoid compound; morin against Pb-induced genomic damage on cultured human peripheral blood lymphocytes (PBL). The effect of Pb or morin or their combination was evaluated on the DNA damage using comet and sister chromatid exchange (SCE) assays. The results indicated a significant (p < 0.05) increase in the SCE frequency and various comet parameters in a dose-dependent manner upon treatment with lead as compared to control in cultured PBL. Supplementation of morin along with Pb effectively negated DNA damage as measured by SCE frequency and comet parameters. PRACTICAL APPLICATIONS: Results of our current study suggest that the DNA damage induced by genotoxicants can be overcome by co-treatment with natural antioxidants, found in dietary supplements such as vegetables and fruits.
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Affiliation(s)
- Bharti Yadav
- Department of Biotechnology, Kurukshetra University, Kurukshetra, India
| | - Veena Vishwakarma
- Department of Biotechnology, Kurukshetra University, Kurukshetra, India
| | - Sunil Kumar
- Department of Biotechnology, Kurukshetra University, Kurukshetra, India
| | - Neeraj K Aggarwal
- Department of Microbiology, Kurukshetra University, Kurukshetra, India
| | - Ranjan Gupta
- Department of Biochemistry, Kurukshetra University, Kurukshetra, India
| | - Anita Yadav
- Department of Biotechnology, Kurukshetra University, Kurukshetra, India
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Cruz-Esquivel Á, Marrugo-Negrete J, Calao-Ramos C. Genetic damage in human populations at mining sites in the upper basin of the San Jorge River, Colombia. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:10961-10971. [PMID: 30788698 DOI: 10.1007/s11356-019-04527-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Accepted: 02/06/2019] [Indexed: 06/09/2023]
Abstract
Contamination with mining wastes affects the environmental health and public, especially the human populations that live in these environments. The aim of this study was to evaluate the genotoxicity and levels of mercury (Hg) and arsenic (As) in blood samples from human populations exposed to mining activities in the upper basin of the San Jorge River. A total of 100 individuals participated in the study, 50 as an exposed group (Bocas de Ure = 15 individuals, Mina el Alacrán = 19 individuals, Torno Rojo = 16 individuals) and 50 individuals participated as the control group. Hg and As contents in blood samples were analyzed with atomic absorption spectrophotometry. A comet assay in peripheral blood lymphocytes and a micronucleus (MN) cytome assay (BMCyt) in exfoliated buccal cells were used to assess the effects of exposure to heavy metals on human communities located in mining areas. Higher concentrations of Hg and As were observed in human populations located in mining areas. The comet assay and BMCyt data revealed DNA damage and cell death in human communities located in mining areas. A positive association between blood arsenic and genetic damage was found. These data confirm the public health risk of the population near mining sites. Our findings suggest that populations that live at sites close to mining activities have high contents of heavy metals and genotoxic effects, representing a risk to human health.
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Affiliation(s)
- Ángel Cruz-Esquivel
- Water, Applied and Environmental Chemistry Group, University of Córdoba, Cra 6 # 76-103, Montería, 354, Colombia.
| | - José Marrugo-Negrete
- Laboratory Toxicology and Environmental Management, University of Córdoba, Cra 6 # 76-103, Montería, 354, Colombia
| | - Clelia Calao-Ramos
- Laboratory Toxicology and Environmental Management, University of Córdoba, Cra 6 # 76-103, Montería, 354, Colombia
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36
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Lison D, Van Maele-Fabry G, Vral A, Vermeulen S, Bastin P, Haufroid V, Baeyens A. Absence of genotoxic impact assessed by micronucleus frequency in circulating lymphocytes of workers exposed to cadmium. Toxicol Lett 2019; 303:72-77. [DOI: 10.1016/j.toxlet.2018.12.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2018] [Revised: 12/10/2018] [Accepted: 12/28/2018] [Indexed: 12/16/2022]
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Budnik LT, Casteleyn L. Mercury pollution in modern times and its socio-medical consequences. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 654:720-734. [PMID: 30448663 DOI: 10.1016/j.scitotenv.2018.10.408] [Citation(s) in RCA: 95] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Revised: 10/29/2018] [Accepted: 10/29/2018] [Indexed: 05/27/2023]
Abstract
Mercury plays a critical role in serious health problems due to environmental or occupational exposures. Aquatic ecosystems are an essential component of the global biogeochemical cycle of mercury, as inorganic mercury can be converted to toxic methyl mercury in these environments and reemissions of elemental mercury rival anthropogenic mercury releases on a global scale. The history of the Minamata disease, a typical example of industrial pollution, has shown how corporate secrecy and ignorance on part of the health authorities may influence the devastating spread of environmental contamination and the progress of disease. While the Minamata Convention, in place since 2017, is aiming to lower mercury exposure and to prevent adverse effects, there are still knowledge gaps in the areas of global environmental mercury exposure. Areas of uncertainty in the global biogeochemical cycle of mercury include oxidation processes in the atmosphere, land-atmosphere and ocean-atmosphere cycling, and methylation processes in the ocean. Pollution related to climate change (especially in boreal and arctic regions), bioaccumulation and biomagnification of methyl mercury in the food chain, especially in fish and marine mammals, needs to be addressed in more detail. Information is lacking on numerous hidden contaminant exposures i.e. from globally applied traditional medicine, mercury containing skin creams and soaps, dental amalgam, ethyl mercury containing vaccines and latex paint additives, as well as on mercury releases from power plants, e-waste/fluorescent lamps, wildfire emissions, and global artisanal small-scale gold mining activities. Mercury occurs in various forms with different levels of toxicity. While much is already known and documented on the health effects of mercury, present knowledge and translation into preventive actions is still incomplete. Risks for long term health effects trough prolonged low dose exposure and trough cumulative exposures of various mercury forms should be further addressed. Preventive actions should include adequate human biomonitoring programs. Research data should be translated swiftly into management tools for local policy makers and health professionals, also paying attention at the major differences in mercury contamination across the globe.
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Affiliation(s)
- Lygia Therese Budnik
- University Medical Center Hamburg-Eppendorf, Institute for Occupational and Maritime Medicine, Translational Toxicology and Immunology Unit, Hamburg, Germany.
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38
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Roos-Muñoz S, Voltolina D, Aguilar-Juárez M, Abad-Rosales S, Bautista-Covarrubias JC, Bañuelos-Vargas MI, Soto-Jiménez MF, Frías-Espericueta MG. DNA Damage and Immunological Responses in the Whiteleg Shrimp (Litopenaeus vannamei) Exposed to Sublethal Levels of Mercury. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2019; 102:186-190. [PMID: 30600389 DOI: 10.1007/s00128-018-2528-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Accepted: 12/18/2018] [Indexed: 06/09/2023]
Abstract
Litopenaeus vannamei juveniles were exposed to sublethal levels (2.33-18.03 µg/L) of inorganic mercury. Time of exposure (0, 24 and 168 h) was a source of DNA damage. Mean comet tail length not changed significantly with mercury concentrations and exposure time, and this parameter cannot be used to assess DNA damage in this shrimp. Total hemocyte count showed a trend to decrease according to the increase of mercury concentrations, although no significant difference between treatments with mercury was observed. The phenoloxidase (PO) activity was not influenced by the time of exposure. At the end of the experiment, the PO in organisms exposed to 18.03 µg/L was different from the control. The time of exposure has a more important influence in superoxide dismutase than the concentration of mercury. According to these results, a suitable criterion of water quality for long-term exposure of L. vannamei should be lower than 2 µg/L of mercury.
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Affiliation(s)
- Sarahi Roos-Muñoz
- Posgrado en Ciencias en Recursos Acuáticos, Universidad Autónoma de Sinaloa, Ciudad Universitaria, Av. de los Deportes, CP 82017, Mazatlán, Sinaloa, Mexico
| | - Domenico Voltolina
- Centro de Investigaciones Biológicas del Noroeste, Laboratorio UAS-CIBNOR, A.P. 1132, CP 82000, Mazatlán, Sinaloa, Mexico
| | - Marisela Aguilar-Juárez
- Facultad de Ciencias del Mar, Universidad Autónoma de Sinaloa, Paseo Claussen S/N, Col. Los Pinos, CP 82000, Mazatlán, Sinaloa, Mexico
| | | | - Juan C Bautista-Covarrubias
- Unidad Académica Escuela Nacional de Ingeniería Pesquera, Universidad Autónoma de Nayarit, Bahía de Matanchén Km 12, CP 63776, San Blas, Nayarit, Mexico
| | - M Isaura Bañuelos-Vargas
- Facultad de Ciencias del Mar, Universidad Autónoma de Sinaloa, Paseo Claussen S/N, Col. Los Pinos, CP 82000, Mazatlán, Sinaloa, Mexico
| | - Martín F Soto-Jiménez
- Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Avenida Joel Montes Camarena S/N, CP 82040, Mazatlán, Sinaloa, Mexico
| | - Martín G Frías-Espericueta
- Facultad de Ciencias del Mar, Universidad Autónoma de Sinaloa, Paseo Claussen S/N, Col. Los Pinos, CP 82000, Mazatlán, Sinaloa, Mexico.
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Aldana JA, De Grandis RA, Nicolella H, Guissoni APP, Squarisi I, Arruda C, Ribeiro VP, Tavares DC, Barcelos GRM, Antunes LMG, Bastos JK. Evaluation of cytoprotective effects of compounds isolated from Copaifera langsdorffii Desf. against induced cytotoxicity by exposure to methylmercury and lead. Nat Prod Res 2019; 34:2528-2532. [DOI: 10.1080/14786419.2018.1543673] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
| | | | - Heloiza Nicolella
- Nucleus of Research in Sciences and Technology, University of Franca, Franca, Brazil
| | | | - Iara Squarisi
- Nucleus of Research in Sciences and Technology, University of Franca, Franca, Brazil
| | - Caroline Arruda
- Department of Pharmaceutical Sciences, University of São Paulo, Ribeirão Preto, Brazil
| | - Victor Pena Ribeiro
- Department of Pharmaceutical Sciences, University of São Paulo, Ribeirão Preto, Brazil
| | | | | | - Lusânia Maria Greggi Antunes
- Department of Clinical Toxicological and Bromatological Analyses, University of São Paulo, Ribeirão Preto, Brazil
| | - Jairo Kenupp Bastos
- Department of Pharmaceutical Sciences, University of São Paulo, Ribeirão Preto, Brazil
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40
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Franco de Diana D, Segovia Abreu J, Castiglioni Serafini D, Ortíz JF, Samaniego MJ, Aranda AC, Zamorano-Ponce E. Increased genetic damage found in waste picker women in a landfill in Paraguay measured by comet assay and the micronucleus test. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2018; 836:19-23. [DOI: 10.1016/j.mrgentox.2018.06.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Revised: 04/20/2018] [Accepted: 06/01/2018] [Indexed: 11/15/2022]
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Marimón-Bolívar W, Tejeda-Benítez L, Herrera AP. Removal of mercury (II) from water using magnetic nanoparticles coated with amino organic ligands and yam peel biomass. ACTA ACUST UNITED AC 2018. [DOI: 10.1016/j.enmm.2018.10.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Kirsch-Volders M, Fenech M, Bolognesi C. Validity of the Lymphocyte Cytokinesis-Block Micronucleus Assay (L-CBMN) as biomarker for human exposure to chemicals with different modes of action: A synthesis of systematic reviews. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2018; 836:47-52. [DOI: 10.1016/j.mrgentox.2018.05.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Revised: 04/06/2018] [Accepted: 05/07/2018] [Indexed: 10/17/2022]
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Lima LADO, Bittencourt LO, Puty B, Fernandes RM, Nascimento PC, Silva MCF, Alves-Junior SM, Pinheiro JDJV, Lima RR. Methylmercury Intoxication Promotes Metallothionein Response and Cell Damage in Salivary Glands of Rats. Biol Trace Elem Res 2018; 185:135-142. [PMID: 29332268 DOI: 10.1007/s12011-017-1230-9] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Accepted: 12/20/2017] [Indexed: 12/20/2022]
Abstract
Environmental and occupational mercury exposure is considered a major public health issue. Despite being well known that MeHg exposure causes adverse effects in several physiologic functions, MeHg effects on salivary glands still not completely elucidated. Here, we investigated the cellular MeHg-induced damage in the three major salivary glands (parotid, submandibular, and sublingual) of adult rats after chronic, systemic and low doses of MeHg exposure. Rats were exposed by 0.04 mg/kg/day over 60 days. After that, animals were euthanized and all three glands were collected. We evaluated total Hg accumulation, metallothionein I/II (MT I/II), α-smooth muscle actin (α-SMA), and cytokeratin 18 (CK18) immune expression. Our results have showed that MeHg is able to disrupt gland tissue and to induce a protective mechanism by MT I/II expression. We also showed that cell MT production is not enough to protect gland tissue against cellular structural damage seen by reducing marking of cytoskeletal proteins as CK18 and α-SMA. Our data suggest that chronic MeHg exposure in low-daily doses is able to induce cellular damage in rat salivary glands.
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Affiliation(s)
- Leidiane Alencar de Oliveira Lima
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Para, Street Augusto Correa N. 01, Guamá, Belém, Para, 66075-900, Brazil
| | - Leonardo Oliveira Bittencourt
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Para, Street Augusto Correa N. 01, Guamá, Belém, Para, 66075-900, Brazil
| | - Bruna Puty
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Para, Street Augusto Correa N. 01, Guamá, Belém, Para, 66075-900, Brazil
| | - Rafael Monteiro Fernandes
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Para, Street Augusto Correa N. 01, Guamá, Belém, Para, 66075-900, Brazil
| | - Priscila Cunha Nascimento
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Para, Street Augusto Correa N. 01, Guamá, Belém, Para, 66075-900, Brazil
| | - Marcia Cristina Freitas Silva
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Para, Street Augusto Correa N. 01, Guamá, Belém, Para, 66075-900, Brazil
| | | | | | - Rafael Rodrigues Lima
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Para, Street Augusto Correa N. 01, Guamá, Belém, Para, 66075-900, Brazil.
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Ahmad I, Khan B, Khan S, Khan MT, Schwab AP. Assessment of lead exposure among automobile technicians in Khyber Pakhtunkhwa, Pakistan. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 633:293-299. [PMID: 29574373 DOI: 10.1016/j.scitotenv.2018.03.160] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Revised: 03/12/2018] [Accepted: 03/15/2018] [Indexed: 06/08/2023]
Abstract
Exposure to Pb among automobile technicians in selected towns of Khyber Pakhtunkhwa Province, Pakistan, was studied using a questionnaire, biological sampling (blood, hair, nails), and analysis of Pb biomonitoring data across various subgroups of occupation, age, and years of exposure. The study population included exposed automobile technicians (n=50) and a control group (n=50). The automobile technicians were further stratified into 4 groups: mechanics, auto-body technicians, electricians, and painters. Mean Pb levels in biological samples of the automobile technicians were significantly higher than in the control group (P<0.01). The Pb concentrations (mean±standard deviation) in whole blood, hair, and nails of automobile technicians were 65.3±41.9μgdL-1, 23.6±11.2mgkg-1 and 29.7±14.5mgkg-1, respectively, whereas concentrations in the control group were 21.7±17.6μgdL-1, 4.8±3.4mgkg-1 and 7.2±3.9mgkg-1. Fifty two percent of the automobile technicians had blood levels >50μgdL-1, but only 14% of the control group exceeded this level. Considering that Pb blood levels of 50μgdL-1 exceed maximum concentrations recommended by leading public health organizations, appropriate measures should be taken to protect the welfare of the exposed automobile technicians and their families.
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Affiliation(s)
- Iqbal Ahmad
- Department of Environmental Sciences, University of Peshawar, 25120, Pakistan; Department of Soil and Crop Sciences, 2474 TAMU, College Station, TX 77843-2474, USA
| | - Bushra Khan
- Department of Environmental Sciences, University of Peshawar, 25120, Pakistan
| | - Sardar Khan
- Department of Environmental Sciences, University of Peshawar, 25120, Pakistan
| | | | - Arthur Paul Schwab
- Department of Soil and Crop Sciences, 2474 TAMU, College Station, TX 77843-2474, USA.
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Feng Y, Wu Y, Zhang J, Meng Q, Wang Q, Ma L, Ma X, Yang X. Ectopic expression of SaNRAMP3 from Sedum alfredii enhanced cadmium root-to-shoot transport in Brassica juncea. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 156:279-286. [PMID: 29567508 DOI: 10.1016/j.ecoenv.2018.03.031] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Revised: 03/05/2018] [Accepted: 03/07/2018] [Indexed: 06/08/2023]
Abstract
SaNRAMP3 gene cloned from a Zn/Cd hyperaccumulator Sedum alfredii was ectopicly expressed in Brassica juncea, a fast-growing and high-biomass crop plant. In a tissue culture experiment, transgenic plants were grown on MS medium with 0, 25, 50, 100, 200 μM Cd. It was shown that, at the same Cd treatment, the Cd tolerance of transgenic plants had no significant difference with those of wild-type plants (WT). However, the shoot Cd content and accumulation were improved significantly while the root Cd content and accumulation were descended significantly by SaNRAMP3 gene expression, which obviously enhanced the Cd root-to-shoot translocation factor (TF). In the hydroponic experiment, plants were cultured in nutrition solution with 0, 2.5, 25 μM Cd. Data showed that the Cd tolerance of transgenic plants had no significant difference with that of WT under the same Cd exposure. Whereas, the shoot Cd content and accumulation was increased 1.43-1.81 times and the TF was enhanced 3.09-3.51 times by SaNRAMP3 gene expression. Those results indicated that ectopic expression of SaNRAMP3 in B. juncea didn't lead to Cd sensitivity, but enhanced Cd root-to-shoot transport, so that increased shoot Cd accumulation. This study provided a possibility to improve phytoextraction efficiency of heavy metal through gene engineering.
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Affiliation(s)
- Ying Feng
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, People's Republic of China.
| | - Yingjie Wu
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Jie Zhang
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Qian Meng
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Qiong Wang
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Luyao Ma
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Xiaoxiao Ma
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Xiaoe Yang
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, People's Republic of China
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Liu X, Wu J, Shi W, Shi W, Liu H, Wu X. Lead Induces Genotoxicity via Oxidative Stress and Promoter Methylation of DNA Repair Genes in Human Lymphoblastoid TK6 Cells. Med Sci Monit 2018; 24:4295-4304. [PMID: 29933360 PMCID: PMC6045917 DOI: 10.12659/msm.908425] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Background Lead (Pb) is a widely used metal in modern industry and is regarded as a health hazard. Although lead-induced genotoxicity has been confirmed, the direct evidence that lead induces genotoxicity in human cells and its related mechanisms has not been fully elucidated. In this study, for the first time, we evaluated the genotoxicity induced by lead in human lymphoblastoid TK6 cells. Material/Methods The TK6 cells were incubated with various concentrations of Pb(Ac)2 for 6 h, 12 h, or 24 h. Cell viability was detected by CCK8 assay. Various biochemical markers were assessed by specific kits. Immunofluorescence assay was used to detect γ-H2AX foci formation. The promoter methylation was assessed by methylation-specific PCR. The protein levels were determined by Western blot assay. Results The results showed that after exposure to lead, cell viability was obviously decreased and γ-H2AX foci formation was significantly enhanced in TK6 cells. Moreover, the levels of 8-OHdG, ROS, MDA, and GSSG were increased, while the GSH level and SOD activity were decreased in lead-treated TK6 cells. The activation of the Nrf2-ARE signaling pathway was involved in lead-induced oxidative stress in TK6 cells. Finally, the expressions of DNA repair genes XRCC1, hOGG-1, BRCA1, and XPD were inhibited via enhancing their promoter methylation in TK6 cells after exposure to lead. Conclusions Taken together, our study provides the first published evidence that lead exposure results in DNA damage via promoting oxidative stress and the promoter methylation of DNA repair genes in human lymphoblastoid TK6 cells.
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Affiliation(s)
- Xiangquan Liu
- Department of Nutrition and Food Safety, School of Public Health, Fujian Medical University, Fuzhou, Fujian, China (mainland)
| | - Jingying Wu
- Department of Preventive Medicine, Fuzhou Center for Disease Control and Prevention, Fuzhou, Fujian, China (mainland)
| | - Wenyan Shi
- Department of Clinical Nutrition, Shenzhen Third People's Hospital, Shenzhen, Guangdong, China (mainland)
| | - Wenhua Shi
- Department of Occupational Health, Fuzhou Center for Disease Control and Prevention, Fuzhou, Fujian, China (mainland)
| | - Hekun Liu
- Department of Cell Biology and Genetics, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian, China (mainland)
| | - Xiaonan Wu
- Department of Nutrition and Food Safety, School of Public Health, Fujian Medical University, Fuzhou, Fujian, China (mainland)
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Abstract
PURPOSE OF REVIEW Recently, concerns have been raised with regard to the recommended doses of marine long-chain omega-3 polyunsaturated fatty acids (LC-omega-3 PUFAs) especially in relation to cancer risk and treatment. There is urgent need to clarify this point. This review considers the most recent evidence related to the potential risk of developing cancer with high LC-omega-3 PUFA intakes, and possible research strategies to better elucidate this matter. RECENT FINDINGS The latest published recommendations have still highlighted the usefulness of an increased dietary intake of LC-omega-3 PUFAs for the prevention of some cardiovascular diseases. However, LC-omega-3 PUFAs have been related to the potential development and progression of cancer, and considerable debate exists on this issue. SUMMARY The use of biomarkers reflecting the intake of LC-omega-3 PUFAs as cancer risk markers is discussed, as well as the possibility that the reported beneficial/deleterious effects may be confined to specific subpopulations on the basis of genetic, metabolic, and nutritional characteristics. Recent advances on new strategies for a safer intake of LC-omega-3 PUFAs will be considered, as their dietary sources may be contaminated by toxic/carcinogenic compounds. Potentially future directions in this important research area are also discussed.
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Affiliation(s)
- Simona Serini
- Istituto di Patologia Generale, Facoltà di Medicina e Chirurgia, Università Cattolica del S. Cuore, L.go F. Vito, Roma, Italia
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Tinkov AA, Filippini T, Ajsuvakova OP, Aaseth J, Gluhcheva YG, Ivanova JM, Bjørklund G, Skalnaya MG, Gatiatulina ER, Popova EV, Nemereshina ON, Vinceti M, Skalny AV. The role of cadmium in obesity and diabetes. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 601-602:741-755. [PMID: 28577409 DOI: 10.1016/j.scitotenv.2017.05.224] [Citation(s) in RCA: 167] [Impact Index Per Article: 23.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2017] [Revised: 05/23/2017] [Accepted: 05/24/2017] [Indexed: 06/07/2023]
Abstract
Multiple studies have shown an association between environmental exposure to hazardous chemicals including toxic metals and obesity, diabetes, and metabolic syndrome. At the same time, the existing data on the impact of cadmium exposure on obesity and diabetes are contradictory. Therefore, the aim of the present work was to review the impact of cadmium exposure and status on the risk and potential etiologic mechanisms of obesity and diabetes. In addition, since an effect of cadmium exposure on incidence of diabetes mellitus and insulin resistance was suggested by several epidemiologic studies, we carried out a meta-analysis of all studies assessing risk of prevalence and incidence of diabetes. By comparing the highest versus the lowest cadmium exposure category, we found a high risk of diabetes incidence (odds ratio=1.38, 95% confidence interval 1.12-1.71), which was higher for studies using urine as exposure assessment. On the converse, results of epidemiologic studies linking cadmium exposure and overweight or obesity are far less consistent and even conflicting, also depending on differences in exposure levels and the specific marker of exposure (blood, urine, hair, nails). In turn, laboratory studies demonstrated that cadmium adversely affects adipose tissue physiopathology through several mechanisms, thus contributing to increased insulin resistance and enhancing diabetes. However, intimate biological mechanisms linking Cd exposure with obesity and diabetes are still to be adequately investigated.
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Affiliation(s)
- Alexey A Tinkov
- Yaroslavl State University, Yaroslavl, Russia; Orenburg State Medical University, Orenburg, Russia; RUDN University, Moscow, Russia.
| | - Tommaso Filippini
- CREAGEN, Environmental, Genetic and Nutritional Epidemiology Research Center, University of Modena and Reggio Emilia, Modena, Italy
| | | | - Jan Aaseth
- Department of Public Health, Hedmark University of Applied Sciences, Elverum, Norway; Research Department, Innlandet Hospital Trust, Brumunddal, Norway
| | - Yordanka G Gluhcheva
- Institute of Experimental Morphology, Pathology and Anthropology with Museum, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Juliana M Ivanova
- Faculty of Medicine, Sofia University "St. Kliment Ohridski", Sofia, Bulgaria
| | - Geir Bjørklund
- Council for Nutritional and Environmental Medicine, Mo i Rana, Norway
| | | | - Eugenia R Gatiatulina
- Orenburg State Medical University, Orenburg, Russia; South-Ural State Medical University, Chelyabinsk, Russia
| | - Elizaveta V Popova
- Orenburg State Medical University, Orenburg, Russia; St Joseph University in Tanzania, St Joseph College of Health Sciences, Dar es salaam, Tanzania
| | | | - Marco Vinceti
- CREAGEN, Environmental, Genetic and Nutritional Epidemiology Research Center, University of Modena and Reggio Emilia, Modena, Italy
| | - Anatoly V Skalny
- Yaroslavl State University, Yaroslavl, Russia; RUDN University, Moscow, Russia; Orenburg State Pedagogical University, Orenburg, Russia
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49
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Gómez-Meda BC, Zúñiga-González GM, Sánchez-Orozco LV, Zamora-Perez AL, Rojas-Ramírez JP, Rocha-Muñoz AD, Sobrevilla-Navarro AA, Arellano-Avelar MA, Guerrero-de León AA, Armendáriz-Borunda JS, Sánchez-Parada MG. Buccal micronucleus cytome assay of populations under chronic heavy metal and other metal exposure along the Santiago River, Mexico. ENVIRONMENTAL MONITORING AND ASSESSMENT 2017; 189:522. [PMID: 28948473 DOI: 10.1007/s10661-017-6237-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Accepted: 09/20/2017] [Indexed: 06/07/2023]
Abstract
The Santiago River is one of the most contaminated rivers in Mexico, with heavy metal levels above the allowed limits. Scientific evidence indicates that chronic heavy metal exposure leads to cytogenotoxic effects. The aims of this study were to evaluate the genotoxic and cytotoxic effects of such exposure in buccal mucosa cells by micronucleus (MN) assay and to identify other nuclear abnormalities (NAs), such as nuclear buds (NBUDs), binucleated cells (BNs), pyknotic nuclei (PNs), karyorrhexis (KX), karyolysis (KL), and abnormally condensed chromatin (CC). Assays were performed on samples from four populations located alongside the Santiago River that are under chronic exposure to heavy metals and other metals (HMMs), and the results were compared with those of a population without exposure to HMMs. The exposed group showed increased frequencies of NAs (KX, CC, and KL), which are associated with cytotoxic damage, and NBUDs, which are associated with genotoxic damage. Increased frequencies of NBUDs and CC were observed in subjects from El Salto/Juanacatlán, Ocotlán, and Paso de Guadalupe, and an increase in KX frequency was observed in subjects from El Salto/Juanacatlán. Significant differences in KL frequency were observed in subjects from La Barca, El Salto/Juanacatlán, Paso de Guadalupe, and Ocotlán. Predictors for increased development of MNs and NBUDs were high concentrations of Al, Zn, and Cu. In conclusion, chronic exposure to HMMs, especially Al, Cu, and Zn, in the studied population could be related to increased frequencies of NAs, such as NBUDs, KX, CC, and KL, in the buccal mucosa cells.
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Affiliation(s)
- B C Gómez-Meda
- Instituto de Biología Molecular en Medicina, Departamento de Biología Molecular y Genómica, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Jalisco, Mexico
| | - G M Zúñiga-González
- Laboratorio de Mutagénesis, Centro de Investigación Biomédica de Occidente, Instituto Mexicano del Seguro Social, Guadalajara, Jalisco, Mexico
| | - L V Sánchez-Orozco
- Instituto de Biología Molecular en Medicina, Departamento de Biología Molecular y Genómica, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Jalisco, Mexico
| | - A L Zamora-Perez
- Instituto de Investigación en Odontología, Departamento de Clínicas Odontológicas Integrales, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Jalisco, Mexico
| | - J P Rojas-Ramírez
- Departamento de Ciencias Sociales, Centro Universitario de Tonalá, Universidad de Guadalajara, Tonalá, Jalisco, Mexico
| | - A D Rocha-Muñoz
- Departamento de Ciencias Biomédicas, División de Ciencias de la Salud, Centro Universitario de Tonalá, Universidad de Guadalajara, Av. Nuevo periférico No. 555 Ejido San José Tatepozco, C.P. 48525, Tonalá, Jalisco, Mexico
| | - A A Sobrevilla-Navarro
- Departamento de Ciencias Biomédicas, División de Ciencias de la Salud, Centro Universitario de Tonalá, Universidad de Guadalajara, Av. Nuevo periférico No. 555 Ejido San José Tatepozco, C.P. 48525, Tonalá, Jalisco, Mexico
| | - M A Arellano-Avelar
- Departamento de Ciencias Biomédicas, División de Ciencias de la Salud, Centro Universitario de Tonalá, Universidad de Guadalajara, Av. Nuevo periférico No. 555 Ejido San José Tatepozco, C.P. 48525, Tonalá, Jalisco, Mexico
| | - A A Guerrero-de León
- Departamento de Ciencias Biomédicas, División de Ciencias de la Salud, Centro Universitario de Tonalá, Universidad de Guadalajara, Av. Nuevo periférico No. 555 Ejido San José Tatepozco, C.P. 48525, Tonalá, Jalisco, Mexico
| | - J S Armendáriz-Borunda
- Instituto de Biología Molecular en Medicina, Departamento de Biología Molecular y Genómica, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Jalisco, Mexico
| | - M G Sánchez-Parada
- Departamento de Ciencias Biomédicas, División de Ciencias de la Salud, Centro Universitario de Tonalá, Universidad de Guadalajara, Av. Nuevo periférico No. 555 Ejido San José Tatepozco, C.P. 48525, Tonalá, Jalisco, Mexico.
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Voura EB, Montalvo MJ, Dela Roca KT, Fisher JM, Defamie V, Narala SR, Khokha R, Mulligan ME, Evans CA. Planarians as models of cadmium-induced neoplasia provide measurable benchmarks for mechanistic studies. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2017; 142:544-554. [PMID: 28482323 DOI: 10.1016/j.ecoenv.2017.04.044] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Revised: 04/02/2017] [Accepted: 04/19/2017] [Indexed: 06/07/2023]
Abstract
Bioassays of planarian neoplasia highlight the potential of these organisms as useful standards to assess whether environmental toxins such as cadmium promote tumorigenesis. These studies complement other investigations into the exceptional healing and regeneration of planarians - processes that are driven by a population of active stem cells, or neoblasts, which are likely transformed during planarian tumor growth. Our goal was to determine if planarian tumorigenesis assays are amenable to mechanistic studies of cadmium carcinogenesis. To that end we demonstrate, by examining both counts of cell populations by size, and instances of mitosis, that the activity of the stem cell population can be monitored. We also provide evidence that specific biomodulators can affect the potential of planarian neoplastic growth, in that an inhibitor of metalloproteinases effectively blocked the development of the lesions. From these results, we infer that neoblast activity does respond to cadmium-induced tumor growth, and that metalloproteinases are required for the progression of cancer in the planarian.
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Affiliation(s)
- Evelyn B Voura
- School of Science, Technology and Health Studies, Morrisville State College, 80 Eaton Street, Morrisville, New York 13408, USA.
| | - Melissa J Montalvo
- Department of Math and Science, Dominican College, 470 Western Highway South, Orangeburg, New York 10962, USA
| | - Kevin T Dela Roca
- Department of Math and Science, Dominican College, 470 Western Highway South, Orangeburg, New York 10962, USA
| | - Julia M Fisher
- Colgate University, 13 Oak Drive, Hamilton, New York 13346, USA
| | - Virginie Defamie
- Ontario Cancer Institute, University Health Network, University of Toronto, 101 College Street, Toronto, Ontario M5G 1L7, Canada
| | - Swami R Narala
- Ontario Cancer Institute, University Health Network, University of Toronto, 101 College Street, Toronto, Ontario M5G 1L7, Canada
| | - Rama Khokha
- Ontario Cancer Institute, University Health Network, University of Toronto, 101 College Street, Toronto, Ontario M5G 1L7, Canada
| | - Margaret E Mulligan
- Department of Math and Science, Dominican College, 470 Western Highway South, Orangeburg, New York 10962, USA
| | - Colleen A Evans
- Department of Math and Science, Dominican College, 470 Western Highway South, Orangeburg, New York 10962, USA
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