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Raja A, Costa P, Blum JL, Doherty-Lyons S, Igbo JK, Meltzer G, Orem W, McCawley M, Zelikoff JT. In vivo exposure to electronic waste (e-waste) leachate and hydraulic fracturing fluid adversely impacts the male reproductive system. Reprod Toxicol 2024; 124:108533. [PMID: 38160783 PMCID: PMC10922462 DOI: 10.1016/j.reprotox.2023.108533] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 12/12/2023] [Accepted: 12/27/2023] [Indexed: 01/03/2024]
Abstract
Human health effects can arise from unregulated manual disassembly of electronic waste (e-waste) and/or hydraulic fracturing fluid spills. There is limited literature on the effects of e-waste and hydraulic fracturing wastewater exposure on the male reproductive system. Thus, this proof-of-concept study begins to address the question of how wastewater from two potentially hazardous environmental processes could affect sperm quality. Therefore, three groups of eight-week-old adult mice were exposed (5 d/wk for 6 wks) via a mealworm (Tenebrio molitor and Zophabas morio) feeding route to either: (1) e-waste leachate (50% dilution) from the Alaba Market (Lagos, Nigeria); (2) West Virginia hydraulic fracturing flowback (HFF) fluid (50% dilution); or, (3) deionized water (control). At 24-hours (hr), 3 weeks (wk), or 9-wk following the 6-wk exposure period, cohorts of mice were necropsied and adverse effects/persistence on the male reproductive system were examined. Ingestion of e-waste leachate or HFF fluid decreased number and concentration of sperm and increased both chromatin damage and numbers of morphological abnormalities in the sperm when compared to control mice. Levels of serum testosterone were reduced post-exposure (3- and 9-wk) in mice exposed to e-waste leachate and HFF when compared to time-matched controls, indicating the long-term persistence of adverse effects, well after the end of exposure. These data suggest that men living around or working in vicinity of either e-waste or hydraulic fracturing could face harmful effects to their reproductive health. From both a human health and economic standpoint, development of prevention and intervention strategies that are culturally relevant and economically sensitive are critically needed to reduce exposure to e-waste and HFF-associated toxic contaminants.
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Affiliation(s)
- Amna Raja
- Division of Environmental Medicine, New York University School of Medicine, New York, NY, USA
| | - Patricia Costa
- Division of Environmental Medicine, New York University School of Medicine, New York, NY, USA
| | - Jason L Blum
- Division of Environmental Medicine, New York University School of Medicine, New York, NY, USA; Product Safety Labs, Dayton, NJ, USA
| | - Shannon Doherty-Lyons
- Division of Environmental Medicine, New York University School of Medicine, New York, NY, USA
| | - Juliet K Igbo
- Department of Biological Oceanography, Nigerian Institute for Oceanography and Marine Research, Lagos, Nigeria
| | - Gabriella Meltzer
- Departments of Epidemiology and Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, USA
| | - William Orem
- United States Geological Survey, Reston, VA, USA
| | - Michael McCawley
- Department of Occupational & Environmental Health Sciences, School of Public Health, West Virginia University, South Morgantown, WV, USA
| | - Judith T Zelikoff
- Division of Environmental Medicine, New York University School of Medicine, New York, NY, USA.
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Lyons HE, Arman BM, Robertson SA, Sharkey DJ. Immune regulatory cytokines in seminal plasma of healthy men: A scoping review and analysis of variance. Andrology 2023; 11:1245-1266. [PMID: 36891953 PMCID: PMC10947054 DOI: 10.1111/andr.13424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 02/24/2023] [Accepted: 02/27/2023] [Indexed: 03/10/2023]
Abstract
OBJECTIVE Seminal plasma cytokines are associated with fertility and reproductive health, but progressing their clinical utility is hampered by absence of reference data on concentration ranges of relevant cytokines in healthy men. We employed a systematic approach to assemble current evidence on the concentrations of immune regulatory cytokines present in seminal plasma (SP) of normozoospermic and/or fertile men and evaluated the impact of different platform methodologies for cytokine quantification. EVIDENCE REVIEW A systematic literature search was performed utilising PubMed, Web of Science and Scopus. Databases were searched from inception until 30th June 2022 inclusive, using combinations of keywords pertaining to seminal fluid and cytokines, and was restricted to human participants. Original data with values reported as concentration of specific cytokines in SP of men clearly defined as fertile or normozoospermic were extracted from studies written in English. RESULTS A total of 3769 publications were initially identified, of which 118 fulfilled the eligibility criteria for inclusion. A total of 51 individual cytokines are detectable in SP of healthy men. The number of studies reporting on each cytokine range from 1 to >20. The reported concentrations for many cytokines linked with fertility status, including IL6, CXCL8/IL8, and TNFA, are highly variable between published studies. This is associated with the different immunoassay methodologies utilised and may be exacerbated by a lack of validation of assays to ensure suitability for SP assessment. Due to the large variation between studies, accurate reference ranges for healthy men cannot be determined from the published data. CONCLUSIONS The concentrations of cytokines and chemokines detected in SP is inconsistent and highly variable between studies and cohorts, limiting current capacity to define reference ranges for cytokine concentrations in fertile men. The lack of standardisation in methods used to process and store SP, and variation in platforms used to evaluate cytokine abundance, are factors contributing to the observed heterogeneity. To progress the clinical utility of SP cytokine analysis will require standardisation and validation of methodologies so that reference ranges for healthy fertile men can be defined.
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Affiliation(s)
- Hannah E. Lyons
- Robinson Research Institute and School of BiomedicineUniversity of AdelaideAdelaideSouth AustraliaAustralia
| | - Bridget M. Arman
- Robinson Research Institute and School of BiomedicineUniversity of AdelaideAdelaideSouth AustraliaAustralia
- Department of Obstetrics and GynaecologyUniversity of MelbourneParkvilleMelbourneAustralia
| | - Sarah A. Robertson
- Robinson Research Institute and School of BiomedicineUniversity of AdelaideAdelaideSouth AustraliaAustralia
| | - David J. Sharkey
- Robinson Research Institute and School of BiomedicineUniversity of AdelaideAdelaideSouth AustraliaAustralia
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Ozoani H, Ezejiofor AN, Okolo KO, Orish CN, Cirovic A, Cirovic A, Orisakwe OE. Zinc and selenium attenuate quaternary heavy metal mixture-induced testicular damage via amplification of the antioxidant system, reduction in metal accumulation, inflammatory and apoptotic biomarkers. Toxicol Res 2023; 39:497-515. [PMID: 37398573 PMCID: PMC10313602 DOI: 10.1007/s43188-023-00187-z] [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: 01/09/2023] [Revised: 04/20/2023] [Accepted: 04/26/2023] [Indexed: 07/04/2023] Open
Abstract
Heavy metals (HMs) such as cadmium (Cd), lead (Pb), arsenic (As), and mercury (Hg) are highly toxic elements. They are often found together in nature as a heavy metal mixture (HMM) and are known to contribute to subfertility/infertility as environmental pollutants. This study aims to evaluate the potential benefits of treating HMM-induced testicular pathophysiology with zinc (Zn) and/or selenium (Se). Six-week-old male Sprague Dawley rats were grouped into 5 (n = 7). The control group received deionized water, while the other groups were treated with PbCl2 (20 mg kg-1), CdCl2 (1.61 mg kg-1), HgCl2 (0.40 mg kg-1), and Na2AsO3 (10 mg kg-1) in deionized water for 60 days. Additionally, groups III to V received Zn, Se, and Zn/Se, respectively, for 60 days. The study evaluated testis weight, metal accumulation, sperm analysis, FSH, LH, testosterone, prolactin, oxidative stress, antioxidants, pro-inflammatory and apoptotic markers, and presented structural changes in the testis as micrographs. HMM caused a significant increase in testis weight, metal accumulation, prolactin, oxidative stress, and pro-inflammatory and apoptotic markers, while significantly decreasing semen analysis, FSH, LH, and testosterone. Histology showed decreased spermatogenesis and spermiogenesis, as evidenced by the structure of the germ cells and spermatids. However, Zn, Se, or both ameliorated and reversed some of the observed damages. This study provides further evidence for the mitigative potential of Zn, Se, or both in reversing the damage inflicted by HMM in the testis, and as a countermeasure towards improving HM-induced decrease in public health fecundity. Graphical abstract
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Affiliation(s)
- Harrison Ozoani
- African Centre of Excellence for Public Health and Toxicological Research (ACE-PUTOR), University of Port Harcourt, PMB, 5323, Port Harcourt, Choba Nigeria
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, University of Science and Technology, Nsukka, Enugu State Nigeria
| | - Anthonet N. Ezejiofor
- African Centre of Excellence for Public Health and Toxicological Research (ACE-PUTOR), University of Port Harcourt, PMB, 5323, Port Harcourt, Choba Nigeria
| | - Kenneth O. Okolo
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, University of Science and Technology, Nsukka, Enugu State Nigeria
| | - Chinna N. Orish
- Department of Anatomy, Faculty of Basic Medical Sciences, College of Health Sciences, University of Port Harcourt, PMB, 5323, Port Harcourt, Choba Nigeria
| | - Ana Cirovic
- Faculty of Medicine, Institute of Anatomy, University of Belgrade, Belgrade, Serbia
| | - Aleksandar Cirovic
- Faculty of Medicine, Institute of Anatomy, University of Belgrade, Belgrade, Serbia
| | - Orish E. Orisakwe
- African Centre of Excellence for Public Health and Toxicological Research (ACE-PUTOR), University of Port Harcourt, PMB, 5323, Port Harcourt, Choba Nigeria
- Provictoire Research Institute, Port Harcourt, Rivers State Nigeria
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Akang EN, Dosumu OO, Ogbenna A, Akpan UU, Ezeukwu JC, Odofin M, Oremosu AA, Akanmu AS. The impact of dolutegravir-based combination antiretroviral therapy on the spermatozoa and fertility parameters of men living with human immunodeficiency virus. Andrologia 2022; 54:e14621. [PMID: 36261884 PMCID: PMC9722517 DOI: 10.1111/and.14621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 09/18/2022] [Accepted: 09/28/2022] [Indexed: 11/28/2022] Open
Abstract
The factors responsible for this reported fertility decline among human immunodeficiency virus (HIV) positive men is yet to be determined. This study is aimed at investigating the impact of HIV or combination antiretroviral therapy (cART) on sperm cells, reproductive hormones, oxidative stress markers, apoptosis, and sperm DNA fragmentation of men living with HIV. Twenty-one men living with HIV gave their written informed consent to participate in this study. Only 11 of the participants successfully donated blood and semen before and after 3 months of their treatment with cART. Semen, reproductive hormones, oxidative stress biomarkers, and DNA fragmentation were analysed. Data were subjected to Wilcoxon matched pairs signed rank test (ethical approval: CMUL/HREC/09/19/614). There was a significant decrease in viral load of HIV (p < 0.01), and a marked increase in progressive and total sperm motility. Total sperm count, morphology, and vitality had no significant change after 3 months of treatment with cART however, there was a significant increase (p < 0.05) in testosterone from 2.48 to 3.68 ng/ml, but luteinizing hormone decreased significantly (p < 0.05) from 9.6 to 6.5 mIU/ml. In addition, sperm DNA fragmentation increased significantly (p < 0.01). Conversely, viral load, and catalase decreased significantly, but no significant difference in malondialdehyde. This study showed that HIV depleted testosterone and impaired sperm motility which may negatively affect the fertility potential of men living with HIV. It also showed that adherence to cART (a combination of tenofovir, lamivudine, and dolutegravir) reduces the viral load and reverses the deleterious effects of cART albeit, cART appears to be toxic at subcellular spermatogenic levels.
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Affiliation(s)
- EN Akang
- Department of Anatomy, College of Medicine, University of Lagos, P.M.B. 12003, Idi-Araba, Lagos, Nigeria
| | - OO Dosumu
- Department of Anatomy, College of Medicine, University of Lagos, P.M.B. 12003, Idi-Araba, Lagos, Nigeria
| | - A Ogbenna
- Department of Haematology and Blood Transfusion, College of Medicine, University of Lagos, Idi-Araba, Lagos, Nigeria
| | - UU Akpan
- Department of Anatomy, Faculty of Basic Medical Sciences, Bowen University, Iwo, Osun state, Nigeria
| | - JC Ezeukwu
- Department of Anatomy, College of Medicine, University of Lagos, P.M.B. 12003, Idi-Araba, Lagos, Nigeria
| | - M Odofin
- Department of Haematology and Blood Transfusion, Antiretroviral therapy (ART) Clinic, Lagos University Teaching Hospital (LUTH), Lagos, Nigeria
| | - AA Oremosu
- Department of Anatomy, College of Medicine, University of Lagos, P.M.B. 12003, Idi-Araba, Lagos, Nigeria
| | - AS Akanmu
- Department of Haematology and Blood Transfusion, College of Medicine, University of Lagos, Idi-Araba, Lagos, Nigeria
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Zeng X, Zeng Z, Wang Q, Liang W, Guo Y, Huo X. Alterations of the gut microbiota and metabolomics in children with e-waste lead exposure. JOURNAL OF HAZARDOUS MATERIALS 2022; 434:128842. [PMID: 35430456 DOI: 10.1016/j.jhazmat.2022.128842] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Revised: 03/28/2022] [Accepted: 03/31/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND A lead (Pb) exposure can alter the composition and metabolites of gut microbiota. However, few studies investigated this association in the children. METHODS A total of 551 children aged 3-7 years were recruited from Guiyu (the e-waste dismantling area) and Haojiang (the reference area). There were finally 70 subjects met the inclusive criteria. Blood and urinary Pb concentrations were detected by GFAAS and ICP-MS techniques. The microbiota and metabolites were measured in stool samples using 16 S rRNA MiSeq sequencing technology and gas chromatography-mass spectrometry (GC-MS), respectively. RESULTS Average Pb concentrations in the blood and urine of children were higher in Guiyu than in Haojiang. There were 58 kinds of differential genera and 19 types of discrepant metabolites between the two groups, and wide and significant correlations were found between them. Exposure to Pb caused the most significant differences in microbiota, metabolites, and physical development parameters between the two groups in terms of microbiota, metabolites, and physical development indicators. Sphingolipid metabolism and ion transport may also be altered by Pb exposure. CONCLUSIONS Exposure to Pb is associated with significant alterations in the gut microbiota and metabolome in children. More research is needed to confirm the findings of this study.
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Affiliation(s)
- Xiang Zeng
- Laboratory of Environmental Medicine and Developmental Toxicology, Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 511443, Guangdong, China
| | - Zhijun Zeng
- Laboratory of Environmental Medicine and Developmental Toxicology, Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 511443, Guangdong, China
| | - Qihua Wang
- Laboratory of Environmental Medicine and Developmental Toxicology, Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 511443, Guangdong, China
| | - Wanting Liang
- Laboratory of Environmental Medicine and Developmental Toxicology, Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 511443, Guangdong, China
| | - Yufeng Guo
- Laboratory of Environmental Medicine and Developmental Toxicology, Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 511443, Guangdong, China
| | - Xia Huo
- Laboratory of Environmental Medicine and Developmental Toxicology, Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 511443, Guangdong, China.
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Use of Generalized Weighted Quantile Sum Regressions of Tumor Necrosis Factor Alpha and Kidney Function to Explore Joint Effects of Multiple Metals in Blood. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19127399. [PMID: 35742647 PMCID: PMC9223707 DOI: 10.3390/ijerph19127399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 06/11/2022] [Accepted: 06/14/2022] [Indexed: 02/04/2023]
Abstract
Exposure to heavy metals could lead to adverse health effects by oxidative reactions or inflammation. Some essential elements are known as reactors of anti-inflammatory enzymes or coenzymes. The relationship between tumor necrosis factor alpha (TNF-α) and heavy metal exposures was reported. However, the interaction between toxic metals and essential elements in the inflammatory response remains unclear. This study aimed to explore the association between arsenic (As), cadmium (Cd), lead (Pb), cobalt (Co), copper (Cu), selenium (Se), and zinc (Zn) in blood and TNF-α as well as kidney function. We enrolled 421 workers and measured the levels of these seven metals/metalloids and TNF-α in blood; kidney function was calculated by CKD-EPI equation. We applied weighted quantile sum (WQS) regression and group WQS regression to assess the effects of metal/metalloid mixtures to TNF-α and kidney function. We also approached the relationship between metals/metalloids and TNF-α by generalized additive models (GAM). The relationship of the exposure−response curve between Pb level and TNF-α in serum was found significantly non-linear after adjusting covariates (p < 0.001). Within the multiple-metal model, Pb, As, and Zn were associated with increased TNF-α levels with effects dedicated to the mixture of 50%, 31%, and 15%, respectively. Grouped WQS revealed that the essential metal group showed a significantly negative association with TNF-α and kidney function. The toxic metal group found significantly positive associations with TNF-α, serum creatinine, and WBC but not for eGFR. These results suggested Pb, As, Zn, Se, and mixtures may act on TNF-α even through interactive mechanisms. Our findings offer insights into what primary components of metal mixtures affect inflammation and kidney function during co-exposure to metals; however, the mechanisms still need further research.
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Davis LL, Aragão WAB, de Oliveira Lopes G, Eiró LG, Freire AR, Prado FB, Rossi AC, da Silva Cruz A, das Graças Fernandes Dantas K, Albuquerque ARL, Paz SPA, Angélica RS, Lima RR. Chronic exposure to lead acetate promotes changes in the alveolar bone of rats: microstructural and physical-chemical characterization. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:13930-13940. [PMID: 34599710 DOI: 10.1007/s11356-021-16723-z] [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: 07/22/2020] [Accepted: 09/21/2021] [Indexed: 06/13/2023]
Abstract
There are a few data relating to the effects of lead (Pb) exposure on the alveolar bone, which has very distinct morphophysiological characteristics and is of great importance in the oral cavity. In this context, the aim of this study was to investigate the changes promoted after long-term exposure to Pb in the microstructure of the alveolar bone of rats. Twenty adult Wistar rats were exposed to 50 mg/kg/day of lead acetate for 55 days. These animals were euthanized and had their mandible removed. Each mandible was divided into hemimandibles, and the alveolar bone was used for bone lead quantification, crystallinity analysis, microstructure evaluation by the percentage of bone volume (BV/TV), number of trabeculae (Tb.N), thickness of the trabecular (Tb.Th), and trabecular space (Tb.Sp). Morphometric analysis of the exposed root area was also performed. Long-term exposure to Pb resulted in high levels of Pb in the alveolar bone but showed no changes in the organization of crystallinity. The microstructural analyses showed a reduction of BV/TV, Tb.Th, and Tb.N and increase of Tb.Sp parameters, resulting in an increase in the exposed root area and an alveolar bone loss in height. The findings of this study reveal the ability of Pb to alter the alveolar bone microstructure after long-term exposure to the metal, possibly due to changes in tissue homeostasis, contributing to the reduction of bone quality.
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Affiliation(s)
- Lodinikki Lemoy Davis
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Pará, Augusto Corrêa street, N. 1. Campus do Guamá. - CEP, Belém, PA, 66075-110, Brazil
| | - Walessa Alana Bragança Aragão
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Pará, Augusto Corrêa street, N. 1. Campus do Guamá. - CEP, Belém, PA, 66075-110, Brazil
| | - Géssica de Oliveira Lopes
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Pará, Augusto Corrêa street, N. 1. Campus do Guamá. - CEP, Belém, PA, 66075-110, Brazil
| | - Luciana Guimaraes Eiró
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Pará, Augusto Corrêa street, N. 1. Campus do Guamá. - CEP, Belém, PA, 66075-110, Brazil
| | - Alexandre Rodrigues Freire
- Laboratory of research in Mechanobiology, Piracicaba Dental School, University of Campinas - UNICAMP, Piracicaba, Brazil
| | - Felippe Bevilacqua Prado
- Laboratory of research in Mechanobiology, Piracicaba Dental School, University of Campinas - UNICAMP, Piracicaba, Brazil
| | - Ana Cláudia Rossi
- Laboratory of research in Mechanobiology, Piracicaba Dental School, University of Campinas - UNICAMP, Piracicaba, Brazil
| | - Allan da Silva Cruz
- Group of Applied Analytical Spectrometry, Institute of Natural and Exact Sciences, Federal University of Pará, Belém, PA, Brazil
| | | | - Alan Rodrigo Leal Albuquerque
- Group of Applied Analytical Spectrometry, Institute of Natural and Exact Sciences, Federal University of Pará, Belém, PA, Brazil
| | - Simone Patricia Aranha Paz
- Group of Applied Analytical Spectrometry, Institute of Natural and Exact Sciences, Federal University of Pará, Belém, PA, Brazil
| | - Rômulo Simões Angélica
- Laboratory of Mineral Characterization, Institute of Geology and Geochemistry, Federal University of Pará, Belém, PA, Brazil
| | - Rafael Rodrigues Lima
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Pará, Augusto Corrêa street, N. 1. Campus do Guamá. - CEP, Belém, PA, 66075-110, Brazil.
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Saikiran G, Mitra P, Sharma S, Kumar PK, Sharma P. Selenium, oxidative stress and inflammatory markers in handicraft workers occupationally exposed to lead. ARCHIVES OF ENVIRONMENTAL & OCCUPATIONAL HEALTH 2021; 77:561-567. [PMID: 34423749 DOI: 10.1080/19338244.2021.1968780] [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] [Indexed: 06/13/2023]
Abstract
Occupational Lead (Pb) exposure increases reactive oxygen species and has been reported to impact inflammatory response by modulating intracellular signaling pathways. Selenium (Se) a vital component of the antioxidant system that plays an important role in modulating cytokines. The present study evaluated Se, malondialdehyde (MDA), total antioxidant capacity (TAC) and cytokines (IL-6, TNF-α, IL-10, IL-17a) in 81 Pb exposed male workers. The median (range) of blood lead level (BLL) and Se were 5 (0.50-31.76) µg/dL and 104 (46.9-189.6) µg/L respectively. The Se, TAC levels were decreased, and MDA, IL-6 levels were increased in the high Pb group (>5μg/dL). Blood lead level independently predicted oxidative stress and antioxidant status. Selenium, TAC levels negatively and MDA, IL-6 levels positively correlated with BLL. Association of Se with IL-6 and TAC suggests some probable role of Se in the underlined mechanism of Pb toxicity.
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Affiliation(s)
- Gangam Saikiran
- Department of Biochemistry, All India Institute of Medical Sciences Jodhpur, Jodhpur, Rajasthan, India
| | - Prasenjit Mitra
- Department of Biochemistry, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Shailja Sharma
- Department of Biochemistry, All India Institute of Medical Sciences Jodhpur, Jodhpur, Rajasthan, India
| | - Pvsn Kiran Kumar
- Department of Biochemistry, All India Institute of Medical Sciences Jodhpur, Jodhpur, Rajasthan, India
| | - Praveen Sharma
- Department of Biochemistry, All India Institute of Medical Sciences Jodhpur, Jodhpur, Rajasthan, India
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Zeng X, Huo X, Xu X, Liu D, Wu W. E-waste lead exposure and children's health in China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 734:139286. [PMID: 32460072 DOI: 10.1016/j.scitotenv.2020.139286] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Revised: 04/20/2020] [Accepted: 05/06/2020] [Indexed: 02/05/2023]
Abstract
China is one of the countries worldwide confronted with serious e-waste pollution and associated detrimental health effects, which has aroused public, academic and governmental concerns. Most local residents are exposed to hazardous substances such as lead (Pb) and other persistent organic pollutants because of informal e-waste recycling activities. This study reviews recent studies on children exposed to e-waste Pb in China focusing on health-related effects in children (e.g. growth and development, cardiovascular, immune, nervous, respiratory, reproductive, skeletal, and urinary systems) and evaluating the evidence for the association between e-waste Pb exposure and the children health outcomes in China. Children are one of most sensitive and vulnerable groups when facing e-waste Pb exposure. Previous data indicate that exposure to e-waste Pb has adverse effect on human health such as delayed and damaged physical and nervous development. It is the time to take effective measures, such as upgrading e-waste recycling technology, enhancing government policy guidance and support, and strengthening environmental protection and health awareness of the local inhabitants, to prevent the adverse effects of e-waste.
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Affiliation(s)
- Xiang Zeng
- School of Public Health, Xinxiang Medical University, 601 Jinsui Road, Xinxiang 453003, Henan, China; Laboratory of Environmental Medicine and Developmental Toxicology, Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 510632, Guangdong, China; Laboratory of Environmental Medicine and Developmental Toxicology, Shantou University Medical College, 22 Xinling Road, Shantou 515041, Guangdong, China.
| | - Xia Huo
- Laboratory of Environmental Medicine and Developmental Toxicology, Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 510632, Guangdong, China
| | - Xijin Xu
- Laboratory of Environmental Medicine and Developmental Toxicology, Shantou University Medical College, 22 Xinling Road, Shantou 515041, Guangdong, China
| | - Dongling Liu
- Henan Key Laboratory of Medical Tissue Regeneration, Xinxiang Medical University, 601 Jinsui Road, Xinxiang 453003, China
| | - Weidong Wu
- School of Public Health, Xinxiang Medical University, 601 Jinsui Road, Xinxiang 453003, Henan, China
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10
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Santi D, Spaggiari G, Casonati A, Casarini L, Grassi R, Vecchi B, Roli L, De Santis MC, Orlando G, Gravotta E, Baraldi E, Setti M, Trenti T, Simoni M. Multilevel approach to male fertility by machine learning highlights a hidden link between haematological and spermatogenetic cells. Andrology 2020; 8:1021-1029. [PMID: 32449608 DOI: 10.1111/andr.12826] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 05/15/2020] [Accepted: 05/19/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND Male infertility represents a complex clinical condition requiring an accurate multilevel assessment, in which machine learning technology, combining large data series in non-linear and highly interactive ways, could be innovatively applied. METHODS A longitudinal, observational, retrospective, big data study was carried out, applying for the first time the ML in the context of male infertility. A large database including all semen samples collected between 2010 and 2016 was generated, together with blood biochemical examinations, environmental temperature and air pollutants exposure. First, the database was analysed with principal component analysis and multivariable linear regression analyses. Second, classification analyses were performed, in which patients were a priori classified according to semen parameters. Third, machine learning algorithms were applied in a training phase (80% of the entire database) and in a tuning phase (20% of the data set). Finally, conventional statistical analyses were applied considering semen parameters and those other variables extracted during machine learning. RESULTS The final database included 4239 patients, aggregating semen analyses, blood and environmental parameters. Classification analyses were able to recognize oligozoospermic, teratozoospermic, asthenozoospermic and patients with altered semen parameters (0.58 accuracy, 0.58 sensitivity and 0.57 specificity). Machine learning algorithms detected three haematological variables, that is lymphocytes number, erythrocyte distribution and mean globular volume, significantly related to semen parameters (0.69 accuracy, 0.78 sensitivity and 0.41 specificity). CONCLUSION This is the first machine learning application to male fertility, detecting potential mathematical algorithms able to describe patients' semen characteristics changes. In this setting, a possible hidden link between testicular and haematopoietic tissues was suggested, according to their similar proliferative properties.
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Affiliation(s)
- Daniele Santi
- Unit of Endocrinology, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy.,Unit of Endocrinology, Department of Medical Specialties, Azienda Ospedaliero-Universitaria of Modena, Modena, Italy
| | - Giorgia Spaggiari
- Unit of Endocrinology, Department of Medical Specialties, Azienda Ospedaliero-Universitaria of Modena, Modena, Italy
| | | | - Livio Casarini
- Unit of Endocrinology, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy.,Center for the Genomic Research, University of Modena and Reggio Emilia, Modena, Italy
| | | | | | - Laura Roli
- Department of Laboratory Medicine and Anatomy Pathology, Azienda USL of Modena, Modena, Italy
| | | | | | - Enrica Gravotta
- Medical Affairs Fertility EMEA, Merck KGaA, Darmstadt, Germany
| | - Enrica Baraldi
- Department of Laboratory Medicine and Anatomy Pathology, Azienda USL of Modena, Modena, Italy
| | - Monica Setti
- Service of Clinical Engineering, Azienda Ospedaliero-Universitaria of Modena, Modena, Italy
| | - Tommaso Trenti
- Department of Laboratory Medicine and Anatomy Pathology, Azienda USL of Modena, Modena, Italy
| | - Manuela Simoni
- Unit of Endocrinology, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy.,Unit of Endocrinology, Department of Medical Specialties, Azienda Ospedaliero-Universitaria of Modena, Modena, Italy
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11
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Sheng Z, Wang S, Zhang X, Li X, Li B, Zhang Z. Long-Term Exposure to Low-Dose Lead Induced Deterioration in Bone Microstructure of Male Mice. Biol Trace Elem Res 2020; 195:491-498. [PMID: 31407216 DOI: 10.1007/s12011-019-01864-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Accepted: 08/04/2019] [Indexed: 10/26/2022]
Abstract
The aim of this study was to investigate the long-term effects of low-dose lead exposure on bone microstructure in mice. Ten SPF 12-week-old male C57BL/6J mice were randomly divided into two groups: control (deionized water) and lead exposure (150 ppm of lead acetate in drinking water). After 24 weeks treatment, mice were weighed and the left femurs were collected and stored at - 80 °C. The right femurs of the mice were scanned by Micro-CT for three-dimensional reconstruction, and bone mineral density, bone volume fraction, trabeculae thickness, trabeculae number, and trabeculae separation were measured. The right tibia was collected to investigate histopathological changes in H&E-stained sections. The gene expression of osteoprotegerin (OPG), RANKL, and runt-related transcription factor 2 (Runx2) was determined using real-time PCR. The bone density of femoral cancellous bone and the number of cancellous bone trabeculae in the lead exposure group were both significantly decreased compared with the control group. Bone marrow stromal cell numbers were decreased following lead administration, and lipid droplet vacuoles were observed in the lead group. Levels of OPG were significantly decreased in the lead group, and lead also inhibited the expression of Runx2 compared with the control group. Long-term exposure to low doses of lead can cause bone damage without inducing other obvious symptoms through decreasing bone density and the number of cancellous bone trabeculae, further suppressing bone formation. It suggests that lead may exacerbate bone loss and osteoporosis, especially in the elderly.
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Affiliation(s)
- Zhijie Sheng
- School of Public Health, Medical College of Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, China
| | - Shuai Wang
- School of Public Health, Medical College of Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, China
| | - Xiang Zhang
- School of Public Health, Medical College of Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, China
| | - Xiaoyin Li
- School of Public Health, Medical College of Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, China
| | - Bingyan Li
- Experimental Center of Medical College of Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, China
| | - Zengli Zhang
- School of Public Health, Medical College of Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, China.
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12
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Gupta S, Finelli R, Agarwal A, Henkel R. Total antioxidant capacity-Relevance, methods and clinical implications. Andrologia 2020; 53:e13624. [PMID: 32400041 DOI: 10.1111/and.13624] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 04/03/2020] [Accepted: 04/10/2020] [Indexed: 12/31/2022] Open
Abstract
Oxidative stress is pre-empted by an adequate level of antioxidants, which scavenge oxidants when they are produced in excess by different sources, including leukocytes and immature spermatozoa. Enzymatic antioxidants, such as superoxide dismutase, catalase and glutathione peroxidase, and several non-enzymatic antioxidants (proteins, vitamins and minerals), working as oxidant scavengers and cofactors of enzymatic antioxidants have been identified in seminal plasma. The total antioxidant capacity (TAC) is a diagnostic test that can be utilised in the male infertility workup. TAC measures the amount of total antioxidants in seminal plasma. Therefore, it provides an assessment of the reductive potential in seminal plasma. Several studies have investigated the diagnostic application of TAC in various andrology conditions. There is substantial evidence in the literature to show that infertile patients have lower seminal TAC in comparison with fertile men. Moreover, there is a positive correlation between TAC and seminal parameters, such as sperm concentration, motility and morphology. Evaluation of TAC together with reactive oxygen species (ROS) and sperm DNA fragmentation index (DFI) may be beneficial in the diagnosis of male infertility.
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Affiliation(s)
- Sajal Gupta
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Renata Finelli
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Ashok Agarwal
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Ralf Henkel
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA.,Department of Medical Bioscience, University of the Western Cape, Bellville, South Africa
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13
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He Y, Zou L, Luo W, Yi Z, Yang P, Yu S, Liu N, Ji J, Guo Y, Liu P, He X, Lv Z, Huang S. Heavy metal exposure, oxidative stress and semen quality: Exploring associations and mediation effects in reproductive-aged men. CHEMOSPHERE 2020; 244:125498. [PMID: 31812049 DOI: 10.1016/j.chemosphere.2019.125498] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 11/20/2019] [Accepted: 11/26/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND Heavy metal exposure induces oxidative stress, which is critical for adverse male reproductive health. OBJECTIVE To explore the mediating effect of oxidative stress on the relationship of heavy metal exposure with semen quality. METHODS Urinary levels of three oxidative stress markers, semen quality, and urinary arsenic, cadmium and lead were examined among 1020 men. Multivariate linear regression was applied to explore cross-sectional associations, and the role of oxidative stress as mediators was investigated. RESULTS Quartiles of metals showed significant dose-dependent relationships with increasing levels of 8-hydroxy-2deoxyguanosine (8-OHdG), 8-iso-prostaglandin F2α (8-isoPGF2α) and 4-hydroxy-2-nonenal-mercapturic acid (HNE-MA). Significant or suggestive associations were also found between urinary 8-OHdG levels and the percentage of normal sperm morphology (ptrend < 0.001), between urinary 8-isoPGF2α levels and total motility (ptrend = 0.052), progressive motility (ptrend = 0.050) respectively. The mediation analysis showed that about 14.59%, 18.06%, 15.35% or 16.49% of the association between arsenic/cadmium exposure and the decreased total motility/progressive motility was mediated by 8-isoPGF2α, respectively. In addition, about 16.47% of the relationship between lead exposure and the decreased percentage of normal sperm morphology was mediated by 8-OHdG. CONCLUSIONS Our findings suggest that higher urinary arsenic, cadmium and lead levels were associated with increased oxidative stress markers, which also related with altered semen quality. 8-isoPGF2α and 8-OHdG might be the possible mediators of the associations between urinary heavy metals and total motility, progressive motility or the proportion of normal sperm morphology.
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Affiliation(s)
- Yinni He
- School of Medicine, Shaoyang University, Shaoyang, 422000, Hunan Province, China
| | - Lijun Zou
- Department of Preventive Medicine, Gannan Medical University, Ganzhou, 341000, Jiangxi Province, China
| | - Wenqi Luo
- Department of Histology and Embryology, Changsha Medical University, Changsha, 410219, Hunan Province, China
| | - Zhiyong Yi
- School of Medicine, Shaoyang University, Shaoyang, 422000, Hunan Province, China
| | - Pan Yang
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Shuyuan Yu
- Department of Environment and Health, Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, Guangdong Province, China
| | - Ning Liu
- Department of Environment and Health, Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, Guangdong Province, China
| | - Jiajia Ji
- Department of Environment and Health, Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, Guangdong Province, China
| | - Yinsheng Guo
- Department of Environment and Health, Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, Guangdong Province, China
| | - Peiyi Liu
- Department of Molecular Epidemiology, Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, Guangdong Province, China
| | - Xinpeng He
- Department of Molecular Epidemiology, Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, Guangdong Province, China
| | - Ziquan Lv
- Department of Molecular Epidemiology, Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, Guangdong Province, China.
| | - Suli Huang
- Department of Environment and Health, Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, Guangdong Province, China.
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14
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Ammar O, Mehdi M, Muratori M. Teratozoospermia: Its association with sperm DNA defects, apoptotic alterations, and oxidative stress. Andrology 2020; 8:1095-1106. [DOI: 10.1111/andr.12778] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 02/12/2020] [Accepted: 02/21/2020] [Indexed: 10/24/2022]
Affiliation(s)
- Oumaima Ammar
- Laboratory of Histology Embryology and Cytogenetics (LR 18 ES 40) Faculty of Medicine University of Monastir Monastir Tunisia
- Laboratory of Cytogenetics and Reproductive Biology Center of Maternity and Neonatology Monastir Fattouma Bourguiba University Teaching Hospital Monastir Tunisia
| | - Meriem Mehdi
- Laboratory of Histology Embryology and Cytogenetics (LR 18 ES 40) Faculty of Medicine University of Monastir Monastir Tunisia
- Laboratory of Cytogenetics and Reproductive Biology Center of Maternity and Neonatology Monastir Fattouma Bourguiba University Teaching Hospital Monastir Tunisia
| | - Monica Muratori
- Department of Experimental and Clinical Biomedical Sciences “Mario Serio” Unit of Sexual Medicine and Andrology Center of Excellence DeNothe University of Florence Florence Italy
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15
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Marzec-Wróblewska U, Kamiński P, Łakota P, Szymański M, Wasilow K, Ludwikowski G, Jerzak L, Stuczyński T, Woźniak A, Buciński A. Human Sperm Characteristics with Regard to Cobalt, Chromium, and Lead in Semen and Activity of Catalase in Seminal Plasma. Biol Trace Elem Res 2019; 188:251-260. [PMID: 29959647 DOI: 10.1007/s12011-018-1416-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Accepted: 12/12/2017] [Indexed: 11/25/2022]
Abstract
We analyzed cobalt (Co), chromium (Cr), and lead (Pb) concentrations in human semen and catalase CAT activity in seminal plasma and the effects of their relations on the sperm quality. We obtained semen samples from men (n = 168) undergoing routine infertility evaluation. Studies included two groups based on the ejaculate parameters: I (n = 39; normal ejaculate; normozoospermia); II (n = 129; pathological spermiogram). We examined relationships and differences between Co, Cr, and Pb concentrations in seminal plasma, CAT activity, and semen parameters. We did not establish differences in Co, Cr, and Pb concentrations and CAT activity from men between normozoospermic and those with pathological spermiogram. We found a significantly lower Co concentration and CAT activity in males with normal sperm motility than in asthenozoospermic males. We found significantly lower Co and a higher Pb concentration in males with normal morphology of spermatozoa than in teratozoospermic males. We found a significantly higher Pb concentration in the individuals with consumption of alcohol than in those without consumption. There were significant correlations between Co and Pb concentrations, sperm progressive motility (A + B, i.e., fast and slow progressive motility; Co-negatively; Pb-positively), and normal morphology of spermatozoa (Co-negatively; Pb-positively). We found a significant negative correlation between Cr concentration and slow progressive motility, and between CAT activity and volume of ejaculate. Co, Cr, and Pb levels and CAT activity were related to sperm characteristics and male fertility. The impact of alcohol may be manifested by a disturbance in Pb equilibrium in the body. Co and Pb influence progressive motility and normal morphology of human spermatozoa. Thus, Co and Pb levels in semen may be a useful diagnostic in male infertility. Most of the results of this study are in contrast to expectations. Namely, Pb is a toxic element and its harmful effects (poor semen quality) may be expected already at relatively low level of Pb exposure and are particularly visible with increasing of Pb. Co and Cr(III) are essential elements and harmful effects may be expected at their deficiency and/or overexposure.
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Affiliation(s)
- Urszula Marzec-Wróblewska
- Collegium Medicum in Bydgoszcz, Faculty of Medicine, Department of Medical and Biochemical Biology, Department of Ecology and Environmental Protection, Nicolaus Copernicus University in Toruń, M. Skłodowska-Curie St. 9, PL, 85-094, Bydgoszcz, Poland
- Collegium Medicum in Bydgoszcz, Faculty of Pharmacy, Chair and Department of Biopharmacy, Nicolaus Copernicus University in Toruń, dr. A. Jurasz St. 2, PL, 85-089, Bydgoszcz, Poland
| | - Piotr Kamiński
- Collegium Medicum in Bydgoszcz, Faculty of Medicine, Department of Medical and Biochemical Biology, Department of Ecology and Environmental Protection, Nicolaus Copernicus University in Toruń, M. Skłodowska-Curie St. 9, PL, 85-094, Bydgoszcz, Poland.
- Faculty of Biological Sciences, Department of Biotechnology, University of Zielona Góra, Prof. Szafran St. 1, PL, 65-516, Zielona Góra, Poland.
| | - Paweł Łakota
- Faculty of Animal Biology, Department of Animal Biotechnology, University of Technology and Life Sciences, Mazowiecka St. 28, 85-084, Bydgoszcz, Poland
| | - Marek Szymański
- Collegium Medicum in Bydgoszcz, Faculty of Medicine, University Hospital No. 2, Department of Obstetrics, Female Pathology and Oncological Gynecology, Nicolaus Copernicus University in Toruń, Ujejski St. 75, 85-168, Bydgoszcz, Poland
- NZOZ Medical Center Co. Prof. dr. hab. med. Wiesław Szymański, Dr. hab. med. Marek Szymański, Waleniowa St. 24, 85-435, Bydgoszcz, Poland
| | - Karolina Wasilow
- NZOZ Medical Center Co. Prof. dr. hab. med. Wiesław Szymański, Dr. hab. med. Marek Szymański, Waleniowa St. 24, 85-435, Bydgoszcz, Poland
- Collegium Medicum in Bydgoszcz, Faculty of Medicine, University Hospital No. 2, Family Medicine Clinic, Nicolaus Copernicus University in Toruń, Ujejski St. 75, 85-168, Bydgoszcz, Poland
| | - Grzegorz Ludwikowski
- Collegium Medicum in Bydgoszcz, Faculty of Medicine, University Hospital No. 2, Department of Clinical Andrology, Nicolaus Copernicus University in Toruń, Szpitalna St. 19, 85-092, Bydgoszcz, Poland
| | - Leszek Jerzak
- Faculty of Biological Sciences, Department of Nature Protection, University of Zielona Góra, Prof. Szafran St. 1, PL, 65-516, Zielona Góra, Poland
| | - Tomasz Stuczyński
- Faculty of Mathematics Informatics and Landscape Architecture, The John Paul II Catholic University of Lublin, Konstantynów 1 H, PL, 20-708, Lublin, Poland
| | - Alina Woźniak
- Collegium Medicum in Bydgoszcz, Department of Medical and Biochemical Biology, Nicolaus Copernicus University, Karłowicz St. 24, PL, 85-092, Bydgoszcz, Poland
| | - Adam Buciński
- Collegium Medicum in Bydgoszcz, Faculty of Pharmacy, Chair and Department of Biopharmacy, Nicolaus Copernicus University in Toruń, dr. A. Jurasz St. 2, PL, 85-089, Bydgoszcz, Poland
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16
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The effects of occupational lead exposure on selected inflammatory biomarkers. Arh Hig Rada Toksikol 2019; 70:36-41. [PMID: 30956219 DOI: 10.2478/aiht-2019-70-3214] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Accepted: 03/01/2019] [Indexed: 11/20/2022] Open
Abstract
In exposure to toxic metals such as lead, determining lead and cytokine levels (IL-6, IL-10, and TNF-α) is essential for early detection of diseases. The aim of this study was to develop an model for early detection of inflammation and onset of atherosclerosis in the absence of clinical findings in young workers, which could help physicians take timely an action and start treatment. This study included 49 metal workers exposed to lead occupationally and 50 unexposed administrative workers (controls) who underwent immunological analysis for cytokines (IL-6, IL-10, and TNF-α) and atherosclerosis markers (h-FABP and VCAM-1), toxicological analysis for lead, and routine biochemical analysis (ALT, AST, creatinine) at the Ankara Occupational and Environmental Diseases Hospital in 2017. Lead levels correlated with IL-6, IL-10, and TNF-α (r=0.469, r=0.521 and r=0.279, respectively, p<0.01) but did not significantly affect h-FABP and VCAM-1 levels.
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17
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Darbandi M, Darbandi S, Agarwal A, Baskaran S, Dutta S, Sengupta P, Khorram Khorshid HR, Esteves S, Gilany K, Hedayati M, Nobakht F, Akhondi MM, Lakpour N, Sadeghi MR. Reactive oxygen species-induced alterations in H19-Igf2 methylation patterns, seminal plasma metabolites, and semen quality. J Assist Reprod Genet 2019; 36:241-253. [PMID: 30382470 PMCID: PMC6420547 DOI: 10.1007/s10815-018-1350-y] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Accepted: 10/17/2018] [Indexed: 12/28/2022] Open
Abstract
PURPOSE This study was conducted in order to investigate the effects of reactive oxygen species (ROS) levels on the seminal plasma (SP) metabolite milieu and sperm dysfunction. METHODS Semen specimens of 151 normozoospermic men were analyzed for ROS by chemiluminescence and classified according to seminal ROS levels [in relative light units (RLU)/s/106 sperm]: group 1 (n = 39): low (ROS < 20), group 2 (n = 38): mild (20 ≤ ROS < 40), group 3 (n = 31): moderate (40 ≤ ROS < 60), and group 4 (n = 43): high (ROS ≥ 60). A comprehensive analysis of SP and semen parameters, including conventional semen characteristics, measurement of total antioxidant capacity (TAC), sperm DNA fragmentation index (DFI), chromatin maturation index (CMI), H19-Igf2 methylation status, and untargeted seminal metabolic profiling using nuclear magnetic resonance spectroscopy (1H-NMR), was carried out. RESULT(S) The methylation status of H19 and Igf2 was significantly different in specimens with high ROS (P < 0.005). Metabolic fingerprinting of these SP samples showed upregulation of trimethylamine N-oxide (P < 0.001) and downregulations of tryptophan (P < 0.05) and tyrosine/tyrosol (P < 0.01). High ROS significantly reduced total sperm motility (P < 0.05), sperm concentration (P < 0.001), and seminal TAC (P < 0.001) but increased CMI and DFI (P < 0.005). ROS levels have a positive correlation with Igf2 methylation (r = 0.19, P < 0.05), DFI (r = 0.40, P < 0.001), CMI (r = 0.39, P < 0.001), and trimethylamine N-oxide (r = 0.45, P < 0.05) and a negative correlation with H19 methylation (r = - 0.20, P < 0.05), tryptophan (r = - 0.45, P < 0.05), sperm motility (r = - 0.20, P < 0.05), sperm viability (r = - 0.23, P < 0.01), and sperm concentration (r = - 0.30, P < 0.001). CONCLUSION(S) Results showed significant correlation between ROS levels and H19-Igf2 gene methylation as well as semen parameters. These findings are critical to identify idiopathic male infertility and its management through assisted reproduction technology (ART).
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Affiliation(s)
- Mahsa Darbandi
- Department of Embryology and Andrology, Reproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, 1936773493, Iran
| | - Sara Darbandi
- Department of Embryology and Andrology, Reproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, 1936773493, Iran
| | - Ashok Agarwal
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, 44195, USA
| | - Saradha Baskaran
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, 44195, USA
| | - Sulagna Dutta
- Faculty of Dentistry, MAHSA University, 42610, Selangor, Malaysia
| | - Pallav Sengupta
- Department of Physiology, Faculty of Medicine, MAHSA University, 42610, Selangor, Malaysia
| | - Hamid Reza Khorram Khorshid
- Genetics Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, 1985713834, Iran
| | - Sandro Esteves
- ANDROFERT, Andrology and Human Reproduction Clinic, Campinas, 13075-460, Brazil
| | - Kambiz Gilany
- Department of Embryology and Andrology, Reproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, 1936773493, Iran
| | - Mehdi Hedayati
- Molecular Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University for Medical Sciences, Tehran, 1985717413, Iran
| | - Fatemeh Nobakht
- Department of Basic Medical Sciences, Neyshabur University of Medical Sciences, Nishabur, 9314634814, Iran
| | - Mohammad Mehdi Akhondi
- Monoclonal Antibody Research Center, Avicenna Research Institute (ARI), ACECR, Shahid Beheshti University, Evin, Tehran, 1936773493, Iran
| | - Niknam Lakpour
- Department of Embryology and Andrology, Reproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, 1936773493, Iran
| | - Mohammad Reza Sadeghi
- Monoclonal Antibody Research Center, Avicenna Research Institute (ARI), ACECR, Shahid Beheshti University, Evin, Tehran, 1936773493, Iran.
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18
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The Role of Oxidative Stress, Selected Metals, and Parameters of the Immune System in Male Fertility. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:6249536. [PMID: 30254715 PMCID: PMC6142782 DOI: 10.1155/2018/6249536] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Accepted: 08/14/2018] [Indexed: 01/09/2023]
Abstract
The aim of the study was to investigate the associations between standard semen parameters and the parameters reflecting oxidative stress intensity, antioxidant defense functions, levels of selected macro and trace elements, and parameters characterizing immune system function. The study group consisted of 103 fertile males. Based on semen volume, sperm concentration, total sperm count, and percentage of motile sperm at 1 hour postcollection, the individuals were divided into two equal groups—those with excellent (EX) semen quality and those with mediocre (ME) semen quality. The remaining measured parameters characterizing motility and the percentage of normal morphology were higher in the EX group than in the ME group; however, the seminal plasma pH did not differ between the examined groups. The phosphate level was 31% lower in the EX group than in the ME group, whereas there was a tendency toward a 25% lower level of Fe in the EX group than in the ME group (p = 0.064). The activities of enzymes involved in antioxidant defense, CuZn-SOD, CAT, and G6PD, were 14%, 63%, and 39%, respectively, higher in the EX group than in the ME group. However, the level of alpha-tocopherol was 32% lower in the EX group than in the ME group. The other measured parameters characterizing antioxidant defense and the parameters of oxidative stress intensity and immune system function were not significantly different. The value of seminal plasma pH is not related to the semen quality of fertile males. Higher fertility potential estimated based on standard semen parameters in fertile males is associated with lower levels of Fe and higher activities of some antioxidant enzymes.
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Xu X, Cui Z, Wang S. Joint toxicity on hepatic detoxication enzymes in goldfish (Carassius auratus) exposed to binary mixtures of lead and paraquat. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2018; 62:60-68. [PMID: 29986279 DOI: 10.1016/j.etap.2018.06.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 06/17/2018] [Accepted: 06/20/2018] [Indexed: 06/08/2023]
Abstract
Compared to single exposure, chemical mixtures might induce joint toxicity including additive, synergistic and antagonistic effects on both organisms and environment. Owing to the specific toxicity of oxidative stress and binding to proteins, lead (Pb) is generally recognized a non-essential and threatening heavy metal to animals and human. Paraquat (PQ) is a widely used herbicide in agriculture and can trigger oxidative stress as well as Pb. Little information was available about joint effects of the two chemicals on toxicological responses in organisms, especially in fish. In our present study, goldfish (Carassius auratus) were randomly exposed to single and combined experiments with different concentrations of Pb and PQ for 28 days. Activities of four enzyme biomarkers in liver, ethoxyresorufin-O-deethylase (EROD), 7-benzyloxy-4-trifluoromethyl-coumarin-O-debenzyloxylase (BFCOD), glutathione-S-transferase (GST) and UDP-glucuronosyltransferase (UGT) were evaluated in each experimental group on day 14 and 28. The results showed four enzyme levels were markedly reduced with the increase of concentrations in mixtures and prolonged exposure. The inhibitory EROD and BFCOD activities were not significantly changed in goldfish following PQ-treated groups with or without 0.5 mg/L Pb, which indicated PQ has more inhibitory toxicity on CYP450 enzymes than Pb in co-exposure groups. However, the reduced values of GST were observed only in the combinations containing high doses of Pb or PQ during experimental periods. Although the responses of UGT activity were similar to GST on 14th day, all combinations of Pb and PQ generated stronger inhibitions on UGT activities compared to individual Pb and PQ-treated group. These results suggested that combined exposure of Pb and PQ have more inhibitory toxicity on phase I enzymes than phase II enzymes.
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Affiliation(s)
- Xiaoming Xu
- School of Environmental Science and Engineering, Shandong University, Jinan, 250100, China; School of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan, 250101, China
| | - Zhaojie Cui
- School of Environmental Science and Engineering, Shandong University, Jinan, 250100, China.
| | - Shanshan Wang
- School of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan, 250101, China
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20
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Sümer Ercan F, Ercan N, Demirezen Yilmaz D. Effect of heavy metal stress on antioxidant enzymes and DNA damage in Nasturtium officinale R.Br. (watercress). TOXIN REV 2018. [DOI: 10.1080/15569543.2018.1471091] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Affiliation(s)
- Fahriye Sümer Ercan
- Department of Plant Protection, Faculty of Agriculture, Ahi Evran University, Kırşehir, Turkey
| | - Nuri Ercan
- Faculty of Agriculture, Ahi Evran University, Kırşehir, Turkey
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BaSalamah MA, Abdelghany AH, El-Boshy M, Ahmad J, Idris S, Refaat B. Vitamin D alleviates lead induced renal and testicular injuries by immunomodulatory and antioxidant mechanisms in rats. Sci Rep 2018; 8:4853. [PMID: 29556070 PMCID: PMC5859277 DOI: 10.1038/s41598-018-23258-w] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Accepted: 03/08/2018] [Indexed: 11/09/2022] Open
Abstract
This study measured the effects of vitamin D (VD) supplementation on the underlying molecular pathways involved in renal and testicular damage induced by lead (Pb) toxicity. Thirty two adult male Wistar rats were divided equally into four groups that were treated individually or simultaneously, except the negative control, for four weeks with lead acetate in drinking water (1,000 mg/L) and/or intramuscular VD (1,000 IU/kg; 3 days/week). Pb toxicity markedly reduced serum VD and Ca2+, induced substantial renal and testicular injuries with concomitant significant alterations in the expression of VD metabolising enzymes, its receptor and binding protein, and the calcium sensing receptor. Pb also significantly promoted lipid peroxidation and pro-inflammatory cytokines (IL-4 and TNF-α) in the organs of interest concomitantly with declines in several anti-oxidative markers (glutathione, glutathione peroxidase and catalase) and the anti-inflammatory cytokine, IL-10. The co-administration of VD with Pb markedly mitigated renal and testicular injuries compared with positive controls. This was associated with restoration of the expression of VD related molecules, promotion of anti-oxidative and anti-inflammatory markers, but tissue Pb concentrations were unaffected. In conclusion, this report is the first to reveal potential protective effects for VD against Pb-induced renal and testicular injuries via anti-inflammatory and anti-oxidative mechanisms.
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Affiliation(s)
- Mohammad A BaSalamah
- Pathology Department, Faculty of Medicine, Umm Al-Qura University, Al Abdeyah, Makkah, Saudi Arabia
| | - Abdelghany Hassan Abdelghany
- Department of Anatomy, Faculty of Medicine, Alexandria University, Alexandria, Egypt.,Laboratory Medicine Department, Faculty of Applied Medical Sciences, Umm Al-Qura University, Al Abdeyah, PO Box, 7607, Makkah, Saudi Arabia
| | - Mohamed El-Boshy
- Laboratory Medicine Department, Faculty of Applied Medical Sciences, Umm Al-Qura University, Al Abdeyah, PO Box, 7607, Makkah, Saudi Arabia.,Department of Clinical Pathology, Faculty of Veterinary Medicine, Mansoura University, Mansoura, Egypt
| | - Jawwad Ahmad
- Laboratory Medicine Department, Faculty of Applied Medical Sciences, Umm Al-Qura University, Al Abdeyah, PO Box, 7607, Makkah, Saudi Arabia
| | - Shakir Idris
- Laboratory Medicine Department, Faculty of Applied Medical Sciences, Umm Al-Qura University, Al Abdeyah, PO Box, 7607, Makkah, Saudi Arabia
| | - Bassem Refaat
- Laboratory Medicine Department, Faculty of Applied Medical Sciences, Umm Al-Qura University, Al Abdeyah, PO Box, 7607, Makkah, Saudi Arabia.
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22
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Roy A, Kordas K. The Relation Between Low-Level Lead Exposure and Oxidative Stress: a Review of the Epidemiological Evidence in Children and Non-Occupationally Exposed Adults. Curr Environ Health Rep 2018; 3:478-492. [PMID: 27726071 DOI: 10.1007/s40572-016-0115-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Experimental studies in animals and observational studies in occupationally exposed adults indicate that higher lead exposure results in higher biomarkers of oxidative stress. However, this evidence cannot be extended to the general population who typically experience lower levels of lead exposure. This systematic review evaluates the epidemiological evidence on the association between lead and oxidative stress in non-occupationally exposed general population, with a particular focus on the pediatric population. Studies were identified through a systematic search of Medline and Web of Science. Ultimately, evidence from 15 studies conducted in children and 22 studies in adults from the general population was reviewed. Overall, the published findings are inconsistent, and there are very few well-designed studies on the relation between lead exposure and oxidative stress in the general population. The strength of the current evidence is discussed in light of the methodological approaches employed, and recommendations are made for future research directions. These include designing prospective studies with repeat measurements of clinically relevant oxidative stress markers to answer the question of causality and sensitive windows and reanalyzing previously published data, but using multivariable statistical approaches and adjustment for relevant explanatory factors.
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Affiliation(s)
- Aditi Roy
- Department of Nutritional Sciences, Pennsylvania State University, University Park, State College, PA, USA. .,Department of Pediatrics, Division of General Pediatrics, Center for Asthma and Environmental Health Research, Vanderbilt University School of Medicine, Nashville, TN, USA.
| | - Katarzyna Kordas
- Department of Nutritional Sciences, Pennsylvania State University, University Park, State College, PA, USA.,Department of Epidemiology and Environmental Health, School of Public Health and Health Professions, State University of New York, Buffalo, NY, USA
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23
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Shi Z, Zhen S, Orsini N, Zhou Y, Zhou Y, Liu J, Taylor AW. Association between dietary lead intake and 10-year mortality among Chinese adults. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:12273-12280. [PMID: 28357790 DOI: 10.1007/s11356-017-8871-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2016] [Accepted: 03/20/2017] [Indexed: 06/06/2023]
Abstract
Blood lead level is associated with increased risk of mortality, but dietary lead exposure and mortality, particularly with cancer, has not been studied in the general population. The objective of the study was to assess the association between lead intake and 10-year mortality among 2832 Chinese adults. Food intake was measured by 3-day weighed food record in 2002. We documented 184 deaths (63 cancer deaths and 70 cardiovascular disease (CVD) deaths) during 27,742 person-years of follow-up. Dietary lead intake was positively associated with cancer and all-cause mortality. Across quartiles of lead intake, hazard ratios (HRs) for cancer mortality were 1.00, 0.80 (0.33-1.92), 1.52 (0.65-3.56), and 3.00 (1.06-8.44) (p for trend 0.028). HRs for all-cause mortality were 1.00, 1.28 (0.83-1.98), 1.24 (0.78-1.97), and 2.24 (1.28-3.94) (p for trend 0.011). Each 30 μg/day increase of lead intake was associated with 25% (95% CI 3-52%) increase of all-cause mortality. There was an interaction between lead intake and hypertension in relation to CVD mortality (p for interaction 0.003): HRs conferred by every 30 μg/day of lead intake were 1.57 (0.98-2.52) and 1.06 (0.81-1.39) among those with or without hypertension. Dietary lead intake was positively related to cancer and all-cause mortality.
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Affiliation(s)
- Zumin Shi
- Department of Nutrition and Foodborne Disease Prevention, Jiangsu Provincial Centre for Disease Control and Prevention, Nanjing, China.
- Discipline of Medicine, University of Adelaide, L7 SAHMRI, North Terrace, Adelaide, 5000, Australia.
- Discipline of Medicine, University of Adelaide, 122 Frome Street, Adelaide, 5005, Australia.
| | - Shiqi Zhen
- Department of Nutrition and Foodborne Disease Prevention, Jiangsu Provincial Centre for Disease Control and Prevention, Nanjing, China
| | - Nicola Orsini
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Yonglin Zhou
- Department of Nutrition and Foodborne Disease Prevention, Jiangsu Provincial Centre for Disease Control and Prevention, Nanjing, China
| | - Yijing Zhou
- Department of Nutrition and Foodborne Disease Prevention, Jiangsu Provincial Centre for Disease Control and Prevention, Nanjing, China
| | - Jianghong Liu
- University of Pennsylvania School of Nursing, Philadelphia, PA, USA
| | - Anne W Taylor
- Discipline of Medicine, University of Adelaide, L7 SAHMRI, North Terrace, Adelaide, 5000, Australia
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24
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Analysis of Serum Cytokines and Single-Nucleotide Polymorphisms of SOD1, SOD2, and CAT in Erysipelas Patients. J Immunol Res 2017; 2017:2157247. [PMID: 28512644 PMCID: PMC5420430 DOI: 10.1155/2017/2157247] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Accepted: 03/21/2017] [Indexed: 12/13/2022] Open
Abstract
Increased free radical production had been documented in group A (β-hemolytic) streptococcus infection cases. Comparing 71 erysipelas patients to 55 age-matched healthy individuals, we sought for CAT, SOD1, and SOD2 single polymorphism mutation (SNPs) interactions with erysipelas' predisposition and serum cytokine levels in the acute and recovery phases of erysipelas infection. Whereas female patients had a higher predisposition to erysipelas, male patients were prone to having a facial localization of the infection. The presence of SOD1 G7958, SOD2 T2734, and CAT C262 alleles was linked to erysipelas' predisposition. T and C alleles of SOD2 T2734C individually were linked to patients with bullous and erythematous erysipelas, respectively. G and A alleles of SOD1 G7958A individually were associated with lower limbs and higher body part localizations of the infection, respectively. Serum levels of IL-1β, CCL11, IL-2Rα, CXCL9, TRAIL, PDGF-BB, and CCL4 were associated with symptoms accompanying the infection, while IL-6, IL-9, IL-10, IL-13, IL-15, IL-17, G-CSF, and VEGF were associated with predisposition and recurrence of erysipelas. While variations of IL-1β, IL-7, IL-8, IL-17, CCL5, and HGF were associated with the SOD2 T2734C SNP, variations of PDFG-BB and CCL2 were associated with the CAT C262T SNP.
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25
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Sperm quality and oxidative status as affected by homogenization of liquid-stored boar semen diluted in short- and long-term extenders. Anim Reprod Sci 2017; 179:67-79. [DOI: 10.1016/j.anireprosci.2017.02.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Revised: 02/07/2017] [Accepted: 02/09/2017] [Indexed: 12/11/2022]
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26
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Impaired hypothalamic-pituitary-testicular axis activity, spermatogenesis, and sperm function promote infertility in males with lead poisoning. ZYGOTE 2017; 25:103-110. [PMID: 28185602 DOI: 10.1017/s0967199417000028] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Lead poisoning is a stealthy threat to human physiological systems as chronic exposure can remain asymptomatic for long periods of time before symptoms manifest. We presently review the biophysical mechanisms of lead poisoning that contribute to male infertility. Environmental and occupational exposure of lead may adversely affect the hypothalamic-pituitary-testicular axis, impairing the induction of spermatogenesis. Dysfunction at the reproductive axis, namely testosterone suppression, is most susceptible and irreversible during pubertal development. Lead poisoning also appears to directly impair the process of spermatogenesis itself as well as sperm function. Spermatogenesis issues may manifest as low sperm count and stem from reproductive axis dysfunction or testicular degeneration. Generation of excessive reactive oxygen species due to lead-associated oxidative stress can potentially affect sperm viability, motility, DNA fragmentation, membrane lipid peroxidation, capacitation, hyperactivation, acrosome reaction, and chemotaxis for sperm-oocyte fusion, all of which can contribute to deter fertilization. Reproductive toxicity has been tested through cross-sectional analysis studies in humans as well as in vivo and in vitro studies in animals.
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27
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Liu X, Ye J, Wang L, Li Z, Zhang Y, Sun J, Du C, Wang C, Xu S. Protective Effects of PGC-1α Against Lead-Induced Oxidative Stress and Energy Metabolism Dysfunction in Testis Sertoli Cells. Biol Trace Elem Res 2017; 175:440-448. [PMID: 27392955 DOI: 10.1007/s12011-016-0799-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Accepted: 07/04/2016] [Indexed: 12/06/2022]
Abstract
The reproductive system is sensitive to lead (Pb) toxicity, which has long been an area of research interest, but the underlying mechanisms remain to be illustrated. Peroxisome proliferator-activated receptor γ coactivator 1α (PGC-1α) is pivotal in mitochondrial function. In this study, mouse testis Sertoli cells (TM4 cells), PGC-1α lower-expression (PGC-1α(-)) TM4 cells and PGC-1α overexpression (PGC-1α(+)) TM4 cells were used to explore the protective roles of PGC-1α against lead toxicity on the mouse reproductive system. Lead acetate (PbAc) exposure decreased the expression level of PGC-1α, increased the intracellular level of reactive oxygen species (ROS), and reduced the level of ATP in the three TM4 cell lines. The effects of PbAc on intracellular ATP level and on ROS content were significantly weakened in PGC-1α(+)TM4 cells versus TM4 cells and were significantly amplified in PGC-1α(-)TM4 cells versus TM4 cells. These results suggest that PGC-1α is a protective factor against PbAc-induced oxidative stress and energy metabolism dysfunction in the mouse reproductive system, thereby holding the potential of being developed as a preventive or therapeutic strategy against disorders induced by lead exposure.
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Affiliation(s)
- Xi Liu
- Department of Toxicology, School of Public Health, Wuhan University, DongHu Road 115, Wuhan, 430071, People's Republic of China
| | - Jingping Ye
- Department of Toxicology, School of Public Health, Wuhan University, DongHu Road 115, Wuhan, 430071, People's Republic of China
- Renmin hospital of Wuhan University, Wuhan, 430060, People's Republic of China
| | - Lu Wang
- Department of Toxicology, School of Public Health, Wuhan University, DongHu Road 115, Wuhan, 430071, People's Republic of China
| | - Zhen Li
- Department of Toxicology, School of Public Health, Wuhan University, DongHu Road 115, Wuhan, 430071, People's Republic of China
| | - Yucheng Zhang
- Department of Toxicology, School of Public Health, Wuhan University, DongHu Road 115, Wuhan, 430071, People's Republic of China
| | - Jiantao Sun
- Department of Toxicology, School of Public Health, Wuhan University, DongHu Road 115, Wuhan, 430071, People's Republic of China
| | - Chuang Du
- Department of Toxicology, School of Public Health, Wuhan University, DongHu Road 115, Wuhan, 430071, People's Republic of China
| | - Chunhong Wang
- Department of Toxicology, School of Public Health, Wuhan University, DongHu Road 115, Wuhan, 430071, People's Republic of China.
| | - Siyuan Xu
- Hubei Provincial Key Laboratory for Applied Toxicology, Hubei Provincial Academy for Preventive Medicine, Wuhan, 430079, People's Republic of China.
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28
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Bergamo P, Volpe MG, Lorenzetti S, Mantovani A, Notari T, Cocca E, Cerullo S, Di Stasio M, Cerino P, Montano L. Human semen as an early, sensitive biomarker of highly polluted living environment in healthy men: A pilot biomonitoring study on trace elements in blood and semen and their relationship with sperm quality and RedOx status. Reprod Toxicol 2016; 66:1-9. [DOI: 10.1016/j.reprotox.2016.07.018] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Revised: 07/04/2016] [Accepted: 07/29/2016] [Indexed: 10/21/2022]
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29
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Bal C, Ağış ER, Gündüzöz M, Büyükşekerci M, Alışık M, Şen O, Tutkun E, Yılmaz ÖH. Dynamic disulfide/thiol homeostasis in lead exposure denoted by a novel method. Toxicol Ind Health 2016; 33:426-430. [DOI: 10.1177/0748233716664852] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Lead is a toxic heavy metal, and prevention of human exposure to lead has not been accomplished yet. The toxicity of lead is continually being investigated, and the molecular mechanisms of its toxicity are still being revealed. In this study, we used a novel method to examine thiol (SH)/disulfide homeostasis in workers who were occupationally exposed to lead. A total of 80 such workers and 70 control subjects were evaluated, and their native and total SH values were measured in serum using a novel method; their blood lead levels were also assessed. The novel method used for SH measurements was based on the principle of measuring native SH, after which disulfide bonds were reduced and total SHs were measured. These measurements allowed us to calculate disulfide amounts, disulfide/total SH percent ratios, disulfide/native SH percent ratios, and native SH /total SH percent ratios. We found that disulfide levels were significantly higher in workers who were exposed to lead (21.08(11.1–53.6) vs. 17.9(1.7–25), p < 0.001). Additionally, the disulfide/native SH and disulfide/total SH percent ratios were higher in exposed workers, while the native SH/total SH percent ratios were higher in the control subjects. Furthermore, the lead and disulfide levels showed a positive correlation, with p < 0.001 and a correlation coefficient of 0.378. Finally, the novel method used in this study successfully showed a switch from SH to disulfide after lead exposure, and the method is fully automated, easy, cheap, reliable, and reproducible. Use of this method in future cases may provide valuable insights into the management of lead exposure.
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Affiliation(s)
- Ceylan Bal
- Department of Biochemistry, Yıldırım Beyazıt University, Ankara, Turkey
| | - Erol Rauf Ağış
- Department of Pharmacology, Occupational Diseases Hospital, Ankara, Turkey
| | - Meşide Gündüzöz
- Department of Family Medicine, Occupational Diseases Hospital, Ankara
| | - Murat Büyükşekerci
- Department of Pharmacology, Occupational Diseases Hospital, Ankara, Turkey
| | - Murat Alışık
- Department of Biochemistry, Atatürk Educational and Research Hospital, Ankara, Turkey
| | - Orhan Şen
- Department of Biochemistry, Atatürk Educational and Research Hospital, Ankara, Turkey
| | - Engin Tutkun
- Department of Public Health, Bozok University, Yozgat, Turkey
| | - Ömer Hınç Yılmaz
- Department of Public Health, Yıldırım Beyazıt University, Ankara, Turkey
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MiOXSYS: a novel method of measuring oxidation reduction potential in semen and seminal plasma. Fertil Steril 2016; 106:566-573.e10. [PMID: 27260688 DOI: 10.1016/j.fertnstert.2016.05.013] [Citation(s) in RCA: 94] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Revised: 04/22/2016] [Accepted: 05/16/2016] [Indexed: 12/20/2022]
Abstract
OBJECTIVE To measure oxidative reduction potential (ORP) in semen and seminal plasma and to establish their reference levels. DESIGN ORP levels were measured in semen and seminal plasma. SETTING Tertiary hospital. SUBJECT(S) Twenty-six controls and 33 infertile men. INTERVENTION(S) None. MAIN OUTCOME MEASURE(S) Static ORP (sORP) and capacitance ORP (cORP) were measured in semen and seminal plasma at time 0 and 120 minutes. Correlation of ORP was assessed between [1] semen and seminal plasma and [2] time 0 and 120 minutes. The association with sperm parameters was studied in (a) controls and (b) infertile patients, and a receiver operating characteristic curve was generated to establish the sORP cutoff. RESULT(S) Semen sORP and cORP levels were associated with seminal plasma levels at time 0 and time 120 minutes. In controls and infertile patients, an inverse relationship of sORP levels was established with concentration and total sperm count in semen as well as seminal plasma at time 0 and 120 minutes. Classification of subjects based on sperm motility showed that subjects with abnormal motility present with poor concentration, total count, morphology, and elevated levels of semen and seminal plasma sORP at time 120 minutes. The sORP cutoff of 1.48 in semen and 2.09 in seminal plasma based on motility was able to distinguish subjects with normal semen quality from those with abnormal semen quality. CONCLUSION(S) The MiOXSYS System can reliably measure ORP levels in semen and seminal plasma. ORP levels are not affected by semen age, making this new technology easy to employ in a clinical setting.
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Roychoudhury S, Sharma R, Sikka S, Agarwal A. Diagnostic application of total antioxidant capacity in seminal plasma to assess oxidative stress in male factor infertility. J Assist Reprod Genet 2016; 33:627-635. [PMID: 26941096 DOI: 10.1007/s10815-016-0677-5] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Accepted: 02/11/2016] [Indexed: 11/25/2022] Open
Abstract
PURPOSE This study was undertaken in order to establish a new reference value for the total antioxidant capacity (TAC) in seminal plasma as a predictor of fertility. This study also aims to propose a detailed protocol for the TAC assay including calculation of assay results and assessment of sensitivity and specificity over possible cutoff values in infertile men and controls with proven and unproven fertility. METHODS Seminal plasma from 279 infertile patients and 46 normal healthy men referred to a male infertility testing laboratory were tested to measure TAC by a colorimetric assay kit. Receiver operating characteristics (ROC) curves were generated to establish cutoff values, sensitivity, and specificity, and the distribution of cutoff values in controls and infertile patients was calculated. RESULTS Infertile patients showed significantly lower levels (mean ± SEM) of total antioxidants (micromolar Trolox equivalents) in their seminal plasma (1863.84 ± 27.16 μM) compared to those from fertile men (2013 ± 56.04 μM, P = 0.019). A preferred cutoff TAC value of 1947 μM could facilitate better diagnosis of oxidative stress (OS) in men with male factor infertility. At this threshold, the specificity of TAC assay was 63.0 % and the sensitivity 59.5 % with a positive predictive value of 90.7 % and a negative predictive value of 20.4 %. CONCLUSIONS Our results establish a new diagnostic cutoff TAC value of 1947 μM in seminal plasma to distinguish prevalence of OS in infertile patients compared to healthy men. This study provides a robust reference value of seminal plasma TAC that may provide an important diagnostic tool to the physicians for managing OS and male factor infertility in such patients.
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Affiliation(s)
- Shubhadeep Roychoudhury
- American Center for Reproductive Medicine, Cleveland Clinic, 10681 Carnegie Avenue, Desk X11, Cleveland, OH, 44195, USA
- Department of Life Science and Bioinformatics, Assam University, Silchar, 788011, India
| | - Rakesh Sharma
- American Center for Reproductive Medicine, Cleveland Clinic, 10681 Carnegie Avenue, Desk X11, Cleveland, OH, 44195, USA
| | - Suresh Sikka
- Tulane University Health Sciences Center, New Orleans, LA, 70112-2699, USA
| | - Ashok Agarwal
- American Center for Reproductive Medicine, Cleveland Clinic, 10681 Carnegie Avenue, Desk X11, Cleveland, OH, 44195, USA.
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Ferulic Acid Protects Against Lead Acetate-Induced Inhibition of Neurite Outgrowth by Upregulating HO-1 in PC12 Cells: Involvement of ERK1/2-Nrf2 Pathway. Mol Neurobiol 2015; 53:6489-6500. [DOI: 10.1007/s12035-015-9555-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Accepted: 11/19/2015] [Indexed: 12/28/2022]
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