1
|
An Q, Wang Q, Liu R, Zhang J, Li S, Shen W, Zhou H, Liang Y, Li Y, Mu L, Lei L. Analysis of relationship between mixed heavy metal exposure and early renal damage based on a weighted quantile sum regression and Bayesian kernel machine regression model. J Trace Elem Med Biol 2024; 84:127438. [PMID: 38520795 DOI: 10.1016/j.jtemb.2024.127438] [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: 12/14/2023] [Revised: 03/18/2024] [Accepted: 03/18/2024] [Indexed: 03/25/2024]
Abstract
BACKGROUND Occupation, environmental heavy metal exposure, and renal function impairment are closely related. The relationship between mixed metal exposure and chronic renal injury is inadequately described, and the interaction between each metal is poorly explored. OBJECTIVE This cross-sectional study assessed mixed heavy metal exposure in the general population and their relationship with early renal impairment, as well as possible interactions between metals. METHODS The study was conducted in two communities in Taiyuan City in northern China. Multiple linear regression, weighted quantile sum (WQS) and bayesian kernel machine regression (BKMR) regression were used to explore the relationship of mixed heavy metal exposure with indicators of early kidney injury (N-acetyl-β-D- glucosidase (UNAG), urinary albumin (UALB)). Meanwhile, BKMR was used to explore the possible interactions between mixed heavy metal and indicators of early kidney injury. RESULTS Based on the WQS regression results, we observed adjusted WQS coefficient β (β-WQS) of 0.711 (95% CI: 0.543, 0.879). Notably, this change was primarily driven by As (35.6%) and Cd (22.5%). In the UALB model, the adjusted β-WQS was 0.657 (95% CI: 0.567, 0.747), with Ni (30.5%), Mn (22.1%), Cd (21.2%), and As (18.6%) exhibiting higher weights in the overall effect. The BKMR results showed a negative interaction between As and other metals in the UNAG and UALB models, a positive interaction between Mn and Ni and other metals. No significant pairwise interaction was observed in the association of metals with indicators of early kidney injury. CONCLUSION Through multiple linear regression, WQS regression, and BKMR analyses, we found that exposure to mixed heavy metals such as Cd, Cr, Pb, Mn, As, Co and Ni was positively correlated with UNAG and UALB. Moreover, there are complex interactions between two or more heavy metals in more than one direction.
Collapse
Affiliation(s)
- Qi An
- Department of Epidemiology, School of Public Health, Shanxi Medical University, Taiyuan 030001, China; Key Laboratory of Coal Environmental Pathogenicity and Prevention (Shanxi Medical University), Ministry of Education, Taiyuan 030001, China
| | - Qingyao Wang
- Department of Epidemiology, School of Public Health, Shanxi Medical University, Taiyuan 030001, China; Key Laboratory of Coal Environmental Pathogenicity and Prevention (Shanxi Medical University), Ministry of Education, Taiyuan 030001, China
| | - Rujie Liu
- Department of Epidemiology, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - Jiachen Zhang
- Department of Epidemiology, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - Shuangjing Li
- Department of Epidemiology, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - Weitong Shen
- Department of Epidemiology, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - Han Zhou
- Department of Epidemiology, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - Yufen Liang
- Department of Epidemiology, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - Yang Li
- Department of Epidemiology, School of Public Health, Shanxi Medical University, Taiyuan 030001, China; Key Laboratory of Coal Environmental Pathogenicity and Prevention (Shanxi Medical University), Ministry of Education, Taiyuan 030001, China
| | - Lina Mu
- Department of Epidemiology and Environmental Health, School of Public Health and Health Professions, The State University of New York at Buffalo, Buffalo, NY 14214, USA
| | - Lijian Lei
- Department of Epidemiology, School of Public Health, Shanxi Medical University, Taiyuan 030001, China; Key Laboratory of Coal Environmental Pathogenicity and Prevention (Shanxi Medical University), Ministry of Education, Taiyuan 030001, China.
| |
Collapse
|
2
|
Gandhi D, Rudrashetti AP, Rajasekaran S. The impact of environmental and occupational exposures of manganese on pulmonary, hepatic, and renal functions. J Appl Toxicol 2021; 42:103-129. [PMID: 34237170 DOI: 10.1002/jat.4214] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 06/14/2021] [Accepted: 06/14/2021] [Indexed: 12/15/2022]
Abstract
Manganese (Mn) is an essential trace element for humans, but long-term environmental or occupational exposures can lead to numerous health problems. Although many studies have identified an association between Mn exposures and neurological abnormalities, emerging data suggest that occupationally and environmentally relevant levels of Mn may also be linked to multiple organ dysfunction in the general population. In this regard, many experimental and clinical studies provide support for a causal link between Mn exposure and structural and functional changes that are responsible for organ dysfunction in major organs like lung, liver, and kidney. The underlying mechanisms suggested to Mn toxicity include altered activities of the components of intracellular signaling cascades, oxidative stress, apoptosis, affected cell cycle regulation, autophagy, angiogenesis, and an inflammatory response. We further discussed the sources and possible mechanisms of Mn absorption and distribution in different organs. Finally, treatment strategies available for treating Mn toxicity as well as directions for future studies were discussed.
Collapse
Affiliation(s)
- Deepa Gandhi
- Department of Biochemistry, ICMR-National Institute for Research in Environmental Health, Bhopal, India
| | | | - Subbiah Rajasekaran
- Department of Biochemistry, ICMR-National Institute for Research in Environmental Health, Bhopal, India
| |
Collapse
|
3
|
Mostafa HES, Alaa El-Din EA, El-Shafei DA, Abouhashem NS, Abouhashem AA. Protective roles of thymoquinone and vildagliptin in manganese-induced nephrotoxicity in adult albino rats. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:31174-31184. [PMID: 33595798 DOI: 10.1007/s11356-021-12997-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 02/11/2021] [Indexed: 06/12/2023]
Abstract
Despite being important in the body's mechanisms, excessive accumulation of manganese (Mn) can induce severe toxicity in vital organs of the body. Thymoquinone (TQ) is extracted from Nigella sativa seeds which recently gained popularity as dietary supplements and plant-based antioxidants. Vildagliptin (VLD) is a dipeptidyl peptidase IV (DPPIV) inhibitor, approved as anti-hyperglycemic agents with cardioprotective and renoprotective effects. The present study aimed to investigate the nephrotoxicity of Mn and the potential protective effects of thymoquinone and vildagliptin. Sixty-four adult male albino rats were equally divided into 8 groups: group I (control, received no medication), group II (vehicle, received normal saline), group III (TQ, 50 mg/kg/day), group IV (VLD, 10 mg/kg/day), group V (MnCl2, 50 mg/kg/day), group VI (Mn+TQ), group VII (Mn+VLD), and group VIII (Mn+TQ+VLD). Groups VI, VII, and VIII, received the same previously mentioned doses. All drugs were orally gavaged for 12 weeks. Manganese administration resulted in an elevation in the levels of serum and tissues Mn, blood glucose, serum urea, creatinine, tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), and reduction in insulin, kidney superoxide dismutase (SOD), glutathione (GSH), and interleukin-10. Histopathological structural renal damage was detected associated with strong positive immunoexpression of caspase-3. On the other hand, individual or combined TQ and VLD administration with Mn significantly decreased the serum and tissue levels of Mn, declined the blood glucose, inflammatory markers, oxidative stress markers, ameliorated the histopathological effects, and down-regulated the immunoexpression of caspase-3. In conclusion, TQ and VLD co-administration elicited protective effects against Mn-induced nephrotoxicity.
Collapse
Affiliation(s)
- Heba El-Sayed Mostafa
- Department of Forensic Medicine and Clinical Toxicology, Faculty of Medicine, Zagazig University, Zagazig, 44519, Egypt
| | - Eman Ahmed Alaa El-Din
- Department of Forensic Medicine and Clinical Toxicology, Faculty of Medicine, Zagazig University, Zagazig, 44519, Egypt.
| | - Dalia Abdallah El-Shafei
- Department of Community, Environmental & Occupational Medicine, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Nehal S Abouhashem
- Department of Pathology, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Aisha Abdallah Abouhashem
- Department of Forensic Medicine and Clinical Toxicology, Faculty of Medicine, Zagazig University, Zagazig, 44519, Egypt
| |
Collapse
|
4
|
Akintunde JK, Oboh G. Nephritic cell damage and antioxidant status in rats exposed to leachate from battery recycling industry. Interdiscip Toxicol 2017; 9:1-11. [PMID: 28652841 PMCID: PMC5458108 DOI: 10.1515/intox-2016-0001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Revised: 03/05/2016] [Accepted: 03/07/2016] [Indexed: 01/09/2023] Open
Abstract
Limited studies have assessed the toxic effect of sub-acute and sub-chronic exposure of leachate (mixture of metals) in mammalian kidney. The sub-acute and sub-chronic exposure of mature male Wistar-strain albino rats (200–220 g) were given by oral administration with leachate from Elewi Odo municipal battery recycling industry (EOMABRIL) for period of 7 and 60 days respectively, at different concentrations (20%, 40%, 60%, 80% and 100%). This was to evaluate its toxic effects on male renal functions using biomarkers of oxidative stress and nephro-cellular damage. Control groups were treated equally, but given distilled water instead of the leachate. All the groups were fed with the same standard food and had free access to drinking water. Following the exposure, results showed that the treatment induced systemic toxicity at the doses tested by causing a significant (p<0.05) alteration in enzymatic antioxidants-catalase (CAT) and superoxide dismutase (SOD) in the kidneys which resulted into elevated levels of malonaldehyde (MDA). Reduced glutathione (GSH) levels were found to be significantly (p<0.05) depleted relative to the control group. Considerable renal cortical congestion and numerous tubules with protein casts were observed in the lumen of EOMABRIL-treated rats. These findings conclude that possible mechanism by which EOMABRIL at the investigated concentrations elicits nephrotoxicity could be linked to the individual, additive, synergistic or antagonistic interactions of this mixture of metals with the renal bio-molecules, alteration of kidney detoxifying enzymes and necrosis of nephritic tubular epithelial cells.
Collapse
Affiliation(s)
- Jacob K Akintunde
- Toxicology and Safety Unit, Department of Environmental Health Sciences, Faculty of Public Health, College of Medicine, University of Ibadan, Ibadan, Nigeria.,Functional Foods, Nutraceuticals and Phytomedicine Research Laboratory, Department of Biochemistry, Federal University of Technology, Akure, Nigeria
| | - Ganiyu Oboh
- Functional Foods, Nutraceuticals and Phytomedicine Research Laboratory, Department of Biochemistry, Federal University of Technology, Akure, Nigeria
| |
Collapse
|
5
|
Abstract
Urolithiasis affects around 10% of the US population with an increasing rate of prevalence, recurrence and penetrance. The causes for the formation of most urinary calculi remain poorly understood, but obtaining the chemical composition of these stones might help identify key aspects of this process and new targets for treatment. The majority of urinary stones are composed of calcium that is complexed in a crystalline matrix with organic and inorganic components. Surprisingly, mitigation of urolithiasis risk by altering calcium homeostasis has not been very effective. Thus, studies to identify other therapeutic stone-specific targets, using proteomics, metabolomics and microscopy techniques, have been conducted, revealing a high level of complexity. The data suggest that numerous metals other than calcium and many nonmetals are present within calculi at measurable levels and several have distinct distribution patterns. Manipulation of the levels of some of these elemental components of calcium-based stones has resulted in clinically beneficial changes in stone chemistry and rate of stone formation. The elementome--the full spectrum of elemental content--of calcium-based urinary calculi is emerging as a new concept in stone research that continues to provide important insights for improved understanding and prevention of urinary stone disease.
Collapse
|
6
|
Słojewski M. Major and trace elements in lithogenesis. Cent European J Urol 2011; 64:58-61. [PMID: 24578864 PMCID: PMC3921713 DOI: 10.5173/ceju.2011.02.art1] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2011] [Revised: 02/19/2011] [Accepted: 02/24/2011] [Indexed: 01/29/2023] Open
Abstract
The process of crystallization in the urinary tract occurs when the equilibrium between promoting and inhibiting factors is broken. Many theories have been published to explain the mechanism of urinary stones formation; however, none of these theories has paid attention to trace elements. Their role in lithogenesis is still unclear and under debate. The findings of some studies may support the thesis that some major and trace elements may take part in the initiation of stone crystallization for instance as a nucleus or nidus for the formation of the stone, or simply contaminate the stone structure. This review presents a comprehensive account of the basic principles of the basic data and the role of major and trace elements in lithogenesis.
Collapse
Affiliation(s)
- Marcin Słojewski
- Department of Urology and Urological Oncology, Pomeranian Medical University, Szczecin, Poland
| |
Collapse
|
7
|
Au C, Benedetto A, Anderson J, Labrousse A, Erikson K, Ewbank JJ, Aschner M. SMF-1, SMF-2 and SMF-3 DMT1 orthologues regulate and are regulated differentially by manganese levels in C. elegans. PLoS One 2009; 4:e7792. [PMID: 19924247 PMCID: PMC2773845 DOI: 10.1371/journal.pone.0007792] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2009] [Accepted: 10/09/2009] [Indexed: 11/19/2022] Open
Abstract
Manganese (Mn) is an essential metal that can exert toxic effects at high concentrations, eventually leading to Parkinsonism. A major transporter of Mn in mammals is the divalent-metal transporter (DMT1). We characterize here DMT1-like proteins in the nematode C. elegans, which regulate and are regulated by Mn and iron (Fe) content. We identified three new DMT1-like genes in C. elegans: smf-1, smf-2 and smf-3. All three can functionally substitute for loss of their yeast orthologues in S. cerevisiae. In the worm, deletion of smf-1 or smf-3 led to an increased Mn tolerance, while loss of smf-2 led to increased Mn sensitivity. smf mRNA levels measured by QRT-PCR were up-regulated upon low Mn and down-regulated upon high Mn exposures. Translational GFP-fusions revealed that SMF-1 and SMF-3 strongly localize to partially overlapping apical regions of the gut epithelium, suggesting a differential role for SMF-1 and SMF-3 in Mn nutritional intake. Conversely, SMF-2 was detected in the marginal pharyngeal epithelium, possibly involved in metal-sensing. Analysis of metal content upon Mn exposure in smf mutants revealed that SMF-3 is required for normal Mn uptake, while smf-1 was dispensable. Higher smf-2 mRNA levels correlated with higher Fe content, supporting a role for SMF-2 in Fe uptake. In smf-1 and smf-3 but not in smf-2 mutants, increased Mn exposure led to decreased Fe levels, suggesting that both metals compete for transport by SMF-2. Finally, SMF-3 was post-translationally and reversibly down-regulated following Mn-exposure. In sum, we unraveled a complex interplay of transcriptional and post-translational regulations of 3 DMT1-like transporters in two adjacent tissues, which regulate metal-content in C. elegans.
Collapse
Affiliation(s)
- Catherine Au
- Department of Pediatrics, Vanderbilt University, Nashville, Tennessee, United States of America
- Center for Molecular Toxicology, Vanderbilt University, Nashville, Tennessee, United States of America
| | - Alexandre Benedetto
- Department of Pediatrics, Vanderbilt University, Nashville, Tennessee, United States of America
- Children's Hospital, Vanderbilt University, Nashville, Tennessee, United States of America
- London Centre for Nanotechnology, University College London, London, United Kingdom
| | - Joel Anderson
- Department of Nutrition, The University of North Carolina Greensboro, Greensboro, North Carolina, United States of America
| | - Arnaud Labrousse
- Centre d'Immunologie de Marseille-Luminy, Université de la Méditerranée, Marseille, France
- U631, INSERM, Marseille, France
- UMR6102, CNRS, Marseille, France
- Institut de Pharmacologie et de Biologie Structurale, Université Paul Sabatier Toulouse III, Toulouse, France
| | - Keith Erikson
- Department of Nutrition, The University of North Carolina Greensboro, Greensboro, North Carolina, United States of America
| | - Jonathan J. Ewbank
- Centre d'Immunologie de Marseille-Luminy, Université de la Méditerranée, Marseille, France
- U631, INSERM, Marseille, France
- UMR6102, CNRS, Marseille, France
| | - Michael Aschner
- Department of Pediatrics, Vanderbilt University, Nashville, Tennessee, United States of America
- Center for Molecular Toxicology, Vanderbilt University, Nashville, Tennessee, United States of America
- Children's Hospital, Vanderbilt University, Nashville, Tennessee, United States of America
- * E-mail:
| |
Collapse
|
8
|
Zheng W, Jiang YM, Zhang Y, Jiang W, Wang X, Cowan DM. Chelation therapy of manganese intoxication with para-aminosalicylic acid (PAS) in Sprague-Dawley rats. Neurotoxicology 2008; 30:240-8. [PMID: 19150464 DOI: 10.1016/j.neuro.2008.12.007] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2008] [Revised: 11/19/2008] [Accepted: 12/17/2008] [Indexed: 10/21/2022]
Abstract
Para-aminosalicylic acid (PAS), an FDA-approved anti-tuberculosis drug, has been used successfully in the treatment of severe manganese (Mn)-induced Parkinsonism in humans [Jiang Y-M, Mo X-A, Du FQ, Fu X, Zhu X-Y, Gao H-Y, et al. Effective treatment of manganese-induced occupational Parkinsonism with p-aminosalicylic acid: a case of 17-year follow-up study. J Occup Environ Med 2006;48:644-9]. This study was conducted to explore the capability of PAS in reducing Mn concentrations in body fluids and tissues of Mn-exposed animals. Sprague-Dawley rats received daily intraperitoneally (i.p.) injections of 6mg Mn/kg, 5 days/week for 4 weeks, followed by a daily subcutaneously (s.c.) dose of PAS (100 and 200mg/kg as the PAS-L and PAS-H group, respectively) for another 2, 3 or 6 weeks. Mn exposure significantly increased the concentrations of Mn in plasma, red blood cells (RBC), cerebrospinal fluid (CSF), brain and soft tissues. Following PAS-H treatment for 3 weeks, Mn levels in liver, heart, spleen and pancreas were significantly reduced by 25-33%, while 3 weeks of PAS-L treatment did not show any effect. Further therapy with PAS-H for 6 weeks reduced Mn levels in striatum, thalamus, choroid plexus, hippocampus and frontal cortex by 16-29% (p<0.05). Mn exposure greatly increased iron (Fe) and copper (Cu) concentrations in CSF, brain and liver. Treatment with PAS-H restored Fe and Cu levels comparable with control. These data suggest that PAS likely acts as a chelating agent to mobilize and remove tissue Mn. A high-dose and prolonged PAS treatment appears necessary for its therapeutic effectiveness.
Collapse
Affiliation(s)
- Wei Zheng
- School of Health Sciences, Purdue University, West Lafayette, IN 47907, USA.
| | | | | | | | | | | |
Collapse
|
9
|
Tsui KH, Chang PL, Juang HH. Manganese antagonizes iron blocking mitochondrial aconitase expression in human prostate carcinoma cells. Asian J Androl 2006; 8:307-15. [PMID: 16625280 DOI: 10.1111/j.1745-7262.2006.00139.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
AIM To investigate the possible role of manganese in the regulation of mitochondrial aconitase (mACON) activity human prostate carcinoma cell line PC-3 cells. METHODS The mACON enzymatic activities of human prostate carcinoma cell line PC-3 cells were determined using a reduced nicotinamide adenine dinucleotide-coupled assay. Immunoblot and transient gene expression assays were used to study gene expression of the mACON. The putative response element for gene expression was identified using reporter assays with site-directed mutagenesis and electrophoretic mobility-shift assays. RESULTS In vitro study revealed that manganese chloride (MnCl2) treatment for 16 h inhibited the enzymatic activity of mACON, which induced the inhibition of citrate utility and cell proliferation of PC-3 cells. Although results from transient gene expression assays showed that MnCl2 treatment upregulated gene translation by approximately 5-fold through the iron response element pathway, immunoblot and reporter assays showed that MnCl2 treatments inhibited protein and gene expression of mACON. This effect was reversed by co-treatment with ferric ammonium citrate. Additional reporter assays with site-directed mutagenesis and electrophoretic mobility-shift assays suggested that a putative metal response element in the promoter of the mACON gene was involved in the regulation of MnCl2 on the gene expression of mACON. CONCLUSION These findings suggest that manganese acts as an antagonist of iron, disrupting the enzymatic activity and gene expression of mACON and citrate metabolism in the prostate.
Collapse
Affiliation(s)
- Ke-Hung Tsui
- Department of Anatomy, Chang Gung University, 259 Wen-Hua 1st Road, Kwei-Shan, Tao-Yuan 333, Taiwan, China
| | | | | |
Collapse
|