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Tercanli H, Yavuz E, Yilmaz SG, Yardimci S. Mercury Concentration in Saliva and the Impact of Chewing: An Inductively Coupled Plasma Mass Spectrometry Study. Biol Trace Elem Res 2024; 202:1965-1971. [PMID: 37632686 DOI: 10.1007/s12011-023-03825-7] [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: 06/02/2023] [Accepted: 08/20/2023] [Indexed: 08/28/2023]
Abstract
Mercury, which is found in dental amalgams, is considered to be the most toxic non-radioactive element. However, the health policies of different countries have not reached a consensus on the use and safety of amalgam. This study aims to investigate the effect of amalgam restorations on mercury concentration in saliva, as well as the effect of restoration number, surface number, and chewing on this concentration. A total of 86 participants were included in this study (an equal number for the study and control groups). The number of amalgam restorations and their surfaces were recorded. While both unstimulated and stimulated saliva were collected from the study group, only unstimulated saliva was collected from the control group. The effect of chewing on mercury concentration was examined in the study group with unstimulated and stimulated saliva specimens using inductively coupled plasma mass spectrometry device. Mercury concentration in the unstimulated saliva was found to be higher in the study group compared to the control group (p= 0.000). As the number of amalgam restorations and the number of amalgam restoration surfaces increased, the mercury concentration in the saliva increased (p= 0.015 and p= 0.021, respectively). There was no statistically significant difference between mercury levels in the unstimulated saliva and the stimulated saliva (p=0.316). Chewing presented an insignificant difference in mercury concentration. Given this surprising result, the effect of chewing on mercury concentrations should be explored more extensively in future research.
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Affiliation(s)
- Humeyra Tercanli
- Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Akdeniz University, Dumlupınar Avenue, 07058, Antalya, Turkey
| | - Esra Yavuz
- Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Akdeniz University, Dumlupınar Avenue, 07058, Antalya, Turkey.
| | - Sevcihan Gunen Yilmaz
- Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Akdeniz University, Dumlupınar Avenue, 07058, Antalya, Turkey
| | - Selmi Yardimci
- Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Akdeniz University, Dumlupınar Avenue, 07058, Antalya, Turkey
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Wu X, Zhong Z, Lin K, Liu X, Wu Z, Liu Z, Li Y. Comparative pharmacokinetics and urinary excretion of arsenic and mercury after oral administration of realgar, cinnabar and AnGongNiuHuang Pill to rats. Front Pharmacol 2022; 13:967608. [PMID: 36110533 PMCID: PMC9470115 DOI: 10.3389/fphar.2022.967608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 07/25/2022] [Indexed: 11/29/2022] Open
Abstract
Realgar- and cinnabar-containing AnGongNiuHuang Pill (AGNHP) is widely used for treating encephalopathy syndrome. However, it raises great safety concerns due to the adverse effects reported by arsenic or mercury poisoning. Although AGNHP has been generally recognized, little is known about the metabolism of arsenic and mercury and their resulting potential health risk in vivo. Thus, comparative pharmacokinetics and urinary excretion of arsenic and mercury were conducted in rats after oral administration of realgar, cinnabar and AGNHP, respectively. The contents of arsenic and mercury in rat blood and urine were determined by hydride-generation atomic fluorescence spectrometry (HG-AFS) after wet digestion. AGNHP significantly reduced the absorption of arsenic in blood and promoted urinary arsenic excretion. Whereas, it increased the blood mercury absorption and reduced urinary mercury excretion. No significant toxicity was observed in the clinical dose range of AGNHP. However, excessive exposure to arsenic and mercury may still pose risks especially by long-term or excessive medication. The results are helpful for the rational clinical applications of realgar- and cinnabar-containing TCMs.
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Affiliation(s)
- Xiao Wu
- *Correspondence: Xiao Wu, ; Yongming Li,
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Aksoy OY, Bastug F, Pac Kisaarslan A, Celik B. An unusual cause of hypertension: Answers. Pediatr Nephrol 2021; 36:2115-2116. [PMID: 33646390 DOI: 10.1007/s00467-021-04978-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 01/21/2021] [Indexed: 11/29/2022]
Affiliation(s)
- Ozlem Yuksel Aksoy
- Department of Pediatric Nephrology, Kayseri City Hospital, Kayseri, Turkey.
| | - Funda Bastug
- Department of Pediatric Nephrology, Kayseri City Hospital, Kayseri, Turkey
| | | | - Binnaz Celik
- Department of Pediatrics, Kayseri City Hospital, Kayseri, Turkey
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Abstract
Mercury (Hg) exists in the environment as inorganic (metallic Hg vapor, mercurous and mercuric salts) or organic (bonded to a structure containing carbon atoms) forms. Neurotoxic effect of Hg is known for years. While the organic form (methylmercury (meHg)) led to the Minamata incidence in Japan and "wonder-wheat" disaster in Iraq, the "mad hatters" and "Danbury shakes" were related to the inorganic elemental form (Hg vapor). Human exposure to toxic Hg continues in the modern world to a large extent by artisanal gold mining, biomass combustion, chloralkali production, and indigenous medicine use to name a few. Heavy industrial use of Hg contaminates air and landfills, affecting the aquatic ecosystem and marine food chain. A detailed social and occupational history with a high index of clinical suspicion is required to not miss this toxic etiology for movement disorders like ataxia, tremor, or myoclonus. In this review, we have discussed the past and present global health impact of Hg from a movement disorder perspective. The connection of Hg with neurodegeneration and autoimmunity has been highlighted. We have also discussed the role of chelating agents and the preventive strategies to combat the neurotoxic effects of Hg in the modern world.
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Erythrocytes as a Model for Heavy Metal-Related Vascular Dysfunction: The Protective Effect of Dietary Components. Int J Mol Sci 2021; 22:ijms22126604. [PMID: 34203038 PMCID: PMC8235350 DOI: 10.3390/ijms22126604] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 06/16/2021] [Accepted: 06/18/2021] [Indexed: 12/17/2022] Open
Abstract
Heavy metals are toxic environmental pollutants associated with severe ecological and human health risks. Among them is mercury (Hg), widespread in air, soil, and water, due to its peculiar geo-biochemical cycle. The clinical consequences of Hg exposure include neurotoxicity and nephrotoxicity. Furthermore, increased risk for cardiovascular diseases is also reported due to a direct effect on cardiovascular tissues, including endothelial cells, recently identified as important targets for the harmful action of heavy metals. In this review, we will discuss the rationale for the potential use of erythrocytes as a surrogate model to study Hg-related toxicity on the cardiovascular system. The toxic effects of Hg on erythrocytes have been amply investigated in the last few years. Among the observed alterations, phosphatidylserine exposure has been proposed as an underlying mechanism responsible for Hg-induced increased proatherogenic and prothrombotic activity of these cells. Furthermore, following Hg-exposure, a decrease in NOS activity has also been reported, with consequent lowering of NO bioavailability, thus impairing endothelial function. An additional mechanism that may induce a decrease in NO availability is the generation of an oxidative microenvironment. Finally, considering that chronic Hg exposure mainly occurs through contaminated foods, the protective effect of dietary components is also discussed.
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Johnson‐Arbor K, Tefera E, Farrell J. Characteristics and treatment of elemental mercury intoxication: A case series. Health Sci Rep 2021; 4:e293. [PMID: 34136656 PMCID: PMC8177896 DOI: 10.1002/hsr2.293] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 04/20/2021] [Accepted: 04/23/2021] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND AND AIMS Elemental mercury toxicity is a rare condition which can be difficult to diagnose due to its nonspecific signs and symptoms. The purpose of this investigation is to describe the presenting characteristics and treatment of adult and pediatric patients with elemental mercury poisoning. METHODS A retrospective review was performed in six patients with elemental mercury exposure or intoxication who were treated in an outpatient medical toxicology clinic. Clinical signs and symptoms, laboratory assessments, and public health responses were reviewed. RESULTS Headache, anorexia, rash, and personality changes were commonly reported symptoms in pediatric patients; the adult patients were asymptomatic or reported signs and symptoms included myalgias, tremors, and hypertension. Delays in diagnosis were common. Symptomatic patients had 24-hour urine mercury concentrations greater than 20 mcg/L. Treatment, including removal from the exposure source as well as chelation with dimercaptosuccinic acid, resulted in resolution of signs and symptoms within 6 months of diagnosis. CONCLUSION The evaluation and treatment of patients with suspected elemental mercury poisoning frequently require a multidisciplinary approach including medical toxicologists and public health officials. A heightened awareness of the clinical presentations of this condition, as well as early identification and removal of patients from the source of exposure and consideration of chelation therapy, can result in accelerated patient recovery.
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Affiliation(s)
- Kelly Johnson‐Arbor
- Department of Plastic and Reconstructive SurgeryMedStar Georgetown University HospitalWashingtonDistrict of Columbia
- National Capital Poison CenterWashingtonDistrict of Columbia
| | - Eshetu Tefera
- Department of Plastic and Reconstructive SurgeryMedStar Georgetown University HospitalWashingtonDistrict of Columbia
- Department of Biostatistics and Biomedical InformaticsMedStar Health Research InstituteHyattsvilleMaryland
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Magdalan J, Sozański T, Nowak K, Zawadzki M. Acute intranasal intoxication with mercuric chloride taken accidently instead of cocaine - A case report. J Forensic Leg Med 2021; 78:102129. [PMID: 33581407 DOI: 10.1016/j.jflm.2021.102129] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Revised: 01/22/2021] [Accepted: 01/31/2021] [Indexed: 11/26/2022]
Abstract
CONTEXT Mercuric chloride (mercury (II) chloride) belongs to inorganic mercury compounds characterized by good water solubility and associated high toxicity. The paper describes an unusual case of intranasal intoxication with corrosive sublimate confused with cocaine by a young male. CASE REPORT Intranasal administration of corrosive sublimate caused severe local symptoms of chemical burn within the nasal cavity. From the 2nd day the patient developed symptoms of renal dysfunction with transient polyuria and serum retention of nitrogen metabolites. The patient was undergoing chelation therapy with DMPS, N-acetylcysteine and d-penicyllamine. Four procedures of haemodialysis were performed with simultaneous DMPS and N-acetylcysteine treatment. The urine mercury level on the first day of hospitalization was 1989 μg/L, and after 26 days of treatment returned to the physiological level. During treatment renal function was normalized, the patient was discharged in general good condition. DISCUSSION Mercuric chloride is readily absorbed from the nasal cavity. Its administration may cause intoxication manifested by both chemical burn at the exposure site and systemic symptoms, particularly renal impairment. Even in case of renal dysfunction the use of DMPS seems safe, if haemodialysis is performed at the same time. Simultaneous haemodialysis and chelation therapy may accelerate elimination of mercury from the organism.
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Affiliation(s)
- Jan Magdalan
- Department of Toxicology and Internal Medicine, Lower Silesia Specialist Hospital T. Marciniak in Wrocław, Fieldorfa 2, Wrocław, PL 54-049, Poland; Department of Pharmacology, Wroclaw Medical University, Jana Mikulicza-Radeckiego 2, Wrocław, PL 50-345, Poland
| | - Tomasz Sozański
- Department of Pharmacology, Wroclaw Medical University, Jana Mikulicza-Radeckiego 2, Wrocław, PL 50-345, Poland
| | - Karolina Nowak
- Institute of Toxicology Research, Kasztanowa 45, Borowa, PL 55-093, Poland
| | - Marcin Zawadzki
- Department of Forensic Medicine, Wroclaw Medical University, Mikulicza-Radeckiego 4, Wroclaw, PL 50-345, Poland.
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Baimenov AZ, Berillo DA, Moustakas K, Inglezakis VJ. Efficient removal of mercury (II) from water by use of cryogels and comparison to commercial adsorbents under environmentally relevant conditions. JOURNAL OF HAZARDOUS MATERIALS 2020; 399:123056. [PMID: 32526429 DOI: 10.1016/j.jhazmat.2020.123056] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 05/07/2020] [Accepted: 05/25/2020] [Indexed: 06/11/2023]
Abstract
Mercury is a toxic element, which can be found in air, water and soil in several inorganic and organic forms. Mercury pollution comes from a variety of industrial sources, including vinyl-chloride, pulp and paper, fertilizers and pharmaceuticals industry, gold mining and cement production. Gels have increasingly attracted the interest over the past decades and one of the investigated applications is the fast removal of organic substances, metals and other cations and anions from water. In this work, two types of cryogels were synthesized at sub-zero temperature by free-radical polymerization technique, characterized by using a set of complimentary methods and used for the removal of mercury from aqueous solutions of different chemistry. Kinetics and equilibrium studies were performed in ultra-pure water solutions in order to study the mechanisms in the presence nitrate and chloride ions. The cryogels exhibited excellent efficiency towards mercury removal from all model solutions. Moreover, the cryogels were tested in different water matrixes (tap, river and sea water) and compared to commercial adsorbents (activated carbon, strong acid resin and zeolite Y). Cryogels were able to remove mercury much faster than commercial adsorbents with the exception of seawater where activated carbon was superior.
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Affiliation(s)
- A Zh Baimenov
- Environmental Science and Technology Group (ESTg), Chemical & Materials Engineering Department, School of Engineering, Nazarbayev University, Nur-Sultan, Kazakhstan; The Environment & Resource Efficiency Cluster (EREC), Nazarbayev University, Nur-Sultan, Kazakhstan
| | - D A Berillo
- Department of Biotechnology, Al-Farabi Kazakh National University, Almaty, Kazakhstan
| | - K Moustakas
- School of Chemical Engineering, National Technical University of Athens, Athens, Greece
| | - V J Inglezakis
- Environmental Science and Technology Group (ESTg), Chemical & Materials Engineering Department, School of Engineering, Nazarbayev University, Nur-Sultan, Kazakhstan; The Environment & Resource Efficiency Cluster (EREC), Nazarbayev University, Nur-Sultan, Kazakhstan.
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Kumar A, Kumar A, Sahoo PR, Kumar S. A light controlled, reversible, sensitive and highly selective colorimetric sensor for mercuric ions in water. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.127702] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Bjørklund G, Chirumbolo S, Dadar M, Pivina L, Lindh U, Butnariu M, Aaseth J. Mercury exposure and its effects on fertility and pregnancy outcome. Basic Clin Pharmacol Toxicol 2019; 125:317-327. [PMID: 31136080 DOI: 10.1111/bcpt.13264] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 05/22/2019] [Indexed: 12/11/2022]
Abstract
Mercury (Hg), a highly toxic environmental pollutant, shows harmfulness which still represents a big concern for human health, including hazards to fertility and pregnancy outcome. Research has shown that Hg could induce impairments in the reproductive function, cellular deformation of the Leydig cells and the seminiferous tubules, and testicular degeneration as well as abnormal menstrual cycles. Some studies investigated spontaneous abortion and complicated fertility outcome due to occupational Hg exposure. Moreover, there is a relation between inhaled Hg vapour and reproductive outcome. This MiniReview evaluates the hypothesis that exposure to Hg may increase the risk of reduced fertility, spontaneous abortion and congenital deficits or abnormalities.
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Affiliation(s)
- Geir Bjørklund
- Council for Nutritional and Environmental Medicine (CONEM), Mo i Rana, Norway
| | - Salvatore Chirumbolo
- Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy.,CONEM Scientific Secretary, Verona, Italy
| | - Maryam Dadar
- Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran
| | - Lyudmila Pivina
- Semey Medical University, Semey, Kazakhstan.,CONEM Kazakhstan Environmental Health and Safety Research Group, Semey Medical University, Semey, Kazakhstan
| | - Ulf Lindh
- Biology Education Centre, Uppsala University, Uppsala, Sweden
| | - Monica Butnariu
- Banat's University of Agricultural Sciences and Veterinary Medicine "King Michael I of Romania" from Timisoara, Timisoara, Romania.,CONEM Romania Biotechnology and Environmental Sciences Group, Banat's University of Agricultural Sciences and Veterinary Medicine "King Michael I of Romania" from Timisoara, Timisoara, Romania
| | - Jan Aaseth
- Research Department, Innlandet Hospital Trust, Brumunddal, Norway.,Inland Norway University of Applied Sciences, Elverum, Norway
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