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Mercury poisoning

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https://www.readbyqxmd.com/read/29704998/selenoprotein-p-as-the-major-transporter-for-mercury-in-serum-from-methylmercury-poisoned-rats
#1
Yang Liu, Wei Zhang, Jiating Zhao, Xiaoying Lin, Jiamei Liu, Liwei Cui, Yuxi Gao, Tian-Lan Zhang, Bai Li, Yu-Feng Li
Selenium (Se) has been found to promote weight gain, decrease hepatic damage, but redistribute mercury (Hg) in brains and livers in methylmercury (MeHg)-poisoned rats. The aims of the present work were to examine the effects of Se on the levels of Hg in serum and the role of serum selenoproteins in binding with Hg in MeHg-poisoned rats. The concentration of Se, Hg and MeHg were studied using ICP-MS and CVAFS. The Hg- and Se-binding selenoproteins were separated and quantified using affinity chromatography with post-column isotope dilution analysis using both enriched 78 Se and 199 Hg...
April 18, 2018: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/29698523/urine-mercury-levels-correlate-with-dna-methylation-of-imprinting-gene-h19-in-the-sperm-of-reproductive-aged-men
#2
Zhaoxu Lu, Yufeng Ma, Linying Gao, Yingjun Li, Qiang Li, Mei Qiang
BACKGROUND: Mercury (Hg) is a well-recognized environmental pollutant known by its toxicity of development and neurotoxicity, which results in adverse health outcomes. However, the mechanisms underlying the teratogenic effects of Hg are not well understood. Imprinting genes are emerging regulators for fetal development subjecting to environmental pollutants impacts. In this study, we examined the association between preconceptional Hg exposure and the alteration of DNA methylation of imprinting genes H19, Meg3, and Peg3 in human sperm DNA...
2018: PloS One
https://www.readbyqxmd.com/read/29614795/full-atrioventricular-block-secondary-to-acute-poisoning-mercury-a-case-report
#3
Amelia Geraldine Peregrina-Chávez, María Del Rayo Ramírez-Galindo, Rolando Chávez-Martínez, Cesar Anuar Delahanty-Delgado, Fernando Vazquez-Alaniz
Background: The biological behaviour and clinical significance of mercury toxicity vary according to its chemical structure. Mercury differs in its degree of toxicity and in its effects on the nervous, digestive and immune systems as well as on organs such as the lungs, kidneys, skin, eyes and heart. Human exposure occurs mainly through inhalation of elemental mercury vapours during industrial and artisanal processes such as artisanal and small-scale gold mining. Case presentation: A 52-years-old female, housewife, with a body mass index of 25...
April 2, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29600487/lead-poisoning-and-other-human-related-factors-cause-significant-mortality-in-white-tailed-eagles
#4
Marja Isomursu, Juhani Koivusaari, Torsten Stjernberg, Varpu Hirvelä-Koski, Eija-Riitta Venäläinen
The white-tailed eagle (Haliaeetus albicilla) suffered a severe population decline due to environmental pollutants in the Baltic Sea area ca. 50 years ago but has since been recovering. The main threats for the white-tailed eagle in Finland are now often related to human activities. We examined the human impact on the white-tailed eagle by determining mortality factors of 123 carcasses collected during 2000-2014. Routine necropsy with chemical analyses for lead and mercury were done on all carcasses. We found human-related factors accounting for 60% of the causes of death...
March 29, 2018: Ambio
https://www.readbyqxmd.com/read/29528276/toxic-metals-in-ayurvedic-preparations-from-a-public-health-lead-poisoning-cluster-investigation
#5
Marek A Mikulski, Michael D Wichman, Donald L Simmons, Anthony N Pham, Valentina Clottey, Laurence J Fuortes
Background Herbal formulations, traditional medicine, and complementary and alternative medicine are used by the majority of the world's population. Toxicity associated with use of Ayurvedic products due to metal content is an increasingly recognized potential public health problem. Objectives Report on toxic metals content of Ayurvedic products obtained during an investigation of lead poisoning among users of Ayurvedic medicine. Methods Samples of Ayurvedic formulations were analyzed for metals and metalloids following established US...
July 2017: International Journal of Occupational and Environmental Health
https://www.readbyqxmd.com/read/29512044/mercury-associated-diagnoses-among-children-diagnosed-with-pervasive-development-disorders
#6
David A Geier, Janet K Kern, Lisa K Sykes, Mark R Geier
Nelson and Bauman (Pediatrics 111:674-679, 2003) previously hypothesized that pervasive developmental disorder (PDD) was not associated with mercury (Hg) exposure because the medical conditions associated with Hg exposure were not associated with PDD. A hypothesis-testing longitudinal case-control study evaluated the frequency of medically diagnosed conditions previously associated with Hg poisoning, including: epilepsy, dysarthria, failure to thrive, cerebral palsy, or contact dermatitis and other eczema among children preceding their eventual PDD diagnosis (cases) compared to controls...
June 2018: Metabolic Brain Disease
https://www.readbyqxmd.com/read/29445807/base-free-n-alkylation-of-anilines-with-arch-2-oh-and-transfer-hydrogenation-of-aldehydes-ketones-catalyzed-by-the-complexes-of-%C3%AE-5-cp-ir-iii-with-chalcogenated-schiff-bases-of-anthracene-9-carbaldehyde
#7
Pooja Dubey, Sonu Gupta, Ajai K Singh
The condensation of anthracene-9-carbaldehyde with 2-(phenylthio/seleno)ethylamine results in Schiff bases [PhS(CH2 )2 C[double bond, length as m-dash]N-9-C14 H9 ](L1) and [PhSe(CH2 )2 C[double bond, length as m-dash]N-9-C14 H9 ] (L2). On their reaction with [(η5 -Cp*)IrCl(μ-Cl)]2 and CH3 COONa at 50 °C followed by treatment with NH4 PF6 , iridacycles, [(η5 -Cp*)Ir(L-H)][PF6 ] (1: L = L1; 2: L = L2), result. The same reaction in the absence of CH3 COONa gives complexes [(η5 -Cp*)Ir(L)Cl][PF6 ] (3-4) in which L = L1(3)/L2(4) ligates in a bidentate mode...
March 12, 2018: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/29395180/mercury-poisoning-in-a-toddler-from-home-contamination-due-to-skin-lightening-cream
#8
Michael R Ori, Jaiva B Larsen, Farshad Mazda Shirazi
A 17-month-old child presented with hypertension, fussiness, constipation, and arthralgia due to mercury toxicity from a skin-lightening cosmetic used by her mother and grandmother. Blood mercury level was 26 mcg/L and urine level was 243 mcg/g creatinine. She was chelated with succimer. The home was contaminated and needed remediation.
January 30, 2018: Journal of Pediatrics
https://www.readbyqxmd.com/read/29294553/-two-cases-of-convulsive-type-of-oxygen-poisoning-caused-by-mercury-vapor-inhalation
#9
P Jia, Z Wang, H N Zheng
No abstract text is available yet for this article.
October 20, 2017: Chinese Journal of Industrial Hygiene and Occupational Diseases
https://www.readbyqxmd.com/read/29294542/-value-of-plasma-micrornas-has-let-7d-and-has-let-7e-as-potential-molecular-markers-in-workers-with-occupational-exposure-to-mercury
#10
J Guo, H Q Zhang, E M Ding, Y Bai, B L Zhu
Objective: To investigate whether plasma microRNAs has-let-7d and has-let-7e can be used as potential molecular markers for workers with occupational exposure to mercury. Methods: October 2013, the workers with occupational exposure to mercury who worked in a mercury thermometer factory and participated in occupational health examination were selected as subjects, and biological samples and basic data were collected. The subjects were divided into chronic mercury poisoning group,mercury absorption group,and control group,with 30 individuals in each group...
October 20, 2017: Chinese Journal of Industrial Hygiene and Occupational Diseases
https://www.readbyqxmd.com/read/29291194/the-evaluation-of-total-mercury-and-arsenic-in-skin-bleaching-creams-commonly-used-in-trinidad-and-tobago-and-their-potential-risk-to-the-people-of-the-caribbean
#11
Terry Mohammed, Elisabeth Mohammed, Shermel Bascombe
Background. Skin lightening is very popular among women and some men of the Caribbean, and its popularity appears to be growing. The lightening of skin colour is done to produce a lighter complexion which is believed to increase attractiveness, social standing and improves one's potential of being successful. Design and Methods. Fifteen (15) common skin lightening creams found in pharmacies and cosmetic retailers throughout Trinidad and Tobago were evaluated for Mercury by Cold Vapor Atomic Absorption Spectrophotometry (CVAAS) and Arsenic by Hydride Generation Atomic Absorption Spectrophotometry (HGAAS)...
December 13, 2017: Journal of Public Health Research
https://www.readbyqxmd.com/read/29240681/mercury-hair-concentration-among-primary-school-children-in-malaysia
#12
Nurul Izzah Abdul Samad, Zaleha Md Isa, Rozita Hod
The main concern regarding mercury exposure is the adverse health effect on the developing nervous system. The objective of this cross-sectional study was to determine hair mercury levels and their association with socio-demographic characteristics, complaints about mercury poisoning symptoms and the fish consumption pattern among children in Malaysia. A cross-sectional study was conducted among 215 school children aged 11 years old. Hair was collected from the children and the total mercury was analyzed using oxygen combustion-gold amalgamation atomic absorption spectrophotometry...
December 14, 2017: Children
https://www.readbyqxmd.com/read/29177398/-taki-onqoy-mercury-poisoning-epidemic-in-16th-century-huamanga
#13
Luis Alberto Santa María
Taki Onqoy is a syndrome that corresponds to the poisoning from exposure to mercury. It appeared as a result of the exploitation of the mercury mines of Paras and Huancavelica in Peru during the 16th century. The Cachexia mercurial, the last stage of the disease, would be associated with the idea of pishtaco. The Taki Onqoy in 16th-century Peru represents the largest epidemic of mercury poisoning known to humanity.
April 2017: Revista Peruana de Medicina Experimental y Salud Pública
https://www.readbyqxmd.com/read/29168293/changes-in-intraepidermal-nerve-fiber-and-langerhans-cell-densities-in-the-plantar-skin-of-rats-after-mercuric-chloride-exposure
#14
Binbin Sun, Shuangyi Fan, Kai Yao, Yifan Li, Xusheng Huang
Mercury and its compounds possess strong neurotoxicity and patients with mercury poisoning often report pain and numbness in the distal extremities that conform to the "stocking-glove" pattern. However, no study has investigated whether damage to small nerve fibers is associated with mercury poisoning. The aims of the present study were to evaluate the effects of different doses of mercury chloride (HgCl2 ) on intraepidermal nerve fibers density (IENFD) and Langerhans cells (LCs) in the plantar skin of rats and to assess the possible relationship between changes in IENFD and sensory testing...
March 2018: Journal of the Peripheral Nervous System: JPNS
https://www.readbyqxmd.com/read/29167424/mir-92a-and-mir-486-are-potential-diagnostic-biomarkers-for-mercury-poisoning-and-jointly-sustain-nf-%C3%AE%C2%BAb-activity-in-mercury-toxicity
#15
Enmin Ding, Jun Guo, Ying Bai, Hengdong Zhang, Xin Liu, Wenyan Cai, Lixin Zhong, Baoli Zhu
Occupational and environmental exposure to mercury is a public health concern worldwide. Although the altered epigenetic regulatory features, such as microRNA, have been associated with mercury exposure, the underlying molecular mechanism is not well illuminated. This study aimed to confirm that hsa-miR-92a and hsa-miR-486 are novel diagnostic biomarkers of occupational mercury poisoning, and to explore the underlying mechanism of miR-92a and miR-486 in mercury toxicity. RT-qPCR assays and receiver operating characteristics curve analyses were conducted to confirm the diagnostic value of miR-92a and miR-486 as biomarkers of occupational mercury poisoning...
November 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29165683/systematic-review-occupational-illness-in-the-waste-and-recycling-sector
#16
C J M Poole, S Basu
Background: The waste and recycling sector is a growing part of industry. Whether health surveillance is indicated and how it should be undertaken is unclear. Aims: To undertake a review of the literature to identify hazards to health, biological effects and occupational illnesses for workers in the sector. Methods: A systematic review of the published literature and two UK databases. Results: Rates of fatal, non-fatal injuries and self-reported work-related illness were found to be higher in the waste and recycling sector than in UK industry as a whole...
December 2, 2017: Occupational Medicine
https://www.readbyqxmd.com/read/29164278/metals-and-organohalogen-contaminants-in-bald-eagles-haliaeetus-leucocephalus-from-ontario-1991-2008
#17
P A Martin, K D Hughes, G D Campbell, J L Shutt
We examined the degree of exposure of lead (Pb), mercury (Hg), and several organohalogen contaminants and its potential impact on survival of bald eagles in Ontario from 1991 to 2008. Overall, results for 43 dead or dying bald eagles collected in the province indicate that 23% (10/43) of birds died of Pb poisoning and 9% (4/43) died of suspected Hg poisoning. Pb poisoning was diagnosed based on exceedances of toxicity thresholds in liver and kidney and supported by clinical observations, necropsy results, and histology findings when available...
February 2018: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/29145289/mercury-poisoning-through-intravenous-administration-two-case-reports-with-literature-review
#18
REVIEW
Qiuying Lu, Zilong Liu, Xiaorui Chen
RATIONALE: Metallic mercury poisoning through intravenous injection is rare, especially for a homicide attempt. Diagnosis and treatment of the disease are challenging. PATIENT CONCERNS: A 34-year-old male presented with pyrexia, chill, fatigue, body aches, and pain of the dorsal aspect of right foot. Another case is that of a 29-year-old male who committed suicide by injecting himself metallic mercury 15 g intravenously and presented with dizzy, dyspnea, fatigue, sweatiness, and waist soreness...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29124976/rethinking-mercury-the-role-of-selenium-in-the-pathophysiology-of-mercury-toxicity
#19
Henry A Spiller
INTRODUCTION: There is increasing evidence that the pathophysiological target of mercury is in fact selenium, rather than the covalent binding of mercury to sulfur in the body's ubiquitous sulfhydryl groups. The role of selenium in mercury poisoning is multifaceted, bidirectional, and central to understanding the target organ toxicity of mercury. METHODS: An initial search was performed using Medline/PubMed, Toxline, Google Scholar, and Google for published work on mercury and selenium...
November 10, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/29093364/mercury-poisoning-in-a-fisherman-working-on-a-pelagic-fishing-vessel-due-to-excessive-tuna-consumption
#20
Ji-Sung Ahn, Kyung Wook Kang, Won-Yang Kang, Hyeong-Min Lim, Seunghyeon Cho, Jai-Dong Moon, Won-Ju Park
OBJECTIVE: To report the case of a fisherman who developed chronic mercury poisoning due to excessive consumption of tuna while working on a pelagic fishing vessel. CASE REPORT: A 48-year-old male deep-sea fisherman developed paresthesia and pain in both legs while working at sea. He continued working for over 4 months on a pelagic fishing vessel but was eventually unable to function normally as his condition deteriorated. Upon arrival on land, he received specialist treatment, including imaging studies, for 2 months; however, the cause of the symptoms was not identified...
January 25, 2018: Journal of Occupational Health
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