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Mercury poisoning

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https://www.readbyqxmd.com/read/29294553/-two-cases-of-convulsive-type-of-oxygen-poisoning-caused-by-mercury-vapor-inhalation
#1
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
#2
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
#3
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
#4
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
#5
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
#6
Binbin Sun, Shuangyi Fan, Kai Yao, Yifan Li, Xusheng Huang
BACKGROUND: 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...
November 23, 2017: 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
#7
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
#8
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
#9
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...
November 21, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/29145289/mercury-poisoning-through-intravenous-administration-two-case-reports-with-literature-review
#10
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
#11
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
#12
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...
November 1, 2017: Journal of Occupational Health
https://www.readbyqxmd.com/read/29081130/-change-in-peripheral-nervous-conduction-velocity-in-patients-with-occupational-chronic-mercury-poisoning-and-related-influencing-factors
#13
L Li, B Jiang, J Lai, W R Dai, X Li, W F Liu, Z X Yang, L Xie
Objective: To investigate the change in peripheral nervous conduction velocity in patients with occupational chronic mercury poisoning and related influencing factors. Methods: From February 2011 to December 2014, urinary mercury examination and neural electromyography were performed for 104 patients with occupational chronic mercury poisoning. The data on age, type of work, working years of mercury exposure, and past medical history were collected, and peripheral nervous conduction velocity and its correlation with age, working years of mercury exposure, and urinary mercury concentration were analyzed...
August 20, 2017: Chinese Journal of Industrial Hygiene and Occupational Diseases
https://www.readbyqxmd.com/read/29063135/metal-chelators-and-neurotoxicity-lead-mercury-and-arsenic
#14
REVIEW
Geir Bjørklund, Joachim Mutter, Jan Aaseth
This article reviews the clinical use of the metal chelators sodium 2,3-dimercapto-1-propanesulfonate (DMPS), meso-2,3-dimercaptosuccinic acid (DMSA), and calcium disodium edetate (CaEDTA, calcium EDTA) in overexposure and poisonings with salts of lead (Pb), mercury (Hg), and arsenic (As). DMSA has considerably lower toxicity than the classic heavy metal antagonist BAL (2,3-dimercaptopropanol) and is also less toxic than DMPS. Because of its adverse effects, CaEDTA should be replaced by DMSA as the antidote of choice in treating moderate Pb poisoning...
October 24, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/29062186/lead-poisoning-due-to-herbal-medications
#15
Prashant Sakharkar
Many herbal products are harmless or possess minimal toxicity, whereas, some contain toxic ingredients that may not be identified due to lack of quality control or not listed on the label. Over the years, several case reports and studies have documented that herbal medications may contain ingredients that are toxic. Several studies have documented that some herbal medications contained high concentrations of heavy metals, such as lead, mercury, and arsenic. Publications of such case reports and studies have repeatedly reminded us that we have failed in our legal and civic duties of educating users of herbal medications and general population about the grave concerns posed by the herbal medications and their associated toxicities...
October 2017: Indian Journal of Clinical Biochemistry: IJCB
https://www.readbyqxmd.com/read/29033890/an-enigmatic-case-of-acute-mercury-poisoning-clinical-immunological-findings-and-platelet-function
#16
Ilka Kleffner, Susann Eichler, Tobias Ruck, Lisa Schüngel, Steffen Pfeuffer, Philipp Polzer, Ralf Dittrich, Rainer Dziewas, Catharina C Gross, Kerstin Göbel, Heinz Wiendl, Beate E Kehrel, Sven G Meuth
Severe mercury intoxication is very rare in developed countries, but still occurs as the result of volatile substance abuse, suicide attempts, occupational hazards, or endemic food ingestion as reported in the cases of public health disasters in Iraq and in Minamata Bay, Japan. Here, we describe the dramatic physical and cognitive decline of a 23-year-old patient caused by a severe methyl mercury (MeHg) intoxication of unknown origin. We show serial magnetic resonance imaging (MRI) of the patient's brain, as well as ex vivo analyses of blood and cerebrospinal fluid including multicolor flow cytometric measurements, functional assays of hemostaseologic efficacy, and evaluation of regulatory effector molecules...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28965577/effects-of-biological-factors-and-health-condition-on-mercury-and-selenium-concentrations-in-the-cartilage-meniscus-and-anterior-cruciate-ligament
#17
Danuta I Kosik-Bogacka, Natalia Lanocha-Arendarczyk, Karolina Kot, Zaneta Ciosek, Pawel Zietek, Maciej Karaczun, Bogumila Pilarczyk, Agnieszka Tomza-Marciniak, Joanna Podlasinska, Elzbieta Kalisinska, Joanna Pyzia
Due the long-term nature of joint tissue remodeling processes, knee structures including meniscus and anterior cruciate ligament (ACL) can be a model for studying the bioaccumulation of mercury (Hg) and selenium (Se). The accumulation and retention of Hg in human tissues can have a negative effect on the proper functioning of homeostasis-affecting organisms. A factor of chronic poisoning with Hg forms is probably the Se:Hg ratio in tissues. Se:Hg molar ratios below one may increase Hg toxicity potentials, while molar ratios that approach or exceed one effectively may protect against Hg toxicity...
December 2017: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/28936834/-advances-of-toxicity-evaluation-of-cinnabar-and-compatibility-necessity-analysis
#18
REVIEW
Tong Ding, Jiao-Yang Luo, Xu Han, Shi-Hai Yang, Rui-Chao Lin, Mei-Hua Yang
Cinnabars are widely used in the clinic and shows unique efficacy, and it has been used in treating diseases for thousands of years either single-use or combination with other traditional Chinese medicines. Cinnabar mainly contains mercury, which displays obvious hepatotoxicity and nephrotoxicity. The safety of cinnabar and its rational use caused extensive attention. However, there are some misunderstanding that cinnabar shows equivalent toxicity to the toxicity of mercury compounds such as mercuric chloride and methylmercury in safety evaluation of cinnabar, which in our view exaggerates the toxicity...
December 2016: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28889271/neurotoxicity-of-metal-mixtures
#19
V M Andrade, M Aschner, A P Marreilha Dos Santos
Metals are the oldest toxins known to humans. Metals differ from other toxic substances in that they are neither created nor destroyed by humans (Casarett and Doull's, Toxicology: the basic science of poisons, 8th edn. McGraw-Hill, London, 2013). Metals are of great importance in our daily life and their frequent use makes their omnipresence and a constant source of human exposure. Metals such as arsenic [As], lead [Pb], mercury [Hg], aluminum [Al] and cadmium [Cd] do not have any specific role in an organism and can be toxic even at low levels...
2017: Advances in Neurobiology
https://www.readbyqxmd.com/read/28889263/chemical-speciation-of-selenium-and-mercury-as-determinant-of-their-neurotoxicity
#20
C S Oliveira, B C Piccoli, M Aschner, J B T Rocha
The antagonism of mercury toxicity by selenium has been well documented. Mercury is a toxic metal, widespread in the environment. The main target organs (kidneys, lungs, or brain) of mercury vary depending on its chemical forms (inorganic or organic). Selenium is a semimetal essential to mammalian life as part of the amino acid selenocysteine, which is required to the synthesis of the selenoproteins. This chapter has the aim of disclosing the role of selenide or hydrogen selenide (Se(-2) or HSe(-)) as central metabolite of selenium and as an important antidote of the electrophilic mercury forms (particularly, Hg(2+) and MeHg)...
2017: Advances in Neurobiology
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