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Mercury poisoning

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https://www.readbyqxmd.com/read/28889271/neurotoxicity-of-metal-mixtures
#1
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
#2
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
https://www.readbyqxmd.com/read/28858755/calls-to-florida-poison-control-centers-about-mercury-trends-over-2003-2013
#3
Matthew O Gribble, Aniruddha Deshpande, Wendy B Stephan, Candis M Hunter, Richard S Weisman
OBJECTIVE: The aim of this analysis was to contrast trends in exposure-report calls and informational queries (a measure of public interest) about mercury to the Florida Poison Control Centers over 2003-2013. MATERIALS AND METHODS: Poison-control specialists coded calls to Florida Poison Control Centers by substance of concern, caller demographics, and whether the call pertained to an exposure event or was an informational query. For the present study, call records regarding mercury were de-identified and provided along with daily total number of calls for statistical analysis...
August 28, 2017: Environmental Research
https://www.readbyqxmd.com/read/28844937/dimercapto-1-propanesulfonic-acid-dmps-induces-metaphase-ii-mouse-oocyte-deterioration
#4
Sarah R Aldhaheri, Roohi Jeelani, Hamid-Reza Kohan-Ghadr, Sana N Khan, Sasha Mikhael, Christina Washington, Robert T Morris, Husam M Abu-Soud
In light of the recent lead contamination of the water in Flint, Michigan and its potential adverse outcomes, much research and media attention has turned towards the safety profile of commonly used chelators. Dimercapto-1-propanesulfonic acid (DMPS) typically used in the treatment of lead, mercury and arsenic poisoning also displays a high affinity towards transition metals such as zinc and copper, essential for biological functioning. It is given in series of dosages (0.2-0.4g/day) over a long period, and has the ability to enter cells...
August 24, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28701428/a-mercury-toxicity-case-complicated-by-hyponatremia-and-abnormal-endocrinological-test-results
#5
Matthew Carter, Abdul Abdi, Fareeha Naz, Farouq Thabet, Arpita Vyas
Mercury (Hg) poisoning is considered a rare disease by the National Institutes of Health and the diagnosis can present great challenges to clinicians. Children who are exposed to Hg can present with a wide variety of symptoms, including acrodynia, tremor, excessive salivation, and psychiatric symptoms, including insomnia. However, endocrinologic manifestations from Hg exposure are less well known. This is a case report of a 12-year-old boy who presented with body rash, irritability, insomnia, and profuse sweating after returning from a summer camp...
August 2017: Pediatrics
https://www.readbyqxmd.com/read/28666216/assessment-of-28-trace-elements-and-17-amino-acid-levels-in-muscular-tissues-of-broiler-chicken-gallus-gallus-suffering-from-arsenic-trioxide
#6
Si-Wen Li, Ying He, Hong-Jing Zhao, Yu Wang, Juan-Juan Liu, Yi-Zhi Shao, Jing-Lun Li, Xiao Sun, Li-Na Zhang, Ming-Wei Xing
The contents of 28 trace elements, 17 amino acid were evaluated in muscular tissues (wings, crureus and pectoralis) of chickens in response to arsenic trioxide (As2O3). A total of 200 one-day-old male Hy-line chickens were fed either a commercial diet (C-group) or an As2O3 supplement diet containing 7.5mg/kg (L-group), 15mg/kg (M-group) or 30mg/kg (H-group) As2O3 for 90 days. The elements content was analyzed by inductively coupled plasma mass spectrometry (ICP-MS). Under As2O3 exposure, the concentration of As were elevated 8...
June 27, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28649389/cases-of-acute-mercury-poisoning-by-mercury-vapor-exposure-during-the-demolition-of-a-fluorescent-lamp-factory
#7
Sang Yoon Do, Chul Gab Lee, Jae Yoon Kim, Young Hoon Moon, Min Sung Kim, In Ho Bae, Han Soo Song
BACKGROUND: In 2015, workers dismantling a fluorescent lamp factory in Korea were affected by mercury poisoning from exposure to mercury vapor. CASE PRESENTATION: Eighteen out of the 21 workers who participated in the demolition project presented with symptoms of poisoning and, of these, 10 had persistent symptoms even at 18 months after the initial exposure to mercury vapor. Early symptoms of 18 workers included a general skin rash, pruritus, myalgia, sleep disturbance, and cough and sputum production...
2017: Annals of Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/28643849/prevalence-of-exposure-of-heavy-metals-and-their-impact-on-health-consequences
#8
Kanwal Rehman, Fiza Fatima, Iqra Waheed, Muhammad Sajid Hamid Akash
Even in the current era of growing technology, the concentration of heavy metals present in drinking water is still not within the recommended limits as set by the regulatory authorities in different countries of the world. Drinking water contaminated with heavy metals namely; arsenic, cadmium, nickel, chromium, mercury, chromium, zinc and lead is becoming a major health concern for public and health care professionals. Occupational exposure to heavy metals is known to occur by the utilization of these metals in various industrial processes and/or contents including color pigments and alloys...
June 23, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28612926/the-use-of-silver-amalgam-for-treatment-of-shell-ulcerations-in-turtles-60-cases
#9
F Spadola, M Morici
Shell ulcers were diagnosed based on clinical appearance in 60 turtles. Under general anaesthesia, surgical curettage was performed using a burr mounted on a micro-grinder. A calcium hydroxide paste was applied to the debrided lesions before the application of restorative material. Lesions were completely filled with rapidly hardening silver amalgam. Treated terrapins were hospitalised in dry containers and later were housed in tanks with controlled temperature 24 hours. Fillings were found spontaneously expulsed at various periods after placement...
June 14, 2017: Journal of Small Animal Practice
https://www.readbyqxmd.com/read/28594236/the-blood-of-my-veins-mercury-minamata-and-the-soul-of-japan
#10
Gerald F O'Malley
The methylmercury contamination of Minamata Bay during the WWII postwar period resulted in thousands of Japanese citizens suffering horrific neurological injury. Fear and miscommunication destroyed and changed family and social structure. In addition, the Minamata poisoning caused momentous changes in the civic discourse in Japan and was an instrumental event in the democratization of the country. This manuscript describes the effects that the environmental contamination and human poising had in the transition of Japan from a feudal society to a democratic one...
September 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28578479/vulnerability-associated-with-symptoms-similar-to-those-of-mercury-poisoning-in-communities-from-xingu-river-amazon-basin
#11
Flávio Mnaoel Rodrigues Da Silva-Junior, Ritta M Oleinski, Antonia E S Azevedo, Kátia C M C Monroe, Marina Dos Santos, Tatiane Britto Da Silveira, Adrianne Maria Netto De Oliveira, Maria Cristina Flores Soares, Tatiana Da Silva Pereira
The Brazilian Amazon is known to be a region with high levels of mercury (Hg) in the environment and studies point to an association between high levels of natural mercury in the mother rock and the vast number of clandestine gold mines. Other studies already report the contamination of fish in this region, as well as high levels of Hg in biological material from environmentally exposed populations. On the other hand, this is one of the least developed regions of the planet and it is necessary to understand the vulnerability factors in these populations that may be intoxicated by this element...
June 3, 2017: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/28524771/mercury-levels-in-parturient-and-newborns-from-aveiro-region-portugal
#12
Ana Catarina Alves, Marta S Monteiro, Ana Luísa Machado, Mário Oliveira, Ana Bóia, Ana Correia, Nuno Oliveira, Amadeu M V M Soares, Susana Loureiro
Since the outbreak of methylmercury (MeHg) poisoning in Japan and Iraq, mercury (Hg) is classified as well-established teratogen. The Portuguese region of Aveiro faced some decades ago an environmental Hg contamination due to activities from a chlor-alkali plant. Until now, no apparent evaluation was conducted regarding prenatal exposure to Hg in this area. The main objectives of this study were to: i) assess maternal and fetal exposure to Hg in the Aveiro region using noninvasive biological matrices; ii) examine the influence of variables that may contribute to Hg exposure during pregnancy; and iii) improve knowledge regarding metal accumulation and distribution over the maternal-fetal-placental unit...
May 19, 2017: Journal of Toxicology and Environmental Health. Part A
https://www.readbyqxmd.com/read/28498799/dietary-luteolin-attenuates-chronic-liver-injury-induced-by-mercuric-chloride-via-the-nrf2-nf-%C3%AE%C2%BAb-p53-signaling-pathway-in-rats
#13
Haili Zhang, Xiao Tan, Daqian Yang, Jingjing Lu, Biying Liu, Ruiqi Baiyun, Zhigang Zhang
Mercury exposure is a common cause of metal poisoning which is biotransformed to highly toxic metabolites thus eliciting biochemical alterations and oxidative stress. Luteolin, a phenolic compound found in many natural products, has multiple biological functions. Our study was aimed to explore the biological effects of luteolin in a liver injury model induced in rats by mercuric chloride (HgCl2). Criteria for injury included liver enzyme, glutathione and malondialdehyde levels, histopathology, TUNEL assay, hepatocyte viability and reactive oxygen species levels...
June 20, 2017: Oncotarget
https://www.readbyqxmd.com/read/28494418/zingiber-officinale-and-6-gingerol-alleviate-liver-and-kidney-dysfunctions-and-oxidative-stress-induced-by-mercuric-chloride-in-male-rats-a-protective-approach
#14
Deepmala Joshi, Sunil Kumar Srivastav, Sateesh Belemkar, Vaibhav A Dixit
Mercury toxicity is an emerging problem in the world as its concentration is rising continuously due to increased industrial, medicinal and domestic uses. Exposure to mercury represents a serious challenge to humans and other living biomes. The aim of the present study was to assess the protective effect of natural products as Zingiber officinale extract and its active compound (6-gingerol) against mercuric chloride-induced hepatorenal toxicity and oxidative stress in male rats. Male Sprague-Dawley rats (150±10g, n=6 per group) were administered HgCl2 (12μmol/kg, ip; once only) the treatment of Zingiber officinale Rosc...
July 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28472024/mercury-poisoning-at-a-home-day-care-center-hillsborough-county-florida-2015
#15
Mackenzie Tewell, Samantha Spoto, Michael Wiese, Alfred Aleguas, Tamas Peredy
On November 12, 2015, the Florida Poison Information Center Tampa notified the Florida Department of Health in Hillsborough County of a boy aged 3 years with a urine mercury level of 79 μg/L (normal <10 μg/L). The patient had been admitted to the hospital on October 9, 2015 after a 3-4 week history of anorexia, weight loss, and lethargy. In the hospital, he developed a maculopapular rash, acrodynia (painful, pink discoloration of the hands and feet), tachycardia, hypertension, weakness, sweating, excessive salivation, and altered mental status...
May 5, 2017: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/28394636/hazardous-properties-and-toxicological-update-of-mercury-from-fish-food-to-human-health-safety-perspective
#16
Charles Odilichukwu R Okpala, Giacomo Sardo, Sergio Vitale, Gioacchino Bono, Augustine Arukwe
The mercury (Hg) poisoning of Minamata Bay of Japan widely activated a global attention to Hg toxicity and its potential consequences to the aquatic ecosystem and human health. This has resulted to an increased need for a dynamic assembly, contextualization, and quantification of both the current state-of-the-art and approaches for understanding the cause-and-effect relationships of Hg exposure. Thus, the objective of this present review is to provide both hazardous toxic properties and toxicological update of Hg, focusing on how it ultimately affects the aquatic biota to potentially produce human health effects...
April 10, 2017: Critical Reviews in Food Science and Nutrition
https://www.readbyqxmd.com/read/28385869/the-interwoven-history-of-mercury-poisoning-in-ontario-and-japan
#17
(no author information available yet)
No abstract text is available yet for this article.
March 27, 2017: CMAJ: Canadian Medical Association Journal, Journal de L'Association Medicale Canadienne
https://www.readbyqxmd.com/read/28368103/predesigned-metal-anchored-building-block-for-in-situ-generation-of-pd-nanoparticles-in-porous-covalent-organic-framework-application-in-heterogeneous-tandem-catalysis
#18
Mohitosh Bhadra, Himadri Sekhar Sasmal, Arghya Basu, Siba P Midya, Sharath Kandambeth, Pradip Pachfule, Ekambaram Balaraman, Rahul Banerjee
The development of nanoparticle-polymer-hybrid-based heterogeneous catalysts with high reactivity and good recyclability is highly desired for their applications in the chemical and pharmaceutical industries. Herein, we have developed a novel synthetic strategy by choosing a predesigned metal-anchored building block for in situ generation of metal (Pd) nanoparticles in the stable, porous, and crystalline covalent organic framework (COF), without using conventional reducing agents. In situ generation of Pd nanoparticles in the COF skeleton is explicitly confirmed from PXRD, XPS, TEM images, and (15)N NMR spectral analysis...
April 10, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28359035/design-of-mno2-ceo2-mno2-hierarchical-binary-oxides-for-elemental-mercury-removal-from-coal-fired-flue-gas
#19
Yongpeng Ma, Bailong Mu, Dongli Yuan, Hongzhong Zhang, Haomiao Xu
MnO2/CeO2-MnO2 hierarchical binary oxide was synthesized for elemental mercury (Hg(0)) removal from coal-fired flue gas. CeO2 in-situ grow on the surface of carbon spheres, and that CeO2@CSs acted as precursor for porous MnO2/CeO2-MnO2. XRD, Raman, XPS, FT-IR, and H2-TPR were selected for the physical structural and chemical surface analysis. The results indicated that the composite has sufficient surface oxygen and hierarchical porous structure. The Hg(0) removal experiments results indicated that MnO2/CeO2-MnO2 exhibited excellent Hg(0) removal performance, with an 89% removal efficiency of total 300min at 150°C under 4% O2...
March 16, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28355704/-a-trend-analysis-of-the-incidence-of-occupational-diseases-in-chongqing-china-from-2006-to-2014
#20
X C Liu, D Luo, G L Liu, J Y Zhang, H D Zhang, S Q Cheng
Objective: To investigate the incidence of occupational diseases in Chongqing, China, from 2006 to 2014, and to analyze the harm, features, and trend of occupational diseases in Chongqing. Methods: The data of new cases of occupational diseases from 2006 to 2014 were collected, and the patients with a confirmed diagnosis of occupational diseases were selected as study subjects to analyze the incidence of occupational diseases in Chongqing. Results: There were 17499 cases of occupational diseases in total in Chongqing from 2006 to 2014...
February 20, 2017: Chinese Journal of Industrial Hygiene and Occupational Diseases
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