نتایج جستجو برای: mercury metal

تعداد نتایج: 236533  

Journal: :iranian journal of child neurology 0
m. sharifian md associate professor of pediatric nephrology, shahid beheshti of medical university m. noorisafa md assistant professor, shahid beheshti university m. kiahosseini md general practitioner

objective mercury poisoning is one of the important recent causes of mortality and mortality in children worldwide, particularly in industrial environments; mercury is a poisonous metal, especially harmful to the nervous and immune systems and the kidneys and can even be fatal. elemental mercury is present in thermometers, barometer batteries, sphygmomanometers and latex paints. inorganic mercu...

Background: Metal pollution is a problem in many parts of the world. These metals can be harmful when they exceed the recommended limits. By analyzing metal concentrations in living organisms, it is possible to deduce the bioavailability and the level of environmental contamination for specific metals in an ecosystem. The aim of this study was to determine the heavy metals copper, cadmium, lead...

Journal: :Environmental Health Perspectives 1999
P E Bigazzi

The causes of autoimmune responses leading to human kidney pathology remain unknown. However, environmental agents such as microorganisms and/or xenobiotics are good candidates for that role. Metals, either present in the environment or administered for therapeutic reasons, are prototypical xenobiotics that cause decreases or enhancements of immune responses. In particular, exposure to gold and...

Journal: :Neuro endocrinology letters 2004
Jarmila Prochazkova Ivan Sterzl Hana Kucerova Jirina Bartova Vera D M Stejskal

BACKGROUND Patients with certain autoimmune and allergic diseases, such as systemic lupus, multiple sclerosis, autoimmune thyroiditis or atopic eczema, often show increased lymphocyte stimulation by low doses of inorganic mercury in vitro. The patients often report clinical metal hypersensitivity, especially to nickel. OBJECTIVE AND METHODS In this study we examined the health impact of amalg...

Journal: :Environmental health and preventive medicine 2006
Shun'ichi Honda Lars Hylander Mineshi Sakamoto

Mercury is a metal that has long been used because of its many advantages from the physical and chemical points of view. However, mercury is very toxic to many life forms, including humans, and mercury poisoning has repeatedly been reported. The main chemical forms of mercury are elemental mercury (Hg(0)), divalent mercury (Hg(2+)) and methylmercury (CH(3)-Hg(+)), the toxicities and metabolisms...

2013
Paolo D. Pigatto Claudio Minoia Anna Ronchi Gianpaolo Guzzi

In their review, Esteban-Vasallo et al. (2012) discussed the use of human placenta to evaluate bio markers of exposure to heavy metals. They correctly concluded that the use of placental tissue specimens to assess heavy metal exposure is actually under used. Surprisingly, they did not mention the well-documented relationship between mercury released from mercury-containing dental amalgam fillin...

Journal: :Journal of clinical hypertension 2011
Mark C Houston

Mercury has a high affinity for sulfhydryl groups, inactivating numerous enzymatic reactions, amino acids, and sulfur-containing antioxidants (N-acetyl-L-cysteine, alpha-lipoic acid, L-glutathione), with subsequent decreased oxidant defense and increased oxidative stress. Mercury binds to metallothionein and substitute for zinc, copper, and other trace metals, reducing the effectiveness of meta...

Journal: :Journal of research of the National Bureau of Standards 1946
E R SMITH J K TAYLOR R E SMITH

Polarographic waves of certain metals, notably of lead, zinc, copper, cobalt, and nickel in dilute neutral solutions, diminish progressively with time in the presence of mercury and air. This behavior is not to be explained by adsorption, as has previously been supposed, but by a reaction between mercury. water, oxygen, and the ions of the metallic salt which, in some instances, precipitates th...

2013
María D. Esteban-Vasallo Nuria Aragonés Marina Pollan Gonzalo López-Abente Beatriz Perez-Gomez

In their review, Esteban-Vasallo et al. (2012) discussed the use of human placenta to evaluate bio markers of exposure to heavy metals. They correctly concluded that the use of placental tissue specimens to assess heavy metal exposure is actually under used. Surprisingly, they did not mention the well-documented relationship between mercury released from mercury-containing dental amalgam fillin...

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