نتایج جستجو برای: mercury compounds
تعداد نتایج: 266231 فیلتر نتایج به سال:
The widespread use of mercurial diuretics has stimulated greater interest in the metabolism of organic mercurials in man. Recently proposed regimens (1) involving frequent, even daily, administration of mercurials, have focused particular attention on the 24 hour excretion of these compounds in relation to the cumulative toxicity of any mercury which may be retained. Moreover, little is known o...
BACKGROUND Mercury and mercury compounds (inorganic and organic) can cause acute or chronic poisoning. Acute poisonings, especially with inorganic salts, are widely described, but only sparse data are available on intoxication from oral elemental mercury. We report a case of elemental mercury ingestion followed by pulmonary aspiration of the elemental mercury. CASE REPORT A 49-year-old woman ...
Mercury is recognized internationally as an important pollutant, since mercury and its compounds are persistent, bioaccumulative and toxic, and pose human and ecosystem risks. Although mercury can cycle in the environment in all media, an important aspect of this cycling is the bioaccumulation of mercury along the aquatic food chain. Mercury, in the form of methylmercury, bioaccumulates up the ...
Mercury is a toxic heavy metal that is an environmental and industrial pollutant throughout the world. Mercury exposure leads to many physiopathological injuries in mammals. However, the precise toxicological effects of mercury on pancreatic islets in vivo are still unclear. Here, we investigated whether mercuric compounds can induce dysfunction and damage in the pancreatic islets of mice, as w...
Mercury pollution threatens the environment and human health across the globe. This neurotoxic substance is encountered in artisanal gold mining, coal combustion, oil and gas refining, waste incineration, chloralkali plant operation, metallurgy, and areas of agriculture in which mercury-rich fungicides are used. Thousands of tonnes of mercury are emitted annually through these activities. With ...
A systematic series of seven mercury compounds of (E)-N-(pyridin-2-ylmethylidene)arylamine (L), where L is a variously R substituted ligand, with the formulations [HgX2L]2: X = Cl; R = 4-CH2CH3 (4), 4-OCH2CH3 (5), 4-Cl (6), 2-CO2CH3 (7), or 4-CO2CH3 (8); X = Br; R = 4-CO2CH3 (9a) and [HgX2L]: X = Br; R = 4-CO2CH3 (9b) and X = I; R = 4-CO2CH3 (10), were synthesized. All compounds have been struc...
P2X receptor channels (P2XRs) are allosterically modulated by several compounds, mainly acting at the ectodomain of the receptor. Like copper, mercury, a metal that induces oxidative stress in cells, also stimulates the activity of P2X(2)R and inhibits the activity of P2X(4)R. However, the mercury modulation is not related to the extracellular residues critical for copper modulation. To identif...
Mercury(II) or Hg, is neurotoxic. When exposed to normal brain tissue homogenates, neurons in culture, Hg (mercury(II) or mercuric mercury) is capable of causing many of the same biochemical aberrancies found in Alzheimer’s diseased (AD) brain. Also, rats exposed to mercury(0), metallic mercury, vapor show some of these same abnormalities in their brain tissue. Specifically, the rapid inactivat...
introduction: wastewaters of chemical, petrochemical, electrical, pharmaceutical and paper industries are the main sources of mercury and its compounds. mercury is one of the toxic elements, so its removal from water and industrial wastewaters seems to be important and essential. the objective of this study was to investigate effective factors such as ph, contact time, absorbent dose, mixing ra...
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