Results 11 to 20 of about 3,688,199 (198)

Genotoxicity of Mercury and Its Derivatives Demonstrated In Vitro and In Vivo in Human Populations Studies. Systematic Review

open access: yesToxics, 2021
Beside partial coverage in three reviews so far (1994, 2009, 2019), there is no review on genotoxic studies dealing with mercury (Hg) and human exposure using the most usual genotoxic assays: sister chromatid exchanges (SCE), chromosomal aberrations (CA),
Juana Sánchez-Alarcón   +5 more
doaj   +1 more source

Protective effects of organoselenium compounds against methylmercury-induced oxidative stress in mouse brain mitochondrial-enriched fractions

open access: yesBrazilian Journal of Medical and Biological Research, 2011
We evaluated the potential neuroprotective effect of 1-100 µM of four organoselenium compounds: diphenyl diselenide, 3’3-ditri-fluoromethyldiphenyl diselenide, p-methoxy-diphenyl diselenide, and p-chloro-diphenyl diselenide, against methylmercury ...
D.F. Meinerz   +12 more
doaj   +3 more sources

Studies on methylmercury compounds in Ictalurus nebulosus (Le Sueur, 1819) exposed to mercury chloride [PDF]

open access: yesActa Ichthyologica et Piscatoria, 1980
Individuals of Ictalurus nebulosus (Le Sueur, 1819) were bathed in solutions of HgCl2 and CH3HgCl. Methylmercury compounds were detected in muscles, liver, and kidneys of those individuals exposed to HgCl2, which indicates mercury methylation to have ...
M. Studnicka
doaj   +3 more sources

Methylmercury determination in freshwater biota and sediments: Static headspace GC-MS compared to direct mercury analyzer

open access: yesMethodsX, 2021
We developed and compared two analytical methods for determination of MeHg in freshwater biota and sediments, by: I) simplified static headspace GC-MS using internal standard (IS) isotope dilution quantification, after microwave acid digestion and ...
Lucia Valsecchi   +3 more
doaj   +1 more source

Assessment of the effects of organic vs. inorganic arsenic and mercury in Caenorhabditis elegans

open access: yesCurrent Research in Toxicology, 2022
Exposures to mercury and arsenic are known to pose significant threats to human health. Effects specific to organic vs. inorganic forms of these toxic elements are less understood however, especially for organic dimethylarsinic acid (DMA), which has ...
Jessica Camacho   +4 more
doaj   +1 more source

Sedimentary Mercury Enrichments as a Tracer of Large Igneous Province Volcanism

open access: yesGeophysical Monograph Series, Page 247-262., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Lawrence M. E. Percival   +3 more
wiley  

+1 more source

Using Carbon Paste Electrode Modified with Ion Imprinted Polymer and MWCNT for Electrochemical Quantification of Methylmercury in Natural Water Samples

open access: yesBiosensors, 2022
Methylmercury (MeHg) is one of the most toxic organic mercury compounds found in the environment. The continuous exposure of human beings to this highly toxic compound may damage their nervous system.
Ruddy Mesa   +3 more
doaj   +1 more source

Evaluation of cytoprotective effects of compounds isolated from Copaifera langsdorffii Desf. against induced cytotoxicity by exposure to methylmercury and lead

open access: yesNatural Product Research, 2019
Copaifera langsdorffii L. is one of the most known medicinal species in Brazil. Its leaves are rich in phenolic compounds with potential biological activities as an antioxidant and chelating agent.
J. Aldana   +10 more
semanticscholar   +1 more source

Effect of Metallothionein-III on Mercury-Induced Chemokine Gene Expression

open access: yesToxics, 2018
Mercury compounds are known to cause central nervous system disorders; however the detailed molecular mechanisms of their actions remain unclear.
Jin-Yong Lee   +7 more
doaj   +1 more source

Mercury Exposure in a Riverside Amazon Population, Brazil: A Study of the Ototoxicity of Methylmercury

open access: yesInternational Archives of Otorhinolaryngology, 2015
Introduction Mercury poisoning causes hearing loss in humans and animals. Acute and long-term exposures produce irreversible peripheral and central auditory system damage, and mercury in its various forms of presentation in the environment is ototoxic.
Ana Hoshino   +6 more
doaj   +1 more source

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