7,285 results match your criteria Toxicity Mercury


Differential effects of nickel dosages on in vitro and in vivo seed germination and expression of a high affinity nickel-transport family protein (AT2G16800) in trembling aspen (Populus tremuloides).

Ecotoxicology 2018 Dec 14. Epub 2018 Dec 14.

Department of Biology, Laurentian University, Sudbury, Ontario, P3E 2C6, Canada.

It has been demonstrated that a number of metals including mercury (Hg), zinc (Zn), cadmium (Cd), cobalt (Co), lead (Pb), copper (Cu), and nickel (Ni) decrease seed germination rates and plant growth. The threshold levels of metal toxicity on seed germination, plant development, and gene regulation have not been studied in detail. The main objective of this study was to assess in vitro and in vivo the effects of different doses of nickel on Trembling aspen (Populus tremuloides) seed germination and regulation of the high affinity nickel transporter family protein (AT2G16800) gene. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1007/s10646-018-2003-8DOI Listing
December 2018
1 Read

Renal toxicity of heavy metals (cadmium and mercury) and their amelioration with ascorbic acid in rabbits.

Environ Sci Pollut Res Int 2018 Dec 13. Epub 2018 Dec 13.

Department of Veterinary Biomedical Sciences, PMAS Arid Agriculture University, Rawalpindi, PK-46300, Pakistan.

Cadmium and mercury are among the most toxic and dangerous environmental pollutants that may cause fatal implications. Vitamin C is an important chain-breaking antioxidant and enzyme co-factor against heavy metals. The objective of the present study was to evaluate the toxicological effects of cadmium chloride, mercuric chloride, and their co-administration on biochemical parameters of blood serum and metal bioaccumulation in kidneys and also to elucidate the protective effect of vitamin C in rabbits against these metals. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1007/s11356-018-3819-8DOI Listing
December 2018
2 Reads
2.828 Impact Factor

Freshwater neotropical oligochaetes as native test species for the toxicity evaluation of cadmium, mercury and their mixtures.

Ecotoxicology 2018 Dec 13. Epub 2018 Dec 13.

Department of Ecology and Evolutionary Biology, Federal University of São Carlos, Rodovia Washington Luís, km 235, São Carlos, SP, 13565-905, Brazil.

The toxicity of metals, whether isolated or in mixtures, involves changes in biochemical processes as well as in cell membranes, which may lead to deleterious short- and long-term effects on the affected organisms. Among metals, cadmium and mercury stand out due to their abundance in nature, frequent use for industrial activities and biological accumulation, with high levels of residence in trophic chains. Benthic communities are particularly prone to metal pollution since metals usually accumulate in sediments. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1007/s10646-018-2006-5DOI Listing
December 2018
1 Read

An appraisal of properties of dental amalgam using commercially available and ayurvedically recycled mercury: Recycle and reuse.

J Conserv Dent 2018 Nov-Dec;21(6):651-656

Department of Mechanical Engineering, IIT, BHU, Varanasi, Uttar Pradesh, India.

Introduction: With the introduction of tooth-colored restoration material, the usage of amalgam has reduced over years. However, results regarding toxicity and health concerns are conflicting. Based on the concept of recycle and reuse, we previously used an ayurvedic method for purification of excess mercury obtained from dental operatory. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.4103/JCD.JCD_114_18DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6249937PMC
December 2018

Genetic, Reproductive and Hematological Toxicity Induced in Mice Exposed to Leachates from Petrol, Diesel and Kerosene Dispensing Sites.

J Health Pollut 2017 Dec 18;7(16):58-70. Epub 2017 Dec 18.

Department of Biology, Federal University of Technology, Akure, Ondo State, Nigeria.

Background: With a population of over 165,000,000, growing at an average rate of 2.7% per annum and an economic growth rate of about 5.7% in the past five years, the market for refined petroleum products in Nigeria is growing. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.5696/2156-9614-7.16.58DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6221447PMC
December 2017

Oxidative and haemostatic effects of copper, manganese and mercury, alone and in combination at physiologically relevant levels: An ex vivo study.

Hum Exp Toxicol 2018 Dec 12:960327118818236. Epub 2018 Dec 12.

1 Department of Anatomy, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa.

Water contamination with metals due to anthropogenic activity is increasing and subsequent exposure increases the risk of associated toxicity. Exposure is not limited to a single metal but usually involves mixtures of different metals at different concentrations. Little is known about the contribution of this type of exposure, in humans, to the development of non-communicable diseases such as cardiovascular disease, and an increased risk to thrombosis. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1177/0960327118818236DOI Listing
December 2018
2 Reads

Immobilized bacterial biosensor for rapid and effective monitoring of acute toxicity in water.

Ecotoxicol Environ Saf 2018 Dec 6;170:205-209. Epub 2018 Dec 6.

Department of Pharmacy, Faculty of Health Sciences, Jenderal Soedirman University, Purwokerto 53123, Indonesia.

The use of biosensors by using microorganisms such as bacteria have short life cycles and provide other advantages. One colorimetric biosensor technique that has been developed is the use of a biosensor utilizing the incorporation of Prussian blue formation reactions mediated by E. coli bioreactors with ferricyanide. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.ecoenv.2018.11.141DOI Listing
December 2018

Monomethylmercury degradation by the human gut microbiota is stimulated by protein amendments.

J Toxicol Sci 2018 ;43(12):717-725

Department of Biology, Faculty of Science, University of Ottawa, Ottawa, Canada K1N 9B4.

Monomethylmercury (MMHg) is a potent neurotoxicant that can be bioaccumulated and biomagnified through trophic levels. Human populations whose diets contain MMHg are at risk of MMHg toxicity. The gut microbiota was identified as a potential factor causing variation in MMHg absorption and body burden. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.2131/jts.43.717DOI Listing
January 2018
1 Read

A coupled multivariate statistics, geostatistical and machine-learning approach to address soil pollution in a prototypical Hg-mining site in a natural reserve.

Chemosphere 2018 Nov 26;218:767-777. Epub 2018 Nov 26.

INDUROT and Environmental Technology, Biotechnology, and Geochemistry Group, Universidad de Oviedo, Campus de Mieres, 33600 Mieres, Asturias, Spain. Electronic address:

The impact of mining activities on the environment is vast. In this regard, many mines were operating well before the introduction of environmental law. This is particularly true of cinnabar mines, whose activity has declined for decades due to growing public concern regarding Hg high toxicity. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.chemosphere.2018.11.172DOI Listing
November 2018
1 Read

Resveratrol treatment reduces the vulnerability of SH-SY5Y cells and cortical neurons overexpressing SOD1-G93A to Thimerosal toxicity through SIRT1/DREAM/PDYN pathway.

Neurotoxicology 2018 Nov 29;71:6-15. Epub 2018 Nov 29.

Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, "Federico II" University of Naples, Naples 80131, Italy; Division of Pharmacology, Department of Science and Technology, University of Sannio, 82100 Benevento, Italy. Electronic address:

In humans, mutation of glycine 93 to alanine of Cu/Zn superoxide dismutase type-1 (SOD1-G93 A) has been associated to some familial cases of Amyotrophic Lateral Sclerosis (ALS). Several evidence proposed the involvement of environmental pollutants that like mercury could accelerate ALS symptoms. SH-SY5Y cells stably transfected with SOD1 and G93 A mutant of SOD1 constructs were exposed to non-toxic concentrations (0. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.neuro.2018.11.009DOI Listing
November 2018

Intestinal Methylation and Demethylation of Mercury.

Bull Environ Contam Toxicol 2018 Dec 4. Epub 2018 Dec 4.

CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, HKU-IHEP Joint Laboratory on Metallomics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China.

Mercury (Hg) is a global pollutant, which is linked with different diseases. The methylation of Hg and demethylation of methylmercury (MeHg) in the environment were extensively studied and summarized; however, the transformation of Hg in the intestine is less presented. In this review, the research progress and the perspectives on the intestinal transformation of Hg were discussed. Read More

View Article

Download full-text PDF

Source
http://link.springer.com/10.1007/s00128-018-2512-4
Publisher Site
http://dx.doi.org/10.1007/s00128-018-2512-4DOI Listing
December 2018
3 Reads

Acute and Sublethal Effects of Ethylmercury Chloride on Chinese Rare Minnow (Gobiocypris rarus): Accumulation, Elimination, and Histological Changes.

Bull Environ Contam Toxicol 2018 Dec 4. Epub 2018 Dec 4.

State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China.

Ethylmercury (EtHg) has been widely observed in the environment due to anthropogenic contamination and/or environmental ethylation of inorganic mercury. Herein, the acute and sublethal effect of EtHg chloride on Chinese rare minnow (Gobiocypris rarus) as a fish model was studied. EtHg chloride showed an obvious toxicity to 4-month-old Chinese rare minnow (LC50 24. Read More

View Article

Download full-text PDF

Source
http://link.springer.com/10.1007/s00128-018-2513-3
Publisher Site
http://dx.doi.org/10.1007/s00128-018-2513-3DOI Listing
December 2018
6 Reads

modulation of mercury-induced rat liver mitochondria dysfunction.

Toxicol Res (Camb) 2018 Nov 10;7(6):1135-1143. Epub 2018 Jul 10.

State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources , School of Chemistry and Pharmaceutical Sciences , Guangxi Normal University , Guilin 541004 , P. R. China.

Mercury (Hg) is a toxic environmental pollutant that exerts its cytotoxic effects as cations by targeting mitochondria. In our work, we determined different mitochondrial toxicity factors using specific substrates and inhibitors following the addition of Hg to the mitochondria isolated from Wistar rat liver . We found that Hg induced marked changes in the mitochondrial ultrastructure accompanied by mitochondrial swelling, mitochondrial membrane potential collapse, mitochondrial membrane fluidity increase and Cytochrome release. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1039/c8tx00060cDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6220722PMC
November 2018

Cytoprotective effects of imidazole-based [S] and [S]-donor ligands against mercury toxicity: a bioinorganic approach.

Metallomics 2018 Nov 29. Epub 2018 Nov 29.

Department of Chemistry, School of Natural Sciences, Shiv Nadar University, NH91, Dadri, Gautam Buddha Nagar, UP 201314, India.

Here we report the coordination behaviour of an imidazole-based [S1]-donor ligand, 1,3-dimethyl-imidazole-2(3H)-thione (L1), and [S2]-donor ligand, 3,3'-methylenebis(1-methyl-imidazole-2(3H)-thione) (L2) or 4,4'-(3,3'-methylenebis-(2-thioxo-2,3-dihydro-imidazole-3,1-diyl))dibutanoic acid (L3), with HgX2 (X = Cl, Br or I) in solution and the solid state. NMR, UV-Vis spectroscopic, and single crystal X-ray studies demonstrated that L1 or L2 coordinated rapidly and reversibly to the mercury center of HgX2 through the thione moiety. Treatment of L2 with HgCl2 or HgBr2 afforded 16-membered metallacycle k1-(L2)2Hg2Cl4 or k1-(L2)2Hg2Br4 where two Cl or Br atoms are located inside the ring. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1039/c8mt00237aDOI Listing
November 2018

Relations between mercury fractions and microbial community components in seawater under the presence and absence of probable phosphorus limitation conditions.

J Environ Sci (China) 2019 Jan 23;75:145-162. Epub 2018 Mar 23.

Department of Environmental Sciences, Jožef Stefan Institute, Ljubljana 1000, Slovenia; Jožef Stefan International Postgraduate School, Ljubljana 1000, Slovenia. Electronic address:

Microbial transformations of toxic monomethylmercury (MMHg) and dissolved gaseous mercury (DGM) at the lower levels of the marine food web are not well understood, especially in oligotrophic and phosphorus-limited seas. To examine the effects of probable phosphorus limitation (P-limitation) on relations between mercury (Hg) fractions and microorganisms, we determined the total mercury (THg), total methylated mercury (MeHg), DGM, and microbiological and chemical parameters in the Central Adriatic Sea. Using statistical analysis, we assessed the potential microbial effects on Hg transformations and bioaccumulation. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.jes.2018.03.012DOI Listing
January 2019
2 Reads

Effects of acute mercury exposure on fatty acid composition and oxidative stress biomarkers in Holothuria forskali body wall.

Ecotoxicol Environ Saf 2018 Nov 22;169:516-522. Epub 2018 Nov 22.

UR: Physiology and Aquatic Environment, Department of Biology, Faculty of Sciences of Tunis, Univ. Tunis El Manar, 2092 Tunis, Tunisia. Electronic address:

Mercury is one of the most harmful pollutant that threat marine biota. This study assessed the Hg impact on the fatty acid (FA) composition and the antioxidant statues in Holothuria forskali body wall tissue. Specimens were exposed to HgCl graded doses (40, 80 and 160 μg L) for 96 h. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.ecoenv.2018.11.051DOI Listing
November 2018
2.762 Impact Factor

Profiles and potential health risks of heavy metals in soil and crops from the watershed of Xi River in Northeast China.

Ecotoxicol Environ Saf 2018 Nov 21;169:442-448. Epub 2018 Nov 21.

Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, Liaoning, China; Department of Environmental Science, Zhejiang University, Hangzhou 310058, Zhejiang, China. Electronic address:

Heavy metal soil contamination is a major environmental concern in China and has drawn significant public attention in recent years. The present study assessed the human health risk of four heavy metals (cadmium, lead, mercury, and zinc) through soil exposure and dietary intake in the watershed of Xi River, west of Shenyang, Liaoning Province, northeast China. Concentrations of Cd, Pb, Hg, and Zn were determined in 411 soil samples and 59 crop samples collected from this area. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.ecoenv.2018.11.046DOI Listing
November 2018
8 Reads

Supporting evidence for PCB pollution threatening global killer whale population.

Aquat Toxicol 2018 Nov 15;206:102-104. Epub 2018 Nov 15.

Institute for Terrestrial and Aquatic Wildlife Research, University of Veterinary Medicine Hannover, Foundation, 25761, Büsum, Schleswig-Holstein, Germany.

A recent Science report predicted the global killer whale population to collapse due to PCB pollution. Here we present empirical evidence, which supports and extends the reports' statement. In 2016, a neonate male killer whale stranded on the German island of Sylt. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.aquatox.2018.11.008DOI Listing
November 2018
2 Reads

Low doses of methylmercury exposure during adulthood in rats display oxidative stress, neurodegeneration in the motor cortex and lead to impairment of motor skills.

J Trace Elem Med Biol 2019 Jan 11;51:19-27. Epub 2018 Sep 11.

Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Pará, Belém, PA, Brazil. Electronic address:

Despite the vast distribution among tissues, the central nervous system (CNS) represents the main target of methylmercury (MeHg) toxicity. However, few studies have evaluated the effects of MeHg exposure on the CNS at equivalent doses to human environmental exposure. In our study, we evaluated the motor cortex, an important area of motor control, in adult rats chronically exposed to MeHg in a concentration equivalent to those found in fish-eating populations exposed to mercury (Hg). Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.jtemb.2018.09.004DOI Listing
January 2019
3 Reads

Effective removal of mercury from aqueous streams via electrochemical alloy formation on platinum.

Nat Commun 2018 11 19;9(1):4876. Epub 2018 Nov 19.

Department of Physics, Chemical Physics, Chalmers University of Technology, 41296, Göteborg, Sweden.

Retrieval of mercury from aqueous streams has significant environmental and societal importance due to its very high toxicity and mobility. We present here a method to retrieve mercury from aqueous feeds via electrochemical alloy formation on thin platinum films. This application is a green and effective alternative to traditional chemical decontamination techniques. Read More

View Article

Download full-text PDF

Source
http://www.nature.com/articles/s41467-018-07300-z
Publisher Site
http://dx.doi.org/10.1038/s41467-018-07300-zDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6242894PMC
November 2018
3 Reads

Mercury pollution in modern times and its socio-medical consequences.

Sci Total Environ 2018 Nov 2;654:720-734. Epub 2018 Nov 2.

University of Leuven, Center for Human Genetics, Leuven, Belgium.

Mercury plays a critical role in serious health problems due to environmental or occupational exposures. Aquatic ecosystems are an essential component of the global biogeochemical cycle of mercury, as inorganic mercury can5 be converted to toxic methyl mercury in these environments and reemissions of elemental mercury rival anthropogenic mercury releases on a global scale. The history of the Minamata disease, a typical example of industrial pollution, has shown how corporate secrecy and ignorance on part of the health authorities may influence the devastating spread of environmental contamination and the progress of disease. Read More

View Article

Download full-text PDF

Source
https://linkinghub.elsevier.com/retrieve/pii/S00489697183430
Publisher Site
http://dx.doi.org/10.1016/j.scitotenv.2018.10.408DOI Listing
November 2018
11 Reads

The thioredoxin system as a target for mercury compounds.

Biochim Biophys Acta Gen Subj 2018 Nov 14. Epub 2018 Nov 14.

Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, Lisboa 1649-003, Portugal. Electronic address:

Background: Mercury interaction with selenium in vivo has been recognized for >50 years. Several researchers attempted to use selenium to mitigate the detrimental effects of mercurial compounds but the results were controversial. Selenium pools in living organisms are quite low and the high affinity of mercury to bind selenols pointed out selenoproteins as possible targets of toxicity. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.bbagen.2018.11.007DOI Listing
November 2018
1 Read

Nanoelemental selenium alleviated the mercury load and promoted the formation of high-molecular-weight mercury- and selenium-containing proteins in serum samples from methylmercury-poisoned rats.

Ecotoxicol Environ Saf 2018 Nov 13;169:128-133. Epub 2018 Nov 13.

CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, and Laboratory of Metallomics and Nanometallomics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China. Electronic address:

Selenite (Se) has been found to counteract the neurotoxicity of methylmercury (MeHg) in MeHg-poisoned rats. However, Se has narrow range between its toxic and beneficial effects. Nanoelemental selenium (SeNPs) was found to be less toxic than other forms of Se such as Se. Read More

View Article

Download full-text PDF

Source
https://linkinghub.elsevier.com/retrieve/pii/S01476513183110
Publisher Site
http://dx.doi.org/10.1016/j.ecoenv.2018.10.098DOI Listing
November 2018
4 Reads

Proteomic and ecophysiological responses of soybean (Glycine max L.) root nodules to Pb and hg stress.

BMC Plant Biol 2018 Nov 14;18(1):283. Epub 2018 Nov 14.

Proteomics and Bioinformatics Lab, Department of Biotechnology, Jamia Millia Islamia (A Central University), New Delhi, 110025, India.

Background: Lead (Pb) and mercury (Hg) are persistent hazardous metals in industrially polluted soils which can be toxic in low quantities. Metal toxicity can cause changes at cellular and molecular level which should be studied for better understanding of tolerance mechanism in plants. Soybean (Glycine max L. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1186/s12870-018-1499-7DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6237034PMC
November 2018
1 Read

Consolidating probiotic with dandelion, coriander and date palm seeds extracts against mercury neurotoxicity and for maintaining normal testosterone levels in male rats.

Toxicol Rep 2018 27;5:1069-1077. Epub 2018 Oct 27.

Department of Animal Production and Breeding, College of Agriculture and Veterinary Medicine, Qassim University. Buraidah, Qassim, Saudi Arabia.

Objective: Heavy metals are major elements polluting our universe. The inhalation, ingestion or even contacting human body with these elements results in huge health problems. The most common pollutant in our surrounding is mercury. Read More

View Article

Download full-text PDF

Source
https://linkinghub.elsevier.com/retrieve/pii/S22147500183018
Publisher Site
http://dx.doi.org/10.1016/j.toxrep.2018.10.013DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6224333PMC
October 2018
3 Reads

Mercury (Hg), Lead (Pb), Cadmium (Cd), Selenium (Se), and Arsenic (As) in Liver, Kidney, and Feathers of Gulls: A Review.

Rev Environ Contam Toxicol 2018 Nov 10. Epub 2018 Nov 10.

Universidad Autónoma de Chile, Temuco, Chile.

Mercury (Hg), lead (Pb), cadmium (Cd), selenium (Se), and arsenic (As) are metals or metalloids of high concern because of their effects on the environment and, specially, their potential toxicity on the animals inhabiting there. Due to their relevance, these elements have been object of several biomonitoring studies in different animal species around the world. Birds are widespread and, as species, are able to supply specific and relevant information about the regions where they live, being useful as bioindicators, as long as they are not birds with a strong migratory character. Read More

View Article

Download full-text PDF

Source
http://link.springer.com/10.1007/398_2018_16
Publisher Site
http://dx.doi.org/10.1007/398_2018_16DOI Listing
November 2018
4 Reads

Evaluation of Arsenic, Cadmium, Lead and Mercury Contamination in Over-the-Counter Available Dry Dog Foods With Different Animal Ingredients (Red Meat, Poultry, and Fish).

Front Vet Sci 2018 25;5:264. Epub 2018 Oct 25.

Department of Clinical Sciences, Cornell University College of Veterinary Medicine, Ithaca, NY, United States.

To examine the relative levels of heavy metals and arsenic content in commercial dog foods (arsenic, cadmium, lead and mercury) of 51 over-the-counter maintenance or all-life-stage dry dog foods. All products were chosen and segregated based on meat sources (fish, poultry, red-meat-17 products from each category) as animal protein sources being the primary contaminated ingredient due to bioaccumulation. Inductively coupled plasma mass spectrometry (ICP-MS) was performed on products that were classified as fish, red meat (beef, pork, venison, bison) or poultry (chicken, turkey, duck) based. Read More

View Article

Download full-text PDF

Source
https://www.frontiersin.org/article/10.3389/fvets.2018.00264
Publisher Site
http://dx.doi.org/10.3389/fvets.2018.00264DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6209665PMC
October 2018
4 Reads

Alopecia and Associated Toxic Agents: A Systematic Review.

Skin Appendage Disord 2018 Oct 5;4(4):245-260. Epub 2018 Jan 5.

University of California, Irvine, Department of Dermatology, Irvine, California, USA.

Importance/objective: There are a number of toxic agents that can cause alopecia. In this review we summarize the known substances that cause alopecia as one of the clinical signs of overdose or toxicity.

Evidence Review: A search was conducted using PubMed, EMBASE, and Cochrane for studies describing hair loss of any type as a result of exposure to or ingestion of a toxic agent. Read More

View Article

Download full-text PDF

Source
https://www.karger.com/Article/FullText/485749
Publisher Site
http://dx.doi.org/10.1159/000485749DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6219226PMC
October 2018
7 Reads

Lung Function Assessment as an Early Biomonitor of Mercury-Induced Health Disorders in Artisanal and Small-Scale Gold Mining Areas in Indonesia.

Int J Environ Res Public Health 2018 Nov 7;15(11). Epub 2018 Nov 7.

Cyclotron Research Center, Iwate Medical University, 348-58 Tomegamori, Takizawa, Iwate 020-0173, Japan.

The evaluation of mercury impact on humans is currently nonspecific because the body characteristics (homeostasis) of each human being varies. Therefore, in the early diagnosis of mercury toxicity, one of the most important monitoring parameters is the respiratory function examination. In this study, respiratory function was examined with a portable spirometer and correlated with the mercury levels in hair from the noses and heads of subjects. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.3390/ijerph15112480DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6265773PMC
November 2018
4 Reads

Effect of boric acid on some elemental levels on rat's liver and kidney tissues during mercury chloride exposure.

Cell Mol Biol (Noisy-le-grand) 2018 Oct 30;64(13):84-88. Epub 2018 Oct 30.

Department of Physiology, Faculty of Veterinary Science, Siirt University, Siirt, Turkey.

In this study, the effect of boric acid on the important trace elements copper (Cu), iron (Fe), zinc (Zn), manganese (Mn) and nickel (Ni) in liver and kidney tissue of rats treated with mercury chloride was investigated. Twenty-four male Wistar albino rats (weighing 200 ± 300 g) were divided into 3 groups: Control (C), Mercury chloride (HgCl2), Mercury chloride (HgCl2) + boric acid (BA). Iron and copper were decreased whereas Mn, Zn and Ni levels were increased in liver tissue in Hg administered group compared to control. Read More

View Article

Download full-text PDF

Source
October 2018
2 Reads

[Cellular damage of low-dose combined exposure to mercury, lead and cadmium on hippocampal neurons in rats].

Zhonghua Yu Fang Yi Xue Za Zhi 2018 Oct;52(10):976-982

School of Public Health/Jiangxi Provincial Key Laboratory of Preventive Medicine, Nanchang University, Nanchang 330006, China.

To observe the cellular damage of low-dose combined exposure to Hg, Pb and Cd on hippocampal neurons in rat. SH-SY5Y cells were randomly divided into 8 groups by 2×2×2 factorial design: control group, Pb exposure group, Hg exposure group, Pb+Hg exposure group, Pb+Cd exposure group, Hg+Cd exposure group and Pb+Cd+Hg exposure group. And the cell viabilities were measured. Read More

View Article

Download full-text PDF

Source
October 2018
5 Reads

Psidium guajava bioactive product chemical analysis and heavy metal toxicity reduction.

Chemosphere 2019 Feb 26;216:785-793. Epub 2018 Oct 26.

Microbiology and Molecular Biology Laboratory, Regional University of Cariri, Crato, CE, Brazil. Electronic address:

The present study had as its objective to verify the Psidium guajava var. Pomifera L. chelating, antioxidant and cytoprotective effects against mercury and aluminum. Read More

View Article

Download full-text PDF

Source
https://linkinghub.elsevier.com/retrieve/pii/S00456535183204
Publisher Site
http://dx.doi.org/10.1016/j.chemosphere.2018.10.174DOI Listing
February 2019
5 Reads

Exposure of black-necked grebes (Podiceps nigricollis) to metal pollution during the moulting period in the Odiel Marshes, Southwest Spain.

Chemosphere 2019 Feb 24;216:774-784. Epub 2018 Oct 24.

Instituto de Investigación en Recursos Cinegéticos (IREC - CSIC, UCLM, JCCM), Ronda de Toledo 12, 13005 Ciudad Real, Spain. Electronic address:

European populations of black-necked grebes (Podiceps nigricollis) congregate every year to moult at the salt ponds of the Odiel Marshes (SW Spain). However, the Odiel Marshes are part of one of the most metal-polluted coastal estuaries in the world, which may pose risks to wildlife. We assessed the exposure of grebes to metal pollution during the critical moulting period in the Odiel Marshes and its potential to cause adverse health effects. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.chemosphere.2018.10.145DOI Listing
February 2019
1 Read

Selenium and zinc protections against metal-(loids)-induced toxicity and disease manifestations: A review.

Ecotoxicol Environ Saf 2019 Jan 29;168:146-163. Epub 2018 Oct 29.

Graduate School of Environmental Science, Hokkaido University, 060-0810 Sapporo, Japan; Faculty of Environmental Earth Science, Hokkaido University, 060-0810 Sapporo, Japan. Electronic address:

Metals are ubiquitous in the environment due to huge industrial applications in the form of different chemicals and from extensive mining activities. The frequent exposures to metals and metalloids are crucial for the human health. Trace metals are beneficial for health whereas non-essential metals are dangerous for the health and some are proven etiological factors for diseases including cancers and neurological disorders. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.ecoenv.2018.10.054DOI Listing
January 2019
1 Read
2.762 Impact Factor

23017 Relieves Mercury Toxicity in the Colon by Modulation of Oxidative Stress and Inflammation Through the Interplay of MAPK and NF-κB Signaling Cascades.

Front Microbiol 2018 12;9:2425. Epub 2018 Oct 12.

Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, College of Veterinary Medicine, Northeast Agricultural University, Harbin, China.

strains have protective effects against heavy metals while relieving oxidative stress and modulating the immune response. Mechanisms that ameliorate heavy metal toxicity and the relationship between probiotics and gut barrier protection in the process of heavy metal pathogenesis was poorly understood. In this study, 23017 (LAB, 23017), a selected probiotics strain with strong mercury binding capacities, was applied to evaluate the efficiency against mercury toxicity in a mouse model. Read More

View Article

Download full-text PDF

Source
https://www.frontiersin.org/article/10.3389/fmicb.2018.02425
Publisher Site
http://dx.doi.org/10.3389/fmicb.2018.02425DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6194351PMC
October 2018
6 Reads

Metals in sardine and anchovy from Greek coastal areas: Public health risk and nutritional benefits assessment.

Food Chem Toxicol 2018 Oct 24;123:113-124. Epub 2018 Oct 24.

Hellenic Centre for Marine Research, Institute of Oceanography, P.O. Box 2214, 71003, Heraklion, Crete, Greece. Electronic address:

Concentrations of 26 metals and elements were measured in sardine (Sardina pilchardus) and anchovy (Engraulis encrasicolus) sampled from 6 Greek coastal areas in order to assess public health risks and benefits. Nutritional benefits seem to outweigh the potential risks arising from fish metal content, since various parameters (Safety Standards, Estimated Daily Intake, Maximum Safe Consumption, Hazard Quotient, Metal Pollution Index, As Carcinogenic Risk, Mercury toxicity - Selenium benefits, Nutrient Reference Values) indicated mostly safe consumption of the studied species. Weekly consumption of 480. Read More

View Article

Download full-text PDF

Source
https://linkinghub.elsevier.com/retrieve/pii/S02786915183079
Publisher Site
http://dx.doi.org/10.1016/j.fct.2018.10.053DOI Listing
October 2018
7 Reads

Responses of Antioxidant Defense and Immune Gene Expression in Early Life Stages of Large Yellow Croaker () Under Methyl Mercury Exposure.

Front Physiol 2018 10;9:1436. Epub 2018 Oct 10.

Key Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration, Hangzhou, China.

Early life stages of marine organisms are the most sensitive stages to environment stressors including pollutants. In order to understand the toxicological effects induced by MeHg exposure on juveniles of large yellow croaker (), a toxicity test was performed wherein fish were exposed to sub-lethal concentrations of MeHg under laboratory conditions (18 ± 1°C; 26 ± 1 in salinity). After 30 days of 0-4. Read More

View Article

Download full-text PDF

Source
https://www.frontiersin.org/article/10.3389/fphys.2018.01436
Publisher Site
http://dx.doi.org/10.3389/fphys.2018.01436DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6191496PMC
October 2018
6 Reads

Effects of diphenyl diselenide diet on a model of mercury poisoning.

Mol Biol Rep 2018 Oct 23. Epub 2018 Oct 23.

Programa de Pós-Graduação em Bioquímica Toxicológica, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil.

This work investigated the preventive effect of diphenyl diselenide [(PhSe)] against the toxic effects of mercury in silver catfish (Rhamdia quelen). The animals were treated during 30 consecutive days with a (PhSe) supplemented feed (3.0 mg kg) or commercial feed. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1007/s11033-018-4433-zDOI Listing
October 2018
1 Read

Microplastics increase mercury bioconcentration in gills and bioaccumulation in the liver, and cause oxidative stress and damage in Dicentrarchus labrax juveniles.

Sci Rep 2018 Oct 23;8(1):15655. Epub 2018 Oct 23.

ICBAS - Institute of Biomedical Sciences of Abel Salazar, University of Porto, Department of Populations Study, Laboratory of Ecotoxicology & CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Research Group of Ecotoxicology, Stress Ecology and Environmental Health (ECOTOX), ICBAS - Rua de Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal.

The presence of microplastics and several other pollutants in the marine environment is of growing concern. However, the knowledge on the toxicity of mixtures containing microplastics and other contaminants to marine species is still scarce. The main goals of this study were to investigate the oxidative stress and lipid oxidative damage potentially induced by 96 h of exposure to mercury (0. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1038/s41598-018-34125-zDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6199270PMC
October 2018
1 Read

Stars in Abdomen.

J Assoc Physicians India 2018 Jan;66(1):83

Department of Medicine, Paras Hai Medical Research Institute, Patna, Bihar.

A 24-year-old male who presented to our emergency department with the history of having ingested mercury due to accidental breakage of the tip of mercury thermometer. He had 3 bouts of vomiting following ingestion; however, mercury beads were not seen in the vomitus. On admission, the patient was clinically stable, and his physical and systemic examinations were unremarkable. Read More

View Article

Download full-text PDF

Source
January 2018
4 Reads

Convergent evolution in bacteria from multiple origins under antibiotic and heavy metal stress, and endophytic conditions of host plant.

Sci Total Environ 2019 Feb 7;650(Pt 1):858-867. Epub 2018 Sep 7.

Centre for Rural Development and Technology, Indian Institute of Technology Delhi, India. Electronic address:

The focus of this work is to study the convergent evolution in bacteria from multiple origins under antibiotic and heavy metal stress, and endophytic conditions of host plant cultivated on the Yamuna river bank. Forty-one endophytic bacteria (EB) were isolated from green leafy vegetables (GLV's) and were found to be resistant to a wide range of antibiotics (AB) and heavy metals (HM) tested. Further, they showed susceptibility to Quinolones group of antibiotics, and the HM, Cadmium, Chromium, and Mercury. Read More

View Article

Download full-text PDF

Source
https://linkinghub.elsevier.com/retrieve/pii/S00489697183351
Publisher Site
http://dx.doi.org/10.1016/j.scitotenv.2018.09.078DOI Listing
February 2019
9 Reads

Selective recovery of mercury from high mercury-containing smelting wastes using an iodide solution system.

J Hazard Mater 2019 Feb 10;363:179-186. Epub 2018 Sep 10.

School of Metallurgy and Chemical Engineering, JiangXi University of Science and Technology, 86 Hongqi Road, Ganzhou 341000, China. Electronic address:

The mercury resources recovery and safe disposal of mercury-containing waste is an urgent problem. In this study, a new method using an iodide solution system was proposed to selectively recover mercury from high mercury-containing smelting wastes. The mercury leaching efficiency, yields, leaching kinetics and thermodynamics were researched. Read More

View Article

Download full-text PDF

Source
https://linkinghub.elsevier.com/retrieve/pii/S03043894183078
Publisher Site
http://dx.doi.org/10.1016/j.jhazmat.2018.09.001DOI Listing
February 2019
4 Reads

Assessing mercury pollution in Amazon River tributaries using a Bayesian Network approach.

Ecotoxicol Environ Saf 2018 Dec 1;166:354-358. Epub 2018 Oct 1.

Science and Engineering Faculty, Queensland University of Technology (QUT), GPO Box 2434, Brisbane, Qld 4001, Australia.

Mercury pollution of water bodies exerts significant human and ecosystem health impacts due to high toxicity. Relatively high levels of mercury have been detected in the Amazon River and its tributaries and associated lakes. The study employed a Bayesian Network approach to investigate the contribution from geogenic sources to mercury pollution of lakes in the Madeira River basin, which is the largest tributary of the Amazon River. Read More

View Article

Download full-text PDF

Source
https://linkinghub.elsevier.com/retrieve/pii/S01476513183097
Publisher Site
http://dx.doi.org/10.1016/j.ecoenv.2018.09.099DOI Listing
December 2018
10 Reads

Natural Phytotherapeutic Antioxidants in the Treatment of Mercury Intoxication-A Review.

Authors:
Velid Unsal

Adv Pharm Bull 2018 Aug 29;8(3):365-376. Epub 2018 Aug 29.

Heavy metals taken into the organism can make the toxic effects on the metabolism in various ways. For example, they may interact with proteins to alter and inhibit their enzymatic and structural functions. Mercury is one of the toxic elements that are widely distributed in nature. Read More

View Article

Download full-text PDF

Source
http://apb.tbzmed.ac.ir/Abstract/apb-19567
Publisher Site
http://dx.doi.org/10.15171/apb.2018.043DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6156483PMC
August 2018
63 Reads

Environmental pollution and toxic substances: Cellular apoptosis as a key parameter in a sensible model like fish.

Aquat Toxicol 2018 Nov 22;204:144-159. Epub 2018 Sep 22.

Department Ecological and Biological Sciences, University of Tuscia, Tuscia University, Viterbo, 01100, Italy. Electronic address:

The industrial wastes, sewage effluents, agricultural run-off and decomposition of biological waste may cause high environmental concentration of chemicals that can interfere with the cell cycle activating the programmed process of cells death (apoptosis). In order to provide a detailed understanding of environmental pollutants-induced apoptosis, here we reviewed the current knowledge on the interactions of environmental chemicals and programmed cell death. Metals (aluminum, arsenic, cadmium, chromium, cobalt, zinc, copper, mercury and silver) as well as other chemicals including bleached kraft pulp mill effluent (BKME), persistent organic pollutants (POPs), and pesticides (organo-phosphated, organo-chlorinated, carbamates, phyretroids and biopesticides) were evaluated in relation to apoptotic pathways, heat shock proteins and metallothioneins. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.aquatox.2018.09.010DOI Listing
November 2018
6 Reads
3.451 Impact Factor

[Mercury as a Global Pollutant and Mercury Exposure Assessment and Health Effects].

Nihon Eiseigaku Zasshi 2018 ;73(3):258-264

Department of Environmental Health Sciences, Akita University Graduate School of Medicine.

Mercury and its compounds are classified into three main groups: metallic mercury (Hg), inorganic mercury (Hg), and organic mercury (methyl mercury: CHHg, etc.). Metallic mercury is the only metal that is liquid at ambient temperature and normal pressure, which readily forms an amalgam with other metals. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1265/jjh.73.258DOI Listing
October 2018
1 Read

C. elegans Development and Activity Test detects mammalian developmental neurotoxins.

Food Chem Toxicol 2018 Nov 25;121:583-592. Epub 2018 Sep 25.

Division of Toxicology, Office of Applied Research and Safety Assessment, Center for Food Safety and Applied Nutrition, U.S.FDA, USA.

Due to the high cost and long duration of traditional testing methods for developmental neurotoxicity (DNT), only a small fraction of chemicals that humans are exposed to have been assessed for DNT activity. In order to ensure public safety, human-predictive methods for DNT detection that are faster and less resource intensive are urgently required. Using Caenorhabditis elegans, a novel worm Development and Activity test (wDAT) has been designed that uses a relatively inexpensive small-animal activity tracker and takes less than 4 days to complete. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.fct.2018.09.061DOI Listing
November 2018
1 Read

Stainless steel electrode for simultaneous stripping analysis of Cd(II), Pb(II), Cu(II) and Hg(II).

Talanta 2019 Jan 29;191:485-490. Epub 2018 Aug 29.

State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China; University of Science and Technology of China, Anhui 230026, China. Electronic address:

Traditional electrodes for stripping analysis generally have narrow electrochemical window, require the modification of electrode or the addition of additional ions. To solve these problems, stainless steel has been used as the electrode for electrochemical stripping analysis for the first time. Square wave anodic stripping voltammetry (SWASV) has been used for the detection of Cd, Pb, Cu, and Hg. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.talanta.2018.08.066DOI Listing
January 2019
1 Read
3.540 Impact Factor