keyword
MENU ▼
Read by QxMD icon Read
search

Arsenic exposure

keyword
https://www.readbyqxmd.com/read/28731302/lead-ii-binding-in-metallothioneins
#1
Daisy L Wong, Maureen E Merrifield-MacRae, Martin J Stillman
Heavy metal exposure has long been associated with metallothionein (MT) regulation and its functions. MT is a ubiquitous, cysteine-rich protein that is involved in homeostatic metal response for the essential metals zinc and copper, as well as detoxification of heavy metals; the most commonly proposed being cadmium. MT binds in vivo to a number of metals in addition to zinc, cadmium and copper, such as bismuth. In vitro, metallation with a wide range of metals (especially mercury, arsenic, and lead) has been reported using a variety of analytical methods...
April 10, 2017: Metal Ions in Life Sciences
https://www.readbyqxmd.com/read/28731282/altered-signaling-associated-with-chronic-arsenic-exposure-in-human-skin-keratinocytes
#2
Sartaj Ahmad Mir, Santosh Renuse, Gajanan Sathe, Aafaque Ahmad Khan, Arun H Patil, Vishalakshi Nanjappa, Firdous Ahmad Bhat, T S Keshava Prasad, Ashok K Giri, Aditi Chatterjee, Harsha Gowda
Modulation of signaling pathways upon chronic arsenic exposure remains poorly studied. Here we carried out SILAC-based quantitative phosphoproteomics analysis to dissect the signaling induced upon chronic arsenic exposure in human skin keratinocyte cell line, HaCaT. We identified 4,171 unique phosphosites derived from 2,000 proteins. We observed differential phosphorylation of 406 phosphosites (2-fold) corresponding to 305 proteins. Several pathways involved in cytoskeleton maintenance and organization were found to be significantly enriched (p<0...
July 21, 2017: Proteomics. Clinical Applications
https://www.readbyqxmd.com/read/28728140/effects-of-inorganic-arsenic-methylated-arsenicals-and-arsenobetaine-on-atherosclerosis-in-the-mouse-model-and-the-role-of-as3mt-mediated-methylation
#3
Luis Fernando Negro Silva, Maryse Lemaire, Catherine A Lemarié, Dany Plourde, Alicia M Bolt, Christopher Chiavatti, D Scott Bohle, Vesna Slavkovich, Joseph H Graziano, Stéphanie Lehoux, Koren K Mann
BACKGROUND: Arsenic is metabolized through a series of oxidative methylation reactions by arsenic (3) methyltransferase (As3MT) to yield methylated intermediates. Although arsenic exposure is known to increase the risk of atherosclerosis, the contribution of arsenic methylation and As3MT remains undefined. OBJECTIVES: Our objective was to define whether methylated arsenic intermediates were proatherogenic and whether arsenic biotransformation by As3MT was required for arsenic-enhanced atherosclerosis...
July 5, 2017: Environmental Health Perspectives
https://www.readbyqxmd.com/read/28728119/nf-%C3%AE%C2%BAb-mediated-inflammation-correlates-with-calcium-overload-under-arsenic-trioxide-induced-myocardial-damage-in-gallus-gallus
#4
Siwen Li, Yu Wang, Hongjing Zhao, Ying He, Jinglun Li, Guangshun Jiang, Mingwei Xing
Arsenic is a known environmental pollutant and highly hazardous toxin to human health. Due to the biological accumulation, arsenic produces a variety of cardiovascular diseases. However, the exact mechanism is still unclear. Here, our objective was to evaluate myocardial damage and determine the potential mechanism under arsenic exposure in chickens. Arsenic trioxide (As2O3) (1.25 mg/kg BW, corresponding 15 mg/kg feed) was administered as basal diet to male Hy-line chickens (one-day-old) for 4, 8 and 12 weeks...
July 14, 2017: Chemosphere
https://www.readbyqxmd.com/read/28727988/environmental-exposures-and-pediatric-kidney-function-and-disease-a-systematic-review
#5
REVIEW
Laura Y Zheng, Alison P Sanders, Jeffrey M Saland, Robert O Wright, Manish Arora
BACKGROUND: Environmental chemical exposures have been implicated in pediatric kidney disease. No appraisal of the available evidence has been conducted on this topic. METHODS: We performed a systematic review of the epidemiologic studies that assessed association of environmental exposures with measures of kidney function and disease in pediatric populations. The search period went through July 2016. RESULTS: We found 50 studies that met the search criteria and were included in this systematic review...
July 17, 2017: Environmental Research
https://www.readbyqxmd.com/read/28726320/assessing-neurodevelopmental-effects-of-arsenolipids-in-pre-differentiated-human-neurons
#6
Barbara Witt, Franziska Ebert, Sören Meyer, Kevin A Francesconi, Tanja Schwerdtle
SCOPE: In the general population exposure to arsenic occurs mainly via diet. Highest arsenic concentrations are found in seafood, where arsenic is present predominantly in its organic forms including arsenolipids. Since recent studies have provided evidence that arsenolipids could reach the brain of an organism and exert toxicity in fully differentiated human neurons, this work aims to assess the neurodevelopmental toxicity of arsenolipids. METHODS AND RESULTS: Neurodevelopmental effects of three arsenic-containing hydrocarbons (AsHC), two arsenic-containing fatty acids (AsFA), arsenite and dimethylarsinic acid (DMA(V) ) were characterized in pre-differentiated human neurons...
July 20, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28726072/concentration-of-thyrotropic-hormone-in-persons-occupationally-exposed-to-lead-cadmium-and-arsenic
#7
Marta Jurdziak, Paweł Gać, Małgorzata Poręba, Anna Szymańska-Chabowska, Grzegorz Mazur, Rafał Poręba
Thyroid hormones are essential for body homeostasis. The scientific literature contains restricted proofs for effects of environmental chemical factors on thyroid function. The present study aimed at evaluating the relationship between toxicological parameters and concentration of thyrotropic hormone in persons occupationally exposed to lead, cadmium and arsenic. The studies were conducted on 102 consecutive workers occupationally exposed to lead, cadmium and arsenic (mean age 45.08 ± 9.87 years). The estimated parameters characterizing occupational exposure to metals included blood cadmium concentration (Cd-B), blood lead concentration (Pb-B), blood zinc protoporphyrin concentration (ZnPP) and urine arsenic concentration (As-U)...
July 19, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28720099/association-between-genome-wide-copy-number-variation-and-arsenic-induced-skin-lesions-a-prospective-study
#8
Muhammad G Kibriya, Farzana Jasmine, Faruque Parvez, Maria Argos, Shantanu Roy, Rachelle Paul-Brutus, Tariqul Islam, Alauddin Ahmed, Muhammad Rakibuz-Zaman, Justin Shinkle, Vesna Slavkovich, Joseph H Graziano, Habibul Ahsan
BACKGROUND: Exposure to arsenic in drinking water is a global health problem and arsenic-induced skin lesions are hallmark of chronic arsenic toxicity. We and others have reported germline genetic variations as risk factors for such skin lesions. The role of copy number variation (CNV) in the germline DNA in this regard is unknown. METHODS: From a large prospectively followed-up cohort, exposed to arsenic, we randomly selected 2171 subjects without arsenic-induced skin lesions at enrollment and genotyped their whole blood DNA samples on Illumina Cyto12v2...
July 18, 2017: Environmental Health: a Global Access Science Source
https://www.readbyqxmd.com/read/28714172/a-study-of-dna-damage-in-buccal-cells-of-consumers-of-well-and-or-tap-water-using-the-comet-assay-assessment-of-occupational-exposure-to-genotoxicants
#9
Celia Vazquez Boucard, Larisa Lee-Cruz, Laurence Mercier, Martín Ramírez Orozco, Vania Serrano Pinto, Gerardo Anguiano, Linette Cazares, Daniel Díaz
Because of concerns that natural aquifers in the region of Todos Santos (Baja California Sur, Mexico) might be contaminated by organochlorine pesticides and heavy metals, a case-control study was conducted among consumers and non-consumers of well- and/or tap-water to determine risks to human health. This study was based on a genotoxic evaluation of buccal cells using the Comet assay technique. Levels of DNA damage in the consumers group were significantly higher than those of the control group. However, occupational exposure to genotoxicants showed to be the critical factor rather than water consumption...
July 17, 2017: Environmental and Molecular Mutagenesis
https://www.readbyqxmd.com/read/28712085/long-term-spatiotemporal-trends-and-health-risk-assessment-of-oyster-arsenic-levels-in-coastal-waters-of-northern-south-china-sea
#10
Xuefeng Wang, Lifei Wang, Xiaoping Jia, Donald A Jackson
Long-term spatiotemporal trends and health risk assessment of oyster arsenic levels in the coastal waters of northern South China Sea were investigated in order to help improve the quality and safety control and sustainable aquaculture for mollusks in China. Cultured oysters (Crassostrea rivularis) collected from the waters of 23 bays, harbors, and estuaries along the coast of northern South China Sea from 1989 to 2012 were examined for spatial patterns and long-term temporal trends of oyster arsenic levels...
July 15, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28709971/epigenetic-mechanisms-underlying-the-toxic-effects-associated-with-arsenic-exposure-and-the-development-of-diabetes
#11
REVIEW
Fazlullah Khan, Saeideh Momtaz, Kamal Niaz, Fatima Ismail Hassan, Mohammad Abdollahi
BACKGROUND: Exposure to inorganic arsenic (iAs) is a major threat to the human health worldwide. The consumption of arsenic in drinking water and other food products is associated with the risk of development of type-2 diabetes mellitus (T2DM). The available experimental evidence indicates that epigenetic alterations may play an important role in the development of diseases that are linked with exposure to environmental toxicants. iAs seems to be associated with the epigenetic modifications such as alterations in DNA methylation, histone modifications, and micro RNA (miRNA) abundance...
July 11, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28704693/investigation-of-arsenic-accumulation-and-biochemical-response-of-in-vitro-developed-vetiveria-zizanoides-plants
#12
Shraddha Singh, Suvarna Sounderajan, Kiran Kumar, D P Fulzele
Vetiver grass (Vetiveria zizanoides L. Nash) is found to be a suitable candidate for the phytoremediation of heavy metals. An investigation of arsenic (As) accumulation, translocation and tolerance was conducted in V. zizanoides plantlets upon exposure to different concentrations of arsenic (10, 50, 100 and 200µM) for 7 and 14 d. V. zizanoides plants were found effective in remediation of As, maximum being at 200µM after 14 d of exposure. The results of TBARS and photosynthetic pigments demonstrated that plants did not experience significant toxicity at all the concentrations of As after 7 days, however an increase in their level was found after 14 d...
July 10, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28702205/association-of-arsenobetaine-with-beta-cell-function-assessed-by-homeostasis-model-assessment-homa-in-nondiabetic-koreans-data-from-the-fourth-korea-national-health-and-nutrition-examination-survey-knhanes-2008-2009
#13
Kiook Baek, Namhoon Lee, Insung Chung
BACKGROUND: Arsenic is known as an endocrine disruptor that people are exposed to through various sources such as drinking water and indigestion of marine products. Although some epidemiological and animal studies have reported a correlation between arsenic exposure and diabetes development, there are limited studies regarding the toxic effects of organic arsenic including arsenobetaine on the human body. Here, we analyzed the association between urine arsenobetaine and the homeostasis model assessment of β-cell function (HOMA-β), which is an index for predicting diabetes development and reflecting the function of pancreatic β-cells...
2017: Annals of Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/28702037/transcriptomic-response-of-purple-willow-salix-purpurea-to-arsenic-stress
#14
Aymeric Yanitch, Nicholas J B Brereton, Emmanuel Gonzalez, Michel Labrecque, Simon Joly, Frederic E Pitre
Arsenic (As) is a toxic element for plants and one of the most common anthropogenic pollutants found at contaminated sites. Despite its severe effects on plant metabolism, several species can accumulate substantial amounts of arsenic and endure the associated stress. However, the genetic mechanisms involved in arsenic tolerance remains obscure in many model plant species used for land decontamination (phytoremediation), including willows. The present study assesses the potential of Salix purpurea cv. 'Fish Creek' for arsenic phytoextraction and reveals the genetic responses behind arsenic tolerance, phytoextraction and metabolism...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28697391/nutrients-in-one-carbon-metabolism-and-urinary-arsenic-methylation-in-the-national-health-and-nutrition-examination-survey-nhanes-2003-2004
#15
Margaret Kurzius-Spencer, Vanessa da Silva, Cynthia A Thomson, Vern Hartz, Chiu-Hsieh Hsu, Jefferey L Burgess, Mary Kay O'Rourke, Robin B Harris
Exposure to inorganic arsenic (inAs), a potent toxicant, occurs primarily through ingestion of food and water. The efficiency with which it is methylated to mono and dimethyl arsenicals (MMA and DMA) affects toxicity. Folate, vitamins B12 and B6 are required for 1C metabolism, and studies have found that higher levels of these nutrients increase methylation capacity and are associated with protection against adverse health effects from inAs, especially in undernourished populations. Our aim was to determine whether 1C-related nutrients are associated with greater inAs methylation capacity in a general population sample with overall adequate nutrition and low levels of As exposure...
July 8, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28694614/environmental-arsenic-contamination-and-its-effect-on-intelligence-quotient-of-school-children-in-a-historic-gold-mining-area-hutti-north-karnataka-india-a-pilot-study
#16
R Manju, Amitha M Hegde, Paul Parlees, Anisha Keshan
CONTEXT: Arsenic is a rare crystal element that naturally occurs in all environmental media. A combination of regional and site-specific biogeochemical and hydrological factors governs its dispersion in the environment. It has far reaching consequences on human health. Exposure to arsenic in drinking water has been associated with a decline in intellectual function in children. AIM: The aim of this study is to assess the relationship between exposure to arsenic by drinking water and children's intelligence in Karnataka state, India...
July 2017: Journal of Neurosciences in Rural Practice
https://www.readbyqxmd.com/read/28692928/associations-between-prenatal-arsenic-exposure-with-adverse-pregnancy-outcome-and-child-mortality
#17
Yu-Hsuan Shih, Tariqul Islam, Samar Kumar Hore, Golam Sarwar, Mohammad Hasan Shahriar, Mohammad Yunus, Joseph H Graziano, Judith Harjes, John A Baron, Faruque Parvez, Habibul Ahsan, Maria Argos
BACKGROUND: Chronic arsenic exposure is a public health concern in many parts of the world, with elevated concentrations in groundwater posing a threat to millions of people. Arsenic is associated with various cancers and an array of chronic diseases; however, the relationship with adverse pregnancy outcomes and child mortality is less established. OBJECTIVES: We evaluated associations between individual-level prenatal arsenic exposure with adverse pregnancy outcomes and child mortality in a pregnancy study among 498 women nested in a larger population-based cohort in rural Bangladesh...
July 7, 2017: Environmental Research
https://www.readbyqxmd.com/read/28688901/microrna-155-regulates-arsenite-induced-malignant-transformation-by-targeting-nrf2-mediated-oxidative-damage-in-human-bronchial-epithelial-cells
#18
Chengzhi Chen, Xuejun Jiang, Shiyan Gu, Zunzhen Zhang
Arsenite is a well-documented human lung carcinogen but the detailed mechanisms of carcinogenesis remain unclear. In this study, human bronchial epithelial (16-HBE) cells were continuously exposed to 2.5μM arsenite for about 13 weeks to induce the phenotypes of malignant transformation. Our results showed that Nrf2 expression was gradually decreased whereas no significant change was observed on NF-κB activation with increased time of arsenite exposure. To test the roles of Nrf2-meidtaed oxidative damage in the arsenite-induced malignant transformation, we compared the levels of cGMP, PKG and oxidative damage-related indicators between arsenic-transformed cells and control cells...
July 6, 2017: Toxicology Letters
https://www.readbyqxmd.com/read/28688358/trace-element-concentrations-in-feathers-and-blood-of-northern-goshawk-accipiter-gentilis-nestlings-from-norway-and-spain
#19
Kevin J Dolan, Tomasz M Ciesielski, Syverin Lierhagen, Igor Eulaers, Torgeir Nygård, Trond V Johnsen, Pilar Gómez-Ramírez, Antonio J García-Fernández, Jan O Bustnes, Manuel E Ortiz-Santaliestra, Veerle L B Jaspers
Information on trace element pollution in the terrestrial environment and its biota is limited compared to the marine environment. In the present study, we collected body feathers and blood of 37 Northern goshawk (Accipiter gentilis) nestlings from Tromsø (northern Norway), Trondheim (central Norway), and Murcia (southeastern Spain) to study regional exposure, hypothesizing the potential health risks of metals and other trace elements. Blood and body feathers were analyzed by a high resolution inductively coupled plasma mass spectrometer (HR-ICP-MS) for aluminum (Al), nickel (Ni), copper (Cu), zinc (Zn), arsenic (As), selenium (Se), cadmium (Cd), mercury (Hg) and lead (Pb)...
July 5, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28686469/dietary-compounds-as-modulators-of-metals-and-metalloids-toxicity
#20
Carlos Jadán-Piedra, Gabriela Matuoka Chiocchetti, María Jesús Clemente, Dinoraz Vélez, Vicenta Devesa
A large part of the population is exposed to metals and metalloids through the diet. Most of the in vivo studies on its toxicokinetics and toxicity are conducted by means of exposure through drinking water or by intragastric or intraperitoneal administration of aqueous standards, and therefore they do not consider the effect of the food matrix on the exposure. Numerous studies show that some components of the diet can modulate the toxicity of these food contaminants, reducing their effect on a systemic level...
July 7, 2017: Critical Reviews in Food Science and Nutrition
keyword
keyword
27023
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"