Abstract:
:The health of a large rural population in the southern Pampa (Argentina) is at risk owing to newly detected areas where As-groundwater exceeds 0.01 mg/L standard (WHO (1995) Guidelines for drinking water quality, 2nd edition. pp 43-45). Currently, devitrification of volcanic glass is invoked to interpret the origin of arsenic in the aquifers hosted in a sequence of pampean loess (Plio-Pleistocene) juxtaposed with postpampean loess (Holocene). Our data suggest that arsenic is not specifically associated with volcanic glass and that other minerals contribute to As-release into groundwater. The goals were (1) to understand As-groundwater spatial variability, (2) to explore soils/sediments/water relationships and to identify the probable As-provenance. Comparable As concentrations of the light and the heavy sand fractions suggest that though detrital glass is a major light constituent, other existing primary minerals are As-bearers that contribute to As-release into groundwater. Grouping of materials according to their As-content indicated spatial variability in the sedimentary distribution pattern leading to differences in the frequencies of occurrence of As-bearing minerals. Phreatic waters were Ca + Mg bicarbonate and devoid of As in the intake areas (Ventania System) and Na-carbonate but As-rich towards the discharge (Atlantic coast and local depressions). As-groundwater reflects a patchy distribution within the pampean landscape. A correspondence between As-high groundwater, EC >1 dSm, CO(3)H(-), alkaline pH and a longer water residence time do exist triggering As extraction from the loess sand fraction and desorption from charged fine particles which lead to As-toxicity towards groundwater discharge.
journal_name
Environ Toxicoljournal_title
Environmental toxicologyauthors
Blanco Mdel C,Paoloni JD,Morrás HJ,Fiorentino CE,Sequeira Mdoi
10.1002/tox.20219subject
Has Abstractpub_date
2006-12-01 00:00:00pages
561-74issue
6eissn
1520-4081issn
1522-7278journal_volume
21pub_type
杂志文章abstract::Endotoxins exist anywhere including in water pools, dust, humidifier systems, and machining fluids. The major causal factor is endotoxins in many serious diseases, such as fever, sepsis, multi-organ failure, meningococcemia, and severe morbidities like neurologic disability, or hearing loss. Endotoxins are also called...
journal_title:Environmental toxicology
pub_type: 杂志文章
doi:10.1002/tox.22033
更新日期:2016-02-01 00:00:00
abstract::Nonsteroidal anti-inflammatory drugs (NSAIDs) are widely used therapeutic agents; however, their pharmacological actions raise concerns about potential risks to the reproductive health of aquatic vertebrates. In the present study, a medaka ovulation assay was applied as an in vitro model to evaluate NSAID-induced anti...
journal_title:Environmental toxicology
pub_type: 杂志文章
doi:10.1002/tox.22173
更新日期:2016-12-01 00:00:00
abstract::Females are born with a finite number of oocyte-containing follicles and ovary damage results in reduced fertility. Cadmium accumulates in the reproductive system, damaging it, and the cigarette smoke is a potential exposure route. Natural therapies are relevant to health benefits and disease prevention. This study ve...
journal_title:Environmental toxicology
pub_type: 杂志文章
doi:10.1002/tox.22225
更新日期:2017-01-01 00:00:00
abstract::Casticin, a polymethoxyflavone, is one of the major active components obtained from Fructus viticis, which have been shown to have anticancer activities including induce cell apoptosis in human cancer cells. The aim of this study was to investigate the molecular mechanisms by which casticin inhibits cell migration and...
journal_title:Environmental toxicology
pub_type: 杂志文章
doi:10.1002/tox.22417
更新日期:2017-09-01 00:00:00
abstract::Punta Lara is located in the Río de la Plata estuary near industrial areas contaminated mainly by organic pollutants. In this work, the responses and status of hepatic biomarkers were studied in juvenile carp (Cyprinus carpio) by means of a 21-day field exposure in cages and collection of juvenile native fish (Leporin...
journal_title:Environmental toxicology
pub_type: 杂志文章
doi:10.1002/tox.21823
更新日期:2014-08-01 00:00:00
abstract::Antioxidative enzymes (superoxide dismutase (SOD), peroxidase (POD), catalase (CAT), ascorbate peroxidase (APX)), as well as lipid peroxidation and proline were studied in moss Brachythecium piligerum Card. collected from different sites in Shanghai, China, to validate the physiological parameters as biomarkers of atm...
journal_title:Environmental toxicology
pub_type: 杂志文章
doi:10.1002/tox.20571
更新日期:2011-10-01 00:00:00
abstract::Effects of perchlorate on sodium-iodide symporter (NIS) and pendrin gene expression in deer mice kidney and stomach were investigated. This was accomplished by isolating a partial cDNA sequence of deer mice NIS gene of 425 bps, and quantitatively analyzing NIS mRNA expression in various deer mouse tissues. The highest...
journal_title:Environmental toxicology
pub_type: 杂志文章
doi:10.1002/tox.20271
更新日期:2007-08-01 00:00:00
abstract::The phthalate plasticizer, di(2-ethyl-hexyl) phthalate (DEHP), and its derived metabolites are common anthropogenic environmental toxins, which are known to act as endocrine disruptors. Numerous studies have associated DEHP with disruption of sex hormones, abnormal development of reproductive organs, allergies, and in...
journal_title:Environmental toxicology
pub_type: 杂志文章
doi:10.1002/tox.22820
更新日期:2019-11-01 00:00:00
abstract::The present study was designed to understand the effects of sublethal concentrations of dichlorvos (DIC) on hematological constituent [red blood corpuscles, white blood corpuscles (WBC), mean cell volume, mean corpuscular hemoglobin, mean corpuscular hemoglobin concentration, platelet counts, hemoglobin and hematocrit...
journal_title:Environmental toxicology
pub_type: 杂志文章
doi:10.1002/tox.20390
更新日期:2009-04-01 00:00:00
abstract::The genotoxic effects of a particular mixture of acetamiprid (Acm, neonicotinoid insecticide) and alpha-cypermethrin (alpha-cyp, pyrethroid insecticide) on human peripheral lymphocytes were examined in vitro by chromosomal aberrations (CAs), sister chromatid exchange (SCE), and micronucleus (MN) tests. The human perip...
journal_title:Environmental toxicology
pub_type: 杂志文章
doi:10.1002/tox.20485
更新日期:2010-04-01 00:00:00
abstract::In recent years, the protective effect of hydrogensulfide donor sodium hydrosulfide(NaHS) on multiple organs has been widely reported. The study aimed to explorethe effect of commonly used concentration of NaHS on theliver and its potential damage mechanism. Rats divided into 4 groups: control, NaHS I (1 mg/kg), II (3...
journal_title:Environmental toxicology
pub_type: 杂志文章
doi:10.1002/tox.22868
更新日期:2020-03-01 00:00:00
abstract::Global use of azole fungicides is expected to increase over the next several years. Triticonazole is a triazole fungicide that is used for turf protection, residential, and other commercial applications. As such, it can enter local rural and urban water systems via run-off and rain events. Early life stages of aquatic...
journal_title:Environmental toxicology
pub_type: 杂志文章
doi:10.1002/tox.22862
更新日期:2020-02-01 00:00:00
abstract::The aim of this study was to examine the occurrence of endocrine disruption close to sewage treatment plant effluent discharges along the Finnish Baltic Sea coast using a set of reproductive biomarkers present in adult three-spined stickleback (Gasterosteus aculeatus). Possible variation and sensitivity of the biomark...
journal_title:Environmental toxicology
pub_type: 杂志文章
doi:10.1002/tox.20715
更新日期:2013-04-01 00:00:00
abstract::Being one of the notorious weed P. hysterophorus has invaded almost every part India and is the lead cause of skin allergies and severe dermatitis among farmers and rural population. It is an invasive obnoxious weed capable of surviving extreme environmental conditions and various parts of this plant are reported to c...
journal_title:Environmental toxicology
pub_type: 杂志文章
doi:10.1002/tox.22989
更新日期:2020-11-01 00:00:00
abstract::The aim of this study was to evaluate whether the enzyme-linked immunosorbent assay (ELISA) anti-Adda technique could be used to monitor free microcystins (MCs) in biological samples from fish naturally exposed to toxic cyanobacteria by using receiver operating characteristic (ROC) curve software to establish an optim...
journal_title:Environmental toxicology
pub_type: 杂志文章
doi:10.1002/tox.20528
更新日期:2011-02-01 00:00:00
abstract::Environmental stress factors may be responsible for biological changes in living species that are able to overcome deleterious effects depending on their detoxifying capacities. Defense systems present in every living species are involved in elimination of reactive chemical species of endogenous or exogenous origin, n...
journal_title:Environmental toxicology
pub_type: 杂志文章
doi:10.1002/tox.20024
更新日期:2004-08-01 00:00:00
abstract::Sulfur dioxide (SO2 ) is a ubiquitous air pollutant. The previous studies have documented the adverse effects of SO2 on nervous system health, suggesting that acutely SO2 inhalation at high concentration may be associated with neurotoxicity and increase risk of hospitalization and mortality of many brain disorders. Ho...
journal_title:Environmental toxicology
pub_type: 杂志文章
doi:10.1002/tox.22093
更新日期:2016-07-01 00:00:00
abstract::Throughout life, the human eye is continuously exposed to sunlight and artificial lighting. Ambient light exposure can lead to visual impairment and transient or permanent blindness. To mimic benign light stress conditions, Mus musculus eyes were exposed to low-energy UVB radiation, ensuring no severe morphological ch...
journal_title:Environmental toxicology
pub_type: 杂志文章
doi:10.1002/tox.22494
更新日期:2018-01-01 00:00:00
abstract::Renal cell carcinoma (RCC) is the most common type of kidney cancer in adults and the major cause of mortality in urological cancer. Most patients with RCC are asymptomatic until the disease is advanced and unresectable. In this situation, systemic therapy with immunotherapy or molecularly targeted therapy agents play...
journal_title:Environmental toxicology
pub_type: 杂志文章
doi:10.1002/tox.22411
更新日期:2017-07-01 00:00:00
abstract::Acute severe carbon monoxide (CO) poisoning induces hypoxia that leads to cardiovascular and nervous systems disturbances. Different complex mechanisms lead to CO neurotoxicity including lipid peroxidation, inflammatory and immune-mediated reactions, myelin degeneration and finally neuronal apoptosis and necrosis. Gra...
journal_title:Environmental toxicology
pub_type: 杂志文章
doi:10.1002/tox.22210
更新日期:2017-01-01 00:00:00
abstract::Chlorpyrifos (CPF) is one of the most widely used organophosphorus, which has spurred renewed interest. This study was conducted to investigate the protective effect of ziziphora tenuior extract against CPF-induced liver and lung toxicity. This study conducted 8-week rat sub-chronic toxicity study and then the effect ...
journal_title:Environmental toxicology
pub_type: 杂志文章
doi:10.1002/tox.22432
更新日期:2017-09-01 00:00:00
abstract::In this study, toxic effects of the cypermethrin in Allium cepa L. cells were investigated. For this aim, we investigated the changes in pigment contents, antioxidant enzymes, mitotic index and chromosomal abnormalities as indicators of toxicity. The seeds were treated with different doses (1.5, 3.0, 6.0 ppm) of cyper...
journal_title:Environmental toxicology
pub_type: 杂志文章
doi:10.1002/tox.20681
更新日期:2012-10-01 00:00:00
abstract::The roles of long noncoding RNA (lncRNA) MACC1-AS1 have been revealed in various tumors. This work aims to explore the roles of lncRNA MACC1-AS1 in the stemness of nonsmall cell lung cancer (NSCLC) cells and the underlying mechanism. We showed that overexpression of MACC1-AS1 enhanced the stemness of NSCLC cells, whic...
journal_title:Environmental toxicology
pub_type: 杂志文章
doi:10.1002/tox.22936
更新日期:2020-09-01 00:00:00
abstract::Numerous studies have shown that rutin has anticancer effects. We have previously reported that rutin induced cell cycle arrest and apoptosis in murine leukemia WEHI-3 cells in vitro and in vivo. However, there are no data showing that rutin inhibits human leukemia HL-60 cells in vivo in a murine xenograft animal mode...
journal_title:Environmental toxicology
pub_type: 杂志文章
doi:10.1002/tox.20662
更新日期:2012-08-01 00:00:00
abstract::An unexpectedly high frequency of skeletal deformations in brown trout has previously been observed in the brook Vallkärrabäcken in southern Sweden. Environmental pollutants from storm water and leachate from an old landfill have been suggested as responsible for the observed deformations. Biomarkers in farmed rainbow...
journal_title:Environmental toxicology
pub_type: 杂志文章
doi:10.1002/tox.20559
更新日期:2011-06-01 00:00:00
abstract::Colorectal cancer (CRC) is one of the most common cancers and causes of cancer-related death. There are several first-line chemotherapeutic drugs used to treat CRC. Oxaliplatin (OXA) is an alkylating cytotoxic agent that is usually combined with other chemotherapeutic drugs to treat stage II and stage III CRC. However...
journal_title:Environmental toxicology
pub_type: 杂志文章
doi:10.1002/tox.22544
更新日期:2018-05-01 00:00:00
abstract::8-Hydroxy-2'-deoxyguanosine (8-OHdG) is the most common biomarker of oxidative DNA damage, it is formed by chemical carcinogens and can be measured in any species. Perfluorooctanoic acid (PFOA) and perfluorononanoic acid (PFNA) are suspected genotoxic carcinogens through induction of reactive oxygen species that are r...
journal_title:Environmental toxicology
pub_type: 杂志文章
doi:10.1002/tox.22034
更新日期:2016-02-01 00:00:00
abstract::Deguelin, a naturally occurring rotenoid of the flavonoid family, is known to be an Akt inhibitor, to have chemopreventive activities and anti-tumor effect on several cancers. In this study, investigation to elucidate the effect of deguelin on apoptotic pathways in human lung cancer cells and on the anti-tumor effect ...
journal_title:Environmental toxicology
pub_type: 杂志文章
doi:10.1002/tox.22214
更新日期:2017-01-01 00:00:00
abstract::Particulate matter the environmental toxicant, with a diameter less than or equal to 2.5 μm (PM2.5 ) is a common cause of several respiratory diseases. In recent years, several studies have suggested that PM2.5 can influence diverse diseases, such as respiratory diseases, cardiovascular diseases, metabolic diseases, d...
journal_title:Environmental toxicology
pub_type: 杂志文章
doi:10.1002/tox.22591
更新日期:2018-11-01 00:00:00
abstract::The acute toxicity of cylindrospermopsin (CYN) has been established in rodents, based on diverse intraperitoneal an oral exposure studies and more recently in fish. But no data have been reported in fish after subchronic exposure to cyanobacterial cells containing this cyanotoxin, so far. In this work, tilapia (Oreoch...
journal_title:Environmental toxicology
pub_type: 杂志文章
doi:10.1002/tox.21904
更新日期:2015-03-01 00:00:00