Abstract:
:In this study, 162 samples were analysed for monomer styrene content with using high performance liquid chromatography (HPLC) method in hot tea, milk, cocoa milk. The monomer styrene content, expressed in microg/l of drink and the level of migration of styrene monomer were varied from 0.61 to 8.15 for hot tea, from 0.65 to 8.30 for hot milk, from 0.71 to 8.65 for hot cocoa milk in GPPS (general purpose polystyrene), from 0.48 to 6.85 for hot tea, from 0.61 to 7.65 for hot milk, from 0.72 to 7.78 for hot cocoa milk in HIPS (high performance polystyrene) cups in different temperatures and times. The estimated limit of detection of (HPLC) method for all samples was 0.001 mg/kg. There is linear regression for styrene monomer from 1 to 10 ng/ml. Several samples spiked with a known amount of styrene monomer. The results of the recovery in study for styrene monomer were determinate to be mean, 96.1 +/- 1.92 to 99.7 +/- 1.15%. The results of this study indicate that styrene monomer from polystyrene disposable into hot and fat drinks was migrated and this migration was highly dependent on fat content and temperature of drinks. The derived concentration of styrene monomer in this study was above the EPA (Environmental protection agency) recommended level, especially in MCLG (Maximum contaminant level goal) standard. More study is needed to further elucidate this finding.
journal_name
Toxicol Mech Methodsjournal_title
Toxicology mechanisms and methodsauthors
Khaksar MR,Ghazi-Khansari Mdoi
10.1080/15376510802510299subject
Has Abstractpub_date
2009-03-01 00:00:00pages
257-61issue
3eissn
1537-6516issn
1537-6524journal_volume
19pub_type
杂志文章abstract::Crotonaldehyde is a hazardous pollutant present in cigarette smoke and automobile exhausts that is generated by lipid peroxidation, and harmful to reproductive organs. Although we are often exposed to low doses of crotonaldehyde daily, its adverse effects on the reproductive organs have not been fully elucidated. To e...
journal_title:Toxicology mechanisms and methods
pub_type: 杂志文章
doi:10.1080/15376516.2019.1646369
更新日期:2020-01-01 00:00:00
abstract:CONTEXT:Although the liver is the primary target organ in acetaminophen (APAP) toxicity, other organs are affected. Previous data suggested that chronic APAP abuse can be ototoxic and the mechanism involves APAP-induced oxidative stress and reactive metabolite (N-acetyl-p-benzoquinone imine, NAPQI)-induced endoplasmic ...
journal_title:Toxicology mechanisms and methods
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doi:10.3109/15376516.2015.1122136
更新日期:2016-02-01 00:00:00
abstract::Silver and gold nanoparticles (Ag-AuNPs) are currently some of the most manufactured nanomaterials. Accordingly, the hazards associated with human exposure to Ag-AuNPs should be investigated to facilitate the risk assessment process. In particular, because pulmonary exposure to Ag-AuNPs occurs during handling of these...
journal_title:Toxicology mechanisms and methods
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abstract::ABSTRACT This paper presents the results from an evaluation of the noncommercial, (quantitative) structure-activity relationship ([Q]SAR) models for the prediction of mutagenicity and carcinogenicity, carried out in a collaboration between the European Chemicals Bureau Group on Computational Toxicology and the Italian...
journal_title:Toxicology mechanisms and methods
pub_type: 杂志文章
doi:10.1080/15376510701857056
更新日期:2008-01-01 00:00:00
abstract::The present study was designed to investigate the effects of aqueous Azadirchta Indica leaf extract (AAILE) on serum glycoprotein contents and tumor incidence rate in colon of rats subjected to Dimethylhydrazine (DMH) treatment. Forty rats were divided equally and randomly into four groups viz., Group I (normal contro...
journal_title:Toxicology mechanisms and methods
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doi:10.1080/15376510802646523
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abstract::Allergic rhinitis (also known as hay fever) is the most commonly occurring immunological disorder, and it affects 40 million men, women, and children in the United States. Symptomatically, it is an inflammation and irritation of the mucous membranes that line the nose. Allergy is defined as a state of hypersensitivity...
journal_title:Toxicology mechanisms and methods
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doi:10.1080/713857188
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abstract::Up to now, the ability of target cells to activate protein kinase C (PKC) and protein kinase D (PKD) (which is often a downstream target of PKC) has not been examined in natural killer (NK) lymphocytes. Here we examined whether exposure of human NK cells to lysis sensitive tumor cells activated PKC and PKD. The result...
journal_title:Toxicology mechanisms and methods
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abstract::Timolol is a medication used widely to treat glaucoma. Regarding Ca2+ signaling, timolol was shown to modulate Ca2+-related physiology in various cell types, however, the effect of timolol on Ca2+ homeostasis and cell viability has not been explored in human prostate cancer cells. The aim of this study was to explore ...
journal_title:Toxicology mechanisms and methods
pub_type: 杂志文章
doi:10.1080/15376516.2018.1540024
更新日期:2019-02-01 00:00:00
abstract::Zinc (Zn) is one of the essential trace elements and has numerous physiological functions. Zn acts as an antioxidant and also as a part of other antioxidant related proteins, such as metallothionein (MT) and Zn-copper superoxide dismutase. Zn deficiency often occurs in patients with diabetes. Therefore, the effect of ...
journal_title:Toxicology mechanisms and methods
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更新日期:2013-01-01 00:00:00
abstract::The specific properties of silver nanoparticles (AgNPs), such as antimicrobial activity and electrical conductivity, allow them to be used in many fields. However, their expanding application is also raising health, environmental and safety concerns. Previous in vivo AgNP toxicity studies have indicated a gender-diffe...
journal_title:Toxicology mechanisms and methods
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abstract::Clinical use of doxorubicin continues to be challenged by its undesirable systematic toxicity, caused mainly by oxidative stress. The aim of this study was to investigate the effectiveness of fullerenol C(60)(OH)(24) polyanion nanoparticles, an antioxidant agent, against doxorubicin-induced nephro-, testicular, and pu...
journal_title:Toxicology mechanisms and methods
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doi:10.3109/15376516.2010.485622
更新日期:2010-07-01 00:00:00
abstract::The effects of chlorpyrifos and fenvalerate on the activity of the cellulase, superoxide dismutase (SOD) and catalase (CAT) of the earthworm (Eisenia foetida) were studied. Earthworms were exposed to chlorpyrifos and fenvalerate at a final concentration of 10, 20, and 40 mg/kg dry soil, respectively. Tissues from each...
journal_title:Toxicology mechanisms and methods
pub_type: 杂志文章
doi:10.3109/15376516.2011.640718
更新日期:2012-04-01 00:00:00
abstract::This article described an improved brine shrimp larvae lethality microwell test method. A simply designed connecting vessel with alternative photoperiod was used to culture and collect high yield of active Artemia parthenogenetica nauplii for brine shrimp larvae lethality microwell test. Using this method, pure A. par...
journal_title:Toxicology mechanisms and methods
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doi:10.3109/15376516.2011.583297
更新日期:2012-01-01 00:00:00
abstract::Histone deacetylase 2 (HDAC2), a prominent member of the class I HDAC family, plays crucial roles in inflammation and other pathological processes. Recent studies have found that the activity and expression of HDAC2 were altered under oxidative stress conditions. The aim of the current study was to elucidate the expre...
journal_title:Toxicology mechanisms and methods
pub_type: 杂志文章
doi:10.3109/15376516.2012.716091
更新日期:2012-10-01 00:00:00
abstract::ABSTRACT Oxidative damage to cellular constituents is one of the major mechanisms of alcoholic liver injury, and administration of antioxidants ameliorates alcoholic liver disease. The present study investigated the influence of (-) epigallocatechin gallate (EGCG), a major polyphenol component of green tea, on oxidant...
journal_title:Toxicology mechanisms and methods
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doi:10.1080/15376510701884985
更新日期:2008-01-01 00:00:00
abstract:UNLABELLED:Cisplatin (CP) is an antineoplastic agent that induces nephrotoxicity and oxidative stress. It is unknown whether renal tight junction (TJ) proteins expression and localization are modified in CP-induced nephrotoxicity. OBJECTIVE:To study if the expression of the TJ proteins occludin, claudin-2, claudin-5 a...
journal_title:Toxicology mechanisms and methods
pub_type: 杂志文章
doi:10.3109/15376516.2014.948248
更新日期:2014-10-01 00:00:00
abstract::Several deleterious effects of Tramadol including deaths were reported especially when used in large doses. Being metabolized mainly in the liver, Tramadol have serious hepatotoxic effects. This study investigates the effect of vitamin E on Tramadol-induced hepatotoxicity in rats by evaluating the antioxidant biochemi...
journal_title:Toxicology mechanisms and methods
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doi:10.1080/15376516.2019.1681043
更新日期:2020-03-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:The aim of this study was to evaluate genotoxicity and mutagenicity in peripheral blood and buccal mucosal cells in mucopolysaccharidosis (MPS) I, II or VI patients. METHODS:A total of 12 patients with MPS type I, II and VI attended at the Institute of Genetics and Inborn Errors of Metabolism...
journal_title:Toxicology mechanisms and methods
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doi:10.3109/15376516.2014.956913
更新日期:2014-12-01 00:00:00
abstract::Cadmium is one of the most toxic elements to which man can be exposed at work or in the environment. By far, the most salient toxicological property of Cd is its exceptionally long half-life in the human body. Once absorbed, Cd accumulates in the human body, particularly in the liver and other vital organs. The cellul...
journal_title:Toxicology mechanisms and methods
pub_type: 杂志文章
doi:10.3109/15376510903325670
更新日期:2009-10-01 00:00:00
abstract::In pregnancy, opioids may be used medically and also misused. We hypothesized that the umbilical cord (UC) could be a good screening tool for determining opioid exposure and improving medical care. One hundred and one UC, each with 50 associated ICD9/ICD10 codes were used. Using predictive pharmacokinetic analysis we ...
journal_title:Toxicology mechanisms and methods
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doi:10.1080/15376516.2018.1506850
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abstract::Ornithine decarboxylase (ODC) activity is used widely as a biomarker for tumor promotion in animal model systems. Several previous studies have reported increases in ODC activity in tissues of rats exposed to 60 Hz magnetic fields. The goals of this study were to confirm these findings and to determine whether ODC act...
journal_title:Toxicology mechanisms and methods
pub_type: 杂志文章
doi:10.1080/15376510309826
更新日期:2003-01-01 00:00:00
abstract::Mitochondrial haplogroups can differ in frequency of occurrence in those who are 100 years old and in the rest of the population. These differences are not universally observed; moreover, they are population-specific. We analyzed the haplogroups in 97 Polish 100-year-olds and compared them with those of more than 145 ...
journal_title:Toxicology mechanisms and methods
pub_type: 杂志文章
doi:10.1080/15376520490257572
更新日期:2004-01-01 00:00:00
abstract::The β-glucans (β-G) are polysaccharides produced by various organisms, and sulfation of β-G renders them more soluble. With the objective to assess the effects of sulfated and non-sulfated β-G extracted from Agaricus brasiliensis in MCF-7 cells, assays were used to evaluate cytotoxicity, genotoxicity, cell proliferati...
journal_title:Toxicology mechanisms and methods
pub_type: 杂志文章
doi:10.3109/15376516.2015.1043762
更新日期:2015-01-01 00:00:00
abstract::In the present investigation acetylcholinesterase (AChE) was estimated in erythrocytes from blood samples exposed to four commonly used organophosphorus pesticides in vitro. The aim of the study was to determine the IC50 concentration of the pesticides monocrotophos, chlorpyrifos, profenofos, and acephate as inhibitor...
journal_title:Toxicology mechanisms and methods
pub_type: 杂志文章
doi:10.1080/15376520600719281
更新日期:2006-01-01 00:00:00
abstract::Chronic hyperglycemia leads to the development of microvascular complications like diabetic nephropathy. The present study investigated the potential effects of the hydroalcoholic extract of Tribulus terrestris, a plant of Zygophyllaceae family, on the renal complications in streptozotocin (STZ)-induced diabetic rats....
journal_title:Toxicology mechanisms and methods
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doi:10.3109/15376516.2013.797533
更新日期:2013-09-01 00:00:00
abstract::Methylglyoxal (MG) is a reactive dicarbonyl metabolite originated mainly from glucose degradation pathway that plays an important role in the pathogenesis of diabetes mellitus (DM). Reactions of MG with biological macromolecules (proteins, DNA and lipids) can induce cytotoxicity and apoptosis. Here, human erythrocytes...
journal_title:Toxicology mechanisms and methods
pub_type: 杂志文章
doi:10.1080/15376516.2017.1285971
更新日期:2017-05-01 00:00:00
abstract:CONTEXT:Over expression of renin-angiotensin system (RAS) and nuclear factor-kappaB (NF-κB) has a major role in many cancers. It has been suggested that some angiotensin receptor blockers (ARBs) could reduce the proliferation of cancer cells. The role of NF-κB pathway has been documented in cell proliferation. OBJECTI...
journal_title:Toxicology mechanisms and methods
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doi:10.3109/15376516.2015.1053647
更新日期:2015-01-01 00:00:00
abstract::Nematode Caenorhabditis elegans (C. elegans) was used to investigate the impact of silver nanoparticles (SNP), multiwalled carbon nanotubes (MWCNT), and polyamidoamine dendrimers (PAMAM) used in concentration of 1010 particle/mL. Population-based observations and gene expression analysis were employed in this study. S...
journal_title:Toxicology mechanisms and methods
pub_type: 杂志文章
doi:10.1080/15376516.2018.1449277
更新日期:2018-07-01 00:00:00
abstract::Carbon tetrachloride (CCl4) is a highly toxic industrial solvent with pronounced systemic toxicity including brain. Neurotoxicity may be a direct result of hepatic dysfunction from CCl4 intoxication. Over the years CCl4 has been used as an excellent model for studying experimentally induced neurotoxicity in murine mod...
journal_title:Toxicology mechanisms and methods
pub_type: 杂志文章
doi:10.3109/15376516.2014.945108
更新日期:2014-10-01 00:00:00
abstract:BACKGROUND:The potential toxicity resulting from the possible interactions of the herbicides, Ultrazin (atrazine, ATZ) and Bretmont Wipeout (glyphosate, GLY) (as commercialized in Nigeria), is not completely known. We therefore evaluated reproductive- and hepato-toxicity in rats co-exposed to ATZ and GLY. METHODS:Six ...
journal_title:Toxicology mechanisms and methods
pub_type: 杂志文章
doi:10.3109/15376516.2014.989349
更新日期:2015-01-01 00:00:00