Abstract:
:A sound understanding of the mechanisms determining percutaneous absorption is necessary for toxicological risk assessment of chemicals contacting the skin. As part of a programme investigating these mechanisms we have developed a physiologically based mathematical model. The structure of the model parallels the multi-layer structure of the skin, with separate surface, stratum corneum and viable tissue layers. It simulates the effects of partitioning and diffusive transport between the sub-layers, and metabolism in the viable epidermis. In addition the model describes removal processes on the surface of the skin, including the effects of washing and desquamation, and rubbing off onto clothing. This model is applied to data on the penetration of the herbicide fluazifop-butyl through human skin in vivo and in vitro. Part of this dataset is used to estimate unknown model parameter values and the remainder is used to provide a partial validation of the model. Only a small fraction of the applied dose was absorbed through the skin; most of it was removed by washing or onto clothing. The model provides a quantitative description of these loss processes on the skin surface.
journal_name
Hum Exp Toxicoljournal_title
Human & experimental toxicologyauthors
Auton TR,Westhead DR,Woollen BH,Scott RC,Wilks MFdoi
10.1177/096032719401300108subject
Has Abstractpub_date
1994-01-01 00:00:00pages
51-60issue
1eissn
0960-3271issn
1477-0903journal_volume
13pub_type
杂志文章abstract::Phagocytes remove and store mercury (Hg) that enters the body. Macrophages and granulocytes respond in opposite ways to Hg: macrophages loose cell viability, and neutrophils become protected from apoptosis. We have investigated the cytology of early intake of Hg by macrophages and neutrophils after a short period (2-4...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1191/0960327104ht472oa
更新日期:2004-08-01 00:00:00
abstract::Resveratrol, a grape skin and red wine-derived polyphenolic phytoalexin, exhibits hormetic action delivering numerous health benefits at lower doses while being detrimental at higher doses. Epidemiologic and clinical trials need to be based on the clear understanding of hormetic health benefits of resveratrol. ...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/0960327110383626
更新日期:2010-12-01 00:00:00
abstract::The time-dependent changes in lead (Pb) concentrations in major tissues, serum and urine, and the Pb biomarker delta-aminolevulinic acid (ALA) concentration in urine were studied in rats after sub-chronic Pb exposure. Female Sprague-Dawley (SD) rats were exposed to Pb in drinking water at concentrations of 100 ppm and...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/0960327109107046
更新日期:2009-10-01 00:00:00
abstract::This study deals with pesticide exposure profile in some European countries with a specific focus on ethylenebisdithiocarbamates (EBDC). In all, 55 Bulgarian greenhouse workers, 51 Finnish potato farmers, 48 Italian vineyard workers, 42 Dutch floriculture farmers, and 52 Bulgarian zineb producers entered the study. Ea...
journal_title:Human & experimental toxicology
pub_type: 杂志文章,多中心研究
doi:10.1177/0960327108100003
更新日期:2008-09-01 00:00:00
abstract::The purpose of this study was to characterize the zinc oxide nanoparticles (ZnO-NPs) and their bulk counterpart in suspensions and to access the impact of their acute oral toxicity at doses of 300 and 2000 mg/kg in healthy female Wistar rats. The hematological, biochemical, and urine parameters were accessed at 24 and...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/0960327116629530
更新日期:2016-12-01 00:00:00
abstract:OBJECTIVE:The objective of the present study was to determine oxidant and antioxidant status in infants with hyperbilirubinemia and/or kernicterus and to find whether there is a relationship between bilirubin level and oxidant/antioxidant status. PATIENTS:The study includes 69 full-term newborns (neonates with hyperbi...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/0960327111401638
更新日期:2011-11-01 00:00:00
abstract::Vigabatrin (VGB) is an antiepileptic drug thatincreases brain γ-aminobutyric acid (GABA) levels through irreversible inhibition of GABA transaminase. The aim of this study was to evaluate neurotoxicological effects of VGB measuring motor activity and genotoxic and mutagenic effects after a single and repeated administ...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/0960327115611970
更新日期:2016-09-01 00:00:00
abstract::Celecoxib has been shown to have antitumor effect in previous studies but the mechanisms are unclear. The effect of celecoxib on cytosolic Ca(2+) concentrations ([Ca(2+)]i) and viability in HA59T human hepatoma cells was explored. The Ca(2+)-sensitive fluorescent dye fura-2 was applied to measure [Ca(2+)]i. Celecoxib ...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/0960327112472996
更新日期:2014-11-01 00:00:00
abstract::The second-generation selective 5-HT2 receptor antagonists and reuptake inhibitors (SARIs) class antidepressants are known to have fewer cardiovascular side effects than the older ones. However, several case reports showed that trazodone, one of the second-generation SARIs, induces QT prolongation, cardiac arrhythmia,...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/0960327115595683
更新日期:2016-05-01 00:00:00
abstract::This study was designed to determine the levels of prolactin, leptin, osteopontin, and follistatin in workers chronically and subacutely exposed to lead compounds. The examined population consisted of three groups. The first group was composed of 56 male workers who were chronically exposed to lead for 13.38 ± 10.38 y...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/0960327116658106
更新日期:2017-06-01 00:00:00
abstract::Trichothecenes are mycotoxins produced by various species of fungi which can occur on various agricultural products. Among these compounds, T-2 toxin, HT-2 toxin, diacetoxyscirpenol (DAS) and deoxynivalenol (DON) are the most naturally encountered and potent trichothecenes. Consumption of trichothecene contaminated fo...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/096032719701601108
更新日期:1997-11-01 00:00:00
abstract::The Na+-taurocholate cotransporting polypeptide (NTCP) acts as the major hepatic basolateral uptake system, and plays a key role in balancing bile flow. The anti-tuberculosis drugs rifampin (RFP) can affect bile flow causing liver injury, while tanshinone IIA (TAN IIA) has the effect of protecting liver. This study ai...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/0960327120979030
更新日期:2020-12-14 00:00:00
abstract::Derivatives of dehydrocrotonin (DHC; Compound I) with different anti-ulcerogenic properties but less toxicity were produced by reducing the cyclohexenone moiety of DHC with NaBH4 (Compound II), reducing the cyclohexenone and lactone moieties with LiAlH4 (Compound III) and transforming the lactone moiety into an amide ...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1191/0960327102ht246oa
更新日期:2002-05-01 00:00:00
abstract:BACKGROUND:The widespread use of synthetic cannabinoids (SCs) among youth has become an important public health problem. Several life-threatening side effects of SC have been reported, including cardiovascular, gastrointestinal, neurological, renal, metabolic, ophthalmologic, and pulmonary effects, besides skin toxicit...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/0960327120930057
更新日期:2020-11-01 00:00:00
abstract::Epichlorohydrin (ECH) is an antifertility agent that acts both as an epididymal toxicant and an agent capable of directly affecting sperm motility. This study identified the time course of apoptotic cell death in rat epididymides after ECH treatment. Rats were administrated with a single oral dose of ECH (50 mg/kg). E...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/0960327112467042
更新日期:2013-06-01 00:00:00
abstract::A liquid alcoholic extract of Papaver somniferum named Elixir Paregorico is extensively used for diarrheal diseases in Brazil. Its increased popularity has brought concerns and fears over the safety of this herbal product. Given the lack of investigative clinical studies, in this regard, this study investigated whethe...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/0960327108090274
更新日期:2008-10-01 00:00:00
abstract::To clarify the reproductive toxicity of polychlorinated biphenyl compounds through determination of testicular lipid peroxidation, reactive oxygen species and enzymatic and non-enzymatic antioxidants in rats exposed to Aroclor 1254. Adult male rats were administered Aroclor 1254 at a dose of 2 mg/kg per day ip for 30 ...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1191/0960327105ht500oa
更新日期:2005-02-01 00:00:00
abstract::The effect of fendiline on cytosolic free Ca(2+) concentrations ([Ca(2+)](i)) and proliferation has not been explored in human oral cancer cells. This study examined whether fendiline altered Ca(2+) levels and caused cell death in OC2 human oral cancer cells. [Ca(2+)](i) and cell viability were measured using the fluo...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/0960327108097436
更新日期:2009-01-01 00:00:00
abstract::Nicotinamide riboside (NR) is a naturally occurring form of vitamin B3 present in trace amounts in some foods. Like niacin, it has been shown to be a precursor in the biosynthesis of nicotinamide adenine dinucleotide (NAD+). The safety of Niagen™, a synthetic form of NR, was determined using a bacterial reverse mutage...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/0960327115626254
更新日期:2016-11-01 00:00:00
abstract::Iodine-125 HIPDM was evaluated as a screening agent for studying multiorgan toxicity due to Cyclosporine-A (CsA) and the results were compared to histopathological findings of the tissues. The rats were injected subcutaneously with 50 mg/kg (body weight) of CsA or with equal volume of the vehicle, Cremophor-EL, for 7 ...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/096032719601501101
更新日期:1996-11-01 00:00:00
abstract::Sulphur is an essential micronutrient required by the body in low concentrations, but its high intake can lead to a serious health hazard. Sulphur compounds are reported to induce several toxic responses in animals, but so far no reports are available on the toxic effects of elemental sulphur, following dietary supple...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1191/0960327104ht435oa
更新日期:2004-05-01 00:00:00
abstract::The number of definite and probable human chemical carcinogens identified by IARC approaches between 1987 and June 2004 is reported to be 50 agents. However, overall, given the rapid expansion in the number of chemicals in use, the throughput of the current approach to identifying potential environmental carcinogens i...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1191/0960327105ht559oa
更新日期:2005-11-01 00:00:00
abstract::Seafood is considered by nutritionists to be a high source of omega 3 long-chain polyunsaturated fatty acids (n-3 LC-PUFAs) which are involved in prevention of cardiovascular diseases. The aim of the present study is firstly to detect the presence of organochlorine pesticides and heavy metals in some fresh seafood of ...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/0960327110396535
更新日期:2011-10-01 00:00:00
abstract::Information on the acute effects associated with the handling of 1,4-dioxane is sparse. Our aim was to evaluate the acute effects of 1,4-dioxane vapours. In a screening study, six healthy volunteers rated symptoms on a visual analogue scale (VAS), while exposed to stepwise increasing levels of 1,4-dioxane, from 1 to 2...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/0960327106073805
更新日期:2006-12-01 00:00:00
abstract::1. Neonatal treatment of rats with vitamin D3 resulted in a change of sexual behavior in adulthood. 2. 2.5 mg vitamin D3 completely inhibited the ejaculation of males without any apparent influence on sexual desire. 250 mg vitamin D3 influenced both the desire and ejaculation. 3. Sexual activity of females was depress...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/096032719601500704
更新日期:1996-07-01 00:00:00
abstract::Until quite recently, pentabromodiphenyl ether (PentaBDE) was most commonly used as a flame retardant. Due to the considerably long atmospheric half-life of PentaBDE and its contribution to environmental pollution, it is categorized as a persistent organic pollutant (POP). As the data on the toxicity of PentaBDE is ra...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/0960327110371261
更新日期:2011-05-01 00:00:00
abstract::Evidence-based guidelines do not exist for the treatment of patients with chronic mild-moderate digoxin toxicity. We sought to evaluate differences among specialists in the use of digoxin-specific antibody fragments and the decision to admit these patients. A sample of cardiologists, emergency physicians, and medical ...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/0960327109105405
更新日期:2009-05-01 00:00:00
abstract::Hormesis can be considered as a parameter which has a non-monotonic relationship with some endpoint. Since caloric intake is such a parameter, and the impact of this parameter on risk assessment has been fairly well characterized, it can provide clues as to how to integrate the information from a hormetic parameter in...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/096032719801700810
更新日期:1998-08-01 00:00:00
abstract::Personal reflections on radiation hormesis for the past 50 years are presented. The causes of ignoring and rejections of this phenomenon by international and national bodies and by radiation protection establishment are analyzed. The opposition against nuclear weapons and preparations for nuclear war was probably the ...
journal_title:Human & experimental toxicology
pub_type: 历史文章,杂志文章,评审
doi:10.1177/0960327110363974
更新日期:2010-04-01 00:00:00
abstract::The common effects of acetaminophen (paracetamol), isopropylantipyrine (propyphenazone) and caffeine on fetal development were examined in rats. The mixture was given in Tween 80 solution once daily, in a constant proportion of 5:3:1, during days 8-14 of gestation in three different doses. Dose S1 - 3.5 mg/kg acetamin...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1191/0960327102ht224oa
更新日期:2002-01-01 00:00:00