Abstract:
:The epithelial Madin Darby canine kidney (MDCK) cell line and 17 human cell lines were examined for sensitivity to Clostridium perfringens type D epsilon-toxin. MDCK cells were confirmed as being sensitive to the toxin. In addition, the Caucasian renal leiomyoblastoma (G-402) human cell line was identified as being epsilon-toxin sensitive. Using the MTS/PMS assay system the concentration of toxin reducing cell culture viability by 50% (LC50) was found to be 2 microg/ml in MDCK cells. The LC50 for G-402 cells was 280 microg/ml. Epsilon-Toxin was found to be rapid acting in MDCK cells exposed to a maximum lethal dose of the toxin (40% loss of viability after a 0.5 h exposure), but slower acting in G-402 cells (40% loss of viability after 1.7 h exposure). Photomicrography of toxin exposed cultures indicated necrotic cell death on exposure to epsilon-toxin. Investigations using an antibody probe indicated that epsilon-toxin could bind to many cell surface proteins in both MDCK, G-402 and a toxin insensitive human cell line (CAKI-2). It has previously been found that the toxin may bind to the cell surface via glycosylated moieties. However, exposing MDCK and G-402 cells to epsilon-toxin in the presence of sialic acid and several different sugars did not reduce the lethal effects of the toxin.
journal_name
Hum Exp Toxicoljournal_title
Human & experimental toxicologyauthors
Shortt SJ,Titball RW,Lindsay CDdoi
10.1191/096032700678815710subject
Has Abstractpub_date
2000-02-01 00:00:00pages
108-16issue
2eissn
0960-3271issn
1477-0903journal_volume
19pub_type
杂志文章abstract::The effects of acute administration of dietary levels of ethanol and the garlic oil extract, diallyl sulphide (DAS), on cytochrome P450 2E1 (CYP2E1) activity in volunteers were studied using the selective probe substrate, chlorzoxazone (CZX). The ratio of the CZX metabolite 6- hydroxychlorzoxazone (6-OHCZX) to CZX was...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1191/096032701680350587
更新日期:2001-07-01 00:00:00
abstract::The US Environmental Protection Agency (EPA) recently issued a Staff Paper that articulates current risk assessment practices. In section 4.1.3, EPA states, "... effects that appear to be adaptive, non-adverse, or beneficial may not be mentioned." This statement may be perceived as precluding risk assessments based on...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1191/0960327106ht580oa
更新日期:2006-01-01 00:00:00
abstract::Enterococcus faecalis is a facultative anaerobic gram-positive commensal bacterium common in the gastrointestinal tract of animals and humans. This study aimed to investigate the protective effects of heat-killed E. faecalis EF-2001 (EF-2001) on acute gastric ulcer using a murine model of ethanol (EtOH)-induced acute ...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/0960327119899987
更新日期:2020-05-01 00:00:00
abstract::Potassium bromate (KBrO3) is a potent nephrotoxic agent. In this paper, we report the chemopreventive effect of Nigella sativa (black cumin) on KBrO3-mediated renal oxidative stress, toxicity and tumor promotion response in rats. KBrO3 (125 mg/kg body weight, intraperitoneally) enhances lipid peroxidation, gamma-gluta...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1191/0960327103ht349oa
更新日期:2003-04-01 00:00:00
abstract::Diazinon is one of the most widely used organophosphate insecticides (OPI) in agriculture and public health programs. The aim of this study was to investigate how an OPI, diazinon, affects lipid peroxidation (LPO) and the antioxidant defense system in vitro. For this purpose, two experiments were carried out. In exper...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1191/0960327104ht408oa
更新日期:2004-01-01 00:00:00
abstract::The aim of this study was to investigate the possible protective role of caffeic acid phenethyl ester on testicular toxicity of methotrexate in rats. Nineteen male rats were divided into three groups as follows: group I, control; group II, methotrexate-treated; group III, methotrexate + caffeic acid phenethyl ester-tr...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/0960327108092293
更新日期:2008-07-01 00:00:00
abstract::Oxidative stress has an important role in the pathophysiology of many occupational diseases. In this controlled exposure study, the intensity of oxidative stress biomarkers was assessed in the workers of natural sweet and sour gas refineries (SwGR and SoGR, respectively) and compared with controls. In addition, the ro...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/0960327112450898
更新日期:2012-12-01 00:00:00
abstract::Arsenic trioxide (As2O3) is utilized for treating patients suffering from hematological malignancies particularly acute promyelocytic leukemia. Unfortunately, the extensive application of this chemotherapeutic agent has been limited due to its adverse effects such as cardiotoxicity. Ellagic acid, as a phenolic compoun...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/0960327117701986
更新日期:2018-04-01 00:00:00
abstract::1. A chronic alcoholic with severe metabolic acidosis presents a difficult diagnostic problem. The most common cause is alcoholic ketoacidosis, a syndrome with a typical history but often misleading laboratory findings. This paper will focus on this important and probably underdiagnosed syndrome. 2. The disorder occur...
journal_title:Human & experimental toxicology
pub_type: 杂志文章,评审
doi:10.1177/096032719601500604
更新日期:1996-06-01 00:00:00
abstract::Drugs intended for use in preventing allograft rejection in transplant patients are likely to be administered chronically; thus, it is normally expected that sponsors would conduct nonclinical studies to determine the carcinogenic potential of candidate compounds. For pharmaceuticals other than biologic agents, this w...
journal_title:Human & experimental toxicology
pub_type: 杂志文章,评审
doi:10.1191/096032700678815837
更新日期:2000-04-01 00:00:00
abstract::The aim of this study was to compare simultaneously obtained arterial and capillary blood gas (CBG) values in comatose-poisoned patients presented with stable vital signs. Forty-five adult patients with a diagnosis of coma because of poisoning and stable vital signs were included in this prospective study. With respec...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/0960327109107001
更新日期:2009-10-01 00:00:00
abstract:OBJECTIVES:The aim of this study was to evaluate, the cytotoxicity of orthodontic composites in vitro as a function of degree of conversion (DC) and the light curing units (LCU) employed on mouse fibroblast (L929). MATERIALS AND METHODS:Cured samples of the composites Light bond (Reliance Orthodontic Products, Itasca,...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/0960327113520020
更新日期:2014-10-01 00:00:00
abstract::In this study, genotoxic activities of four halogenated anesthetics (halothane, isoflurane, sevoflurane and desflurane) were investigated in human peripheral blood lymphocytes (PBLs) and sperm cells in vitro by alkaline comet assay. For this purpose, sperm or lymphocyte suspension was exposed to different concentratio...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/0960327112446818
更新日期:2012-12-01 00:00:00
abstract::Morphine-6-glucuronide, the active metabolite of morphine, and to a lesser extent morphine itself are known to accumulate in patients with renal failure. A number of cases on non-lethal morphine toxicity in patients with renal impairment report high plasma concentrations of morphine-6-glucuronide, suggesting that this...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/0960327110388962
更新日期:2011-09-01 00:00:00
abstract::Endogenous alcohol has been applied for spontaneous ethanol production via different metabolic pathways of the human body. Auto-brewery syndrome describes the patients with alcohol intoxication after ingesting carbohydrate-rich meals. The main objective of this study is to investigate the effect of diabetes mellitus (...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/0960327116661400
更新日期:2017-05-01 00:00:00
abstract::Neutrophil functions were studied in 38 lead-exposed workers compared to 34 controls. Both groups were matched according to age, sex, drinking and smoking habits, ethnic origin and drug intake. Blood lead levels were found to be seven times higher in exposed workers than in controls. Phagocytosis assayed by chemilumin...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/096032719000900405
更新日期:1990-07-01 00:00:00
abstract:OBJECTIVE:Oxidative stress is one of the major mechanisms of cyclophosphamide (CPX)-induced toxicities. However, it is unknown how CPX induces oxidative stress. Based on the available information, we speculated that CPX could increase iron content in the tissues and then induce oxidative stress. METHOD:We tested this ...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/0960327120909880
更新日期:2020-07-01 00:00:00
abstract::We have investigated the pituitary-testicular axis in a well-characterized population which was occupationally exposed to mercury vapour. Thyroid stimulating hormone and prolactin were also measured as indices of thyroid and pituitary endocrine function. We found no relation between blood or urine mercury levels or le...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/096032719101000309
更新日期:1991-05-01 00:00:00
abstract::Clinical and experimental studies have shown the adverse effects of excess glucocorticoid on testicular testosterone production. The NADPH co-enzyme has been recognized as an important factor that regulates several steps in steroidogenesis, while glucose oxidation acts as a limiting factor on testicular testosterone p...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1191/0960327106ht591oa
更新日期:2006-03-01 00:00:00
abstract::Hexafluorocyclobutene (HFCB), a reactive organohalogen gas, causes overwhelming pulmonary oedema. We investigated its effect on the rat lung surfactant system, comparing its action on type II pneumocytes with air-exposed rats. The inflammatory cell population and protein content of bronchoalveolar lavage fluid was ana...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1191/096032701678227686
更新日期:2001-05-01 00:00:00
abstract::Accidental ingestion of electrical batteries occurs commonly in children. This rarely is associated with severe morbidity and mortality. Significant symptoms can arise due to leakage of alkali or heavy metals from the battery after degradation in the gastrointestinal tract. The main heavy metal of concern in electrica...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1191/0960327104ht433oa
更新日期:2004-04-01 00:00:00
abstract::The National Toxicology Program (NTP) Technical Reports online database was reviewed to find chemicals that were reported to show clear evidence of carcinogenicity in the NTP rodent studies and for which data on human exposure could be found. Six representative compounds were selected. Three volatile compounds: ethyl ...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1191/0960327103ht374oa
更新日期:2003-09-01 00:00:00
abstract::1. In humans CaNa2EDTA increases urinary excretion of lead as well as that of essential metals such as zinc, ferrum and manganese but not that of copper. 2. We studied the effect of CaNa2EDTA injection on serum dopamine-beta-hydroxylase, a copper-dependent enzyme, in three male lead welders hospitalized for suspected ...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/096032719401300405
更新日期:1994-04-01 00:00:00
abstract::Boophone disticha (B. disticha) has been used systemically in traditional medical practice in Zimbabwe and neighbouring countries for the management of various central nervous system conditions including hysteria. Abuse of the plant by teenagers in Zimbabwe for its claimed hallucinogenic effects has also been reported...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/0960327110384524
更新日期:2011-08-01 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::This study investigated the main target sites of chlorpyrifos (CPF), its effect on biochemical indices, and the pathological changes observed in rat liver and kidney function using gas chromatography/mass spectrometry. Adult female Wistar rats (n = 12) were randomly assigned into two groups (one control and one test g...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/0960327115614384
更新日期:2016-09-01 00:00:00
abstract::Coronary heart disease and in particular its most serious form - acute myocardial infarction (AMI) - represents the most common cause of mortality in developed countries. Better prognosis may be achieved by understanding the etiopathogenetic mechanisms of AMI. Therefore, a catecholamine model of myocardial injury, whi...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/0960327109350665
更新日期:2009-10-01 00:00:00
abstract::The present study was designed to evaluate the cardioprotective potential of lycopene (LCP) against isoproterenol (ISP)-induced myocardial infarction (MI), by assessing hemodynamic, biochemical and histopathological parameters. Wistar male albino rats were orally administered with LCP (0.5, 1.0 and 1.5 mg/kg) or with ...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/0960327112454890
更新日期:2013-05-01 00:00:00
abstract::A retrospective review of medical records was carried out to determine the pattern of drug and chemical poisoning cases admitted to a teaching hospital in Malaysia. Medical records of patients admitted during the period January 1987 to December 1995 were reviewed. They accounted for 0.2% of total admissions during the...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1191/0960327102ht260oa
更新日期:2002-07-01 00:00:00
abstract::Drugs containing 5-acetylsalicylic acid (5-ASA) have been commonly used for inflammatory bowel diseases for more than half a century, but no case about overdose of suppository form of mesalazine which was taken both orally and rectally has been reported in the related literature up to now. In the present case, a 20-ye...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/0960327110379249
更新日期:2011-07-01 00:00:00