Comparison of the toxicity of methylcyclopentadienyl manganese tricarbonyl with that of its two major metabolites.

abstract：:Oxidative stress has been pointed as an important molecular mechanism for liver injury in methylmercury (MeHg) poisoning. Ebselen, a seleno-organic compound that possesses anti-oxidant properties, is a useful therapeutic agent used in clinical situations involving oxidative stress. Here, we examined the possible in vi...

journal_title：Toxicology letters

authors： Farina M,Soares FA,Zeni G,Souza DO,Rocha JB

更新日期：2004-02-02 00:00:00

abstract：:Iron plays a critical role in a mammal's physiological processes. However, iron tissue deposits have been shown to act as endocrine disrupters. Studies that evaluate the effect of acute iron overload on hypothalamic-pituitary-gonadal (HPG) axis health are particularly sparse. This study demonstrates that acute iron ov...

journal_title：Toxicology letters

authors： Rossi EM,Marques VB,Nunes Dde O,Carneiro MT,Podratz PL,Merlo E,dos Santos L,Graceli JB

更新日期：2016-01-05 00:00:00

abstract：:Cellular uptake and cytotoxicity of chenodeoxycholic acid, delivered free or encapsulated in liposomes, were compared in isolated rat hepatocytes. As quantified by leakage of cytoplasmic and lysosomal enzymes into the medium, cells exposed to free chenodeoxycholic acid displayed a dose-dependent cytotoxic response. Ce...

journal_title：Toxicology letters

authors： Salhab AS,Stacey NH,Dujovne CA

更新日期：1984-04-01 00:00:00

abstract：:Haemolysis by chrysotile fibres may be related to an adsorption of the red blood cell (RBC) membranes on the fibres and not to an interaction between magnesium (Mg) from the fibres and sialic acid from RBC. This was demonstrated using neuraminidase (NANASE)-treated RBC and Mg-depleted chrysotile fibres. The mechanism ...

journal_title：Toxicology letters

authors： Jaurand MC,Magne L,Bignon J

更新日期：1983-02-01 00:00:00

abstract：:Dioxins are a class of extremely toxic environmentally persistent pollutant, comprised of halogenated dibenzo-p-dioxins, dibenzofurans and biphenyls. Despite significant human exposure via multiple routes, very little is known about toxicity induced by dibenzofuran (DF). Current study shed lights on the potential toxi...

journal_title：Toxicology letters

authors： Jaiswal PK,Srivastava S,Gupta J,Thakur IS

更新日期：2012-10-17 00:00:00

abstract：:Tetramethylenedisulfotetramine (TMDT) is a synthetic neurotoxic rodenticide and potential chemical threat agent. Signs of TMDT poisoning include convulsions which can progress into status epilepticus and death. Although clinical reports clearly show that poisoning via food and drink is the main route of exposure, expe...

journal_title：Toxicology letters

authors： Lauková M,Pervez S,Rosman R,Velíšková J,Velíšek L,Shakarjian MP

更新日期：2019-06-15 00:00:00

abstract：:The binding of [3H]aflatoxin B1 (AFB1) to the DNA, RNA and protein of liver after i.p. administration to rats with and without ethanol pretreatment was studied. The quantities of AFB1 binding to DNA and RNA were significantly increased by ethanol pretreatment but the formation of protein adducts was not affected. AFB1...

journal_title：Toxicology letters

authors： Toskulkao C,Glinsukon T

更新日期：1986-02-01 00:00:00

abstract：:Morphological malformations induced by tributyltin (TBT) exposure during embryonic development have already been characterized in various taxonomic groups, but, nonetheless, the molecular processes underlying these changes remain obscure. The present study provides the first genome-wide screening for differentially ex...

journal_title：Toxicology letters

authors： Scheider J,Afonso-Grunz F,Jessl L,Hoffmeier K,Winter P,Oehlmann J

更新日期：2018-03-01 00:00:00

abstract：:Blood-testis barrier (BTB) provides a suitable microenvironment for germ cells that is required for spermatogenesis. Exposure to particulate matter (PM) is recognized to occasion male reproductive impairment, but the mechanism of which remains unclear. Male Sprague-Dawley (SD) rats were used to establish animal models...

journal_title：Toxicology letters

authors： Cao XN,Shen LJ,Wu SD,Yan C,Zhou Y,Xiong G,Wang YC,Liu Y,Liu B,Tang XL,Guo M,Liu DY,Long CL,Sun M,He DW,Lin T,Wei GH

更新日期：2017-01-15 00:00:00

abstract：:Coumarin and its derivatives are widely employed as a fragrance in cosmetics and skin care products. The skin absorption level and possible disruption to the skin by topical application of coumarins were evaluated in this study. Percutaneous absorption of osthole, daphnoretin, coumarin, byakangelicin, and 7-hydroxycou...

journal_title：Toxicology letters

authors： Pan TL,Wang PW,Aljuffali IA,Leu YL,Hung YY,Fang JY

更新日期：2014-04-21 00:00:00

abstract：:alpha-Zearalanol (alpha-ZAL), a phytochemical with both antioxidant and estrogen-like properties, has been shown to retard progression of atherosclerosis and regulate cardiovascular function in part through suppression of endothelin-1 (ET-1) secretion. However, the precise nature behind alpha-ZAL-elicited inhibition o...

journal_title：Toxicology letters

authors： Xu H,Duan J,Dai S,Wu Y,Sun R,Ren J

更新日期：2008-07-10 00:00:00

abstract：:The phthalates di(2-ethylhexyl)phthalate (DEHP) and di-n-butyl phthalate (DBP) are environmental contaminants with significant human exposures. Both compounds are known reproductive toxins in rodents and DEHP also induces rodent hepatocarcinogenesis in a process believed to be mediated via the peroxisome proliferator-...

journal_title：Toxicology letters

authors： Venkata NG,Robinson JA,Cabot PJ,Davis B,Monteith GR,Roberts-Thomson SJ

更新日期：2006-06-01 00:00:00

abstract：:Mutagenic activity of aflatoxin B1 (AFB1) was followed in the Ames Salmonella/microsome test using liver S-9 from control and partially hepatectomized (PH) mice. The S-9 preparations from the PH mice were capable of inducing significantly greater AFB1 mutagenic activity to strain TA100 than S-9 preparations from eithe...

journal_title：Toxicology letters

authors： Vandewaa EA,Barney CC,Gentile JM

更新日期：1982-12-01 00:00:00

abstract：:Exposure to chemicals released during urban waste disposal and treatment is increasingly regarded as a potential occupational health issue. Indeed, several toxic metals emitted by an incinerator, including As, Be, Cd, Cr, Pb, Mn, Hg, Ni and V, have potentially toxic properties and their exposure, therefore, may be of ...

journal_title：Toxicology letters

authors： Mauriello MC,Sbordone C,Montuori P,Alfano R,Triassi M,Iavicoli I,Manno M

更新日期：2017-04-15 00:00:00

abstract：:Anti-androgenic chemicals alter sexual differentiation by a variety of mechanisms, and the mechanisms between phthalate esters and p,p'-DDE are considered to be different. We performed an in utero through lactational exposure assay using dicyclohexyl phthalate and p,p'-DDE to investigate the sexual differentiation of ...

journal_title：Toxicology letters

authors： Yamasaki K,Okuda H,Takeuchi T,Minobe Y

更新日期：2009-08-25 00:00:00

abstract：:The effects of vitamin C on acute paracetamol poisoning were studied in mice. Given orally at 50, 100 or 200 mg/kg, either simultaneously or 2 h after the oral administration of 875 mg/kg of paracetamol, vitamin C did not cause any decrease in the mortality rate. In similar conditions in previous experiments methionin...

journal_title：Toxicology letters

authors： Romero-Ferret C,Mottot G,Legros J,Margetts G

更新日期：1983-08-01 00:00:00

abstract：:The effects of T-2 toxin on the in vitro mitogen responses and the antibody-producing ability of human peripheral blood lymphocytes were evaluated. T-2 toxin inhibited the mitogen response to concanavalin A (ConA) at a lower concentration (1.6 ng/ml) as compared to phytohemagglutinin (2.4 ng/ml) and pokeweed mitogen (...

journal_title：Toxicology letters

authors： Tomar RS,Blakley BR,De Coteau WE

更新日期：1988-02-01 00:00:00

abstract：:Welding fumes contain various toxic metals including chromium (Cr), nickel (Ni) and manganese (Mn). An assessment of the risk to health of local and systemic exposure to welding fumes requires the assessment of both external and internal doses. The aims of this study were to test the relevance in small and medium size...

journal_title：Toxicology letters

authors： Persoons R,Arnoux D,Monssu T,Culié O,Roche G,Duffaud B,Chalaye D,Maitre A

更新日期：2014-12-01 00:00:00

abstract：:Primary renal neoplasms in the rats are uncommon. Nephroblastoma is the only renal embryonal tumor of the rat; all other tumors are reported in older rats. The occurrence of spontaneous nephroblastoma in rats has been reported. However, metastasis from the nephroblastoma in rat is extremely rare. Data from 2669 Spragu...

journal_title：Toxicology letters

authors： Chandra M,Carlton WW

更新日期：1992-09-01 00:00:00

abstract：BACKGROUND:Although thousands of different chemicals have been identified in cigarette smoke, the characterization of their urinary metabolites still requires significant research. The aim of this work was to perform an untargeted metabolomic approach to a pilot cross-sectional study conducted on subjects with differen...

journal_title：Toxicology letters

authors： Frigerio G,Mercadante R,Campo L,Polledri E,Boniardi L,Olgiati L,Missineo P,Nash WJ,Dunn WB,Fustinoni S

更新日期：2020-09-01 00:00:00

abstract：:The availability of different chemical forms of mercury (Hg) was studied in primary cultures of rat hepatocytes incubated with mercuric acetate (HgAc), mercuric diethyldithiocarbamate (Hg(DTC)2) or methyl mercuric chloride (MeHgCl), labelled with 203Hg. The uptake of Hg was linearly related to the concentration in the...

journal_title：Toxicology letters

authors： Hellström-Lindahl E,Oskarsson A

更新日期：1989-10-01 00:00:00

abstract：:Neurobehavioral effects of polychlorinated biphenyls (PCBs) at environmental levels of exposure have been reported in cross-sectional and prospective studies in infants and children. However, observations differ for effect spectrum, persistence and effective matrix (cord plasma, maternal plasma or milk). In order to i...

journal_title：Toxicology letters

authors： Winneke G,Bucholski A,Heinzow B,Krämer U,Schmidt E,Walkowiak J,Wiener JA,Steingrüber HJ

更新日期：1998-12-28 00:00:00

abstract：:Pregnant CD-1 mice were given 32 mg/kg of 3,4,3',4'-tetrachlorobiphenyl (TCB) or corn oil vehicle, by gavage, on days 10--16 of gestation. At 1 year of age, the offspring were tested for spontaneous motor activity; the mice were then killed and dopamine (DA) levels and specific DA receptor binding were measured in the...

journal_title：Toxicology letters

authors： Agrawal AK,Tilson HA,Bondy SC

更新日期：1981-03-01 00:00:00

abstract：:There are multiple lines of evidence showing that environmental toxicants including pesticides may contribute to neuronal cell death. Fipronil (FPN) is a phenylpyrazole insecticide that acts on insect GABA receptors. Although the action of FPN is restricted to insect neuronal or muscular transmitter systems, a few stu...

journal_title：Toxicology letters

authors： Ki YW,Lee JE,Park JH,Shin IC,Koh HC

更新日期：2012-05-20 00:00:00

abstract：:The people studied were male volunteers without occupational and dietary exposure to PAH: 27 smokers (10 cigarettes or more) and 27 non-smokers matched for age and socio-professional category. For each person, all the 24h voided urine samples were reassembled in a single sample. 1-Hydroxypyrene (1-OHPy) and 3-hydroxyb...

journal_title：Toxicology letters

authors： Lafontaine M,Champmartin C,Simon P,Delsaut P,Funck-Brentano C

更新日期：2006-04-10 00:00:00

abstract：:Female SWR mice were treated with 1,2-dimethylhydrazine (DMH: 6.8 mg/kg i.p. injection) once weekly for up to 10 weeks, a dosing regime that produced tumours principally within the distal colon (Jackson et al., 1999. Carcinogenesis 20, 509-513). O(6)-Methylguanine (O(6)-MeG) levels, measured using a simple [3H]-based ...

journal_title：Toxicology letters

authors： Jackson PE,Cooper DP,Meyer TA,Wood M,Povey AC,Margison GP

更新日期：2000-06-05 00:00:00

abstract：:There is sufficient evidence for pulmonary carcinogenicity of inhaled cadmium (Cd) compounds in rats whereas no such evidence was found in mice and hamsters, indicating significant species differences in the pulmonary response to inhaled Cd. We hypothesized that expression of metallothionein (MT) protein in the lung a...

journal_title：Toxicology letters

authors： Oberdörster G,Cherian MG,Baggs RB

更新日期：1994-06-01 00:00:00

abstract：:1,2-Dioxetanes, very reactive and high energy molecules, are involved as labile intermediates in dioxygenase-activated aerobic metabolism and in physiological processes. Various toxicological tests reveal that dioxetanes are indeed genotoxic. In supercoiled DNA of bacteriophage PM2 they induce endonuclease-sensitive s...

journal_title：Toxicology letters

authors： Adam W,Ahrweiler M,Saha-Möller CR,Sauter M,Schönberger A,Epe B,Müller E,Schiffmann D,Stopper H,Wild D

更新日期：1993-04-01 00:00:00

abstract：:Diclofenac is a widely prescribed NSAID that causes severe idiosyncratic drug induced liver injury (IDILI) in a small part of the patient population. Formation of protein-reactive metabolites is considered to play a role in the development of diclofenac-induced IDILI. Therefore, a high hepatic activity of enzymes invo...

journal_title：Toxicology letters

authors： den Braver MW,Zhang Y,Venkataraman H,Vermeulen NP,Commandeur JN

更新日期：2016-07-25 00:00:00

abstract：:Early detection and removal of harmful factors are essential to the proper physical and psychological development of the fetus, presumably showing the effects during the prenatal period and after birth. As one procedure to aid in understanding such factors, we have established a shell-less culture system for video mon...

journal_title：Toxicology letters

authors： Hamamichi S,Nishigori H

更新日期：2001-02-28 00:00:00