L-asparaginase effects on inhibition of protein synthesis and lowering of the glutamine content in cultured rat hepatocytes.

abstract：:The interaction of zinc(II) on the toxicokinetics of 2,5-hexanedione (2,5-HD), the ultimate toxic metabolite of n-hexane, was performed by quantifying the changes of two urinary biomarkers, free 2,5-HD and pyrrole derivatives, in rats exposed to 2,5-HD and to 2,5-HD plus zinc acetate. Eight groups of Wistar rats were ...

journal_title：Toxicology letters

authors： Mateus ML,dos Santos AP,Batoréu MC

更新日期：2001-02-03 00:00:00

abstract：:Breathing pattern and lung mechanical parameters were measured in 7 female Wistar rats (ca. 200 g) during exposure to 1.0 (n = 5) or 1.3 (n = 2) ppm ozone in air for 2 h and during a 2-h post-exposure observation period. Changes in breathing pattern showed a gradual decrease from 3 to 2 Hz at constant minute ventilati...

journal_title：Toxicology letters

authors： Zwart A,Arts JH

更新日期：1994-06-01 00:00:00

abstract：:The environmental neurotoxin β-N-methylamino-L-alanine (BMAA) is not an amino acid that is normally found in proteins. Our previous autoradiographic study of (3)H-labeled BMAA in adult mice unexpectedly revealed a tissue distribution similar to that of protein amino acids. The aim of this study was to characterize the...

journal_title：Toxicology letters

authors： Karlsson O,Jiang L,Andersson M,Ilag LL,Brittebo EB

更新日期：2014-04-07 00:00:00

abstract：:12-O-Tetradecanoylphorbol-13-acetate (TPA) is a non-genotoxic tumor promoter that dysregulates the protein kinase C (PKC) pathway and causes variable cellular responses to DNA damage in different experimental models. In the present study, we pretreated human lymphoblastoid TK6 cells (wild-type p53) for 72 h with TPA, ...

journal_title：Toxicology letters

authors： Glover KP,Markell LK,Donner EM,Han X

更新日期：2014-08-17 00:00:00

abstract：:The skin absorption of aniline, aniline with 3% water content, and 1 and 2% aqueous aniline solutions was investigated in man. The time of exposure was 30 or 60 min. The absorbed amount of aniline was calculated on the basis of rho-aminophenol excretion in 24-h urine. The rate of aniline absorption from aqueous soluti...

journal_title：Toxicology letters

authors： Baranowska-Dutkeiwicz B

更新日期：1982-03-01 00:00:00

abstract：:Histone deacetylase (HDAC) inhibitors have recently emerged as a new class of anti-cancer agents. Trichostatin A (TSA), a classical HDAC inhibitor, has been demonstrated to induce cell cycle arrest, promote cell apoptosis, and inhibit metastasis. However, the molecular mechanism underlying TSA function has not been fu...

journal_title：Toxicology letters

authors： Liu Y,He G,Wang Y,Guan X,Pang X,Zhang B

更新日期：2013-07-31 00:00:00

abstract：:Goniothalamin, a styryllactone, has been shown to induce cytotoxicity via apoptosis in several tumor cell lines. In this study, we have examined the potential role of several genes, which were stably transfected into T-cell lines and which regulate apoptosis in different ways, on goniothalamin-induced cell death. Over...

journal_title：Toxicology letters

authors： Inayat-Hussain SH,Wong LT,Chan KM,Rajab NF,Din LB,Harun R,Kizilors A,Saxena N,Mourtada-Maarabouni M,Farzaneh F,Williams GT

更新日期：2009-12-15 00:00:00

abstract：:Hexachlorobenzene (HCB) is an organochlorine pesticide widely distributed in the biosphere. ERalpha regulates the expression of genes involved in growth and development, and plays an important role in breast cancer. The present study focuses attention on the effect of HCB (0.005, 0.05, 0.5, 5 microM) on cell prolifera...

journal_title：Toxicology letters

authors： García MA,Peña D,Alvarez L,Cocca C,Pontillo C,Bergoc R,de Pisarev DK,Randi A

更新日期：2010-02-01 00:00:00

abstract：:Results of health survey and biological monitoring in pesticide formulators exposed to a combination of pesticides, an organophosphorus (OP) insecticide (phorate) and a persistent chlorinated insecticide (technical hexachlorocyclohexane; HCH; BHC) are reported. Exposure of 160 workers to a combination of pesticides (m...

journal_title：Toxicology letters

authors： Kashyap SK

更新日期：1986-10-01 00:00:00

abstract：:Administration of [14C]chlorferron in a single oral dose of 0.5 and 20 mg/kg body weight to female rats resulted in a urinary excretion of greater than 74% of the given dose during the first 24 h. Approx. 8% of the dose was eliminated in faeces within 7 days. 7 days after dosing, very low levels of [14C]chlorferron-de...

journal_title：Toxicology letters

authors： Malik JK,Lay JP,Klein W,Korte F

更新日期：1981-03-01 00:00:00

abstract：:Short-term exposure to elevated levels of particulate matter is associated with increased respiratory and cardiovascular mortality and morbidity. However, the mechanisms underlying these effects are still unclear. Recent studies have suggested that inhaled ultrafine particles are able to translocate into the bloodstre...

journal_title：Toxicology letters

authors： Nemmar A,Inuwa IM

更新日期：2008-01-04 00:00:00

abstract：:Identification of genetic polymorphisms responsible for reduced DNA repair capacity may allow better cancer prevention. We examined whether variations in genes involved in base-excision (hOGG1, XRCC1) and double strand break (XRCC3) DNA repair contribute to inter-individual differences in genotoxic effects induced in ...

journal_title：Toxicology letters

authors： Mateuca R,Aka PV,De Boeck M,Hauspie R,Kirsch-Volders M,Lison D

更新日期：2005-04-10 00:00:00

abstract：:Clinical study showed that smoking during pregnancy deceased the thymus size in newborns. However, the long-term effect remains unclear. This study was aimed to observe the effects of prenatal nicotine exposure (PNE) on the development of thymus and the T-lymphocyte subpopulation in mice offspring from the neonatal to...

journal_title：Toxicology letters

authors： Qu W,Zhao WH,Wen X,Yan HY,Liu HX,Hou LF,Ping J

更新日期：2019-04-01 00:00:00

abstract：:A low-Mr copper (Cu) and zinc (Zn)-binding protein was present in the liver of a control water lizard Triturus pyrrhogaster. Cadmium (Cd) accumulated in the liver of the animals after intramuscular injections of Cd salt and was bound to Cu- and Zn-binding protein of a single isoform that had properties characteristic ...

journal_title：Toxicology letters

authors： Suzuki KT,Akitomi H,Kawamura R

更新日期：1984-05-01 00:00:00

abstract：:Effects of intestinal damage on thyroid carcinogenesis due to amitrole (AT) were examined in F344 male rats initiated with N-bis(2-hydroxypropyl)nitrosamine (DHPN). In experiment 1, rats were provided with diet containing 0.03% AT for 20 weeks after a single subcutaneous injection of DHPN (2800 mg/kg body weight), and...

journal_title：Toxicology letters

authors： Imai T,Onose J,Hasumura M,Takizawa T,Hirose M

更新日期：2006-06-20 00:00:00

abstract：:The lethal effects of d-amphetamine and phencyclidine (PCP) were compared when adult male mice were placed into isolated or aggregated (12 mice/cage) conditions. The LD50 of d-amphetamine decreased approx. 30-fold between isolated (87.9 mg/kg) and aggregated (2.8 mg/kg) conditions. In contrast, PCP showed only a 1.3-f...

journal_title：Toxicology letters

authors： Landauer MR,Balster RL

更新日期：1982-07-01 00:00:00

abstract：:Heptachlor is a major component of the insecticide, chlordane. It is a health hazard but is still in use in some countries of Southeast Asia. To elucidate the toxicity of heptachlor its effects on mice after oral and intraperitoneal administration were studied. A 3-day group, 92-day group and 180-day group were given ...

journal_title：Toxicology letters

authors： Izushi F,Ogata M

更新日期：1990-11-01 00:00:00

abstract：:Serum corticosterone levels were determined at intervals after i.p. injection of 1.8 mg cadmium (Cd)/kg body weight. Thymus weight decreased significantly 3 days after injection. The effect of Cd injection on serum corticosterone levels was almost indistinguishable from that of saline injection. Further, Cd-induced th...

journal_title：Toxicology letters

authors： Yamada YK,Murakami N,Shimizu F,Kubota K

更新日期：1982-08-01 00:00:00

abstract：:In C57BL/6 mice, aryl hydrocarbon hydroxylase (AHH) increased 1 day after treatment with 3-methylcholanthrene, and induction of UDP-glucuronyl transferases for 3-hydroxybenzo(a)pyrene, p-nitrophenol and bilirubin in the liver microsomes was observed 2 to 5 days later. In DBA/2 mice, neither AHH nor transferase activit...

journal_title：Toxicology letters

authors： Nemoto N,Takayama S

更新日期：1980-01-01 00:00:00

abstract：:Butylated hydroxytoluene (BHT) was administered to mice, from 5 weeks of age of the F0 generation to the weaning of the F2 generation, in the diet at levels of 0 (control), 0.015, 0.045, 0.135, and 0.405%, and some reproductive and neurobehavioural parameters were measured. There was no consistent significant effect o...

journal_title：Toxicology letters

authors： Tanaka T,Oishi S,Takahashi O

更新日期：1993-03-01 00:00:00

abstract：:E-64d (a calpain and autophagy inhibitor) has previously been shown safe for the treatment of Alzheimer's disease in humans. In the present study, the potential protective mechanism of E-64d on hippocampal aberrant mossy fiber sprouting was examined in a developmental rat model of penicillin-induced recurrent epilepti...

journal_title：Toxicology letters

authors： Ni H,Ren SY,Zhang LL,Sun Q,Tian T,Feng X

更新日期：2013-02-27 00:00:00

abstract：:The chromosome damage induced by carboplatin (CBDCA) was evaluated in vitro. In human lymphocytes 5 micrograms/ml CBDCA produced a 7-fold increase in the frequency of sister chromatid exchanges (SCE) and a 3-fold increase in the number of cells with structural abnormalities compared with the control. Likewise, at this...

journal_title：Toxicology letters

authors： González Cid M,Mudry M,Larripa I

更新日期：1995-03-01 00:00:00

abstract：:New metabolites of styrene, three isomeric vinylphenylmercapturic acids (2-, 3-, and 4-VPMA), were recently identified by LC-ESI-MS in the urine of mice. In this study, 4-VPMA together with traces of 2- and 3-VPMA were found also in the urine of hand-lamination workers, which were exposed to styrene vapours at concent...

journal_title：Toxicology letters

authors： Linhart I,Mráz J,Dabrowská L,Mališ M,Krouželka J,Kořínek M

更新日期：2012-09-03 00:00:00

abstract：:Ochratoxin A (OTA) is one of the most frequent mycotoxins detected in human blood worldwide. Apart from its well known nephrotoxicity, OTA-induced teratogenicity and carcinogenicity proven in animals are potential effects also in humans. Pregnant women have been exposed to this food contaminant via dietary exposure in...

journal_title：Toxicology letters

authors： Woo CS,Partanen H,Myllynen P,Vähäkangas K,El-Nezami H

更新日期：2012-01-05 00:00:00

abstract：:In 2001 the SCOOP (SCOOP: Scientific Co-operation on Questions relating to Food) task 3.2.10 "Collection of occurrence data of Fusarium toxins in food and assessment of dietary intake by the population of EU Member States" was established. The task was divided in three subtasks (zearalenone, fumonisins and trichothece...

journal_title：Toxicology letters

authors： Schothorst RC,van Egmond HP

更新日期：2004-10-10 00:00:00

abstract：:This paper compares two methods for global optimization of physiologically based toxicokinetic models: Monte Carlo optimization, which searches randomly for the optimum; and the simplex method, which updates systematically an array of parameter values. Two measures of goodness-of-fit are also contrasted: criterion fun...

journal_title：Toxicology letters

authors： Woodruff TJ,Bois FY

更新日期：1993-08-01 00:00:00

abstract：:Male C57B1/6N mice, 8-10 weeks old were given a single oral dose of 0, 1.0 or 3.0 mg/kg body weight of trimethyltin hydroxide (TMT). Levels of ornithine decarboxylase (ODC) activity were measured in several brain areas, 1, 2 and 7 days later. The lower dose of TMT produced a decrease of ODC in the caudate nucleus and ...

journal_title：Toxicology letters

authors： Ali SF,Newport GD,Slikker W Jr,Bondy SC

更新日期：1987-03-01 00:00:00

abstract：:One of the major side effects of aminoglycoside antibiotics (AG) is ototoxicity. The authors review the literature revealing many controversies on every aspect of this side-effect. Although epidemiological studies have to face the problem of reliable evaluation techniques, the incidence of cochleo- and vestibulotoxic ...

journal_title：Toxicology letters

authors： Govaerts PJ,Claes J,van de Heyning PH,Jorens PG,Marquet J,De Broe ME

更新日期：1990-08-01 00:00:00

abstract：:Intraperitoneal (i.p.) and intravenous (i.v.) injection of 44Ti in a chloride solution into mice produced no detectable translocation in body fluids. There was no obvious interorgan exchange up to 16 days after injection. The whole body biological retention half-lives had a mean of 642 days for both routes, another in...

journal_title：Toxicology letters

authors： Thomas RG,Archuleta RF

更新日期：1980-07-01 00:00:00

abstract：:Iodinated contrast media (CM) can induce apoptosis and necrosis of renal tubular cells. The injuries of endothelial cells induced by CM on the systemic condition have not been fully understood. To assess the toxic effects of non-ionic CM on the glomerular and aortic endothelial cells, iopromide and iodixanol, two kind...

journal_title：Toxicology letters

authors： Zhao Y,Tao Z,Xu Z,Tao Z,Chen B,Wang L,Li C,Chen L,Jia Q,Jia E,Zhu T,Yang Z

更新日期：2011-05-10 00:00:00