4-Chlorotetrazolo[1,5-a]quinoxaline inhibits activation of Syk kinase to suppress mast cells in vitro and mast cell-mediated passive cutaneous anaphylaxis in mice.

abstract：:Polychlorinated biphenyl (PCB)126 and perfluorooctane sulfonic acid (PFOS) are halogenated organic pollutants of high concern. Exposure to these chemicals is ubiquitous, and can lead to potential synergistic adverse effects in individuals exposed to both classes of chemicals. The present study was designed to identify...

journal_title：Toxicology and applied pharmacology

authors： Deng P,Wang C,Wahlang B,Sexton T,Morris AJ,Hennig B

更新日期：2020-12-15 00:00:00

abstract：:Theoretical work has shown that the isobole method is not generally valid as a method for testing the absence or presence of interaction (in the biochemical sense) between chemicals. The present study illustrates how interaction can be tested by fitting a toxicodynamic model to the results of a mixture experiment. The...

journal_title：Toxicology and applied pharmacology

authors： Bosgra S,van Eijkeren JC,van der Schans MJ,Langenberg JP,Slob W

更新日期：2009-04-01 00:00:00

abstract：:This study defines a physiologically based kinetic (PBK) model for methyleugenol (ME) in human based on in vitro and in silico derived parameters. With the model obtained, bioactivation and detoxification of methyleugenol (ME) at different doses levels could be investigated. The outcomes of the current model were comp...

journal_title：Toxicology and applied pharmacology

authors： Al-Subeihi AA,Spenkelink B,Punt A,Boersma MG,van Bladeren PJ,Rietjens IM

更新日期：2012-05-01 00:00:00

abstract：:Hepatic expression of the proinflammatory cytokine tumor necrosis factor-alpha (TNFalpha) occurs in many acute and chronic liver diseases, as well as following exposure to hepatotoxic chemicals, and is believed to help influence both the damage and repair processes that occur following these insults by regulating addi...

journal_title：Toxicology and applied pharmacology

authors： Simeonova PP,Gallucci RM,Hulderman T,Wilson R,Kommineni C,Rao M,Luster MI

更新日期：2001-12-01 00:00:00

abstract：:Polychlorinated biphenyls (PCBs) are persistent organic pollutants that bioaccumulate in the body, however, they can be metabolized to more water-soluble products. Although they are more readily excreted than the parent compounds, some of the metabolites are still hydrophobic and may be more available to target tissue...

journal_title：Toxicology and applied pharmacology

authors： Dreiem A,Rykken S,Lehmler HJ,Robertson LW,Fonnum F

更新日期：2009-10-15 00:00:00

abstract：:We have previously shown that ricin, a toxic lectin from the castor bean, increases cardiac output and blood flow to the heart in rabbits in the early stage of its intoxication and causes hemorrhage and necrosis in the heart following a lethal dose. To investigate possible alterations in coronary arteries following ri...

journal_title：Toxicology and applied pharmacology

authors： Zhang L,Hsu CH,Robinson CP

更新日期：1994-11-01 00:00:00

abstract：:Cadmium chloride (CdCl2) at a dose of 1 mg/kg body wt was injected into male rats of the Wistar strain, weighing 250 g on the average, twice a day (12-hr intervals) for 7 consecutive days. DNA and RNA contents and [3H]-thymidine and [3H]-uridine incorporation into the acid-insoluble fraction significantly increased in...

journal_title：Toxicology and applied pharmacology

authors： Nishiyama S,Nakamura K

更新日期：1984-07-01 00:00:00

abstract：:The effect of cadmium injection on the high-affinity phlorizin binding to renal outer cortical brush-border membranes was studied in rabbits. Animals received subcutaneous injections of CdCl2 at a dose of 3 mg Cd/kg.day for about 3 weeks. Brush-border membranes were isolated from renal outer cortex by Percoll gradient...

journal_title：Toxicology and applied pharmacology

authors： Kim KR,Park YS

更新日期：1995-08-01 00:00:00

abstract：:The discovery of the cadmium (Cd)-binding protein from horse kidney in 1957 marked the birth of research on this low-molecular weight, cysteine-rich protein called metallothionein (MT) in Cd toxicology. MT plays minimal roles in the gastrointestinal absorption of Cd, but MT plays important roles in Cd retention in tis...

journal_title：Toxicology and applied pharmacology

authors： Klaassen CD,Liu J,Diwan BA

更新日期：2009-08-01 00:00:00

abstract：:Bisphenol A (BPA) is an important industrial chemical used in the manufacture of polycarbonate plastic products and epoxy resin-based food can liners. The presence of BPA metabolites in urine of >90% of Americans aged 6-60 suggests ubiquitous and frequent exposure in the range of 0.02-0.2μg/kgbw/d (25th-95th percentil...

journal_title：Toxicology and applied pharmacology

authors： Doerge DR,Twaddle NC,Vanlandingham M,Brown RP,Fisher JW

更新日期：2011-09-15 00:00:00

abstract：:The influence of the organophosphate, soman (pinacolyl methylphosphonofluoridate), on neuritic growth and substrate utilization by mammalian autonomic neural tissue was studied using explants of the rat superior cervical ganglion as a model. Soman produced a dose-dependent decrease in neuritic outgrowth from explants ...

journal_title：Toxicology and applied pharmacology

authors： Jerkins AA,Kauffman FC

更新日期：1984-09-15 00:00:00

abstract：:Carcinogenic chromium (VI) compounds are persistent environmental contaminants with potential for human exposure through drinking water. One lesion associated with chromium (VI) exposure is the formation of DNA-protein crosslinks (DPC). In an attempt to develop markers of chromium exposure, the formation of DPC in lym...

journal_title：Toxicology and applied pharmacology

authors： Coogan TP,Motz J,Snyder CA,Squibb KS,Costa M

更新日期：1991-06-01 00:00:00

abstract：:This study was undertaken to determine the ability of a series of 19 compounds representing different chemical classes of carcinogens to induce lung tumors in strain A/J mice after either ip or po administration. Aflatoxin B1, dibutylnitrosamine, 1,2-dimethylhydrazine, and methylnitrosourea induced a significant incre...

journal_title：Toxicology and applied pharmacology

authors： Stoner GD,Conran PB,Greisiger EA,Stober J,Morgan M,Pereira MA

更新日期：1986-01-01 00:00:00

abstract：:WHO has highlighted the need to evaluate dermal toxicity of mycotoxins including Patulin (PAT), detected in several fruits. In this study the skin carcinogenic potential of topically applied PAT was investigated. Single topical application of PAT (400 nmol) showed enhanced cell proliferation (~2 fold), along with incr...

journal_title：Toxicology and applied pharmacology

authors： Saxena N,Ansari KM,Kumar R,Chaudhari BP,Dwivedi PD,Das M

更新日期：2011-12-01 00:00:00

abstract：:The inflammasome is a multi-protein complex which when activated regulates caspase-1 activation and IL-1β and IL-18 secretion. The NLRP3 (NACHT, LRR, and pyrin domain-containing protein 3) inflammasome is constitutively assembled and activated in human melanoma cells. We have examined the inhibitory effect of thymoqui...

journal_title：Toxicology and applied pharmacology

authors： Ahmad I,Muneer KM,Tamimi IA,Chang ME,Ata MO,Yusuf N

更新日期：2013-07-01 00:00:00

abstract：:Therapeutic angiogenesis has been implicated in ischemic diseases and wound healing. Ginsenoside-Rg1 (Rg1), one of the most abundant active components of ginseng, has been demonstrated as an angiogenesis-stimulating compound in different models. There is increasing evidence implicating microRNAs (miRNAs), a group of n...

journal_title：Toxicology and applied pharmacology

authors： Kwok HH,Chan LS,Poon PY,Yue PY,Wong RN

更新日期：2015-09-15 00:00:00

abstract：:Previous studies performed in this laboratory have shown that certain benzo(a)pyrene (BaP) metabolites, such as benzo(a)pyrene-7,8-dihydrodiol (BaP-7,8-diol) and benzo(a)pyrene-7,8-dihydrodiol-9,10-epoxide (BPDE), were more effective in elevating intracellular Ca2+ in normal human peripheral blood mononuclear cell (HP...

journal_title：Toxicology and applied pharmacology

authors： Mounho BJ,Burchiel SW

更新日期：1998-03-01 00:00:00

abstract：:6-Hydroxy-trans,trans-2,4-hexadienal (CHO-M-OH) is a metabolite of trans,trans-muconaldehyde (muconaldehyde or MUC), a microsomal hematotoxic ring-opened metabolite of benzene. In the present study, the toxicity of CHO-M-OH was examined. In order to assess potential toxic effects of CHO-M-OH on the maturation of eryth...

journal_title：Toxicology and applied pharmacology

authors： Zhang Z,Schafer F,Schoenfeld H,Cooper K,Snyder R,Goldstein BD,Witz G

更新日期：1995-06-01 00:00:00

abstract：:A quantitative method based upon a stochastic model was used to estimate rates of initiation (alteration to express the ATPase-deficient phenotype) and of clonal growth of altered cells in an initiation promotion experiment in the livers of female Wistar rats. Diethylnitrosamine (DEN) was used as the initiating agent ...

journal_title：Toxicology and applied pharmacology

authors： Moolgavkar SH,Luebeck EG,Buchmann A,Bock KW

更新日期：1996-05-01 00:00:00

abstract：:Inorganic arsenic (iAs) is a known toxicant and carcinogen. Worldwide arsenic exposure has become a threat to human health. The severity of arsenic toxicity is strongly correlated with the speed of arsenic metabolism (methylation) and clearance. Furthermore, oxidative stress is recognized as a major mechanism for arse...

journal_title：Toxicology and applied pharmacology

authors： Wang H,Zhu J,Li L,Li Y,Lv H,Xu Y,Sun G,Pi J

更新日期：2017-12-15 00:00:00

abstract：:In vitro studies showed that 1-(propan-2-ylamino)-4-propoxy-9H-thioxanthen-9-one (TX5) increases P-glycoprotein (P-gp) expression and activity in Caco-2 cells, preventing xenobiotic toxicity. The present study aimed at investigating TX5 effects on P-gp expression/activity using Wistar Han rats: a) in vivo, evaluating ...

journal_title：Toxicology and applied pharmacology

authors： Rocha-Pereira C,Ghanem CI,Silva R,Casanova AG,Duarte-Araújo M,Gonçalves-Monteiro S,Sousa E,Bastos ML,Remião F

更新日期：2020-01-01 00:00:00

abstract：:In the evaluation of chemical mixture toxicity, it is desirable to develop an evaluation paradigm which incorporates some critical attributes of real world exposures, particularly low dose levels, larger numbers of chemicals, and chemicals from synthetic and natural sources. This study evaluated the impact of low leve...

journal_title：Toxicology and applied pharmacology

authors： Charles GD,Gennings C,Tornesi B,Kan HL,Zacharewski TR,Bhaskar Gollapudi B,Carney EW

更新日期：2007-02-01 00:00:00

abstract：:The Constitutive Androstane Receptor (CAR, NR1I3) has been newly described as a regulator of energy metabolism. A relevant number of studies using animal models of obesity suggest that CAR activation could be beneficial on the metabolic balance. However, this remains controversial and the underlying mechanisms are sti...

journal_title：Toxicology and applied pharmacology

authors： Marmugi A,Lukowicz C,Lasserre F,Montagner A,Polizzi A,Ducheix S,Goron A,Gamet-Payrastre L,Gerbal-Chaloin S,Pascussi JM,Moldes M,Pineau T,Guillou H,Mselli-Lakhal L

更新日期：2016-07-15 00:00:00

abstract：:Aromatase inhibitors like anastrozole play an undisputed key role in the treatment of breast cancer, but on the other hand, various side effects like osteoporosis and increased risk of bone fracture accompany the chronic administration of these drugs. Here we show for the first time that selenium nanoparticles, when g...

journal_title：Toxicology and applied pharmacology

authors： Vekariya KK,Kaur J,Tikoo K

更新日期：2013-04-15 00:00:00

abstract：:Triclosan (TCS) is an antimicrobial agent commonly found in a variety of personal care products and cosmetics. TCS readily enters the environment through wastewater and is detected in human plasma, urine, and breast milk due to its widespread use. Studies have implicated TCS as a disruptor of thyroid and estrogen sign...

journal_title：Toxicology and applied pharmacology

authors： Haggard DE,Noyes PD,Waters KM,Tanguay RL

更新日期：2016-10-01 00:00:00

abstract：:Chelating agents commonly used in therapy of heavy metal intoxication alter the levels of essential metals in liver, kidneys, and serum. Induction of metallothionein synthesis in liver occurs following exposure to a variety of chemical and environmental insults and, in some cases, has been attributed to enhanced hepat...

journal_title：Toxicology and applied pharmacology

authors： Goering PL,Tandon SK,Klaassen CD

更新日期：1985-09-30 00:00:00

abstract：:The ASCT2 transport system catalyses a sodium-dependent antiport of glutamine and other neutral amino acids which is involved in amino acid metabolism. A library of 1,2,3-dithiazoles was designed, synthesized and evaluated as inhibitors of the glutamine/amino acid ASCT2 transporter in the model system of proteoliposom...

journal_title：Toxicology and applied pharmacology

authors： Oppedisano F,Catto M,Koutentis PA,Nicolotti O,Pochini L,Koyioni M,Introcaso A,Michaelidou SS,Carotti A,Indiveri C

更新日期：2012-11-15 00:00:00

abstract：:Lead (Pb) depresses growth in infants and young children. Our earlier studies using a weanling rat model of Pb exposure suggest that this Pb effect is due to depression of appetite. In the present study we examined whether this depression of appetite is consistent with a down-regulation of the appetite "set point" as ...

journal_title：Toxicology and applied pharmacology

authors： Hammond PB,Minnema DJ,Shulka R

更新日期：1990-10-01 00:00:00

abstract：:Liver fibrosis results from chronic tissue damage and excessive regeneration with accumulation of extracellular matrix proteins; it is a precursor of liver cirrhosis and hepatocellular carcinoma. Liver fibrosis treatments are primarily directed at inflammation, with few options to combat fibrogenesis. Pirfenidone is a...

journal_title：Toxicology and applied pharmacology

authors： Seniutkin O,Furuya S,Luo YS,Cichocki JA,Fukushima H,Kato Y,Sugimoto H,Matsumoto T,Uehara T,Rusyn I

更新日期：2018-01-15 00:00:00

abstract：:Arsenic is a ubiquitous metalloid element present in both inorganic and organic forms in the environment. The liver is considered to be a primary organ of arsenic biotransformation and methylation, as well as the main target of arsenic toxicity. Studies have confirmed that Chang human hepatocytes have an efficient ars...

journal_title：Toxicology and applied pharmacology

authors： Liu D,Xu G,Bai C,Gu Y,Wang D,Li B

更新日期：2021-01-09 00:00:00