Inhibition Mechanisms of Mitochondrial Permeability Transition by 4-Hydroxytamoxifen: Protection of NAD(P)H and Thiol Group Oxidation.

abstract：:The present study was designed to investigate the effects of aqueous Azadirchta Indica leaf extract (AAILE) on serum glycoprotein contents and tumor incidence rate in colon of rats subjected to Dimethylhydrazine (DMH) treatment. Forty rats were divided equally and randomly into four groups viz., Group I (normal contro...

journal_title：Toxicology mechanisms and methods

authors： Ramzanighara A,Ezzatighadi F,Rai DV,Dhawan DK

更新日期：2009-05-01 00:00:00

abstract：:The authors have previously shown that high alcohol preference rats (HAP) have a significantly higher sensitivity than low alcohol preference rats (LAP) for methamphetamine (MAP). In this study, changes in dopamine and serotonin release induced by MAP (1 mg/kg, intraperitoneally) after pre-treatment with D1 and D2 rec...

journal_title：Toxicology mechanisms and methods

authors： Nishiguchi M,Kinoshita H,Kasuda S,Takahashi M,Yamamura T,Matsui K,Ouchi H,Minami T,Hishida S,Nishio H

更新日期：2010-03-01 00:00:00

abstract：:The effects of chlorpyrifos and fenvalerate on the activity of the cellulase, superoxide dismutase (SOD) and catalase (CAT) of the earthworm (Eisenia foetida) were studied. Earthworms were exposed to chlorpyrifos and fenvalerate at a final concentration of 10, 20, and 40 mg/kg dry soil, respectively. Tissues from each...

journal_title：Toxicology mechanisms and methods

authors： Wang JH,Zhu LS,Liu W,Wang J,Xie H

更新日期：2012-04-01 00:00:00

abstract：:Silver and gold nanoparticles (Ag-AuNPs) are currently some of the most manufactured nanomaterials. Accordingly, the hazards associated with human exposure to Ag-AuNPs should be investigated to facilitate the risk assessment process. In particular, because pulmonary exposure to Ag-AuNPs occurs during handling of these...

journal_title：Toxicology mechanisms and methods

authors： Ávalos A,Haza AI,Mateo D,Morales P

更新日期：2015-01-01 00:00:00

abstract：:ABSTRACT The effect of sodium selenite, alpha-tocopherol, and their combination was studied in the hemic system of goat. Incubation of goat blood with selenium and vitamin E for 24 h resulted in a decrease in hemoglobin concentrations in Se-and vitamin E-treated groups, whereas no change in the osmotic fragility was o...

journal_title：Toxicology mechanisms and methods

authors： Saini RK,Saini N,Kataria M,Babu S

更新日期：2007-01-01 00:00:00

abstract：:Ethanol metabolism induces generation of excessive amount of reactive oxygen species (ROS) which results in immune dysfunction. We examined the efficacy of silymarin on ethanol-induced oxidative stress, immunomodulatory activity, and vascular function in mice blood. Effectiveness of silymarin was compared with potent ...

journal_title：Toxicology mechanisms and methods

authors： Das SK,Mukherjee S

更新日期：2012-06-01 00:00:00

abstract：:Ethanol metabolism is accompanied by generation of free radicals that damage cell components, especially lipids. The present study was designed to investigate the efficacy of the preventive effect of black tea on the lipid oxidative modifications in different tissues (plasma, liver, brain, kidney, stomach, lung, intes...

journal_title：Toxicology mechanisms and methods

authors： Luczaj W,Welerowicz T,Skrzydlewska E,Buszewski B

更新日期：2008-07-01 00:00:00

abstract：:The B6C3F1 mouse is the standard mouse strain used in National Toxicology Program (NTP) carcinogenesis studies. Over time, increased liver tumorigenesis that was correlated with elevated body weights was noted in males and females. NTP therefore replaced the NIH-07 diet with the NTP-2000 diet and returned to group hou...

journal_title：Toxicology mechanisms and methods

authors： Marino DJ

更新日期：2012-07-01 00:00:00

abstract：:Misuse of various chemicals, such as chemical warfare agents, industrial chemicals or pesticides during warfare or terrorists attacks requires adequate protection. Thus, development and evaluation of novel decontamination dispositives and techniques are needed. In this study, in vitro permeation and decontamination of...

journal_title：Toxicology mechanisms and methods

authors： Misik J,Pavlikova R,Josse D,Cabal J,Kuca K

更新日期：2012-09-01 00:00:00

abstract：:Hydroquinone (HQ), one of the most important metabolites derived from benzene, is known to be associated with acute myelogenous leukemia risk; however, its carcinogenic mechanism remains unclear. In a previous study, we found that low-level of benzene exposure down-regulated the expression of poly(ADP-ribose)polymeras...

journal_title：Toxicology mechanisms and methods

authors： Sha Y,Zhou W,Yang Z,Zhu X,Yang X,Li TD,Zhu D

更新日期：2015-01-01 00:00:00

abstract：:In recent years, diabetes and its associated complications have come to represent a major public health concern. It is a complex disease characterized by multiple metabolic derangements and is known to impair cardiac function by disrupting the balance between pro-oxidants and antioxidants at the cellular level. The su...

journal_title：Toxicology mechanisms and methods

authors： Selvaraju V,Joshi M,Suresh S,Sanchez JA,Maulik N,Maulik G

更新日期：2012-06-01 00:00:00

abstract：:This study applied broccoli and cauliflower extracts (whole, floret, and stem) to zebrafish larvae in parallel to receive 100 mJ/cm(2) of UVB six times, and recorded their fin malformation phenotypes. Chemopreventive effects of each group, including UVB, whole-, floret-, and stem-extracts of broccoli and cauliflower o...

journal_title：Toxicology mechanisms and methods

authors： Chen YH,Wen CC,Lin CY,Chou CY,Yang ZS,Wang YH

更新日期：2011-01-01 00:00:00

abstract：:The implications of delta-aminolevulinic acid dehydratase (ALAD) polymorphism for lead kinetics and toxicity have been mainly studied in occupationally exposed adults. Therefore, our purpose was to evaluate the distribution of ALAD genotype and its association with biomarkers of exposure (PbB levels) and effect (Blood...

journal_title：Toxicology mechanisms and methods

authors： Mijares IA,López P,Rosado JL,Cebrián A,Vera-Aguilar E,Alatorre J,Quintanilla-Vega MB,García AE,Stoltzfus RJ,Cebrián ME,García-Vargas GG

更新日期：2006-01-01 00:00:00

abstract：BACKGROUND:The potential toxicity resulting from the possible interactions of the herbicides, Ultrazin (atrazine, ATZ) and Bretmont Wipeout (glyphosate, GLY) (as commercialized in Nigeria), is not completely known. We therefore evaluated reproductive- and hepato-toxicity in rats co-exposed to ATZ and GLY. METHODS:Six ...

journal_title：Toxicology mechanisms and methods

authors： Abarikwu SO,Akiri OF,Durojaiye MA,Adenike A

更新日期：2015-01-01 00:00:00

abstract：:ABSTRACT Male Wistar rats with streptozotocin-induced diabetes received a control diet and a pyridoxine-deficient diet. The animals were divided at random into four groups: control rats (CR), control diabetic rats (CDR), diabetic rats receiving a pyridoxine-free diet (DRB6), and diabetic rats receiving saline solution...

journal_title：Toxicology mechanisms and methods

authors： Jordao AA,Dos Santos FL,Marchini JS,Vannucchi H

更新日期：2007-01-01 00:00:00

abstract：AIM:Nicotine exerts a number of physiological effects. The purpose of this study was to determine the effects of nicotine on thioacetamide (TAA)-induced liver fibrosis in mice. MATERIALS AND METHODS:For in vivo experiments, hepatic fibrosis was induced by TAA (0.25 g/kg, i.p.) three times a week for 6 weeks. Mice of T...

journal_title：Toxicology mechanisms and methods

authors： Zhou Z,Park S,Kim JW,Zhao J,Lee MY,Choi KC,Lim CW,Kim B

更新日期：2017-09-01 00:00:00

abstract：:ABSTRACT Although copper is an essential metal and cadmium is an environmental pollutant, both are toxic when present in excess. Metallothionein and glutathione are two of the key components that participate in detoxification of copper and cadmium. In the present study the role of glutathione in resistance to copper a...

journal_title：Toxicology mechanisms and methods

authors： Bi WX,Kong F,Hu XY,Cui X

更新日期：2007-01-01 00:00:00

abstract：:Preeclampsia is a multisystem disorder with profound implications on both mother and fetus. Analysis of umbilical cord blood red blood cell (RBC) changes shall depict the fetal response to pregnancy-specific complications like preeclampsia. This study aims to analyze the regulation relationship between HSP90α and heme...

journal_title：Toxicology mechanisms and methods

authors： Ekambaram P,Jayachandran T,Dhakshinamoorthy L

更新日期：2013-02-01 00:00:00

abstract：BACKGROUND:The anatomical and histological parameters of the human ventricle depend on many factors including age and sex. Myocyte volume and electric capacitance are significant physiological parameters of left ventricle cardiomyocyte mathematical models. They allow the assessment of inter-individual variability durin...

journal_title：Toxicology mechanisms and methods

authors： Polak S,Fijorek K,Glinka A,Wisniowska B,Mendyk A

更新日期：2012-01-01 00:00:00

abstract：:Renal disease is a common complication of diabetes mellitus. The pathogenesis of diabetic nephropathy is not well understood, but hyperglycemia seems to be a crucial factor. Recent evidence indicates that the overproduction of reactive oxygen species, observed in both clinical and experimental diabetes, and mitochondr...

journal_title：Toxicology mechanisms and methods

authors： Seiça R,Santos DL,Palmeira CM,Moreno AJ,Sena C,Cunha MF,Santos MS

更新日期：2005-01-01 00:00:00

abstract：:Angiogenesis, disturbance in redox homeostasis, and deregulated redox signaling are considered as common hallmarks of cancer progression and chemo resistance. In this context, PERK (protein kinase PKR-like ER kinase) branch of the unfolded protein response (UPR), an adaptive mechanism triggered by endoplasmic reticulu...

journal_title：Toxicology mechanisms and methods

authors： Sharma SH,Suresh Kumar J,Madhavan S,Nagarajan S

更新日期：2020-05-01 00:00:00

abstract：:The CD1-haired mouse and the SKH-hairless mouse are two animal models that have been used to evaluate sulfur mustard (HD) exposure and protection in our laboratory. In a recent study we observed that a substance P inhibitor protected the haired mouse ear against an HD solution, but the same drug was not successful in ...

journal_title：Toxicology mechanisms and methods

authors： Logan TP,Shutz M,Schulz SM,Railer R,Ricketts KM,Casillas RP

更新日期：2002-01-01 00:00:00

abstract：:The study aims at evaluating the combination of the quinocetone and the ML-7 in preclinical hepatocellular carcinoma models. To this end, the effect of quinocetone and ML-7 on apoptosis induction and signaling pathways was analyzed on HepG2 cell lines. Here, we report that ML-7, in a nontoxic concentration, sensitized...

journal_title：Toxicology mechanisms and methods

authors： Zhou Y,Zhang S,Deng S,Dai C,Tang S,Yang X,Li D,Zhao K,Xiao X

更新日期：2016-01-01 00:00:00

abstract：CONTEXT:Although the liver is the primary target organ in acetaminophen (APAP) toxicity, other organs are affected. Previous data suggested that chronic APAP abuse can be ototoxic and the mechanism involves APAP-induced oxidative stress and reactive metabolite (N-acetyl-p-benzoquinone imine, NAPQI)-induced endoplasmic ...

journal_title：Toxicology mechanisms and methods

authors： McGill MR,Kennon-McGill S,Durham D,Jaeschke H

更新日期：2016-02-01 00:00:00

abstract：:Ornithine decarboxylase (ODC) activity is used widely as a biomarker for tumor promotion in animal model systems. Several previous studies have reported increases in ODC activity in tissues of rats exposed to 60 Hz magnetic fields. The goals of this study were to confirm these findings and to determine whether ODC act...

journal_title：Toxicology mechanisms and methods

authors： McDonald LJ,Loberg LI,McCormick DL,Gauger JR,Savage RE Jr,Zhu H,Lotz WG,Mandeville R,Owen RD,Cress LW,Desta AB

更新日期：2003-01-01 00:00:00

abstract：:Impurities in drug substances and drug products generally do not have beneficial effects and may impose a risk without associated benefit. Levofloxacin n-oxide is an impurity isolated from levofloxacin. However there is insufficient toxic information about levofloxacin n-oxide. This study investigates the genotoxicity...

journal_title：Toxicology mechanisms and methods

authors： Zhu Q,Li T,Li J,Guo M,Wang W,Zhang X

更新日期：2012-04-01 00:00:00

abstract：:The present study was designed to investigate the effect of ginsenoside Rh1 on myocardial injury and heart function in isoproterenol-induced cardiotoxicity in rats. Sprague-Dawley rats were subcutaneously injected with isoproterenol (20 mg/kg). Cardiac marker enzymes in serum, antioxidative parameters and inflammatory...

journal_title：Toxicology mechanisms and methods

authors： Gai Y,Ma Z,Yu X,Qu S,Sui D

更新日期：2012-10-01 00:00:00

abstract：:The aim of this study was to evaluate the effects of different doses of an adenosine A(1) selective agonist, phenylisopropyl adenosine (PIA), on metamidophos-induced cholinergic symptoms, mortality, diaphragm muscle necrosis, and brain oxidative stress. A LD(50) dose of metamidophos (20 mg/kg body weight, p.o.) was fo...

journal_title：Toxicology mechanisms and methods

authors： Kalkan S,Ozdemir D,Ergur BU,Hazardin NU,Akgun A,Topcu A,Kaplan YC,Hocaoglu N,Oransay K,Tuncok Y

更新日期：2009-02-01 00:00:00

abstract：:Reported myocardial pathology resulting from increased levels of catecholamines in vivo has led us to investigate the effect of adrenalin on the gap junction proteins connexin 40 (Cx40) and Cx43 and the possible relationship to vascular toxicity. Adrenalin and its known metabolites, adrenochrome and adrenolutin, were ...

journal_title：Toxicology mechanisms and methods

authors： Moreau V,Novak MJ,Moore LK

更新日期：2006-01-01 00:00:00

abstract：:Chronic hyperglycemia leads to the development of microvascular complications like diabetic nephropathy. The present study investigated the potential effects of the hydroalcoholic extract of Tribulus terrestris, a plant of Zygophyllaceae family, on the renal complications in streptozotocin (STZ)-induced diabetic rats....

journal_title：Toxicology mechanisms and methods

authors： Gandhi S,Srinivasan BP,Akarte AS

更新日期：2013-09-01 00:00:00