Detection of delta-9-tetrahydrocannabinol in the organs of a suspected case of cannabis poisoning.

abstract：:A group of 20 female albino rats was exposed to mosquito coil smoke, 8 h a day, 6 days per week, for 60 days. An additional group receiving air exposure served as control. The smoke-exposed animals had a lower body weight than the controls. Smoke-induced histopathological lesions, including an inflammation of the trac...

journal_title：Toxicology letters

authors： Liu WK,Wong MH

更新日期：1987-12-01 00:00:00

abstract：:Human saliva offers a unique noninvasive approach for populational study. Purposes of this study were to investigate the feasibility of using saliva manganese (Mn) concentration as a biomarker of Mn exposure among career welders and to study the variations of Mn, copper (Cu), zinc (Zn), cadmium (Cd), and lead (Pb) in ...

journal_title：Toxicology letters

authors： Wang D,Du X,Zheng W

更新日期：2008-01-04 00:00:00

abstract：:As a main clinical feature of obstructive sleep apnea (OSA), intermittent hypoxia (IH) induces oxidative stress, leading to damage to a variety of organs, including kidney. Metallothionein (MT) is a potent antioxidant that protects kidney against oxidative damage. Our previous studies demonstrated that MT prevented IH...

journal_title：Toxicology letters

authors： Wu H,Zhou S,Kong L,Chen J,Feng W,Cai J,Miao L,Tan Y

更新日期：2015-01-22 00:00:00

abstract：:Chemical-induced carcinogenesis has been in the focus of toxicological research for many decades. However, the mechanisms leading to tumor formation are only understood with certain substances. The intake of potential carcinogens by inhalation is a major route of exposure. Chemical-induced lung tumors are the final ma...

journal_title：Toxicology letters

authors： Emmendoerffer A,Hecht M,Boeker T,Mueller M,Heinrich U

更新日期：2000-03-15 00:00:00

abstract：:The skin is an immunologically active tissue. Epidermal cells, both keratinocytes and Langerhans cells (LC), produce constitutively or can be stimulated to produce a variety of cytokines, many of which play important roles in the induction and regulation of allergic responses to sensitizing chemicals. Tumor necrosis f...

journal_title：Toxicology letters

authors： Kimber I,Holliday MR,Dearman RJ

更新日期：1995-12-01 00:00:00

abstract：:In humans organophosphorothionate pesticides (OPT) prenatal exposure has been demonstrated. Since OPT-induced neurodevelopmental effects may be due to in situ bioactivation by foetal enzymes, the catalytic activity of the foetal CYP3A7 toward chlorpyrifos (CPF), parathion (PAR), malathion (MAL) and fenthion (FEN) has ...

journal_title：Toxicology letters

authors： Buratti FM,Leoni C,Testai E

更新日期：2006-12-15 00:00:00

abstract：:The molecular basis of the interindividual differences of normal individuals to ionizing radiation is poorly understood. Several studies in telomerase KO mice with short telomeres have uncovered an inverse relationship between telomere length and radiation sensitivity. The present work aims to determine if chromosome ...

journal_title：Toxicology letters

authors： Castella M,Puerto S,Creus A,Marcos R,Surralles J

更新日期：2007-07-30 00:00:00

abstract：:The distribution of mercury to the brain following an injection of methylmercury (MeHg) or ethylmercury (EtHg) was examined in immature mice. Postnatal day (PND) 16 CD1 mice received MeHg chloride either by IM injection or by gavage. At 24 h and 7 days post-injection, total mercury concentrations were determined in bl...

journal_title：Toxicology letters

authors： Harry GJ,Harris MW,Burka LT

更新日期：2004-12-30 00:00:00

abstract：:Shikonin, a natural red colorant, is widely used for food garnishment and cosmetic ingredient in the world. Shikonin also possesses a variety of pharmacological actions, including anti-inflammation and anti-cancer activities. However, little is known about its effects on the UDP-glucuronosyltransferases (UGT) activity...

journal_title：Toxicology letters

authors： Cheng Y,Tang S,Chen A,Zhang Y,Liu M,Wang X

更新日期：2019-09-15 00:00:00

abstract：:The E-rosetting profiles of T-cells were studied in 47 subjects with a history of poly-drug and alcohol abuse, and compared with 15 normal controls. No change was evident in numbers of total rosette-forming cells (TRFC). However, there was reduction in active and high-affinity rosette-forming cells (ARFC and HARFC). T...

journal_title：Toxicology letters

authors： Nair BS,Erickson JR,Pillai R,Estrada A,Watson RR

更新日期：1991-08-01 00:00:00

abstract：:Changes in the activities of antioxidant enzymes superoxide dismutase, catalase (CAT), glutathione peroxidase and heme oxygenase (HO) and changes in lipid peroxidation and reduced glutathione (GSH) levels were measured in the livers of control and Lewis lung carcinoma (LLC)-bearing mice 24 h after a single injection o...

journal_title：Toxicology letters

authors： Christova TY,Gorneva GA,Taxirov SI,Duridanova DB,Setchenska MS

更新日期：2003-03-03 00:00:00

abstract：:Over the last twenty years research has provided an important insight into the mechanisms responsible for the immunotoxicity of both local and systemic adverse reactions following the use of immunostimulating drugs and adjuvants. In this article we provide an update of the present knowledge relating to the various par...

journal_title：Toxicology letters

authors： Batista-Duharte A,Lindblad EB,Oviedo-Orta E

更新日期：2011-06-10 00:00:00

abstract：:Male Swiss Webster mice were given an intravenous dose of 50 mg/kg, or an oral gavage dose of 5, 50 or 500 mg/kg [1, 2-(14)C]-ethylenediamine dihydrochloride, and its fate was followed for 48 h. Ethylenediamine (EDA) was readily absorbed from the gut (bioavailability, 87% measured at 50 mg/kg). Absorption was rapid as...

journal_title：Toxicology letters

authors： Leung HW

更新日期：2000-09-30 00:00:00

abstract：:Metallothionein (MT) is a low-molecular-weight and sulfur-rich protein that is induced by not only heavy metals but also physiological stresses such as fasting and restraint stresses. Although MT plays a role as a radical scavenger and a regulator of metabolism of metals, the biological function of MT induced by fasti...

journal_title：Toxicology letters

authors： Kondoh M,Kamada K,Kuronaga M,Higashimoto M,Takiguchi M,Watanabe Y,Sato M

更新日期：2003-08-28 00:00:00

abstract：:The effect of different doses of methylglyoxal (50-400 mg/kg body wt.) were examined using enzymes involved in the antioxidant function, glutathione (GSH) content and lipid peroxidation in the liver and spleen of Swiss albino mice (7-8 week old) after 6, 12 and 24 h. Significant changes were observed predominantly in ...

journal_title：Toxicology letters

authors： Choudhary D,Chandra D,Kale RK

更新日期：1997-12-01 00:00:00

abstract：:We have previously shown that rituximab has a significant radiosensitizing effect on Raji cells in vitro. To investigate whether calcium signals participate in rituximab- and radiation-induced cell death in Raji cells, confocal laser scanning microscopy was used to detect kinetic changes in intracellular free calcium ...

journal_title：Toxicology letters

authors： Fengling M,Qingxiang G,Lijia Z,Wei Z

更新日期：2012-03-25 00:00:00

abstract：:In male Sprague-Dawley rats, motor and sensory conduction velocities (MNCV and SNCV) of the tail nerve decreased significantly as a result of oral administration of 400 and 200 mg/kg of 2,5 hexanedione (2,5-HD) once daily, 5 days a week for up to 7 and 15 weeks, respectively; and of whole-body exposure to 300 ppm of v...

journal_title：Toxicology letters

authors： Gagnaire F,Nicot T,Zissu D,Bonnet P,de Ceaurriz J

更新日期：1986-01-01 00:00:00

abstract：BACKGROUND:GAPDH, well known for its house-keeping functions, has also been shown to be involved in cell injury, apoptosis and death under conditions of stress such as starvation, chemical injury and oxidative stress. This study examines the effect of GAPDH knockdown on cell injury in response to Rotenone. METHODS:GAP...

journal_title：Toxicology letters

authors： Liang S,Figtree G,Aiqun M,Ping Z

更新日期：2015-05-05 00:00:00

abstract：:The involvement of neurotrophins after radiation injury during brain development were studied in pregnant mice (C 57/B1) exposed on gestation day 15 to X-ray doses of 0.02-2 Gy. Nerve growth factor protein (NGF) and different cholinergic markers were investigated on postnatal day 1 (P1) and day 21 (P21); in situ hybri...

journal_title：Toxicology letters

authors： Dimberg Y,Vazquez M,Söderström S,Ebendal T

更新日期：1997-01-15 00:00:00

abstract：:Colistin is a polypeptide antibiotic that effectively treats infections caused by multidrug-resistant Gram-negative bacteria, but its clinical use is limited due to nephrotoxicity. The purpose of the present study was to identify biomarkers of colistin-induced nephrotoxicity and to further characterize the mechanisms ...

journal_title：Toxicology letters

authors： Jeong ES,Kim G,Moon KS,Kim YB,Oh JH,Kim HS,Jeong J,Shin JG,Kim DH

更新日期：2016-04-25 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：:Betel quid chewing, which contributes high concentration of safrole in saliva, is a popular oral habit in Taiwan. Safrole is a documented rodent hepatocarcinogen, yet its hepatocarcinogenic potential in human is not known. Here, we used LC/ESI-ITMS(n) and LC/QTOF-MS confirmed safrole-dGMP as reference standard to dete...

journal_title：Toxicology letters

authors： Chung YT,Chen CL,Wu CC,Chan SA,Chi CW,Liu TY

更新日期：2008-12-15 00:00:00

abstract：:Eugenol, a natural phenolic constituent of clove oil, has a wide range of applications in medicine as a local antiseptic and anesthetic. However, the effect of eugenol on human glioblastoma is unclear. This study examined whether eugenol elevated intracellular free Ca(2+) levels ([Ca(2+)]i) and induced apoptosis in DB...

journal_title：Toxicology letters

authors： Liang WZ,Chou CT,Hsu SS,Liao WC,Shieh P,Kuo DH,Tseng HW,Kuo CC,Jan CR

更新日期：2015-01-05 00:00:00

abstract：:Mice given single i.v. doses of some radiopharmaceuticals containing stannous chloride as a reducing agent, showed significant inhibition of hepatic azo-reductase and aromatic hydroxylase activity at dose levels which contained as little as 0.2 mg/kg of stannous chloride. Cytochrome P-450 content was also reduced sign...

journal_title：Toxicology letters

authors： Burba JV

更新日期：1983-09-01 00:00:00

abstract：:The effect of feeding a diet containing 5% tansy ragwort (TR) (Senecio jacobaea), a poisonous plant containing pyrrolizidine alkaloids (PA), on the blood and liver levels of copper, zinc, iron and vitamin A in broiler chicks was examined. Serum and liver copper and liver iron concentrations were increased in chicks fe...

journal_title：Toxicology letters

authors： Huan J,Cheeke PR,Lowry RR,Nakaue HS,Snyder SP,Whanger PD

更新日期：1992-09-01 00:00:00

abstract：:Methylmercury (MeHg) is an environmental toxicant, while mercuric sulfide (HgS) is a main active component of cinnabar, a Chinese mineral medicine used as a sedative. Because the neurotoxicological effects of HgS were not clearly understood, in this study, we attempted to compare HgS with MeHg in various physiological...

journal_title：Toxicology letters

authors： Chuu JJ,Liu SH,Lin-Shiau SY

更新日期：2007-03-08 00:00:00

abstract：:Saikosaponin-d (SSd), one of the main constituents of the total saikosaponins extracted from Bupleurum falcatum L, possesses anti-inflammatory and anti-apoptosis effect. Recently, SSd was proved to improve depressive symptoms although exhibit hepatotoxicity in animals, but the central nervous system (CNS) toxicity of ...

journal_title：Toxicology letters

authors： Lixing X,Zhouye J,Liting G,Ruyi Z,Rong Q,Shiping M

更新日期：2018-03-01 00:00:00

abstract：:Children may be inherently more vulnerable than adults to the lethal effects associated with chemical warfare nerve agent (CWNA) exposure because of their closer proximity to the ground, smaller body mass, higher respiratory rate, increased skin permeability and immature metabolic systems. Unfortunately, there have on...

journal_title：Toxicology letters

authors： Wright LK,Lee RB,Vincelli NM,Whalley CE,Lumley LA

更新日期：2016-01-22 00:00:00

abstract：:The aim of the current HBM-study is to further the understanding of the impact of inter- and intra-individual variability in HBM surveys as it may have implications for the design and interpretation of the study outcomes. As spot samples only provide a snapshot in time of the concentrations of chemicals in an individu...

journal_title：Toxicology letters

authors： Smolders R,Koch HM,Moos RK,Cocker J,Jones K,Warren N,Levy L,Bevan R,Hays SM,Aylward LL

更新日期：2014-12-01 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