Abstract：
:Chemical formation of dichlorvos (2, 2-dichlorovinyl dimethyl phosphate) was found to occur in mouse brain after i.p. injection of metrifonate (2, 2, 2-trichloro-1-hydroxyethyl dimethyl phosphonate). A mass fragmentographic technique was used. Different isotopic variants were used both as internal standards and to compensate for dichlorvos formed during the workup procedure. The dichlorvos formed in vivo was found to have its maximal concentration a few minutes after the maximum of the metrifonate itself. The effect of metrifonate and dichlorvos on acetylcholine levels, acetylcholinesterase activity and synthesis rate of acetylcholine in mouse brain was also studied. In all three cases the effect of metrifonate was found to be prolonged and delayed as compared to the effect of dichlorvos. It is concluded that metrifonate acts as a slow release formulation in the body giving rise to dichlorvos nonenzymatically. This circumstance at least partly explains its efficacy in the treatment of schistosomiasis.
journal_name
Arch Toxicoljournal_title
Archives of toxicologyauthors
Nordgren I,Bergström M,Holmstedt B,Sandoz Mdoi
10.1007/BF00351767subject
Has Abstractpub_date
1978-10-13 00:00:00pages
31-41issue
1eissn
0340-5761issn
1432-0738journal_volume
41pub_type
杂志文章abstract：:O,O,S-Trimethyl phosphorothioate (OOS-TMP) is known to induce unique symptoms, which are characterized by hypophagia, progressive weight loss, and hypothermia. To determine whether there is the possibility of a causal relationship between these toxic symptoms and a direct action of OOS-TMP on the central nervous syste...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s002040050212
更新日期：1995-01-01 00:00:00
abstract：:The metabolic fate of 2-ethylhexyl diphenyl phosphate (EHDPP) was studied in male rats. Orally administered 14C-EHDPP was rapidly absorbed and about 80% of the radioactivity was excreted in the urine and feces in the first 24 h. By 7 days, 48% and 52% of the radioactivity was recovered in urine and feces, respectively...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/BF00364847
更新日期：1988-01-01 00:00:00
abstract：:Ethylenediaminetetraacetic acid (EDTA) is widely used in food and other industries to sequester metal ions and to prevent their disadvantageous effects. The objective of the current study was to evaluate the protective effect of Panax ginseng extract standardized with ginsenoside Rg3 (ginsenoside Rg3 content was 3.6% ...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s00204-007-0237-y
更新日期：2008-03-01 00:00:00
abstract：:Aspergillus versicolor and A. flavus are primary colonizers in damp dwellings, and they produce sterigmatocystin (ST) and aflatoxin B1 (AFB(1)), respectively. These hepatotoxic and carcinogenic mycotoxins and their precursors and derivates possess a furofuran ring, which has proven responsible for their toxicity. The ...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s00204-012-0871-x
更新日期：2012-10-01 00:00:00
abstract：:A recent intervention study demonstrated the occurrence of irilone as second most abundant isoflavone next to daidzein in human plasma after consumption of a red clover-based dietary supplement (RCDS) containing predominately formononetin ≫ biochanin A > irilone (12 % of these isoflavones). To elucidate the relevance ...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s00204-013-1114-5
更新日期：2014-02-01 00:00:00
abstract：:Phenobarbital pretreatment (50 mg/kg/day for 3 days orally) of male Wistar rats increased Vmax of benzene in vitro hepatic microsomal biotransformation about 6-fold without changing Km. However, benzene blood levels after oral, intraperitoneal, or subcutaneous benzene administration (3-3.5 mmoles/kg) were not influenc...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/BF00293567
更新日期：1976-06-08 00:00:00
abstract：:Concerning molecular and cellular mechanisms of aluminum toxicity, recent studies support the hypothesis that interactions of aluminum ions with elements of signal transduction pathways are apparently primary events in cells. In the case of the phosphoinositide-associated signalling pathway of neuroblastoma cells, gua...
journal_title：Archives of toxicology
pub_type： 杂志文章,评审
doi：10.1007/s002040050023
更新日期：1994-01-01 00:00:00
abstract：:Sodium diethyldithiocarbamate (DETC) is the main metabolite of disulfiram. Recently, we reported that mechanism of disulfiram cytotoxicity in V79 cells might be partially connected with thiol redox-state imbalance. Here, we examined the effect of DETC on the level of intracellular glutathione (GSH), protein oxidation ...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s00204-012-0909-0
更新日期：2012-12-01 00:00:00
abstract：:We investigated the influence of the dopamine antagonist haloperidol on the neurotransmitter content in the developing rat brain. Dopamine (DA), serotonin (5-HT) and the corresponding metabolites dopac, HVA and HIAA were determined in the corpus striatum of the rat between day 1 and day 21 pn by HPLC with electro-chem...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/BF01973388
更新日期：1992-01-01 00:00:00
abstract：:Clark 1 (diphenylarsine chloride) and Clark 2 (diphenylarsine cyanide) were used as chemical weapon agents (CWA), and the soil contamination by these CWA and their degraded products, diphenyl and phenyl arsenicals, has been one of the most serious environmental issues. In a series of comparisons in toxicity between tr...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s00204-004-0598-4
更新日期：2005-01-01 00:00:00
abstract：:Chronic exposure to inorganic arsenic (As) [As(III) + As(V)], which affects millions of people, increases the incidence of some kinds of cancer and other non-carcinogenic pathologies. Although the oral pathway is the main form of exposure, in vivo studies have not been conducted to verify the intestinal toxicity of th...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s00204-019-02510-w
更新日期：2019-08-01 00:00:00
abstract：:Cadmium-induced metallothionein (MT) synthesis was investigated in male rats of three ages, 3, 12 and 24 months. Physiological levels of MT in kidney, liver and lung measured simultaneously in untreated animals were found to be within the same range in all three age groups. Following 3-day treatment with CdCl2 equival...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/BF00293629
更新日期：1988-01-01 00:00:00
abstract：:Carbon tetrachloride-induced liver injury is a thoroughly studied model for regeneration and fibrosis in rodents. Nevertheless, its pattern of liver fibrosis is frequently misinterpreted as portal type. To clarify this, we show that collagen type IV+ "streets" and α-SMA+ cells accumulate pericentrally and extend to ne...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s00204-017-2040-8
更新日期：2017-11-01 00:00:00
abstract：:Perfluorononanoic acid (PFNA) and perfluorodecanoic acid (PFDA), which are classified as perfluoroalkyl and polyfluoroalkyl substances (PFASs), have been widely used in industrial applications as a surface protectant. PFASs have been detected in wildlife and in humans around the globe. The purposes of this study are t...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s00204-018-2365-y
更新日期：2019-02-01 00:00:00
abstract：:Quinolone-induced arthropathy is probably caused by a lack of functionally available magnesium in immature joint cartilage. We used an in vitro assay to study the effects of fluoroquinolones on cartilage formation in mouse limb buds from 12-day-old mouse embryos in regular and in magnesium-deficient medium. Omission o...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s002040050521
更新日期：1998-06-01 00:00:00
abstract：:Inhalation exposure to toluene diisocyanate (TDI) can result in a variety of airway diseases. Concern has been expressed that a putative carcinogenic potential of TDI exists as a result of the formation of toluenediamine (TDA) by hydrolysis of the isocyanate in the body. Results from long-term bioassays (TDI inhalatio...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s002040050094
更新日期：1994-01-01 00:00:00
abstract：:The first step in the oxidative metabolism of cocaine is N-demethylation to norcocaine, which is further N-hydroxylated to more toxic N-hydroxynorcocaine. In this study we examined the kinetics of norcocaine N-hydroxylation mediated by cytochrome P450 (CYP) in mouse and human liver microsomes. N-hydroxynorcocaine was ...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s002040000154
更新日期：2000-11-01 00:00:00
abstract：:Ochratoxin A (OTA) is a toxin produced by fungi such as Aspergillus spp. and Penicillium spp. The key target organ of OTA toxicity is the kidney, and it is known that epithelial-to-mesenchymal transition (EMT) leading to fibrosis is enhanced after long-term exposure of the kidney to OTA. However, the mechanisms respon...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s00204-020-02829-9
更新日期：2020-09-01 00:00:00
abstract：:The toxic effect of cyclophosphamide on the proliferative cell population of hair follicles plucked from the human scalp was examined by the in vivo nuclear aberration assay. Patients participating in an independent clinical trial received oral low dose cyclophosphamide, intravenous high dose cyclophosphamide or oral ...
journal_title：Archives of toxicology
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1007/BF01974396
更新日期：1990-01-01 00:00:00
abstract：:Natural and synthetic chemicals are often used in the fragrance industry. A toxicological profile of the synthetic fragrance booster, 4-cycloocten-1-carbaldehyde, was generated using a test program including the following methods: acute oral toxicity, acute dermal toxicity, acute skin and eye irritation, skin sensitiz...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s00204-004-0596-6
更新日期：2004-12-01 00:00:00
abstract：:The mycotoxins altertoxin I and II (ATX I and II) are secondary metabolites produced by Alternaria alternata fungi and may occur as food and feed contaminants, especially after long storage periods. Although the toxic potential of altertoxins has been previously investigated, little is known about the pathways that pl...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s00204-016-1726-7
更新日期：2017-01-01 00:00:00
abstract：:Delta 9-THC at the dose of 1 mg/kg/die was administered subcutaneously in growing rats, from the second to the 30th day of life. A statistically significant myeloid hyperplasia was demonstrated, which persisted up to 4 months after the end of the treatment, together with significant blood granulocytosis. ...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/BF00353318
更新日期：1975-10-20 00:00:00
abstract：:Orally administered meso-2,3-dimercaptosuccinic acid (DMSA) is an effective antagonist for acute oral cadmium chloride (1 mmol/kg) intoxication in mice when administered up to 8 h after cadmium ingestion. Administration of sodium N-benzyl-N-dithiocarboxy-D-glucamine (NaB) i.p. along with DMSA p.o. resulted in kidney a...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/BF00316253
更新日期：1988-08-01 00:00:00
abstract：:Thanks to the confluence of genome sequencing and bioinformatics, the number of metabolic databases has expanded from a handful in the mid-1990s to several thousand today. These databases lie within distinct families that have common ancestry and common attributes. The main families are the MetaCyc, KEGG, Reactome, Mo...
journal_title：Archives of toxicology
pub_type： 杂志文章,评审
doi：10.1007/s00204-011-0705-2
更新日期：2011-09-01 00:00:00
abstract：:A recent study reported that exposure of student embalmers in Cincinnati to high concentrations of formaldehyde (2 mg/m3) reduced the activity of the DNA repair protein O6-methylguanine DNA methyltransferase (MGMT). Reduction in a DNA repair enzyme may strongly increase the cancer risk not only with respect to the rep...
journal_title：Archives of toxicology
pub_type： 临床试验,杂志文章,多中心研究
doi：10.1007/s002040050581
更新日期：1999-02-01 00:00:00
abstract：:The binding characteristics of [14C]ortho-toluidine (OT), a suspect human carcinogen, were investigated in male Sprague-Dawley rats. Rats were administered [14C]OT i.p. at 10, 20, 40, 50, or 100 mg/kg body weight, then sacrificed at 2, 4, 8, 18, 24, 48, or 72 h, or 7, 14, or 28 days. Hemoglobin (Hb) and albumin (Alb) ...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/BF02307167
更新日期：1992-01-01 00:00:00
abstract：:Sarin, a potent organophosphate cholinesterase inhibitor, induces an array of toxic effects including convulsions. Many antidotal treatments contain anticonvulsants to block seizure activity and the ensuing brain damage. Magnesium sulfate (MGS) is used to suppress eclamptic seizures in pregnant women with hypertension...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s00204-012-0916-1
更新日期：2013-02-01 00:00:00
abstract：:Xenobiotic induced liver injury is a leading cause for drug withdrawal and toxicogenomics may help to identify molecular causes. Here we report studies with cultures of human hepatocytes to detect early responses of liver toxicity upon treatment with the hepatotoxin Aroclor 1254. We studied transcript abundance of 302...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s00204-007-0234-1
更新日期：2008-02-01 00:00:00
abstract：:The routinely used analytical method for detecting the abuse of anabolic steroids only allows the detection of molecules with known analytical properties. In our supplementary approach to structure-independent detection, substances are identified by their biological activity. In the present study, urines excreted afte...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s00204-010-0590-0
更新日期：2011-04-01 00:00:00
abstract：:Genistein and daidzein are the main isoflavones in soy. Their potential beneficial or adverse effects in males like the prevention of prostate cancer or the impact on reproductive functions are controversially discussed. Major determinants of their bioactivity are the absorption and biotransformation of isoflavones. I...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s00204-016-1853-1
更新日期：2017-04-01 00:00:00
