Abstract：
:A single dose of 10 mg methylmercury chloride per kg body weight was given to 30 days old rats and to adult rats (180-200g)(. This resulted in brain levels of 1.4-2.2 micrograms Hg/g wet weight. In the young rats electron microscopic morphometry showed swelling of the granule cells. The extent of changes was more pronounced in the cerebellar hemispheres than in the vermis and flocculus. At 7 days after giving the methylmercury the granule cells appeared to have returned to normal. Methylmercury produced both light and electron microscopic changes in cerebellar neurons of adult (180-200 g) rats 3 days after dosing. 2.5-10% of the granule cells appeared dark and condensed in toluidine blue stained semithin sections of perfusion fixed and plastic embedded material. In control animals the comparable percentage never exceeded 1. By electron microscopic morphometry the dark cells proved to be shrunken to 70%, whereas the remaining light granule cells were swollen to 130% of the normal cell volume. The heterochromatin and mitochondrial volumes per cell remained constant in both dark and light cells from methylmercury treated animals. In the purkinje cells from both young and adult rats, geometrical changes in the cisternae of the granulated endoplasmic reticulum were evident. The swelling and shrinkage of the granule cells is supposed to be due to impaired electrolyte control and the disorganized granulated endoplasmic reticulum of the Purkinje cells may be related to the deleterious effect on protein synthesis.
journal_name
Arch Toxicoljournal_title
Archives of toxicologyauthors
Syversen TL,Totland G,Flood PRdoi
10.1007/BF00332352subject
Has Abstractpub_date
1981-04-01 00:00:00pages
101-11issue
2eissn
0340-5761issn
1432-0738journal_volume
47pub_type
杂志文章abstract：:Previous rat toxicity studies of alpha-glycosyl isoquercitrin (AGIQ), a water-soluble flavonol glycoside derived from rutin, revealed systemic yellow bone discoloration. This investigative study was conducted to determine the AGIQ metabolite(s) responsible for the discoloration. Female Sprague-Dawley rats were adminis...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s00204-020-02760-z
更新日期：2020-07-01 00:00:00
abstract：:Second order rate constants for the initial reaction of 12 mammalian oxyhemoglobins (Hb) with equimolar phenylhydrazine (PHZ), a compound inducing Heinz body hemolytic anemia, were determined by recording continuous changes in absorbance with time at 577 nm. The rate constants were varied in a range from 43 m-1.s-1 wi...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s002040050161
更新日期：1995-01-01 00:00:00
abstract：:When rats were dosed with 14 microgram/kg 3H-isoproterenol, 3H-radioactivity was measurable in the liver until 48 h. This amount was not different in livers of animals which have been pretreated with diethyl maleate. After exhaustive extraction, a significant amount of 3H-radioactivity from isoproterenol could be dete...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/BF00343273
更新日期：1977-12-30 00:00:00
abstract：:Female C57/BL/6 x DBA/2 hybrid mice were exposed to two concentrations (270 and 135 ppm) of tetrachloroethylene (PER) in inhalation chambers for 6 h/day, 5 days per week, up to 11.5 weeks (270 ppm) and 7.5 weeks (135 ppm), respectively, followed by a 3-week exposure-free period. In the peripheral blood a reduction of ...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/BF01974021
更新日期：1992-01-01 00:00:00
abstract：:A predictive test using mice for the identification of contact sensitizing chemicals was developed. Contact sensitizing activity is measured as a function of draining lymph node activation following application of test chemical. Experimental conditions for assessment of induced lymph node cell (LNC) responses have bee...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/BF01974070
更新日期：1993-01-01 00:00:00
abstract：:N-Methyl-2-pyrrolidone (NMP) is a versatile organic solvent frequently used for surface cleaning such as paint stripping or graffiti removal. Liquid NMP is rapidly absorbed through the skin but dermal vapour phase absorption might also play an important role for the uptake of the solvent. This particular aspect was in...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s00204-007-0230-5
更新日期：2008-01-01 00:00:00
abstract：:The investigation was aimed at providing insight into the side chain metabolism of furazolidone in mice. The agents used in the experiments were furazolidone, 3-amino-2-oxazolidinone, oxazolidinone, nitrofurantoin, 3-aminohydantoin and hydantoin, administered intraperitoneally at five equimolar doses ranging from 0.17...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/BF00661377
更新日期：1987-12-01 00:00:00
abstract：:Sulfur dioxide (SO2) is a common air pollutant, and inhaled SO2 in airway epithelium easily forms its soluble derivatives in vivo (bisulfite and sulfite), which are toxic to the respiratory system and related to the exacerbation of asthma. To investigate the effects of SO2 derivatives on the expressions of asthma rela...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s00204-007-0212-7
更新日期：2007-12-01 00:00:00
abstract：:Cytokeratins (CK) constitute a family of cytoskeletal intermediate filament proteins that are typically expressed in epithelial cells. An abnormal structure and function are effects that are clearly related to liver diseases as non-alcoholic steatohepatitis, cirrhosis and hepatocellular carcinoma. We have previously o...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s00204-007-0192-7
更新日期：2007-09-01 00:00:00
abstract：:Polyclonal antibodies raised toward a debrisoquine 4-hydroxylating cytochrome P-450 species purified from rat liver (P-450UT-A) were used to determine which monooxygenase reactions are linked to debrisoquine hydroxylation in human liver. Anti P-450UT-A did not inhibit the oxidation of dimethylnitrosamine, morphine, di...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/BF00296955
更新日期：1987-01-01 00:00:00
abstract：:The associations of four single nucleotide polymorphisms (p.Arg194Trp, p.Arg280His, p.Pro206Pro, and p.Arg399Gln) in X-ray repair cross-complementing group 1 with urinary arsenic metabolites and 8-hydroxy-2'-deoxyguanosine (8-OHdG) were investigated in a Vietnamese population (n = 100). Individuals with genotype AA in...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s00204-015-1490-0
更新日期：2016-04-01 00:00:00
abstract：:Although shorter chain homologues and other types of fluorinated chemicals are currently used as alternatives to long-chain perfluoroalkyl substances (PFASs), their safety information remains unclear and urgently needed. Here, the cytotoxicity of several fluorinated alternatives (i.e., 6:2 fluorotelomer carboxylic aci...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s00204-017-2055-1
更新日期：2018-01-01 00:00:00
abstract：:A method is described for the determination of lorazepam plasma levels involving extraction from the sample and analysis of the intact lorazepam by electron capture gas-liquid chromatography. Using mass spectrometry it is demonstrated, that lorazepam shows a thermal rearrangement under gas chromatographic conditions. ...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/BF00293571
更新日期：1976-06-08 00:00:00
abstract：:Metabolism of carbaryl by rat liver and skin post-mitochondrial fraction has been measured in the presence and absence of cofactors to promote different metabolic pathways. The metabolic capacity was compared with the metabolism of carbaryl during percutaneous absorption in a static skin diffusion system using a varie...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/BF01973722
更新日期：1991-01-01 00:00:00
abstract：:Dulcin (DL), now banned, was once a widely used artificial sweetener. DL possesses an ureido group that is metabolized by direct glucuronidation in rabbit liver microsomes. Dulcin N-glucuronide (DNG) is the only type of ureido N-glucuronide known to date; ureido glucuronidation in humans has not been previously report...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s00204-006-0138-5
更新日期：2007-03-01 00:00:00
abstract：:Forty-eight hours after a single dose of 14C-imipramine to rats, 14C-radioactivity could be measured in the following organs: liver greater than kidney greater than serum greater than fat greater than spleen greater than duodenum greater than lung greater than muscle and brain. Liver microsomes contained the main part...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/BF00353357
更新日期：1976-12-23 00:00:00
abstract：:This review encompasses the most important advances in liver functions and hepatotoxicity and analyzes which mechanisms can be studied in vitro. In a complex architecture of nested, zonated lobules, the liver consists of approximately 80 % hepatocytes and 20 % non-parenchymal cells, the latter being involved in a seco...
journal_title：Archives of toxicology
pub_type： 杂志文章,评审
doi：10.1007/s00204-013-1078-5
更新日期：2013-08-01 00:00:00
abstract：:A new strategy for the evaluation of mixtures is presented. The mixture used was the organic extract of diesel exhaust particles (DEP). After extraction with dichloromethane (DCM), the crude extract was fractionated according to polarity into five fractions: aliphatic hydrocarbons, polycyclic aromatic hydrocarbons (PA...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s002040050392
更新日期：1997-01-01 00:00:00
abstract：:Multiple oximes have been synthesized and evaluated for use as countermeasures against chemical warfare nerve agents. The current U.S. military and civilian oxime countermeasure, 2-[(hydroxyimino)methyl]-1-methylpyridin-1-ium chloride (2-PAM), is under consideration for replacement with a more effective acetylcholines...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s00204-012-0987-z
更新日期：2013-04-01 00:00:00
abstract：:The results from a survey of the expert information that is publicly accessible on the use of the dog as test species during the regulatory evaluation of agricultural chemicals and pesticides are reported. Methods that are being used or considered in order to reduce the number of dogs used for this purpose are describ...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s00204-005-0678-0
更新日期：2005-11-01 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 high acute toxicity of acrylonitrile may be a result of its intrinsic biological reactivity or of its metabolite cyanide. Intravenous N-acetylcysteine has been recommended for treatment of accidental intoxications in acrylonitrile workers, but such recommendations vary internationally. Acrylonitrile is metabolized...
journal_title：Archives of toxicology
pub_type： 杂志文章,评审
doi：10.1007/s002040000109
更新日期：2000-07-01 00:00:00
abstract：:Many carcinogens and mutagens are electrophilic in nature and will react with nucleophilic sites in protein and nucleic acid. Determination of the extent of formation of these adducts of genotoxic agents with protein provides a practical method of monitoring human exposure and of determining the possible risk associat...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/BF00296978
更新日期：1987-01-01 00:00:00
abstract：:Selenium (Se) is an essential dietary component for animals including humans and is regarded as a protective agent against cancer. Although the mode of anticancer action of Se is not fully understood yet, several mechanisms, such as antioxidant protection by selenoenzymes, specific inhibition of tumor cell growth by S...
journal_title：Archives of toxicology
pub_type： 杂志文章,评审
doi：10.1007/s00204-010-0595-8
更新日期：2010-12-01 00:00:00
abstract：:Insulin-exposed rat mammary cancer cells were flow sorted based on a c-myc reporter plasmid encoding a destabilized green fluorescent protein. Sorted cells exhibited gradual increases in c-myc levels. Cells overexpressing c-myc by only 10% exhibited phenotypic changes attributable to c-myc overexpression, such as cell...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s00204-009-0463-6
更新日期：2009-12-01 00:00:00
abstract：:The acute toxicity of cyanide is determined by its peak levels reached in the body. Compared to the ingestion of free cyanide, lower peak levels may be expected after consumption of foods containing cyanogenic glycosides with the same equivalent dose of cyanide. This is due to possible delayed and/or incomplete releas...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s00204-015-1479-8
更新日期：2016-03-01 00:00:00
abstract：:To reveal the molecular mechanism of deficit in learning and memory induced by chronic fluorosis, the expression of muscarinic acetylcholine receptors (mAChRs) and oxidative stress were investigated. Sixty Sprague-Dawley (SD) rats were divided randomly into two groups (30 cases in each), i.e., the control group (<0.5 ...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s00204-014-1408-2
更新日期：2015-11-01 00:00:00
abstract：:The regional distribution of dopamine, norepinephrine and homovanillic acid was assessed in adult male rabbits exposed to styrene vapours. The turnover of dopamine and norepinephrine was also measured in several brain regions by the decay in endogenous catecholamines after inhibition of tyrosine hydroxylase by alpha-m...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/BF00316123
更新日期：1984-09-01 00:00:00
abstract：:Treatment of tuberculosis (TB) has been a therapeutic challenge because of not only the naturally high resistance level of Mycobacterium tuberculosis to antibiotics but also the newly acquired mutations that confer further resistance. Currently standardized regimens require patients to daily ingest up to four drugs un...
journal_title：Archives of toxicology
pub_type： 杂志文章,评审
doi：10.1007/s00204-016-1727-6
更新日期：2016-07-01 00:00:00
abstract：:Cadmium, copper and zinc have been determined in kidney cortex, kidney medulla and liver from 51 cadmium-polluted and 122 nonpolluted autopsied subjects. Liver cadmium and zinc were significantly higher in the cadmium-polluted subjects than in the nonpolluted subjects. Kidney cadmium, copper and zinc were lower in the...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/BF00316211
更新日期：1987-04-01 00:00:00
