Abstract：
:The purpose of the present study was to investigate the effect of perfusion with a medium containing 12 or 24 micrograms Cadmium (as CdCl2) per ml on this metal's accumulation, transfer rate and metallothionein (MT) level. The experiments were performed with an isolated lobule of a dually-perfused human term placenta. Placental cell integrity and viability were characterised by their morphology and metabolic function, manifested in the tissue's electron microscopic structure and glucose and oxygen (O2) consumption, respectively. Perfusion with 24 micrograms Cd/ml medium for 5 h resulted in significant elevation in MT. The transfer rate of Cd to the fetal side of the placenta was very slow, and not until 40 min after the addition of Cd into the maternal side was a significant increase in the metal's level observed in the fetal perfusate. Thereafter, the level of the metal increased gradually and reached a steady state about 1 h later, at a level which was less than 1/20th of its concentration in the maternal perfusate. There was a 60-fold increase in Cd level in the cytosolic fraction obtained from the Cd-treated samples. At 12 micrograms Cd/ml no significant changes were noted in morphology, metabolic function and MT content. None of the Cd levels caused a significant change in O2 and glucose consumption, in spite of the fact that with the higher Cd dose the microstructure of the tissue showed some pathological changes. The observed elevation in MT may provide the fetus some protection against the harmful effects of the metal.
journal_name
Arch Toxicoljournal_title
Archives of toxicologyauthors
Boadi WY,Yannai S,Urbach J,Brandes JM,Summer KHdoi
10.1007/BF01968966subject
Has Abstractpub_date
1991-01-01 00:00:00pages
318-23issue
4eissn
0340-5761issn
1432-0738journal_volume
65pub_type
杂志文章abstract：:Epoxide hydrolases (EH) are ubiquitously expressed in all living organisms and in almost all organs and tissues. They are mainly subdivided into microsomal and soluble EH and catalyze the hydration of epoxides, three-membered-cyclic ethers, to their corresponding dihydrodiols. Owning to the high chemical reactivity of...
journal_title：Archives of toxicology
pub_type： 杂志文章,评审
doi：10.1007/s00204-014-1371-y
更新日期：2014-11-01 00:00:00
abstract：:The genotoxicity of the sensory irritant 2-chlorobenzylidene malonitrile (CS) to V79 Chinese hamster cells was investigated using the induction of gene mutations, micronuclei and DNA repair synthesis as biological endpoints. CS efficiently induced micronuclei and mutants resistant to 6-thioguanine in these cells, but ...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/BF00278645
更新日期：1989-01-01 00:00:00
abstract：:Platinum coordination complexes (PtCx) are potent against several types of cancer but are often nephrotoxic. With a view to developing a PtCx nephrotoxicity model, the toxicity of cisplatin (cDDP), transplatin (tDDP) and carboplatin (CBDCA) was studied in primary cultures of rabbit proximal tubule (RPT) cells and in t...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/BF01973705
更新日期：1993-01-01 00:00:00
abstract：:A set of biomedically relevant iron oxide nanoparticles with systematically modified polymer surfaces was investigated regarding their interaction with the first contact partners after systemic administration such as blood cells, blood proteins, and the endothelial blood vessels, to establish structure-activity relati...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s00204-017-1968-z
更新日期：2017-10-01 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：: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：:Epidemiological and experimental studies have demonstrated the atherogenic effects of environmental toxicant arsenic and fluoride. Inflammatory mechanism plays an important role in the pathogenesis of atherosclerosis. The aim of the present study is to determine the effect of chronic exposure to arsenic and fluoride a...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s00204-012-0803-9
更新日期：2012-06-01 00:00:00
abstract：:Early hepatocyte death occurs in most liver injury cases and triggers liver inflammation, which in combination with other risk factors leads to the development of liver disease. However, the pathogenesis of early phase hepatocyte death remains poorly understood. Here, C57BL/6J mice were treated with the hepatotoxic dr...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s00204-019-02454-1
更新日期：2019-06-01 00:00:00
abstract：:3-(Phenylamino)alanine (PAA), a contaminant found in L-tryptophan tablets, has been discussed as a possible cause of eosinophilia-myalgia syndrome (EMS). We administered PAA (100 mg/kg) by gastric gavage to Wistar rats to determine its distribution and metabolism. We developed a purification procedure, using Bond Elut...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s002040050102
更新日期：1994-01-01 00:00:00
abstract：:Most dietary flavonoids have antioxidant activity in vitro however, secondary mechanisms such as the ability to influence gene expression with the consequent modulation of specific enzymatic activities involved in the intracellular response against oxidative stress, are being realized. In the following study, we exami...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s00204-007-0210-9
更新日期：2007-11-01 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：: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：:Nephrotoxicity is a major side effect of cisplatin in chemotherapy. Pathologically, cisplatin nephrotoxicity is characterized by cell injury and death in renal tubules. The research in the past decade has gained significant understanding of the cellular and molecular mechanisms of tubular cell death, revealing a centr...
journal_title：Archives of toxicology
pub_type： 杂志文章,评审
doi：10.1007/s00204-014-1239-1
更新日期：2014-06-01 00:00:00
abstract：:Glucose is a major energy source for the entire body, while fructose metabolism occurs mainly in the liver. Fructose consumption has increased over the last decade globally and is suspected to contribute to the increased incidence of non-alcoholic fatty liver disease (NAFLD). NAFLD is a manifestation of metabolic synd...
journal_title：Archives of toxicology
pub_type： 杂志文章,评审
doi：10.1007/s00204-016-1892-7
更新日期：2017-04-01 00:00:00
abstract：:The ability of 3,5-diethoxycarbonyl-1,4-dihydrocollidine (DDC), 3,5-diethoxycarbonyl-4-ethyl-1,4-dihydro-2,6-dimethylpyridine (EDDC) and griseofulvin to induce porphyria in primary cultures of mouse hepatocytes has been examined. Exposure of cultured mouse hepatocytes to DDC, EDDC or griseofulvin resulted in a marked ...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/BF01974011
更新日期：1992-01-01 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：:N-methylformamide (NMF) produced dose-dependent zone 3 haemorrhagic necrosis in mice; the threshold dose was 100-200 mg/kg. In rats a dose of 1000 mg/kg caused hepatic damage in some animals and slight elevations of plasma transaminases. A species difference in susceptibility to NMF-induced hepatotoxicity is clearly i...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/BF00570135
更新日期：1988-01-01 00:00:00
abstract：:A dual-label time-resolved fluoroimmunoassay (TRFIA) for simultaneous quantification of aflatoxin B1 (AFB1) and ochratoxin A (OTA) is described. For this, microtitration wells were coated with AFB1-horse radish peroxidase (HRP) and OTA-bovine serum albumin. The standards and samples were loaded on the coated plates, a...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s00204-009-0410-6
更新日期：2009-06-01 00:00:00
abstract：:Nucleotide excision repair (NER) is a versatile pathway that removes helix-distorting DNA lesions from the genomes of organisms across the evolutionary scale, from bacteria to humans. The serial steps in NER involve recognition of lesions, adducts or structures that disrupt the DNA double helix, removal of a short oli...
journal_title：Archives of toxicology
pub_type： 杂志文章,评审
doi：10.1007/s00204-016-1820-x
更新日期：2016-11-01 00:00:00
abstract：:The peroxisome proliferator class of non-genotoxic rodent hepatocarcinogens cause hepatocyte DNA synthesis, peroxisome proliferation and liver tumours when administered to rats and mice, but fail to induce S-phase or peroxisome proliferation in hepatocytes from other species including guinea-pigs, dogs, and primates i...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s002040050483
更新日期：1998-02-01 00:00:00
abstract：:A study was conducted to determine the levels of cis-diamminedichloroplatinum (II) (cisplatin) in plasma proteins and hemoglobin of cancer patients after cisplatin chemotherapy. Thirty-seven cancer patients with different type of cancers (lung, esophageal, urinary tract, and testicular cancer, melanoma, osteosarcoma e...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/BF00303124
更新日期：1989-01-01 00:00:00
abstract：:Okadaic acid (OA) is produced by several types of dinoflagellates (marine plankton) and has been implicated as the causative agent of diarrhetic shellfish syndrome. Previous studies have shown that okadaic acid is a tumor promoter and a specific potent inhibitor of protein phosphatases and protein synthesis. These eff...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s00204-003-0460-0
更新日期：2003-11-01 00:00:00
abstract：:The oxidizing capacity of phagocytic cells is suspected to play a major role in the generation of immunogenic drug metabolites, in particular those that cause extrahepatic immunopathological lesions. In the case of the antirheumatic drug gold(I) disodium thiomalate (Na2Au(I)TM), oxidation of the Au(I) ion to Au(III) a...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s002040050198
更新日期：1995-01-01 00:00:00
abstract：:Intermittent inhalation of 300 ppm of xylene vapour 6 h daily for 2 weeks caused a marked accumulation of the solvent in the perirenal fat. Simultaneous ethanol ingestion reduced the solvent load significantly although the perirenal xylene concentration increased in both test groups between the first and second week o...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/BF00354091
更新日期：1978-12-28 00:00:00
abstract：:The toxic effect of cadmium varies with sex in experimental animals. Previous studies have demonstrated that pretreatment of male Fischer 344 (F344) rats with the female sex hormone progesterone markedly enhances the susceptibility to cadmium, suggesting a role for progesterone in the sexual dimorphism of cadmium toxi...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s00204-012-0844-0
更新日期：2012-09-01 00:00:00
abstract：:Primary hepatocytes are a widely used cell model to analyse the expression and regulation of hepatic cytochrome P450 (CYP) isoenzymes. Transforming growth factor-beta1 (TGF-beta1) was previously shown to inhibit constitutive and induced CYP1 expression in human cell lines and primary hepatocytes but not in rat cells. ...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s002040050667
更新日期：2000-05-01 00:00:00
abstract：:The present study was designed to evaluate the effects of chronic fluorosis on the dynamics (including fusion and fission proteins), fragmentation, and distribution of mitochondria in the cortical neurons of the rat brain in an attempt to elucidate molecular mechanisms underlying the brain damage associated with exces...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s00204-012-0942-z
更新日期：2013-03-01 00:00:00
abstract：:Female wistar rats, conventional albino mice, and Chinese hamsters were given a single dose of acrylonitrile, 0.5 or 0.75 mM/kg body weight. The elimination in the urine of thiocyanate, which is the main metabolite of acrylonitrile, indicated a decreasing proportion of biotransformation after oral (over 20%), intraper...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/BF00353240
更新日期：1975-02-14 00:00:00
abstract：: ...
journal_title：Archives of toxicology
pub_type： 评论,信件
doi：10.1007/s00204-018-2310-0
更新日期：2018-11-01 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
