Abstract：
:During aerobic incubation of trichloroethylene with rabbit liver microsomes and NADPH a difference absorption peak appears at 451-452 nm. Trichloroethylene does not form a ligand absorption spectrum with hepatic microsomes reduced by dithionite, or in anaerobic incubates in the presence of NADPH. Addition of trichloroethylene epoxide (2,2,3-trichloro-oxirane) to reduced suspensions of rabbit liver microsomes produces high difference absorption at 452 nm, the optical Ks being approximately 2 mM. Of all possible metabolites of trichloroethylene only trichloroethanol forms absorption in the vicinity of 480 nm, and the broad absorption band reveals relatively low absorption near 450 nm. Dichloroacetyl chloride is the main thermal rearrangement product of trichloroethylene epoxide, and also produces 452 nm absorption in reduced microsomes. However, the difference absorption is 5 times smaller than the absorption produced by the intermediate formed during incubation of trichloroethylene in metabolising liver microsomes. These observations include strong evidence for epoxide formation during microsomal oxidation of trichloroethylene. 14C-labelled trichloroethylene binds irreversibly to hepatic macromolecules in vivo and in vitro. Possible rearrangement pathways of 2,2,3-trichloro-oxirane and reactive intermediates are presented.
journal_name
Arch Toxicoljournal_title
Archives of toxicologyauthors
Uehleke H,Tabarelli-Poplawski S,Bonse G,Henschler Ddoi
10.1007/BF00293858subject
Has Abstractpub_date
1977-06-18 00:00:00pages
95-105issue
2eissn
0340-5761issn
1432-0738journal_volume
37pub_type
杂志文章abstract：:Quercetin (QC), a polyphenolic compound widely distributed in fruits and vegetables has recently gained interest due to its cisplatin (CP) sensitizing properties in cancer cells. It is currently unknown, whether quercetin also increases the susceptibility of the kidneys to cisplatin toxicity. We studied the effects of...
journal_title：Archives of toxicology
pub_type： 杂志文章
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abstract：:Human precision-cut liver slices (hPCLS) are a valuable ex vivo model that can be used in acute toxicity studies. However, a rapid decline in metabolic enzyme activity limits their use in studies that require a prolonged xenobiotic exposure. The aim of the study was to extend the viability and function of hPCLS to 5 d...
journal_title：Archives of toxicology
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doi：10.1007/s00204-016-1865-x
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abstract：:Several aromatic amines (AAs) are known to be carcinogens for humans. AAs are considered to be substantially absorbed through the skin. However, the database for dermal absorption of AAs in general is limited and no specific studies on dermal absorption of beta-naphthylamine (BNA) and o-toluidine (OT) have been publis...
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doi：10.1007/s00204-006-0095-z
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pub_type： 杂志文章
doi：10.1007/s00204-012-0976-2
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journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/BF00570135
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journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s00204-008-0302-1
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journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/BF02010721
更新日期：1990-01-01 00:00:00
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journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/BF00316345
更新日期：1984-11-01 00:00:00
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journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/BF00295090
更新日期：1987-02-01 00:00:00
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journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/BF00347879
更新日期：1982-03-01 00:00:00
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journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s00204-008-0399-2
更新日期：2009-06-01 00:00:00
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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
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journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/BF00297130
更新日期：1981-03-01 00:00:00
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journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/BF00293651
更新日期：1977-09-28 00:00:00
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journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s002040050131
更新日期：1994-01-01 00:00:00
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pub_type： 杂志文章
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更新日期：2009-03-01 00:00:00
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journal_title：Archives of toxicology
pub_type： 杂志文章
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journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/BF00316253
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journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/BF01891963
更新日期：1978-04-27 00:00:00
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journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s00204-008-0339-1
更新日期：2009-04-01 00:00:00
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更新日期：2018-05-01 00:00:00
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journal_title：Archives of toxicology
pub_type： 杂志文章,评审
doi：10.1007/BF00296984
更新日期：1987-01-01 00:00:00
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journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s00204-015-1593-7
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abstract：:The effect of N-benzyl-D-glucamine dithiocarbamate (BGD) on the renal toxicity induced by acute exposure to cadmium-metallothionein (Cd-MT) in rats was studied. Rats were injected intraperitoneally with BGD (400 mumol/kg) 6, 12, or 24 h after intraperitoneal injection of Cd-MT (1.78 mumol Cd as Cd-MT/kg) and thereafte...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/BF01974392
更新日期：1990-01-01 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
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journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s002040050444
更新日期：1997-01-01 00:00:00
abstract：:Pentachlorophenol (PCP) and Dichlorodiphenyltrichloroethane (DDT) are environmental contaminants found in human blood. Previous studies have shown that PCP and DDT inhibit the lytic function of highly purified human natural killer (NK) lymphocytes and decrease the expression of several surface proteins on NK cells. In...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s00204-016-1829-1
更新日期：2017-04-01 00:00:00
abstract：:The antidepressants, imipramine and mianserin, have been reported to cause liver damage. We investigated a role of cytochrome P450 (CYP)-mediated formation of a reactive metabolite in antidepressant-induced acute cell injury using hepatocytes isolated from male and female Wistar rats, and male Dark Agouti rats, which ...
journal_title：Archives of toxicology
pub_type： 杂志文章
doi：10.1007/s002040050599
更新日期：1999-04-01 00:00:00
