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o toluidine/rakovina

Odkaz je uložen do schránky
11 Výsledek
In six carcinogenicity bioassays, male and female F344 rats were fed diets containing aniline hydrochloride (CAS: 142-04-1; hydrochloride benzenamide), p-chloroaniline (CAS: 106-47-8), azobenzene (CAS: 103-33-3), o-toluidine hydrochloride (CAS: 636-21-5), dapsone (CAS: 80-08-0;

Monitoring of aromatic amine exposures in workers at a chemical plant with a known bladder cancer excess.

Články mohou překládat pouze registrovaní uživatelé
Přihlášení Registrace
BACKGROUND In April 1991, an excess of bladder cancer cases among workers employed at a chemical manufacturing facility in Niagara Falls, NY, was reported. This excess was primarily confined to 708 workers who had ever been employed in the rubber chemicals manufacturing area of the plant, where the

Carcinomas of the urinary bladder in a 4-chloro-o-toluidine cohort.

Články mohou překládat pouze registrovaní uživatelé
Přihlášení Registrace
In an historical mortality study, conducted on a cohort of 335 male employees in 4-chloro-o-toluidine (4-COT) production and processing plants, no deaths due to cancer of the urinary bladder had been identified. However, after completion of this study, urothelial carcinomas were recorded in eight of

Bioassay of o-toluidine hydrochloride for possible carcinogenicity.

Články mohou překládat pouze registrovaní uživatelé
Přihlášení Registrace
A bioassay of o-toluidine hydrochloride for possible carcinogenicity was conducted by administering the test chemical in feed to F344 rats and B6C3F1 mice. Groups of 50 rats of each sex and 50 mice of each sex were administered o-toluidine hydrochloride at one of several doses, either 3,000 or 6,000

γ-H2AX formation in the urinary bladder of rats treated with two norharman derivatives obtained from o-toluidine and aniline.

Články mohou překládat pouze registrovaní uživatelé
Přihlášení Registrace
Aminomethylphenylnorharman (AMPNH) and aminophenylnorharman (APNH) are mutagenic norharman derivatives obtained from o-toluidine and aniline, respectively. APNH is carcinogenic to the urinary bladder of rats and present in urine samples of healthy volunteers, indicating that norharman derivatives

NMR-based model reveals the structural determinants of mammalian arylamine N-acetyltransferase substrate specificity.

Články mohou překládat pouze registrovaní uživatelé
Přihlášení Registrace
Arylamine N-acetyltransferases (NATs) catalyze the acetylation of arylamines, a key step in the detoxification of many carcinogens. The determinants of NAT substrate specificity are not known, yet this knowledge is required to understand why NAT enzymes acetylate some arylamines, but not others.

Monoarylamines in the general population--a cross-sectional population-based study including 1004 Bavarian subjects.

Články mohou překládat pouze registrovaní uživatelé
Přihlášení Registrace
OBJECTIVE The population-based cross-sectional study including 1004 Bavarian volunteers aged 3 up to 84 years (median: 42 years) was aimed to quantify the internal burden of monocyclic arylamines in the general population and to yield reference values. METHODS Participants were asked to complete a

New analogues of AHMA as potential antitumor agents: synthesis and biological activity.

Články mohou překládat pouze registrovaní uživatelé
Přihlášení Registrace
A series of new analogues of 3-(9-acridinylamino)-5-hydroxymethylaniline (AHMA, 1) and AHMA-ethylcarbamate (2) were synthesized by introducing an O-alkylcarboxylic acid esters to the CH(2)OH function, displacing the CH(2)OH function with a dimethylaminocarboxamido group or with a methyl function

[Experimental study of ortho-toluidine carcinogenicity].

Články mohou překládat pouze registrovaní uživatelé
Přihlášení Registrace
Ortho-toluidine carcinogenicity has been tested in chronic experiments using mice, rats and dogs. Tumors were induced in 19% of mice (lung and kidney adenomas, leukemia), rats--40% (subcutaneous fat tumors, mammary fibroadenomas, leukemia, renal tumors and hepatic sarcoma). Bladder tumors developed

Workers' response to risk notification.

Články mohou překládat pouze registrovaní uživatelé
Přihlášení Registrace
Since 1988, the National Institute for Occupational Safety and Health (NIOSH) has notified workers who were subjects in occupational epidemiology studies of the study findings ("worker notification"). This paper describes seven notifications and the worker's reactions to them. The chemicals of

Determination of three carcinogenic aromatic amines in urine of smokers and nonsmokers.

Články mohou překládat pouze registrovaní uživatelé
Přihlášení Registrace
Aromatic amines (arylamines) such as o-toluidine, 2-aminonaphthalene, and 4-aminobiphenyl occur in the environment and are constituents of tobacco smoke. Human exposure to these aromatic amines has long been associated with an elevated risk of bladder cancer. A validated, specific, and sensitive
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