Results 221 to 230 of about 282,417 (263)
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Carcinogenicity of Methylchrysenes
Science, 1974Methylchrysenes are present in tobacco smoke and are suspected to contribute to the tumorigenicity of this inhalant. Chrysene and the six isomeric methylchrysenes were obtained in high purity (> 99.9 percent); they were tested on mouse skin for tumor initiating activity and carcinogenicity.
D, Hoffmann, W E, Bondinell, E L, Wynder
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Reviews on Environmental Health, 1979
The study of bracken carcinogenicity affords an interesting example of the close alliance, with mutual benefit, between the work of veterinarians in the field and experimental research. On the one hand was the condition found in many parts of the world of bovine enzootic haematuria with uncertain aetiology and, on the other, the investigations ...
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The study of bracken carcinogenicity affords an interesting example of the close alliance, with mutual benefit, between the work of veterinarians in the field and experimental research. On the one hand was the condition found in many parts of the world of bovine enzootic haematuria with uncertain aetiology and, on the other, the investigations ...
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Carcinogenicity and Modification of Carcinogenic Response by Antioxidants
1990Synthetic or naturally occurring antioxidants such as butylated hydroxyanisole (BHA), butylated hydroxytoluene (BHT), propyl gallate sodium L-ascorbate, and α-tocopherol have been widely used as food additives in various processed foods to prevent auto-oxidation of fatty acids.
N, Ito +3 more
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Carcinogens and Anticarcinogens
1986There is the potential for major progress in the prevention of cancer in the next 5 or 10 years. In the short term, progress in the prevention of cancer depends on a better understanding of some of the risk factors and antirisk factors for the major human cancers.
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Carcinogenicity of Procarbazine
Zeitschrift f�r Krebsforschung und Klinische Onkologie, 1974225 mg Procarbazine administered by 15 intraperitoneal injections in R strain female rats induced malignant tumors in every rat after a median latency of 301 days: mammary, uterine and ear-duct tumors were obtained after a latent period of 270, 377, and 244 days respectively.
C, Deckers +4 more
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Mutagens, Carcinogens, and Anti-Carcinogens
1982Mutagens and carcinogens in the environment represent a potential hazard, and it is important to screen large numbers of compounds and mixtures of compounds to which humans are exposed. However, it is Impractical for both technical and monetary reasons to do the bulk of mutagen screening by using mammals.
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Environmental Research, 1979
Abstract Lindane is highly carcinogenic in rats and mice. Lindane induced benign and malignant neoplasms at all sites in male and female rats. Benign and malignant neoplasms of the endocrine organs were also increased. Carcinomas of the adrenal and pituitary were increased markedly in male and female rats.
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Abstract Lindane is highly carcinogenic in rats and mice. Lindane induced benign and malignant neoplasms at all sites in male and female rats. Benign and malignant neoplasms of the endocrine organs were also increased. Carcinomas of the adrenal and pituitary were increased markedly in male and female rats.
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Nature, 1954
THE effects of various metals on living cells in tissue culture are being investigated in this Laboratory, and a non-lethal disturbance of normal mitosis produced in chick fibroblasts by cobalt (as chloride) has already been reported1. This effect, which is characterized by the persistence of the nucleoli in mitotic cells throughout prophase into meta-,
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THE effects of various metals on living cells in tissue culture are being investigated in this Laboratory, and a non-lethal disturbance of normal mitosis produced in chick fibroblasts by cobalt (as chloride) has already been reported1. This effect, which is characterized by the persistence of the nucleoli in mitotic cells throughout prophase into meta-,
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Proceedings of the Royal Society of London. Series B - Biological Sciences, 1957
Abstract In confirmation of previous reports from this Institute, cholesterol has been shown to be carcinogenic. Highly purified cholesterol (Schwenk process), dissolved in olive oil by heating on the water-bath, was injected subcutaneously into 224 stock mice. Fourteen sarcomas were induced at the site of injection.
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Abstract In confirmation of previous reports from this Institute, cholesterol has been shown to be carcinogenic. Highly purified cholesterol (Schwenk process), dissolved in olive oil by heating on the water-bath, was injected subcutaneously into 224 stock mice. Fourteen sarcomas were induced at the site of injection.
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Pharmacology & Toxicology, 1993
Abstract: Air pollution has been recognized as a cancer risk for many years. More than 2,800 different chemicals have been identified in the air or emission sources. Only about 10% of these chemicals have been evaluated in bioassays for genetic or carcinogenic effects.
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Abstract: Air pollution has been recognized as a cancer risk for many years. More than 2,800 different chemicals have been identified in the air or emission sources. Only about 10% of these chemicals have been evaluated in bioassays for genetic or carcinogenic effects.
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