Results 161 to 170 of about 9,159,657 (214)
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Antimutagenic effects of polyphenolic compounds
Cancer Letters, 1992Smokers expose themselves to potent carcinogens daily. One of them is the nicotine-derived nitrosamine 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK). Since estimates are that humans consume 1 g of phenolic compounds/day, we investigated the inhibitory effects of five structurally related polyphenolic compounds on the mutagenicity of NNK in ...
R W, Teel, A, Castonguay
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Umu test applied for screening natural antimutagenic agents
Food Chemistry, 2011 Antimutagenic activities of pure commercial chemicals and food supplements were compared with that of herb extracts using a method based on the umu test system for screening natural antimutagens.
Monique Lacroix
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Antimutagenic effects of stobadine: Review of results
Life Sciences, 1999The paper summarizes the results of our previously published studies testifying the hypothesis of the antimutagenic effect of stobadine (STB) in vivo and in vitro. The micronucleus test was used in in vivo experiments with ICR mice. Oral pretreatment with STB significantly decreased the mutagenic effect of cyclophosphamide (CP) in a concentration ...
D, Chorvatovicová +2 more
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Antimutagenic Effects of Chlorophyllin
1990It has been suggested that the majority of human cancers are caused by environmental exposures, but little is known about the effective environmental and occupational risks of cancer. It is likely that the process of mutagenesis and the intricate balance between mutagenesis and antimutagenesis are involved in aging, evolution, and other fundamental ...
G, Bronzetti, A, Galli, C, Della Croce
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Apparent antimutagenic effect of ultraviolet irradiation
Mutation Research, 1983Strain SL3367 is a S. typhimurium LT2 hisG46 stock which spontaneously reverts to His+ at a high frequency. Plates of defined medium with 1% (v/v) nutrient broth inoculated with ca. 10(8) washed SL3367 cells were incubated, untreated or after UV irradiation.
D P, Brunner, B A, Stocker
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On the antimutagenic effect of spermine
Experientia, 1967La spermine n'offre aucune protection contre la reversion des mutants derII chezEscherichia coliphage T4, quoiqu'on ait constate qu'elle antimutagenique chezE. coli.
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Tea components: Antimutagenic and anticarcinogenic effects
Preventive Medicine, 1992Tea from the Camellia sinensis species of the Theaceae family is one of the most ancient and, next to water, the most widely consumed beverage in the world. Since tea contains several polyphenols and since several other naturally occurring dietary polyphenols have shown antimutagenic effects in bacteria and anticarcinogenic effects in animal bioassay ...
H, Mukhtar +3 more
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Antimutagenic and anticarcinogenic effects of Phyllanthus amarus
Phytomedicine, 2002This study aimed to examine the antimutagenic and anticarcinogenic potential of Phyllanthus amarus Schum. et Thonn. using the bacterial preincubation mutation assay and an in-vivo alkaline elution method for DNA single-strand breaks in hamster liver cells.
B, Sripanidkulchai +6 more
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Antimutagenic effects in humans
Mutation Research - Fundamental and Molecular Mechanisms of Mutagenesis, 1992The application of antimutagenicity studies to human somatic mutation is discussed, with emphasis on the potential for future studies. Five assay-gene combinations are now available for measuring human somatic mutation in lymphocytes and erythrocytes. Results with these combinations have defined the human background levels, and show clear responses of ...
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Antimutagenic Effects of Lycopene and Tomato Purée
Journal of Medicinal Food, 2010Several health benefits, including protection from tumors at various anatomic sites, such as the lungs, stomach, and prostate gland, have been attributed to tomatoes and tomato-based products. Among tomato carotenoids, lycopene is the most active antioxidant, although it has many other biological effects, but data on its antimutagenic effects are ...
Zdeňka, Polívková +3 more
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