Elevated activities of superoxide dismutase (SOD) were detected in histidine-requiring strains of Salmonella typhimurium after the bacteria were-preincubated for 1 h at 37OC with S-9 mix and paraquat (methylviologen, PQ") at 1 0 -4 M . A fivefold increase in SOD level was found for strains TA 9 8 an
The paradoxical effect of vitamin C on benzo[a]pyrene-induced tumors and malignancy
โ Scribed by G. Kallistratos; A. Donos; A. Evangelou; E. Fasske
- Publisher
- Springer
- Year
- 1984
- Tongue
- English
- Weight
- 167 KB
- Volume
- 71
- Category
- Article
- ISSN
- 0028-1042
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
XPA-deficient mice have a complete deficiency in nucleotide excision repair, and as such they display a cancer predisposition after exposure to several carcinogens. Besides being sensitive to genotoxic agents applied to the skin, they are also susceptible to human carcinogens given orally, like benz
The effect of the chemopreventive agent D,L-โฃ-difluoromethylornithine (DFMO) on the incidence of skin squamous cell carcinoma was studied in SENCAR mice treated weekly with topical applications of benzo(a)pyrene (B(a)P) (0.15 mmol, 2ฯซ/week) on the dorsal skin. Animals were randomized to receive eith