fibrosarcoma/トウモロコシ

The effect of 200 micrograms doses of all-trans retinoic acid, given over a long duration (daily for 8 weeks, suspended for 3 weeks, then resumed daily for 4 weeks) or short duration (daily for 30 days), on the induction of fibrosarcomas in C57BL/6J mice by MCA was evaluated. A reduced level of

Toluene diisocyanate (TDI) is commercially produced as an approximate 80:20 mixture of the 2,4- and 2,6-isomers. In 1980, 580,000 pounds of this chemical were produced in the United States, primarily for use in the manufacture of flexible polyurethane foams. These foam elastomers are found in

Toxicology and carcinogenesis studies of isophorone (greater than 94% pure), a widely used solvent and chemical intermediate, were conducted by administering 0, 250, or 500 mg isophorone/kg body weight per day by gavage in corn oil to groups of 50 F344/N rats and 50 B6C3F1 mice of each sex, 5 days

BACKGROUND A benefit for eicosapentaenoic acid (EPA) supplementation for protein maintenance in cancer patients exists, although specific mechanisms are unknown. As the ubiquitin-proteasome proteolytic (UPP) pathway has been implicated in protein use in malignancy, we determined mRNA levels for UPP

Two mice of the TM strain, maintained on Purina chow supplemented with refined coin oil plus free fatty acids, in one case, and with refined corn oil without free fatty acids, in the other case, developed primary heart rhabdomyosarcomas. The tumors metastasized to the lungs and the kidney, in the

Oral administration of 8-methoxypsoralen followed by exposure to longwave ultraviolet light (primarily ultraviolet A, 320-400 nm) is used in the treatment of vitiligo and psoriasis. 8-Methoxypsoralen also occurs naturally in a variety of vegetables. Toxicology and carcinogenesis studies of

A 2-year carcinogenesis bioassay of food-grade allyl isothiocyanate (greater than 93% purity), a flavoring agent, was conducted by administering 12 or 25 mg/kg allyl isothiocyanate in corn oil five times per week by gavage to groups of 50 F344/N rats and 50 B6C3F1 mice of each sex for 103 weeks.

The QT35 cell line, established from 20-methylcholanthrene (MCA)-induced tumours in Japanese quail, is positive for Marek's disease virus (MDV), and therefore we examined whether MDV is important for the development of MCA-induced tumours. Japanese quail were inoculated with the JM16 strain of MDV

BACKGROUND Omega-3 fatty acids, the principal component of fish oil, have been demonstrated to have antiinflammatory properties. The role of eicosapentaenoic acid (EPA) supplementation for cancer patients is currently under investigation; however, the mechanisms of EPA activity have not been

Groups of 50 F344/N rats of each sex and 50 B6C3F1 mice of each sex were gavaged with corn oil or a mixture of toluene diisocyanate (TDI) in corn oil for 5 days per week for 105 or 106 weeks. Female rats and mice were given doses of 60 or 120 mg/kg body weight, while male rats received 30 or 60

BACKGROUND Eicosapentaenoic acid (EPA) has been shown to have anti-inflammatory and tumor growth inhibitory effects clinically and experimentally; evidence also supports the role of EPA in attenuating cancer-associated weight loss, but the mechanisms of these effects remain to be defined. As the