This may or may not imply that TCDD reduced the carcinogenicity of estrogens.
Taking into consideration the survival data, time to tumor data, and the pathology results, glycolic acid did not alter the photocarcinogenesis induced by SSR, while SA at 4% showed a photoprotective activity, reducing the carcinogenicity of SSR.
In the 1980s, the EPA classified the chemical as a possible human carcinogen, but in 1991 reduced its status to "evidence of non-carcinogenicity for humans" after reevaluating lab studies on mice.
The data suggest that the carcinogenicity of 4-substituted 1,3-phenylenediamines is reduced substantially or eliminated completely by oxidation of one or both amine groups or by N-substitution.
Research on the preparation of modified bituminous substances originating from coal, carried out for many years in the Institute of Chemistry of Warsaw University of Technology in Plock has led to the elaboration of method reducing the level of carcinogenicity of coal-tar pitch [ 4].
There is sufficient evidence of potential carcinogenicity of BD in humans; thus, relevant occupational health organizations have reduced occupational exposure limits of BD.
When glycerol was added to tobacco smoke condensate in acetone solvent, the topical carcinogenicity and the ability to produce epithelial hyperplasia in mice was reduced.
As a consequence of the findings of osteosarcoma in a rat carcinogenicity study with teriparatide (fragment 1 34 of PTH) the study duration was reduced from 36 months to 18 months.
Support for this premise derives from a carcinogenicity research study in which long term administration of a dopaminergic compound significantly reduced seven neoplastic lesions, five nonneoplastic lesions and prevented two age-related, degenerative somatic changes in treated subjects (Walker et al 1998).
Motomura et al. (2003) isolated an unidentified enzyme from Pleurotus ostreatus that reduced the fluorescence of AFB1 and attributed this to the disruption of its lactone ring that plays an important role in carcinogenicity.
