As a result, it was suggested that long-term exposure to Cd and Pb contaminated food may affect snail populations by decreasing snail size and delaying the maturation age because of increased detoxification effort.
The increased energy production in liver suggested by these changes can be related to the increased detoxification activity known to occcur in liver after PAH exposure, and can be also related directly or indirectly to the changes observed in the levels of plasma steroids.
Increased detoxification of hydrogen peroxide could stabilize Dre2-Tah18 intah18tion in tah18 mutants and thus avoid Tah18 relocalization to the mitochondria, as observed using fluorescent mutated Tah18 versions.
Apparently, quality food produces chemical signals that direct C. elegans to increase detoxification enzyme expression (Gracida & Eckmann, 2013).
The major mechanisms governing pyrethroid resistance in this strain include increased detoxification mediated by P450 monooxygenases and decreased sensitivity of voltage-gated sodium channels (kdr) [ 15, 31, 32].
Potential biologic pathways linking increased physical activity to decreased risk of bladder cancer include enhanced immune function, reduced chronic inflammation, increased detoxification of carcinogens, enhanced DNA repair, and modified cell proliferation, differentiation, and apoptosis (Rogers et al, 2008).
Moreover, considerations should be taken of drug resistance mechanisms, including reduced intracellular drug accumulation, increased detoxification of the drug by thiol-containing molecules, increased DNA damage repair, and altered cell signaling pathways and apoptosis mediators [ 13].
Beneficial effects of physical activity are also conceivable for skin cancer, specifically those that improve immune function and those that increase detoxification of reactive oxygen species or increase DNA repair, thus reducing sun exposure-induced DNA damage [ 5, 7, 8].
Although smoking induces CYP2E1, suggesting that smokers should be more sensitive to neurotoxic effects of hexane, smokers may also have increased levels of other P450 isozymes (e.g., CYP1A1 and CYP1A2), leading to increased detoxification of n-hexane.
Immune dysfunction has been found in 15% to 60% of children with ASDs [ 53], and it was recently shown that, when compared with controls, children with ASDs exhibited greater evidence of increased detoxification difficulties, oxidative stress, and immune dysregulation [ 54].
