Free radicals are found to be involved in both initiation and promotion of multistage
carcinogenesis. These highly reactive compounds can act as initiators and/or promoters …

Reactive oxygen metabolites have multifactorial effects on the regulation of cell growth and
the capacity of malignant cells to invade. Overexpression of the superoxide dismutases …

Reactive oxygen species (ROS) are formed in mammalian cells as a consequence of
aerobic respiration. Despite multiple conserved redox modulating systems, a given …

Electronic cigarettes (ECs) are purported to be tobacco harm-reduction products whose
degree of harm has been highly debated. EC use is considered less hazardous than …

The methanol extract of Caesalpinia bonducella FLEMING (Caesalpiniaceae) leaves
(MECB) were evaluated for antitumor activity against Ehrlich ascites carcinoma (EAC) …

Recently, it has been proposed that pharmacologic concentrations of ascorbate (vitamin C)
can be reached by intravenous injection. Because high doses of ascorbate have been …

Depending on etiology, the esthetic treatment of dyschromia may involve vital tooth--
bleaching techniques. Hydrogen peroxide is the active molecule used for such procedures; …

The effect of methotrexate (MTX) and leucovorin (LCV) on pentose cycle enzymes and the
activity of enzymes involved in enzyme defence mechanisms against ROS in HeLa cells …

The role of reactive oxygen species, such as superoxide anions (O2·−) and hydrogen
peroxide (H2O2), in modulating vascular smooth muscle cell proliferation and viability is …

Porphyrins are the only and most powerful photosensitizers synthesized internally. To
understand better the involvement of porphyrins in photosensitization reactions, the heme …