Chemopreventive effect of Pistacia vera leaf extract against Mammary Carcinoma Induced by Dimethyl-Benz(a)anthracene in vivo and in vitro: potential role of antioxidant, antiinflammatory and immune mechanisms.

This study aimed to define the antitumor effect of ethanolic extract of Pistacia vera leaves (PEE) toward breast cancer both in vitro and in vivo using dimethyl-benz(a)anthracene (DMBA)-induced breast tumor in adult female rats. PEE showed a potent antioxidant effect toward both DPPH (1,1-diphenyl-2-picrylhydrazyl) and ABTS (2,2'-azino-bis(3-ethylbenzthiazoline-6-sulphonic acid) radicals with IC values of 72.6 and 107.

Solvatochromism, Preferential Solvation and Multiparametric Approach to the Spectral Shift of Methyl Orange in Aqueous Cosolvent Mixtures.

In this study, the solvatochromic behavior of Methyl orange was studied visible spectrophotometrically in seven aqueous binary systems from water with methanol, ethanol, propanol, DMF, DMSO, acetone and dioxane solvents. The spectral data was interpreted in terms of solute-solvent and solvent-solvent interactions. The deviation from linearity in the plots of ν versus x due to preferential solvation of the Methyl orange by one component of the mixed solvent and due to solvent microheterogeneity.