In vitro antioxidant and in vivo photoprotective effect of pistachio (Pistacia vera L., variety Bronte) seed and skin extracts

Wild Sicilian Rosemary: Phytochemical and Morphological Screening and Antioxidant Activity Evaluation of Extracts and Essential Oils

“…Theprotective effect of thes amples against UVC-inducedp eroxidation wase valuated in phosphatidylcholine (PC) multilamellar liposome vesicles (MLV s),b ym onitoring the production of malondialdehyde (MDA ), the final product of fatty-acid degradation [61].B riefly, 100 mg of PC,d issolved in CHCl 3 ,w ere transferred to as mall, stopperedt ube.T he lipid was thoroughly driedu nder as tream of N 2 and then dissolved in warm EtOH(80 mg). An aliquot of 200 mg of a25mm Tris/HCl soln.…”

“…Thes uspension was vortex-mixed throughout this last stage.T he liposome dispersion (1 ml in aglass flask with a3cm 2 exposure surface area)was maintainedatr.t. and exposedfor 1hto UVradiation generated by a15WPhilips germicidal lamp (254 nm)atadistance of 10 cm;the dose rate of UV-radiation was 105 erg/mm 2 /s.Different amounts of the samples to be tested were added to the system, and an equal volume( 50 ml) of the vehicle alone (MeOH)w as added to control tubes.T he MDA concentration in the mixture was measured as previously described [ 61].A ll experiments were carried out in triplicatea nd repeated at least threet imes.T he results were expressed as percentage MDA decrease with respect to controls,and meaninhibitory concentrations (IC 50-UV-IP values)were calculated by using the Litchfield and Wilcoxon method. O .À least three times.T he results were expresseda sp ercent decrease with respect to controls,a nd mean inhibitory concentrations (IC 50-SOD values) were calculated by using the Litchfield and Wilcoxon method.…”

Anti-inflammatory and analgesic effects of two new flavone C-glycosides from Panzeria alaschanica

“…Many investigations [9][10][11][12][13] have shown that flavonoids exhibit various biological activities, such as analgesic, anti-inflammatory, anti-bacterial, antioxidant, and hepatoprotective effects, so we hypothesize that the flavonoids may be the effective part of P. Alaschanica for anti-inflammatory and analgesic effects. In continuation of our investigation for active compounds, we carried out a systematic chemical study of extracts from the aerial parts of P. alaschanica, which resulted in the isolation of two new flavone C-glycosides with antiinflammatory and analgesic activities.…”

Natural Ingredients in Cosmetics from Malaysian Plants: A Review

“…In addition, the study depigmenting effects of catechins are shown to promote melanin synthesis inhibition of B16 melanoma (Sato & Toriyama 2009). Polyphenols can also act as photoprotection (Martorana et al 2013;Ruszova et al 2013;Sevin et al 2007) thus allowing the compounds to incorporate in sunscreen formulation as a prevention against ultraviolet (UV) radiation.…”