Cecropia obtusa, an Amazonian ethanolic extract, exhibits photochemoprotective effect in vitro and balances the redox cellular state in response to UV radiation

Cecropia obtusa extract and chlorogenic acid exhibit anti aging effect in human fibroblasts and keratinocytes cells exposed to UV radiation

“…In our previous study, C . obtusa leaf extract showed strong antioxidant capacity [3]. Specific characteristics influence the antioxidant activity of flavonoids and there are two classical structural antioxidant features of flavonoids.…”

“…C . obtusa extract and CGA were solubilized as previously described [3] and the cells received two different treatments: Group one was pretreated for 24 h in DMEM without phenol red 0.5% FBS, following irradiation. Group two was irradiated, following post treatment for 24 h in DMEM without phenol red 0.5% FBS.…”

Protective effect of gallic acid derivatives from the freshwater green alga Spirogyra sp. against ultraviolet B-induced apoptosis through reactive oxygen species clearance in human keratinocytes and zebrafish

“…Many studies have been conducted to find the bioactive extracts or active ingredients derived from natural sources, particularly having polyphenol structure including hydroxyl groups on aromatic rings, which can modulate the generation of UVB induced-ROS (Samarakoon et al 2013, Farooqi et al 2015, Lee et al 2015b, 2015c, 2015d, Alves et al 2016, Fernando et al 2017a, 2017b.…”

Skin penetration andUV‐damage prevention by nanoberries

“…Because of this, we propose the idea of a topical nanoformulation for the direct supply of blueberry antioxidants, with the aim of protecting the skin in situ from the attack of reactive species generated by UV rays. Recent research has shown that ethanolic extracts rich in phenolic compounds can effectively protect skin‐derived cells from UV damage …”