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Green chemistry is a useful tool for producing valuable chemicals from biomass. However, extracted compounds need to be tested for safety and efficacy before their use in humans. Here we investigate the chemical composition and biological effects of a leaves  Pistacia lentiscus L . supercritical carbon dioxide (SCCO 2 ) extract. Terpenes represented the main extract fraction, with Germacrene D (11.18%), delta-cadinene (10.54%), and alpha-pinene (8.7%) the most abundant molecules. Challenged with endothelial cells (ECs), increasing extract concentrations failed to affect cell proliferation or promote cell toxicity. ROS assessment in unstressed and H 2 O 2 -treated ECs revealed an extract dose-dependent antioxidant activity. Exposition of H 2 O 2 -treated ECs to increasing extract concentrations dose-dependently counteracted H 2 O 2 -induced cell impairments. The extract significantly counteracted fetal calf serum-induced ECs migration. For the first time, we report that a SCCO 2  extract obtained from PL leaves is safe on ECs and may be a useful source of valuable compounds with vasculoprotective properties.

natural product research

Cytoprotective, antioxidant, and anti-migratory activity of  Pistacia lentiscus L . supercritical carbon dioxide extract on primary human endothelial cells