Essential oil from Galls formed on leaves of Pistacia atlantica Desf. : new in-vitro and in-silico studies of anti-inflammatory activities

Inflammation is an important component of the immune response to pathogens and damaged cells. This study aims to assess and compare of anti-inflammatory activities in-vitro and in-silico of essential oils from galls formed on leaves of Pistacia atlantica Desf from two regions in Algeria (four samples from Ain-oussera and four samples from Laghouat). The anti-inflammatory activity was achieved by Nitric oxide inhibitory activity and viability of LPS‑activated RAW 264.7 macrophages, and inhibition activity of 15-Lipoxygenase (LOX), quercetin was used as a positive control. The essential oils from leave gall of Pistacia atlantica species is able to inhibited 15-LOX enzyme with IC50 0.004mg/mL and also inhibited the production of NO produced by macrophages (99.17%) without significant cytotoxic effect (78% cell viability). The molecular docking study confirm the inhibitory effect of the major compounds of the studied essential oil, even ADMET analysis indicate that the major compounds are not toxic.Ministry of Higher Education and Scientific Research of Algeriahttp://www.elsevier.com/locate/sajb2022-10-07hj2021Paraclinical Science