Innovare International Journal of Pharmacy and Pharmaceutical Sciences Academic Sciences ISSN- 0975-1491 Vol 7, Issue 9, 2015 Original Article ANTIOXIDANT AND THE IMMUNOMODULATORY ACTIVITIES EXHIBITED BY THREE PLANTS FROM LAMIACEAE FAMILY MERYEM NASSARa,b, SAKINA ZERIZERa*, ZAHIA KABOUCHEc, AHMED KABOUCHEc, SARA BECHKRIc aUniversité des frères Mentouri Constantine, Department of Ecology, Constantine, Algeria. Option Biotechnology, Laboratory: Ethnobotany Palynology and Ethnopharmacology –Toxicology Constantine, Algeria, bUniversiy of 20 Aout 1955 Skikda Department of Biology, a* Université des frères Mentouri Constantine, Department of Animal Biology, Laboratory: Ethnobotany Palynology and Ethnopharmacology –Toxicology Constantine, Algeria; c Université des frères Mentouri Constantine, department of chemistry, laboratory of therapeutic substances, 25000 Constantine, Algeria Email:
[email protected] Received: 29 Dec 2014 Revised and Accepted: 22 Jul 2015 ABSTRACT Objective: The aim of this work was screening of the antioxidant activity and immunomodulatory effects of the crude extracts from the aerial parts of three Algerian endemic species from Lamiaceae. Methods: DPPH radical scavenging assay was used to find the antioxidant activity of Stachys circinata, Salvia verbenaca and Thymus guyonii and the immunostimulant potential of these plants extracts on the phagocytic activity which was measured by the carbon clearance rate test. Results: Our results obtained in this study shown that the IC50 of Thymus guyonii, Salvia verbenaca and Stachys circinata were 15,90;47,50 and 54,92 respectively. The phagocytic index was increased significantly in animals injected with Stachys circinata and Salvia verbenaca at doses of 200 mg/kg P≤0,05 but not significantly with Thymus guyonii when compared to the control group. The clearance rate of carbon was faster but not significantly P≥ 0,05 and the corrected phagocytic index α was increased at the group GIII with Salvia verbenaca but not significantly when compared with other groups P≥ 0,05.