@article {1177, title = {Protection of Erythrocytes against Lipoperoxidation and Antiinflammatory Effects of Ethanolic Extract of Encelia canescens Lam Leaves in Mice}, journal = {Pharmacognosy Journal}, volume = {12}, year = {2020}, month = {June 2020}, pages = {798-804}, type = {Original Article}, chapter = {798}, abstract = {

Background: Encelia canescens Lam is a plant traditionally used in Peru for medicinal purposes, and is attributed antioxidant properties, indicating that it could be used in the prevention of non-communicable diseases. Objective: This study aims to evaluate the protection of erythrocytes from lipoperoxidation and the anti-inflammatory effect of ethanolic extract of E. canescens leaves in mice. Materials and methods: Protection from lipoperoxidation was evaluated by inhibition of hemolysis and quantifying malondialdehyde (MDA) concentration against oxidative stress induced with hydrogen peroxide (H2O2) at 200, 150, 100, 50 and 25 μg/mL E. canescens concentrations. The 1\% carrageenan-induced air pouch model was used for evaluated inflammation, where albumin, total proteins, MDA, number and leukocyte differentiation were determined in the exudate, and a histopathological evaluation was performed. The concentrations evaluated were 100, 250 and 500 mg/kg of E. canescens Results: All the concentrations evaluated protected protected erythrocytes from lipoperoxidation (p\<0.05), being E.D. value 200 μg/mL. Regarding anti-inflammatory effect, the albumin, total proteins and MDA values of the treatment groups were lower than carrageenan 1\% group (p\<0.05), but, due to less leukocyte migration and presence of macrophages and the histopathological evaluation, the E.D value was 500 mg/kg. Conclusion: Ethanolic extracts of E. canescens leaves protect erythrocytes from lipoperoxidation and have dose-dependent anti-inflammatory effects maybe for presence of p-hydroxyacetophenone-derived, and these could be new safer anti-inflammatories.

}, keywords = {Antiinflammatory, Carrageenan, Encelia canescens Lam, Hemolysis, Lipoperoxidation, Malondialdehyde}, doi = {10.5530/pj.2020.12.114}, author = {Fern{\'a}ndez-Flores N and Rojas-Cardenas NF and Vásquez-Quispe AD and Chávez-Flores Juana E and Justil-Guerrero Hugo J and Parre{\~n}o-Tipian JM and Silva-Correa Carmen R and Villarreal-La Torre V{\'\i}ctor E} } @article {361, title = {Chemical Profile and Biological Activities of Essential oil of Aerial parts of Artemisia monosperma Del. Growing in Libya}, journal = {Pharmacognosy Journal}, volume = {9}, year = {2017}, month = {May 2017}, pages = {578-586}, type = {Original Article}, chapter = {578}, abstract = {

Background: From the bioactivity stand point Artemisia monosperma Del. is reputed to have antispasmodic and anthelmintic properties. Various types of secondary metabolites were reported in A. monosperma plants from different localities. Objective: The current study was planned aiming to investigate the influence of stage of development on the composition, antimicrobial, antiinflammatory and antioxidant activities of the essential oil derived from the aerial parts of the Libyan plants. Material and Methods: A. monosperma volatiles were hydro-distilled from aerial parts of Libyan plants, collected at different stages of growth: before flowering (A1), and at beginning (A2) and by the end (A3) of flowering stage. Yields ranged from 0.16-0.26 ml/100g fresh material (A3, highest). GC/FID and GC/MS analyses were performed. Results: Among 16-20 identified components (97.63-99.00\% of total composition), 11 were common in all samples. A1 and A2 showed close amounts of hydrocarbons (63.56 and 66.55\%), but lesser than A3 (88.36\%); monoterpenoids were mainly represented by sabinene (13.15-22.85\%), \β-pinene (9.00-24.03\%) and \β-cis-ocimene (3.73-12.92\%); while sesquiterpenoids appeared absent. Among oxygenated components (11.29, 31.08 and 35.44 \% in A3, A2 and A1), bornyl acetate was the major monoterpenoid (8.00-31.00\%, highest in A1); and the sesquiterpenoid, \β-eudesmol (8.01\%) was detected in A2 only. Moreover, A2 demonstrated significant antifungal effect against Aspergillus fumigatus and Geotricum candidum (MIC 0.98 and 0.24 \μg/ml). Conclusion: A3 exerted the highest anti-inflammatory activity as compared to the other volatiles. A1 restored the reduced blood GHS level in diabetic animals almost as efficiently as Vitamin E. The antioxidant activity of the volatiles is decreased during the flowering stage, being the highest before flowering (A1); this could be associated to the decreasing bornyl acetate content of the samples.

}, keywords = {Anti-oxidant, Antiinflammatory, Antimicrobial, Artemisia monosperma, Essential oil composition, GC-MS, Libya.}, doi = {10.5530/pj.2017.4.92}, url = {/files/PJ-9-4/10.5530pj.2017.4.92}, author = {Soheir Mohamed El Zalabani and Soad Hanna Tadros and Abeer Mohamed El Sayed and Areej Almaktouf Daboub and Amany Amen Sleem} }