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New Cyclomyrsinol Diterpenes From Euphorbia Aellenii With Their Immunomodulatory Effects Publisher Pubmed



Ghanadian M1 ; Choudhary MI2 ; Ayatollahi AM3 ; Mesaik MA2 ; Abdalla OM2 ; Afsharypour S4
Authors

Source: Journal of Asian Natural Products Research Published:2013


Abstract

Chloroform-acetone extract of the aerial parts of Euphorbia aellenii Rech. f. (Euphorbiaceae) was investigated for its diterpenoidal constituents. This led to the isolation of two new and one known cyclomyrsinol-type diterpenes 1-3. The structures were elucidated on the basis of 1D and 2D 1H and 13C NMR techniques, and in vitro immunomodulatory activity was evaluated by standard proliferation of human peripheral blood lymphocytes. Results showed that all the three compounds were found to inhibit lymphocyte proliferation significantly (p < 0.05) at 50 μg/ml concentration. Among them, compound 2 showed more activity against phytohemagglutinin-activated T-cell proliferation with an IC50 of 40.4 ± 9.35 μg/ml. © 2013 Copyright Taylor and Francis Group, LLC.
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