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Abstract Title:

Anti-inflammatory and cytotoxic activities of constituents isolated from the fruits of Ziziphus jujuba var. inermis Rehder.

Abstract Source:

Fitoterapia. 2019 Jul 5 ;137:104261. Epub 2019 Jul 5. PMID: 31284019

Abstract Author(s):

Huynh Nguyen Khanh Tran, Thao Quyen Cao, Jeong Ah Kim, Mi Hee Woo, Byung Sun Min

Article Affiliation:

Huynh Nguyen Khanh Tran

Abstract:

Three new sesquilignans, zijusesquilignans A-C (1-3), together with fifteen known compounds (4-18), were isolated from fruits of Ziziphus jujuba var. inermis Rehder (Rhamnaceae). Their chemical structures were established using spectroscopic analyses including 1D- and 2D-NMR, HR-EIMS, and ECD spectra. These compounds were assessed for their inhibitory effects on nitric oxide (NO) production. Of these compounds, 1-3 and 17 displayed inhibitory effects on NO production, with ICvalues ranging from 18.1 to 66.4 μM. Pretreatment with 1 and 17 significantly suppressed LPS-induced expression of nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) protein in cells. Moreover, compounds 1-3, 7, 9, and 17 exhibited cytotoxic activities against three human tumor cell lines, with ICvalues ranging from 8.4 to 44.9 μM.

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