Dibenzocyclooctadiene lignans from Kadsura polysperma and their antineurodegenerative activities.

State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, People's Republic of China.
Journal of Natural Products (Impact Factor: 3.95). 02/2012; 75(2):249-56. DOI: 10.1021/np200937h
Source: PubMed

ABSTRACT Eleven new dibenzocyclooctadiene lignans, polysperlignans A-K (1-11), and eight known analogues (12-19) were isolated from the stems of Kadsura polysperma. Their structures and absolute configurations were established using a combination of MS, NMR, CD, and single-crystal X-ray diffraction techniques. Selected compounds were evaluated for activity against β-amyloid- or hydrogen peroxide-induced neurotoxicity on PC12 cells, and 1, 2, 4, 5, 13, and 16 showed statistically significant neuroprotective effects in these in vitro assays.

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    ABSTRACT: In China, the plants of genus Kadsura had been used as the folk medicines for a long time and showed good effect of activating blood and dissolving stasis, promoting qi circulation to relieve pain, dispelling wind and eliminating dampness. The bioactivities of genus Kadsura were attributed to the existence of its characteristic chemical constituents. This review systematically summarized the traditional efficacy and medicinal application of genus Kadsura in China, chemical constituents and bioactivities of the plants of genus Kadsura. And, lignans and triterpenoids were the main bioactive constituents, which exhibited good anti-HIV, anti-tumor, anti-hepatitis, anti-oxidant, anti-platelet aggregation activities and neuroprotective effect etc. Moreover, some structure-activity relationships mining would greatly enrich the opportunity of finding new and promising lead compounds and promote the reasonable development and utilization of the plants of genus Kadsura.
    Phytomedicine: international journal of phytotherapy and phytopharmacology 04/2014; · 2.97 Impact Factor


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