Yulu Tian, Yazi Wei, Haowen Luo, Xinyi Chen, Jie Ma, Yingda Zang, Tiantai Zhang, Dongming Zhang, Chuangjun Li
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Diterpenoids and lignans from the stems of Tripterygium wilfordii and their anti-inflammatory activities.
Two undescribed diterpenoids (1-2) and three lignans (3a/3b, 4a), together with sixteen known compounds (4b, 5-9, 10a/10b-14a/14b) were obtained from the stems of Tripterygium wilfordii (T. wilfordii). The structures of these new compounds were elucidated by detailed spectroscopic analyses, and their absolute configurations were estabished by ECD calculations. Some compounds exhibited moderate inhibitory activities against IL-6 production in LPS-stimulated RAW 264.7 macrophages in vitro. Compound 5 showed significant anti-inflammatory activity in vitro (IC50, 0.77 μM) and inhibited macrophage polarization towards a pro-inflammatory phenotype.
期刊介绍：
Fitoterapia is a Journal dedicated to medicinal plants and to bioactive natural products of plant origin. It publishes original contributions in seven major areas:
1. Characterization of active ingredients of medicinal plants
2. Development of standardization method for bioactive plant extracts and natural products
3. Identification of bioactivity in plant extracts
4. Identification of targets and mechanism of activity of plant extracts
5. Production and genomic characterization of medicinal plants biomass
6. Chemistry and biochemistry of bioactive natural products of plant origin
7. Critical reviews of the historical, clinical and legal status of medicinal plants, and accounts on topical issues.
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