Antioxidant, Anti-Inflammatory and Anti-Diabetic Activities of Tectona grandis Methanolic Extracts, Fractions, and Isolated Compounds

被引：4

作者：

Han, Mei ^{[1
,2
]}

Yang, Fengxian ^{[1
]}

Zhang, Kun ^{[1
,2
]}

Ni, Jiyan ^{[1
,2
]}

Zhao, Xia ^{[1
]}

Chen, Xuelin ^{[1
,2
]}

Zhang, Zhennan ^{[1
,2
]}

Wang, Hanlei ^{[1
,2
]}

Lu, Jing ^{[1
,2
]}

Zhang, Yumei ^{[1
]}

机构：

[1] Chinese Acad Sci, Key Lab Trop Plant Resource & Sustainable Use, Xishuangbanna Trop Bot Garden, Kunming 650223, Peoples R China

[2] Univ Chinese Acad Sci, Fac Life Sci, Beijing 100049, Peoples R China

来源：

ANTIOXIDANTS | 2023年 / 12卷 / 03期

关键词：

Tectona grandis; chemical composition; antioxidant activity; anti-inflammatory activity; alpha-glucosidase; glucose uptake; OXIDATIVE STRESS; LINN; INFLAMMATION; GLYCOSIDES; FLOWERS; ALPHA; DNA;

D O I：

10.3390/antiox12030664

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Tectona grandis is a traditional Dai medicine plant belonging to the Lamiaceae family, which can be used to treat malaria, inflammation, diabetes, liver disease, bronchitis, tumors, cholelithiasis, jaundice, skin disease and as an anti-helminthic. To find more novel therapeutic agents contained in this medicinal plant, the antioxidant, anti-inflammatory and anti-diabetic activities of T. grandis methanolic extract, fractions and compounds were evaluated. In this study, 26 compounds were isolated from the leaves and branches of T. grandis. Their structures were identified based on ex-tensive spectral experiments, including NMR, ESI-MS and comparison with published spectral data. Among them, compounds 1-2, 4-6, 9-14 and 16-22 were reported for the first time for this plant. The antioxidant activity screening results showed that compounds 5,15 and 23 had potent antioxidant capacities, with SC50 values from 0.32 to 9.92 mu mol/L, 0.92 to 1.10 mmol Trolox/L and 1.02 to 1.22 mmol Trolox/L for DPPH, ABTS and FRAP, respectively. In addition, their anti-inflammatory effects were investigated by releasing TNF-alpha, IL-1 beta and IL-6 through the use of mouse monocytic macrophages (RAW 264.7). Compounds 1,13,18 and 23 had the effects of reducing the expression of inflammatory factors. Compounds 13 and 18 were reported for the first time for their anti-inflammatory activities. Furthermore, the methanolic extract (ME), petroleum ether extract (PEE) and EtOAc extract (EAE) of T. grandis showed significant glucose uptake activities; compounds 21 and 23 significantly promoted glucose uptake of 3T3-L1 adipocytes at 40 mu M. Meanwhile, com-pounds 4, 5 and 7 showed significant inhibitory activities against a-glucosidase, with IC50 values of 14.16 +/- 0.34 mu mol/L, 19.29 +/- 0.26 mu mol/L and 3.04 +/- 0.08 mu mol/L, respectively. Compounds 4 and 5 were reported for the first time for their a-glucosidase inhibitory activities. Our investigation explored the possible therapeutic material basis of T. grandis to prevent oxidative stress and related diseases, especially inflammation and diabetes.

引用

页数：26

共 74 条

[31] Oxidative stress, aging, and diseases [J].