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Keywords = Acanthopanax gracilistylus

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14 pages, 2102 KiB  
Article
Anti-Diabetic Effects of Acankoreagenin from the Leaves of Acanthopanax Gracilistylus Herb in RIN-m5F Cells via Suppression of NF-κB Activation
by Man-Xia Lu, Yang Yang, Qin-Peng Zou, Jiao Luo, Bin-Bei Zhang, Xiang-Qian Liu and Eun-Hee Hwang
Molecules 2018, 23(4), 958; https://doi.org/10.3390/molecules23040958 - 19 Apr 2018
Cited by 22 | Viewed by 5756
Abstract
Diabetes mellitus is a chronic degenerative disease that causes long-term complications and represents a serious public health problem. In this manuscript, acankoreagenin isolated from the leaves of Acanthopanax gracilistylus (LAG) is thought to possess excellent anti-diabetic properties. In vitro, anti-diabetic activities were assessed [...] Read more.
Diabetes mellitus is a chronic degenerative disease that causes long-term complications and represents a serious public health problem. In this manuscript, acankoreagenin isolated from the leaves of Acanthopanax gracilistylus (LAG) is thought to possess excellent anti-diabetic properties. In vitro, anti-diabetic activities were assessed based on the inhibitory activities with α-glucosidase (IC50 13.01 μM), α-amylase (IC50 30.81 μM), and PTP1B (IC50 16.39 μM). Acankoreagenin showed better anti-diabetic effects. Then, an investigation was performed to analyze the insulin secretion effects of the insulin-secreting cell line in RIN-m5F cells. It was found that acankoreagenin could increase the insulin release in RIN-m5F cells. It was also found that acankoreagenin reduced NO production, activity of caspase-3, and the reactive oxygen species levels in the cells injured by processing of cytokines. In western blotting, inactivation of NF-κB signaling was confirmed. Acankoreagenin (20 μM) showed a higher I-κBα expression and lower NF-κB expression than the control group and showed a better expression than the positive control L-NAME (1 mM) (p < 0.05). This study demonstrates the anti-diabetic effects of acankoreagenin in vitro and suggests acankoreagenin might offer therapeutic potential for treating diabetes mellitus. Full article
(This article belongs to the Special Issue Medicinal Plants and Diabetes)
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10 pages, 1011 KiB  
Article
Lupane Triterpenes from the Leaves of Acanthopanax gracilistylus
by Xiao-Jun Li, Qin-Peng Zou, Xiang Wang, Kwan-Woo Kim, Mao-Fang Lu, Sung-Kwon Ko, Chang-Soo Yook, Youn-Chul Kim and Xiang-Qian Liu
Molecules 2018, 23(1), 87; https://doi.org/10.3390/molecules23010087 - 1 Jan 2018
Cited by 15 | Viewed by 4840
Abstract
The phytochemical study on the leaves of Acanthopanax gracilistylus (Araliaceae) resulted in the discovery of a new lupane-triterpene compound, acangraciligenin S (1), and a new lupane-triterpene glycoside, acangraciliside S (2), as well as two known ones, 3α,11α-dihydroxy-lup-20(29)-en-23,28-dioic acid ( [...] Read more.
The phytochemical study on the leaves of Acanthopanax gracilistylus (Araliaceae) resulted in the discovery of a new lupane-triterpene compound, acangraciligenin S (1), and a new lupane-triterpene glycoside, acangraciliside S (2), as well as two known ones, 3α,11α-dihydroxy-lup-20(29)-en-23,28-dioic acid (3) and acankoreoside C (4). Their chemical structures were elucidated by mass, 1D- and 2D-nuclear magnetic resonance (NMR) spectroscopy. The chemical structures of the new compounds 1 and 2 were determined to be 1β,3α-dihydroxy-lup-20(29)-en-23, 28-dioic acid and 1β,3α-dihydroxy-lup-20(29)-en-23,28-dioic acid 28-O-[α-l-rhamnopyranosyl-(1→4)-β-d-glucopyranosyl-(1→6)-β-d-glucopyranosyl] ester, respectively. The anti-neuroinflammatory activity of the selective compounds, 1 and 3, were evaluated with lipopolysaccharide (LPS)-induced BV2 microglia. The tested compounds showed moderate inhibitory effect of nitric oxide (NO) production. Full article
(This article belongs to the Section Natural Products Chemistry)
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