Results 101 to 110 of about 287 (117)

Oenothein B, a dimeric, hydrolysable tannin with macrocyclic structure, and accompanying tannins from Oenothera erythrosepala

Journal of the Chemical Society, Perkin Transactions 1, 1990
A new dimeric, hydrolysable tannin which we have named oenothein B (1), and eight accompanying compounds, including oenothein C (2), were isolated from the leaves of Oenothera erythrosepala. The macrocyclic structure of compound (1) was established from chemical and spectroscopic data.
Tsutomu Hatano, Taeko Yasuhara, Muneto Matsuda, Kazufumi Yazaki, Takashi Yoshida, Takuo Okuda   +5 more
openaire   +1 more source

Investigation on the inactivation of trypsin by oenothein B: isothermal titration calorimetry and docking studies

International Journal of Food Science & Technology, 2019
SummaryThe aim of this study was to investigate the inhibitory mechanism of oenothein B (OeB), a unique oligomer ellagitannin with a rigid structure, on porcine trypsin using fluorescence spectroscopy, isothermal titration calorimetry (ITC), circular dichroism (CD) and molecular docking.
Li Wang, Huijun Liang, Zitao Liu, Jingfeng Zhang, Yu Wang, Jian Xiao, Lichao Zhao   +6 more
openaire   +1 more source

Rational design of food-grade polyelectrolyte complex coacervate for encapsulation and enhanced oral delivery of oenothein B

Food & Function, 2017
Controlled release of OeB through GI tract using CPP–CS nanoparticles cross-linked with genipin was achievable.
Yaqi Lan, Li Wang, Sufang Cao, Yinger Zhong, Yunqi Li, Yong Cao, Lichao Zhao   +6 more
openaire   +2 more sources

A Macrocircular Ellagitannin, Oenothein B, Suppresses Mouse Mammary Tumor Gene Expression via Inhibition of Poly(ADP-ribose) Glycohydrolase

Biochemical and Biophysical Research Communications, 1995
Oenothein B, a macrocircular dimeric ellagitannin, was found to be a potent and specific inhibitor of poly(ADP-ribose) glycohydrolase. Oenothein B suppressed glucocorticoid-sensitive mouse mammary tumor virus (MMTV) transcription in 34I cells. This suppression was accompanied by inhibition of glucocorticoid-induced endogeneous de-poly(ADP-ribosyl)ation
K, Aoki, H, Maruta, F, Uchiumi, T, Hatano, T, Yoshida, S, Tanuma   +5 more
openaire   +2 more sources

Oenothein B from Eugenia uniflora leaves exerts pro-angiogenic effects by increasing VEGF and TNF-α levels

Cytokine
Oenothein B (OeB), a dimeric ellagitannin with a macrocyclic structure, is reported to have beneficial effects, including antioxidant, antitumor, antiviral, and antimutagenic effects, on human health. Despite the remarkable properties of OeB, its role in neovascularization process has not yet been evaluated.
Cinthia Aparecida, Silva, Jefferson Hollanda, Véras, Joyce Aves, Ventura, Carolina, Ribeiro E Silva, Clever Gomes, Cardoso, Suzana, da Costa Santos, Lee, Chen-Chen   +6 more
openaire   +2 more sources

Determination of Oenothein B as the Active 5-α-Reductase-Inhibiting Principle of the Folk Medicine Epilobium parviflorum

Journal of Natural Products, 1996
Several extracts from Epilobium parviflorum, a plant used in Central Europe for the treatment of prostate disorders, were evaluated in a biochemical assay with 5-alpha-reductase. The aqueous extract displaying inhibition of the enzyme was analyzed, the fraction responsible for this activity was purified, and the active compound identified as a ...
D. Lesuisse, J. Berjonneau, C. Ciot, P. Devaux, B. Doucet, J. F. Gourvest, B. Khemis, C. Lang, R. Legrand, M. Lowinski, P. Maquin, A. Parent, B. Schoot, G. Teutsch, H. Chodounská, A. Kasal   +15 more
openaire   +2 more sources

ChemInform Abstract: Oenothein B, a Dimeric, Hydrolysable Tannin (I) with Macrocyclic Structure, and Accompanying Tannins from Oenothera erythrosepala

ChemInform, 1991
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
T. HATANO, T. YASUHARA, M. MATSUDA, K. YAZAKI, T. YOSHIDA, T. OKUDA   +5 more
openaire   +1 more source

Synthesis of Lactonized Valoneoyl Group-Containing Ellagitannins, Oenothein C and Cornusiin B

HETEROCYCLES, 2020
Hitoshi Abe, Haruka Imai, Daichi Ogura, Yoshikazu Horino   +3 more
openaire   +1 more source

Contribution of oenothein B in the anti-inflammatory activity of Epilobium sp. extracts

Planta Medica, 2008
AK Kiss, U Kiarszys, J Piwowarski, A Staszewska, A Bazylko   +4 more
openaire   +1 more source

Variation in concentration of oenothein B in different samples of cultivated Epilobium angustifolium L

Planta Medica, 2008
AN Shikov, ON Pozharitskaya, SA Ivanova, VG Makarov, VP Tikhonov, B Galambosi   +5 more
openaire   +1 more source