Results 81 to 90 of about 297 (122)

Update of Natural Products and Their Derivatives Targeting Epstein-Barr Infection. [PDF]

open access: yesViruses
Pennisi R   +5 more
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Oenothein B's contribution to the anti-inflammatory and antioxidant activity of Epilobium sp

Phytomedicine, 2011
Willow herb tea or preparation are available and relatively popular in the European market, and claimed to be effective inter alia because of their anti-inflammatory activity. The present study is therefore aimed at comparing the anti-inflammatory and antioxidant activity of extracts of the three most popular Epilobium species (E.
Anna Kiss   +2 more
exaly   +3 more sources

Investigation on the Interaction Behavior Between Oenothein B and Pepsin by Isothermal Titration Calorimetry and Spectral Studies

Journal of Food Science, 2019
Abstract Oenothein B (OeB) is a dimeric macrocyclic ellagitannin isolated from Herbs and fruits that have a variety of biological activities. In order to better understand the effect of OeB on the activity of the digestive enzyme pepsin, interactions between OeB and pepsin were investigated in vitro under ...
Zitao Liu, Yong Cao, Lichao Zhao
exaly   +3 more sources

Inhibitory mechanism of lactoferrin on antibacterial activity of oenothein B: isothermal titration calorimetry and computational docking simulation

Journal of the Science of Food and Agriculture, 2020
AbstractBACKGROUNDMany foods contain proteins and polyphenols, but there is a poor understanding of the nature of the inhibitory effect of protein on the biologic activity of polyphenols. The inhibitory mechanism of the food protein lactoferrin on the antibacterial activity of oligomeric ellagitannin oenothein B (OeB) was investigated using ...
Zitao Liu, Yong Cao, Jian Xiao
exaly   +3 more sources

Determination of Macrocyclic Ellagitannin Oenothein B in Plant Materials by HPLC‐DAD‐MS: Method Development and Validation

Phytochemical Analysis, 2012
ABSTRACTIntroductionOenothein B (OeB) is a dimeric macrocyclic ellagitannin occurring mainly in the genus Oenothera. In the literature no validated HPLC method for quantification of this compound has been reported.ObjectiveTo develop and validate an efficient HPLC method for quantification of OeB in plant materials.MethodologyExtraction conditions of ...
Anna Kiss   +2 more
exaly   +3 more sources

Induction of neutral endopeptidase activity in PC-3 cells by an aqueous extract of Epilobium angustifolium L. and oenothein B

Phytomedicine, 2006
An aqueous extract of Epilobium angustifolium and its main compound oenothein B (OeB), a dimeric macrocyclic ellagitannin, are specifically able to induce the neutral endopeptidase (NEP) in prostate cancer cells. The angiotensin-converting enzyme (ACE) is not influenced.
Anna Kiss, M F Melzig, M F Melzig
exaly   +3 more sources

Inhibition of 5α-Reductase and Aromatase by the Ellagitannins Oenothein A and Oenothein B fromEpilobiumSpecies

Planta Medica, 1997
Species of the genus Epilobium (Onagraceae) have been investigated for their activity against 5 alpha-reductase and aromatase, two enzymes which are involved in the aetiology of benign prostatic hyperplasia (BPH). Activity-guided fractionation has led to the identification of two macrocyclic ellagitannins, oenothein A (1) and oenothein B (2), as the ...
Ducrey B   +4 more
openaire   +3 more sources

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