Results 201 to 210 of about 23,718 (250)
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The Antiviral Action of Lignans
Planta Medica, 1989A total of 18 purified lignans was evaluated for antiviral activity against murine cytomegalovirus (CMV) and Sindbis virus, by means of different treatment regimens. Podophyllotoxin and alpha-peltatin were the most potent compounds, and they apparently inhibited murine CMV at an essential early step in the replication cycle after the adsorption of ...
W D, MacRae, J B, Hudson, G H, Towers
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Lignans have garnered significant interest in various fields of pharmaceuticals, nutrition, and pesticides due to their diverse biological activities. This chapter primarily focuses on the extraction and purification methods of lignans from Schisandra, followed by an extensive examination of qualitative and quantitative analytical techniques, including
Hye Mi Kim, Chul Young Kim
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Hye Mi Kim, Chul Young Kim
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Naphthalene Analogues of Lignans
The Journal of Organic Chemistry, 2002The methodology for the synthesis of podophyllotoxin and thuriferic acid-type lignans has been applied to derivatives carrying a naphthalene moiety. Starting from the 1,3-dithiane of 2-naphthaldehyde afforded the expected analogues in the 2,1-naphthalene series.
Blanca, Madrigal +4 more
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1990
Lignans are widely occurring plant compounds and are closely related to lignin, which forms the woody component of trees and other plants. The lignans are characterized by their dimeric composition from cinnamic acids, and they are attracting increasing attention as a result of their pharmacological properties.
David C. Ayres, John D. Loike
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Lignans are widely occurring plant compounds and are closely related to lignin, which forms the woody component of trees and other plants. The lignans are characterized by their dimeric composition from cinnamic acids, and they are attracting increasing attention as a result of their pharmacological properties.
David C. Ayres, John D. Loike
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Chromatographic analysis of lignans
Journal of Chromatography A, 2006Methods and procedures for analysis of lignans in trees and other plants are reviewed. The importance of cautious sample handling and pretreatment procedures to avoid contamination, loss of sample, and unwanted chemical reactions is discussed. Sequential extraction with a non-polar solvent followed by extraction with acetone or ethanol is recommended ...
S M, Willför, A I, Smeds, B R, Holmbom
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2020
Plant lignans constitute a group of diphenolic compounds, including matairesinol, pinoresinol, medioresinol, lariciresinol, sesamin, syringaresinol, secoisolariciresinol, secoisolariciresinol diglucoside, and hydroxymatairesinol, widely distributed in foods and beverages, of which the most important are whole grains, seeds, nuts, vegetables, berries ...
Knudsen, Knud Erik Bach +4 more
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Plant lignans constitute a group of diphenolic compounds, including matairesinol, pinoresinol, medioresinol, lariciresinol, sesamin, syringaresinol, secoisolariciresinol, secoisolariciresinol diglucoside, and hydroxymatairesinol, widely distributed in foods and beverages, of which the most important are whole grains, seeds, nuts, vegetables, berries ...
Knudsen, Knud Erik Bach +4 more
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Aryltetralone lignans and 7,8-seco-lignans from Holostylis reniformis
Phytochemistry, 2004Aryltetralone lignans and two 7,8-seco-lignans were isolated from the acetone and hexane extracts of the roots of Holostylis reniformis, together with (-)-galbacin. Their structures were determined by spectroscopic methods.
Da Silva, Tito, Lopes, Lucia M.X.
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Biosynthetic relationship of aryltetralin lactone lignans to dibenzylbutyrolactone lignans
Phytochemistry, 1986Abstract Feeding experiments in Podophyllum hexandrum plants have shown that the dibenzylbutyrolactone lignan yatein is a satisfactory precursor of the aryltetralin lignan podophyllotoxin. The corresponding cis isomer of yatein was also incorporated, but to a lesser extent, and probably via yatein.
Widad M. Kamil, Paul M. Dewick
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Critical Reviews in Clinical Laboratory Sciences, 2007
This review focuses on the possible role in human health of the consumption of lignan-rich foods. Most of the plant lignans in human foods are converted by the intestinal microflora in the upper part of the large bowel to enterolactone and enterodiol, called mammalian or enterolignans.
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This review focuses on the possible role in human health of the consumption of lignan-rich foods. Most of the plant lignans in human foods are converted by the intestinal microflora in the upper part of the large bowel to enterolactone and enterodiol, called mammalian or enterolignans.
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