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Showing 1-30 of 30 results for "40674" within Papers
Xiao-Lan Lv et al.
Zhong yao cai = Zhongyaocai = Journal of Chinese medicinal materials, 35(6), 917-919 (2012-12-15)
To study the chemical constituents of the roots of Vaccinium bracteatum. The constituents were separated and purified with chromatographic methods (including silica gel, Sephadex LH-20 and RP-18 column chromatography), and their structures were determined by spectroscopic methods (including MS, 1H-NMR
Liang Chen et al.
Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica, 37(9), 1241-1244 (2012-07-19)
To separate and identify chemical constituents from Coptis chinensis. The compounds were separated and purified by various chromatographic techniques. Their structures were identified on the basis of their physicochemical properties using spectral techniques such as NMR and MS. Thirteen compounds
J L Peñalvo et al.
European journal of clinical nutrition, 66(7), 795-798 (2012-05-17)
Lignan-rich diets have been associated with favorable health effects through improved metabolic profile. In this study, we hypothesized that dietary lignan intake could be also associated with childhood obesity. We studied prevalent obesity in relation to lignan intake within the
Hyo-Yeon Kim et al.
Journal of pharmacological sciences, 112(1), 105-112 (2010-01-23)
Forsythiae Fructus is known to have diuretic, anti-bacterial, and anti-inflammatory activities. This study examined the hepatoprotective effects of pinoresinol, a lignan isolated from Forsythiae Fructus, against carbon tetrachloride (CCl(4))-induced liver injury. Mice were treated intraperitoneally with vehicle or pinoresinol (25
An enantiocomplementary dirigent protein for the enantioselective laccase-catalyzed oxidative coupling of phenols.
Benjamin Pickel et al.
Angewandte Chemie (International ed. in English), 49(1), 202-204 (2009-12-01)
Sheng-Zhuo Huang et al.
Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica, 38(1), 64-69 (2013-04-20)
To study the chemical constituents from Daphne acutiloba. The constituents were separated by column chromatography, and their structures were elucidated by spectroscopic data analyses. Fifteen compounds were isolated from the EtOAc extract and identified as wikstroelide M (1), vesiculosin (2)
Arin Wikul et al.
Bioorganic & medicinal chemistry letters, 22(16), 5215-5217 (2012-07-24)
Defatted sesame seeds have been reported for hypoglycemic effect in mice and T2DM women. An attempted to identify active components responsible for this effect was conducted using α-glucosidase-guided fractionation, resulting in the isolation of various lignans. Of compounds isolated, only
Yun-Fang Li et al.
Journal of Asian natural products research, 15(9), 934-940 (2013-08-16)
Three new 7,8-secolignans, schisandlignans A-C (1, 2, and 4), one new dibenzocyclooctadiene lignan, schisandlignan D (5), together with nine known lignans 3',4'-dimethoxybenzoic acid (3″,4″-dimethoxyphenyl)-2-methyl-3-oxobutyl ester (3), gomisin J (6), rubrisandrin A(1b) (7), interiotherin B (8), schisantherin D (9), ( - )-machilusin (10)
Y Fukuhara et al.
Enzyme and microbial technology, 52(1), 38-43 (2012-12-04)
Bacterial genes for the degradation of major dilignols produced in lignifying xylem are expected to be useful tools for the structural modification of lignin in plants. For this purpose, we isolated pinZ involved in the conversion of pinoresinol from Sphingobium
Kye-Won Kim et al.
The Journal of biological chemistry, 287(41), 33957-33972 (2012-08-03)
How stereoselective monolignol-derived phenoxy radical-radical coupling reactions are differentially biochemically orchestrated in planta, whereby for example they afford (+)- and (-)-pinoresinols, respectively, is both a fascinating mechanistic and evolutionary question. In earlier work, biochemical control of (+)-pinoresinol formation had been
Lignans in triticale grain and triticale products
Makowska A, et al.,
Journal of Cereal Science, 93, 102939-102939 (2020)
Chen-yang Li et al.
Zhong yao cai = Zhongyaocai = Journal of Chinese medicinal materials, 33(5), 729-732 (2010-09-30)
To study the chemical constituents from Pachysandra terminalis and their antioxidant activity. Chemical constituents were isolated by repeated column chromatography (silica gel, Toyopearl HW-40C and preparative HPLC). The structures of isolated compounds were elucidated on the basis of spectral data
Ying Zhao et al.
Zhong yao cai = Zhongyaocai = Journal of Chinese medicinal materials, 33(4), 555-556 (2010-09-18)
To study the chemical constituents from Solanum nigrum. Compounds were isolated and purified by silica gel, Sephadex LH-20 and preparative HPLC. Their structures were identified by physicochemical properties and spectral analysis. Six compounds were isolated and identified as (+)-pinoresinol (I)
Tsung-Hsien Chou et al.
Planta medica, 78(9), 919-925 (2012-04-14)
A new orthoquinone, berryammone A (1), and four new naphthalenone derivatives, berryammone B (2), berryammone C (3), 6-O-methylberryammone C (4), and 4-O-methylberryammone C (5), have been isolated from the stem of Berrya ammonilla, together with eleven known compounds (6-16). The
Wen-Jie Li et al.
Molecules (Basel, Switzerland), 17(8), 8773-8781 (2012-07-27)
Two new compounds, (2S,3R)-methyl 7-hydroxy-2-(4-hydroxy-3-methoxy-phenyl)-3-(hydroxymethyl)-2,3-dihydrobenzofuran-5-carboxylate (1) and (4R,5S)-5-(3-hydroxy-2,6-dimethylphenyl)-4-isopropyldihydrofuran-2-one (2), tentatively named norcurlignan and limlactone, respectively, were isolated from Liriope muscari, together with the known compound (-)-pinoresinol (3). The structures of these compounds were elucidated and characterized on the basis of
Benjamin Pickel et al.
The FEBS journal, 279(11), 1980-1993 (2012-03-27)
Dirigent proteins impart stereoselectivity on the phenoxy radical-coupling reaction, yielding optically active lignans from two molecules of coniferyl alcohol. By an unknown mechanism, they direct the coupling of two phenoxy radicals toward the formation of optically active (+)- or (-)-pinoresinol.
Tina Jerman Klen et al.
Journal of agricultural and food chemistry, 63(15), 3859-3872 (2015-03-19)
All of the matrices entailed in olive oil processing were screened for the presence of known and new phenol constituents in a single study, combining an ultra high pressure liquid chromatography system with diode array and electrospray ionization quadrupole time-of-flight
Gang Ren et al.
Zhong yao cai = Zhongyaocai = Journal of Chinese medicinal materials, 35(1), 62-64 (2012-06-28)
To study the chemical constituents of the roots of Dendropanax chevalieri. The constituents were isolated by column chromatography with silica gel, Sephadex LH-20 gel and RP-18. Their structures were elucidated by analysis of spectral data and physicochemical properties. Eight compounds
Hyo Won Jung et al.
Neuroscience letters, 480(3), 215-220 (2010-07-06)
The activation of microglia plays an important role in a variety of brain disorders by the excessive production of inflammatory mediators such as nitric oxide (NO), prostaglandin E(2) (PGE(2)) and proinflammatory cytokines. We investigated here whether pinoresinol isolated from the
Yun Zhu et al.
PloS one, 12(2), e0171390-e0171390 (2017-02-06)
Mammalian lignans or enterolignans are metabolites of plant lignans, an important category of phytochemicals. Although they are known to be associated with estrogenic activity, cell signaling pathways leading to specific cell functions, and especially the differences among lignans, have not
Hyun Jung Kim et al.
Plant & cell physiology, 50(12), 2200-2209 (2009-11-06)
Lignans are a large class of secondary metabolites in plants, with numerous biological effects in mammals, including antitumor and antioxidant activities. Sesamin, the most abundant furofuran-class lignan in sesame seeds (Sesamum plants), is produced by the cytochrome P450 enzyme CYP81Q1
Sullivan Renouard et al.
Planta, 235(1), 85-98 (2011-08-13)
Secoisolariciresinol diglucoside (SDG), the main phytoestrogenic lignan of Linum usitatissimum, is accumulated in the seed coat of flax during its development and pinoresinol-lariciresinol reductase (PLR) is a key enzyme in flax for its synthesis. The promoter of LuPLR1, a flax
Alexandrine During et al.
The Journal of nutrition, 142(10), 1798-1805 (2012-09-08)
Dietary lignans show some promising health benefits, but little is known about their fate and activities in the small intestine. The purpose of this study was thus to investigate whether plant lignans are taken up by intestinal cells and modulate
Marcelo F de Araújo et al.
Natural product research, 25(18), 1713-1719 (2011-09-23)
The first phytochemical study of Simira eliezeriana Peixoto (Rubiaceae) allowed the isolation and structural determination of two new diterpenes named simirane A [(5R,6R,8R,9R,10S,11S,13S)-6β,11β-dihydroxy-2,4(18),15-erythroxylatrien-1-one] (1) and simirane B [(5S,8R,9R,10S,11S,13S)-11β-hydroxy-2,4(18),15-erythroxylatrien-1-one] (2), together with seven known compounds: sitosterol (3), stigmasterol (4), campesterol (5)
Ghayth Rigane et al.
Journal of the science of food and agriculture, 93(3), 527-534 (2012-08-14)
The aim of this work was to study the chemical characteristics of two Tunisian cultivars, namely Dhokar and Gemri-Dhokar, to analyse the fatty acids, sterols, triacylglycerols, triterpenic alcohols, and to determine the phenolic composition and oxidative stability. Among the rare
N Pellegrini et al.
Nutrition, metabolism, and cardiovascular diseases : NMCD, 20(1), 64-71 (2009-04-14)
It has been suggested that lignan intake may decrease the risk for cardiovascular disease (CVD) by modifying traditional risk factors as well as aortic stiffness. However, the role of dietary lignans on the vascular system is largely unknown. The objective
Frank C Schroeder et al.
Proceedings of the National Academy of Sciences of the United States of America, 103(42), 15497-15501 (2006-10-13)
Pinoresinol, a lignan of wide distribution in plants, is found to occur as a minor component in the defensive secretion produced by glandular hairs of caterpillars of the cabbage butterfly, Pieris rapae. The compound or a derivative is appropriated by
Fengxia Yue et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 18(51), 16402-16410 (2012-10-31)
Pinoresinol structures, featuring a β-β'-linkage between lignin monomer units, are important in softwood lignins and in dicots and monocots, particularly those that are downregulated in syringyl-specific genes. Although readily detected by NMR spectroscopy, pinoresinol structures largely escaped detection by β-ether-cleaving
Man-Li Zhang et al.
Journal of natural products, 75(12), 2076-2081 (2012-11-29)
A phytochemical investigation of Chromolaena odorata resulted in the isolation of five new compounds, 5aα,6,9,9aβ,10-pentahydro-10β-hydroxy-7-methylanthra[1,2-d][1,3]dioxol-5-one (1), 1,2-methylenedioxy-6-methylanthraquinone (2), 3-hydroxy-1,2,4-trimethoxy-6-methylanthraquinone (3), 3-hydroxy-1,2-dimethoxy-6-methylanthraquinone (4), and 7-methoxy-7-epi-medioresinol (5), together with 12 known compounds, odoratin (6), 3β-acetyloleanolic acid (7), ursolic acid (8), ombuin (9)
Kishan Chandra et al.
Biotechnology reports (Amsterdam, Netherlands), 22, e00336-e00336 (2019-04-25)
Members of Cytochromes P450 super family of enzymes catalyse important biochemical reactions in plants. Some of these reactions are so important that they contribute to enormous chemical diversity seen in plants. Many unique secondary metabolites formed by mediation of these
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