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https://www.readbyqxmd.com/read/28822186/-lignan-glycosides-and-sucrose-esters-from-roots-of-securidaca-inappendiculata
#1
Zhi Wang, Xue-Dong Yang, Hai-Yan Zha, Li-Na Guo, Dan Shen, Li-Zhen Xu, Shi-Lin Yang
Nine compounds, including five lignan glycosides (1-5), three sucrose esters (6-8), and one organic acid ester (9), were isolated from the ethanol extract of the roots of Securidaca inappendiculata by various chromatographic methods including silica gel, MPLC and preparative HPLC. Their structures were elucidated as acernikol-4″-O-β-D-glucopyranoside (1), (7R, 8S)-dihydrodehydrodiconiferyl alcohol 9-O-β-D-glucopyranoside (2), (7R, 8S)-dihydrodehydrodiconiferyl alcohol 4-O-β-D-glucopyranoside (3), (7R, 8S)-dihydrodehydrodiconiferyl alcohol 9'-O-β-D-glucopyranoside (4), (7R, 8S)-5-methoxydihydrodehy-drodiconiferyl alcohol 4-O-β-D-glucopyranoside (5), 3, 6'-O-diferuloylsucrose (6), 3-O-feruloyl-6'-O-sinapoylsucrose (7), sibricose A5 (8), and mehyl ferulate (9) on the basis of 1H-, 13C-NMR and MS experiments...
June 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28821449/daphnauranins-a-and-b-two-new-antifeedants-isolated-from-daphne-aurantiaca-roots
#2
Sheng-Zhuo Huang, Qing-Yun Ma, Fan-Dong Kong, Zhi-Kai Guo, Qi Wang, Hao-Fu Dai, Yu-Qing Liu, Jun Zhou, You-Xing Zhao
Daphnauranins A (1) and B (2), two sesquiterpenoids were isolated from the roots of Daphne aurantiaca Diels. One is an unprecedented 5/7 oxacycloheptane ring system, the other is a sesquiterpene-lignan complex. Their structures were elucidated by comprehensive spectroscopic methods including MS and NMR. Their absolute configurations were further confirmed by the quantum ECD calculations. Daphnauranins A and B showed anti-insect activities against male fruit fly with anti-feeding rate up to 46.2±7.1 and 44...
August 15, 2017: Fitoterapia
https://www.readbyqxmd.com/read/28821392/schisandra-chinensis-extract-decreases-chloroacetaldehyde-production-in-rats-and-attenuates-cyclophosphamide-toxicity-in-liver-kidney-and-brain
#3
Jianxiu Zhai, Feng Zhang, Shouhong Gao, Li Chen, Ge Feng, Jun Yin, Wansheng Chen
ETHNOPHARMACOLOGICAL RELEVANCE: Schisandra chinensis (Turcz.) Baill (S. chinensis) has been used for thousands years in China, and is usually applied in treatment of urinary tract disorders and liver injury. S. chinensis extract (SCE) has board protective effects on liver, kidney and nervous system. Schisandra lignans are generally considered as the bioactive components of SCE. AIM OF THE STUDY: To investigate the pharmacokinetic herb-drug interactions (HDIs) between SCE and cyclophosphamide (CTX)...
August 15, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28817364/association-between-dietary-phytoestrogens-intakes-and-prostate-cancer-risk-in-sicily
#4
Giorgio I Russo, Marina Di Mauro, Federica Regis, Giulio Reale, Daniele Campisi, Marina Marranzano, Arturo Lo Giudice, Tatiana Solinas, Massimo Madonia, Sebastiano Cimino, Giuseppe Morgia
OBJECTIVE: In this study we aimed to investigate the association between dietary phytoestrogen consumption and prostate cancer in a sample of southern Italian individuals. METHODS: A population-based case-control study on the association between prostate cancer and dietary factors was conducted from January 2015 to December 2016 in a single institution of the municipality of Catania, southern Italy (Registration number: 41/2015). A total of 118 histopathological-verified prostate cancer (PCa) cases and a total of 222 controls were collected...
August 17, 2017: Aging Male: the Official Journal of the International Society for the Study of the Aging Male
https://www.readbyqxmd.com/read/28816401/study-of-organic-acids-in-schisandrae-chinensis-fructus-after-vinegar-processing
#5
Fangzhou Yin, Hui Dai, Lin Li, Tuling Lu, Weidong Li, Baochang Cai, Wu Yin
The ripened fruit of Schisandrae Chinensis Fructus has unique medical properties in Chinese medicine. It is commonly used after vinegar steaming. Vinegar steaming changes the color of Schisandrae Chinensis Fructus from red to black and enhances its acidic and astringent properties. Lignans are the well-investigated components in this herb. However, Schisandrae Chinensis Fructus is acidic in the theory of Chinese medicine, and whether vinegar processing changes its organic acid components remains largely unknown...
August 17, 2017: Journal of Separation Science
https://www.readbyqxmd.com/read/28814228/the-effects-and-action-mechanisms-of-phytoestrogens-on-vasomotor-symptoms-during-menopausal-transition-thermoregulatory-mechanism
#6
Haryati Ahmad Hairi, Ahmad Nazrun Shuid, Nurul Izzah Ibrahim, Jamia Azdina Jamal, Norazlina Mohamed, Isa Naina Mohamed
Phytoestrogens has recently been claimed to positively influence menopausal discomforts, including hot flashes. However, little is known about the influence of phytoestrogens on core body temperature during estrogen fluctuation at menopause. With many published findings that phytoestrogens could relieve menopausal complaints, the present review was aimed at assessing the effects of phytoestrogens on thermoregulatory mechanism during menopausal transition. Thephytoestrogens of interest in relation to human health include isoflavones, lignans, coumestans and stilbenes, which are widely distributed within nature...
August 16, 2017: Current Drug Targets
https://www.readbyqxmd.com/read/28814115/neuraminidase-inhibitory-activity-by-compounds-isolated-from-aerial-parts-of-rhinacanthus-nasutus
#7
Hee Jae Kwak, SeonJu Park, Nanyoung Kim, Guijae Yoo, Jun Hyung Park, Youngse Oh, Nguyen Xuan Nhiem, Seung Hyun Kim
Rhinacanthus nasutus (L.) Kurz (Acanthaceae) is known as traditional medicine for the treatment of various diseases, such as cancer, fungal infections, herpes virus infections and several types of skin diseases in South-East Asian countries. In this study, eight compounds 1-8 were isolated from the aerial parts of R. nasutus. The structures of compounds were determined by the spectroscopic methods, including 1D and 2D NMR. The isolated compounds were evaluated for neuraminidase inhibitory activity. Several lignans, 2,3-bis[(4-hydroxy-3,5-dimethoxyphenyl)methyl]-1,4-butanediol (5) and 8,8'-bisdihydrosiringenin glucoside (6), significantly inhibited neuraminidase activity, which was comparable to the positive controls, mangiferin and oseltamivir...
August 17, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28808723/plasma-metabolite-abundances-are-associated-with-urinary-enterolactone-excretion-in-healthy-participants-on-controlled-diets
#8
Fayth L Miles, Sandi L Navarro, Yvonne Schwarz, Haiwei Gu, Danijel Djukovic, Timothy W Randolph, Ali Shojaie, Mario Kratz, Meredith A J Hullar, Paul D Lampe, Marian L Neuhouser, Daniel Raftery, Johanna W Lampe
Enterolignans, products of gut bacterial metabolism of plant lignans, have been associated with reduced risk of chronic diseases, but their association with other plasma metabolites is unknown. We examined plasma metabolite profiles according to urinary enterolignan excretion in a cross-sectional analysis using data from a randomized crossover, controlled feeding study. Eighty healthy adult males and females completed two 28-day feeding periods differing by glycemic load, refined carbohydrate, and fiber content...
August 15, 2017: Food & Function
https://www.readbyqxmd.com/read/28805750/inositol-derivatives-and-phenolic-compounds-from-the-roots-of-taraxacum-coreanum
#9
Eun Jin Mo, Jong Hoon Ahn, Yang Hee Jo, Seon Beom Kim, Bang Yeon Hwang, Mi Kyeong Lee
In this study, the characterization of chemical constituents and biological activity of the roots of Taraxacum coreanum (Asteraceae) was attempted. Phytochemical investigation of the roots of T. coreanum led to the isolation of two new inositol derivatives, taraxinositols A (1) and B (2), and a new phenolic compound, taraxinol (16), together with twenty known compounds including four inositol derivatives, neo-inositol-1,4-bis (4-hydroxybenzeneacetate) (3), chiro-inositol-1,5-bis(4- hydroxybenzeneacetate) (4), chiro-inositol-2,3-bis (4-hydroxybenzeneacetate) (5) and chiro-inositol- 1,2,3-tris (4-hydroxybenzeneacetate) (6), nine phenolic compounds: p-hydroxybenzaldehyde (7), vanillin (8), syringaldehyde (9), vanillic acid (10), 4-methoxyphenylacetic acid (11), 4-hydroxy- phenylacetic acid methyl ester (12), optivanin (13), isoferulic acid (14) and dihydroconiferyl alcohol (15), four coumarins: nodakenetin (17), decursinol (18), prangol (19) and isobyakangelicin (20), and three lignans: syringaresinol-4'-O-β-d-glucoside (21), syringaresinol (22), and pinoresinol (23)...
August 14, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28793307/larrea-tridentata-a-novel-source-for-anti-parasitic-agents-active-against-entamoeba-histolytica-giardia-lamblia-and-naegleria-fowleri
#10
Bharat Bashyal, Linfeng Li, Trpta Bains, Anjan Debnath, Daniel V LaBarbera
Protozoan parasites infect and kill millions of people worldwide every year, particularly in developing countries where access to clean fresh water is limited. Among the most common are intestinal parasites, including Giardia lamblia and Entamoeba histolytica. These parasites wreak havoc on the epithelium lining the small intestines (G. lamblia) and colon (E. histolytica) causing giardiasis and amebiasis, respectively. In addition, there are less common but far more deadly pathogens such as Naegleria fowleri that thrive in warm waters and infect the central nervous systems of their victims via the nasal passages...
August 9, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28783086/bioactive-constituents-from-the-whole-plants-of-gentianella-acuta-michx-hulten
#11
Zhijuan Ding, Yanxia Liu, Jingya Ruan, Shengcai Yang, Haiyang Yu, Meiling Chen, Yi Zhang, Tao Wang
As a Mongolian native medicine and Ewenki folk medicinal plant, Gentianella acuta has been widely used for the treatment of diarrhea, hepatitis, arrhythmia, and coronary heart disease. In the course of investigating efficacy compounds to treat diarrhea using a mouse isolated intestine tissue model, we found 70% EtOH extract of G. acuta whole plants had an inhibitory effect on intestine contraction tension. Here, nineteen constituents, including five new compounds, named as gentiiridosides A (1), B (2), gentilignanoside A (3), (1R)-2,2,3-trimethyl-4-hydroxymethylcyclopent-3-ene-1-methyl-O-β-d-glucopyranoside (4), and (3Z)-3-hexene-1,5-diol 1-O-α-l-arabinopyranosyl(1→6)-β-d-glucopyranoside (5) were obtained from it...
August 6, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28780467/in-vitro-schistosomicidal-and-antiviral-activities-of-arctium-lappa-l-asteraceae-against-schistosoma-mansoni-and-herpes-simplex-virus-1
#12
Mirna Meana Dias, Ohana Zuza, Lorena R Riani, Priscila de Faria Pinto, Pedro Luiz Silva Pinto, Marcos P Silva, Josué de Moraes, Ana Caroline Z Ataíde, Fernanda de Oliveira Silva, Alzira Batista Cecílio, Ademar A Da Silva Filho
Schistosomiasis and herpes diseases represent serious issues to the healthcare systems, infecting a large number of people worldwide, mainly in developing countries. Arctium lappa L. (Asteraceae), known as "bardana" and "burdock", is a medicinal plant popularly used for several purposes, including as antiseptic. In this study, we evaluated the in vitro schistosomicidal and antiherpes activities of the crude extract of A. lappa, which have not yet been described. Fruits of A. lappa L. were extracted by maceration with ethanol: H2O (96:4 v/v) in order to obtain the hydroalcoholic extract of A...
August 3, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28780087/short-communication-the-mammalian-lignan-enterolactone-is-absorbed-by-newborn-dairy-calves-fed-enterolactone-enriched-milk
#13
C P Ghedini, N L Whitehouse, D C Moura, A S Oliveira, A F Brito
Flaxseed is the richest source of the plant lignan secoisolariciresinol diglucoside, which is converted to the mammalian lignans enterolactone (EL) and enterodiol by the gut microbiota of ruminants and humans. Enterolactone has been associated with improved animal and human health due to its antioxidant and anticarcinogenic properties. The objective of this study was to determine the pharmacokinetics of EL in newborn dairy calves fed milk replacer or EL-enriched milk. We hypothesized that newborn Holstein calves fed EL-enriched milk would have greater area under the curve and plasma concentration of EL compared with those fed milk replacer...
August 2, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28770828/sesamin-alleviates-blood-brain-barrier-disruption-in-mice-with-experimental-traumatic-brain-injury
#14
Ying-Liang Liu, Zhi-Ming Xu, Guo-Yuan Yang, Dian-Xu Yang, Jun Ding, Hao Chen, Fang Yuan, Heng-Li Tian
Sesamin, a major lignan of sesame oil, was reported to have neuroprotective effects in several brain injury models. However, its protective action in maintaining blood-brain barrier (BBB) integrity has not been studied. In this study we investigated the effects of sesamin on the BBB in a mouse model of traumatic brain injury (TBI) and explored the underlying mechanisms. Adult male C57BL/6 mice were subjected to a controlled cortical impact (CCI) injury and then received sesamin (30 mg·kg(-1)·d(-1), ip). The mice were euthanized on the 1(st) and 3(rd) days after CCI injury and samples were collected for analysis...
August 3, 2017: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/28769988/chemical-differentiation-of-dendrobium-officinale-and-dendrobium-devonianum-by-using-hplc-fingerprints-hplc-esi-ms-and-hptlc-analyses
#15
Zi Ye, Jia-Rong Dai, Cheng-Gang Zhang, Ye Lu, Lei-Lei Wu, Amy G W Gong, Hong Xu, Karl W K Tsim, Zheng-Tao Wang
The stems of Dendrobium officinale Kimura et Migo (Dendrobii Officinalis Caulis) have a high medicinal value as a traditional Chinese medicine (TCM). Because of the limited supply, D. officinale is a high priced TCM, and therefore adulterants are commonly found in the herbal market. The dried stems of a closely related Dendrobium species, Dendrobium devonianum Paxt., are commonly used as the substitute; however, there is no effective method to distinguish the two Dendrobium species. Here, a high performance liquid chromatography (HPLC) method was successfully developed and applied to differentiate D...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28764799/metabolomics-study-of-the-therapeutic-mechanism-of-schisandra-chinensis-lignans-in-diet-induced-hyperlipidemia-mice
#16
Jing-Hui Sun, Xu Liu, Li-Xin Cong, He Li, Cheng-Yi Zhang, Jian-Guang Chen, Chun-Mei Wang
BACKGROUND: Schisandra, a globally distributed plant, has been widely applied for the treatment of diseases such as hyperlipidemia, fatty liver and obesity in China. In the present work, a rapid resolution liquid chromatography coupled with quadruple-time-of-flight mass spectrometry (RRLC-Q-TOF-MS)-based metabolomics was conducted to investigate the intervention effect of Schisandra chinensis lignans (SCL) on hyperlipidemia mice induced by high-fat diet (HFD). METHODS: Hyperlipidemia mice were orally administered with SCL (100 mg/kg) once a day for 4 weeks...
August 1, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28763962/extraction-of-bioactive-compounds-from-sesame-sesamum-indicum-l-defatted-seeds-using-water-and-ethanol-under-sub-critical-conditions
#17
Romina Bodoira, Alexis Velez, Alfonsina E Andreatta, Marcela Martínez, Damián Maestri
Sesame seeds contain a vast array of lignans and phenolic compounds having important biological properties. An optimized method to obtain these seed components was designed by using water and ethanol at high pressure and temperature conditions. The maximum concentrations of lignans, total phenolics, flavonoids and flavonols compounds were achieved at 220°C extraction temperature and 8MPa pressure, using 63.5% ethanol as co-solvent. Under these conditions, the obtained sesame extracts gave the best radical scavenging capacity...
December 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28763961/impact-of-extraction-techniques-on-antioxidant-capacities-and-phytochemical-composition-of-polyphenol-rich-extracts
#18
Cecilia Castro-López, Janeth M Ventura-Sobrevilla, María D González-Hernández, Romeo Rojas, Juan A Ascacio-Valdés, Cristóbal N Aguilar, Guillermo C G Martínez-Ávila
In this work, impact of extraction methods (maceration, decoction, MAE, and UAE) on TPC, antioxidant activity, and the mass fraction of phenolics in several plant extracts (Punica granatum, Juglans regia, Moringa oleifera, and Cassia fistula) was investigated. The results showed that, despite the nature of matrix, the highest values of TPC in all samples were obtained by MAE as follows: PP (18.92±0.11), ML (15.19±0.11), HL (12.69±0.16), and WS (12.80±0.11) mg GAEg(-1) respectively, and exhibited potent antioxidant activity (from 0...
December 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28754364/syntheses-of-cytotoxic-novel-arctigenin-derivatives-bearing-halogen-and-alkyl-groups-on-aromatic-rings
#19
Satoshi Yamauchi, Tuti Wukirsari, Yoshiaki Ochi, Hisashi Nishiwaki, Kosuke Nishi, Takuya Sugahara, Koichi Akiyama, Taro Kishida
The new lignano-9,9'-lactones (α,β-dibenzyl-γ-butyrolactone lignans), which showed the higher cytotoxicity than arctigenin, were synthesized. The well-known cytotoxic arctigenin showed activity against HL-60 cells (EC50=12μM), however, it was inactive against HeLa cells (EC50>100μM). The synthesized (3,4-dichloro, 2'-butoxy)-derivative 55 and (3,4-dichloro, 4'-butyl)-derivative 66 bearing the lignano-9,9'-lactone structures showed the EC50 values of 10μM and 9.4μM against HL-60 cells, respectively...
June 27, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28752030/syringaresinol-4-o-%C3%AE-d-glucoside-alters-lipid-and-glucose-metabolism-in-hepg2-cells-and-c2c12-myotubes
#20
Shuai Wang, Chongming Wu, Xin Li, Yue Zhou, Quanyang Zhang, Fuchao Ma, Jianhe Wei, Xiaopo Zhang, Peng Guo
Syringaresinol-4-O-β-d-glucoside (SSG), a furofuran-type lignan, was found to modulate lipid and glucose metabolism through an activity screen of lipid accumulation and glucose consumption, and was therefore considered as a promising candidate for the prevention and treatment of metabolic disorder, especially in lipid and glucose metabolic homeostasis. In this study, the effects of SSG on lipogenesis and glucose consumption in HepG2 cells and C2C12 myotubes were further investigated. Treatment with SSG significantly inhibited lipid accumulation by oil red O staining and reduced the intracellular contents of total lipid, cholesterol and triglyceride in HepG2 cells...
July 2017: Acta Pharmaceutica Sinica. B
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