Literatura académica sobre el tema "Flavonoids Isoflavones Metabolites"
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Artículos de revistas sobre el tema "Flavonoids Isoflavones Metabolites"
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Shen, Ting, Fengting Hu, Qianrui Liu, Haiyan Wang y Houhua Li. "Analysis of Flavonoid Metabolites in Chaenomeles Petals Using UPLC-ESI-MS/MS". Molecules 25, n.º 17 (2 de septiembre de 2020): 3994. http://dx.doi.org/10.3390/molecules25173994.
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Chaenomeles species are used for both ornamental decoration and medicinal purposes. In order to have a better understanding of the flavonoid profile of Chaenomeles, the petals of four Chaenomeles species, including Chaenomeles japonica (RB), Chaenomeles speciose (ZP), Chaenomeles sinensis (GP), and Chaenomeles cathayensis (MY), were selected as experimental material. The total flavonoid content of GP was found to be the highest, followed by MY, ZP, and RB. In total, 179 flavonoid metabolites (including 49 flavonols, 46 flavonoids, 19 flavone C-glycosides, 17 procyanidins, 15 anthocyanins, 10 flavanols, 10 dihydroflavonoids, 6 isoflavones, 5 dihydroflavonols, and 2 chalcones) were identified by Ultra-Performance Liquid Chromatography-Electrospray Ionization-Tandem Mass Spectrometry. Screening of differential flavonoid metabolites showed that GP had higher levels of metabolites when compared with the other three Chaenomeles species. Annotation and enrichment analysis of flavonoid metabolites revealed that cyanidin 3,5-diglucoside and pelargonidin-3,5-diglucoside anthocyanins are likely responsible for the color differences of the four Chaenomeles petals. Additionally, a large number of flavonoids, flavonols, and isoflavones were enriched in the petals of GP. This study provides new insights into the development and utilization of Chaenomeles petals and provides a basis for future investigations into their utilization.
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Wang, Jun-Fei, Si-Si Liu, Zhi-Qiang Song, Tang-Chang Xu, Chuan-Sheng Liu, Ya-Ge Hou, Rong Huang y Shao-Hua Wu. "Naturally Occurring Flavonoids and Isoflavonoids and Their Microbial Transformation: A Review". Molecules 25, n.º 21 (3 de noviembre de 2020): 5112. http://dx.doi.org/10.3390/molecules25215112.
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Flavonoids and isoflavonoids are polyphenolic secondary metabolites usually produced by plants adapting to changing ecological environments over a long period of time. Therefore, their biosynthesis pathways are considered as the most distinctive natural product pathway in plants. Seemingly, the flavonoids and isoflavones from fungi and actinomycetes have been relatively overlooked. In this review, we summarized and classified the isoflavones and flavonoids derived from fungi and actinomycetes and described their biological activities. Increasing attention has been paid to bioactive substances derived from microorganism whole-cell biotransformation. Additionally, we described the utilization of isoflavones and flavonoids as substrates by fungi and actinomycetes for biotransformation through hydroxylation, methylation, halogenation, glycosylation, dehydrogenation, cyclisation, and hydrogenation reactions to obtain rare and highly active biofunctional derivatives. Overall, among all microorganisms, actinomycetes are the main producers of flavonoids. In our review, we also summarized the functional genes involved in flavonoid biosynthesis.
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Chen, Qianru, Xianxian Wang, Xiaolong Yuan, John Shi, Chengsheng Zhang, Ning Yan y Changliang Jing. "Comparison of Phenolic and Flavonoid Compound Profiles and Antioxidant and α-Glucosidase Inhibition Properties of Cultivated Soybean (Glycine max) and Wild Soybean (Glycine soja)". Plants 10, n.º 4 (20 de abril de 2021): 813. http://dx.doi.org/10.3390/plants10040813.
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Wild soybean (Glycine soja Sieb.et Zucc; WS) has been used as a traditional food in China for many years and contains significantly higher levels of isoflavones than cultivated soybean (Glycine max; CS), but the secondary metabolites, including flavonoids and the phenolic composition differences between them, remain unclear. The results showed that WS possessed significantly higher total phenolic and flavonoid content and exhibited better antioxidant and α-glucosidase inhibition activities as well as excellent protective effects against H2O2-induced oxidative injury in a human endothelial cell line. Through metabolomic analysis, 642 metabolites were identified, and 238 showed differential expression, with 151 upregulated and 87 downregulated. A total of 79 flavonoid compounds were identified, 42 of which were upregulated in WS. 2′-Hydroxygenistein, garbanzol, protocatechuic aldehyde, ligustilide, and resveratrol were the most discriminated compounds in WS. The metabolic pathway analysis of differential metabolites related to the biosynthesis of flavonoids and phenolic acids were the biosynthesis of phenylpropanoids, flavonoids, isoflavonoids, flavones, and flavonols. This study substantially elucidated differences in the content of flavonoids and biological activities between WS and CS, which is useful information for the effective utilization of these two black soybean species in food processing.
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Wang, Tao, Fengjiao Zhang, Weibing Zhuang, Xiaochun Shu y Zhong Wang. "Metabolic Variations of Flavonoids in Leaves of T. media and T. mairei Obtained by UPLC-ESI-MS/MS". Molecules 24, n.º 18 (12 de septiembre de 2019): 3323. http://dx.doi.org/10.3390/molecules24183323.
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The needles of Taxus species contain a large number of bioactive compounds, such as flavonoids. In the present study, the total flavonoid content in leaves of Taxus media and Taxus mairei was 19.953 and 14.464 mg/g, respectively. A total of 197 flavonoid metabolites (70 flavones, 42 flavonols, 26 flavone C-glycosides, 20 flavanones, 15 anthocyanins, 13 isoflavones, 6 flavonolignans, and 5 proanthocyanidins) were identified for the first time by a widely targeted Ultra Performance Liquid Chromatography-Electrospray Ionization-Tandem Mass Spectrometry (UPLC-ESI-MS/MS) method within the two Taxus species, containing 160 common metabolites, with 37 unique metabolites merely determined in T. mairei or T. media. Moreover, 42 differential flavonoid metabolites were screened in the two Taxus species, which showed specific metabolic patterns in isoflavonoid biosynthesis, anthocyanin biosynthesis, and flavone and flavonol biosynthesis pathways. Compared to T. mairei, a more activated phenylpropanoid pathway was found in T. media, which could be responsible for the higher content of total flavonoids in T. media. Our results provide new insights into the diversity of flavonoid metabolites between T. mairei and T. media, and provide a theoretical basis for the sufficient utilization of Taxus species and the development of novel drugs.
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Zhang, Aiai, Jing Zheng, Xuemiao Chen, Xueyin Shi, Huaisong Wang y Qiushi Fu. "Comprehensive Analysis of Transcriptome and Metabolome Reveals the Flavonoid Metabolic Pathway Is Associated with Fruit Peel Coloration of Melon". Molecules 26, n.º 9 (10 de mayo de 2021): 2830. http://dx.doi.org/10.3390/molecules26092830.
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The peel color is an important external quality of melon fruit. To explore the mechanisms of melon peel color formation, we performed an integrated analysis of transcriptome and metabolome with three different fruit peel samples (grey-green ‘W’, dark-green ‘B’, and yellow ‘H’). A total of 40 differentially expressed flavonoids were identified. Integrated transcriptomic and metabolomic analyses revealed that flavonoid biosynthesis was associated with the fruit peel coloration of melon. Twelve differentially expressed genes regulated flavonoids synthesis. Among them, nine (two 4CL, F3H, three F3′H, IFS, FNS, and FLS) up-regulated genes were involved in the accumulation of flavones, flavanones, flavonols, and isoflavones, and three (2 ANS and UFGT) down-regulated genes were involved in the accumulation of anthocyanins. This study laid a foundation to understand the molecular mechanisms of melon peel coloration by exploring valuable genes and metabolites.
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Selvakumar, Priyanga, Aja Badgeley, Paige Murphy, Hina Anwar, Urvashi Sharma, Katharine Lawrence y Ashakumary Lakshmikuttyamma. "Flavonoids and Other Polyphenols Act as Epigenetic Modifiers in Breast Cancer". Nutrients 12, n.º 3 (13 de marzo de 2020): 761. http://dx.doi.org/10.3390/nu12030761.
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Breast cancer is a common cancer that occurs due to different epigenetic alterations and genetic mutations. Various epidemiological studies have demonstrated an inverse correlation between breast cancer incidence and flavonoid intake. The anti-cancer action of flavonoids, a class of polyphenolic compounds that are present in plants, as secondary metabolites has been a major topic of research for many years. Our review analysis demonstrates that flavonoids exhibit anti-cancer activity against breast cancer occurring in different ethnic populations. Breast cancer subtype and menopausal status are the key factors in inducing the flavonoid’s anti-cancer action in breast cancer. The dose is another key factor, with research showing that approximately 10 mg/day of isoflavones is required to inhibit breast cancer occurrence. In addition, flavonoids also influence the epigenetic machinery in breast cancer, with research demonstrating that epigallocatechin, genistein, and resveratrol all inhibited DNA methyltransferase and altered chromatin modification in breast cancer. These flavonoids can induce the expression of different tumor suppressor genes that may contribute to decreasing breast cancer progression and metastasis. Additional studies are required to confirm the contribution of epigenetic modifications by flavonoids to breast cancer prevention.
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Sak, K. "CURRENT EPIDEMIOLOGICAL KNOWLEDGE ABOUT THE ROLE OF FLAVONOIDS IN PROSTATE CARCINOGENESIS". Experimental Oncology 39, n.º 2 (22 de junio de 2017): 98–105. http://dx.doi.org/10.31768/2312-8852.2017.39(2):98-105.
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Numerous experimental studies have demonstrated anticancer action of polyphenolic plant metabolites. However, data about associations between dietary intake of plant-derived flavonoids and prostate cancer risk are still sparse and inconsistent. This minireview compiles the epidemiological findings published to date on the role of flavonoids in prostate tumorigenesis, discusses the reasons of inconsistencies and elicits the promising results for chemoprevention of this malignancy. Long-term consumption of high doses of soy isoflavones can be the reason of markedly lower clinically detectable prostate cancer incidence among Asian men compared to their counterparts in the Western world. The ability to metabolize daidzein to equol, the most biologically active isoflavone, by the certain intestinal bacteria also seems to contribute to this important health benefit. The increasing incidence rate of prostate cancer related to adoption of westernized lifestyle and dietary habits makes the issue of chemoprevention ever more important and directs the eyes to specific food components in the Eastern diet. If further large-scale epidemiological studies will confirm the protective effects of isoflavones against prostate cancer, this could provide an important way for prostate cancer prevention, as diet is a potentially modifiable factor in our behavioral pattern.
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Awouafack, Maurice Ducret, Pierre Tane, Michael Spiteller y Jacobus Nicolaas Eloff. "Eriosema (Fabaceae) Species Represent a Rich Source of Flavonoids with Interesting Pharmacological Activities". Natural Product Communications 10, n.º 7 (julio de 2015): 1934578X1501000. http://dx.doi.org/10.1177/1934578x1501000749.
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Many flavonoids have so far been isolated as main secondary metabolites in plant species of the genus Eriosema (Fabaceae), which contains approximately 160 species. A total of 52 flavonoids including isoflavones, dihydroflavonols, flavonols, flavanones, dihydrochalcones, isoflavanone and their pyrano or glucoside derivatives were isolated and characterized from the five species of this genus investigated to date. Total synthesis and semi-synthesis (acetylation, methylation, hydrogenation, and cyclization) of some isolated flavonoids were reported. Due to several significant pharmacological properties (antimicrobial, cytotoxicity, anti-mycobacterial, antioxidant, antiviral, erectile-dysfunction, vasodilatory and hypoglycemic) of the isolated flavonoids and derivatives, more scientists should be interested in investigating Eriosema species. The present review is the first to document all flavonoids that have been reported from the genus Eriosema to date together with their synthetic and semi-synthetic derivatives, and their pharmacological properties. Dihydrochalcones, which are precursors of other classes of flavonoids, are very rare in natural sources and their isolation from Eriosema species may explain the large number of flavonoids found in this genus. It appears that isoflavone could be a marker for species in this genus. The 83 flavonoids (1–83) documented include 52 isolates, 31 semi-synthetic and 3 totally synthetic derivatives. Data were obtained from Google scholar, Pubmed, Scifinder, Sciencedirect, and Scopus. With 52 different flavonoids isolated from only 5 of the approximately 160 species it shows the remarkable chemical diversity of this genus. This compilation of the biological activities and chemical composition may renew the interest of pharmacologists and phytochemists in this genus.
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Sasaki, Kanako, Yusuke Tsurumaru, Hirobumi Yamamoto y Kazufumi Yazaki. "Molecular Characterization of a Membrane-bound Prenyltransferase Specific for Isoflavone from Sophora flavescens". Journal of Biological Chemistry 286, n.º 27 (16 de mayo de 2011): 24125–34. http://dx.doi.org/10.1074/jbc.m111.244426.
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Prenylated isoflavones are secondary metabolites that are mainly distributed in legume plants. They often possess divergent biological activities such as anti-bacterial, anti-fungal, and anti-oxidant activities and thus attract much attention in food, medicinal, and agricultural research fields. Prenyltransferase is the key enzyme in the biosynthesis of prenylated flavonoids by catalyzing a rate-limiting step, i.e. the coupling process of two major metabolic pathways, the isoprenoid pathway and shikimate/polyketide pathway. However, so far only two genes have been isolated as prenyltransferases involved in the biosynthesis of prenylated flavonoids, namely naringenin 8-dimethylallyltransferase from Sophora flavescens (SfN8DT-1) specific for some limited flavanones and glycinol 4-dimethylallyltransferase from Glycine max (G4DT), specific for pterocarpan substrate. We have in this study isolated two novel genes coding for membrane-bound flavonoid prenyltransferases from S. flavescens, an isoflavone-specific prenyltransferase (SfG6DT) responsible for the prenylation of the genistein at the 6-position and a chalcone-specific prenyltransferase designated as isoliquiritigenin dimethylallyltransferase (SfiLDT). These prenyltransferases were enzymatically characterized using a yeast expression system. Analysis on the substrate specificity of chimeric enzymes between SfN8DT-1 and SfG6DT suggested that the determinant region for the specificity of the flavonoids was the domain neighboring the fifth transmembrane α-helix of the prenyltransferases.
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Faixová, D., G. Hrčková, T. Mačák Kubašková y D. Mudroňová. "Antiparasitic effects of selected isoflavones on flatworms". Helminthologia 58, n.º 1 (10 de febrero de 2021): 1–16. http://dx.doi.org/10.2478/helm-2021-0004.
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Summary Medicinal plants have been successfully used in the ethno medicine for a wide range of diseases since ancient times. The research on natural products has allowed the discovery of biologically relevant compounds inspired by plant secondary metabolites, what contributed to the development of many chemotherapeutic drugs. Flavonoids represent a group of therapeutically very effective plant secondary metabolites and selected molecules were shown to exert also antiparasitic activity. This work summarizes the recent knowledge generated within past three decades about potential parasitocidal activities of several flavonoids with different chemical structures, particularly on medically important flatworms such as Schistosoma spp., Fasciola spp., Echinococcus spp., Raillietina spp., and model cestode Mesocestoides vogae. Here we focus on curcumin, genistein, quercetin and silymarin complex of flavonolignans. All of them possess a whole spectrum of biological activities on eukaryotic cells which have multi-therapeutic effects in various diseases. In vitro they can induce profound alterations in the tegumental architecture and its functions as well as their activity can significantly modulate or damage worm´s metabolism directly by interaction with enzymes or signaling molecules in dose-dependent manner. Moreover, they seem to differentially regulate the RNA activity in numbers of worm´s genes. This review suggests that examined flavonoids and their derivates are promising molecules for antiparasitic drug research. Due to lack of toxicity, isoflavons could be used directly for therapy, or as adjuvant therapy for diseases caused by medically important cestodes and trematodes.
Tesis sobre el tema "Flavonoids Isoflavones Metabolites"
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Walsh, Kelly Robert. "Digestion and intestinal metabolism of soy isoflavonoids and isoflavonoid metabolites". Columbus, Ohio : Ohio State University, 2006. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1154699096.
Texto completoActas de conferencias sobre el tema "Flavonoids Isoflavones Metabolites"
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Sudirman, Muhamad Seto. "Effectiveness of Ficus Elastica Roxb. Ex Hornem Leaf Extract in Reducing Total Cholesterol Level in High Fat Induced Diet Wistar Male Rats". En The 7th International Conference on Public Health 2020. Masters Program in Public Health, Universitas Sebelas Maret, 2020. http://dx.doi.org/10.26911/the7thicph.05.10.
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ABSTRACT Background: Kebo rubber leaves (ficus elastica roxb) contain flavonoids, polyphenols, and tannins. Flavonoids in the leaves of ficus elastica roxb such as catechins, isoflavones are polyphenolic antioxidants from plant metabolites. The leaves of ficus elastica roxb are trusted and proven empirically in the community to reduce cholesterol levels in the blood. Mice choose animals because they are considered to have physiological similarities with humans. This study aimed to determine the effect of ethanol extract of ficus elastica roxb leaves on reducing total cholesterol level in male Swiss Webster mice. Subjects and Method: This was a quasi-experimental study conducted at Biology Laboratory of the Faculty of Agriculture, Fisheries and Biology, University of Bangka Belitung from April to June, 2017. A sample of 25 male Swiss Webster mice was selected at random and allocated into groups. The dependent variable was total cholesterol. The independent variable was the extract of ficus elastica rox. The data were tested by One-Way ANOVA. Result: There were statistically significant mean differences among the study groups (p= 0.002), indicating the effect of ethanol extract of Ficus Elastica Roxb leaves on reducing total cholesterol level in male Swiss Webster mice at various doses. Conclusion: There are statistically significant mean differences among the study groups, indicating the effect of ethanol extract of Ficus Elastica Roxb leaves on reducing total cholesterol level in male Swiss Webster mice at various doses. Keyword: Ethanol extract of Ficus Elastica Roxb leaves, total cholesterol, mice Correspondence: Muhamad Seto Sudirman. School of Health Polytechnic, Pangkalpinang. Email: MuhamadSeto@gmail.com DOI: https://doi.org/10.26911/the7thicph.05.10