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https://www.readbyqxmd.com/read/27922066/de-novo-transcriptome-characterization-of-dracaena-cambodiana-and-analysis-of-genes-involved-in-flavonoid-accumulation-during-formation-of-dragon-s-blood
#1
Jia-Hong Zhu, Tian-Jun Cao, Hao-Fu Dai, Hui-Liang Li, Dong Guo, Wen-Li Mei, Shi-Qing Peng
Dragon's blood is a red resin mainly extracted from Dracaena plants, and has been widely used as a traditional medicine in East and Southeast Asia. The major components of dragon's blood are flavonoids. Owing to a lack of Dracaena plants genomic information, the flavonoids biosynthesis and regulation in Dracaena plants remain unknown. In this study, three cDNA libraries were constructed from the stems of D. cambodiana after injecting the inducer. Approximately 266.57 million raw sequencing reads were de novo assembled into 198,204 unigenes, of which 34,873 unique sequences were annotated in public protein databases...
December 6, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27921399/antioxidant-and-antidiabetic-properties-of-tartary-buckwheat-rice-flavonoids-after-in-vitro-digestion
#2
Tao Bao, Ye Wang, Yu-Ting Li, Vemana Gowd, Xin-He Niu, Hai-Ying Yang, Li-Shui Chen, Wei Chen, Chong-de Sun
Oxidative stress and diabetes have a tendency to alter protein, lipid, and DNA moieties. One of the strategic methods used to reduce diabetes-associated oxidative stress is to inhibit the carbohydrate-digesting enzymes, thereby decreasing gastrointestinal glucose production. Plant-derived natural antioxidant molecules are considered a therapeutic tool in the treatment of oxidative stress and diabetes. The objective of this study was to identify tartary buckwheat rice flavonoids and evaluate the effect of in vitro digestion on their antioxidant and antidiabetic properties...
2016: Journal of Zhejiang University. Science. B
https://www.readbyqxmd.com/read/27921314/flavonoids-biosynthesis-in-plants-and-its-further-analysis-by-capillary-electrophoresis
#3
REVIEW
Baljinder Singh, Ashwini Kumar, Ashok Kumar Malik
Flavonoids represent an important bioactive component in plants. Accumulation of flavonoids often occurs in plants subjected to abiotic stresses including the adaptation of plants to the environment and in overcoming their stress conditions. This fact makes their analysis and determination an attractive field in food science since they can give interesting information on the quality and safety of foods. In this review we discuss reports on plants flavonoids biosynthesis against abiotic stresses and advances in analytical capillary electrophoresis used for their identification and quantification in plants...
December 6, 2016: Electrophoresis
https://www.readbyqxmd.com/read/27920825/evaluation-of-cardioprotective-effect-of-aqueous-extract-of-allium-cepa-linn-bulb-on-isoprenaline-induced-myocardial-injury-in-wistar-albino-rats
#4
Geeta B Kharadi, Kaksha J Patel, Bhargav M Purohit, Seema N Baxi, C B Tripathi
To investigate the cardioprotective potential of the aqueous extract of Allium cepa Linn. bulb in isoprenaline-induced myocardial injury in Wistar albino rats. In vitro total phenolic, total flavonoid content and 2, 2'-diphenyl-1-picrylhydrazyl hydrate radical scavenging activity was measured. Isoprenaline-induced myocardial injury model was used to evaluate in vivo effect of aqueous extract of A. cepa in Wistar albino rats. Seventy two rats were randomly divided in 6 groups. Rats were treated with A. cepa 400 mg/kg and 800 mg/kg doses for 30 days and myocardial injury was produced by subcutaneous injection of isoprenaline (ISO) 85 mg/kg on day 28 and 29...
October 2016: Research in Pharmaceutical Sciences
https://www.readbyqxmd.com/read/27920823/antioxidant-effects-of-hydroalcoholic-and-polyphenolic-extracts-of-peucedanum-pastinacifolium-boiss-hausskn
#5
Ahmad Movahedian, Behzad Zolfaghari, Mehrzad Mirshekari
Antioxidant activity of Peucedanum pastinacifolium Boiss. & Hausskn aerial part hydroalcoholic extract (HAE) and polyphenolic extract (PPE) as well as their total phenolic and flavonoid contents were studied. Phenolic and flavonoid contents were respectively estimated as gallic acid and quercetin equivalents. The in vitro antioxidant activity of two extracts of P. pastinacifolium were evaluated by radical scavenging of 1,1-diphenyl-2-picryl hydrazyl radical (DPPH), chelating activity on ferrous ions, or ferric reducing antioxidant power (FRAP) assay...
October 2016: Research in Pharmaceutical Sciences
https://www.readbyqxmd.com/read/27920817/pharmacological-characterization-of-liquiritigenin-a-chiral-flavonoid-in-licorice
#6
Samaa Alrushaid, Neal M Davies, Stephanie E Martinez, Casey L Sayre
Liquiritigenin is a chiral flavonoid present in plant based food, nutraceuticals, and traditional medicines. It is also an important ingredient present in licorice. The purpose of this study is to explore the pharmacological activity of racemic liquiritigenin utilizing several in vitro assays with relevant roles in colon cancer and diabetes. Where possible, the pure enantiomers were tested to identify the stereospecific contribution to the activity. In vitro antioxidant, anticancer, anti-inflammatory activities (cyclooxygenase inhibition), antidiabetic activities (alpha-amylase and alpha-glucosidase inhibition) as well as cytochrome P450 (CYP450) inhibitory activities were assessed...
October 2016: Research in Pharmaceutical Sciences
https://www.readbyqxmd.com/read/27919958/dietary-flavonoids-luteolin-and-quercetin-suppressed-cancer-stem-cell-properties-and-metastatic-potential-of-isolated-prostate-cancer-cells
#7
Pei-Hsun Tsai, Chia-Hsiung Cheng, Chun-Yu Lin, Ying-Tang Huang, Lung-Ta Lee, Chithan C Kandaswami, Yo-Chuen Lin, Kevin Po-Hao Lee, Chin-Chun Hung, Jiuan-Jiuan Hwang, Ferng-Chun Ke, Geen-Dong Chang, Ming-Ting Lee
A highly invasive Du145-III subline was isolated by three successive passages of the parental Du145 prostate tumor cell line (Du145-P) through a Boyden chamber with matrigel-coated membrane support. Du145-III cells showed great invasion potential based on their increased ability to spread/migrate and enhanced expression/secretion of the matrix metalloproteinase 9 (MMP9). Du145-III cells exerted vasculogenic mimicry (VM) properties, reminiscent of endothelial cell characteristics and expressed elevated levels of cancer stem cell (CSC) markers, including Nanog, Sox2, CD44 and ABCG2 and ability to self-renew...
December 2016: Anticancer Research
https://www.readbyqxmd.com/read/27919736/effect-of-morin-5-sulfonic-acid-sodium-salt-on-the-expression-of-apoptosis-related-proteins-caspase-3-bax-and-bcl-2-due-to-the-mercury-induced-oxidative-stress-in-albino-rats
#8
Rantham Subramaniam Venkatesan, Abdul Majeeth Mohamed Sadiq
Many environmental contaminants have been reported to disturb the pro-oxidant or antioxidant balance of the cells by inducing oxidative stress. Oxidative stress mediated by the HgCl2 induces DNA, protein and lipid oxidation resulted in necrosis or apoptosis, or both. Currently flavonoids are being emerging topic and reported to have antiviral, anti-inflammatory, anti- tumor and antioxidant activities. Morin is one of the flavonoid protects the cells from oxygen free radical damage and scavenges the free radicals and metals and also heals the injured cells commercially...
December 2, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27919735/quercetin-attenuates-high-fructose-feeding-induced-atherosclerosis-by-suppressing-inflammation-and-apoptosis-via-ros-regulated-pi3k-akt-signaling-pathway
#9
Xue-Li Lu, Cui-Hua Zhao, Xin-Liang Yao, Han Zhang
Quercetin is a dietary flavonoid compound extracted from various plants, such as apple and onions. Previous studies have revealed its anti-inflammatory, anti-cancer, antioxidant and anti-apoptotic activities. This study investigated the ability of quercetin to inhibit high fructose feeding- or LPS-induced atherosclerosis through regulating oxidative stress, apoptosis and inflammation response in vivo and in vitro experiments. 50 and 100mg/kg quercetin were used in our study, showing significant inhibitory role in high fructose-induced atherosclerosis via reducing reactive oxygen species (ROS) levels, Caspase-3 activation, inflammatory cytokines releasing, the number of terminal deoxynucleotidyl transferase-mediated dUTP nick end-labeling (TUNEL)-positive cells and collagen contents as well as modulating apoptosis- and inflammation-related proteins expression...
December 2, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27919453/dietary-tartary-buckwheat-intake-attenuates-insulin-resistance-and-improves-lipid-profiles-in-patients-with-type-2-diabetes-a-randomized-controlled-trial
#10
Ju Qiu, Yanping Liu, Yanfen Yue, Yuchang Qin, Zaigui Li
Tartary buckwheat (TB) is rich in protein, dietary fiber, and flavonoids and has been reported to affect type 2 diabetes mellitus (T2DM) in animal experiments, but limited information on the benefit of TB as a whole food in T2DM patients is available. Thus, we tested the hypothesis that a daily replacement of a portion of the staple food with TB will improve risk factors of T2DM, including fasting glucose, insulin resistance, and lipid profile. In a parallel, randomized, open-label, controlled trial, 165 T2DM patients were randomly assigned to a control diet group (DC group; systematic diet plans and intensive nutritional education) or a TB intervention group (TB group; daily replacement of a portion of staple food with TB food)...
November 17, 2016: Nutrition Research
https://www.readbyqxmd.com/read/27919108/biocatalytic-synthesis-of-flavonoid-esters-by-lipases-and-their-biological-benefits
#11
Maria Elisa M B de Araújo, Yollanda E M Franco, Marcia C F Messias, Giovanna B Longato, João A Pamphile, Patricia de O Carvalho
Several studies have described important biological activities of flavonoids such as coronary heart disease prevention, hepatoprotective, anti-inflammatory and anticancer activities, enzyme inhibition activity, and antibacterial, antifungal, and antiviral activities. Flavonoids show promising activity as natural plant-based antioxidants due to their antioxidant and free radical scavenging properties. However, their primary applications as antioxidants in the pharmaceutical, cosmetic, and food industries are limited because of their moderately hydrophilic nature...
December 5, 2016: Planta Medica
https://www.readbyqxmd.com/read/27918469/dietary-compound-chrysin-inhibits-retinal-neovascularization-with-abnormal-capillaries-in-db-db-mice
#12
Min-Kyung Kang, Sin-Hye Park, Yun-Ho Kim, Eun-Jung Lee, Lucia Dwi Antika, Dong Yeon Kim, Yean-Jung Choi, Young-Hee Kang
Diabetic retinopathy (DR) develops in a significant proportion of patients with chronic diabetes, characterized by retinal macular edema and abnormal retinal vessel outgrowth leading to vision loss. Chrysin, a naturally-occurring flavonoid found in herb and honeycomb, has anti-inflammatory, antioxidant, and anti-cancer properties. This study sought to determine the protective effects of chrysin on retinal neovascularization with abnormal vessels and blood-retinal barrier (BRB) breakdown in 33 mM glucose-exposed human retinal endothelial cells and in db/db mouse eyes...
December 3, 2016: Nutrients
https://www.readbyqxmd.com/read/27918057/functional-bioactive-biochemical-and-physicochemical-properties-of-the-dolichos-lablab-bean
#13
Hosam M Habib, Serah W Theuri, Ehab E Kheadr, Fedah E Mohamed
The underutilized Kenyan variety of Dolichos lablab bean seeds serves as a good source of nutrients. This study was undertaken for the first time to address the limited knowledge regarding the bioactive, biochemical, physicochemical, and functional properties of Dolichos lablab beans. Proximate analysis, mineral, total and free amino acid profiles, total protein, total dietary and profile of fiber, carotenoids and fat soluble vitamins, total phenolics, and total flavonoids were evaluated. The results clearly show that Dolichos lablab beans contain many health-promoting components, such as fiber, proteins, minerals, and numerous phytochemicals endowed with useful biological activities, that allow it to contribute in a relevant way to the daily intake of these nutrients...
December 5, 2016: Food & Function
https://www.readbyqxmd.com/read/27917660/phytochemical-investigations-on-artemisia-alba-turra-growing-in-the-north-east-of-italy
#14
Gregorio Peron, Valeria Baldan, Stefania Sut, Marta Faggian, Lorenzo Roccabruna, Daniele Zanini, Paolo Manzini, Filippo Maggi, Stefano Dall'Acqua
Artemisia alba Turra (Asteraceae) is an Euro-Mediterranean plant used in Veneto (North-East of Italy) as traditional medicine for the treatment of various diseases. A. alba is a taxonomically problematic species, characterised by common polymorphism leading to a quite high variability in secondary metabolites content. Nonetheless, the phytochemical knowledge on its phytoconstituents, especially non-volatile components, is limited. In the present paper, the phytochemical composition of a tincture obtained from the aerial parts of A...
December 5, 2016: Natural Product Research
https://www.readbyqxmd.com/read/27917182/expression-of-flavone-synthase-ii-and-flavonoid-3-hydroxylase-is-associated-with-color-variation-in-tan-colored-injured-leaves-of-sorghum
#15
Hiroshi Mizuno, Takayuki Yazawa, Shigemitsu Kasuga, Yuji Sawada, Hiroyuki Kanamori, Yuko Ogo, Masami Yokota Hirai, Takashi Matsumoto, Hiroyuki Kawahigashi
Sorghum (Sorghum bicolor L. Moench) exhibits various color changes in injured leaves in response to cutting stress. Here, we aimed to identify key genes for the light brown and dark brown color variations in tan-colored injured leaves of sorghum. For this purpose, sorghum M36001 (light brown injured leaves), Nakei-MS3B (purple), and a progeny, #7 (dark brown), from Nakei-MS3B × M36001, were used. Accumulated pigments were detected by using high-performance liquid chromatography: M36001 accumulated only apigenin in its light brown leaves; #7 accumulated both luteolin and a small amount of apigenin in its dark brown leaves, and Nakei-MS3B accumulated 3-deoxyanthocyanidins (apigeninidin and luteolinidin) in its purple leaves...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27917168/the-absence-of-the-n-acyl-homoserine-lactone-autoinducer-synthase-genes-trai-and-ngri-increases-the-copy-number-of-the-symbiotic-plasmid-in-sinorhizobium-fredii-ngr234
#16
Jessica Grote, Dagmar Krysciak, Katrin Petersen, Simon Güllert, Christel Schmeisser, Konrad U Förstner, Hari B Krishnan, Harald Schwalbe, Nina Kubatova, Wolfgang R Streit
Plant-released flavonoids induce the transcription of symbiotic genes in rhizobia and one of the first bacterial responses is the synthesis of so called Nod factors. They are responsible for the initial root hair curling during onset of root nodule development. This signal exchange is believed to be essential for initiating the plant symbiosis with rhizobia affiliated with the Alphaproteobacteria. Here, we provide evidence that in the broad host range strain Sinorhizobium fredii NGR234 the complete lack of quorum sensing molecules results in an elevated copy number of its symbiotic plasmid (pNGR234a)...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27916850/multi-layer-identification-of-highly-potent-abca1-up-regulators-targeting-lxr%C3%AE-using-multiple-qsar-modeling-structural-similarity-analysis-and-molecular-docking
#17
Meimei Chen, Fafu Yang, Jie Kang, Xuemei Yang, Xinmei Lai, Yuxing Gao
In this study, in silico approaches, including multiple QSAR modeling, structural similarity analysis, and molecular docking, were applied to develop QSAR classification models as a fast screening tool for identifying highly-potent ABCA1 up-regulators targeting LXRβ based on a series of new flavonoids. Initially, four modeling approaches, including linear discriminant analysis, support vector machine, radial basis function neural network, and classification and regression trees, were applied to construct different QSAR classification models...
November 29, 2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/27916704/design-and-development-of-dry-powder-sulfobutylether-%C3%AE-cyclodextrin-complex-for-pulmonary-delivery-of-fisetin
#18
Noratiqah Mohtar, Kevin M G Taylor, Khalid Sheikh, Satyanarayana Somavarapu
This study has investigated complexation of fisetin, a natural flavonoid, with three types of cyclodextrins to improve its solubility. Sulfobutylether-β-cyclodextrin (SBE-β-CD) showed the highest complexation efficiency while maintaining the in vitro antioxidant activity of fisetin. Addition of 20%v/v ethanol in water improved the amount of solubilized fisetin in the complex 5.9-fold compared to the system containing water alone. Spray drying of fisetin-SBE-β-CD complex solution in the presence of ethanol produced a dry powder with improved aerosolization properties when delivered from a dry powder inhaler, indicated by a 2-fold increase in the fine particle fraction (FPF) compared to the powder produced from the complex solution containing water alone...
December 1, 2016: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/27916587/genetic-toxicity-of-epimedium-koreanum-nakai
#19
Youn-Hwan Hwang, Hey Jin Yang, Nam-Hui Yim, Jin Yeul Ma
ETHNOPHARMACOLOGICAL RELEVANCE: In Eastern Asia, E. koreanum Nakai (EKN) has traditionally been used as an aphrodisiac herbal medicine. However, there was no available information for its genotoxicity. This study was conducted to evaluate the genotoxic potentials of EKN. MATERIALS AND METHODS: The phytochemicals of EKN were identified using liquid chromatography/tandem mass spectrometry (LC/MS/MS). Three standard battery of genotoxicity assay for bacterial reverse mutation, mammalian chromosomal aberration and in vivo micronuclei formation was employed...
December 1, 2016: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/27916586/selaginella-uncinata-flavonoids-ameliorated-ovalbumin-induced-airway-inflammation-in-a-rat-model-of-asthma
#20
Bing Yu, Wei Cai, Huan-Huan Zhang, Yu-Sen Zhong, Jie Fang, Wen-You Zhang, Li Mo, Lu-Chen Wang, Chen-Huan Yu
ETHNOPHARMACOLOGICAL RELEVANCE: Selaginella uncinata (Desv.) Spring, known as "Cuiyuncao" is a perennial herb widely distributed in the Southeast Asian countries. In the folk medicine, the local minority commonly use it to treat cough and asthma for centuries. AIM OF THE STUDY: This study was carried out to investigate the protective mechanisms of total flavonoids from S. uncinata (SUF) on airway hyperresponsiveness, cytokine release and bitter taste receptors (T2Rs) signaling with emphasis on inflammatory responses in a rat model of ovalbumin (OVA)-induced asthma...
December 1, 2016: Journal of Ethnopharmacology
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