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Showing 1 to 20 of 254 for “"Flavonoids"”.
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Crystal Engineering of Flavonoids
… crystal engineering of nutraceuticals such as flavonoids by exploring their hydrogen bonding interactions can generate novel compounds such as pharmaceutical cocrystals. Flavonoids are polyphenolic secondary plant metabolites that are present in varying levels in fruits, vegetables and …
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The cardioprotective mechanisms of dietary flavonoids
… to study the protective mechanisms of dietary flavonoids, but they lack features of fully differentiated cardiomyocytes. Therefore, this present study aimed to investigate the cytoprotective and cytotoxic effects of the dietary flavonoids quercetin, kaempferol, myricetin and two major quercetin …
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The flavonoids of Umbellularia californica (lauraceae)
An analysis of the flavonoids of Umbellularia californica was performed on 23 samples collected from throughout the range of the species in Oregon and California. The goals of the study were to identify the major leaf flavonoids and to establish the presence or absence of flavonoid profile …
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Studies in the Bacterial Degradation of Flavonoids
Made available in DSpace on 2014-12-10T23:24:34Z (GMT). No. of bitstreams: 1 7414615.pdf: 6357333 bytes, checksum: 2509a533fffb53a6aa40addb02fdd03b (MD5) Previous issue date: 1974
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Flavonoids and Related Compounds as Nucleoside Transporter Inhibitors
<p>Mammalian nucleoside transporters can be classified into two main categories, namely, equilibrative nucleoside transporters (ENTs) and concentrative nucleoside transporters (CNTs). ENTs are ubiquitous, and mediate sodium-independent bi-directional facilitated diffusion nucleoside transport …
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Investigation of the antibacterial activity of selected flavonoids.
… now an urgent need for new antibacterial agents. Flavonoids are a class of natural product with a diverse range of pharmacological properties, and previous studies at The Robert Gordon University and University of London have identified several candidates suitable for antibacterial analysis. The …
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The Chemistry of Flavonoids in Model Beverages and Human Milk
<p>Interest in the chemistry and stability of flavonoids in foods has been generated by countless epidemiological, in vitro, and in vivo studies that suggest a variety of potential health promoting effects of diets rich in flavonoids. Flavonoids have been shown to interact with multiple components …
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The antioxidant properties of 4–quinolones compared to structurally related flavonoids
… the lifespan and quality of life of the patient. Flavonoids are naturally occurring compounds, abundant in plants with established antioxidant activity. Hydrogen donating substituents on the natural flavonoids are responsible for elevated antioxidant activity and it was therefore hypothesised that …
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Rooibos tea flavonoids increase mineral content in human osteoblast-like cells
… tea contains no caffeine and is a rich source of flavonoids such as rutin, orientin, hyperoside and luteolin. These flavonoids have similar structures to estradiol, and therefore may act as estrogen mimics to promote favourable outcomes in bone. The overall objective of this research was to …
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Effect of flavonoids and related compounds on soybean lipoxygenase-1 activity
… this study was to determine the effectiveness of flavonoids and related antioxidants in the prevention of lipoxygenase-dependent lipid oxidation.
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Metabolic engineering for the biosynthesis of methylated flavonoids in the microbial factory Streptomyces albidoflavus. Evaluation of the antitumor efficacy of flavonoids in a rat model of colorectal cancer
Durante esta tesis doctoral se ha logrado la biosíntesis heteróloga de varios flavonoides metilados que muestran propiedades interesantes relacionadas con la industria o la salud humana. Específicamente, se ha logrado la biosíntesis de los flavonoides metilados sakuranetina, acetina, genkwanina, …
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Studies of the anti-cancer potential of flavonoids in Human Nasopharyngeal carcinoma cells
… underlying the anti-tumour property of two flavonoids namely luteolin and quercetin on nasopharyngeal carcinoma (NPC) using two NPC cell lines, HK1 and CNE2. We first identified the mechanisms leading to quercetin-mediated cell cycle arrest in NPC cells. Quercetin was able to inhibit E2F-1 …
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Modulatory Effects of Citrus Flavonoids Towards the Metabolism and Mutagenicity of Environmental Carcinogens
… class which naturally occur in citrus. These flavonoids were diosmin, naringin. naringenin, rutin, and quercetin. Our results suggest that naringenin and quercetin were the strongest inhibitors of the metabolic activation of NNK, while diosmin, naringin, naringenin, and rutin each demonstrated …
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Effects of Flavonoids and Ascorbic Acid Derivatives on Non-enzymatic Browning in Peaches
… acid by a more stable form and the use of flavonoids as antibrowning antioxidants in peach systems. These approaches were studied in three objectives. In our first objective, ascorbyl-2-phosphate showed better stability than ascorbic acid at 40°C in peach puree model systems, but not at 50 …
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Comparison of dose-dependent outcomes in induction of cytogenotoxic responses by novel glucosyl flavonoids
The flavonoids quercetin, and its glucosides isoquercetin and rutin, are phytochemicals commonly consumed in plant-derived foods. They are associated with potential health-promoting effects such as anti-inflammation, anti-viral, anti-carcinogenesis, neuro- and cardio-protection, etc. Semi-synthetic …
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Effects of plant flavonoids on the fate of polynuclear aromatic hydrocarbons in rhizosphere soil
… adequately understood. Although various plant flavonoids, important components of root exudates, have been found to activate or inhibit PAH metabolism in mammalian cells, research on the interaction between root flavonoids and the soil microbial activities had been few. The effects of root …
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Einfluss des Flavonoids Quercetin auf die epitheliale Barrierefunktion der humanen Kolonkarzinom-Zelllinie Caco-2
… es, die Effekte des am häufigsten vorkommenden Flavonoids Quercetin auf die Barrierefunktion der Kolonkarzinom-Zelllinie Caco-2 zu untersuchen. Hierbei zeigte sich, dass Quercetin konzentrationsabhängig (50-200 µM) den transepithelialen Widerstand erhöhte. Die Wirkung von 200 µM Quercetin war …
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Investigations into the effects of berry flavonoids on nutrient transport processes in Caco-2 enterocytes
Flavonoids are known to interact with a number of membrane transporters, influencing the rate of intestinal nutrient absorption. The transcriptional effects and consequences of such interactions remained to be fully elucidated. To address this we carried out gene expression microarray analysis on …
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STUDIES ON THE EFFECTS OF SOME FLAVONOIDS ON DNA TRANSCRIPTION AND CLONING OF LIPOAMIDE DEHYDROGENASE GENE
… system was utilised to study the effects of flavonoids on DNA transcriptional processes. The template DNA consists of a gene coding for the chicken lysozyme protein inserted in a vector plasmid. Following conventional molecular biology methodology, large quantities of the template DNA were …
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