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https://www.readbyqxmd.com/read/28346392/impact-of-novel-sorghum-bran-diets-on-dss-induced-colitis
#1
Lauren E Ritchie, Stella S Taddeo, Brad R Weeks, Raymond J Carroll, Linda Dykes, Lloyd W Rooney, Nancy D Turner
We have demonstrated that polyphenol-rich sorghum bran diets alter fecal microbiota; however, little is known regarding their effect on colon inflammation. Our aim was to characterize the effect of sorghum bran diets on intestinal homeostasis during dextran sodium sulfate (DSS)-induced colitis. Male Sprague-Dawley rats (N = 20/diet) were provided diets containing 6% fiber from cellulose, or Black (3-deoxyanthocyanins), Sumac (condensed tannins) or Hi Tannin Black (both) sorghum bran. Colitis was induced (N = 10/diet) with three separate 48-h exposures to 3% DSS, and feces were collected...
March 27, 2017: Nutrients
https://www.readbyqxmd.com/read/28345531/polyphenols-in-preventing-endothelial-dysfunction
#2
Sylwia Biegańska-Hensoldt, Danuta Rosołowska-Huszcz
One of the main causes of mortality in developed countries is atherosclerosis. The pathogenesis of atherosclerosis is associated with endothelial dysfunction. Consumption of food rich in natural antioxidants including polyphenols significantly improves endothelial cells functions. Polyphenols have a beneficial effect on the human body and play an important part in protecting the cardiovascular system. Polyphenols present in food have antioxidant, anti-inflammatory, antihypertensive, antithrombotic and antiproliferative properties...
March 27, 2017: Postȩpy Higieny i Medycyny Doświadczalnej
https://www.readbyqxmd.com/read/28345118/effect-of-paullinia-cupana-mart-commercial-extract-during-the-aging-of-middle-age-wistar-rats-differential-effects-on-the-hippocampus-and-striatum
#3
Moara Rodrigues Mingori, Luana Heimfarth, Charles Francisco Ferreira, Henrique Mautone Gomes, Karla Suzana Moresco, Jeferson Delgado, Sabrina Roncato, Fares Zeidán-Chuliá, Daniel Pens Gelain, José Cláudio Fonseca Moreira
During aging, there is a marked decline in the antioxidant capacity of brain tissue, leading to a gradual loss of the antioxidant/oxidant balance, which causes oxidative damage. The effects of Paullinia cupana Mart. extract, which is described as being rich in caffeine and many polyphenol compounds, on the central nervous system have not been extensively investigated. The aim of this study was to therefore investigate the effect of a commercial guarana extract (CGE) on cognitive function, oxidative stress, and brain homeostasis proteins related to cognitive injury and senescence in middle age, male Wistar rats...
March 27, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28344830/exploring-and-validating-physicochemical-properties-of-mangiferin-through-gastroplus-%C3%A2-software
#4
Rajneet Kaur Khurana, Ranjot Kaur, Manninder Kaur, Rajpreet Kaur, Jasleen Kaur, Harpreet Kaur, Bhupinder Singh
AIM: Mangiferin (Mgf), a promising therapeutic polyphenol, exhibits poor oral bioavailability. Hence, apt delivery systems are required to facilitate its gastrointestinal absorption. The requisite details on its physicochemical properties have not yet been well documented in literature. Accordingly, in order to have explicit insight into its physicochemical characteristics, the present work was undertaken using GastroPlus™ software. RESULTS: Aqueous solubility (0...
March 2017: Future Science OA
https://www.readbyqxmd.com/read/28344475/antiproliferative-and-apoptotic-effect-of-morus-nigra-extract-on-human-prostate-cancer-cells
#5
Ibrahim Turan, Selim Demir, Kagan Kilinc, Nesibe Arslan Burnaz, Serap Ozer Yaman, Kubra Akbulut, Ahmet Mentese, Yuksel Aliyazicioglu, Orhan Deger
Background: Morus nigra L. belongs to the family Moraceae and is frequently used in traditional medicine. Numerous studies have investigated the antiproliferative effects of various extracts of different Morus species, but studies involving the in vitro cytotoxic effect of M. nigra extract are very limited. The purpose of this study was to evaluate the phenolic composition and antioxidant activity of dimethyl sulfoxide extract of M. nigra (DEM) and to investigate, for the first time, the probable cytotoxic effect in human prostate adenocarcinoma (PC-3) cells together with the mechanism involved...
February 2017: Saudi Pharmaceutical Journal: SPJ: the Official Publication of the Saudi Pharmaceutical Society
https://www.readbyqxmd.com/read/28344085/protection-of-polyphenols-in-blueberry-juice-by-vacuum-assisted-block-freeze-concentration
#6
Patricio Orellana-Palma, Guillermo Petzold, Lissage Pierre, José Manuel Pensaben
Block freeze concentration allows produces high-quality cryoconcentrates with important protection of valuable components from fresh fruit juices. The aim of this study was to investigate the use of vacuum-assisted block freeze concentration under different experimental conditions to protect polyphenols in the elaboration of concentrated blueberry juice. Fresh blueberry juice was radial or unidirectional frozen at -20 and -80 °C for 12 h and vacuum process was performed at 80 kPa during 120 min. Results showed a significant solute increased in the concentrated fraction in all treatments, and the best treatment was - 20 °C/unidirectional with a value of ≈63 °Brix, equivalent to an increase of 3...
March 23, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28342275/use-of-lc-qqq-ms-for-the-detection-of-emodin-metabolites-in-rat-bile-and-urine
#7
Songyan Wu, Yaqing Zhang, Zunjian Zhang, Rui Song
Emodin is the representative form of rhubarb, which is widely used in traditional Chinese medicine for the treatment of purgative, anti-inflammatory, antioxidative and antiviral, etc. Previous reports demonstrated that emodin glucuronide was the major metabolite in plasma. Due to the extensive conjugation reactions of polyphenols, the aim of this study was to identify the metabolites of emodin in rat bile and urine. Neutral loss and precursor ion scan methods of triple-quadrupole mass spectrometer revealed 13 conjugated metabolites in rat bile and 22 metabolites in rat urine, which including 4 phase I and 18 phase II metabolites...
March 25, 2017: Biomedical Chromatography: BMC
https://www.readbyqxmd.com/read/28341805/correction-the-high-polyphenol-content-of-grapevine-cultivar-tannat-berries-is-conferred-primarily-by-genes-that-are-not-shared-with-the-reference-genome
#8
https://www.readbyqxmd.com/read/28340400/pharmacoinformatics-exploration-of-polyphenol-oxidases-leading-to-novel-inhibitors-by-virtual-screening-and-molecular-dynamic-simulation-study
#9
Mubashir Hassan, Qamar Abbas, Zaman Ashraf, Ahmed A Moustafa, Sung-Yum Seo
Polyphenol oxidases (PPOs)/tyrosinases are metal-dependent enzymes and known as important targets for melanogenesis. Although considerable attempts have been conducted to control the melanin-associated diseases by using various inhibitors. However, the exploration of the best anti-melanin inhibitor without side effect still remains a challenge in drug discovery. In present study, protein structure prediction, ligand-based pharmacophore modeling, virtual screening, molecular docking and dynamic simulation study were used to screen the strong novel inhibitor to cure melanogenesis...
March 15, 2017: Computational Biology and Chemistry
https://www.readbyqxmd.com/read/28339113/preparation-and-oxidation-stability-evaluation-of-tea-polyphenols-loaded-inverse-micro-emulsion
#10
Xiaohong Lan, Jingjing Sun, Ying Yang, Mengjie Chen, Jianhua Liu, Jinhong Wu, Zhengwu Wang
Compared to synthetic antioxidants, tea polyphenols (TPs) has its own advantages in edible oil industry, however, the hydrophilic properties have restricted its applications. In this study, the ternary phase diagram of TPs-loaded micro-emulsion (ME) system was constructed, in which glyceryl monooleate (GMO), Tween80, linoleic acid as the surfactants, ethanol as the co-surfactant and soybean, corn, sunflower oil as the oil phase, have been used for the preparation of ME. The results indicated that a composition of ME (57...
March 24, 2017: Journal of Food Science
https://www.readbyqxmd.com/read/28339032/clc-7-ostm1-contribute-to-the-ability-of-tea-polyphenols-to-maintain-bone-homeostasis-in-c57bl-6-mice-protecting-against-fluorosis
#11
Bing-Yun Li, Yan-Hui Gao, Jun-Rui Pei, Yan-Mei Yang, Wei Zhang, Dian-Jun Sun
Epidemiological investigations indicate that certain ingredients in tea bricks can antagonize the adverse effects of fluoride. Tea polyphenols (TPs), the most bioactive ingredient in tea bricks, have been demonstrated to be potent bone-supporting agents. ClC‑7 is known to be crucial for osteoclast (OC) bone resorption. Thus, in this study, we investigated the potential protective effects of TPs against fluorosis using a mouse model and explored the underlying mechanisms with particular focus on ClC‑7...
March 22, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28338616/a-comparative-study-of-phenols-in-apulian-italian-wines
#12
Andrea Ragusa, Carla Centonze, Maria E Grasso, Maria F Latronico, Pier F Mastrangelo, Federica Sparascio, Francesco P Fanizzi, Michele Maffia
Nutraceutics is a growing research field in which researchers study and attempt to improve the biological properties of metabolites in food. Wine is one of the most consumed products in the world and contains a plethora of molecules biologically relevant to human health. In this article, several polyphenols with potential antioxidant activity were measured in wines from Apulia, in Southeast Italy. Hydroxytyrosol, gallic and syringic acids, luteolin, quercetin, and trans-resveratrol were identified and quantified by HPLC...
March 24, 2017: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28338009/resveratrol-attenuates-icam-1-expression-and-monocyte-adhesiveness-to-tnf-%C3%AE-treated-endothelial-cells-evidence-for-an-anti-inflammatory-cascade-mediated-by-the-mir-221-222-ampk-p38-nf-%C3%AE%C2%BAb-pathway
#13
Chen-Wei Liu, Hsin-Ching Sung, Shu-Rung Lin, Chun-Wei Wu, Chiang-Wen Lee, I-Ta Lee, Yi-Fan Yang, I-Shing Yu, Shu-Wha Lin, Ming-Hsien Chiang, Chan-Jung Liang, Yuh-Lien Chen
Resveratrol, an edible polyphenolic phytoalexin, improves endothelial dysfunction and attenuates inflammation. However, the mechanisms have not been thoroughly elucidated. Therefore, we investigated the molecular basis of the effects of resveratrol on TNF-α-induced ICAM-1 expression in HUVECs. The resveratrol treatment significantly attenuated the TNF-α-induced ICAM-1 expression. The inhibition of p38 phosphorylation mediated the reduction in ICAM-1 expression caused by resveratrol. Resveratrol also decreased TNF-α-induced IκB phosphorylation and the phosphorylation, acetylation, and translocation of NF-κB p65...
March 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28337785/transcriptomic-and-metabolic-analyses-provide-new-insights-into-chilling-injury-in-peach-fruit
#14
Ke Wang, Xue-Ren Yin, Bo Zhang, Don Grierson, Chang-Jie Xu, Kun-Song Chen
Low temperature conditioning (LTC) alleviates peach fruit chilling injury but the underlying molecular basis is poorly understood. Here, changes in transcriptome, ethylene production, flesh softening, internal browning, and membrane lipids were compared in fruit maintained in constant 0 °C and LTC (pre-storage at 8 °C for 5 days before storage at 0 °C). LTC resulted in a higher rate of ethylene production and a more rapid flesh softening as a result of higher expression of ethylene biosynthetic genes and a series of cell wall hydrolases...
March 24, 2017: Plant, Cell & Environment
https://www.readbyqxmd.com/read/28337639/the-impact-of-mangiferin-from-belamcanda-chinensis-on-experimental-colitis-in-rats
#15
Marta Szandruk, Anna Merwid-Ląd, Adam Szeląg
BACKGROUND: Inflammatory bowel disease (IBD) [including Crohn's disease (CD) and ulcerative colitis (UC)] constitutes an important clinical problem. The pathogenesis of IBD remains unclear. It is believed that immune dysfunction, inflammatory mediators and oxidative damage play crucial roles in development of IBD. The condition is clinically associated with symptoms ranging from mild to severe during relapses, depending on the affected segment of the gastrointestinal tract. Bloody diarrhea with mucus, abdominal pain, weight loss and anemia are initial symptoms of both CD and UC...
March 24, 2017: Inflammopharmacology
https://www.readbyqxmd.com/read/28335727/overexpression-of-snapdragon-delila-del-gene-in-tobacco-enhances-anthocyanin-accumulation-and-abiotic-stress-tolerance
#16
Aung Htay Naing, Kyeung Il Park, Trinh Ngoc Ai, Mi Young Chung, Jeung Sul Han, Young-Wha Kang, Ki Byung Lim, Chang Kil Kim
BACKGROUND: Rosea1 (Ros1) and Delila (Del) co-expression controls anthocyanin accumulation in snapdragon flowers, while their overexpression in tomato strongly induces anthocyanin accumulation. However, little data exist on how Del expression alone influences anthocyanin accumulation. RESULTS: In tobacco (Nicotiana tabacum 'Xanthi'), Del expression enhanced leaf and flower anthocyanin production through regulating NtCHS, NtCHI, NtF3H, NtDFR, and NtANS transcript levels...
March 23, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28335726/analysis-of-hepatic-transcript-profile-and-plasma-lipid-profile-in-early-lactating-dairy-cows-fed-grape-seed-and-grape-marc-meal-extract
#17
Denise K Gessner, Anne Winkler, Christian Koch, Georg Dusel, Gerhard Liebisch, Robert Ringseis, Klaus Eder
BACKGROUND: It was recently reported that dairy cows fed a polyphenol-rich grape seed and grape marc meal extract (GSGME) during the transition period had an increased milk yield, but the underlying reasons remained unclear. As polyphenols exert a broad spectrum of metabolic effects, we hypothesized that feeding of GSGME influences metabolic pathways in the liver which could account for the positive effects of GSGME in dairy cows. In order to identify these pathways, we performed genome-wide transcript profiling in the liver and lipid profiling in plasma of dairy cows fed GSGME during the transition period at 1 week postpartum...
March 23, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28335521/gene-transformation-induced-changes-in-chemical-functional-group-features-and-molecular-structure-conformation-in-alfalfa-plants-co-expressing-lc-bhlh-and-c1-myb-transcriptive-flavanoid-regulatory-genes-effects-of-single-gene-and-two-gene-insertion
#18
Ravindra G Heendeniya, Peiqiang Yu
Alfalfa (Medicago sativa L.) genotypes transformed with Lc-bHLH and Lc transcription genes were developed with the intention of stimulating proanthocyanidin synthesis in the aerial parts of the plant. To our knowledge, there are no studies on the effect of single-gene and two-gene transformation on chemical functional groups and molecular structure changes in these plants. The objective of this study was to use advanced molecular spectroscopy with multivariate chemometrics to determine chemical functional group intensity and molecular structure changes in alfalfa plants when co-expressing Lc-bHLH and C1-MYB transcriptive flavanoid regulatory genes in comparison with non-transgenic (NT) and AC Grazeland (ACGL) genotypes...
March 20, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28335517/state-of-the-art-on-functional-virgin-olive-oils-enriched-with-bioactive-compounds-and-their-properties
#19
REVIEW
Patricia Reboredo-Rodríguez, María Figueiredo-González, Carmen González-Barreiro, Jesús Simal-Gándara, María Desamparados Salvador, Beatriz Cancho-Grande, Giuseppe Fregapane
Virgin olive oil, the main fat of the Mediterranean diet, is per se considered as a functional food-as stated by the European Food Safety Authority (EFSA)-due to its content in healthy compounds. The daily intake of endogenous bioactive phenolics from virgin olive oil is variable due to the influence of multiple agronomic and technological factors. Thus, a good strategy to ensure an optimal intake of polyphenols through habitual diet would be to produce enriched virgin olive oil with well-known bioactive polyphenols...
March 20, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28335507/hydroxytyrosol-in-the-prevention-of-the-metabolic-syndrome-and-related-disorders
#20
REVIEW
Julien Peyrol, Catherine Riva, Marie Josèphe Amiot
Virgin olive oil (VOO) constitutes the main source of fat in the Mediterranean diet. VOO is rich in oleic acid, displaying health-promoting properties, but also contains minor bioactive components, especially phenolic compounds. Hydroxytyrosol (HT), the main polyphenol of olive oil, has been reported to be the most bioactive component. This review aims to compile the results of clinical, animal and cell culture studies evaluating the effects of HT on the features of Metabolic Syndrome (MetS) (body weight/adiposity, dyslipidemia, hypertension, and hyperglycemia/insulin resistance) and associated complications (oxidative stress and inflammation)...
March 20, 2017: Nutrients
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