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Inflammation polyphenols

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https://www.readbyqxmd.com/read/28929216/refractory-pouchitis-improves-after-administration-of-the-green-tea-polyphenol-egcg-a-retrospective-review
#1
Minesh Mehta, Shifat Ahmed, Gerald Dryden
INTRODUCTION: Ulcerative colitis (UC) is a common, chronic, inflammatory process limited to the colon. UC affects up to 1 million individuals in the USA alone and requires resection in up to 30% of patients. Resection is often followed by creation of a pouch. Pouchitis is the most common complication of ileal pouch-anal anastomosis (IPAA) following total proctocolectomy, affecting up to 50% of patients. Symptoms include increased stool frequency, urgency, cramping, and bleeding. Management of pouchitis is complex in antibiotic refractory cases...
September 20, 2017: International Journal of Colorectal Disease
https://www.readbyqxmd.com/read/28925872/abdominal-aorta-aneurysm-aaa-is-there-a-role-for-prevention-and-therapy-using-antioxidants
#2
Joël Pincemail, Jean-Olivier Defraigne, Audrey Courtois, Adelin Albert, Jean-Paul Cheramy-Bien, Natzi Sakalihasan
Abdominal aortic aneurysm (AAA) is a degenerative disease that cause mortality in people aged > 65 years. Increased reactive oxygen species (ROS) and oxidative stress seems to play a pivotal role in AAA pathogenesis. Several sources of ROS have been identified in aortic tissues using experimental models: inflammation, increased activity of NAD(P)H or NOX, over-expression of inducible nitric oxide synthase (iNOS), uncoupled endothelial nitric oxide synthase (eNOS), platelets activation and iron release from hemoglobin...
September 18, 2017: Current Drug Targets
https://www.readbyqxmd.com/read/28924387/activation-of-nrf2-attenuates-pulmonary-vascular-remodeling-via-inhibiting-endothelial-to-mesenchymal-transition-an-insight-from-a-plant-polyphenol
#3
Yucai Chen, Tianyi Yuan, Huifang Zhang, Yu Yan, Danshu Wang, Lianhua Fang, Yang Lu, Guanhua Du
The endothelial-to-mesenchymal transition (EndMT) has been demonstrated to be involved in pulmonary vascular remodeling. It is partly attributed to oxidative and inflammatory stresses in endothelial cells. In current study, we conducted a series of experiments to clarify the effect of salvianolic acid A (SAA), a kind of polyphenol compound, in the process of EndMT in human pulmonary arterial endothelial cells and in vivo therapeutic efficacy on vascular remodeling in monocrotaline (MCT)-induced EndMT. EndMT was induced by TGFβ1 in human pulmonary arterial endothelial cells (HPAECs)...
2017: International Journal of Biological Sciences
https://www.readbyqxmd.com/read/28923043/rosmarinic-acid-induces-rabbit-articular-chondrocyte-differentiation-by-decreases-matrix-metalloproteinase-13-and-inflammation-by-upregulating-cyclooxygenase-2-expression
#4
Seong-Hui Eo, Song Ja Kim
BACKGROUND: Matrix metalloproteinases (MMPs) are known to play an important role in the degradation of the extracellular matrix and the pathological progression of osteoarthritis (OA). The natural polyphenolic compound rosmarinic acid (Ros. A) has been shown to suppress the inhibitory activity of matrix metalloproteinases (MMPs). However, the effects of Ros. A on OA have not been investigated. METHODS: In the current study, primary articular chondrocytes were cultured from rabbit articular cartilage and treated with Ros...
September 18, 2017: Journal of Biomedical Science
https://www.readbyqxmd.com/read/28911547/multifunctions-of-dietary-polyphenols-in-the-regulation-of-intestinal-inflammation
#5
REVIEW
Makoto Shimizu
Food for specified health use is a type of functional food approved by the Japanese government, with more than 1250 products in 10 health-claim categories being approved as of April 2016. Polyphenols are currently used as functional ingredients in seven of the 10 categories. Although they have not yet been used for the food-for-specified-health-use category of "gut health promotion," polyphenols are expected to contribute to the future development of gut-modulating food. Intestinal functions include digestion/absorption, acting as a barrier, recognition of external factors, and signal transduction...
January 2017: Journal of Food and Drug Analysis
https://www.readbyqxmd.com/read/28911531/biological-actions-and-molecular-effects-of-resveratrol-pterostilbene-and-3-hydroxypterostilbene
#6
REVIEW
Hui-Yun Tsai, Chi-Tang Ho, Yu-Kuo Chen
Stilbenes are a class of polyphenolic compounds, naturally found in a wide variety of dietary sources such as grapes, berries, peanuts, red wine, and some medicinal plants. There are several well-known stilbenes including trans-resveratrol, pterostilbene, and 3'-hydroxypterostilbene. The core chemical structure of stilbene compounds is 1,2-diphenylethylene. Recently, stilbenes have attracted extensive attention and interest due to their wide range of health-beneficial effects such as anti-inflammation, -carcinogenic, -diabetes, and -dyslipidemia activities...
January 2017: Journal of Food and Drug Analysis
https://www.readbyqxmd.com/read/28906474/non-clinical-studies-for-evaluation-of-8-c-rhamnosyl-apigenin-purified-from-peperomia-obtusifolia-against-acute-edema
#7
Cinthia I Tamayose, Paulete Romoff, Daniela O Toyama, Henrique H Gaeta, Caroline R C Costa, Mariana N Belchor, Bruna D Ortolan, Leosvaldo S M Velozo, Maria A C Kaplan, Marcelo J P Ferreira, Marcos H Toyama
Compound 8-C-rhamnosyl apigenin (8CR) induced a moderate reduction in the enzymatic activity of secretory phospholipase A2 (sPLA2) from Crotalus durissus terrificus and cytosolic phospholipase A2 (cPLA2), but the compound also significantly inhibited the enzymatic activity of the enzyme cyclooxygenase. In vitro assays showed that the compound induced a slight change in the secondary structure of sPLA2 from Crotalus durissus terrificus snake venom. In vivo assays were divided into two steps. In the first step, the 8CR compound was administered by intraperitoneal injections 30 min prior to administration of sPLA2...
September 14, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28904352/polyphenols-journey-through-blood-brain-barrier-towards-neuronal-protection
#8
I Figueira, G Garcia, R C Pimpão, A P Terrasso, I Costa, A F Almeida, L Tavares, T F Pais, P Pinto, M R Ventura, A Filipe, G J McDougall, D Stewart, K S Kim, I Palmela, D Brites, M A Brito, C Brito, C N Santos
Age-related complications such as neurodegenerative disorders are increasing and remain cureless. The possibility of altering the progression or the development of these multifactorial diseases through diet is an emerging and attractive approach with increasing experimental support. We examined the potential of known bioavailable phenolic sulfates, arising from colonic metabolism of berries, to influence hallmarks of neurodegenerative processes. In silico predictions and in vitro transport studies across blood-brain barrier (BBB) endothelial cells, at circulating concentrations, provided evidence for differential transport, likely related to chemical structure...
September 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28899766/health-relevance-of-the-modification-of-low-grade-inflammation-in-ageing-inflammageing-and-the-role-of-nutrition
#9
REVIEW
Philip C Calder, Nabil Bosco, Raphaëlle Bourdet-Sicard, Lucile Capuron, Nathalie Delzenne, Joel Doré, Claudio Franceschi, Markus J Lehtinen, Tobias Recker, Stefano Salvioli, Francesco Visioli
Ageing of the global population has become a public health concern with an important socio-economic dimension. Ageing is characterised by an increase in the concentration of inflammatory markers in the bloodstream, a phenomenon that has been termed "inflammageing". The inflammatory response is beneficial as an acute, transient reaction to harmful conditions, facilitating the defence, repair, turnover and adaptation of many tissues. However, chronic and low grade inflammation is likely to be detrimental for many tissues and for normal functions...
September 9, 2017: Ageing Research Reviews
https://www.readbyqxmd.com/read/28898790/cytotoxicity-and-potential-anti-inflammatory-activity-of-velutin-on-raw-264-7-cell-line-differentiation-implications-in-periodontal-bone-loss
#10
Carlos Brito, Alexander Stavroullakis, Tatiane Oliveira, Anuradha Prakki
OBJECTIVES: Hypoxia-inducible factor-1α (HIF-1α) has been implicated in periodontal tissue inflammation and possibly in osteoclast differentiation, while polyphenols are known to be anti-inflammatory natural compounds that are capable of regulating the NF-κB protein complex pathway. The objective of this study was to investigate cytotoxicity and HIF-1α expression through the NF-κB pathway by polyphenol velutin (Euterpe oleracea Mart.), found in the pulp of acai fruit, during inflammatory RAW 264...
September 2, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28891568/selective-antitumoural-action-of-pressurized-mango-leaf-extracts-against-minimally-and-highly-invasive-breast-cancer
#11
M T Fernández-Ponce, A López-Biedma, C Sánchez-Quesada, L Casas, C Mantell, J J Gaforio, E J Martínez de la Ossa
Mango leaf tea has been traditionally used by different cultures to reduce inflammation in the body. There is evidence that chronic inflammation increases the risk of cancer. This study investigates the antitumoural effects of pressurized mango leaf extracts on minimally (MCF7) and highly invasive (MDA-MB-231) breast cancer cells as well as on non-tumourigenic cells (MCF10). Extracts showed protective properties against oxidation and cytotoxic effects against breast cancer cell lines, causing minor damage to non-carcinogenic cells...
September 11, 2017: Food & Function
https://www.readbyqxmd.com/read/28874357/reduced-obesity-diabetes-and-steatosis-upon-cinnamon-and-grape-pomace-are-associated-with-changes-in-gut-microbiota-and-markers-of-gut-barrier
#12
Matthias Van Hul, Lucie Geurts, Hubert Plovier, Céline Druart, Amandine Everard, Marcus Ståhlman, Moez Rhimi, Kleopatra Chira, Pierre-Louis Teissedre, Nathalie M Delzenne, Emmanuelle Maguin, Angèle Guilbot, Amandine Brochot, Philippe Gerard, Fredrik Bäckhed, Patrice D Cani
Increasing evidence suggests that polyphenols have a significant potential in the prevention and treatment of risk factors associated with metabolic syndrome. The objective of this study was to assess the metabolic outcomes of two polyphenol-containing extracts from cinnamon bark (CBE) and grape pomace (GPE) on C57BL/6J mice fed a high-fat diet (HFD) for 8 weeks. Both CBE and GPE were able to decrease fat mass gain and adipose tissue inflammation in mice fed a HFD without reducing food intake. This was associated with reduced liver steatosis and lower plasma non-esterified fatty acids levels...
September 5, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28863365/a-polyphenolic-extract-from-green-tea-leaves-activates-fat-browning-in-high-fat-diet-induced-obese-mice
#13
Audrey M Neyrinck, Laure B Bindels, Lucie Geurts, Matthias Van Hul, Patrice D Cani, Nathalie M Delzenne
Fat browning has emerged as an attractive target for the treatment of obesity and related metabolic disorders. Its activation leads to increased energy expenditure and reduced adiposity, thus contributing to a better energy homeostasis. Green tea extracts (GTEs) were shown to attenuate obesity and low-grade inflammation and to induce the lipolytic pathway in the white adipose tissue (WAT) of mice fed a high-fat diet. The aim of the present study was to determine whether the antiobesity effect of an extract from green tea leaves was associated with the activation of browning in the WAT and/or the inhibition of whitening in the brown adipose tissue (BAT) in HF-diet induced obese mice...
July 24, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28856691/therapeutic-applications-of-resveratrol-and-its-derivatives-on-periodontitis
#14
REVIEW
Yu-Tang Chin, Guei-Yun Cheng, Ya-Jung Shih, Chi-Yu Lin, Shan-Jen Lin, Hsuan-Yu Lai, Jacqueline Whang-Peng, Hsien-Chung Chiu, Sheng-Yang Lee, Earl Fu, Heng-Yuan Tang, Hung-Yun Lin, Leroy F Liu
Periodontitis is an inflammatory disease of the supporting tissues of the teeth induced by periodontopathic bacteria that results in the progressive destruction of periodontal tissues. Treatment of periodontitis is painful and time-consuming. Recently, herbal medicines have been considered for use in treating inflammation-related diseases, including periodontitis. Resveratrol and its derivative 2,3,5,4'-tetrahydroxystilbene-2-O-β-glucoside (THSG), a polyphenol extracted from Polygonum multiflorum, have anti-inflammatory properties and other medical benefits...
August 30, 2017: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/28846633/strawberries-improve-pain-and-inflammation-in-obese-adults-with-radiographic-evidence-of-knee-osteoarthritis
#15
Jace Schell, R Hal Scofield, James R Barrett, Biji T Kurien, Nancy Betts, Timothy J Lyons, Yan Daniel Zhao, Arpita Basu
Osteoarthritis (OA), the most common form of arthritis, is a significant public health burden in U.S. adults. Among its many risk factors, obesity is a key player, causing inflammation, pain, impaired joint function, and reduced quality of life. Dietary polyphenols and other bioactive compounds in berries, curcumin, and tea have shown effects in ameliorating pain and inflammation in OA, but few clinical studies have been reported. The purpose of the present study was to examine the effects of dietary strawberries on pain, markers of inflammation, and quality of life indicators in obese adults with OA of the knee...
August 28, 2017: Nutrients
https://www.readbyqxmd.com/read/28845517/the-grapes-and-wrath-using-resveratrol-to-treat-the-pathophysiology-of-hemorrhagic-shock
#16
REVIEW
Carrie A Sims, Joseph A Baur
Resveratrol, a naturally occurring polyphenol found in grapes, has been shown to reduce oxidative stress and inflammation in a variety of conditions. Recently, resveratrol has been investigated as a potential adjunct to resuscitation therapy for hemorrhagic shock-a condition characterized by tissue hypoxia, mitochondrial dysfunction, and inflammation. Although standard resuscitation restores tissue perfusion, it can exacerbate oxidative stress and organ damage. In rodent models of severe hemorrhagic shock, resveratrol mitigates reperfusion injury, preserves organ function, and improves survival...
August 27, 2017: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/28842273/oxidative-stress-and-cellular-pathways-of-asthma-and-inflammation-therapeutic-strategies-and-pharmacological-targets
#17
REVIEW
Vikas Mishra, Jaspreet Banga, Patricia Silveyra
Asthma is a complex inflammatory disease characterized by airway inflammation and hyperresponsiveness. The mechanisms associated with the development and progression of asthma have been widely studied in multiple populations and animal models, and these have revealed involvement of various cell types and activation of intracellular signaling pathways that result in activation of inflammatory genes. Significant contributions of Toll-like-receptors (TLRs) and transcription factors such as NF-кB, have been reported as major contributors to inflammatory pathways...
August 23, 2017: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28840618/the-beneficial-effect-of-anthocyanidin-rich-vitis-vinifera-l-grape-skin-extract-on-metabolic-changes-induced-by-high-fat-diet-in-mice-involves-antiinflammatory-and-antioxidant-actions
#18
Gisele França da Costa, Izabelle Barcellos Santos, Graziele Freitas de Bem, Viviane Silva Cristino Cordeiro, Cristiane Aguiar da Costa, Lenize Costa Reis Marins de Carvalho, Dayane Teixeira Ognibene, Angela Castro Resende, Roberto Soares de Moura
We hypothesized that a polyphenol-rich extract from Vitis vinifera L. grape skin (GSE) may exert beneficial effects on obesity and related metabolic disorders induced by a high-fat diet (HFD). C57/BL6 mice were fed a standard diet (10% fat, control, and GSE groups) or an HFD (60% fat, high fat (HF), and HF + GSE) with or without GSE (200 mg/kg/day) for 12 weeks. GSE prevented weight gain; dyslipidemia; insulin resistance; the alterations in plasma levels of leptin, adiponectin, and resistin; and the deregulation of leptin and adiponectin expression in adipose tissue...
August 25, 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/28839370/optimization-of-surfactant-mediated-ultrasonic-assisted-extraction-of-antioxidant-polyphenols-from-rattan-tea-ampelopsis-grossedentata-using-response-surface-methodology
#19
Feng Li, Aun Raza, Yan-Wei Wang, Xiu-Quan Xu, Guan-Hua Chen
BACKGROUND: Rattan tea is a medicinal plant that has been used for many years for the treatment of inflammation, fatty liver, tumor, diabetes, and hyperlipidemia. OBJECTIVE: A green and novel approach based on surfactant-mediated, ultrasonic-assisted extraction (SM-UAE) was developed for the extraction of antioxidant polyphenols from Rattan tea. A nonionic surfactant Tween-80 was selected as extraction solvent. The antioxidant activity was measured by total phenolic content (TPC) and ferric-reducing/antioxidant capacity (FRAC) assay...
July 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/28839206/grape-seed-polyphenols-play-a-protective-role-in-elastase-induced-abdominal-aortic-aneurysm-in-mice
#20
Chao Wang, Yunxia Wang, Maomao Yu, Cong Chen, Lu Xu, Yini Cao, Rong Qi
Abdominal aortic aneurysm (AAA) is a kind of disease characterized by aortic dilation, whose pathogenesis is linked to inflammation. This study aimed to determine whether grape-seed polyphenols (GSP) has anti-AAA effects and what mechanism is involved, thus to find a way to prevent occurrence and inhibit expansion of small AAA. In our study, AAA was induced by incubating the abdominal aorta of the mice with elastase, and GSP was administrated to the mice by gavage at different doses beginning on the day of the AAA inducement...
August 24, 2017: Scientific Reports
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