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Resveratrol

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https://www.readbyqxmd.com/read/27912881/anti-metastatic-potential-of-resveratrol-and-its-metabolites-by-the-inhibition-of-epithelial-mesenchymal-transition-migration-and-invasion-of-malignant-cancer-cells
#1
REVIEW
Cho-Won Kim, Kyung-A Hwang, Kyung-Chul Choi
BACKGROUND: Increased epithelial-mesenchymal transition (EMT) and cell migration and invasion abilities of cancer cells play important roles in the metastatic process of cancer. Resveratrol is a stilbenoid, a type of natural polyphenol found in the skin of grapes, berries, and peanuts. A number of experiments have examined resveratrol's ability to target diverse pathways associated with carcinogenesis and cancer progression. PURPOSE: This article aims to present updated overview of the knowledge that resveratrol and its metabolites or analogs have the potential to inhibit metastasis of cancer via affecting many signaling pathways related with EMT, cancer migration, and invasion in diverse organs of the body...
December 15, 2016: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/27912878/selecting-optimum-protein-nano-carriers-for-natural-polyphenols-using-chemoinformatics-tools
#2
AbdelKader A Metwally, Sherweit H El-Ahmady, Rania M Hathout
BACKGROUND: The normal fate of any natural product with a therapeutic potential is to be formulated into an effective medicine. However, the conventional methods of selecting the suitable formulations or carriers based on the formulator experiences, trials and errors as well as materials availability do not usually yield the optimal results. HYPOTHESIS: We hypothesize the possibility of the virtual optimum selection of a protein carrier for two polyphenolic compounds widely investigated for their chemopreventive effects; resveratrol and curcumin using a combination of some chemoinformatics tools...
December 15, 2016: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/27911781/structure-and-mechanism-of-nov1-a-resveratrol-cleaving-dioxygenase
#3
Ryan P McAndrew, Noppadon Sathitsuksanoh, Michael M Mbughuni, Richard A Heins, Jose H Pereira, Anthe George, Kenneth L Sale, Brian G Fox, Blake A Simmons, Paul D Adams
Stilbenes are diphenyl ethene compounds produced naturally in a wide variety of plant species and some bacteria. Stilbenes are also derived from lignin during kraft pulping. Stilbene cleavage oxygenases (SCOs) cleave the central double bond of stilbenes, forming two phenolic aldehydes. Here, we report the structure of an SCO. The X-ray structure of NOV1 from Novosphingobium aromaticivorans was determined in complex with its substrate resveratrol (1.89 Å), its product vanillin (1.75 Å), and without any bound ligand (1...
November 30, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27906095/resveratrol-and-acetyl-resveratrol-modulate-activity-of-vegf-and-il-8-in-ovarian-cancer-cell-aggregates-via-attenuation-of-the-nf-%C3%AE%C2%BAb-protein
#4
Alexandria B Tino, Kenny Chitcholtan, Peter H Sykes, Ashley Garrill
BACKGROUND: Key features of advanced ovarian cancer include metastasis via cell clusters in the abdominal cavity and increased chemoresistance. Resveratrol and derivatives of resveratrol have been shown to have antitumour properties. The purpose of this study was to investigate the effect of resveratrol and acetyl-resveratrol on 3D cell aggregates of ovarian cancer, and establish if NF-κB signalling may be a potential target. METHODS: Poly-HEMA coated wells were used to produce 3D aggregates of two ovarian cancer cell lines, SKOV-3 and OVCAR-5...
December 1, 2016: Journal of Ovarian Research
https://www.readbyqxmd.com/read/27905670/induced-pluripotent-stem-cells-as-a-new-getaway-for-bone-tissue-engineering-a-systematic-review
#5
REVIEW
Farshid Bastami, Pantea Nazeman, Hamidreza Moslemi, Maryam Rezai Rad, Kazem Sharifi, Arash Khojasteh
OBJECTIVES: Mesenchymal stem cells (MSCs) are frequently used for bone regeneration, however, they are limited in quantity. Moreover, their proliferation and differentiation capabilities reduce during cell culture expansion. Potential application of induced pluripotent stem cells (iPSCs) has been reported as a promising alternative source for bone regeneration. This study aimed to systematically review the available literature on osteogenic potential of iPSCs and to discuss methods applied to enhance their osteogenic potential...
December 1, 2016: Cell Proliferation
https://www.readbyqxmd.com/read/27904455/profiling-of-disease-related-metabolites-in-grapevine-internode-tissues-infected-with-agrobacterium-vitis
#6
Sung-Min Jung, Youn-Young Hur, John E Preece, Oliver Fiehn, Young-Ho Kim
Green shoot cuttings of 10 different grapevine species were inoculated with Agrobacterium vitis to find disease-related metabolites in the grapevine. Crown galls formed 60 days after inoculation varied in gall severity (GS) evaluated by gall incidence (GI) and gall diameter (GD), which were classified into three response types as RR (low GI and small GD), SR (high GI and small GD), and SS (high GI and large GD), corresponding to resistant, moderately resistant, and susceptible responses, respectively. In this, 4, 4, and 2 Vitis species were classified into RR, SR, and SS, respectively...
December 2016: Plant Pathology Journal
https://www.readbyqxmd.com/read/27904389/performance-of-different-natural-antioxidant-compounds%C3%A2-in-frying-oil
#7
Buket Aydenız, Emin Yilmaz
In this study, the natural green tea extract, purified lycopene, purified resveratrol and purified γ-oryzanol were added into peanut oil and their antioxidant performances were evaluated during frying. Moreover, the sensory properties of fried dough were evaluated to determine the consumption feasibility. All natural antioxidants led to significant increase in the stability of the oil samples. The ranges of measurements in the treatment groups were as follows: free acidity 0.1-2.9 g of oleic acid per 100 g of oil, conjugated dienes 0...
March 2016: Food Technology and Biotechnology
https://www.readbyqxmd.com/read/27903747/improved-glucose-homeostasis-in-obese-mice-treated-with-resveratrol-is-associated-with-alterations-in-the-gut-microbiome
#8
Miranda M Sung, Ty T Kim, Emmanuel Denou, Carrie-Lynn M Soltys, Shereen M Hamza, Nikole J Byrne, Grant Masson, Heekuk Park, David S Wishart, Karen L Madsen, Jonathan D Schertzer, Jason R B Dyck
Oral administration of resveratrol is able to improve glucose homeostasis in obese individuals. Herein we show that resveratrol ingestion produces taxonomic and predicted functional changes in the gut microbiome of obese mice. In particular, changes in the gut microbiome were characterized by a decreased relative abundance of Turicibacteraceae, Moryella, Lachnospiraceae, and Akkermansia and increased relative abundance of Bacteroides and Parabacteroides Moreover, fecal transfer from healthy resveratrol-fed donor mice is sufficient to improve glucose homeostasis in obese mice, suggesting that the resveratrol-mediated changes in the gut microbiome may play an important role in the mechanism of action of resveratrol...
November 30, 2016: Diabetes
https://www.readbyqxmd.com/read/27902771/piceatannol-attenuates-renal-fibrosis-induced-by-unilateral-ureteral-obstruction-via-downregulation-of-histone-deacetylase-4-5-or-p38-mapk-signaling
#9
Sin Young Choi, Zhe Hao Piao, Li Jin, Jung Ha Kim, Gwi Ran Kim, Yuhee Ryu, Ming Quan Lin, Hyung-Seok Kim, Hae Jin Kee, Myung Ho Jeong
Piceatannol, a resveratrol metabolite, is a phenolic compound found in red wine and grapes. We investigated the effect of piceatannol on renal fibrosis and histone deacetylase (HDAC) expression in a mouse model of unilateral ureteral obstruction (UUO). Fibrosis was established by UUO and piceatannol was intraperitoneally injected for 2 weeks. Piceatannol suppressed extracellular matrix (ECM) protein deposition including collagen type I and fibronectin as well as connective tissue growth factor (CTGF) and α-smooth muscle actin (α-SMA) in UUO kidneys...
2016: PloS One
https://www.readbyqxmd.com/read/27901209/effect-of-resveratrol-on-periodontal-pathogens-during-experimental-periodontitis-in-rats
#10
Fabiano Ribeiro Cirano, Renato Correa Viana Casarin, Fernanda Vieira Ribeiro, Marcio Zaffalon Casati, Suzana Peres Pimentel, Tiago Taiete, Maria Martha Bernardi
The objective of this study was to investigate the antibacterial effect of resveratrol against putative periodontal pathogens during the progression of experimental periodontitis in rats. Periodontitis was induced in rats in one of the first molars chosen to receive a ligature. Animals were assigned to one of two groups: daily administration of the placebo solution (control group, n = 12) or 10 mg/Kg of resveratrol (RESV group, n = 12). The therapies were administered systemically for 30 days, for 19 days before periodontitis induction and then for another 11 days...
November 28, 2016: Brazilian Oral Research
https://www.readbyqxmd.com/read/27901083/resveratrol-serves-as-a-protein-substrate-interaction-stabilizer-in-human-sirt1-activation
#11
Xuben Hou, David Rooklin, Hao Fang, Yingkai Zhang
Resveratrol is a natural compound found in red wine that has been suggested to exert its potential health benefit through the activation of SIRT1, a crucial member of the mammalian NAD(+)-dependent deacetylases. SIRT1 has emerged as an attractive therapeutic target for many aging related diseases, however, how its activity can only be activated toward some specific substrates by resveratrol has been poorly understood. Herein, by employing extensive molecular dynamics simulations as well as fragment-centric topographical mapping of binding interfaces, we have clarified current controversies in the literature and elucidated that resveratrol plays an important activation role by stabilizing SIRT1/peptide interactions in a substrate-specific manner...
November 30, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27895784/resveratrol-reverses-p-glycoprotein-mediated-multidrug-resistance-of-u2os-adr-cells-by-suppressing-the-activation-of-the-nf-%C3%AE%C2%BAb-and-p38-mapk-signaling-pathways
#12
Rui Zhang, Ming Lu, Zhen Zhang, Xiliang Tian, Shouyu Wang, Decheng Lv
The present study aimed to investigate the reversal effect of resveratrol on the phenomenon of multidrug resistance in U2OS/adriamycin (ADR) cells and to clarify the molecular mechanisms. To examine the cell survival and half-inhibitory concentration (IC50) of ADR in U2OS and U2OS/ADR cells, 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay was used. The accumulation of ADR in U2OS and U2OS/ADR cells was investigated by flow cytometry. Reverse transcription-quantitative polymerase chain reaction and western blot analysis were used to detect the expression of multidrug resistance protein 1 (MDR1), P-glycoprotein (P-gp), p65 and p38...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27895698/combinations-of-bio-active-dietary-constituents-affect-human-white-adipocyte-function-in-vitro
#13
Ines Warnke, Johan W E Jocken, Rotraut Schoop, Christine Toepfer, Regina Goralczyk, Joseph Schwager
BACKGROUND: Specific bio-active dietary compounds modulate numerous metabolic processes in adipose tissue (AT), including pre-adipocyte proliferation and differentiation. AT dysfunction, rather than an increased fat mass per se, is strongly associated with the development of insulin resistance and is characterized by impaired adipogenesis, hypertrophic adipocytes, inflammation, and impairments in substrate metabolism. A better understanding of mechanisms underlying AT dysfunction may provide new strategies for the treatment of obesity-associated metabolic diseases...
2016: Nutrition & Metabolism
https://www.readbyqxmd.com/read/27895462/effects-of-resveratrol-on-p-glycoprotein-and-cytochrome-p450-3a-in-vitro-and-on-pharmacokinetics-of-oral-saquinavir-in-rats
#14
Jiapeng Li, Yang Liu, Jingru Zhang, Xiaotong Yu, Xiaoling Wang, Libo Zhao
BACKGROUND: The intestinal cytochrome P450 3A (CYP 3A) and P-glycoprotein (P-gp) present a barrier to the oral absorption of saquinavir (SQV). Resveratrol (RESV) has been indicated to have modulatory effects on P-gp and CYP 3A. Therefore, this study was to investigate the effects of RESV on P-gp and CYP 3A activities in vitro and in vivo on oral SQV pharmacokinetics in rats. METHODS: In vitro, intestinal microsomes were used to evaluate RESV effect on CYP 3A-mediated metabolism of SQV; MDR1-expressing Madin-Darby canine kidney (MDCKII-MDR1) cells were employed to assess the impact of RESV on P-gp-mediated efflux of SQV...
2016: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/27894919/resveratrol-attenuates-mpp-induced-mitochondrial-dysfunction-and-cell-apoptosis-via-akt-gsk-3%C3%AE-pathway-in-sn4741-cells
#15
Weijun Zeng, Wei Zhang, Fangfang Lu, Li Gao, Guodong Gao
Oxidative stress and mitochondrial dysfunction play crucial role in the dopaminergic neurons death, which is the pathological feature of Parkinson's disease (PD). Resveratrol (Res), a polyphenol derived from grapes and blueberries, has been reported to reduce oxidative stress injury and to restore mitochondrial function. In this study, we aimed to explore the underlying molecular mechanism of the beneficial effects of Res against MPP+- induced mitochondrial dysfunction and cell apoptosis in SN4741 cells. The data showed that Res significantly alleviated MPP+- induce cytotoxicity and restored MPP+- induced mitochondrial dysfunction in SN4741 cells...
November 26, 2016: Neuroscience Letters
https://www.readbyqxmd.com/read/27891610/resveratrol-supplementation-to-high-fat-diet-fed-pregnant-mice-promotes-brown-and-beige-adipocyte-development-and-prevents-obesity-in-male-offspring
#16
Tiande Zou, Daiwen Chen, Qiyuan Yang, Bo Wang, Mei-Jun Zhu, Peter W Nathanielsz, Min Du
Promoting beige/brite adipogenesis and thermogenic activity is considered as a promising therapeutic approach to reduce obesity and metabolic syndrome. Maternal obesity impairs offspring brown adipocyte function and correlates with obesity in offspring. We previously found that dietary resveratrol (RES) induces beige adipocyte formation in adult mice. Here we further evaluated the effect of resveratrol supplementation to pregnant mice on offspring thermogenesis and energy expenditure. Female C57BL/6 J mice were fed a control diet (CON) or a high fat diet (HFD) with/without 0...
November 28, 2016: Journal of Physiology
https://www.readbyqxmd.com/read/27890623/sirt1-protects-osteoblasts-against-particle-induced-inflammatory-responses-and-apoptosis-in-aseptic-prosthesis-loosening
#17
Zhantao Deng, Zhenheng Wang, Jiewen Jin, Yong Wang, Nirong Bao, Qian Gao, Jianning Zhao
: We hypothesized that SIRT1 downregulation in osteoblasts induced by wear particles was one of the reasons for particle-induced osteolysis (PIO) in total joint arthroplasty failure. In the present study, the expression of SIRT1 was examined in osteoblasts treated with TiAl6V4 particles (TiPs) and CoCrMo particles (CoPs) from materials used in prosthetics and specimens from PIO animal models. To address whether SIRT1 downregulation triggers inflammatory responses and apoptosis in osteoblasts, the effect of a SIRT1 activator, resveratrol on the expression of inflammatory cytokines and apoptosis in particle-treated osteoblasts was tested...
November 23, 2016: Acta Biomaterialia
https://www.readbyqxmd.com/read/27888721/discovery-of-resveratrol-derivatives-as-novel-lsd1-inhibitors-design-synthesis-and-their-biological-evaluation
#18
Ying-Chao Duan, Yuan-Yuan Guan, Xiao-Yu Zhai, Li-Na Ding, Wen-Ping Qin, Dan-Dan Shen, Xue-Qi Liu, Xu-Dong Sun, Yi-Chao Zheng, Hong-Min Liu
Inhibition of lysine-specific demethylase 1 (LSD1) has recently emerged as an attractive therapeutic target for treating cancer and other diseases. As a continuity of our ongoing effort to identify novel small-molecule LSD1-inhibitors, we designed and synthesized a series of resveratrol derivatives, which were shown to be potent inhibitors of LSD1. Among them, compounds 4e and 4m displayed the most potent LSD1-inhibitory activities in enzyme assays, with IC50 values of 121 nM and 123 nM, respectively. Biochemistry study and docking analysis indicated that compounds 4e and 4m were reversible LSD1 inhibitors...
November 16, 2016: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/27882602/the-resveratrol-derivatives-trans-3-5-dimethoxy-4-fluoro-4-hydroxystilbene-and-trans-2-4-5-trihydroxystilbene-decrease-oxidative-stress-and-prolong-lifespan-in-caenorhabditis-elegans
#19
Nadine Fischer, Christian Büchter, Karoline Koch, Sabrina Albert, René Csuk, Wim Wätjen
OBJECTIVES: Resveratrol (trans-3,4',5-trihydroxystilbene (1)) was previously shown to extend the lifespan of different model organisms. However, its pharmacological efficiency is controversially discussed. Therefore, the bioactivity of four newly synthesized stilbenes (trans-3,5-dimethoxy-4-fluoro-4'-hydroxystilbene (3), trans-4'-hydroxy-3,4,5-trifluorostilbene (4), trans-2,5-dimethoxy-4'-hydroxystilbene (5), trans-2,4',5-trihydroxystilbene (6)) was compared to (1) and pterostilbene (trans-3,5-dimethoxy-4'-hydroxystilbene (2)) in the established model organism Caenorhabditis elegans...
November 23, 2016: Journal of Pharmacy and Pharmacology
https://www.readbyqxmd.com/read/27882212/resveratrol-and-exercise
#20
Saltuk Bugra Baltaci, Rasim Mogulkoc, Abdulkerim Kasim Baltaci
Although it is recommended for a healthy lifestyle, moderate exercise is known to lead to oxidative stress, inflammation and muscle injury. Hence there are efforts to develop dietary strategies to counter the oxidative stress caused by physical activity. Recently, there has been an interest in the capability of resveratrol (RES) to modulate physical performance and prevent oxidative stress. Despite the inconsistency among reports regarding the topic, it has been suggested that RES delays fatigue by hindering lipid peroxidation...
November 2016: Biomedical Reports
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