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Resveratrol h

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https://www.readbyqxmd.com/read/29031900/resveratrol-improved-detrusor-fibrosis-induced-by-mast-cells-during-progression-of-chronic-prostatitis-in-rats
#1
Yi He, Huizhi Zeng, Yang Yu, Jiashu Zhang, Qi Liu, Bo Yang
To investigate the detrusor fibrosis and urinary dysfunction in chronic prostatitis (CP), and to investigate whether resveratrol can improve the urinary dysfunction and the underlying molecular mechanism. After rat model of CP is established by subcutaneously injecting DPT vaccine, rats are treated with resveratrol. Experiments of bladder pressure and volume test in rats are used to investigate the effect of resveratrol on urinary dysfunction in CP rats. To assess tissue fibrosis, picrosirius red staining is performed...
October 11, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/29019428/binding-analysis-of-antioxidant-polyphenols-with-pamam-nanoparticles
#2
P Chanphai, H A Tajmir-Riahi
Dietary polyphenols are abundant micronutrients in our diet and paly major role in prevention of degenerative diseases. The binding efficacy of antioxidant polyphenols resveratrol, genistein and curcumin with PAMAM-G3 and PAMAM-G4 nanoparticles was investigated in aqueous solution at physiological conditions, using multiple spectroscopic methods, TEM images and docking studies. The polyphenol bindings are via hydrophilic, hydrophobic and H-bonding contacts with resveratrol forming more stable conjugates. As PAMAM size increased the loading efficacy and the stability of polyphenol-polymer conjugates were increased...
October 11, 2017: Journal of Biomolecular Structure & Dynamics
https://www.readbyqxmd.com/read/29018134/neuronal-sirt1-silent-information-regulator-2-homologue-1-regulates-glycolysis-and-mediates-resveratrol-induced-ischemic-tolerance
#3
Kevin B Koronowski, Nathalie Khoury, Isabel Saul, Zachary B Loris, Charles H Cohan, Holly M Stradecki-Cohan, Kunjan R Dave, Juan I Young, Miguel A Perez-Pinzon
BACKGROUND AND PURPOSE: Resveratrol, at least in part via SIRT1 (silent information regulator 2 homologue 1) activation, protects against cerebral ischemia when administered 2 days before injury. However, it remains unclear if SIRT1 activation must occur, and in which brain cell types, for the induction of neuroprotection. We hypothesized that neuronal SIRT1 is essential for resveratrol-induced ischemic tolerance and sought to characterize the metabolic pathways regulated by neuronal Sirt1 at the cellular level in the brain...
October 10, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28989041/deciphering-molecular-mechanisms-of-arginine-deiminase-based-therapy-comparative-response-analysis-in-paired-human-primary-and-recurrent-glioblastomas
#4
Claudia Maletzki, Yvonne Rosche, Christin Matzack, Aline Scholz, Doreen William, Carl Friedrich Classen, Bernd Kreikemeyer, Michael Linnebacher, Tomas Fiedler
Arginine auxotrophy constitutes the Achilles' heel for several tumors, among them glioblastoma multiforme (GBM). Hence, arginine-depleting enzymes such as arginine deiminase (ADI) from Streptococcus pyogenes are promising for treatment of primary and maybe even refractory GBM. Based on our previous study in which ADI-susceptibility was shown on a panel of patient-derived GBM cell lines, we here aimed at deciphering underlying molecular mechanisms of ADI-mediated growth inhibition. We found that ADI (35 mU/mL) initially induces a cellular stress-response that is characterized by upregulation of genes primarily belonging to the heat-shock protein family...
October 5, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/28988124/in-vitro-and-in-vivo-evaluation-of-targeting-tumor-with-folate-based-amphiphilic-multifunctional-stabilizer-for-resveratrol-nanosuspensions
#5
Lulu Wang, Yangyang Liu, Juan Zhao, Chunpeng Li, Yuqi Zhou, Juan Du, Yancai Wang
Resveratrol (RSV) nanosuspensions, with long term stability and targeting delivery ability, were designed and demonstrated by in vitro and in vivo model. The folate modified distearoylphosphatidyl ethanolamine-polyethylene glycol (DSPE-PEG-FA), as target delivery carrier, was synthesized and confirmed by FTIR and (1)H NMR. D-α-tocopherol polyethylene glycol 1000 succinate (TPGS) and DSPE-PEG-FA used as stabilizers formed two RSV nanosuspensions (RSV-NA and RSV-NB), which were prepared by anti-solvent precipitation method and optimized by central composite design-response surface model (CCD-RSM)...
September 28, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28985092/resveratrol-ameliorates-retinal-ischemia-reperfusion-injury-in-c57bl-6j-mice-via-downregulation-of-caspase-3
#6
Hyemin Seong, Jinhyun Ryu, Woong-Sun Yoo, Seong Jae Kim, Yong-Seop Han, Jong Moon Park, Sang Soo Kang, Seong Wook Seo
PURPOSE: Ischemia/reperfusion (I/R) injury induces apoptosis in retinal ganglion cells (RGCs). Resveratrol (Res) is a potent natural antioxidant with beneficial effects in many ocular diseases, such as age-related macular degeneration, diabetic retinopathy, and glaucoma. Because caspase-3 expression is highly correlated with activation of the apoptotic pathway, the present study aimed to determine whether Res regulates the expression of caspase-3 using an I/R retinal injury mouse model...
October 6, 2017: Current Eye Research
https://www.readbyqxmd.com/read/28981299/receptor-mediated-attachment-and-uptake-of-hyaluronan-conjugates-by-breast-cancer-cells
#7
Kush Shah, Andrew J Ditto, Douglas Cale Crowder, Jean H Overmeyer, Hossein Tavana, William A Maltese, Yang H Yun
Chemotherapy, a mainstay modality for cancer, is often hindered by systemic toxicity and side effects. With the emergence of nanomedicine, the development of drug therapy has shifted toward targeted therapy. Hyaluronan (HA) is an ideal molecule as a targeted delivery system because many carcinomas overexpress HA receptors. We have conjugated resveratrol, a natural polyphenol, and 2-methyl-1H-indol-3-yl)-1-(4-pyridinyl)-2-propen-1-one (MOMIPP), a chalcone, to HA with the goal of enhancing drug bioavailability and targeting triple negative breast cancers...
October 5, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28978315/resveratrol-enhances-anticancer-effects-of-paclitaxel-in-hepg2-human-liver-cancer-cells
#8
Qin Jiang, Manyi Yang, Zhan Qu, Jixiang Zhou, Qi Zhang
BACKGROUND: The aim of this in vitro study was to measure the enhanced anticancer effects of Res (resveratrol) on PA (paclitaxel) in HepG2 human liver cancer cells. METHODS: The MTT (thiazolyl blue tetrazolium bromide, 3-(4,5-Dimethylthiazol-2-yl)-2,5-Diphenyltetrazolium Bromide), flow cytometry, qPCR (real-time quantitative polymerase chain reaction) and western blot assay were used for cells growth inhibitory effects, cells apoptosis (DNA content of sub-G1), mRNA and protein expressions, respectively...
October 4, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28973779/coupled-transcript-and-metabolite-identification-insights-on-induction-and-synthesis-of-resveratrol-in-peanut-wild-relatives-and-synthetic-allotetraploid
#9
P A S V Carvalho, A C Brasileiro, S Leal-Bertioli, D J Bertioli, J P Silva, T S Agostini-Costa, M A Gimenes
Resveratrol is an antioxidant that is a promising antitumoral, cardioprotective and neuroprotective agent. It has been found in a restricted number of plants including peanut (Arachis hypogaea L.) and its wild relatives. The objective of this study was to understand the relationship between resveratrol content and the expression of putative resveratrol synthase genes in four Arachis genotypes. Two diploids and two tetraploid were analyzed. Contents of resveratrol on non- and UV-treated leaves were estimated using HPLC...
September 27, 2017: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28966753/short-term-high-dose-of-quercetin-and-resveratrol-alters-aging-markers-in-human-kidney-cells
#10
Fatemeh Abharzanjani, Mohammad Afshar, Mina Hemmati, Maryam Moossavi
BACKGROUND: Hyperglycemia-mediated oxidative stress implicates in etiology of kidney cell aging and diabetic nephropathy. We evaluated the effects of different doses of resveratrol and quercetin and their combination therapy on aging marker in human kidney cell culture under hyperglycemia condition. METHODS: Human embryonic kidney cell (HEK-293) was cultured in Dulbecco's Modified Eagle Medium (DMEM) containing 100 mM (18 mg/L) for 24 h. The cells were treated with resveratrol (2...
2017: International Journal of Preventive Medicine
https://www.readbyqxmd.com/read/28961176/phytoestrogen-concentrations-in-human-urine-as-biomarkers-for-dietary-phytoestrogen-intake-in-mexican-women
#11
Karina M Chávez-Suárez, María I Ortega-Vélez, Ana I Valenzuela-Quintanar, Marcia Galván-Portillo, Lizbeth López-Carrillo, Julián Esparza-Romero, María S Saucedo-Tamayo, María R Robles-Burgueño, Susana A Palma-Durán, María L Gutiérrez-Coronado, Melissa M Campa-Siqueiros, Patricia Grajeda-Cota, Graciela Caire-Juvera
There has been substantial interest in phytoestrogens, because of their potential effect in reducing cancer and heart disease risk. Measuring concentrations of phytoestrogens in urine is an alternative method for conducting epidemiological studies. Our objective was to evaluate the urinary excretion of phytoestrogens as biomarkers for dietary phytoestrogen intake in Mexican women. Participants were 100 healthy women from 25 to 80 years of age. A food frequency questionnaire (FFQ) and a 24 h recall were used to estimate habitual and recent intakes of isoflavones, lignans, flavonols, coumestrol, resveratrol, naringenin, and luteolin...
September 29, 2017: Nutrients
https://www.readbyqxmd.com/read/28960787/antioxidant-activities-of-novel-resveratrol-analogs-in-breast-cancer
#12
Anwesha Chatterjee, Amruta Ronghe, Subhash B Padhye, David A Spade, Nimee K Bhat, Hari K Bhat
The objective of the present study was to characterize the role of novel resveratrol (Res) analogs: 4-(E)-{(4-hydroxyphenylimino)-methylbenzene, 1, 2-diol} (HPIMBD) and 4-(E)-{(p-tolylimino)-methylbenzene-1,2-diol} (TIMBD) as potent antioxidants against breast cancer. Non-neoplastic breast epithelial cell lines MCF-10A and MCF-10F were treated with 17β-estradiol (E2), Res, HPIMBD, and TIMBD for up to 72 h. mRNA and protein levels of antioxidant genes, superoxide dismutase 3 (SOD3) and N-quinoneoxidoreductase-1 (NQO1) and transcription factors, nuclear factor erythroid 2-related factor (Nrf) 1, 2 and 3 were quantified after the above treatments...
September 28, 2017: Journal of Biochemical and Molecular Toxicology
https://www.readbyqxmd.com/read/28956456/production-of-drug-nanosuspensions-effect-of-drug-physical-properties-on-nanosizing-efficiency
#13
Tao Liu, Rainer H Müller, Jan P Möschwitzer
Objective Drug nanosuspension is one of the established methods to improve the bioavailability of poorly soluble drugs. Drug physical properties aspect (morphology, solid state, starting size et al) is a critical parameter determining the production efficiency. Some drug modification approaches such as spray-drying were proved to improve the millability of drug powders. However, the mechanism behind those improved performances is unclear. This study is to systematically investigate the influence of those physical properties...
September 28, 2017: Drug Development and Industrial Pharmacy
https://www.readbyqxmd.com/read/28937798/dual-effects-of-resveratrol-on-cell-death-and-proliferation-of-colon-cancer-cells
#14
Álvaro San Hipólito-Luengo, Antonio Alcaide, Mariella Ramos-González, Elena Cercas, Susana Vallejo, Alejandra Romero, Elena Talero, Carlos F Sánchez-Ferrer, Virginia Motilva, Concepción Peiró
Colorectal cancer remains a main cause of deaths worldwide, and novel agents are being searched to treat this disease. Polyphenols have emerged as promising therapeutic tools in cancer. Resveratrol (3,5,4'-trihydoxy-trans-stilbene) induces cell death in different tumor cell lines, and it also stimulates the proliferation of specific breast and prostate cancer cell lines. Here, we studied the impact of resveratrol over a 100-fold concentration range on cell death and proliferation of HT-29 colorectal adenocarcinoma cells...
September 22, 2017: Nutrition and Cancer
https://www.readbyqxmd.com/read/28919486/resveratrol-inhibits-proliferation-promotes-differentiation-and-melanogenesis-in-ht-144-melanoma-cells-through-inhibition-of-mek-erk-kinase-pathway
#15
Ming-Jun Lei, Yao Dong, Chun-Xia Sun, Xiang-Hong Zhang
The present study was aimed to investigate the effect of resveratrol on the viability of HT-144 melanoma cells and formation of melanin. MTT assay was used for analysis of cell viability and western blot for determination of phospho-Mek 1/2, phospho-Erk 1/2 (Tyr-204), Mitf, PBG-D and p-CREB-1 expression. MTT assay results showed that treatment of HT-144 cells with various doses of resveratrol led to a concentration dependent inhibition of proliferation. The antiproliferative activity was significant at 15 μM concentration of resveratrol after 24 h...
October 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28911066/prevention-of-chemotherapy-toxicity-by-agents-that-neutralize-or-degrade-cell-free-chromatin
#16
I Mittra, K Pal, N Pancholi, A Shaikh, B Rane, P Tidke, S Kirolikar, N K Khare, K Agrawal, H Nagare, N K Nair
Background: Toxicity associated with chemotherapy is a major therapeutic challenge and is caused by chemotherapy-induced DNA damage and inflammation. We have recently reported that cell-free chromatin (cfCh) fragments released from dying cells can readily enter into healthy cells of the body to integrate into their genomes and induce DNA double-strand breaks, apoptosis and inflammation in them. We hypothesized that much of the toxicity of chemotherapy might be due to release of large quantities of cfCh from dying cells that could trigger an exaggerated DNA damage, apoptotic and inflammatory response in healthy cells over and above that caused by the drugs themselves...
September 1, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28901388/inhibitory-effects-of-17%C3%AE-estradiol-or-a-resveratrol-dimer-on-hypoxia-inducible-factor-1%C3%AE-in-genioglossus-myoblasts-involvement-of-er%C3%AE-and-its-downstream-p38%C3%A2-mapk-pathways
#17
Yuanyuan Li, Yuehua Liu, Yun Lu, Bingjiao Zhao
Deficiency in the functioning of the genioglossus, which is one of the upper airway dilator muscles, is an important cause of obstructive sleep apnea/hypopnea syndrome (OSAHS). Estrogens have been reported to inhibit hypoxia-inducible factor-1α (HIF-1α) expression in hypoxia, regulating its target genes and exerting protective effects on the genioglossus in chronic intermittent hypoxia (CIH). This study aimed to investigate the role of 17β-estradiol (E2) and a resveratrol dimer (RD) on HIF-1α and the underlying mechanism...
September 7, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28892039/metabolites-of-flavonoid-compounds-preserve-indices-of-endothelial-cell-nitric-oxide-bioavailability-under-glucotoxic-conditions
#18
Y Qian, P V A Babu, J D Symons, T Jalili
We hypothesized that metabolites of dietary flavonoids attenuate impairments in nitric oxide (NO) bioavailability evoked by glucotoxic conditions mimicking Type 1 or 2 diabetes. To test this, human aortic endothelial cells were treated with either vehicle control, quercetin-3-O-glucoronide, piceatannol or 3-(3-hydroxyphenyl)propionoic acid for 24 h. These are metabolites of quercetin, resveratrol and proanthocyanidin, respectively. Next, cells were exposed to control (5 mM) or high (25 mM) glucose conditions for 48 h, followed by insulin treatment (100 nM, 10 min) to stimulate NO production...
September 11, 2017: Nutrition & Diabetes
https://www.readbyqxmd.com/read/28883751/resveratrol-raises-in-vitro-anticancer-effects-of-paclitaxel-in-nsclc-cell-line-a549-through-cox-2-expression
#19
Fanhua Kong, Runqi Zhang, Xudong Zhao, Guanlin Zheng, Zhou Wang, Peng Wang
The aim of this study was to determine the raising anticancer effects of resveratrol (Res) on paclitaxel (PA) in non-small cell lung cancer (NSCLC) cell line A549. The 10 µg/ml of Res had no effect on human fetal lung fibroblast MRC-5 cells or on A549 cancer cells and the 5 or 10 µg/ml of PA also had no effect on MRC-5 normal cells. PA-L (5 µg/ml) and PA-H (10 µg/ml) had the growth inhibitory effects in NSCLC cell line A549, and Res increased these growth inhibitory effects. By flow cytometry experiment, after Res (5 µg/ml)+PA-H (10 µg/ml) treatment, the A549 cells showed the most apoptosic cells compared to other group treatments, and after additional treatment with Res, the apoptosic cells of both two PA concentrations were raised...
September 2017: Korean Journal of Physiology & Pharmacology
https://www.readbyqxmd.com/read/28878397/physical-and-pharmacokinetic-characterizations-of-trans-resveratrol-t-rev-encapsulated-with-self-assembling-lecithin-based-mixed-polymeric-micelles-salmpms
#20
Tzu-Pin Li, Wan-Ping Wong, Ling-Chun Chen, Chia-Yu Su, Lih-Geeng Chen, Der-Zen Liu, Hsiu-O Ho, Ming-Thau Sheu
This study involved physical and pharmacokinetic characterizations of trans-resveratrol (t-Rev)-loaded saLMPMs which attempted to improve t-Rev's pharmacokinetic profiles and bioavailability resolving hurdles limiting its potential health benefits. The optimal formulation consisted of t-Rev, lecithin, and Pluronic(®) P123 at 5:2:20 (t-Rev-loaded PP123 saLMPMs) provided mean particle size <200 nm, encapsulation efficiency >90%, and drug loading >15%. Compared to t-Rev solubilized with HP-β-CD, t-Rev-loaded PP123 saLMPMs enhanced t-Rev's stability in PBS at RT, 4 °C, and 37 °C and in FBS at 37 °C, and retarded the in vitro release...
September 6, 2017: Scientific Reports
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