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https://www.readbyqxmd.com/read/28069066/anti-inflammatory-effect-of-resveratrol-in-human-coronary-arterial-endothelial-cells-via-induction-of-autophagy-implication-for-the-treatment-of-kawasaki-disease
#1
Fu-Chen Huang, Ho-Chang Kuo, Ying-Hsien Huang, Hong-Ren Yu, Sung-Chou Li, Hsing-Chun Kuo
BACKGROUND: Kawasaki disease (KD) is an acute febrile vasculitis in childhood, which is the leading cause of acquired heart disease in children. If untreated, KD can result in coronary aneurysms in 25% of patients, and even under intravenous immunoglobulin (IVIG) treatment, 10-20% of children will have IVIG resistance and increased risk of developing coronary arteritis complication. Additional therapies should be explored to decrease the incidence of coronary artery lesions and improve the prognosis in KD...
January 9, 2017: BMC Pharmacology & Toxicology
https://www.readbyqxmd.com/read/28065820/bioavailability-enhanced-resveramax%C3%A2-modulates-quorum-sensing-and-inhibits-biofilm-formation-in-pseudomonas-aeruginosa-pao1
#2
H S Vasavi, H V Sudeep, H B Lingaraju, K Shyam Prasad
Quorum sensing (QS), a cell-to-cell communication mechanism present in many bacterial species plays a key role in regulating the virulence factor and biofilm formation in many pathogens, which causes severe public health risk. Therefore, interfering with QS mechanism offers an attractive strategy to combat bacterial infections. In the present study, anti-QS activity of a novel resveratrol formulation, Resveramax™, was detected using Chromobacterium violaceum biosensor bioassay and the effect of Resveramax on QS-regulated phenotypes in Pseudomonas aeruginosa PAO1 was assessed by standard protocols...
January 5, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28063518/role-of-nutraceutical-sirt1-modulators-in-ampk-and-mtor-pathway-evidence-of-a-synergistic-effect
#3
Luca Giovannini, Sara Bianchi
OBJECTIVE: The aim of this study was to evaluate the effect of different natural substances on SIRT1 expression and on AMPK and mTOR phosphorylation. Moreover, we investigated the presence of a synergistic effect between the substances. METHODS: Human cervical carcinoma cells were seeded in 12-well plates, then incubated with the nine tested substances (resveratrol, quercetin, berberine, catechin, tyrosol, ferulic acid, niclosamide, curcumin, and malvidin) at different concentrations and left in incubation for 3, 6, and 24 h...
February 2017: Nutrition
https://www.readbyqxmd.com/read/28054939/effects-of-resveratrol-on-cognitive-performance-mood-and-cerebrovascular-function-in-post-menopausal-women-a-14-week-randomised-placebo-controlled-intervention-trial
#4
Hamish M Evans, Peter R C Howe, Rachel H X Wong
We tested whether chronic supplementation with resveratrol (a phytoestrogen) could improve cerebrovascular function, cognition and mood in post-menopausal women. Eighty post-menopausal women aged 45-85 years were randomised to take trans-resveratrol or placebo for 14 weeks and the effects on cognitive performance, cerebral blood flow velocity and pulsatility index (a measure of arterial stiffness) in the middle cerebral artery (using transcranial Doppler ultrasound), and cerebrovascular responsiveness (CVR) to both cognitive testing and hypercapnia were assessed...
January 3, 2017: Nutrients
https://www.readbyqxmd.com/read/28006924/in-vitro-and-in-vivo-experimental-hepatotoxic-models-in-liver-research-applications-to-the-assessment-of-potential-hepatoprotective-drugs
#5
H Farghali, M Kgalalelo Kemelo, L Wojnarová, N Kutinová Canová
This mini-review highlights our and others' experience about in vitro and in vivo models that are being used to follow up events of liver injuries under various hepatotoxic agents and potential hepatoprotective drugs. Due to limitations of the outcomes in each model, we focus primarily on two models. First, a developed perfusion method for isolated immobilized hepatocytes that improves the process of oxygenation and helps in end-product removal is of considerable value in improving cell maintenance. This cellular model is presented as a short-term research-scale laboratory bioreactor with various physiological, biochemical, molecular, toxicological and pharmacological applications...
December 21, 2016: Physiological Research
https://www.readbyqxmd.com/read/27992972/protective-features-of-resveratrol-on-human-spermatozoa-cryopreservation-may-be-mediated-through-5-amp-activated-protein-kinase-activation
#6
M Shabani Nashtaei, F Amidi, M A Sedighi Gilani, A Aleyasin, Sh Bakhshalizadeh, M Naji, S Nekoonam
Biochemical and physical modifications during the freeze-thaw process adversely influence the restoration of energy-dependent sperm functions required for fertilization. Resveratrol, a phytoalexin, has been introduced to activate 5' AMP-activated protein kinase which is a cell energy sensor and a cell metabolism regulator. The cryoprotection of resveratrol on sperm cryoinjury via activation of AMP-activated protein kinase also remains to be elucidated. Our aim, thus, was to investigate: (i) the presence and intracellular localization of AMP-activated protein kinase protein; (ii) whether resveratrol may exert a protective effect on certain functional properties of fresh and post-thaw human spermatozoa through modulation of AMP-activated protein kinase...
December 19, 2016: Andrology
https://www.readbyqxmd.com/read/27981502/skin-targeting-of-resveratrol-utilizing-solid-lipid-nanoparticle-engrossed-gel-for-chemically-induced-irritant-contact-dermatitis
#7
S N Shrotriya, N S Ranpise, B V Vidhate
Irritant contact dermatitis (ICD) is a chronic and relapsing skin disease with severe eczematous lesions. Despite its growing prevalence, therapeutic treatments remain limited. Long-term topical corticosteroid treatment can induce skin atrophy, hypopigmentation, and increase in transepidermal water loss. An innovative dermal treatment is essential to reduce the side effects of corticosteroids. Topical resveratrol (RES), although effective for ICD, is a challenging molecule due to low solubility and poor bioavailability...
December 15, 2016: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/27976151/protective-effect-of-dihydro-resveratrol-against-lung-injury-in-rats-with-cerulein-induced-acute-pancreatitis
#8
S Sarwar, Z S Lin, C F Ku, Y F Guan, H T Xiao, X K Shi, H Q Wang, Z X Bian, S W Tsang, H J Zhang
No abstract text is available yet for this article.
December 2016: Planta Medica
https://www.readbyqxmd.com/read/27940867/synthesis-of-resveratrol-tetramers-via-a-stereoconvergent-radical-equilibrium
#9
Mitchell H Keylor, Bryan S Matsuura, Markus Griesser, Jean-Philippe R Chauvin, Ryan A Harding, Mariia S Kirillova, Xu Zhu, Oliver J Fischer, Derek A Pratt, Corey R J Stephenson
Persistent free radicals have become indispensable in the synthesis of organic materials through living radical polymerization. However, examples of their use in the synthesis of small molecules are rare. Here, we report the application of persistent radical and quinone methide intermediates to the synthesis of the resveratrol tetramers nepalensinol B and vateriaphenol C. The spontaneous cleavage and reconstitution of exceptionally weak carbon-carbon bonds has enabled a stereoconvergent oxidative dimerization of racemic materials in a transformation that likely coincides with the biogenesis of these natural products...
December 9, 2016: Science
https://www.readbyqxmd.com/read/27912878/selecting-optimum-protein-nano-carriers-for-natural-polyphenols-using-chemoinformatics-tools
#10
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
#11
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...
December 13, 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
#12
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/27895462/effects-of-resveratrol-on-p-glycoprotein-and-cytochrome-p450-3a-in-vitro-and-on-pharmacokinetics-of-oral-saquinavir-in-rats
#13
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/27867451/thioredoxin-interacting-protein-mediates-nlrp3-inflammasome-activation-involved-in-the-susceptibility-to-ischemic-acute-kidney-injury-in-diabetes
#14
Ye Da Xiao, Ya Yi Huang, Hua Xin Wang, Yang Wu, Yan Leng, Min Liu, Qian Sun, Zhong-Yuan Xia
Kidney in diabetic state is more sensitive to ischemic acute kidney injury (AKI). However, the underlying mechanisms remain unclear. Herein, we examined the impact of diabetes mellitus on thioredoxin-interacting protein (TXNIP) expression and whether mediated NLRP3 activation was associated with renal ischemia/reperfusion- (I/R-) induced AKI. In an in vivo model, streptozotocin-induced diabetic rats showed higher susceptibility to I/R injury with increased TXNIP expression, which was significantly attenuated by resveratrol (RES) treatment (10 mg/kg intraperitoneal daily injection for 7 consecutive days prior to I/R induction)...
2016: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/27866002/live-bio-imaging-with-fully-bio-compatible-organic-fluorophores
#15
Ilseung Yang, Jong Woo Lee, Sunjin Hwang, Jung Eun Lee, Eunhak Lim, June Lee, Doyk Hwang, Clara H Kim, Young-Sam Keum, Seong Keun Kim
We synthesized a new organic fluorescent dye named resveratrone glucoside from the photoreaction of naturally-occurring phytoalexin compound resveratrol glucoside (resveratrol-3-β-mono-d-glucoside), which is abundant in various plants such as berries, herbs, nuts and grapes. Just like its predecessor molecule resveratrone that was previously discovered by our group, resveratrone glucoside possesses excellent optical properties including a high fluorescence quantum yield, a large Stokes' shift, and a large two-photon absorption cross section...
January 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/27856335/examining-the-impact-of-grape-consumption-on-brain-metabolism-and-cognitive-function-in-patients-with-mild-decline-in-cognition-a-double-blinded-placebo-controlled-pilot-study
#16
Jooyeon Lee, Nare Torosyan, Daniel H Silverman
BACKGROUND: Natural compounds in grapes such as resveratrol are known for their antioxidant and anti-inflammatory properties. Some studies have shown a potential role for grapes or wine in slowing cognitive decline and other effects of aging. However, well-controlled experimental data obtained in human subjects are still in need of further development. Here we aimed to systematically assess effects of grapes on regional cerebral metabolism. METHODS: Ten subjects with mild decline in cognition (mean, 72...
January 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/27837285/dendrobium-protoplast-co-culture-promotes-phytochemical-assemblage-in-vitro
#17
Abitha Thomas, Ipsita Pujari, Vasudeep Shetty, Manjunath B Joshi, Padmalatha S Rai, Kapaettu Satyamoorthy, Vidhu Sankar Babu
The present study is intended to analyze the occurrence of potent, low produce, naturally occurring stilbenes in protoplasts of wild species and hybrids of Dendrobium. The wild species selected for the study was Dendrobium ovatum, endemic to Western Ghats of India. Protoplasts were isolated from leaves and tepal tissues of all the species and were cultured purely to generate homofusants and cross-cultured to raise heterofusants. Phytochemical composition of protoplast culture with atypical and pure microcolonies was performed using mass spectrometry...
November 11, 2016: Protoplasma
https://www.readbyqxmd.com/read/27837177/protection-of-resveratrol-on-acute-kidney-injury-in-septic-rats
#18
Y Gan, S Tao, D Cao, H Xie, Q Zeng
AIM: The aim of the study is to investigate protective effect of resveratrol (Res) on acute kidney injury (AKI) in sepsis. METHODS: Rats in sham group received sham operation; in sham + Res received sham operation and Res (3 mg/kg); in cecal ligation and puncture (CLP) established as sepsis; in CLP + Res (3 mg/kg) with sepsis and Res (3 mg/kg); and in CLP + Res (10 mg/kg) with sepsis and Res (10 mg/kg). Survival rate, serum indexes, inflammatory factors, NF-κB-P65, and SIRT1 were detected...
November 11, 2016: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/27829351/recent-updates-in-imperative-natural-compounds-for-healthy-brain-and-nerve-function-a-systematic-review-of-implications-for-multiple-sclerosis
#19
Nima Sanadgol, Shahram Shahraki Zahedani, Mohammad Sharifzadeh, Roghayeh Khalseh, Gullam Reza Barbari, Mohammad Abdollahi
BACKGROUND: The evolution of the 'Green' movement in western society has changed attitudes in the general population who now perceive natural compounds as being inherently harmless and more desirable than artificial chemical products. OBJECTIVE: Considering the growing interest towards introducing naturally emerged medicines, the purpose of this review was to overview the ongoing research into prevention and treatment of multiple sclerosis (MS) lesions. METHOD: This review was carried out by searching bibliographic databases such as PubMed and Scopus for studies reported between 1th January 2008 to 30rd January 2016 on MS patients or animal models of MS, investigating the beneficial effects of natural compounds in MS treatment...
November 8, 2016: Current Drug Targets
https://www.readbyqxmd.com/read/27824430/dietary-fructose-induced-hepatic-injury-in-male-and-female-rats-influence-of-resveratrol
#20
M B Pektas, G Yücel, H B Koca, G Sadi, O G Yıldırım, G Öztürk, F Akar
Purpose: Relatively little is known about gender-dependent susceptibility to hepatic injury induced by nutritional factors. In the current study, we investigated dietary fructose-induced hepatic degeneration and roles of endothelial nitric oxide synthase (eNOS), insulin receptor (IRβ) and substrate-1 (IRS-1) expressions in association with inflammatory markers in male and female rats. Moreover, we examined potential effect of resveratrol on fructose-induced changes. Methods: Male and female rats were divided into 4 groups as control, resveratrol, fructose and resveratrol plus fructose...
November 7, 2016: Drug Research
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