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Resveratrol AND Sirtuins

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https://www.readbyqxmd.com/read/28101569/resveratrol-inhibits-adventitial-fibroblast-proliferation-and-induces-cell-apoptosis-through-the-sirt1-pathway
#1
Lin Ling, Shaohua Gu, Yan Cheng
Atherosclerosis is one of the most important causes of cardiovascular disease and studies have showed that adventitial fibroblasts, which are considered to be the most common cell type of the vascular adventitia, are involved in the development of early atherosclerotic plaques. Resveratrol is a plant polyphenolic compound confirmed to have anti‑atherosclerotic and cardioprotective effects. The aim of the present study was to investigate the effects of resveratrol on adventitial fibroblasts in vitro and to clarify the underlying mechanism...
February 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28029409/serum-concentrations-and-gene-expression-of-sirtuin-1-in-healthy-and-slightly-overweight-subjects-after-caloric-restriction-or-resveratrol-supplementation-a-randomized-trial
#2
Antonio P Mansur, Alessandra Roggerio, Marisa F S Goes, Solange D Avakian, Dalila P Leal, Raul C Maranhão, Célia M C Strunz
BACKGROUND: Sirtuin 1 (Sirt1) plays an important role in vascular biology, and influences aspects of age-dependent atherosclerosis. In animals, the sirtuin system is strongly influenced by resveratrol and caloric restriction, but its expression in humans is controversial. This study investigated the effects of resveratrol and caloric restriction on Sirt1 serum concentrations and vascular biomarkers in a healthy human population. METHODS AND RESULTS: Forty-eight healthy participants (24 women) aged 55-65years were randomized to either 30days of resveratrol administration (500mg/day) or caloric restriction (1000cal/day)...
October 27, 2016: International Journal of Cardiology
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
#3
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/28003866/sirt1-3-activation-by-resveratrol-attenuates-acute-kidney-injury-in-a-septic-rat-model
#4
Siqi Xu, Youguang Gao, Qin Zhang, Siwei Wei, Zhongqing Chen, Xingui Dai, Zhenhua Zeng, Ke-Seng Zhao
Sepsis often results in damage to multiple organ systems, possibly due to severe mitochondrial dysfunction. Two members of the sirtuin family, SIRT1 and SIRT3, have been implicated in the reversal of mitochondrial damage. The aim of this study was to determine the role of SIRT1/3 in acute kidney injury (AKI) following sepsis in a septic rat model. After drug pretreatment and cecal ligation and puncture (CLP) model reproduction in the rats, we performed survival time evaluation and kidney tissue extraction and renal tubular epithelial cell (RTEC) isolation...
2016: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/27995160/dataset-of-trans-resveratrol-on-diabetes-induced-abnormal-spermatogenesis-poly-adp-ribose-polymerase-1-parp1-expression-in-intra-testicular-blood-vessels-and-stage-dependent-expression-of-parp1-and-sirtuin-1-in-the-rat-testis
#5
Ala Abdelali, Maie Al-Bader, Narayana Kilarkaje
This article contains data related to the article "Effects of Trans-Resveratrol on hyperglycemia-induced abnormal spermatogenesis, DNA damage and alterations in poly (ADP-ribose) polymerase signaling in rat testis" (A. Abdelali, M. Al-Bader, N. Kilarkaje, 2016) [1]. The data are related to Resveratrol on diabetes-induced changes in blood glucose levels, body weights of rats, sperm count and motility, expression of poly (ADP-ribose) polymerase-1 (PARP1) in Leydig cells and in intratesticular blood vessels, and stage-dependent expression of PARP1 and Sirtuin 1 (SirT1) in the rat testis...
February 2017: Data in Brief
https://www.readbyqxmd.com/read/27958670/resveratrol-attenuates-mitochondrial-dysfunction-in-the-liver-of-intrauterine-growth-retarded-suckling-piglets-by-improving-mitochondrial-biogenesis-and-redox-status
#6
Hao Zhang, Yue Li, Weipeng Su, Zhixiong Ying, Le Zhou, Lili Zhang, Tian Wang
SCOPE: Emerging evidence has identified mitochondrial biogenesis and oxidative phosphorylation as potential targets for the prevention and treatment of metabolic syndrome. This study investigated the effect of resveratrol (RSV) on hepatic mitochondrial function in intrauterine growth-retarded (IUGR) suckling piglets. METHODS AND RESULTS: Seven normal birth weight (NBW) and fourteen IUGR neonatal male piglets were selected. Piglets were fed control diets supplemented with 0 (NBW-CON), 0 (IUGR-CON), and 1...
December 13, 2016: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/27931585/resveratrol-ameliorated-vascular-calcification-by-regulating-sirt-1-and-nrf2
#7
P Zhang, Y Li, Y Du, G Li, L Wang, F Zhou
Pathologic vascular calcification is a significant reason for mortality and morbidity in patients who suffer from end-stage renal disease (ESRD). Resveratrol, a scavenger for many free radicals, is a crucial compound for biomedicine. However, the role and mechanism of resveratrol in vascular calcification is still unknown. In this study, to mimic vascular calcification in ESRD, we used β-glyceophosphate to stimulate the rat vascular smooth muscle cells (RASMCs). We investigate the therapeutic role of resveratrol pretreatment in vascular calcification...
December 2016: Transplantation Proceedings
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
#8
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...
January 2017: Journal of Pharmacy and Pharmacology
https://www.readbyqxmd.com/read/27878240/sirt1-activator-represses-the-transcription-of-tnf%C3%A2-%C3%AE-in-thp%C3%A2-1-cells-of-a-sepsis-model-via-deacetylation-of-h4k16
#9
Guo-Dong Chen, Wei-Dong Yu, Xiao-Ping Chen
Sepsis is a systemic inflammatory response resulting from the excessive production of pro-inflammatory cytokines, including tumor necrosis factor (TNF)‑α. Sirtuin 1 (SirT1) actively deacetylates histone proteins, and facilitates chromatin compaction and gene silencing. In the present study, a cell model of sepsis, comprising lipopolysaccharide (LPS)‑tolerant THP‑1 cells, was used to investigate whether the SirT1 activator, resveratrol, repressed the transcription of TNF‑α. Chromatin immunoprecipitation and real‑time PCR were used to determine the transcription of the TNF‑α promoter...
December 2016: Molecular Medicine Reports
https://www.readbyqxmd.com/read/27798117/targeting-extracellular-matrix-remodeling-in-disease-could-resveratrol-be-a-potential-candidate
#10
Renu Agarwal, Puneet Agarwal
Disturbances of extracellular matrix homeostasis are associated with a number of pathological conditions. The ability of extracellular matrix to provide contextual information and hence control the individual or collective cellular behavior is increasingly being recognized. Hence, newer therapeutic approaches targeting extracellular matrix remodeling are widely investigated. We reviewed the current literature showing the effects of resveratrol on various aspects of extracellular matrix remodeling. This review presents a summary of the effects of resveratrol on extracellular matrix deposition and breakdown...
October 20, 2016: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/27779675/resveratrol-alleviates-sepsis%C3%A2-induced-myocardial-injury-in-rats-by-suppressing-neutrophil-accumulation-the-induction-of-tnf%C3%A2-%C3%AE-and-myocardial-apoptosis-via-activation-of-sirt1
#11
Rui An, Lei Zhao, Jian Xu, Cong Xi, Haixun Li, Guohong Shen, Wei Zhang, Shumiao Zhang, Lijun Sun
Sepsis is a severe inflammatory response to systemic infection that frequently affects the myocardium. Previous studies have suggested that resveratrol (RESV) is protective in sepsis. The present study aimed to investigate the role of sirtuin 1 (Sirt1) signaling in the protective effect of intraperitoneally administered RESV against sepsis‑induced myocardial injury. Cecal ligation and puncture, or a sham operation, were performed in male Sprague‑Dawley rats, and the levels of tumor necrosis factor (TNF)‑α and myeloperoxidase (MPO) were assessed by ELISA and an MPO activity kit, respectively...
December 2016: Molecular Medicine Reports
https://www.readbyqxmd.com/read/27698719/endothelium-dependent-and-independent-relaxation-induced-by-resveratrol-in-rat-superior-mesenteric-arteries
#12
Yulong Chen, Cangbao Xu, Yahui Wei, Yaping Zhang, Ailan Cao
Resveratrol (Res) is a specific agonist of sirtuin 1, and has many cardioprotective effects. Although Res is able to relax various vascular beds, its pharmacological properties in rat superior mesenteric arteries and the underlying mechanism are not well clarified. The aim of present study was to investigate the vasorelaxant effects of Res on rat superior mesenteric arteries and the mechanisms involved. The isometric tension of rat superior mesenteric arterial rings was recorded in vitro using myography. It was found that Res concentration-dependently relaxed endothelium-intact superior mesenteric artery rings pre-contracted by phenylephrine hydrochloride (Emax, 97...
October 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/27687054/effects-of-trans-resveratrol-on-hyperglycemia-induced-abnormal-spermatogenesis-dna-damage-and-alterations-in-poly-adp-ribose-polymerase-signaling-in-rat-testis
#13
Ala Abdelali, Maie Al-Bader, Narayana Kilarkaje
Diabetes induces oxidative stress, DNA damage and alters several intracellular signaling pathways in organ systems. This study investigated modulatory effects of Trans-Resveratrol on type 1 diabetes mellitus (T1DM)-induced abnormal spermatogenesis, DNA damage and alterations in poly (ADP-ribose) polymerase (PARP) signaling in rat testis. Trans-Resveratrol administration (5mg/kg/day, ip) to Streptozotocin-induced T1DM adult male Wistar rats from day 22-42 resulted in recovery of induced oxidative stress, abnormal spermatogenesis and inhibited DNA synthesis, and led to mitigation of 8-hydroxy-2'-deoxyguanosine formation in the testis and spermatozoa, and DNA double-strand breaks in the testis...
September 27, 2016: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/27659793/downregulation-of-angiotensin-type-1-receptor-and-nuclear-factor-%C3%AE%C2%BAb-by-sirtuin-1-contributes-to-renoprotection-in-unilateral-ureteral-obstruction
#14
Shao-Yu Yang, Shuei-Liong Lin, Yung-Ming Chen, Vin-Cent Wu, Wei-Shiung Yang, Kwan-Dun Wu
Activation of sirtuin 1 (Sirt1) attenuates unilateral ureteral obstruction (UUO)-induced inflammation and fibrosis, suggesting that Sirt1 may prevent tubulointerstitial fibrosis. In this study, we explored changes in the expression of Sirt1 in the kidneys of UUO-treated rats and evaluated the effects of Sirt1 activation or inhibition on renal pathology and mediators of UUO pathogenesis, especially angiotensin II and nuclear factor (NF)-κB, in rats and rat renal fibroblasts. Sirt1 expression increased in the obstructed kidney but not in the contralateral kidney and was mainly detected in tubulointerstitial cells...
2016: Scientific Reports
https://www.readbyqxmd.com/read/27659301/anti-ageing-active-ingredients-from-herbs-and-nutraceuticals-used-in-traditional-chinese-medicine-pharmacological-mechanisms-and-implications-for-drug-discovery
#15
REVIEW
Chun-Yan Shen, Jian-Guo Jiang, Li Yang, Da-Wei Wang, Wei Zhu
Ageing, an unanswered question in the medical field, is a multifactorial process that results in a progressive functional decline in cells, tissues and organisms. Although it is impossible to prevent ageing, slowing down the rate of ageing is entirely possible to achieve. Traditional Chinese medicine (TCM) is characterized by the nourishing of life and its role in anti-ageing is getting more and more attention. This article summarizes the work done on the natural products from TCM that are reported to have anti-ageing effects, in the past two decades...
September 23, 2016: British Journal of Pharmacology
https://www.readbyqxmd.com/read/27590140/comparative-mitochondrial-based-protective-effects-of-resveratrol-and-nicotinamide-in-huntington-s-disease-models
#16
Luana Naia, Tatiana R Rosenstock, Ana M Oliveira, Sofia I Oliveira-Sousa, Gladys L Caldeira, Catarina Carmo, Mário N Laço, Michael R Hayden, Catarina R Oliveira, A Cristina Rego
Sirtuin 1 (SIRT1) is a nicotinamide adenine dinucleotide (NAD(+))-dependent lysine deacetylase that regulates longevity and enhances mitochondrial metabolism. Both activation and inhibition of SIRT1 were previously shown to ameliorate neuropathological mechanisms in Huntington's disease (HD), a neurodegenerative disease that selectively affects the striatum and cortex and is commonly linked to mitochondrial dysfunction. Thus, in this study, we tested the influence of resveratrol (RESV, a SIRT1 activator) versus nicotinamide (NAM, a SIRT1 inhibitor) in counteracting mitochondrial dysfunction in HD models, namely striatal and cortical neurons isolated from YAC128 transgenic mice embryos, HD human lymphoblasts, and an in vivo HD model...
September 2, 2016: Molecular Neurobiology
https://www.readbyqxmd.com/read/27582325/resveratrol-protects-against-high-fat-diet-induced-renal-pathological-damage-and-cell-senescence-by-activating-sirt1
#17
Nannan Zhang, Zhongchi Li, Kang Xu, Yanying Wang, Zhao Wang
Obesity-related renal diseases have been a worldwide issue. Effective strategy that prevents high fat-diet induced renal damage is of great significance. Resveratrol, a natural plant polyphenol, is famous for its antioxidant activity, cardioprotective effects and anticancer properties. However whether resveratrol can play a role in the treatment of renal diseases is unknown. In this study, we added resveratrol in normal glucose or high glucose medium and provide evidences that resveratrol protects against high-glucose triggered oxidative stress and cell senescence...
2016: Biological & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/27581932/sirtuin-1-and-7-mediate-resveratrol-induced-recovery-from-hyper-anxiety-in-high-fructose-fed-prediabetic-rats
#18
B Raghunath Reddy, Swati Maitra, Priya Jhelum, K Praveen Kumar, Pankaj K Bagul, Gagandeep Kaur, Sanjay K Banerjee, Arvind Kumar, Sumana Chakravarty
Hyperglycaemia in diabetes is either caused by reduced availability of insulin (type 1 diabetes, T1D) or insulin resistance to the cells (type 2 diabetes, T2D). In recent years, the prevalence of T2D has increased to an alarming proportion, encompassing 95 percent of the total diabetic burden, probably due to economy-driven changes in lifestyle. Recent epidemiological studies show comorbid depression, anxiety and related mental illness. To explore the molecular mechanisms underlying this comorbid conditions, we used Sprague-Dawley rats on high-fructose diet for 8 weeks to induce prediabetic condition...
September 2016: Journal of Biosciences
https://www.readbyqxmd.com/read/27567590/long-term-treatment-with-nicotinamide-induces-glucose-intolerance-and-skeletal-muscle-lipotoxicity-in-normal-chow-fed-mice-compared-to-diet-induced-obesity
#19
Zhengtang Qi, Jie Xia, Xiangli Xue, Qiang He, Liu Ji, Shuzhe Ding
Nicotinamide (NAM), or vitamin B3, is an essential coenzyme for ATP synthesis and an inhibitor of sirtuin 1. Recently, conflicting results were reported regarding the treatment of NAM in type 2 diabetes and obesity. The aim of this study was to determine whether and how long-term treatment with NAM at lower dose would affect insulin sensitivity in mice fed chow diet. We treated mice with NAM (100 mg/kg/day) and normal chow for 8 weeks. Strikingly, NAM induced glucose intolerance and skeletal muscle lipid accumulation in nonobese mice...
October 2016: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/27552971/slowing-ageing-by-design-the-rise-of-nad-and-sirtuin-activating-compounds
#20
Michael S Bonkowski, David A Sinclair
The sirtuins (SIRT1-7) are a family of nicotinamide adenine dinucleotide (NAD(+))-dependent deacylases with remarkable abilities to prevent diseases and even reverse aspects of ageing. Mice engineered to express additional copies of SIRT1 or SIRT6, or treated with sirtuin-activating compounds (STACs) such as resveratrol and SRT2104 or with NAD(+) precursors, have improved organ function, physical endurance, disease resistance and longevity. Trials in non-human primates and in humans have indicated that STACs may be safe and effective in treating inflammatory and metabolic disorders, among others...
November 2016: Nature Reviews. Molecular Cell Biology
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