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Resveratrol AND AMPK

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https://www.readbyqxmd.com/read/28280423/retraction-notice-to-resveratrol-attenuates-lipopolysaccharide-induced-dysfunction-of-blood-brain-barrier-in-endothelial-cells-via-ampk-activation
#1
Min Hu, Bo Liu
[This retracts the article on p. 325 in vol. 20, PMID: 27382348.].
March 2017: Korean Journal of Physiology & Pharmacology
https://www.readbyqxmd.com/read/28264510/peripheral-and-cerebral-resistance-arteries-in-the-spontaneously-hypertensive-heart-failure-rat-effects-of-stilbenoid-polyphenols
#2
Danielle I Lee, Crystal Acosta, Christopher M Anderson, Hope D Anderson
Hypertension is associated with aberrant structure and mechanical properties of resistance arteries. We determined the effects of resveratrol, a non-flavonoid polyphenol found in foods such as red grapes, and structurally-similar analogues (pterostilbene and gnetol) on systolic blood pressure (SBP) and resistance arteries from the spontaneously hypertensive heart failure (SHHF) rat. SBP was elevated in 17-week-old SHHF vs. Sprague-Dawley rats (normotensive control; 194 ± 3 vs. 142 ± 6 mmHg, p < 0.01) and was unaffected by resveratrol, pterostilbene, or gnetol (2...
February 28, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28238848/resveratrol-protects-against-spinal-cord-injury-by-activating-autophagy-and-inhibiting-apoptosis-mediated-by-the-sirt1-ampk-signaling-pathway
#3
Haosen Zhao, Shurui Chen, Kai Gao, Zipeng Zhou, Chen Wang, Zhaoliang Shen, Yue Guo, Zhuo Li, Zhanghui Wan, Chang Liu, Xifan Mei
Spinal cord injury (SCI) is a devastating condition with few effective treatments. Resveratrol, a polyphenolic compound, has exhibited neuroprotective effects in many neurodegenerative diseases. However, the explicit effect and mechanism of resveratrol on SCI is still unclear. Adenosine 5' monophosphate-activated protein kinase (AMPK) and Sirtuin 1 (SIRT1), the downstream protein, play key roles in metabolizing of energy, resisting of resistance, and cellular protein homeostasis. In this study, we determined the effects of resveratrol on SCI and their potential relationship with SIRT1/AMPK signaling pathway, autophagy and apoptosis...
February 24, 2017: Neuroscience
https://www.readbyqxmd.com/read/28216158/resveratrol-regulates-neuronal-glucose-uptake-and-insulin-sensitivity-via-p21-activated-kinase-2-pak2
#4
Pallavi Varshney, Chinmoy Sankar Dey
We have recently reported P21-activated kinase 2 (PAK2), a serine/threonine kinase as a negative regulator of neuronal glucose uptake and insulin sensitivity. Resveratrol (RSV), a natural polyphenol with anti-oxidative, anti-inflammatory and anti-diabetic properties, regulates PAK2 activity in HepG2 and ESC-B5 cell apoptosis. However, regulation of PAK2 by RSV in neuronal insulin signaling pathway, if any, is still unknown. In the present study, RSV treatment significantly increased PAK2 activity under insulin-sensitive and insulin-resistant condition, along with a marked decrease in glucose uptake in differentiated N2A cells...
April 1, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28197628/resveratrol-induced-autophagy-and-apoptosis-in-cisplatin-resistant-human-oral-cancer-car-cells-a-key-role-of-ampk-and-akt-mtor-signaling
#5
Chao-Hsiang Chang, Chao-Ying Lee, Chi-Cheng Lu, Fuu-Jen Tsai, Yuan-Man Hsu, Je-Wei Tsao, Yu-Ning Juan, Hong-Yi Chiu, Jai-Sing Yang, Ching-Chiung Wang
Resveratrol is known to be an effective chemo-preventive phytochemical against multiple tumor cells. However, the increasing drug resistance avoids the cancer treatment in oral cavity cancer. In this study, we investigated the oral antitumor activity of resveratrol and its mechanism in cisplatin-resistant human oral cancer CAR cells. Our results demonstrated that resveratrol had an extremely low toxicity in normal oral cells and provoked autophagic cell death to form acidic vesicular organelles (AVOs) and autophagic vacuoles in CAR cells by acridine orange (AO) and monodansylcadaverine (MDC) staining...
March 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28195005/current-evidence-for-ampk-activation-involvement-on-resveratrol-induced-neuroprotection-in-cerebral-ischemia
#6
Narayana Pineda-Ramírez, Germán Fernando Gutiérrez Aguilar, Mónica Espinoza-Rojo, Penélope Aguilera
OBJECTIVES: Cerebral ischemia is a neurological condition in which energetics and oxidative stress are dysregulated. Resveratrol is a stilbene with potent pharmacological effects associated with its antioxidant properties. In the brain, resveratrol produces protective responses against ischemia, decreases infarct volume and improves neurological function. Adenosine monophosphate-activated protein kinase (AMPK) is a cellular sensor that acts as a switch to initiate adaptive changes in response to fluctuations in energy metabolism...
February 14, 2017: Nutritional Neuroscience
https://www.readbyqxmd.com/read/28157155/disparate-effects-of-stilbenoid-polyphenols-on-hypertrophic-cardiomyocytes-in-vitro-vs-in-the-spontaneously-hypertensive-heart-failure-rat
#7
Bolanle C Akinwumi, Pema Raj, Danielle I Lee, Crystal Acosta, Liping Yu, Samuel M Thomas, Kalyanam Nagabhushanam, Muhammed Majeed, Neal M Davies, Thomas Netticadan, Hope D Anderson
Stilbenoids are bioactive polyphenols, and resveratrol (trans-3,5,40-trihydroxystilbene) is a representative stilbenoid that reportedly exerts cardioprotective actions. As resveratrol exhibits low oral bioavailability, we turned our attention to other stilbenoid compounds with a history of medicinal use and/or improved bioavailability. We determined the effects of gnetol (trans-3,5,20,60-tetrahydroxystilbene) and pterostilbene (trans-3,5-dimethoxy-40-hydroxystilbene) on cardiac hypertrophy. In vitro, gnetol and pterostilbene prevented endothelin-1-induced indicators of cardiomyocyte hypertrophy including cell enlargement and protein synthesis...
February 1, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28146130/effects-of-natural-products-on-fructose-induced-nonalcoholic-fatty-liver-disease-nafld
#8
REVIEW
Qian Chen, Tingting Wang, Jian Li, Sijian Wang, Feng Qiu, Haiyang Yu, Yi Zhang, Tao Wang
As a sugar additive, fructose is widely used in processed foods and beverages. Excessive fructose consumption can cause hepatic steatosis and dyslipidemia, leading to the development of metabolic syndrome. Recent research revealed that fructose-induced nonalcoholic fatty liver disease (NAFLD) is related to several pathological processes, including: (1) augmenting lipogenesis; (2) leading to mitochondrial dysfunction; (3) stimulating the activation of inflammatory pathways; and (4) causing insulin resistance...
January 31, 2017: Nutrients
https://www.readbyqxmd.com/read/28108646/postnatal-resveratrol-supplementation-improves-cardiovascular-function-in-male-and-female-intrauterine-growth-restricted-offspring
#9
Amin Shah, Anita Quon, Jude S Morton, Sandra T Davidge
Intrauterine growth restriction (IUGR) may predispose offspring to an increased susceptibility of developing cardiovascular disease (CVD) in adult life. The window of opportunity to treat later life CVD programmed in fetal life is critical. The aim of this study was to identify the effect of resveratrol treatment of IUGR offspring at a time of known CV dysfunction. Sprague-Dawley male and female rat offspring who experienced normoxia (21% O2; control) or hypoxia (11% O2; IUGR) in utero were fed a high-fat (HF) diet (3-21 weeks of age) or a HF diet (3-21 weeks of age) supplemented with resveratrol from 13 to 21 weeks of age...
January 2017: Physiological Reports
https://www.readbyqxmd.com/read/28063518/role-of-nutraceutical-sirt1-modulators-in-ampk-and-mtor-pathway-evidence-of-a-synergistic-effect
#10
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/27998210/metabolic-stress-induces-cognitive-disturbances-and-inflammation-in-aged-mice-protective-role-of-resveratrol
#11
Veronica Palomera-Ávalos, Christian Griñán-Ferré, Vanesa Izquierdo, Antonio Camins, Coral Sanfeliu, Mercè Pallàs
Inflammation and oxidative stress (OS) are key points in age progression. Both processes impact negatively in cognition and in brain functions. Resveratrol (RV) has been postulated as a potent antioxidant natural compound, with rejuvenating properties. Inducing a metabolic stress by high-fat (HF) diet in aged C56/BL6 (24 months) led to cognitive disturbances compared with control age mated and with young mice. These changes were prevented by RV. Molecular determinations demonstrated a significant increase in some inflammatory parameters (TNF-α, Cxcl10, IL-1, IL-6, and Ccl3) in old mice, but slight changes in OS machinery...
January 25, 2017: Rejuvenation Research
https://www.readbyqxmd.com/read/27873458/resveratrol-enhances-brown-adipocyte-formation-and-function-by-activating-amp-activated-protein-kinase-ampk-%C3%AE-1-in-mice-fed-high-fat-diet
#12
Songbo Wang, Xingwei Liang, Qiyuan Yang, Xing Fu, Meijun Zhu, B D Rodgers, Qingyan Jiang, Michael V Dodson, Min Du
SCOPE: Enhancing the formation and function of brown adipose tissue (BAT) increases thermogenesis and hence reduces obesity. Thus, we investigate the effects of resveratrol (Resv) on brown adipocyte formation and function in mouse interscapular BAT (iBAT). METHODS AND RESULTS: CD1 mice and stromal vascular cells (SVCs) isolated from iBAT were treated with Resv. Expression of brown adipogenic and thermogenic markers, and involvement of AMP-activated protein kinase (AMPK)α1 were assessed...
November 22, 2016: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/27836811/sirt1-ampk-crosstalk-is-involved-in-high-glucose-dependent-impairment-of-insulin-responsiveness-in-primary-rat-podocytes
#13
Dorota Rogacka, Agnieszka Piwkowska, Irena Audzeyenka, Stefan Angielski, Maciej Jankowski
Growing evidence indicates that in diabetes, high glucose concentrations affect podocyte metabolism and function. The crucial pathological feature of type 2 diabetes mellitus and metabolic syndrome is insulin resistance, often developed as a result of dysregulation of nutrient-responsible systems and disturbance of cellular homeostasis under diabetic conditions. Here, we report the involvement of the reciprocal interplay between deacetylase SIRT1 and protein kinase AMPK in podocyte high glucose-induced abolition of insulin-dependent glucose uptake, manifesting insulin resistance...
November 9, 2016: Experimental Cell Research
https://www.readbyqxmd.com/read/27789328/withdrawn-resveratrol-increases-microrna-130a-expression-to-promote-angiogenesis-and-improve-heart-functions-in-mice-after-myocardial-infarction
#14
Guanmin Tang, Lei Peng, Gang Qian, Shijun Wang, Huilin Hu, Xiaoping Zhang, Guojie Song, Ming Yao, Changlin Zhai
This article has been withdrawn at the request of the authors. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at http://www.elsevier.com/locate/withdrawalpolicy.
October 24, 2016: Experimental and Molecular Pathology
https://www.readbyqxmd.com/read/27788262/resveratrol-reverses-functional-chagas-heart-disease-in-mice
#15
Glaucia Vilar-Pereira, Vitor C Carneiro, Hilton Mata-Santos, Amanda R R Vicentino, Isalira P Ramos, Naira L L Giarola, Daniel F Feijó, José R Meyer-Fernandes, Heitor A Paula-Neto, Emiliano Medei, Marcelo T Bozza, Joseli Lannes-Vieira, Claudia N Paiva
Chronic chagasic cardiomyopathy (CCC) develops years after acute infection by Trypanosoma cruzi and does not improve after trypanocidal therapy, despite reduction of parasite burden. During disease, the heart undergoes oxidative stress, a potential causative factor for arrhythmias and contractile dysfunction. Here we tested whether antioxidants/ cardioprotective drugs could improve cardiac function in established Chagas heart disease. We chose a model that resembles B1-B2 stage of human CCC, treated mice with resveratrol and performed electrocardiography and echocardiography studies...
October 2016: PLoS Pathogens
https://www.readbyqxmd.com/read/27669292/yap-inhibition-by-resveratrol-via-activation-of-ampk-enhances-the-sensitivity-of-pancreatic-cancer-cells-to-gemcitabine
#16
Zhengdong Jiang, Xin Chen, Ke Chen, Liankang Sun, Luping Gao, Cancan Zhou, Meng Lei, Wanxing Duan, Zheng Wang, Qingyong Ma, Jiguang Ma
Resveratrol, a natural polyphenol present in most plants, inhibits the growth of numerous cancers both in vitro and in vivo. Aberrant expression of YAP has been reported to activate multiple growth-regulatory pathways and confer anti-apoptotic abilities to many cancer cells. However, the role of resveratrol in YES-activated protein (YAP) expression and that of YAP in pancreatic cancer cells' response to gemcitabine resistance remain elusive. In this study, we found that resveratrol suppressed the proliferation and cloning ability and induced the apoptosis of pancreatic cancer cells...
September 23, 2016: Nutrients
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
#17
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/27504055/2-3-5-4-tetrahydroxystilbene-2-o-%C3%AE-glucoside-isolated-from-polygoni-multiflori-ameliorates-the-development-of-periodontitis
#18
Yu-Tang Chin, Meng-Ti Hsieh, Chi-Yu Lin, Po-Jan Kuo, Yu-Chen S H Yang, Ya-Jung Shih, Hsuan-Yu Lai, Guei-Yun Cheng, Heng-Yuan Tang, Chen-Chen Lee, Sheng-Yang Lee, Ching-Chiung Wang, Hung-Yun Lin, Earl Fu, Jacqueline Whang-Peng, Leroy F Liu
Periodontitis, a chronic infection by periodontopathic bacteria, induces uncontrolled inflammation, which leads to periodontal tissue destruction. 2,3,5,4'-Tetrahydroxystilbene-2-O-beta-glucoside (THSG), a polyphenol extracted from Polygoni Multiflori, reportedly has anti-inflammatory properties. In this study, we investigated the mechanisms of THSG on the Porphyromonas gingivalis-induced inflammatory responses in human gingival fibroblasts and animal modeling of ligature-induced periodontitis. Human gingival fibroblast cells were treated with lipopolysaccharide (LPS) extracted from P...
2016: Mediators of Inflammation
https://www.readbyqxmd.com/read/27494711/cilostazol-modulates-autophagic-degradation-of-%C3%AE-amyloid-peptide-via-sirt1-coupled-lkb1-ampk%C3%AE-signaling-in-neuronal-cells
#19
So Youn Park, Hye Rin Lee, Won Suk Lee, Hwa Kyoung Shin, Hye Young Kim, Ki Whan Hong, Chi Dae Kim
A neuroprotective role of autophagy mediates the degradation of β-amyloid peptide (Aβ) in Alzheimer's disease (AD). The previous study showed cilostazol modulates autophagy by increasing beclin1, Atg5 and LC3-II expressions, and depletes intracellular Aβ accumulation. This study elucidated the mechanisms through which cilostazol modulates the autophagic degradation of Aβ in neurons. In N2a cells, cilostazol (10-30 μM), significantly increased the expression of P-AMPKα (Thr 172) and downstream P-ACC (acetyl-CoA carboxylase) (Ser 79) as did resveratrol (SIRT1 activator), or AICAR (AMPK activator), which were blocked by KT5720, compound C (AMPK inhibitor), or sirtinol...
2016: PloS One
https://www.readbyqxmd.com/read/27488452/resveratrol-inhibits-renal-interstitial-fibrosis-in-diabetic-nephropathy-by-regulating-ampk-nox4-ros-pathway
#20
Ting He, Jiachuan Xiong, Ling Nie, Yanlin Yu, Xu Guan, Xinli Xu, Tangli Xiao, Ke Yang, Liang Liu, Daohai Zhang, Yunjian Huang, Jingbo Zhang, Junping Wang, Kumar Sharma, Jinghong Zhao
Renal interstitial fibrosis is a major pathologic feature of diabetic nephropathy, while the pathogenesis and therapeutic interventions of diabetic renal interstitial fibrosis are not well established. In this study, we first demonstrated that high glucose could induce renal fibroblast (NRK-49F) cell proliferation and activation to myofibroblasts, accompanied by a significant increase in the intracellular levels of reactive oxygen species (ROS) derived from nicotinamide adenine dinucleotide phosphate oxidase 4 (NOX4)...
December 2016: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
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