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Kujawowicz K, Mirończuk-Chodakowska I, Witkowska AM. Sirtuin 1 as a potential biomarker of undernutrition in the elderly: a narrative review. Crit Rev Food Sci Nutr 2024; 64:9532-9553. [PMID: 37229564 DOI: 10.1080/10408398.2023.2214208] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Undernutrition and inflammatory processes are predictors of early mortality in the elderly and require a rapid and accurate diagnosis. Currently, there are laboratory markers for assessing nutritional status, but new markers are still being sought. Recent studies suggest that sirtuin 1 (SIRT1) has the potential to be a marker for undernutrition. This article summarizes available studies on the association of SIRT1 and undernutrition in older people. Possible associations between SIRT1 and the aging process, inflammation, and undernutrition in the elderly have been described. The literature suggests that low SIRT1 levels in the blood of older people may not be associated with physiological aging processes, but with an increased risk of severe undernutrition associated with inflammation and systemic metabolic changes.
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Affiliation(s)
- Karolina Kujawowicz
- Department of Food Biotechnology, Medical University of Bialystok, Bialystok, Poland
| | | | - Anna Maria Witkowska
- Department of Food Biotechnology, Medical University of Bialystok, Bialystok, Poland
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2
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Jun L, Tao YX, Geetha T, Babu JR. Mitochondrial Adaptation in Skeletal Muscle: Impact of Obesity, Caloric Restriction, and Dietary Compounds. Curr Nutr Rep 2024; 13:500-515. [PMID: 38976215 PMCID: PMC11327216 DOI: 10.1007/s13668-024-00555-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/16/2024] [Indexed: 07/09/2024]
Abstract
PURPOSE OF REVIEW: The global obesity epidemic has become a major public health concern, necessitating comprehensive research into its adverse effects on various tissues within the human body. Among these tissues, skeletal muscle has gained attention due to its susceptibility to obesity-related alterations. Mitochondria are primary source of energy production in the skeletal muscle. Healthy skeletal muscle maintains constant mitochondrial content through continuous cycle of synthesis and degradation. However, obesity has been shown to disrupt this intricate balance. This review summarizes recent findings on the impact of obesity on skeletal muscle mitochondria structure and function. In addition, we summarize the molecular mechanism of mitochondrial quality control systems and how obesity impacts these systems. RECENT FINDINGS: Recent findings show various interventions aimed at mitigating mitochondrial dysfunction in obese model, encompassing strategies including caloric restriction and various dietary compounds. Obesity has deleterious effect on skeletal muscle mitochondria by disrupting mitochondrial biogenesis and dynamics. Caloric restriction, omega-3 fatty acids, resveratrol, and other dietary compounds enhance mitochondrial function and present promising therapeutic opportunities.
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Affiliation(s)
- Lauren Jun
- Department of Nutritional Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Ya-Xiong Tao
- Department of Anatomy Physiology and Pharmacology, Auburn University, Auburn, AL, 36849, USA
- Boshell Metabolic Diseases and Diabetes Program, Auburn University, Auburn, AL, 36849, USA
| | - Thangiah Geetha
- Department of Nutritional Sciences, Auburn University, Auburn, AL, 36849, USA
- Boshell Metabolic Diseases and Diabetes Program, Auburn University, Auburn, AL, 36849, USA
| | - Jeganathan Ramesh Babu
- Department of Nutritional Sciences, Auburn University, Auburn, AL, 36849, USA.
- Boshell Metabolic Diseases and Diabetes Program, Auburn University, Auburn, AL, 36849, USA.
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3
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Li X, Chen X, Gao X. Copper and cuproptosis: new therapeutic approaches for Alzheimer's disease. Front Aging Neurosci 2023; 15:1300405. [PMID: 38178962 PMCID: PMC10766373 DOI: 10.3389/fnagi.2023.1300405] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Accepted: 11/13/2023] [Indexed: 01/06/2024] Open
Abstract
Copper (Cu) plays a crucial role as a trace element in various physiological processes in humans. Nonetheless, free copper ions accumulate in the brain over time, resulting in a range of pathological changes. Compelling evidence indicates that excessive free copper deposition contributes to cognitive decline in individuals with Alzheimer's disease (AD). Free copper levels in the serum and brain of AD patients are notably elevated, leading to reduced antioxidant defenses and mitochondrial dysfunction. Moreover, free copper accumulation triggers a specific form of cell death, namely copper-dependent cell death (cuproptosis). This article aimed to review the correlation between copper dysregulation and the pathogenesis of AD, along with the primary pathways regulating copper homoeostasis and copper-induced death in AD. Additionally, the efficacy and safety of natural and synthetic agents, including copper chelators, lipid peroxidation inhibitors, and antioxidants, were examined. These treatments can restore copper equilibrium and prevent copper-induced cell death in AD cases. Another aim of this review was to highlight the significance of copper dysregulation and promote the development of pharmaceutical interventions to address it.
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Affiliation(s)
- Xiao Li
- Henan University of Chinese Medicine, Zhengzhou, Henan, China
| | - Xinwang Chen
- College of Acupuncture-Moxibustion and Tuina, Henan University of Chinese Medicine, Zhengzhou, Henan, China
- Acupuncture Clinic of the Third Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, Henan, China
| | - Xiyan Gao
- College of Acupuncture-Moxibustion and Tuina, Henan University of Chinese Medicine, Zhengzhou, Henan, China
- Acupuncture Clinic of the Third Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, Henan, China
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4
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Bahramzadeh A, Bolandnazar K, Meshkani R. Resveratrol as a potential protective compound against skeletal muscle insulin resistance. Heliyon 2023; 9:e21305. [PMID: 38027557 PMCID: PMC10660041 DOI: 10.1016/j.heliyon.2023.e21305] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 10/17/2023] [Accepted: 10/19/2023] [Indexed: 12/01/2023] Open
Abstract
The increasing prevalence of type 2 diabetes has become a major global problem. Insulin resistance has a central role in pathophysiology of type 2 diabetes. Skeletal muscle is responsible for the disposal of most of the glucose under conditions of insulin stimulation, and insulin resistance in skeletal muscle causes dysregulation of glucose homeostasis in the whole body. Despite the current pharmaceutical and non-pharmacological treatment strategies to combat diabetes, there is still a need for new therapeutic agents due to the limitations of the therapeutic agents. Meanwhile, plant polyphenols have attracted the attention of researchers for their use in the treatment of diabetes and have gained popularity. Resveratrol, a stilbenoid polyphenol, exists in various plant sources, and a growing body of evidence suggests its beneficial properties, including antidiabetic activities. The present review aimed to provide a summary of the role of resveratrol in insulin resistance in skeletal muscle and its related mechanisms. To achieve the objectives, by searching the PubMed, Scopus and Web of Science databases, we have summarized the results of all cell culture, animal, and human studies that have investigated the effects of resveratrol in different models on insulin resistance in skeletal muscle.
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Affiliation(s)
- Arash Bahramzadeh
- Department of Clinical Biochemistry, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Kosar Bolandnazar
- Department of Biological Sciences and Technology, Islamic Azad University of Mashhad, Mashhad, Iran
| | - Reza Meshkani
- Department of Clinical Biochemistry, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
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Ungurianu A, Zanfirescu A, Margină D. Sirtuins, resveratrol and the intertwining cellular pathways connecting them. Ageing Res Rev 2023; 88:101936. [PMID: 37116286 DOI: 10.1016/j.arr.2023.101936] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 04/06/2023] [Accepted: 04/17/2023] [Indexed: 04/30/2023]
Abstract
Sirtuins are a family of NAD+-dependent deacylases with numerous physiological and pathological implications, which lately became an attractive therapeutic target. Sirtuin-activating compounds (STACs) could be useful in disease prevention and treatment. Despite its bioavailability issues, resveratrol exerts a myriad of beneficial effects, known as the "resveratrol paradox". Modulation of sirtuins' expression and activity may, in fact, underlie many of resveratrol revered actions; however, the cellular pathways affected by modulating the activity of each sirtuin isoform, in different physio-pathological conditions, are not fully known. The purpose of this review was to summarize recent reports concerning the effects of resveratrol on the activity of sirtuins in different experimental settings, focusing on in vitro and in vivo preclinical studies. Most reports concern SIRT1, however recent studies dive into the effects initiated via other isoforms. Numerous cellular signaling pathways were reported to be modulated by resveratrol in a sirtuin-dependent manner (increased phosphorylation of MAPKs, AKT, AMPK, RhoA, BDNF, decreased activation of NLRP3 inflammasome, NF-κB, STAT3, upregulation of SIRT1/SREBP1c pathway, reduced β-amyloid via SIRT1-NF-κB-BACE1 signaling and counteracting mitochondrial damage by deacetylating PGC-1α). Thus, resveratrol may be the ideal candidate in the search for STACs as a tool for preventing and treating inflammatory and neurodegenerative diseases.
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Affiliation(s)
- Anca Ungurianu
- Carol Davila University of Medicine and Pharmacy, Faculty of Pharmacy, Department of Biochemistry, Traian Vuia 6, 020956 Bucharest, Romania
| | - Anca Zanfirescu
- Carol Davila University of Medicine and Pharmacy, Faculty of Pharmacy, Department of Pharmacology, Traian Vuia 6, 020956 Bucharest, Romania.
| | - Denisa Margină
- Carol Davila University of Medicine and Pharmacy, Faculty of Pharmacy, Department of Biochemistry, Traian Vuia 6, 020956 Bucharest, Romania
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Akgun-Unal N, Ozyildirim S, Unal O, Gulbahce-Mutlu E, Mogulkoc R, Baltaci AK. The effects of resveratrol and melatonin on biochemical and molecular parameters in diabetic old female rat hearts. Exp Gerontol 2023; 172:112043. [PMID: 36494013 DOI: 10.1016/j.exger.2022.112043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 11/30/2022] [Accepted: 12/01/2022] [Indexed: 12/12/2022]
Abstract
The roles of melatonin and resveratrol-enhanced activation of SIRT1 (silent information regulator 1), GLUT4 (glucose transporter type 4), and PGC-1α (peroxisome proliferator-activated receptor gamma coactivator 1-alpha) in mediating the protective effects on the heart in aged female rats with streptozotocin-induced diabetes were investigated. 16-month-old 48 Wistar female rats were separated into 8 groups with equal numbers. Group 1: Control, Group 2: Resveratrol Control, Group 3: Melatonin Control, Group 4: Resveratrol and Melatonin Control, Group 5: Diabetes, Group 6: Diabetes Resveratrol, Group 7: Diabetes Melatonin, Group 8: Diabetes Resveratrol and Melatonin. A single dose of 40 mg/kg intraperitoneal streptozotocin was injected into the rats of Groups 5, 6, 7, and 8 to induce experimental diabetes. Blood glucose levels were measured from the tail veins of the animals six days after the injections, using a diagnostic glucose kit. Rats with a blood glucose levels ≥300 mg/dl were considered diabetic. 5 mg/kg/day of resveratrol (intraperitoneal) and melatonin (subcutaneous) were administered for four weeks. At the end of the applications, SIRT1, GLUT4, PGC-1α gene expression as well as MDA and GSH levels in the heart tissues were determined by the PCR method from heart tissue samples taken under general anesthesia. The findings of our study show that suppressed antioxidant activity and decreased GLUT4, SIRT1, and PGC-1α gene expression in heart tissue can be reversed by the combination of resveratrol, melatonin, and resveratrol + melatonin in a diabetic aged female rat model. Resveratrol and melatonin supplementation may have a protective effect on cardiac functions in the diabetic aged female rat model.
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Affiliation(s)
- Nilufer Akgun-Unal
- Department of Biophysics, Medicine Faculty, Ondokuz Mayis University, Samsun, Turkey.
| | - Serhan Ozyildirim
- Department of Cardiology, Institution of Cardiology, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Omer Unal
- Department of Physiology, Medical Faculty, Kirikkale University, Kirikkale, Turkey
| | - Elif Gulbahce-Mutlu
- Department of Medical Biology, Medical Faculty, KTO Karatay University, Konya, Turkey
| | - Rasim Mogulkoc
- Department of Physiology, Medical Faculty, Selcuk University, Konya, Turkey
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Teng T, Qiu S, Zhao Y, Zhao S, Sun D, Hou L, Li Y, Zhou K, Yu X, Yang C, Li Y. Pathogenesis and Therapeutic Strategies Related to Non-Alcoholic Fatty Liver Disease. Int J Mol Sci 2022; 23:ijms23147841. [PMID: 35887189 PMCID: PMC9322253 DOI: 10.3390/ijms23147841] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Revised: 07/12/2022] [Accepted: 07/14/2022] [Indexed: 12/10/2022] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD), one of the most common types of chronic liver disease, is strongly correlated with obesity, insulin resistance, metabolic syndrome, and genetic components. The pathological progression of NAFLD, consisting of non-alcoholic fatty liver (NAFL), non-alcoholic steatohepatitis (NASH), and liver cirrhosis, is characterized by a broad spectrum of clinical phenotypes. Although patients with mild NAFL are considered to show no obvious clinical symptoms, patients with long-term NAFL may culminate in NASH and further liver fibrosis. Even though various drugs are able to improve NAFLD, there are no FDA-approved medications that directly treat NAFLD. In this paper, the pathogenesis of NAFLD, the potential therapeutic targets, and their underlying mechanisms of action were reviewed.
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Affiliation(s)
- Tieshan Teng
- Institute of Biomedical Informatics, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China; (T.T.); (S.Q.); (Y.Z.); (S.Z.); (D.S.); (L.H.); (Y.L.); (K.Z.); (X.Y.)
- School of Nursing and Health, Henan University, Kaifeng 475004, China
| | - Shuai Qiu
- Institute of Biomedical Informatics, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China; (T.T.); (S.Q.); (Y.Z.); (S.Z.); (D.S.); (L.H.); (Y.L.); (K.Z.); (X.Y.)
- School of Nursing and Health, Henan University, Kaifeng 475004, China
| | - Yiming Zhao
- Institute of Biomedical Informatics, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China; (T.T.); (S.Q.); (Y.Z.); (S.Z.); (D.S.); (L.H.); (Y.L.); (K.Z.); (X.Y.)
| | - Siyuan Zhao
- Institute of Biomedical Informatics, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China; (T.T.); (S.Q.); (Y.Z.); (S.Z.); (D.S.); (L.H.); (Y.L.); (K.Z.); (X.Y.)
| | - Dequan Sun
- Institute of Biomedical Informatics, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China; (T.T.); (S.Q.); (Y.Z.); (S.Z.); (D.S.); (L.H.); (Y.L.); (K.Z.); (X.Y.)
| | - Lingzhu Hou
- Institute of Biomedical Informatics, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China; (T.T.); (S.Q.); (Y.Z.); (S.Z.); (D.S.); (L.H.); (Y.L.); (K.Z.); (X.Y.)
| | - Yihang Li
- Institute of Biomedical Informatics, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China; (T.T.); (S.Q.); (Y.Z.); (S.Z.); (D.S.); (L.H.); (Y.L.); (K.Z.); (X.Y.)
| | - Ke Zhou
- Institute of Biomedical Informatics, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China; (T.T.); (S.Q.); (Y.Z.); (S.Z.); (D.S.); (L.H.); (Y.L.); (K.Z.); (X.Y.)
| | - Xixi Yu
- Institute of Biomedical Informatics, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China; (T.T.); (S.Q.); (Y.Z.); (S.Z.); (D.S.); (L.H.); (Y.L.); (K.Z.); (X.Y.)
| | - Changyong Yang
- Institute of Biomedical Informatics, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China; (T.T.); (S.Q.); (Y.Z.); (S.Z.); (D.S.); (L.H.); (Y.L.); (K.Z.); (X.Y.)
- School of Nursing and Health, Henan University, Kaifeng 475004, China
- Correspondence: or (C.Y.); (Y.L.)
| | - Yanzhang Li
- Institute of Biomedical Informatics, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China; (T.T.); (S.Q.); (Y.Z.); (S.Z.); (D.S.); (L.H.); (Y.L.); (K.Z.); (X.Y.)
- Correspondence: or (C.Y.); (Y.L.)
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8
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Bajes HR, Hakooz NM, Dardeer KT, Al-Dujaili EAS. The effect of endurance, resistance training, and supplements on mitochondria and bioenergetics of muscle cells. J Basic Clin Physiol Pharmacol 2021; 33:673-681. [PMID: 34687594 DOI: 10.1515/jbcpp-2021-0261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Accepted: 10/01/2021] [Indexed: 11/15/2022]
Abstract
Bioenergetics is the study of energy flow between biological systems and the surroundings and is measured quantitatively. Energy flow can be affected by many variables, including lifestyle and exercise, where exercise comes in different types; endurance and resistance training play significant roles in enhancing bioenergetics and promoting health. In addition, a supplementary diet supports recovery and energy production. This review aims to study the effect of endurance training, resistance training, and supplement intake on the muscle cell's bioenergetics. As a conclusion of the information presented in this mini-review, it was found that resistance, endurance training, and supplements can increase mitochondrial biogenesis, fat oxidation, myofibril synthesis, and increase VO2 max.
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Affiliation(s)
- Hana R Bajes
- Department of Science, Atlantic Cape Community College, Mays Landing, NJ, USA.,Department of Biological Sciences, Faculty of Science, The University of Jordan, Amman, Jordan
| | - Nancy M Hakooz
- Department of Biopharmaceutics and Clinical Pharmacy, School of Pharmacy, The University of Jordan, Amman, Jordan
| | | | - Emad A S Al-Dujaili
- Centre for Cardiovascular Science, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, Scotland
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Serrano A, Ribot J, Palou A, Bonet ML. Long-term programming of skeletal muscle and liver lipid and energy metabolism by resveratrol supplementation to suckling mice. J Nutr Biochem 2021; 95:108770. [PMID: 34000411 DOI: 10.1016/j.jnutbio.2021.108770] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 03/04/2021] [Accepted: 04/29/2021] [Indexed: 02/07/2023]
Abstract
Metabolic programming by dietary chemicals consumed in early life stages is receiving increasing attention. We here studied long-term effects of mild resveratrol (RSV) supplementation during lactation on muscular and hepatic lipid metabolism in adulthood. Newborn male mice received RSV or vehicle from day 2-20 of age, were weaned onto a chow diet on day 21, and were assigned to either a high-fat diet (HFD) or a normal-fat diet on day 90 of age for 10 weeks. RSV-treated mice showed in adulthood protection against HFD-induced triacylglycerol accumulation in skeletal muscle, enhanced muscular capacities for fat oxidation and mitochondria activity, signs of enhanced sirtuin 1 and AMP-dependent protein kinase signaling in muscle, and increased fat oxidation capacities and a decreased capacity for lipogenesis in liver compared with controls. Thus, RSV supplementation in early postnatal life may help preventing later diet-related disorders linked to ectopic lipid accumulation in muscle and liver tissues.
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Affiliation(s)
- Alba Serrano
- Grup de Recerca Nutrigenòmica i Obesitat, Laboratori de Biologia Molecular, Nutrició i Biotecnologia (LBNB), Universitat de les Illes Balears, Palma de Mallorca, Spain
| | - Joan Ribot
- Grup de Recerca Nutrigenòmica i Obesitat, Laboratori de Biologia Molecular, Nutrició i Biotecnologia (LBNB), Universitat de les Illes Balears, Palma de Mallorca, Spain; Institut d'Investigació Sanitària Illes Balears (IdISBa), Palma de Mallorca, Spain; CIBER de Fisiopatología de la Obesidad y Nutrición (CIBERobn), Palma de Mallorca, Spain.
| | - Andreu Palou
- Grup de Recerca Nutrigenòmica i Obesitat, Laboratori de Biologia Molecular, Nutrició i Biotecnologia (LBNB), Universitat de les Illes Balears, Palma de Mallorca, Spain; Institut d'Investigació Sanitària Illes Balears (IdISBa), Palma de Mallorca, Spain; CIBER de Fisiopatología de la Obesidad y Nutrición (CIBERobn), Palma de Mallorca, Spain
| | - M Luisa Bonet
- Grup de Recerca Nutrigenòmica i Obesitat, Laboratori de Biologia Molecular, Nutrició i Biotecnologia (LBNB), Universitat de les Illes Balears, Palma de Mallorca, Spain; Institut d'Investigació Sanitària Illes Balears (IdISBa), Palma de Mallorca, Spain; CIBER de Fisiopatología de la Obesidad y Nutrición (CIBERobn), Palma de Mallorca, Spain
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The Potential Role of Polyphenols in Modulating Mitochondrial Bioenergetics within the Skeletal Muscle: A Systematic Review of Preclinical Models. Molecules 2021; 26:molecules26092791. [PMID: 34068459 PMCID: PMC8125960 DOI: 10.3390/molecules26092791] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 04/09/2021] [Accepted: 04/11/2021] [Indexed: 12/19/2022] Open
Abstract
Polyphenols are naturally derived compounds that are increasingly being explored for their various health benefits. In fact, foods that are rich in polyphenols have become an attractive source of nutrition and a potential therapeutic strategy to alleviate the untoward effects of metabolic disorders. The last decade has seen a rapid increase in studies reporting on the bioactive properties of polyphenols against metabolic complications, especially in preclinical models. Various experimental models involving cell cultures exposed to lipid overload and rodents on high fat diet have been used to investigate the ameliorative effects of various polyphenols against metabolic anomalies. Here, we systematically searched and included literature reporting on the impact of polyphenols against metabolic function, particularly through the modulation of mitochondrial bioenergetics within the skeletal muscle. This is of interest since the skeletal muscle is rich in mitochondria and remains one of the main sites of energy homeostasis. Notably, increased substrate availability is consistent with impaired mitochondrial function and enhanced oxidative stress in preclinical models of metabolic disease. This explains the general interest in exploring the antioxidant properties of polyphenols and their ability to improve mitochondrial function. The current review aimed at understanding how these compounds modulate mitochondrial bioenergetics to improve metabolic function in preclinical models on metabolic disease.
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11
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Ajoolabady A, Aslkhodapasandhokmabad H, Aghanejad A, Zhang Y, Ren J. Mitophagy Receptors and Mediators: Therapeutic Targets in the Management of Cardiovascular Ageing. Ageing Res Rev 2020; 62:101129. [PMID: 32711157 DOI: 10.1016/j.arr.2020.101129] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Revised: 07/10/2020] [Accepted: 07/19/2020] [Indexed: 12/17/2022]
Abstract
Mitophagy serves as a cardinal regulator in the maintenance of mitochondrial integrity, function, and cardiovascular homeostasis, through the fine control and governance of cellular metabolism, ATP production, redox balance, and mitochondrial quality and quantity control. As a unique form of selective autophagy, mitophagy specifically recognizes and engulfs long-lived or damaged (depolarized) mitochondria through formation of the double-membraned intracellular organelles - mitophagosomes, ultimately resulting in lysosomal degradation. Levels of mitophagy are reported to be altered in pathological settings including cardiovascular diseases and biological ageing although the precise nature of mitophagy change in ageing and ageing-associated cardiovascular deterioration remains poorly defined. Ample clinical and experimental evidence has depicted a convincing tie between cardiovascular ageing and altered mitophagy. In particular, ageing perturbs multiple enigmatic various signal machineries governing mitophagy, mitochondrial quality, and mitochondrial function, contributing to ageing-elicited anomalies in the cardiovascular system. This review will update novel regulatory mechanisms of mitophagy especially in the perspective of advanced ageing, and discuss how mitophagy dysregulation may be linked to cardiovascular abnormalities in ageing. We hope to pave the way for development of new therapeutic strategies against the growing health and socieconomical issue of cardiovascular ageing through targeting mitophagy.
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Bai CH, Alizargar J, Peng CY, Wu JP. Combination of exercise training and resveratrol attenuates obese sarcopenia in skeletal muscle atrophy. CHINESE J PHYSIOL 2020; 63:101-112. [PMID: 32594063 DOI: 10.4103/cjp.cjp_95_19] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Obese sarcopenia is a progressive loss of skeletal muscle mass and strength with increases in adipocytes. The aim of this study was to investigate the effects of combination of exercise training and resveratrol on the pathological pathway from obesity to sarcopenia, and potential therapy for skeletal muscle declines in physical function. Two animal models were experimented: (1) C57BL/6J male mice were fed either a high-fat diet (HFD) for 8 weeks to induce obesity and resveratrol (low-, middle-, and high-dose) for 4 weeks. (2) senescence-accelerated mouse prone 8 (SAMP8) mice with sarcopenia were used. Skeletal muscle function of SAMP8 mice expressed an age-associated decline. In SAMP8 mice, resveratrol (150 mg/Kg BW, daily) was administered by oral gavage two times a week for 1 month of the experimental period. Exercise training based on adaptations in the muscle is training twice a week for 4 weeks. SAMP8 mouse skeletal muscle in each group was analyzed by H and E staining, transferase dUTP nick end labeling, and Western blot analysis. Mitochondrial function expression, apoptosis and relative hypertrophy signaling in HFD-induced obesity mice and SAMP8 mice were determined by Western blot analysis. Results of the present study indicate that effect of resveratrol on skeletal muscles of HFD-induced obesity mice is linked to an increase in Bcl-2 and phosphatidylinositol 3 kinase/AKT expressions. On the other hand, resveratrol, and its combination with exercise training, attenuate the aging-related mitochondrial dysfunction involving Bad, caspase 3, and interleukin-6 expressions in SAMP8 mice. Combination of exercise training and resveratrol induced hypertrophy in skeletal muscles of sarcopenia SAMP8 mice. Therefore, we suggest combination of exercise training and resveratrol as a therapeutic potential in obese sarcopenia.
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Affiliation(s)
- Chyi-Huey Bai
- Department of Public Health, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Javad Alizargar
- Research Center for Healthcare Industry Innovation, National Taipei University of Nursing and Health Sciences, Taipei, Taiwan
| | - Ching-Yi Peng
- Department of Gerontological Health Care, College of Nursing, National Taipei University of Nursing and Health Sciences, Taipei, Taiwan
| | - Jia-Ping Wu
- Research Center for Healthcare Industry Innovation, National Taipei University of Nursing and Health Sciences, Taipei, Taiwan
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13
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Effects of resveratrol on mitochondrial biogenesis and physiological diseases. ADVANCES IN TRADITIONAL MEDICINE 2020. [DOI: 10.1007/s13596-020-00492-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Surendran S, Sapkal R, Paul D, Nanjappan S. Effect of resveratrol on dipeptidyl peptidase-4 inhibitors pharmacokinetics: An in vitro and in vivo approach. Chem Biol Interact 2019; 315:108909. [PMID: 31786186 DOI: 10.1016/j.cbi.2019.108909] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 11/06/2019] [Accepted: 11/25/2019] [Indexed: 12/26/2022]
Abstract
Diabetes mellitus (DM) is a metabolic disorder with hyperglycemia being its hallmark symptom. The secondary symptom of DM is oxidative stress, which leads to the generation of free radicals. Diabetic nephropathy and neuropathy is the long-term effect of oxidative stress caused in DM, which leads to damage of kidneys and neurons respectively. Resveratrol (RES) is a phytochemical, found to be effective in the treatment of diabetic nephropathy and neuropathy. Due to its antioxidant property, it reduces the oxidative stress caused by DM. Dipeptidyl peptidase-4 (DPP-4) inhibitors are used for the treatment of type 2 DM. In vitro and in vivo data depicted that the metabolism of alogliptin (ALO), saxagliptin (SAX) and sitagliptin (SIT) were decreased in presence of RES while metabolism of teneligliptin (TEN) was not affected in presence of RES. The results show that the alteration of the pharmacokinetics of ALO, SAX and SIT was due to inhibition of CYP P450 by RES. Thus, there was a significant pharmacokinetic interaction between RES-ALO, RES-SAX and RES-SIT. Hence, a dose reduction is required when RES therapy is taken in combination with ALO, SAX and SIT as there is an increase in drug exposure, which might lead to toxicity.
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Affiliation(s)
- Shruti Surendran
- Drug Metabolism and Interactions Research Lab, Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Telangana, 500037, India
| | - Rekha Sapkal
- Drug Metabolism and Interactions Research Lab, Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Telangana, 500037, India
| | - David Paul
- Drug Metabolism and Interactions Research Lab, Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Telangana, 500037, India
| | - Satheeshkumar Nanjappan
- Drug Metabolism and Interactions Research Lab, Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Telangana, 500037, India.
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15
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Resveratrol-Loaded Solid Lipid Nanoparticle Supplementation Ameliorates Physical Fatigue by Improving Mitochondrial Quality Control. CRYSTALS 2019. [DOI: 10.3390/cryst9110559] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Resveratrol (RSV) has various pharmacological effects; however, few studies have directly addressed the possible antifatigue effects of long-term endurance exercise. The clinical use of RSV is limited by its poor water solubility and extremely short plasma half-life. Solid lipid nanoparticles (SLNs) are considered as reasonable drug delivery systems to overcome some of these drawbacks and expand its applications. In this study, RSV-SLNs were successfully prepared through emulsification and low-temperature solidification. Results showed that RSV-SLN supplementation effectively enhanced endurance performance. RSV-SLN supplementation might enhance mitochondrial function by ameliorating mitochondrial quality control (QC), which was superior to RSV application. These results revealed an unexpected role of RSV-SLN compared with RSV in terms of linking nutrient deprivation to mitochondrial oxidant production through mitochondrial QC. A mitochondrion-mediated pathway was likely involved in RSV-SLN, thereby improving endurance performance. Overall, this study highlighted new possibilities for anti-physical-fatigue strategies.
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16
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Silva JC, Jones JG. Improving Metabolic Control Through Functional Foods. Curr Med Chem 2019; 26:3424-3438. [DOI: 10.2174/0929867324666170523130123] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Revised: 05/05/2017] [Accepted: 05/05/2017] [Indexed: 12/23/2022]
Abstract
Background:
Functional foods are designed to have physiological benefits and reduce the
risk of chronic disease beyond basic nutritional functions. Conditions related to overnutrition such as
Metabolic Syndrome and Type 2 diabetes are increasingly serious concerns in Western societies. Several
nutrient classes are considered to protect against these conditions and this review focuses on the latest
clinical and preclinical evidence supporting their efficacy and the molecular mechanisms by which they
act.
Methods:
The review searched the literature for information and data on the following functional food
components and their protective effects against Metabolic Syndrome and Type 2 Diabetes: Dietary fiber;
Medium-chain triglycerides and Ketone esters; ω3 Polyunsaturated fatty acids and Antioxidants.
Results:
Data from a hundred and four studies were reviewed and summarized. They indicate that dietary
fiber results in the production of beneficial short chain fatty acids via intestinal microbiota, as well
as increasing intestinal secretion of incretins and satiety peptides. Medium chain triglycerides and ketone
esters promote thermogenesis, inhibit lipolysis and reduce inflammation. They also decrease endogenous
synthesis of triglycerides and fatty acids. ω3-PUFA’s act to soften inflammation through an
increase in adiponectin secretion. Antioxidants are involved in the protection of insulin sensitivity by
PTP1B suppression and SIRT1 activation.
Conclusion:
Functional foods have actions that complement and/or potentiate other lifestyle interventions
for reversing Metabolic Syndrome and Type 2 Diabetes. Functional foods contribute to reduced
food intake by promoting satiety, less weight gain via metabolic uncoupling and improved insulin sensitivity
via several distinct mechanisms.
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Affiliation(s)
- João C.P. Silva
- Center for Neurosciences and Cell Biology, UC Biotech, Cantanhede, Portugal
| | - John G. Jones
- Center for Neurosciences and Cell Biology, UC Biotech, Cantanhede, Portugal
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17
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Park SJ, Nam J, Ahn CW, Kim Y. Anti-diabetic properties of different fractions of Korean red ginseng. JOURNAL OF ETHNOPHARMACOLOGY 2019; 236:220-230. [PMID: 30849506 DOI: 10.1016/j.jep.2019.01.044] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2018] [Revised: 01/20/2019] [Accepted: 01/21/2019] [Indexed: 06/09/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Korean red ginseng (KRG) has been traditionally used to treat diabetes. Ginsenosides are considered as the major bioactive components mediating anti-diabetic effects of KRG. However, considering that ginsenosides account for only about 3-4% of ginsengs, other fractions of KRG may also carry potential anti-diabetic effects. There is no study reporting the differentiated effects of ginsenosides (Spn) and non-saponin fractions (NSpn) of KRG on glycemic control. AIM OF THE STUDY We investigated the effects of KRG, Spn, and NSpn on the indications of glycemic control and sought to elucidate physiological factors contributing their effects. MATERIALS AND METHODS Human T2DM mimicking Nagoya-Shibata-Yasuda (NSY/hos) mice were given KRG, Spn, or NSpn admixed in rodent diet at 200 mg/kg/day for 24 weeks. Glycemic and obesity indications, blood lipid profile, systematic and local oxidative stress markers in metabolically important organs, and systematic inflammatory markers were assessed. Molecular assessments associated with glycemic control in liver and skeletal muscle were further performed. RESULTS KRG attenuated deterioration in glucose homeostasis as evidenced by significantly lower fasting blood glucose from 22nd week and AUC during GTT at the end of the experiment compare to control. Spn enhanced insulin secretion in response to glucose stimulation and reduced protein level of glycogen phosphorylase in liver. On the other hand, NSpn ameliorated oxidative stress and inflammation. Some beneficial effects of Spn and NSpn were reflected in KRG treated mice. KRG also attenuated the accumulation of malondialdehyde in skeletal muscle and, accordingly, enhanced insulin responsiveness compare to control. CONCLUSION Anti-diabetic properties of KRG are not solely determined by the contents of ginsenosides but the harmonic functions of its different fractions.
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Affiliation(s)
- Soo Jeong Park
- Brain Korea 21 Plus Project for Medical Science, Yonsei University, 50-1 Yonsei-Ro Seodaemun-Gu, Seoul, 03722, Republic of Korea.
| | - Jisun Nam
- Severance Institute for Vascular and Metabolic Research, Yonsei University College of Medicine, 50-1 Yonsei-Ro Seodaemun-Gu, Seoul, 03722, Republic of Korea; Department of Internal Medicine, Yonsei University College of Medicine, 50-1 Yonsei-Ro Seodaemun-Gu, Seoul, 03722, Republic of Korea.
| | - Chul Woo Ahn
- Severance Institute for Vascular and Metabolic Research, Yonsei University College of Medicine, 50-1 Yonsei-Ro Seodaemun-Gu, Seoul, 03722, Republic of Korea; Department of Internal Medicine, Yonsei University College of Medicine, 50-1 Yonsei-Ro Seodaemun-Gu, Seoul, 03722, Republic of Korea.
| | - YuSik Kim
- Severance Institute for Vascular and Metabolic Research, Yonsei University College of Medicine, 50-1 Yonsei-Ro Seodaemun-Gu, Seoul, 03722, Republic of Korea.
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18
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Sergi D, Naumovski N, Heilbronn LK, Abeywardena M, O'Callaghan N, Lionetti L, Luscombe-Marsh N. Mitochondrial (Dys)function and Insulin Resistance: From Pathophysiological Molecular Mechanisms to the Impact of Diet. Front Physiol 2019; 10:532. [PMID: 31130874 PMCID: PMC6510277 DOI: 10.3389/fphys.2019.00532] [Citation(s) in RCA: 185] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Accepted: 04/15/2019] [Indexed: 12/17/2022] Open
Abstract
Mitochondrial dysfunction has been implicated in the pathogenesis of insulin resistance, the hallmark of type 2 diabetes mellitus (T2DM). However, the cause-effect relationship remains to be fully elucidated. Compelling evidence suggests that boosting mitochondrial function may represent a valuable therapeutic tool to improve insulin sensitivity. Mitochondria are highly dynamic organelles, which adapt to short- and long-term metabolic perturbations by undergoing fusion and fission cycles, spatial rearrangement of the electron transport chain complexes into supercomplexes and biogenesis governed by peroxisome proliferator-activated receptor γ co-activator 1α (PGC 1α). However, these processes appear to be dysregulated in type 2 diabetic individuals. Herein, we describe the mechanistic link between mitochondrial dysfunction and insulin resistance in skeletal muscle alongside the intracellular pathways orchestrating mitochondrial bioenergetics. We then review current evidence on nutritional tools, including fatty acids, amino acids, caloric restriction and food bioactive derivatives, which may enhance insulin sensitivity by therapeutically targeting mitochondrial function and biogenesis.
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Affiliation(s)
- Domenico Sergi
- Nutrition and Health Substantiation Group, Nutrition and Health Program, Health and Biosecurity, Commonwealth Scientific and Industrial Research Organisation (CSIRO), Adelaide, SA, Australia.,Adelaide Medical School, The University of Adelaide, Adelaide, SA, Australia
| | - Nenad Naumovski
- Faculty of Health, University of Canberra, Canberra, ACT, Australia.,Collaborative Research in Bioactives and Biomarkers (CRIBB) Group, Canberra, ACT, Australia
| | | | - Mahinda Abeywardena
- Nutrition and Health Substantiation Group, Nutrition and Health Program, Health and Biosecurity, Commonwealth Scientific and Industrial Research Organisation (CSIRO), Adelaide, SA, Australia
| | - Nathan O'Callaghan
- Nutrition and Health Substantiation Group, Nutrition and Health Program, Health and Biosecurity, Commonwealth Scientific and Industrial Research Organisation (CSIRO), Adelaide, SA, Australia
| | - Lillà Lionetti
- Department of Chemistry and Biology "A. Zambelli", University of Salerno, Fisciano, Italy
| | - Natalie Luscombe-Marsh
- Nutrition and Health Substantiation Group, Nutrition and Health Program, Health and Biosecurity, Commonwealth Scientific and Industrial Research Organisation (CSIRO), Adelaide, SA, Australia.,Adelaide Medical School, The University of Adelaide, Adelaide, SA, Australia
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19
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Do the Effects of Resveratrol on Thermogenic and Oxidative Capacities in IBAT and Skeletal Muscle Depend on Feeding Conditions? Nutrients 2018; 10:nu10101446. [PMID: 30301195 PMCID: PMC6213586 DOI: 10.3390/nu10101446] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Revised: 09/28/2018] [Accepted: 09/29/2018] [Indexed: 12/25/2022] Open
Abstract
The aim of this study was to compare the effects of mild energy restriction and resveratrol on thermogenic and oxidative capacity in interscapular brown adipose tissue (IBAT) and in skeletal muscle. Rats were fed a high-fat high-sucrose diet for six weeks, and divided into four experimental groups fed a standard diet: a control group, a resveratrol-treated group, an energy-restricted group and an energy-restricted group treated with resveratrol. Weights of IBAT, gastrocnemius muscle and fat depots were measured. Activities of carnitine palmitoyltransferase (CPT) and citrate synthase (CS), protein levels of sirtuin (SIRT1 and 3), uncoupling proteins (UCP1 and 3), glucose transporter (GLUT4), mitochondrial transcription factor (TFAM), nuclear respiratory factor (NRF1), peroxisome proliferator-activated receptor (PPARα) and AMP activated protein kinase (AMPK) and peroxisome proliferator-activated receptor gamma coactivator (PGC1α) activation were measured. No changes in IBAT and gastrocnemius weights were found. Energy-restriction, but not resveratrol, decreased the weights of adipose depots. In IBAT, resveratrol enhanced thermogenesis activating the SIRT1/PGC1α/PPARα axis. Resveratrol also induced fatty acid oxidation and glucose uptake. These effects were similar when resveratrol was combined with energy restriction. In the case of gastrocnemius muscle, the effects were not as clear as in the case of IBAT. In this tissue, resveratrol increased oxidative capacity. The combination of resveratrol and energy restriction seemingly did not improve the effects induced by the polyphenol alone.
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20
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Sun J, Zhang M, Chen K, Chen B, Zhao Y, Gong H, Zhao X, Qi R. Suppression of TLR4 activation by resveratrol is associated with STAT3 and Akt inhibition in oxidized low-density lipoprotein-activated platelets. Eur J Pharmacol 2018; 836:1-10. [DOI: 10.1016/j.ejphar.2018.08.014] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 08/08/2018] [Accepted: 08/10/2018] [Indexed: 12/17/2022]
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21
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Sun J, Zhang C, Kim M, Su Y, Qin L, Dong J, Zhou Y, Ding S. Early potential effects of resveratrol supplementation on skeletal muscle adaptation involved in exercise-induced weight loss in obese mice. BMB Rep 2018. [PMID: 29519293 PMCID: PMC5933216 DOI: 10.5483/bmbrep.2018.51.4.236] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Exercise and resveratrol supplementation exhibit anti-obesity functions in the long term but have not been fully investigated yet in terms of their early potential effectiveness. Mice fed with high-fat diet were categorized into control (Cont), exercise (Ex), resveratrol supplementation (Res), and exercise combined with resveratrol supplementation (Ex + Res) groups. In the four-week period of weight loss, exercise combined with resveratrol supplementation exerted no additional effects on body weight loss but significantly improved whole-body glucose and lipid homeostasis. The combined treatment significantly decreased intrahepatic lipid content but did not affect intramyocellular lipid content. Moreover, the treatment significantly increased the contents of mtDNA and cytochrome c, the expression levels of peroxisome proliferator-activated receptor gamma coactivator-1 alpha and its downstream transcription factors, and the activities of ATPase and citrate synthase. However, exercise, resveratrol, and their combination did not promote myofiber specification toward slow-twitch type. The effects of exercise combined with resveratrol supplementation on weight loss could be partly due to enhanced mitochondrial biogenesis and not to fiber-type shift in skeletal muscle tissues.
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Affiliation(s)
- Jingyu Sun
- Sports and Health Research Center, Tongji University Department of Physical Education, Shanghai 200092, China
| | - Chen Zhang
- Tongji University School of Medicine, Shanghai 200092, China
| | - MinJeong Kim
- Chung-Ang University College of Medicine, Seoul 06973, Korea
| | - Yajuan Su
- Tongji University School of Life Sciences and Technology, Shanghai 200092, China
| | - Lili Qin
- Sports and Health Research Center, Tongji University Department of Physical Education, Shanghai 200092, China
| | - Jingmei Dong
- Sports and Health Research Center, Tongji University Department of Physical Education, Shanghai 200092, China
| | - Yunhe Zhou
- Sports and Health Research Center, Tongji University Department of Physical Education, Shanghai 200092, China
| | - Shuzhe Ding
- Key Laboratory of Adolescent Health Assessment and Exercise Intervention, East China Normal University, Shanghai 200241, China
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22
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Ding S, Jiang J, Wang Z, Zhang G, Yin J, Wang X, Wang S, Yu Z. Resveratrol reduces the inflammatory response in adipose tissue and improves adipose insulin signaling in high-fat diet-fed mice. PeerJ 2018; 6:e5173. [PMID: 29967759 PMCID: PMC6027658 DOI: 10.7717/peerj.5173] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2018] [Accepted: 06/16/2018] [Indexed: 12/12/2022] Open
Abstract
Background Obesity-induced glucose metabolism disorder is associated with chronic, low-grade, systemic inflammation and is considered a risk factor for diabetes and metabolic syndrome. Resveratrol (RES), a natural anti-inflammatory compound, is observed to improve glucose tolerance and insulin sensitivity in obese rodents and humans. This study aimed to test the effects of RES administration on insulin signaling and the inflammatory response in visceral white adipose tissue (WAT) caused by a high-fat diet (HFD) in mice. Methods A total of 40 wild-type C57BL/6 male mice were divided into four groups (10 in each group): the standard chow diet (STD) group was fed a STD; the HFD group was fed a HFD; and the HFD-RES/L and HFD-RES/H groups were fed a HFD plus RES (200 and 400 mg/kg/day, respectively). The L and H in RES/L and RES/H stand for low and high, respectively. Glucose tolerance, insulin sensitivity, circulating inflammatory biomarkers and lipid profile were determined. Quantitative PCR and Western blot were used to determine the expression of CC-chemokine receptor 2 (CCR2), other inflammation markers, glucose transporter 4 (GLUT4), insulin receptor substrate 1 (IRS-1) and pAkt/Akt and to assess targets of interest involving glucose metabolism and inflammation in visceral WAT. Results HFD increased the levels of total cholesterol, triglycerides, low-density lipoprotein cholesterol and proinflammatory cytokines in serum, decreased the high-density lipoprotein cholesterol level in serum, and induced insulin resistance and WAT inflammation in mice. However, RES treatment alleviated insulin resistance, increased the expressions of pAkt, GLUT4 and IRS-1 in WAT, and decreased serum proinflammatory cytokine levels, macrophage infiltration and CCR2 expression in WAT. Conclusion Our results indicated that WAT CCR2 may play a vital role in macrophage infiltration and the inflammatory response during the development of insulin resistance in HFD-induced obesity. These data suggested that administration of RES offers protection against abnormal glucose metabolism and inflammatory adaptations in visceral WAT in mice with HFD-induced obesity.
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Affiliation(s)
- Shibin Ding
- School of Public Health, Xinxiang Medical University, Xinxiang, Henan, PR China.,Henan Collaborative Innovation Center of Molecular Diagnosis and Laboratory Medicine, Xinxiang Medical University, Xinxiang, Henan, PR China
| | - Jinjin Jiang
- School of Public Health, Capital Medical University, Beijing, PR China
| | - Zhe Wang
- School of Public Health, Xinxiang Medical University, Xinxiang, Henan, PR China
| | - Guofu Zhang
- School of Public Health, Xinxiang Medical University, Xinxiang, Henan, PR China
| | - Jianli Yin
- School of Public Health, Xinxiang Medical University, Xinxiang, Henan, PR China
| | - Xiaoya Wang
- School of Public Health, Xinxiang Medical University, Xinxiang, Henan, PR China
| | - Sui Wang
- School of Public Health, Xinxiang Medical University, Xinxiang, Henan, PR China
| | - Zengli Yu
- School of Public Health, Xinxiang Medical University, Xinxiang, Henan, PR China
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Fernández-Quintela A, Milton-Laskibar I, González M, Portillo MP. Antiobesity effects of resveratrol: which tissues are involved? Ann N Y Acad Sci 2017; 1403:118-131. [PMID: 28796895 DOI: 10.1111/nyas.13413] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Revised: 05/17/2017] [Accepted: 05/22/2017] [Indexed: 01/01/2023]
Abstract
The prevalence of obesity has been increasing in recent decades and is reaching epidemic proportions. The current options for overweight and obesity management are energy restriction and physical activity. However, compliance with these treatments is frequently poor and less successful than expected. Therefore, the scientific community is interested in active biomolecules, which may be useful in body weight management. Among them, resveratrol (3,5,4'-trihydroxy-trans-stilbene) has generated great interest as an antiobesity agent. The focus of this report is the mechanisms of action of resveratrol on several tissues (i.e., white and brown adipose tissues, liver, and skeletal muscle). Resveratrol blunts fat accumulation through decreasing adipogenesis and/or de novo lipogenesis in white adipose tissue. The effects on lipolysis are controversial. Regarding brown adipose tissue, resveratrol increases the capacity for adaptive thermogenesis. As far as liver and skeletal muscle is concerned, resveratrol increases lipid oxidation in both tissues. Therefore, in rodents, there is a general consensus concerning the effect of resveratrol on reducing body fat accumulation. By contrast, in humans, the studies are scarce, and no clear antiobesity action has been revealed so far.
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Affiliation(s)
- Alfredo Fernández-Quintela
- Nutrition and Obesity Group, Department of Nutrition and Food Science, Faculty of Pharmacy and Lucio Lascaray Research Center, University of the Basque Country (UPV/EHU), Vitoria, Spain.,CIBERobn Physiopathology of Obesity and Nutrition, Instituto de Salud Carlos III (ISCIII), Spain
| | - Iñaki Milton-Laskibar
- Nutrition and Obesity Group, Department of Nutrition and Food Science, Faculty of Pharmacy and Lucio Lascaray Research Center, University of the Basque Country (UPV/EHU), Vitoria, Spain.,CIBERobn Physiopathology of Obesity and Nutrition, Instituto de Salud Carlos III (ISCIII), Spain
| | - Marcela González
- Nutrition and Food Science Department, Faculty of Biochemistry and Biological Sciences, National University of Litoral and Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Santa Fe, Argentina
| | - Maria P Portillo
- Nutrition and Obesity Group, Department of Nutrition and Food Science, Faculty of Pharmacy and Lucio Lascaray Research Center, University of the Basque Country (UPV/EHU), Vitoria, Spain.,CIBERobn Physiopathology of Obesity and Nutrition, Instituto de Salud Carlos III (ISCIII), Spain
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24
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Liu T, Ma L, Zheng Z, Li F, Liu S, Xie Y, Li G. Resveratrol inhibits age-dependent spontaneous tumorigenesis by SIRT1-mediated post-translational modulations in the annual fish Nothobranchius guentheri. Oncotarget 2017; 8:55422-55434. [PMID: 28903430 PMCID: PMC5589669 DOI: 10.18632/oncotarget.19268] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Accepted: 06/20/2017] [Indexed: 12/31/2022] Open
Abstract
Resveratrol, SIRT1 activator, inhibits carcinogenesis predominantly performed in transgenic animal models, orthotopic cancers of nude mice or different cancer cell lines, but its effects during process of spontaneous tumors using vertebrate models remain untested. Spontaneous liver neoplasm is an age-related disease and is inhibited by resveratrol in the annual fish Nothobranchius guentheri, which indicates that the fish can act as an excellent model to study spontaneous tumorigenesis. Totally, 175 fish were fed with resveratrol and another 175 fish for controls. Treated fish were fed with resveratrol (25 μg/fish/day) from sexual maturity (4-month-old) until they were sacrificed at 6-, 9- and 12-month-old. Immunoblot, immunohistochemistry and co-immunoprecipitation were employed to investigate the underlying mechanisms that resveratrol inhibited age-dependent spontaneous tumorigenesis in the fish. Results showed that resveratrol increased protein level of SIRT1 and alleviated age-associated tumorigenesis in liver. With SIRT1 up-regulation, resveratrol reduced proliferation by deacetylating K-Ras and inactivating K-Ras/PI3K/AKT pathway; and promoted apoptosis through deacetylation and dephosphorylation of FoxOs, up-regulation of DLC1 and interaction between SIRT1 and DLC1, and dephosphorylation of DLC1 in spontaneous neoplasms. We established a novel short-lived fish model for understanding the molecular mechanisms of drugs on age-dependent spontaneous tumorigenesis.
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Affiliation(s)
- Tingting Liu
- Shandong Provincial Key Laboratory of Animal Resistance Biology, School of Life Sciences, Shandong Normal University, Jinan, China
| | - Long Ma
- Shandong Provincial Key Laboratory of Animal Resistance Biology, School of Life Sciences, Shandong Normal University, Jinan, China
| | - Zhaodi Zheng
- Shandong Provincial Key Laboratory of Animal Resistance Biology, School of Life Sciences, Shandong Normal University, Jinan, China
| | - Fenglin Li
- Shandong Provincial Key Laboratory of Animal Resistance Biology, School of Life Sciences, Shandong Normal University, Jinan, China
| | - Shan Liu
- Shandong Provincial Key Laboratory of Animal Resistance Biology, School of Life Sciences, Shandong Normal University, Jinan, China
| | - Yingbo Xie
- Shandong Provincial Key Laboratory of Animal Resistance Biology, School of Life Sciences, Shandong Normal University, Jinan, China
| | - Guorong Li
- Shandong Provincial Key Laboratory of Animal Resistance Biology, School of Life Sciences, Shandong Normal University, Jinan, China
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25
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Boulinguiez A, Staels B, Duez H, Lancel S. Mitochondria and endoplasmic reticulum: Targets for a better insulin sensitivity in skeletal muscle? Biochim Biophys Acta Mol Cell Biol Lipids 2017; 1862:901-916. [PMID: 28529179 DOI: 10.1016/j.bbalip.2017.05.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Revised: 05/15/2017] [Accepted: 05/17/2017] [Indexed: 12/16/2022]
Abstract
Obesity and its associated metabolic disorders represent a major health burden, with economic and social consequences. Although adapted lifestyle and bariatric surgery are effective in reducing body weight, obesity prevalence is still rising. Obese individuals often become insulin-resistant. Obesity impacts on insulin responsive organs, such as the liver, adipose tissue and skeletal muscle, and increases the risk of cardiovascular diseases, type 2 diabetes and cancer. In this review, we discuss the effects of obesity and insulin resistance on skeletal muscle, an important organ for the control of postprandial glucose. The roles of mitochondria and the endoplasmic reticulum in insulin signaling are highlighted and potential innovative research and treatment perspectives are proposed.
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Affiliation(s)
- Alexis Boulinguiez
- Univ. Lille, Inserm, CHU Lille, Institut Pasteur de Lille, U1011 - EGID, F-59000, Lille, France.
| | - Bart Staels
- Univ. Lille, Inserm, CHU Lille, Institut Pasteur de Lille, U1011 - EGID, F-59000, Lille, France.
| | - Hélène Duez
- Univ. Lille, Inserm, CHU Lille, Institut Pasteur de Lille, U1011 - EGID, F-59000, Lille, France.
| | - Steve Lancel
- Univ. Lille, Inserm, CHU Lille, Institut Pasteur de Lille, U1011 - EGID, F-59000, Lille, France.
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26
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Qiao Y, Gao K, Wang Y, Wang X, Cui B. Resveratrol ameliorates diabetic nephropathy in rats through negative regulation of the p38 MAPK/TGF-β1 pathway. Exp Ther Med 2017; 13:3223-3230. [PMID: 28588674 PMCID: PMC5450784 DOI: 10.3892/etm.2017.4420] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Accepted: 01/20/2017] [Indexed: 12/25/2022] Open
Abstract
Resveratrol (RSV) has been shown to have a renoprotective effect against diabetic nephropathy, but the underlying mechanisms of this have not been fully elucidated. The aim of the current study was to explore the mechanisms responsible for the therapeutic effects of RSV in rat mesangial cells in vitro and in a rat model of diabetic nephropathy. The viability of CRL-2573 rat mesangial cells and their expression levels of p38, phosphorylated (p)-p38, transforming growth factor beta 1 (TGF-β1) and fibronectin were assessed in response to treatment with high glucose, with or without RSV. Diabetic nephropathy was also induced in Sprague-Dawley rats by streptozotocin treatment. At 8 weeks, basic biochemical parameters and histopathological abnormalities as well as the expression of p38, p-p38, TGF-β1 and fibronectin in rat kidneys were compared between control diabetic rats and those treated with 20 mg/kg RSV daily for 4 weeks. In the mesangial cell line, RSV inhibited high glucose-induced increases in cell viability and fibronectin expression by significantly reducing p38 mitogen-activated protein kinase (MAPK) activation and TGF-β1 expression (P<0.05). In diabetic rats, RSV significantly decreased blood glucose, serum creatinine and urinary albumin levels, as well as the kidney weight and ratio of kidney weight/body weight compared with the control group (P<0.05). Moreover, RSV ameliorated renal histological changes and downregulated the expression of p-p38, TGF-β1 and fibronectin in the kidneys of diabetic rats. These data suggested that RSV protected renal tissue from diabetes-induced injury and that this activity may be via inhibition of the p38 MAPK/TGF-β1 signaling pathway.
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Affiliation(s)
- Yuan Qiao
- Department of Endocrinology, Shaanxi Provincial Hospital, Xi'an, Shaanxi 710068, P.R. China
| | - Ke Gao
- Department of Neurosurgery, The First Affiliated Hospital of Xi'an Jiaotong University School of Medicine, Xi'an, Shaanxi 710061, P.R. China
| | - Yangwei Wang
- Department of Endocrinology, Shaanxi Provincial Hospital, Xi'an, Shaanxi 710068, P.R. China
| | - Xueliang Wang
- Department of Public Health, College of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Bo Cui
- Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University School of Medicine, Xi'an, Shaanxi 710061, P.R. China
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Yang L, Zhang Y, Zhu M, Zhang Q, Wang X, Wang Y, Zhang J, Li J, Yang L, Liu J, Liu F, Yang Y, Kang L, Shen Y, Qi Z. Resveratrol attenuates myocardial ischemia/reperfusion injury through up-regulation of vascular endothelial growth factor B. Free Radic Biol Med 2016; 101:1-9. [PMID: 27667182 DOI: 10.1016/j.freeradbiomed.2016.09.016] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Revised: 08/07/2016] [Accepted: 09/20/2016] [Indexed: 12/11/2022]
Abstract
The objective was to examine the protective effect of resveratrol (RSV) on myocardial ischemia/reperfusion (IR) injury and whether the mechanism was related to vascular endothelial growth factor B (VEGF-B) signaling pathway. Rat hearts were isolated for Langendorff perfusion test and H9c2 cells were used for in vitro assessments. RSV treatment significantly improved left ventricular function, inhibited CK-MB release, and reduced infarct size in comparison with IR group ex vivo. RSV treatment markedly decreased cell death and apoptosis of H9c2 cells during IR. We found that RSV was responsible for the up-regulation of VEGF-B mRNA and protein level, which caused the activation of Akt and the inhibition of GSK3β. Additionally, RSV prevented the generation of reactive oxygen species (ROS) by up-regulating the expression of MnSOD either in vitro or ex vivo. We also found that the inhibition of VEGF-B abolished the cardioprotective effect of RSV, increased apoptosis, and led to the down-regulation of phosphorylated Akt, GSK3β, and MnSOD in H9c2 cells. These results demonstrated that RSV was able to attenuate myocardial IR injury via promotion of VEGF-B/antioxidant signaling pathway. Therefore, the up-regulation of VEGF-B can be a promising modality for clinical myocardial IR injury therapy.
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MESH Headings
- Animals
- Antioxidants/pharmacology
- Apoptosis/drug effects
- Cardiotonic Agents/pharmacology
- Cell Line
- Creatine Kinase, MB Form/antagonists & inhibitors
- Creatine Kinase, MB Form/metabolism
- Gene Expression Regulation
- Glycogen Synthase Kinase 3 beta/antagonists & inhibitors
- Glycogen Synthase Kinase 3 beta/genetics
- Glycogen Synthase Kinase 3 beta/metabolism
- Male
- Myocardial Infarction/drug therapy
- Myocardial Infarction/genetics
- Myocardial Infarction/metabolism
- Myocardial Infarction/pathology
- Myocardial Reperfusion Injury/drug therapy
- Myocardial Reperfusion Injury/genetics
- Myocardial Reperfusion Injury/metabolism
- Myocardial Reperfusion Injury/pathology
- Myocardium/metabolism
- Myocardium/pathology
- Myocytes, Cardiac/drug effects
- Myocytes, Cardiac/metabolism
- Myocytes, Cardiac/pathology
- Organ Culture Techniques
- Proto-Oncogene Proteins c-akt/agonists
- Proto-Oncogene Proteins c-akt/genetics
- Proto-Oncogene Proteins c-akt/metabolism
- RNA, Small Interfering/genetics
- RNA, Small Interfering/metabolism
- Rats
- Rats, Sprague-Dawley
- Reactive Oxygen Species/antagonists & inhibitors
- Reactive Oxygen Species/metabolism
- Resveratrol
- Signal Transduction
- Stilbenes/pharmacology
- Superoxide Dismutase/genetics
- Superoxide Dismutase/metabolism
- Vascular Endothelial Growth Factor B/agonists
- Vascular Endothelial Growth Factor B/antagonists & inhibitors
- Vascular Endothelial Growth Factor B/genetics
- Vascular Endothelial Growth Factor B/metabolism
- Ventricular Function, Left/drug effects
- Ventricular Function, Left/physiology
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Affiliation(s)
- Lei Yang
- Department of Histology and Embryology, School of Medicine, Nankai University, Tianjin 300071, China; Tianjin Institute of Acute Abdominal Diseases of Integrated Traditional Chinese and Western Medicine, Tianjin Nankai Hospital, Tianjin 300100, China
| | - Yan Zhang
- Department of Histology and Embryology, School of Medicine, Nankai University, Tianjin 300071, China
| | - Mengmeng Zhu
- Department of Histology and Embryology, School of Medicine, Nankai University, Tianjin 300071, China
| | - Qiong Zhang
- Department of Microbiology, School of Laboratory Medicine, Tianjin Medical University, Tianjin 300203, China
| | - Xiaoling Wang
- Department of Histology and Embryology, School of Medicine, Nankai University, Tianjin 300071, China
| | - Yanjiao Wang
- Department of Histology and Embryology, School of Medicine, Nankai University, Tianjin 300071, China
| | - Jincai Zhang
- Department of Histology and Embryology, School of Medicine, Nankai University, Tianjin 300071, China
| | - Jing Li
- Department of Histology and Embryology, School of Medicine, Nankai University, Tianjin 300071, China
| | - Liang Yang
- Department of Histology and Embryology, School of Medicine, Nankai University, Tianjin 300071, China
| | - Jie Liu
- Department of Histology and Embryology, School of Medicine, Nankai University, Tianjin 300071, China
| | - Fei Liu
- Department of Histology and Embryology, School of Medicine, Nankai University, Tianjin 300071, China
| | - Yinan Yang
- Department of Histology and Embryology, School of Medicine, Nankai University, Tianjin 300071, China
| | - Licheng Kang
- Department of Histology and Embryology, School of Medicine, Nankai University, Tianjin 300071, China
| | - Yanna Shen
- Department of Microbiology, School of Laboratory Medicine, Tianjin Medical University, Tianjin 300203, China.
| | - Zhi Qi
- Department of Histology and Embryology, School of Medicine, Nankai University, Tianjin 300071, China.
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Li YC, Liu YM, Shen JD, Chen JJ, Pei YY, Fang XY. Resveratrol Ameliorates the Depressive-Like Behaviors and Metabolic Abnormalities Induced by Chronic Corticosterone Injection. Molecules 2016; 21:molecules21101341. [PMID: 27754387 PMCID: PMC6274283 DOI: 10.3390/molecules21101341] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Revised: 09/24/2016] [Accepted: 10/06/2016] [Indexed: 12/17/2022] Open
Abstract
Chronic glucocorticoid exposure is known to cause depression and metabolic disorders. It is critical to improve abnormal metabolic status as well as depressive-like behaviors in patients with long-term glucocorticoid therapy. This study aimed to investigate the effects of resveratrol on the depressive-like behaviors and metabolic abnormalities induced by chronic corticosterone injection. Male ICR mice were administrated corticosterone (40 mg/kg) by subcutaneous injection for three weeks. Resveratrol (50 and 100 mg/kg), fluoxetine (20 mg/kg) and pioglitazone (10 mg/kg) were given by oral gavage 30 min prior to corticosterone administration. The behavioral tests showed that resveratrol significantly reversed the depressive-like behaviors induced by corticosterone, including the reduced sucrose preference and increased immobility time in the forced swimming test. Moreover, resveratrol also increased the secretion of insulin, reduced serum level of glucose and improved blood lipid profiles in corticosterone-treated mice without affecting normal mice. However, fluoxetine only reverse depressive-like behaviors, and pioglitazone only prevent the dyslipidemia induced by corticosterone. Furthermore, resveratrol and pioglitazone decreased serum level of glucagon and corticosterone. The present results indicated that resveratrol can ameliorate depressive-like behaviors and metabolic abnormalities induced by corticosterone, which suggested that the multiple effects of resveratrol could be beneficial for patients with depression and/or metabolic syndrome associated with long-term glucocorticoid therapy.
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Affiliation(s)
- Yu-Cheng Li
- College of Pharmacy, Henan University of Traditional Chinese Medicine, Zhengzhou 450046, China.
| | - Ya-Min Liu
- College of Pharmacy, Henan University of Traditional Chinese Medicine, Zhengzhou 450046, China.
| | - Ji-Duo Shen
- College of Pharmacy, Henan University of Traditional Chinese Medicine, Zhengzhou 450046, China.
| | - Jun-Jie Chen
- College of Pharmacy, Henan University of Traditional Chinese Medicine, Zhengzhou 450046, China.
| | - Yang-Yi Pei
- College of Pharmacy, Henan University of Traditional Chinese Medicine, Zhengzhou 450046, China.
| | - Xiao-Yan Fang
- College of Pharmacy, Henan University of Traditional Chinese Medicine, Zhengzhou 450046, China.
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29
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Bonnefont-Rousselot D. Resveratrol and Cardiovascular Diseases. Nutrients 2016; 8:nu8050250. [PMID: 27144581 PMCID: PMC4882663 DOI: 10.3390/nu8050250] [Citation(s) in RCA: 275] [Impact Index Per Article: 34.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2016] [Revised: 04/10/2016] [Accepted: 04/20/2016] [Indexed: 02/06/2023] Open
Abstract
The increased incidence of cardiovascular diseases (CVDs) has stimulated research for substances that could improve cardiovascular health. Among them, resveratrol (RES), a polyphenolic compound notably present in grapes and red wine, has been involved in the “French paradox”. RES is known for its antioxidant and anti-inflammatory properties and for its ability to upregulate endothelial NO synthase (eNOS). RES was able to scavenge •OH/O2•− and peroxyl radicals, which can limit the lipid peroxidation processes. Moreover, in bovine aortic endothelial cells (BAEC) under glucose-induced oxidative stress, RES restored the activity of dimethylargininedimethylaminohydrolase (DDAH), an enzyme that degrades an endogenous inhibitor of eNOS named asymmetric dimethylarginine (ADMA). Thus, RES could improve •NO availability and decrease the endothelial dysfunction observed in diabetes. Preclinical studies have made it possible to identify molecular targets (SIRT-1, AMPK, Nrf2, NFκB…); however, there are limited human clinical trials, and difficulties in the interpretation of results arise from the use of high-dose RES supplements in research studies, whereas low RES concentrations are present in red wine. The discussions on potential beneficial effects of RES in CVDs (atherosclerosis, hypertension, stroke, myocardial infarction, heart failure) should compare the results of preclinical studies with those of clinical trials.
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Affiliation(s)
- Dominique Bonnefont-Rousselot
- Department of Biochemistry, Faculty of Pharmacy, Paris Descartes University, Sorbonne Paris Cité, Paris 75006, France.
- Department of Metabolic Biochemistry, Pitié-Salpêtrière-Charles Foix Hospital (AP-HP), Paris 75013, France.
- Inserm UMR_S 1166 ICAN, UPMC, La Pitié Hospital, Paris 75013, France.
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30
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Abstract
Resveratrol, a natural polyphenol found in grapes, berries, and medicinal plants, exhibits antioxidant and anti-inflammatory activities and has been proposed to be a longevity-prolonging agent. There is also growing evidence that resveratrol has cardioprotective properties and beneficial effects on both glucose and lipid metabolism. Recently, several studies have examined the use of resveratrol as a therapeutic agent to treat numerous pathological and metabolic disorders. Herein, we present insights into the mechanisms of action, biological effects, and current evidence of actions of resveratrol on the ovary. In vitro, resveratrol inhibits proliferation and androgen production by theca-interstitial cells. Resveratrol also exerts a cytostatic, but not cytotoxic, effect on granulosa cells, while decreasing aromatization and vascular endothelial growth factor expression. In vivo, resveratrol treatment reduced the size of adipocytes and improved estrus cyclicity in the previously acyclic rat model of polycystic ovary syndrome (PCOS). In addition, resveratrol increased the ovarian follicular reserve and prolonged the ovarian life span in rats. Taken together, resveratrol emerges as a potential therapeutic agent to treat conditions associated with androgen excess, such as PCOS. The efficacy of resveratrol in the treatment of gynecological conditions requires further investigation.
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Affiliation(s)
| | - Antoni J Duleba
- Department of Reproductive Medicine, University of California, San Diego, San Diego, California
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31
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The Role of Mitochondrial DNA in Mediating Alveolar Epithelial Cell Apoptosis and Pulmonary Fibrosis. Int J Mol Sci 2015; 16:21486-519. [PMID: 26370974 PMCID: PMC4613264 DOI: 10.3390/ijms160921486] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2015] [Revised: 07/29/2015] [Accepted: 08/26/2015] [Indexed: 12/17/2022] Open
Abstract
Convincing evidence has emerged demonstrating that impairment of mitochondrial function is critically important in regulating alveolar epithelial cell (AEC) programmed cell death (apoptosis) that may contribute to aging-related lung diseases, such as idiopathic pulmonary fibrosis (IPF) and asbestosis (pulmonary fibrosis following asbestos exposure). The mammalian mitochondrial DNA (mtDNA) encodes for 13 proteins, including several essential for oxidative phosphorylation. We review the evidence implicating that oxidative stress-induced mtDNA damage promotes AEC apoptosis and pulmonary fibrosis. We focus on the emerging role for AEC mtDNA damage repair by 8-oxoguanine DNA glycosylase (OGG1) and mitochondrial aconitase (ACO-2) in maintaining mtDNA integrity which is important in preventing AEC apoptosis and asbestos-induced pulmonary fibrosis in a murine model. We then review recent studies linking the sirtuin (SIRT) family members, especially SIRT3, to mitochondrial integrity and mtDNA damage repair and aging. We present a conceptual model of how SIRTs modulate reactive oxygen species (ROS)-driven mitochondrial metabolism that may be important for their tumor suppressor function. The emerging insights into the pathobiology underlying AEC mtDNA damage and apoptosis is suggesting novel therapeutic targets that may prove useful for the management of age-related diseases, including pulmonary fibrosis and lung cancer.
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32
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Ramis MR, Esteban S, Miralles A, Tan DX, Reiter RJ. Caloric restriction, resveratrol and melatonin: Role of SIRT1 and implications for aging and related-diseases. Mech Ageing Dev 2015; 146-148:28-41. [PMID: 25824609 DOI: 10.1016/j.mad.2015.03.008] [Citation(s) in RCA: 108] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Revised: 03/24/2015] [Accepted: 03/25/2015] [Indexed: 12/11/2022]
Abstract
Aging is an inevitable and multifactorial biological process. Free radicals have been implicated in aging processes; it is hypothesized that they cause cumulative oxidative damage to crucial macromolecules and are responsible for failure of multiple physiological mechanisms. However, recent investigations have also suggested that free radicals can act as modulators of several signaling pathways such as those related to sirtuins. Caloric restriction is a non-genetic manipulation that extends lifespan of several species and improves healthspan; the belief that many of these benefits are due to the induction of sirtuins has led to the search for sirtuin activators, especially sirtuin 1, the most studied. Resveratrol, a polyphenol found in red grapes, was first known for its antioxidant and antifungal properties, and subsequently has been reported several biological effects, including the activation of sirtuins. Endogenously-produced melatonin, a powerful free radical scavenger, declines with age and its loss contributes to degenerative conditions of aging. Recently, it was reported that melatonin also activates sirtuins, in addition to other functions, such as regulator of circadian rhythms or anti-inflammatory properties. The fact that melatonin and resveratrol are present in various foods, exhibiting possible synergistic effects, suggests the use of dietary ingredients to promote health and longevity.
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Affiliation(s)
- Margarita R Ramis
- Laboratory of Neurophysiology, Department of Biology, University of the Balearic Islands, Palma, Spain.
| | - Susana Esteban
- Laboratory of Neurophysiology, Department of Biology, University of the Balearic Islands, Palma, Spain.
| | - Antonio Miralles
- Laboratory of Neurophysiology, Department of Biology, University of the Balearic Islands, Palma, Spain.
| | - Dun-Xian Tan
- Department of Cellular and Structural Biology, University of Texas Health Science Center, San Antonio, TX, USA.
| | - Russel J Reiter
- Department of Cellular and Structural Biology, University of Texas Health Science Center, San Antonio, TX, USA.
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