1
|
Bouyahya A, Balahbib A, Khalid A, Makeen HA, Alhazmi HA, Albratty M, Hermansyah A, Ming LC, Goh KW, El Omari N. Clinical applications and mechanism insights of natural flavonoids against type 2 diabetes mellitus. Heliyon 2024; 10:e29718. [PMID: 38694079 PMCID: PMC11061711 DOI: 10.1016/j.heliyon.2024.e29718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 04/03/2024] [Accepted: 04/14/2024] [Indexed: 05/03/2024] Open
Abstract
Diabetes is a complex disease that affects a large percentage of the world's population, and it is associated with several risk factors. Self-management poses a significant challenge, but natural sources have shown great potential in providing effective glucose reducing solutions. Flavonoids, a class of bioactive substances found in different natural sources including medicinal plants, have emerged as promising candidates in this regard. Indeed, several flavonoids, including apigenin, arbutin, catechins, and cyanidin, have demonstrated remarkable anti-diabetic properties. The clinical effectiveness of these flavonoids is linked to their potential to decrease blood glucose concentration and increase insulin concentration. Thus, the regulation of certain metabolic pathways such as glycolysis and neoglycogenesis has also been demonstrated. In vitro and in vivo investigations revealed different mechanisms of action related to flavonoid compounds at subcellular, cellular, and molecular levels. The main actions reside in the activation of glycolytic signaling pathways and the inhibition of signaling that promotes glucose synthesis and storage. In this review, we highlight the clinical efficiency of natural flavonoids as well as the molecular mechanisms underlying this effectiveness.
Collapse
Affiliation(s)
- Abdelhakim Bouyahya
- Laboratory of Human Pathologies Biology, Department of Biology, Faculty of Sciences, Mohammed V University in Rabat, Rabat 10106, Morocco
- Department of Pharmacy Practice, Faculty of Pharmacy, Universitas Airlangga, 60115 Surabaya, Indonesia
| | - Abdelaali Balahbib
- High Institute of Nursing Professions and Health Techniques of Errachidia, Errachidia, Morocco
| | - Asaad Khalid
- Substance Abuse and Toxicology Research Center, Jazan University, P.O. Box: 114, Jazan, Saudi Arabia
- Medicinal and Aromatic Plants Research Institute, National Center for Research, P.O. Box: 2424, Khartoum-11111, Sudan
| | - Hafiz A. Makeen
- Pharmacy Practice Research Unit, Clinical Pharmacy Department, Faculty of Pharmacy, Jazan University, Jazan, Saudi Arabia
| | - Hassan A. Alhazmi
- Substance Abuse and Toxicology Research Center, Jazan University, P.O. Box: 114, Jazan, Saudi Arabia
- Department of Pharmaceutical Chemistry and Pharmacognosy, College of Pharmacy, Jazan University, P.O. Box 114, Postal Code 45142, Jazan, Saudi Arabia
| | - Mohammed Albratty
- Department of Pharmaceutical Chemistry and Pharmacognosy, College of Pharmacy, Jazan University, P.O. Box 114, Postal Code 45142, Jazan, Saudi Arabia
| | - Andi Hermansyah
- Department of Pharmacy Practice, Faculty of Pharmacy, Universitas Airlangga, 60115 Surabaya, Indonesia
| | - Long Chiau Ming
- Department of Pharmacy Practice, Faculty of Pharmacy, Universitas Airlangga, 60115 Surabaya, Indonesia
- School of Medical and Life Sciences, Sunway University, Sunway City 47500, Malaysia
- PAPRSB Institute of Health Sciences, Universiti Brunei Darussalam, Gadong, Brunei Darussalam
| | - Khang Wen Goh
- Faculty of Data Science and Information Technology, INTI International University, Nilai, Malaysia
| | - Nasreddine El Omari
- High Institute of Nursing Professions and Health Techniques of Tetouan, Tetouan, Morocco
| |
Collapse
|
2
|
Feng Y, Ren Y, Zhang X, Yang S, Jiao Q, Li Q, Jiang W. Metabolites of traditional Chinese medicine targeting PI3K/AKT signaling pathway for hypoglycemic effect in type 2 diabetes. Front Pharmacol 2024; 15:1373711. [PMID: 38799166 PMCID: PMC11116707 DOI: 10.3389/fphar.2024.1373711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Accepted: 04/23/2024] [Indexed: 05/29/2024] Open
Abstract
Type 2 diabetes mellitus is a chronic metabolic disease characterized by insulin resistance, with high morbidity and mortality worldwide. Due to the tightly intertwined connection between the insulin resistance pathway and the PI3K/AKT signaling pathway, regulating the PI3K/AKT pathway and its associated targets is essential for hypoglycemia and the prevention of type 2 diabetes mellitus. In recent years, metabolites isolated from traditional Chinese medicine has received more attention and acceptance for its superior bioactivity, high safety, and fewer side effects. Meanwhile, numerous in vivo and in vitro studies have revealed that the metabolites present in traditional Chinese medicine possess better bioactivities in regulating the balance of glucose metabolism, ameliorating insulin resistance, and preventing type 2 diabetes mellitus via the PI3K/AKT signaling pathway. In this article, we reviewed the literature related to the metabolites of traditional Chinese medicine improving IR and possessing therapeutic potential for type 2 diabetes mellitus by targeting the PI3K/AKT signaling pathway, focusing on the hypoglycemic mechanism of the metabolites of traditional Chinese medicine in type 2 diabetes mellitus and elaborating on the significant role of the PI3K/AKT signaling pathway in type 2 diabetes mellitus. In order to provide reference for clinical prevention and treatment of type 2 diabetes mellitus.
Collapse
Affiliation(s)
| | | | | | | | | | | | - Wenwen Jiang
- School of Pharmaceutical Sciences, Guizhou University, Guiyang, China
| |
Collapse
|
3
|
Chapple B, Woodfin S, Moore W. The Perfect Cup? Coffee-Derived Polyphenols and Their Roles in Mitigating Factors Affecting Type 2 Diabetes Pathogenesis. Molecules 2024; 29:751. [PMID: 38398503 PMCID: PMC10891742 DOI: 10.3390/molecules29040751] [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] [Received: 01/10/2024] [Revised: 01/29/2024] [Accepted: 02/02/2024] [Indexed: 02/25/2024] Open
Abstract
Type 2 diabetes (T2D) is a growing health concern with an estimated 462 million people having been diagnosed worldwide. T2D is characterized by chronically elevated blood glucose and insulin resistance, which culminate in a diminished function of the β-cell mass in its later stages. This can be perpetuated by and result in inflammation, excess reactive oxygen species production, obesity, and the dysregulation of multiple cellular pathways. Many naturally occurring small molecules have been investigated in terms of their roles in modulating glucose homeostasis and β-cell function. Many of these compounds can be found in commonly used sources of food and drink. Interestingly, a correlation has been observed between coffee consumption and T2D incidence. However, the specific compounds responsible for this correlation and their mechanisms are still somewhat undetermined. This paper reviews recent research findings on the effects of several polyphenols that are either found in coffee or are metabolites of compounds found in coffee (enterodiol, enterolactone, matairesinol, secoisolariciresinol, kaempferol, quercetin, and chlorogenic acid) on glucose homeostasis and health complications associated with glucose dysregulation, with a special emphasis on their potential anti-diabetic effects. The factors that affect polyphenol content in coffee are also addressed.
Collapse
Affiliation(s)
| | | | - William Moore
- Department of Biology and Chemistry, School of Health Sciences, Liberty University, Lynchburg, VA 24515, USA; (B.C.); (S.W.)
| |
Collapse
|
4
|
Tastekin B, Pelit A, Sapmaz T, Celenk A, Majeed M, Mundkur L, Nagabhushanam K. The Effects of Antioxidants and Pulsed Magnetic Fields on Slow and Fast Skeletal Muscle Atrophy Induced by Streptozotocin: A Preclinical Study. J Diabetes Res 2023; 2023:6657869. [PMID: 38020198 PMCID: PMC10661870 DOI: 10.1155/2023/6657869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 07/20/2023] [Accepted: 10/09/2023] [Indexed: 12/01/2023] Open
Abstract
Results Our findings suggest that antioxidants and PMF may alleviate impaired protein synthesis and degradation pathways in skeletal muscle atrophy. PTS showed a positive effect on the anabolic pathway, while RSV and PMF demonstrated potential for ameliorating the catabolic pathway. Notably, the combination therapy of antioxidants and PMF exhibited a stronger ameliorative effect on skeletal muscle atrophy than either intervention alone. Conclusion The present results highlight the benefits of employing a multimodal approach, involving both antioxidant and PMF therapy, for the management of muscle-wasting conditions. These treatments may have potential therapeutic implications for skeletal muscle atrophy.
Collapse
Affiliation(s)
- Bora Tastekin
- Department of Biophysics, Faculty of Medicine, Cukurova University, Adana, Türkiye
| | - Aykut Pelit
- Department of Biophysics, Faculty of Medicine, Cukurova University, Adana, Türkiye
| | - Tugce Sapmaz
- Department of Histology and Embryology, Faculty of Medicine, Cukurova University, Adana, Türkiye
| | - Alper Celenk
- Department of Histology and Embryology, Faculty of Medicine, Cukurova University, Adana, Türkiye
| | - Muhammed Majeed
- Sami-Sabinsa Group Ltd., 19/1 & 19/2 I Main, II Phase, Peenya Industrial Area, Bangalore, India
- Sabinsa Corporation, 20 Lake Drive, East Windsor, New Jersey, USA
| | - Lakshmi Mundkur
- Sami-Sabinsa Group Ltd., 19/1 & 19/2 I Main, II Phase, Peenya Industrial Area, Bangalore, India
| | | |
Collapse
|
5
|
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.
Collapse
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
| |
Collapse
|
6
|
Liu YH, Lin YS, Sie YY, Wang CC, Chang CI, Hou WC. Vitisin B, a resveratrol tetramer from Vitis thunbergii var. taiwaniana, ameliorates impaired glucose regulations in nicotinamide/streptozotocin-induced type 2 diabetic mice. J Tradit Complement Med 2023; 13:479-488. [PMID: 37693102 PMCID: PMC10491982 DOI: 10.1016/j.jtcme.2023.05.003] [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: 11/01/2022] [Revised: 05/03/2023] [Accepted: 05/30/2023] [Indexed: 09/12/2023] Open
Abstract
Background and aim In Taiwan, Vitis thunbergii var. taiwaniana (VTT) is used in traditional medicine and as a local tea. VTT rich in resveratrol and resveratrol oligomers have been reported to exhibit anti-obesity and anti-hypertensive activities in animal models; however, no studies have investigated type 2 diabetes mellitus (T2DM) treatments. This study aimed to investigate the anti-T2DM effects of resveratrol tetramers isolated from the VTT in nicotinamide/streptozotocin (STZ)-induced Institute of Cancer Research (ICR) mice. Experimental procedure The oral glucose tolerance test (OGTT) was used to imitate postprandial blood glucose (BG) regulations in mice by pre-treatment with VTT extracts, resveratrol tetramers of vitisin A, vitisin B, and hopeaphenol 30 min before glucose loads. Vitisin B (50 mg/kg) was administered to treat T2DM-ICR mice once daily for 28 days to investigate its hypoglycemic activity. Results and conclusion Mice pre-treated with VTT-S-95EE, or vitisin B (100 mg/kg) 30-min before glucose loading showed significant reductions (P < 0.001) in the area under the curve at 120-min (BG-AUC0-120) than those without pre-treatment with VTT-S-95 E E or vitisin B. Vitisin B-treated T2DM mice showed hypoglycemic activities via a reduction in plasma dipeptidyl peptidase (DPP)-IV activities to maintain insulin actions and differed significantly than those of untreated T2DM mice (P < 0.05), and also reduced BG-AUC0-120 and insulin-AUC0-120 in the OGTT.These in vivo results showed that VTT containing vitisin B would be beneficial for developing nutraceuticals and/or functional foods for glycemic control in patients with T2DM, which should be investigated further.
Collapse
Affiliation(s)
- Yuh-Hwa Liu
- Department of General Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, 110, Taiwan
- Division of Gastroenterology, Shin Kong Wu Ho-Su Memorial Hospital, Taipei, 111, Taiwan
| | - Yin-Shiou Lin
- Graduate Institute of Pharmacognosy, Taipei Medical University, Taipei, 110, Taiwan
| | - Yi-Yan Sie
- Ph.D. Program in Clinical Drug Development of Herbal Medicine, College of Pharmacy, Taipei Medical University, Taipei, Taiwan
| | - Ching-Chiung Wang
- Ph.D. Program in Clinical Drug Development of Herbal Medicine, College of Pharmacy, Taipei Medical University, Taipei, Taiwan
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei, 110, Taiwan
| | - Chi-I Chang
- Department of Biological Science and Technology, National Pingtung University of Science and Technology, Pingtung, 912, Taiwan
| | - Wen-Chi Hou
- Graduate Institute of Pharmacognosy, Taipei Medical University, Taipei, 110, Taiwan
| |
Collapse
|
7
|
Toniolo L, Concato M, Giacomello E. Resveratrol, a Multitasking Molecule That Improves Skeletal Muscle Health. Nutrients 2023; 15:3413. [PMID: 37571349 PMCID: PMC10421121 DOI: 10.3390/nu15153413] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 07/29/2023] [Accepted: 07/30/2023] [Indexed: 08/13/2023] Open
Abstract
Resveratrol is a natural polyphenol utilized in Chinese traditional medicine and thought to be one of the determinants of the "French Paradox". More recently, some groups evidenced its properties as a calorie-restriction mimetic, suggesting that its action passes through the modulation of skeletal muscle metabolism. Accordingly, the number of studies reporting the beneficial effects of resveratrol on skeletal muscle form and function, in both experimental models and humans, is steadily increasing. Although studies on animal models confer to resveratrol a good potential to ameliorate skeletal muscle structure, function and performance, clinical trials still do not provide clear-cut information. Here, we first summarize the effects of resveratrol on the distinct components of the skeletal muscle, such as myofibers, the neuromuscular junction, tendons, connective sheaths and the capillary bed. Second, we review clinical trials focused on the analysis of skeletal muscle parameters. We suggest that the heterogeneity in the response to resveratrol in humans could depend on sample characteristics, treatment modalities and parameters analyzed; as well, this heterogeneity could possibly reside in the complexity of skeletal muscle physiology. A systematic programming of treatment protocols and analyses could be helpful to obtain consistent results in clinical trials involving resveratrol administration.
Collapse
Affiliation(s)
- Luana Toniolo
- Laboratory of Muscle Biophysics, Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy
| | - Monica Concato
- Department of Medicine, Surgery and Health Sciences, University of Trieste, 34149 Trieste, Italy;
| | - Emiliana Giacomello
- Department of Medicine, Surgery and Health Sciences, University of Trieste, 34149 Trieste, Italy;
| |
Collapse
|
8
|
Hoca M, Becer E, Vatansever HS. The role of resveratrol in diabetes and obesity associated with insulin resistance. Arch Physiol Biochem 2023; 129:555-561. [PMID: 33719825 DOI: 10.1080/13813455.2021.1893338] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Diabetes mellitus is a significant health problem that is caused by chronic hyperglycaemia as a result of inadequate insulin production or ineffective insulin action in the body. In recent years, many new pharmacological and non-pharmacological therapies have been developed for improving pancreatic insulin secretion and insulin resistance. Resveratrol is a natural and biologically active stilbenoid polyphenol present in various plant species and has the potential to benefit diabetes. The anti-diabetic actions of resveratrol have also been extensively studied in diabetic human and animal models. Moreover, resveratrol might affect insulin sensitivity by regulating visceral fat derivated adipokine levels. The use of resveratrol in combination with anti-diabetic therapies or alone may have significant potential for the management of diabetes mellitus. This review provides an overview of the anti-diabetic action of resveratrol as well as the possible mechanisms that have an effect on insulin secretion and insulin resistance in diabetics.
Collapse
Affiliation(s)
- Mustafa Hoca
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Near East University, Nicosia, Cyprus
| | - Eda Becer
- Department of Biochemistry, Faculty of Pharmacy, Near East University, Nicosia, Cyprus
- DESAM Institute, Near East University, Nicosia, Cyprus
| | - Hafize Seda Vatansever
- DESAM Institute, Near East University, Nicosia, Cyprus
- Department of Histology and Embryology, Faculty of Medicine, Manisa Celal Bayar University, Manisa, Turkey
| |
Collapse
|
9
|
Huang J, Huang N, Mao Q, Shi J, Qiu Y. Natural bioactive compounds in Alzheimer's disease: From the perspective of type 3 diabetes mellitus. Front Aging Neurosci 2023; 15:1130253. [PMID: 37009462 PMCID: PMC10062602 DOI: 10.3389/fnagi.2023.1130253] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Accepted: 02/20/2023] [Indexed: 03/18/2023] Open
Abstract
There is a close relationship between Alzheimer's disease (AD) and diabetes mellitus (DM), and the link between the two is often referred to as type 3 diabetes mellitus (T3DM). Many natural bioactive compounds have shown the potential to treat AD and diabetes. We mainly review the polyphenols represented by resveratrol (RES) and proanthocyanidins (PCs) and alkaloids represented by berberine (BBR) and Dendrobium nobile Lindl. alkaloids (DNLA) from the perspective of T3DM to review the neuroprotective effects and molecular mechanisms of natural compounds in AD.
Collapse
Affiliation(s)
- Juan Huang
- Department of Pharmacology and Chemical Biology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Lab of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou, China
- School of Public Health, Zunyi Medical University, Zunyi, Guizhou, China
| | - Nanqu Huang
- National Drug Clinical Trial Institution, Third Affiliated Hospital of Zunyi Medical University (The First People's Hospital of Zunyi), Zunyi, Guizhou, China
| | - Qianhua Mao
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Lab of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou, China
| | - Jingshan Shi
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Lab of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou, China
- Jingshan Shi
| | - Yu Qiu
- Department of Pharmacology and Chemical Biology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- *Correspondence: Yu Qiu
| |
Collapse
|
10
|
Su M, Zhao W, Xu S, Weng J. Resveratrol in Treating Diabetes and Its Cardiovascular Complications: A Review of Its Mechanisms of Action. Antioxidants (Basel) 2022; 11:antiox11061085. [PMID: 35739982 PMCID: PMC9219679 DOI: 10.3390/antiox11061085] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 05/21/2022] [Accepted: 05/27/2022] [Indexed: 02/01/2023] Open
Abstract
Diabetes mellitus (DM) is one of the most prevalent chronic diseases worldwide. High morbidity and mortality caused by DM are closely linked to its complications in multiple organs/tissues, including cardiovascular complications, diabetic nephropathy, and diabetic neuropathy. Resveratrol is a plant-derived polyphenolic compound with pleiotropic protective effects, ranging from antioxidant and anti-inflammatory to hypoglycemic effects. Recent studies strongly suggest that the consumption of resveratrol offers protection against diabetes and its cardiovascular complications. The protective effects of resveratrol involve the regulation of multiple signaling pathways, including inhibition of oxidative stress and inflammation, enhancement of insulin sensitivity, induction of autophagy, regulation of lipid metabolism, promotion of GLUT4 expression, and translocation, and activation of SIRT1/AMPK signaling axis. The cardiovascular protective effects of resveratrol have been recently reviewed in the literature, but the role of resveratrol in preventing diabetes mellitus and its cardiovascular complications has not been systematically reviewed. Therefore, in this review, we summarize the pharmacological effects and mechanisms of action of resveratrol based on in vitro and in vivo studies, highlighting the therapeutic potential of resveratrol in the prevention and treatment of diabetes and its cardiovascular complications.
Collapse
|
11
|
Resveratrol Inhibits Metabolism and Affects Blood Platelet Function in Type 2 Diabetes. Nutrients 2022; 14:nu14081633. [PMID: 35458194 PMCID: PMC9026466 DOI: 10.3390/nu14081633] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 04/07/2022] [Accepted: 04/12/2022] [Indexed: 11/17/2022] Open
Abstract
Chronic hyperglycemia contributes to vascular complications in diabetes. Resveratrol exerts anti-diabetic and anti-platelet action. This study aimed to evaluate the effects of resveratrol on metabolism and the function of blood platelets under static and in in vitro flow conditions in patients with type 2 diabetes. Blood obtained from 8 healthy volunteers and 10 patients with type 2 diabetes was incubated with resveratrol and perfused over collagen-coated capillaries. Isolated blood platelets were incubated with resveratrol and activated by collagen to assess platelet function, metabolism, ATP release, TXA2 production, lipid peroxidation, and gluthatione content. In the type 2 diabetes group, plasma glucose and fructosamine concentrations were significantly higher than in the healthy group. In in vitro studies, collagen-induced thrombi formation in the blood of diabetic patients was 33% higher than in the healthy group. Resveratrol reduced thrombi by over 50% in the blood of healthy and diabetic patients. TXA2 production was 47% higher in diabetic platelets than in the healthy group. Resveratrol reduced TXA2 release by 38% in healthy platelets and by 79% in diabetic platelets. Resveratrol also reduced the activities of enzymes responsible for glycolysis and oxidative metabolism in the platelets of both groups. These data indicate that the resveratrol-induced inhibition of platelet metabolism and TXA2 release may lead to a reduction of platelet function and thrombus formation in patients with type 2 diabetes. Therefore, resveratrol may be beneficial to prevent vascular complications as a future complementary treatment in aspirin-resistant diabetic patients.
Collapse
|
12
|
BULDUK B, OTO G, GÜNBATAR N, BULDUK M, KOÇAK Y, ELASAN S. The effect of resveratrol on toxicity caused by cisplatin in rats with experimentally created diabetes by streptozotocin. JOURNAL OF HEALTH SCIENCES AND MEDICINE 2022. [DOI: 10.32322/jhsm.999224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
|
13
|
Alam S, Sarker MMR, Sultana TN, Chowdhury MNR, Rashid MA, Chaity NI, Zhao C, Xiao J, Hafez EE, Khan SA, Mohamed IN. Antidiabetic Phytochemicals From Medicinal Plants: Prospective Candidates for New Drug Discovery and Development. Front Endocrinol (Lausanne) 2022; 13:800714. [PMID: 35282429 PMCID: PMC8907382 DOI: 10.3389/fendo.2022.800714] [Citation(s) in RCA: 64] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Accepted: 01/04/2022] [Indexed: 02/05/2023] Open
Abstract
Diabetes, a chronic physiological dysfunction affecting people of different age groups and severely impairs the harmony of peoples' normal life worldwide. Despite the availability of insulin preparations and several synthetic oral antidiabetic drugs, there is a crucial need for the discovery and development of novel antidiabetic drugs because of the development of resistance and side effects of those drugs in long-term use. On the contrary, plants or herbal sources are getting popular day by day to the scientists, researchers, and pharmaceutical companies all over the world to search for potential bioactive compound(s) for the discovery and development of targeted novel antidiabetic drugs that may control diabetes with the least unwanted effects of conventional antidiabetic drugs. In this review, we have presented the prospective candidates comprised of either isolated phytochemical(s) and/or extract(s) containing bioactive phytoconstituents which have been reported in several in vitro, in vivo, and clinical studies possessing noteworthy antidiabetic potential. The mode of actions, attributed to antidiabetic activities of the reported phytochemicals and/or plant extracts have also been described to focus on the prospective phytochemicals and phytosources for further studies in the discovery and development of novel antidiabetic therapeutics.
Collapse
Affiliation(s)
- Safaet Alam
- Department of Pharmacy, State University of Bangladesh, Dhaka, Bangladesh
| | - Md. Moklesur Rahman Sarker
- Department of Pharmacy, State University of Bangladesh, Dhaka, Bangladesh
- Pharmacology and Toxicology Research Division, Health Med Science Research Limited, Dhaka, Bangladesh
- *Correspondence: Md. Moklesur Rahman Sarker, ; ; orcid.org/0000-0001-9795-0608; Isa Naina Mohamed, ; orcid.org/0000-0001-8891-2423
| | | | | | - Mohammad A. Rashid
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Dhaka, Dhaka, Bangladesh
| | | | - Chao Zhao
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Jianbo Xiao
- Department of Analytical Chemistry and Food Science, Faculty of Food Science and Technology, University of Vigo, Vigo, Spain
| | - Elsayed E. Hafez
- Plant Protection and Biomolecular Diagnosis Department, ALCRI (Arid Lands Cultivation Research Institute), City of Scientific Research and Technological Applications, Alexandria, Egypt
| | - Shah Alam Khan
- College of Pharmacy, National University of Science & Technology, Muscat, Oman
| | - Isa Naina Mohamed
- Pharmacology Department, Medicine Faculty, Universiti Kebangsaan Malaysia (The National University of Malaysia), Kuala Lumpur, Malaysia
- *Correspondence: Md. Moklesur Rahman Sarker, ; ; orcid.org/0000-0001-9795-0608; Isa Naina Mohamed, ; orcid.org/0000-0001-8891-2423
| |
Collapse
|
14
|
Nie T, Cooper GJS. Mechanisms Underlying the Antidiabetic Activities of Polyphenolic Compounds: A Review. Front Pharmacol 2021; 12:798329. [PMID: 34970150 PMCID: PMC8712966 DOI: 10.3389/fphar.2021.798329] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 11/18/2021] [Indexed: 12/16/2022] Open
Abstract
Polyphenolic compounds are thought to show considerable promise for the treatment of various metabolic disorders, including type 2 diabetes mellitus (T2DM). This review addresses evidence from in vitro, in vivo, and clinical studies for the antidiabetic effects of certain polyphenolic compounds. We focus on the role of cytotoxic human amylin (hA) aggregates in the pathogenesis of T2DM, and how polyphenols can ameliorate this process by suppressing or modifying their formation. Small, soluble amylin oligomers elicit cytotoxicity in pancreatic islet β-cells and may thus cause β-cell disruption in T2DM. Amylin oligomers may also contribute to oxidative stress and inflammation that lead to the triggering of β-cell apoptosis. Polyphenols may exert antidiabetic effects via their ability to inhibit hA aggregation, and to modulate oxidative stress, inflammation, and other pathways that are β-cell-protective or insulin-sensitizing. There is evidence that their ability to inhibit and destabilize self-assembly by hA requires aromatic molecular structures that bind to misfolding monomers or oligomers, coupled with adjacent hydroxyl groups present on single phenyl rings. Thus, these multifunctional compounds have the potential to be effective against the pleiotropic mechanisms of T2DM. However, substantial further research will be required before it can be determined whether a polyphenol-based molecular entity can be used as a therapeutic for type 2 diabetes.
Collapse
Affiliation(s)
- Tina Nie
- School of Biological Sciences, Faculty of Science, the University of Auckland, Auckland, New Zealand
| | - Garth J. S. Cooper
- School of Biological Sciences, Faculty of Science, the University of Auckland, Auckland, New Zealand
- The Maurice Wilkins Centre for Molecular Biodiscovery, Faculty of Science, the University of Auckland, Auckland, New Zealand
- Centre for Advanced Discovery and Experimental Therapeutics, Division of Cardiovascular Sciences, Faculty of Biology Medicine & Health, School of Medical Sciences, The University of Manchester, Manchester, United Kingdom
| |
Collapse
|
15
|
Zhang S, Dai Q, Zhang B, Liu S, Wang Y, Zhang Y, Chen D, Zong N, Wang H, Ding J, Gao Q, Wen Y. Syngeneic bone marrow transplantation in combination with PI3K inhibitor reversed hyperglycemia in later-stage streptozotocin-induced diabetes. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:1642. [PMID: 34988151 PMCID: PMC8667114 DOI: 10.21037/atm-21-3329] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 09/30/2021] [Indexed: 01/11/2023]
Abstract
Background Type 1 diabetes (T1D) is a multiple factor autoimmune disease characterized by T cell-mediated immune destruction of islet β cells. Autologous hematopoietic stem cell transplantation (AHSCT) has been a novel strategy for patients with new-onset T1D, but not for those with a later diagnosis. Disturbance of regulatory T cells (Tregs) likely contributes to poor response after transplantation in later-stage T1D. Inhibition of phosphoinositide 3-kinases (PI3K)/Akt signaling maintains Tregs’ homeostasis. Methods We built a later-stage streptozotocin (STZ)-induced T1D mouse model. Syngeneic bone marrow transplantation (syn-BMT) was performed 20 days after the onset of diabetes in combination with BKM120 (a PI3K inhibitor). Meanwhile, another group of STZ-diabetic mice were transplanted with bone marrow cells cocultured with BKM120 in vitro for 24 h. Fasting glucose and glucose tolerance were recorded during the entire experimental observation after syn-BMT. Samples were collected 126 days after syn-BMT. Hematoxylin and eosin (H&E) staining was used to detect the effect of PI3K inhibitor combined with syn-BMT on morphology of the T1D pancreas. CD4+CD25− T cells and CD4+CD25+ T cells were sorted by magnetic cell sorting (MACS), then fluorescence activated cell sorting (FACS) and quantitative real-time PCR (qPCR) were used to detect the effect of PI3K inhibitor on modulating immune disorder and restoring the function of Treg cells. Results Our investigation showed syn-BMT in combination with BKM120 effectively maintained normoglycemia in later-stage T1D. The disease remission effects may be induced by the rebalance of Th17/Tregs dysregulation and restoration of Tregs’ immunosuppressive function by BKM120 after syn-BMT. Conclusions These results may reveal important connections for PI3K/Akt inhibition and Tregs’ homeostasis in T1D after transplantation. AHSCT combining immunoregulatory strategies such as PI3K inhibition may be a promising therapeutic approach in later-stage T1D.
Collapse
Affiliation(s)
- Shiyun Zhang
- Department of Basic Medicine, Center of Translational Medicine, Jiangsu Key Laboratory of Molecular Medicine, Nanjing University Medical School, Nanjing, China
| | - Qianqian Dai
- Department of Basic Medicine, Center of Translational Medicine, Jiangsu Key Laboratory of Molecular Medicine, Nanjing University Medical School, Nanjing, China
| | - Bin Zhang
- Department of Basic Medicine, Center of Translational Medicine, Jiangsu Key Laboratory of Molecular Medicine, Nanjing University Medical School, Nanjing, China
| | - Siyang Liu
- Department of Basic Medicine, Center of Translational Medicine, Jiangsu Key Laboratory of Molecular Medicine, Nanjing University Medical School, Nanjing, China
| | - Ying Wang
- Department of Basic Medicine, Center of Translational Medicine, Jiangsu Key Laboratory of Molecular Medicine, Nanjing University Medical School, Nanjing, China
| | - Yixue Zhang
- Department of Basic Medicine, Center of Translational Medicine, Jiangsu Key Laboratory of Molecular Medicine, Nanjing University Medical School, Nanjing, China
| | - Dongyue Chen
- Department of Basic Medicine, Center of Translational Medicine, Jiangsu Key Laboratory of Molecular Medicine, Nanjing University Medical School, Nanjing, China
| | - Ningning Zong
- Department of Basic Medicine, Center of Translational Medicine, Jiangsu Key Laboratory of Molecular Medicine, Nanjing University Medical School, Nanjing, China
| | - Hongwei Wang
- Department of Basic Medicine, Center of Translational Medicine, Jiangsu Key Laboratory of Molecular Medicine, Nanjing University Medical School, Nanjing, China
| | - Jingjing Ding
- Department of Respiratory Medicine, Jiangsu Key Laboratory of Molecular Medicine, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Qian Gao
- Department of Basic Medicine, Center of Translational Medicine, Jiangsu Key Laboratory of Molecular Medicine, Nanjing University Medical School, Nanjing, China
| | - Yanting Wen
- Department of Basic Medicine, Center of Translational Medicine, Jiangsu Key Laboratory of Molecular Medicine, Nanjing University Medical School, Nanjing, China
| |
Collapse
|
16
|
Design, synthesis, kinetic, molecular dynamics, and hypoglycemic effect characterization of new and potential selective benzimidazole derivatives as Protein Tyrosine Phosphatase 1B inhibitors. Bioorg Med Chem 2021; 48:116418. [PMID: 34563877 DOI: 10.1016/j.bmc.2021.116418] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 08/27/2021] [Accepted: 09/13/2021] [Indexed: 11/21/2022]
Abstract
Protein-tyrosine phosphatase 1B (PTP1B) is a negative regulator of insulin signaling pathway and has been validated as a therapeutic target for type 2 diabetes. A wide variety of scaffolds have been included in the structure of PTP1B inhibitors, one of them is the benzimidazole nucleus. Here, we report the design and synthesis of a new series of di- and tri- substituted benzimidazole derivatives including their kinetic and structural characterization as PTP1B inhibitors and hypoglycemic activity. Results show that compounds 43, 44, 45, and 46 are complete mixed type inhibitors with a Ki of 12.6 μM for the most potent (46). SAR type analysis indicates that a chloro substituent at position 6(5), a β-naphthyloxy at position 5(6), and a p-benzoic acid attached to the linker 2-thioacetamido at position 2 of the benzimidazole nucleus, was the best combination for PTP1B inhibition and hypoglycemic activity. In addition, molecular dynamics studies suggest that these compounds could be potential selective inhibitors from other PTPs such as its closest homologous TCPTP, SHP-1, SHP-2 and CDC25B. Therefore, the compounds reported here are good hits that provide structural, kinetic, and biological information that can be used to develop novel and selective PTP1B inhibitors based on benzimidazole scaffold.
Collapse
|
17
|
Ribeiro R, Santos AC, Calazans MO, De Oliveira ACP, Vieira LB. Is resveratrol a prospective therapeutic strategy in the co-association of glucose metabolism disorders and neurodegenerative diseases? Nutr Neurosci 2021; 25:2442-2457. [PMID: 34514962 DOI: 10.1080/1028415x.2021.1972514] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Objectives: The mechanism behind the progression of Mild Cognitive Impairment (MCI) to Alzheimer's disease (AD) remains poorly understood. However some evidence pointed out that the co-occurrence of metabolic conditions affecting glucose homeostasis, as type 2 diabetes mellitus (T2DM), may be an important catalyst in this context. Notably, candidate drugs which modulate common pathways in the development of MCI-to-AD mediated by T2DM may offer likely therapy for AD. Nonetheless, limited pharmacological alternatives that modulate common pathways in T2DM, MCI, and AD are available. In the recent decades, studies have shown that resveratrol may act as a neuroprotective compound, but little is known about its potential in improving cognitive and metabolic aspects associated with AD progression mediated by the co-association between TDM2-MCI.Methods: In this review, we discuss possible protective mechanisms of resveratrol on shared pathways associated with AD progression mediated by T2DM-MCI co-occurrence.Results: Some studies indicated that insulin resistance and hyperglycemia may be also a T2DM risk factor for the progression of MCI-to-AD, promoting alterations in metabolic pathways associated with neuronal plasticity, and increasing pro-inflammatory environment. Interestingly, basic research and clinical trials indicate that resveratrol may modulate those pathways, showing a potential neuroprotective effect of this polyphenol.Conclusion: Therefore, there is not enough clinical data supporting the translational therapeutic use of resveratrol in this scenario.
Collapse
Affiliation(s)
- R Ribeiro
- Departamento de Farmacologia, ICB, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - A C Santos
- Departamento de Farmacologia, ICB, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - M O Calazans
- Departamento de Farmacologia, ICB, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - A C P De Oliveira
- Departamento de Farmacologia, ICB, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - L B Vieira
- Departamento de Farmacologia, ICB, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| |
Collapse
|
18
|
Moroccan antidiabetic medicinal plants: Ethnobotanical studies, phytochemical bioactive compounds, preclinical investigations, toxicological validations and clinical evidences; challenges, guidance and perspectives for future management of diabetes worldwide. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.03.032] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
|
19
|
Chen CC, Lii CK, Lo CW, Lin YH, Yang YC, Huang CS, Chen HW. 14-Deoxy-11,12-Didehydroandrographolide Ameliorates Glucose Intolerance Enhancing the LKB1/AMPK[Formula: see text]/TBC1D1/GLUT4 Signaling Pathway and Inducing GLUT4 Expression in Myotubes and Skeletal Muscle of Obese Mice. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2021; 49:1473-1491. [PMID: 34240660 DOI: 10.1142/s0192415x21500695] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
14-Deoxy-11,12-didehydroandrographolide (deAND), a bioactive component of Andrographis paniculata, has antidiabetic activity. AMP-activated protein kinase (AMPK) regulates glucose transport and ameliorates insulin resistance. The aim of the present study was to investigate whether activation of AMPK is involved in the mechanism by which deAND ameliorates insulin resistance in muscles. deAND amounts up to 40 [Formula: see text]M dose-dependently activated phosphorylation of AMPK[Formula: see text] and TBC1D1 in C2C12 myotubes. In addition, deAND significantly activated phosphorylation of LKB1 at 6 h after treatment, and this activation was maintained up to 48 h. deAND increased glucose uptake at 18 h after treatment, and this increase was time dependent up to 72 h. Compound C, an inhibitor of AMPK, suppressed deAND-induced phosphorylation of AMPK[Formula: see text] and TBC1D1 and reversed the effect on glucose uptake. In addition, the expression of GLUT4 mRNA and protein in C2C12 myotubes was up-regulated by deAND in a time-dependent manner. Promotion of GLUT4 gene transcription was verified by a pGL3-GLUT4 (837 bp) reporter assay. deAND also increased the nuclear translocation of MEF-2A and PPAR[Formula: see text]. After 16 weeks of feeding, the high-fat diet (HFD) inhibited phosphorylation of AMPK[Formula: see text] and TBC1D1 in skeletal muscle of obese C57BL/6JNarl mice, and deactivation of AMPK[Formula: see text] and TBC1D1 by the HFD was abolished by deAND supplementation. Supplementation with deAND significantly promoted membrane translocation of GLUT4 compared with the HFD group. Supplementation also significantly increased GLUT4 mRNA and protein expression in skeletal muscle compared with the HFD group. The hypoglycemic effects of deAND are likely associated with activation of the LKB1/AMPK[Formula: see text]/TBC1D1/GLUT4 signaling pathway and stimulation of MEF-2A- and PPAR[Formula: see text]-dependent GLUT4 gene expression, which account for the glucose uptake into skeletal muscle and lower blood glucose levels.
Collapse
Affiliation(s)
- Chih-Chieh Chen
- Department of Nutrition, China Medical University, Taichung, Taiwan
| | - Chong-Kuei Lii
- Department of Nutrition, China Medical University, Taichung, Taiwan.,Department of Food Nutrition and Health Biotechnology, Asia University, Taichung, Taiwan
| | - Chia-Wen Lo
- Department of Nutrition, China Medical University, Taichung, Taiwan
| | - Yi-Hsueh Lin
- Department of Nutrition, China Medical University, Taichung, Taiwan
| | - Ya-Chen Yang
- Department of Food Nutrition and Health Biotechnology, Asia University, Taichung, Taiwan
| | - Chin-Shiu Huang
- Department of Food Nutrition and Health Biotechnology, Asia University, Taichung, Taiwan
| | - Haw-Wen Chen
- Department of Nutrition, China Medical University, Taichung, Taiwan
| |
Collapse
|
20
|
Resveratrol inclusion alleviated high-dietary-carbohydrate-induced glycogen deposition and immune response of largemouth bass , Micropterus salmoides. Br J Nutr 2021; 127:165-176. [PMID: 33583445 DOI: 10.1017/s0007114521000544] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Excessive hepatic glycogen accumulation commonly impairs hepatocytes function and further produces negative effects on growth and health status of carnivorous fish. A 9-week feeding trial was conducted to explore the potential regulation of resveratrol (RSV) on high-carbohydrate-induced glycogen deposition and immune response of largemouth bass. Results showed that high dietary carbohydrate (10 % inclusion of starch) led to hepatic glycogen accumulation and post-prandial hyperglycemia compared with the diet with 5 % starch, which was both alleviated with the inclusion of RSV. The use of RSV promoted the expression of sirtuin 1, which was down-regulated by high dietary carbohydrate. Meanwhile, RSV inclusion promoted the expression of genes involved in insulin pathway and glycolysis and inhibited the expression of gluconeogenesis-related genes. Additionally, high dietary carbohydrate significantly reduced lysozyme content but increased complement C4 content, which were both reversed with RSV supplementation. Meanwhile, RSV inclusion inhibited the expression of pro-inflammatory cytokines but promoted anti-inflammatory cytokines expression, compared with the high carbohydrate treatment. In conclusion, RSV inclusion was beneficial in alleviating high-dietary-carbohydrate-induced glycogen accumulation and immune response in largemouth bass.
Collapse
|
21
|
Flavonoids as natural phenolic compounds and their role in therapeutics: an overview. FUTURE JOURNAL OF PHARMACEUTICAL SCIENCES 2021; 7:25. [PMID: 33495733 PMCID: PMC7816146 DOI: 10.1186/s43094-020-00161-8] [Citation(s) in RCA: 110] [Impact Index Per Article: 36.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 12/21/2020] [Indexed: 12/26/2022] Open
Abstract
Background Natural plants and plant-derived formulations have been used by mankind from the ancient period of time. For the past few years, many investigations elaborated the therapeutic potential of various secondary chemicals present in the plants. Literature revealed that the various secondary metabolites, viz. phenolics and flavonoids, are responsible for a variety of therapeutic action in humans. Main body In the present review, an attempt has been made to compile the exploration of natural phenolic compounds with major emphasis on flavonoids and their therapeutic potential too. Interestingly, long-term intake of many dietary foods (rich in phenolics) proved to be protective against the development and management of diabetes, cancer, osteoporosis, cardiovascular diseases and neurodegenerative diseases, etc. Conclusion This review presents an overview of flavonoid compounds to use them as a potential therapeutic alternative in various diseases and disorders. In addition, the present understanding of phenolics and flavonoids will serve as the basis for the next scientific studies.
Collapse
|
22
|
Giacometti J, Muhvić D, Grubić-Kezele T, Nikolić M, Šoić-Vranić T, Bajek S. Olive Leaf Polyphenols (OLPs) Stimulate GLUT4 Expression and Translocation in the Skeletal Muscle of Diabetic Rats. Int J Mol Sci 2020; 21:ijms21238981. [PMID: 33256066 PMCID: PMC7729747 DOI: 10.3390/ijms21238981] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 11/24/2020] [Indexed: 12/18/2022] Open
Abstract
Skeletal muscles are high-insulin tissues responsible for disposing of glucose via the highly regulated process of facilitated glucose transporter 4 (GLUT4). Impaired insulin action in diabetes, as well as disorders of GLUT4 vesicle trafficking in the muscle, are involved in defects in insulin-stimulated GLUT4 translocation. Since the Rab GTPases are the main regulators of vesicular membrane transport in exo- and endo-cytosis, in the present work, we studied the effect of olive leaf polyphenols (OLPs) on Rab8A, Rab13, and Rab14 proteins of the rat soleus muscle in a model of streptozotocin (SZT)-induced diabetes (DM) in a dose-dependent manner. Glucose, cholesterol, and triglyceride levels were determined in the blood, morphological changes of the muscle tissue were captured by hematoxylin and eosin histological staining, and expression of GLUT4, Rab8A, Rab13, and Rab14 proteins were analyzed in the rat soleus muscle by the immunofluorescence staining and immunoblotting. OLPs significantly reduced blood glucose level in all treated groups. Furthermore, significantly reduced blood triglycerides were found in the groups with the lowest and highest OLPs treatment. The dynamics of activation of Rab8A, Rab13, and Rab14 was OLPs dose-dependent and more effective at higher OLP doses. Thus, these results indicate a beneficial role of phenolic compounds from the olive leaf in the regulation of glucose homeostasis in the skeletal muscle.
Collapse
Affiliation(s)
- Jasminka Giacometti
- Department of Biotechnology, University of Rijeka, Radmile Matejčić 2, 51000 Rijeka, Croatia
- Correspondence: ; Tel.: +385-51-584-557
| | - Damir Muhvić
- Department of Physiology and Immunology, Faculty of Medicine, University of Rijeka, Braće Branchetta 20, 51000 Rijeka, Croatia; (D.M.); (T.G.-K.)
| | - Tanja Grubić-Kezele
- Department of Physiology and Immunology, Faculty of Medicine, University of Rijeka, Braće Branchetta 20, 51000 Rijeka, Croatia; (D.M.); (T.G.-K.)
- Clinical Department for Clinical Microbiology, Clinical Hospital Center Rijeka, Krešimirova 42, 51000 Rijeka, Croatia
| | - Marina Nikolić
- Department of Anatomy, Faculty of Medicine, University of Rijeka, Braće Branchetta 20, 51000 Rijeka, Croatia; (M.N.); (T.Š.-V.); (S.B.)
| | - Tamara Šoić-Vranić
- Department of Anatomy, Faculty of Medicine, University of Rijeka, Braće Branchetta 20, 51000 Rijeka, Croatia; (M.N.); (T.Š.-V.); (S.B.)
| | - Snježana Bajek
- Department of Anatomy, Faculty of Medicine, University of Rijeka, Braće Branchetta 20, 51000 Rijeka, Croatia; (M.N.); (T.Š.-V.); (S.B.)
| |
Collapse
|
23
|
Raffaele M, Licari M, Amin S, Alex R, Shen HH, Singh SP, Vanella L, Rezzani R, Bonomini F, Peterson SJ, Stec DE, Abraham NG. Cold Press Pomegranate Seed Oil Attenuates Dietary-Obesity Induced Hepatic Steatosis and Fibrosis through Antioxidant and Mitochondrial Pathways in Obese Mice. Int J Mol Sci 2020; 21:ijms21155469. [PMID: 32751794 PMCID: PMC7432301 DOI: 10.3390/ijms21155469] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 07/20/2020] [Accepted: 07/29/2020] [Indexed: 12/12/2022] Open
Abstract
Aim: Obesity is associated with metabolic syndrome, hypertension, dyslipidemia, nonalcoholic fatty liver disease (NAFLD), and type 2 diabetes. In this study, we investigated whether the dietary supplementation of pomegranate seed oil (PSO) exerted a protective effect on liver lipid uptake, fibrosis, and mitochondrial function in a mouse model of obesity and insulin resistance. Method: In this in vivo study, eight-week-old C57BL/6J male mice were fed with a high fat diet (HFD) for 24 weeks and then were divided into three groups as follows: group (1) Lean; group (n = 6) (2) HF diet; group (n = 6) (3) HF diet treated with PSO (40 mL/kg food) (n = 6) for eight additional weeks starting at 24 weeks. Physiological parameters, lipid droplet accumulation, inflammatory biomarkers, antioxidant biomarkers, mitochondrial biogenesis, insulin sensitivity, and hepatic fibrosis were determined to examine whether PSO intervention prevents obesity-associated metabolic syndrome. Results: The PSO group displayed an increase in oxygen consumption, as well as a decrease in fasting glucose and blood pressure (p < 0.05) when compared to the HFD-fed mice group. PSO increased both the activity and expression of hepatic HO-1, downregulated inflammatory adipokines, and decreased hepatic fibrosis. PSO increased the levels of thermogenic genes, mitochondrial signaling, and lipid metabolism through increases in Mfn2, OPA-1, PRDM 16, and PGC1α. Furthermore, PSO upregulated obesity-mediated hepatic insulin receptor phosphorylation Tyr-972, p-IRB tyr1146, and pAMPK, thereby decreasing insulin resistance. Conclusions: These results indicated that PSO decreased obesity-mediated insulin resistance and the progression of hepatic fibrosis through an improved liver signaling, as manifested by increased insulin receptor phosphorylation and thermogenic genes. Furthermore, our findings indicate a potential therapeutic role for PSO in the prevention of obesity-associated NAFLD, NASH, and other metabolic disorders.
Collapse
Affiliation(s)
- Marco Raffaele
- Departments of Medicine and Pharmacology, New York Medical College, Valhalla, NY 10595, USA; (M.R.); (M.L.); (S.A.); (R.A.); (H.-h.S.); (S.P.S.)
- Department of Drug Sciences, University of Catania, 95123 Catania, Italy;
| | - Maria Licari
- Departments of Medicine and Pharmacology, New York Medical College, Valhalla, NY 10595, USA; (M.R.); (M.L.); (S.A.); (R.A.); (H.-h.S.); (S.P.S.)
- Department of Drug Sciences, University of Catania, 95123 Catania, Italy;
| | - Sherif Amin
- Departments of Medicine and Pharmacology, New York Medical College, Valhalla, NY 10595, USA; (M.R.); (M.L.); (S.A.); (R.A.); (H.-h.S.); (S.P.S.)
| | - Ragin Alex
- Departments of Medicine and Pharmacology, New York Medical College, Valhalla, NY 10595, USA; (M.R.); (M.L.); (S.A.); (R.A.); (H.-h.S.); (S.P.S.)
| | - Hsin-hsueh Shen
- Departments of Medicine and Pharmacology, New York Medical College, Valhalla, NY 10595, USA; (M.R.); (M.L.); (S.A.); (R.A.); (H.-h.S.); (S.P.S.)
| | - Shailendra P. Singh
- Departments of Medicine and Pharmacology, New York Medical College, Valhalla, NY 10595, USA; (M.R.); (M.L.); (S.A.); (R.A.); (H.-h.S.); (S.P.S.)
- Departments of Biotechnology and Biomedical Engineering, Central University of Rajasthan, Rajasthan 305817, India
| | - Luca Vanella
- Department of Drug Sciences, University of Catania, 95123 Catania, Italy;
| | - Rita Rezzani
- Department of Clinical and Experimental Sciences, University of Brescia, 25121 Brescia, Italy; (R.R.); (F.B.)
| | - Francesca Bonomini
- Department of Clinical and Experimental Sciences, University of Brescia, 25121 Brescia, Italy; (R.R.); (F.B.)
| | - Stephen J. Peterson
- Department of Medicine, New York-Presbyterian Brooklyn Methodist Hospital, Brooklyn, NY 11215, USA;
| | - David E. Stec
- Department of Physiology and Biophysics, Cardiorenal and Metabolic Diseases Research Center, University of Mississippi Medical Center, Jackson, MS 39216, USA
- Correspondence: (D.E.S.); (N.G.A.); Tel.: +601-954-3109 (D.E.S.); +914-594-3121 (N.G.A.)
| | - Nader G. Abraham
- Departments of Medicine and Pharmacology, New York Medical College, Valhalla, NY 10595, USA; (M.R.); (M.L.); (S.A.); (R.A.); (H.-h.S.); (S.P.S.)
- Department of Drug Sciences, University of Catania, 95123 Catania, Italy;
- Correspondence: (D.E.S.); (N.G.A.); Tel.: +601-954-3109 (D.E.S.); +914-594-3121 (N.G.A.)
| |
Collapse
|
24
|
Sun C, Zhao C, Guven EC, Paoli P, Simal‐Gandara J, Ramkumar KM, Wang S, Buleu F, Pah A, Turi V, Damian G, Dragan S, Tomas M, Khan W, Wang M, Delmas D, Portillo MP, Dar P, Chen L, Xiao J. Dietary polyphenols as antidiabetic agents: Advances and opportunities. FOOD FRONTIERS 2020. [DOI: 10.1002/fft2.15] [Citation(s) in RCA: 145] [Impact Index Per Article: 36.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Affiliation(s)
- Chongde Sun
- Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology Zhejiang University Hangzhou China
| | - Chao Zhao
- College of Food Science Fujian Agriculture and Forestry University Fuzhou China
- State Key Laboratory of Quality Research in Chinese Medicine Institute of Chinese Medical Sciences University of Macau Macau China
| | - Esra Capanoglu Guven
- Department of Food Engineering Faculty of Chemical and Metallurgical Engineering İstanbul Technical University Istanbul Turkey
| | - Paolo Paoli
- Department of Biomedical, Experimental, and Clinical Sciences University of Florence Florence Italy
| | - Jesus Simal‐Gandara
- Nutrition and Bromatology Group Department of Analytical Chemistry and Food Science Faculty of Food Science and Technology University of Vigo ‐ Ourense Campus Ourense Spain
| | - Kunka Mohanram Ramkumar
- Life Science Division SRM Research Institute SRM University Kattankulathur India
- Department of Biotechnology School of Bio‐engineering SRM University Kattankulathur India
| | - Shengpeng Wang
- State Key Laboratory of Quality Research in Chinese Medicine Institute of Chinese Medical Sciences University of Macau Macau China
| | - Florina Buleu
- Centre for Interdisciplinary Research & Department of Cardiology University of Medicine and Pharmacy Victor Babes Timisoara Romania
| | - Ana Pah
- Centre for Interdisciplinary Research & Department of Cardiology University of Medicine and Pharmacy Victor Babes Timisoara Romania
| | - Vladiana Turi
- Centre for Interdisciplinary Research & Department of Cardiology University of Medicine and Pharmacy Victor Babes Timisoara Romania
| | - Georgiana Damian
- Centre for Interdisciplinary Research & Department of Cardiology University of Medicine and Pharmacy Victor Babes Timisoara Romania
| | - Simona Dragan
- Centre for Interdisciplinary Research & Department of Cardiology University of Medicine and Pharmacy Victor Babes Timisoara Romania
| | - Merve Tomas
- Faculty of Engineering and Natural Sciences Food Engineering Department Istanbul Sabahattin Zaim University Istanbul Turkey
| | - Washim Khan
- National Center for Natural Products Research School of Pharmacy The University of Mississippi, University Mississippi
| | - Mingfu Wang
- School of Biological Sciences The University of Hong Kong Pokfulam Hong Kong
| | - Dominique Delmas
- INSERM U866 Research Center Université de Bourgogne Franche‐Comté Dijon France
- INSERM Research Center U1231 – Cancer and Adaptive Immune Response Team Bioactive Molecules and Health Research Group Dijon France
- Centre Anticancéreux Georges François Leclerc Center Dijon France
| | - Maria Puy Portillo
- Nutrition and Obesity Group Department of Nutrition and Food Science Faculty of Pharmacy and Lucio Lascaray Research Institute University of País Vasco (UPV/EHU) Vitoria‐Gasteiz Spain
- CIBEROBN Physiopathology of Obesity and Nutrition Institute of Health Carlos III (ISCIII) Vitoria‐Gasteiz Spain
| | - Parsa Dar
- State Key Laboratory of Quality Research in Chinese Medicine Institute of Chinese Medical Sciences University of Macau Macau China
| | - Lei Chen
- College of Food Science Fujian Agriculture and Forestry University Fuzhou China
| | - Jianbo Xiao
- State Key Laboratory of Quality Research in Chinese Medicine Institute of Chinese Medical Sciences University of Macau Macau China
| |
Collapse
|
25
|
Exploring the Comparative Efficacy of Metformin and Resveratrol in the Management of Diabetes-associated Complications: A Systematic Review of Preclinical Studies. Nutrients 2020; 12:nu12030739. [PMID: 32168855 PMCID: PMC7146424 DOI: 10.3390/nu12030739] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 03/03/2020] [Accepted: 03/05/2020] [Indexed: 02/07/2023] Open
Abstract
Food-derived bioactive compounds such as resveratrol are increasingly explored for their protective effects against metabolic complications. Evidence supports the strong antioxidant properties and therapeutic effects of resveratrol in managing diabetes and its associated complications. However, evidence informing on the comparative or combination effects of this natural compound with an accomplished and well-characterized antidiabetic agent like metformin has not been revised. Thus, we conducted a comprehensive systematic search of the major electronic databases which included MEDLINE, Cochrane Library, and EMBASE. The cumulative evidence strongly supports the comparative effects of metformin and resveratrol in ameliorating diabetes-associated complications in preclinical settings. In particular, both compounds showed strong ameliorative effects against hyperglycemia, dyslipidemia, insulin resistance, a pro-inflammatory response, and lipid peroxidation in various experimental models of diabetes. Enhancing intracellular antioxidant capacity in addition to activating NAD-dependent deacetylase sirtuin-1 (SIRT1) and AMP-activated protein kinase (AMPK) are the prime mechanisms involved in the therapeutic effects of these compounds. Of interest, preclinical evidence also demonstrates that the combination treatment with these compounds may have a greater efficacy in protecting against diabetes. Thus, confirmation of such evidence in well-organized clinical trials remains crucial to uncover novel therapeutic strategies to manage diabetes and its linked complications.
Collapse
|
26
|
Rezaei Farimani A, Goodarzi MT, Saidijam M, Yadegarazari R, Zarei S, Asadi S. Effect of resveratrol on SNARE proteins expression and insulin resistance in skeletal muscle of diabetic rats. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2020; 22:1408-1414. [PMID: 32133058 PMCID: PMC7043870 DOI: 10.22038/ijbms.2019.13988] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Objective(s): Soluble N-ethylmaleimide-sensitive factor attachment protein receptor (SNARE) complex proteins are involved in membrane trafficking. The expression of isoforms of SNAP-23, syntaxin-4, and VAMP-2 is significantly done in skeletal muscles; they control GLUT4 trafficking. It is believed that type 2 diabetes could be caused by the modifications in the expression of SNARE complex proteins. The purpose of this study was to evaluate the effect of resveratrol on the expression of these proteins in type 2 diabetes. Materials and Methods: Forty male Wistar rats were selected. Streptozotocin and nicotinamide were applied for the induction of type 2 diabetes. The animals were divided into five groups. Healthy and diabetic groups were set as control; resveratrol (1, 5, and 10 mg/kg body weight) was applied to treat the three groups of diabetic rats for 30 days. Real-time qRT-PCR was applied to evaluate the expression of SNARE complex proteins. Results: There is a link between diabetes and insulin resistance and up-regulation of SNARE proteins expression. Resveratrol improved hyperglycemia and insulin resistance along with a non-significant reduction in the expression of SNARE proteins. Conclusion: Increased expression of SNARE proteins was possibly a compensatory mechanism in response to insulin resistance in the skeletal muscles of diabetic rats. Resveratrol non-significantly reduced the expression of SNARE proteins by enhancing insulin sensitivity, where this effect was dose-dependent. Thus, higher doses of resveratrol and longer intervention periods could probably be more effective. Another molecular mechanism of the anti-diabetic properties of resveratrol was identified with an effect on the expression of SNARE proteins.
Collapse
Affiliation(s)
- Azam Rezaei Farimani
- Noncommunicable Diseases Research Center, Neyshabur University of Medical Sciences, Neyshabur, Iran.,Department of Biochemistry, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Mohammad Taghi Goodarzi
- Research Center for Molecular Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Massoud Saidijam
- Research Center for Molecular Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Reza Yadegarazari
- Department of Molecular Medicine and Genetics, Medical School, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Sadegh Zarei
- Department of Clinical Biochemistry, School of Medicine, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
| | - Soheila Asadi
- Department of Clinical Biochemistry, Facultyl of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| |
Collapse
|
27
|
Huang DD, Shi G, Jiang Y, Yao C, Zhu C. A review on the potential of Resveratrol in prevention and therapy of diabetes and diabetic complications. Biomed Pharmacother 2020; 125:109767. [PMID: 32058210 DOI: 10.1016/j.biopha.2019.109767] [Citation(s) in RCA: 107] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 11/18/2019] [Accepted: 11/29/2019] [Indexed: 02/08/2023] Open
Abstract
Diabetes mellitus (DM) is a major world health problem and one of the most studied diseases, which are highly prevalent in the whole world, it is frequently associated with severe clinical complications, such as diabetic cardiomyopathy, nephropathy, retinopathy, neuropathy etc. Scientific research is continuously casting about for new monomer molecules from Chinese herbal medicine that could be invoked as candidate drugs for fighting against diabetes and its complications. Resveratrol (RES), a polyphenol phytoalexin, possesses diverse biochemical and physiological actions, including antiplatelet, estrogenic, and anti-inflammatory properties. It is recently gaining scientific interest for RES in controlling blood sugar and fighting against diabetes and its complications properties in various types of diabetic models. These beneficial effects seem to be due to the multiple actions of RES on cellular functions, which make RES become a promising molecule for the treatment of diabetes and diabetic complications. Here, we review the mechanism of action and potential therapeutic use of RES in prevention and mitigation of these diseases in recent ten years to provide a reference for further research and development of RES.
Collapse
Affiliation(s)
- Dan-Dan Huang
- Department of Pharmacy, The Second Affiliated Hospital of Fujian Medical University, Fujian, 362000, China
| | - Guangjiang Shi
- School of pharmacy, China Pharmaceutical University, Nanjing, 211198, China
| | - Yaping Jiang
- School of Pharmacology, Ningxia Hui Medicine Modern Engineering Research Center and Collaborative Innovation Center, Ningxia Medical University, Yinchuan, 750004, China
| | - Chao Yao
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease, Center for New Drug Safety Evaluation and Research, China Pharmaceutical University, Nanjing, 211198, China
| | - Chuanlin Zhu
- Department of Laboratory Medicine, Chongqing Hospital of Traditional Chinese Medicine, Chongqing, 400021, China.
| |
Collapse
|
28
|
D Avila LSP, de Oliveira KA, de Abreu ES, Vasconcelos RP, Nascimento JDF, Bezerra Pontes EO, Rickli S, Coelho de Souza AN, Leal Cardoso JH, Silveira LR, Carneiro EM, de Carvalho DP, Torres Leal FL, de Oliveira AC. Hypoglycaemic effect of resveratrol in streptozotocin-induced diabetic rats is impaired when supplemented in association with leucine. Int J Food Sci Nutr 2019; 71:529-539. [PMID: 31694434 DOI: 10.1080/09637486.2019.1687660] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Studies have shown synergistic and independent effects of leucine and resveratrol (RSV) as possible therapeutic agents to ameliorate metabolic disorders. Thus, the objective of this study was to investigate the effects of supplementation with leucine and RSV, alone and in combination, on metabolic changes in white adipose tissue of neonatally STZ-induced diabetic rats. After weaning, the rats were treated with trans-resveratrol (0.6 mg/kg/dose) and/or leucine (1.35 mg/kg/dose) administered orally. The animals were euthanized at age 16 weeks for blood analyses. Subcutaneous (SC), periepididymal (PE) and retroperitoneal (RP) fat pads were weighed. Adipocytes from PE and RP pads were isolated for morphometric analysis. Long-term supplementation with RSV promoted adiposity recovery, prevented hypoinsulinemia and improved the metabolic profile of the diabetic rats. However, some of these effects were impaired when RSV was associated with leucine. The diabetic rats supplemented with leucine alone showed no significant improvement in metabolic disorders.
Collapse
Affiliation(s)
| | | | - Ewerton Sousa de Abreu
- Superior Institute of Biomedical Sciences, State University of Ceará, Fortaleza, CE, Brazil
| | | | | | | | - Sarah Rickli
- Research Center on Obesity and Comorbidities, Campinas, SP, Brazil
| | | | | | | | | | | | | | | |
Collapse
|
29
|
He J, Wang H, Vijg J. New Insights into Bioactive Compounds of Traditional Chinese Medicines for Insulin Resistance Based on Signaling Pathways. Chem Biodivers 2019; 16:e1900176. [PMID: 31368177 DOI: 10.1002/cbdv.201900176] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Accepted: 07/30/2019] [Indexed: 12/30/2022]
Abstract
Type 2 diabetes is a serious metabolic disease as a long-term threat to human health. Insulin resistance is not only the basis and major feature of type 2 diabetes, but also the main etiology of diseases such as hypertension, hyperlipidemia and coronary heart disease. It has been shown that Traditional Chinese Medicines (TCMs) play an important role in the treatment of type 2 diabetes, through attenuating insulin resistance, whereas the mechanism involved is not yet well understood. Therefore, it is important to elucidate the pharmacological mechanism of these bioactive compounds so that one can pave the way for the modernization of TCMs. In this review, we focus on the recent progresses of some bioactive ingredients from TCMs with different functional groups, which exhibit therapeutic potential for the treatment of diabetic insulin resistance. It is expected that this review can provide new references for developing TCM-derived drugs against diabetes and insulin resistance in the future.
Collapse
Affiliation(s)
- Jian He
- Center for Single-Cell Omics, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, P. R. China
| | - Hui Wang
- Center for Single-Cell Omics, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, P. R. China
| | - Jan Vijg
- Center for Single-Cell Omics, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, P. R. China
| |
Collapse
|
30
|
Santini SJ, Cordone V, Mijit M, Bignotti V, Aimola P, Dolo V, Falone S, Amicarelli F. SIRT1-Dependent Upregulation of Antiglycative Defense in HUVECs Is Essential for Resveratrol Protection against High Glucose Stress. Antioxidants (Basel) 2019; 8:antiox8090346. [PMID: 31480513 PMCID: PMC6770647 DOI: 10.3390/antiox8090346] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 08/09/2019] [Accepted: 08/26/2019] [Indexed: 12/19/2022] Open
Abstract
Uncontrolled accumulation of methylglyoxal (MG) and reactive oxygen species (ROS) occurs in hyperglycemia-induced endothelial dysfunction associated with diabetes. Resveratrol (RSV) protects the endothelium upon high glucose (HG); however, the mechanisms underlying such protective effects are still debated. Here we identified key molecular players involved in the glycative/oxidative perturbations occurring in endothelial cells exposed to HG. In addition, we determined whether RSV essentially required SIRT1 to trigger adaptive responses in HG-challenged endothelial cells. We used primary human umbilical vein endothelial cells (HUVECs) undergoing a 24-h treatment with HG, with or without RSV and EX527 (i.e., SIRT1 inhibitor). We found that HG-induced glycative stress (GS) and oxidative stress (OS), by reducing SIRT1 activity, as well as by diminishing the efficiency of MG- and ROS-targeting protection. RSV totally abolished the HG-dependent cytotoxicity, and this was associated with SIRT1 upregulation, together with increased expression of GLO1, improved ROS-scavenging efficiency, and total suppression of HG-related GS and OS. Interestingly, RSV failed to induce effective response to HG cytotoxicity when EX527 was present, thus suggesting that the upregulation of SIRT1 is essential for RSV to activate the major antiglycative and antioxidative defense and avoid MG- and ROS-dependent molecular damages in HG environment.
Collapse
Affiliation(s)
- Silvano Jr Santini
- Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila 67100, Italy
| | - Valeria Cordone
- Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila 67100, Italy
- Department of Biomedical and Specialist Surgical Sciences, University of Ferrara, Ferrara 44121, Italy
| | - Mahmut Mijit
- Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila 67100, Italy
| | - Virginio Bignotti
- Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila 67100, Italy
| | - Pierpaolo Aimola
- Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila 67100, Italy
| | - Vincenza Dolo
- Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila 67100, Italy
| | - Stefano Falone
- Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila 67100, Italy.
| | - Fernanda Amicarelli
- Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila 67100, Italy.
| |
Collapse
|
31
|
Bashir SO. Concomitant administration of resveratrol and insulin protects against diabetes mellitus type-1-induced renal damage and impaired function via an antioxidant-mediated mechanism and up-regulation of Na +/K +-ATPase. Arch Physiol Biochem 2019; 125:104-113. [PMID: 29436859 DOI: 10.1080/13813455.2018.1437752] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This study investigated if a combination of resveratrol (RES) and insulin could reverse type 1 diabetic mellitus-induced (T1DM) nephropathy and illustrates mechanism of action. Rats were divided into six groups (n = 10/group) as follows: control, control + RES (20 mg/kg), T1DM, T1DM + RES, T1DM + insulin (1 U/g), and T1DM + RES + insulin and treated for eight weeks. While individual administrations of both drugs significantly but partially restored renal function and cortex architectures, combination therapy of both RES and insulin produced the maximum improvements. Mechanism of actions revealed a synergist effect of both drugs due to hypoglycaemic effect of insulin and the ability of both drugs to increase renal cortex antioxidant enzymes activities, inhibit lipid peroxidation, and up-regulate Na+/K+-ATPase, independent of each others. In conclusion, these data suggest the combined therapy with insulin and RES could provide an excellent combined drug therapy against T1DM-induced nephropathy.
Collapse
Affiliation(s)
- Salah O Bashir
- a Department of Physiology, College of Medicine , King Khalid University , Abha , Saudi Arabia
| |
Collapse
|
32
|
Yaribeygi H, Simental‐Mendía LE, Butler AE, Sahebkar A. Protective effects of plant‐derived natural products on renal complications. J Cell Physiol 2018; 234:12161-12172. [DOI: 10.1002/jcp.27950] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 11/19/2018] [Indexed: 12/22/2022]
Affiliation(s)
- Habib Yaribeygi
- Chronic Kidney Disease Research Center Shahid Beheshti University of Medical Sciences Tehran Iran
| | | | | | - Amirhossein Sahebkar
- Biotechnology Research Center Pharmaceutical Technology Institute, Mashhad University of Medical Sciences Mashhad Iran
- Neurogenic Inflammation Research Center Mashhad University of Medical Sciences Mashhad Iran
- School of Pharmacy Mashhad University of Medical Sciences Mashhad Iran
| |
Collapse
|
33
|
Preventative effects of resveratrol and estradiol on streptozotocin-induced diabetes in ovariectomized mice and the related mechanisms. PLoS One 2018; 13:e0204499. [PMID: 30273360 PMCID: PMC6166971 DOI: 10.1371/journal.pone.0204499] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Accepted: 09/10/2018] [Indexed: 12/20/2022] Open
Abstract
Resveratrol, a non-flavonoid polyphenolic compound, is structurally and functionally similar to estrogen and has drawn great attention for its potentially beneficial effects on diabetes. However, it is not known whether it shares the same protective effect against diabetes as estrogen and the underlying mechanisms. The aim of the present study was to investigate the protective effects of phytoestrogen resveratrol and exogenous 17β-estradiol against streptozotocin (STZ)-induced type 1 diabetes. Female mice were ovariectomized (OVX) and chronically injected with different concentrations of resveratrol (0.1, 1 or 10 mg/kg) and 17β-estradiol (0.01, 0.1 or 1 mg/kg) subcutaneously for 4 weeks, and the levels of blood glucose, plasma insulin, plasma antioxidant capacity, the changes of pancreatic islet cells and the expressions of glucose transporter 4 (GLUT4), insulin receptor substrate 1 (IRS-1) and phosphorylation of extracellular signal-regulated kinase (p-ERK) were detected. Resveratrol and 17β-estradiol significantly inhibited the increase of the blood glucose level and the rise of plasma malondialdehyde in STZ-induced diabetic mice, improved the levels of plasma antioxidant capacity and plasma insulin, protected the pancreatic islet cells, and increased the expressions of GLUT4 and IRS-1, but decreased p-ERK expression in skeletal muscle and myocardial tissue. The results suggest that resveratrol or 17β-estradiol shows obvious protection against STZ-induced diabetes in OVX mice, the mechanisms probably involve their ameliorating antioxidant activities and islet function, promoting muscle glucose uptake and inhibiting the expression of p-ERK.
Collapse
|
34
|
Resveratrol Ameliorates Cardiac Dysfunction by Inhibiting Apoptosis via the PI3K/Akt/FoxO3a Pathway in a Rat Model of Diabetic Cardiomyopathy. J Cardiovasc Pharmacol 2018; 70:184-193. [PMID: 28678055 DOI: 10.1097/fjc.0000000000000504] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The aim of this study was to explore the effect and mechanism of action of resveratrol (RSV) on cardiac function in diabetic cardiomyopathy (DCM). Hyperglycemia-induced apoptosis contributes to the pathogenic changes in DCM. RSV treatment inhibited high glucose-induced apoptosis of neonatal rat ventricular myocytes. Additionally, high glucose decreased cell viability, prevented serine-threonine kinase (Akt) and FoxO3a phosphorylation, and suppressed cytoplasmic translocation of FoxO3a. However, these effects of apoptosis were reversed by 10 μM of RSV. The PI3K inhibitor LY294002 abolished the RSV protective effect in vitro. RSV (5 or 50 mg·kg·d orally for 8 weeks) prevented the deterioration of cardiac function and structural cardiomyopathy in a streptozotocin-induced rat model of diabetes and reduced apoptosis in diabetic myocardium. Furthermore, it restored streptozotocin-impaired phosphorylation of Akt and FoxO3a (p-Akt and p-FoxO3a) and suppressed nuclear translocation of FoxO3a in vivo. Together, these data indicate that RSV has therapeutic potential against DCM by inhibiting apoptosis via the PI3K/Akt/FoxO3a pathway.
Collapse
|
35
|
Wu C, Zhang Y, Shen Q, Zhou Z, Liu W, Hua J. Resveratrol changes spermatogonial stem cells (SSCs) activity and ameliorates their loss in busulfan-induced infertile mouse. Oncotarget 2018; 7:82085-82096. [PMID: 27806317 PMCID: PMC5347676 DOI: 10.18632/oncotarget.12990] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Accepted: 10/14/2016] [Indexed: 01/15/2023] Open
Abstract
The decline of quantity and quality of sperm are correlated with the increasing age and some anti-cancer compounds such as busulfan. Previous studies have shown that Resveratrol (Res) inhibits tumorigenesis and metastasis of many cancers including mammary tumor, prostate and pancreatic cancers. It acts as anti-age in mouse and human, however, little is known about its protective effect on aged spermatogonial stem cells (SSCs). Here, we investigated the effects of Res in vitro on SSCs using C18-4 cells and in vivo in busulfan-induced azoospermia mice model. The results showed that Res at different concentrations had different effects on C18-4 cells. Treatment with 2 μM of Res promotes cell proliferation and inhibits apoptosis, but stimulates apoptosis with a higher concentration (20 μM) in C18-4 cells. Using busulfan-induced infertility mice model, we demonstrated that Res (30 mg/kg/d and 100 mg/kg/d) clearly ameliorated SSC loss to recover the spermatogenesis. Taken together, our data suggest that Res might be an approach for therapeutic intervention to promote SSC proliferation and cease SSC loss in azoospermia mice model induced by busulfan.
Collapse
Affiliation(s)
- Chongyang Wu
- College of Veterinary Medicine, Shaanxi Centre of Stem Cells Engineering & Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Ying Zhang
- College of Veterinary Medicine, Shaanxi Centre of Stem Cells Engineering & Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Qiaoyan Shen
- College of Veterinary Medicine, Shaanxi Centre of Stem Cells Engineering & Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Zhe Zhou
- College of Veterinary Medicine, Shaanxi Centre of Stem Cells Engineering & Technology, Northwest A&F University, Yangling, Shaanxi, China
| | | | - Jinlian Hua
- College of Veterinary Medicine, Shaanxi Centre of Stem Cells Engineering & Technology, Northwest A&F University, Yangling, Shaanxi, China
| |
Collapse
|
36
|
Pollack RM, Barzilai N, Anghel V, Kulkarni AS, Golden A, O'Broin P, Sinclair DA, Bonkowski MS, Coleville AJ, Powell D, Kim S, Moaddel R, Stein D, Zhang K, Hawkins M, Crandall JP. Resveratrol Improves Vascular Function and Mitochondrial Number but Not Glucose Metabolism in Older Adults. J Gerontol A Biol Sci Med Sci 2017; 72:1703-1709. [PMID: 28329397 DOI: 10.1093/gerona/glx041] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Accepted: 02/27/2017] [Indexed: 02/04/2023] Open
Abstract
Background Resveratrol, a plant-derived polyphenol, has been reported to improve glucose metabolism and vascular function and to extend life span in animal models, but studies in humans have been inconclusive. Methods In a randomized, double-blind crossover study, we treated older glucose-intolerant adults (n = 30) with resveratrol (2-3 g/daily) or placebo, each for 6 weeks. A standard mixed-meal test was used to assess insulin sensitivity (Matsuda index) and secretion (C-peptide deconvolution) and vascular function by reactive hyperemia peripheral arterial tonometry. Skeletal muscle samples were obtained for gene expression using RNA-Seq analysis and to assess mitochondrial morphology. Results There were no changes in glucose tolerance, insulin sensitivity, weight, blood pressure, or lipid profile following resveratrol treatment. Fasting reactive hyperemia index improved with resveratrol (2.02 ± 0.2 vs 1.76 ± 0.02, p = .002). RNA-Seq analysis yielded 140 differentially expressed transcripts (corrected p-value ≤ .05), predominantly associated with mitochondrial genes and noncoding RNA. Ingenuity Pathway Analysis confirmed that mitochondrial dysfunction (p = 2.77 × 10-12) and oxidative phosphorylation (p = 1.41 × 10-11) were the most significantly perturbed pathways. Mitochondrial number, but not size, was increased. Conclusions Resveratrol treatment of older adults with impaired glucose regulation may have beneficial effects on vascular function, but not glucose metabolism or insulin sensitivity. Changes in gene expression suggest effects similar to those observed with caloric restriction, which has been shown to increase life and health span in animal models, although its significance for humans is uncertain. Future human studies should address the appropriate dose range and low bioavailability of resveratrol.
Collapse
Affiliation(s)
| | - Nir Barzilai
- Albert Einstein College of Medicine, Bronx, New York
| | | | | | - Aaron Golden
- Albert Einstein College of Medicine, Bronx, New York
| | - Pilib O'Broin
- National University of Ireland Galway, Galway, Ireland
| | | | | | | | | | - Sharon Kim
- Albert Einstein College of Medicine, Bronx, New York
| | - Ruin Moaddel
- National Institute on Aging, Baltimore, Maryland
| | - Daniel Stein
- Albert Einstein College of Medicine, Bronx, New York
| | - Kehao Zhang
- Albert Einstein College of Medicine, Bronx, New York
| | | | | |
Collapse
|
37
|
Simas JN, Mendes TB, Paccola CC, Vendramini V, Miraglia SM. Resveratrol attenuates reproductive alterations in type 1 diabetes-induced rats. Int J Exp Pathol 2017; 98:312-328. [PMID: 29285813 PMCID: PMC5826946 DOI: 10.1111/iep.12251] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Accepted: 08/31/2017] [Indexed: 12/11/2022] Open
Abstract
The progression of diabetes mellitus leads to several complications including overproduction of reactive oxygen species and reproductive alterations. As resveratrol (RES) is a powerful anti-oxidant and an anti-apoptotic compound, we hypothesized that side effects of type-1 diabetes (DM1) on male reproduction could be reduced by the RES treatment. Eighty-four prepubertal male rats were distributed into seven groups: sham-control (SC), RES-treated (R), resveratrol-vehicle-treated (RV), diabetic (D), diabetic-insulin-treated (DI), diabetic-RES-treated (DR), diabetic-insulin and RES-treated (DIR). DM1 was induced by a single intraperitoneal streptozotocin (STZ) injection (65 mg/kg) on the 30th day postpartum (dpp). Animals of DR, DIR and R groups received 150 mg/day of RES by gavage for 43 consecutive days (from the 33 to 75 dpp). DI and DIR rats received subcutaneous injections of insulin (1 U/100 g b.w./day) from 5th day after the DM1 induction. The blood glucose level was monitored. At 75 dpp, the euthanasia was performed for morphometric and biometric testicular analyses, spermatic evaluation and hormonal doses. In the D group, the blood glucose level was higher than in the DR, DI and DIR groups. Besides morphometric testicular measurements, testosterone and estradiol doses were lower in D group than in DR and DIR groups; LH dose was also lower than in DR. The preputial separation age was delayed in diabetes-induced groups. The DR and DIR groups showed an improvement in sperm mitochondrial activity, epididymal sperm counts and the frequency of morphologically normal sperms. RES treatment improved glycaemic level, sperm quantitative and qualitative parameters and the hormonal profile in DM1-induced rats and seems to be a good reproductive protector.
Collapse
Affiliation(s)
- Joana Noguères Simas
- Laboratory of Developmental BiologyDepartment of Morphology and GeneticsFederal University of Sao Paulo (UNIFESP)Sao PauloSPBrazil
| | - Talita Biude Mendes
- Laboratory of Developmental BiologyDepartment of Morphology and GeneticsFederal University of Sao Paulo (UNIFESP)Sao PauloSPBrazil
| | - Camila Cicconi Paccola
- Laboratory of Developmental BiologyDepartment of Morphology and GeneticsFederal University of Sao Paulo (UNIFESP)Sao PauloSPBrazil
| | - Vanessa Vendramini
- Laboratory of Developmental BiologyDepartment of Morphology and GeneticsFederal University of Sao Paulo (UNIFESP)Sao PauloSPBrazil
| | - Sandra Maria Miraglia
- Laboratory of Developmental BiologyDepartment of Morphology and GeneticsFederal University of Sao Paulo (UNIFESP)Sao PauloSPBrazil
| |
Collapse
|
38
|
Therapeutic effects of Syzygium mundagam bark methanol extract on type-2 diabetic complications in rats. Biomed Pharmacother 2017; 95:167-174. [PMID: 28843148 DOI: 10.1016/j.biopha.2017.08.061] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Revised: 08/11/2017] [Accepted: 08/11/2017] [Indexed: 11/23/2022] Open
Abstract
Plants are considered as one of the best sources of diabetic therapy. Being a reliable and sustainable medicinal hub, this study directs the use of Syzygium mundagam in exploring the antidiabetic property. Streptozotocin-Nicotinamide (STZ-NA) induced diabetic rats were treated with Syzygium mundagam bark methanol extract (SMBM). Based on acute toxicity study, the doses of the extract were fixed as 100 and 200mg/kg. Glibenclamide was used as reference drug. The blood glucose level and body weight of the rats were monitored for 28days. After the treatment, rats were sacrificed and the blood biochemical, serum and histopathological parameters were analysed. The in vivo antioxidant levels in liver and kidney were also estimated. SMBM extract (200mg/kg) could significantly reduce the blood glucose level from 580.60mg/dL to 237.60mg/dL on day 28. An accelerated reduction in body weight was observed in diabetic control rats and inhibited by the extract during the study. The haematological parameters were normal compared to normal rats. The values of serum parameters like triglycerides, high-density lipoprotein (HDL), cholesterol and very low-density lipoprotein (VLDL) were close to the values of normal rats. After the treatment, Superoxide dismutase (SOD), Glutathione (GSH) and Glutathione reductase (GR) levels in liver and kidney were found accountable for their antioxidant properties during diabetic condition. The degree of protection set by SMBM extract was clear enough in the histopathology of liver, kidney and pancreas. The phenolic compounds studied in SMBM can be related to these activities. This study proves the ability of Syzygium mundagam to combat the diabetic condition and provides an insight on hidden properties of plants which can be utilized as novel drugs for existing disease complications.
Collapse
|
39
|
Resveratrol Improves Glycemic Control in Type 2 Diabetic Obese Mice by Regulating Glucose Transporter Expression in Skeletal Muscle and Liver. Molecules 2017; 22:molecules22071180. [PMID: 28708105 PMCID: PMC6152102 DOI: 10.3390/molecules22071180] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 07/05/2017] [Accepted: 07/06/2017] [Indexed: 01/10/2023] Open
Abstract
Insulin resistance participates in the glycaemic control disruption in type 2 diabetes mellitus (T2DM), by reducing muscle glucose influx and increasing liver glucose efflux. GLUT4 (Slc2a4 gene) and GLUT2 (Slc2a2 gene) proteins play a fundamental role in the muscle and liver glucose fluxes, respectively. Resveratrol is a polyphenol suggested to have an insulin sensitizer effect; however, this effect, and related mechanisms, have not been clearly demonstrated in T2DM. We hypothesized that resveratrol can improve glycaemic control by restoring GLUT4 and GLUT2 expression in muscle and liver. Mice were rendered obese T2DM in adult life by neonatal injection of monosodium glutamate. Then, T2DM mice were treated with resveratrol for 60 days or not. Glycaemic homeostasis, GLUT4, GLUT2, and SIRT1 (sirtuin 1) proteins (Western blotting); Slc2a4, Slc2a2, and Pck1 (key gluconeogenic enzyme codifier) mRNAs (RT-qPCR); and hepatic glucose efflux were analysed. T2DM mice revealed: high plasma concentration of glucose, fructosamine, and insulin; insulin resistance (insulin tolerance test); decreased Slc2a4/GLUT4 content in gastrocnemius and increased Slc2a2/GLUT2 content in liver; and increased Pck1 mRNA and gluconeogenic activity (pyruvate tolerance test) in liver. All alterations were restored by resveratrol treatment. Additionally, in both muscle and liver, resveratrol increased SIRT1 nuclear content, which must participate in gene expression regulations. In sum, the results indisputably reveals that resveratrol improves glycaemic control in T2DM, and that involves an increase in muscle Slc2a4/GLUT4 and a decrease in liver Slc2a2/GLUT2 expression. This study contributes to our understanding how resveratrol might be prescribed for T2DM according to the principles of evidence-based medicine.
Collapse
|
40
|
Abbasi Oshaghi E, Goodarzi MT, Higgins V, Adeli K. Role of resveratrol in the management of insulin resistance and related conditions: Mechanism of action. Crit Rev Clin Lab Sci 2017; 54:267-293. [DOI: 10.1080/10408363.2017.1343274] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Ebrahim Abbasi Oshaghi
- Department of Clinical Biochemistry, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
- Neurophysiology Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Mohammad Taghi Goodarzi
- Department of Clinical Biochemistry, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Victoria Higgins
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
| | - Khosrow Adeli
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
- Department of Biochemistry, University of Toronto, Toronto, ON, Canada
| |
Collapse
|
41
|
Zhang AJ, Rimando AM, Mizuno CS, Mathews ST. α-Glucosidase inhibitory effect of resveratrol and piceatannol. J Nutr Biochem 2017; 47:86-93. [PMID: 28570943 DOI: 10.1016/j.jnutbio.2017.05.008] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Revised: 04/10/2017] [Accepted: 05/16/2017] [Indexed: 01/01/2023]
Abstract
Dietary polyphenols have been shown to inhibit α-glucosidase, an enzyme target of some antidiabetic drugs. Resveratrol, a polyphenol found in grapes and wine, has been reported to inhibit the activity of yeast α-glucosidase. This triggered our interest to synthesize analogs and determine their effect on mammalian α-glucosidase activity. Using either sucrose or maltose as substrate resveratrol, piceatannol and 3'-hydroxypterostilbene showed strong inhibition of mammalian α-glucosidase activity; pinostilbene, cis-desoxyrhapontigenin and trans-desoxyrhapontigenin had moderate inhibition. Compared to acarbose (IC50 3-13 μg/ml), piceatannol and resveratrol inhibited mammalian α-glucosidase to a lesser extent (IC50 14-84 and 111-120 μg/ml, respectively). 3'-Hydroxypterostilbene (IC50 105-302 μg/ml) was 23-35-fold less potent than acarbose. We investigated the effect of piceatannol and resveratrol on postprandial blood glucose response in high-fat-fed C57Bl/6 mice. Animals administered resveratrol (30 mg/kg body weight [BW]) or piceatannol (14 mg/kg BW) 60 min prior to sucrose or starch loading had a delayed absorption of carbohydrates, resulting in significant lowering of postprandial blood glucose concentrations, similar to the antidiabetic drug acarbose, while no significant effect was observed with the glucose-loaded animals. Our studies demonstrate that the dietary polyphenols resveratrol and piceatannol lower postprandial hyperglycemia and indicate that inhibition of intestinal α-glucosidase activity may be a potential mechanism contributing to their antidiabetic property.
Collapse
Affiliation(s)
- Albert J Zhang
- Department of Nutrition and Dietetics, Boshell Diabetes and Metabolic Diseases Research Program, Auburn University, Auburn, AL 36849
| | - Agnes M Rimando
- U.S. Department of Agriculture, Agricultural Research Service, Natural Products Utilization Research Unit, P.O. Box 1848, University, MS 38677
| | - Cassia S Mizuno
- U.S. Department of Agriculture, Agricultural Research Service, Natural Products Utilization Research Unit, P.O. Box 1848, University, MS 38677
| | - Suresh T Mathews
- Department of Nutrition and Dietetics, Boshell Diabetes and Metabolic Diseases Research Program, Auburn University, Auburn, AL 36849.
| |
Collapse
|
42
|
Beidokhti MN, Jäger AK. Review of antidiabetic fruits, vegetables, beverages, oils and spices commonly consumed in the diet. JOURNAL OF ETHNOPHARMACOLOGY 2017; 201:26-41. [PMID: 28257977 DOI: 10.1016/j.jep.2017.02.031] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Revised: 02/02/2017] [Accepted: 02/21/2017] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Type 2 diabetes is the most common type of diabetes and its prevalence is rapidly increasing throughout the world. Modifications of lifestyle such as suitable diet and exercise programs along with pharmacotherapy and education of patients are beneficial therapies for patients with type 2 diabetes. The ethnopharmacological use of herbal medicines, many of them part of our diet as spices, vegetables and fruits, has been developed for the treatment of diabetes due to inexpensiveness, easy availability and few side effects. AIM OF THE STUDY Our aim is to present a review for researchers who are interested in the biologically active dietary plants traditionally utilized in the treatment of diabetes. MATERIALS AND METHODS Information was obtained from a literature search of electronic databases such as Google Scholar, Pubmed, Sci Finder and Cochrane. Common and scientific name of the fruits, vegetables, beverages, oils and spices and the words 'antidiabetic', 'hypoglycemic', 'anti-hyperglycemic', 'type 2 diabetes' were used as keywords for search. RESULTS Certain fruits and vegetables are functional foods and their consumption reduces the incidence of type 2 diabetes. Hypoglycemic effects of fruits and vegetables may be due to their inducing nature on pancreatic β-cells for insulin secretion, or bioactive compounds such as flavonoids, alkaloids and anthocyanins, which act as insulin-like molecules or insulin secretagogues. CONCLUSION This write-up covers hypoglycemic, anti-hyperglycemic and anti-diabetic activities of some dietary fruits, vegetables, beverages, oils and spices and their active hypoglycemic constituents. Including such plant species in the diet might improve management of type 2 diabetes.
Collapse
Affiliation(s)
- Maliheh Najari Beidokhti
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Anna K Jäger
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark.
| |
Collapse
|
43
|
Ethyl acetate fraction of Allium hirtifolium improves functional parameters of isolated hearts of diabetic rats. Anatol J Cardiol 2017; 17:452-459. [PMID: 28344215 PMCID: PMC5477074 DOI: 10.14744/anatoljcardiol.2017.7493] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Objective: Allium hirtifolium (Persian shallot) has a hypoglycemic effect on diabetic animals. The aim of this study was to assess the effect of the ethyl acetate fraction of Allium hirtifolium on the function of isolated hearts of diabetic rats. Methods: The control and diabetic animals were randomly divided into four groups: saline- or extract-treated controls (n=10 and n=6, respectively) and saline- or extract-treated diabetic rats (n=8 and n=9, respectively), which received normal saline or extract for four weeks by daily gavage. The hearts were perfused according to the Langendorff method. Cardiac function parameters, including left ventricular developed pressure (LVDP), heart rate (HR), rate pressure product (RPP; LVDP´HR), and dp/dt were measured. Results The findings of this study showed that in the extract-treated diabetic rats, LVDP (94.5±9.1 mm Hg, mean±SEM), HR (249±15 beats/min), RPP (22732±1246) and +dp/dt (2598±230) at the baseline were significantly higher than those in the saline-treated diabetic animals, (71.5±4.0), (189±6), (13923±984), and (1701±124), respectively. Furthermore, RPP and HR were also significantly higher than the corresponding values obtained in the saline-treated diabetic rats after ischemia. Conclusion Besides blood glucose lowering action, oral administration of the ethyl acetate fraction of Allium hirtifolium significantly improved the baseline and post-ischemic cardiac function parameters in streptozotocin-induced diabetic rats.
Collapse
|
44
|
Huang H, Chen G, Liao D, Zhu Y, Pu R, Xue X. The effects of resveratrol intervention on risk markers of cardiovascular health in overweight and obese subjects: a pooled analysis of randomized controlled trials. Obes Rev 2016; 17:1329-1340. [PMID: 27456934 DOI: 10.1111/obr.12458] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2016] [Revised: 06/29/2016] [Accepted: 06/29/2016] [Indexed: 01/09/2023]
Abstract
BACKGROUND Potential effects of resveratrol consumption on cardiovascular disease risk factors and body weight in overweight/obese adults have not been fully elucidated. Our present analysis was to evaluate the effects of resveratrol consumption on risk markers related to cardiovascular health in overweight/obese Individuals. METHODS Multiple literature databases were systematically searched, and 21 studies were included. Effect sizes were expressed as weighted mean difference (WMD) and 95% confidence interval (CI), and heterogeneity was assessed with the I2 test. Publication bias and subgroup analyses were also performed. RESULTS There were variations in reporting quality of included studies. Resveratrol intervention significantly lowered total cholesterol (WMD, -0.19 mmol/L; 95% CI, -0.32 to -0.06; P = 0.004), systolic blood pressure (WMD, -2.26 mmHg; 95% CI, -4.82 to -0.49; P = 0.02), and fasting glucose (WMD, -0.22 mmol/L; 95% CI, -0.42 to -0.03; P = 0.03). Heterogeneity was noted for these outcomes (35.6%, 38.7% and 71.4%, respectively). Our subgroup analysis showed significant reductions in total cholesterol, systolic blood pressure, diastolic blood pressure, glucose, and insulin in subjects ingesting higher dose of resveratrol (≥300 mg/day). CONCLUSION Our finding provides evidence that daily resveratrol consumption might be a candidate as an adjunct to pharmacological management to better prevent and control cardiovascular disease in overweight/obese individuals.
Collapse
Affiliation(s)
- Haohai Huang
- Department of Clinical Pharmacy, Department of Scientific Research and Education, Dongguan Third People's Hospital, Affiliated Dongguan Shilong People's Hospital of Southern Medical University, Dongguan, Guangdong, China
| | - Guangzhao Chen
- Department of Pharmacy, Guangdong Province Agricultural Reclamation Central Hospital, Zhanjiang, Guangdong, China
| | - Dan Liao
- Department of Gynaecology and Obstetrics, Dongguan Maternal and Child Health Hospital, Dongguan, China
| | - Yongkun Zhu
- Department of Clinical Pharmacy, Department of Scientific Research and Education, Dongguan Third People's Hospital, Affiliated Dongguan Shilong People's Hospital of Southern Medical University, Dongguan, Guangdong, China
| | - Rong Pu
- Department of Clinical Laboratory, Dongguan Third People's Hospital, Affiliated Dongguan Shilong People's Hospital of Southern Medical University, Dongguan, Guangdong, China
| | - Xiaoyan Xue
- Department of Clinical Pharmacy, Department of Scientific Research and Education, Dongguan Third People's Hospital, Affiliated Dongguan Shilong People's Hospital of Southern Medical University, Dongguan, Guangdong, China
| |
Collapse
|
45
|
Yonamine CY, Pinheiro-Machado E, Michalani ML, Freitas HS, Okamoto MM, Corrêa-Giannella ML, Machado UF. Resveratrol improves glycemic control in insulin-treated diabetic rats: participation of the hepatic territory. Nutr Metab (Lond) 2016; 13:44. [PMID: 27366200 PMCID: PMC4928352 DOI: 10.1186/s12986-016-0103-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Accepted: 06/22/2016] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Resveratrol is a natural polyphenol that has been proposed to improve glycemic control in diabetes, by mechanisms that involve improvement in insulin secretion and activity. In type 1 diabetes (T1D), in which insulin therapy is obligatory, resveratrol treatment has never been investigated. The present study aimed to evaluate resveratrol as an adjunctive agent to insulin therapy in a T1D-like experimental model. METHODS Rats were rendered diabetic by streptozotocin (STZ) treatment. Twenty days later, four groups of animals were studied: non-diabetic (ND); diabetic treated with placebo (DP); diabetic treated with insulin (DI) and diabetic treated with insulin plus resveratrol (DIR). After 30 days of treatment, 24-hour urine was collected; then, blood, soleus muscle, proximal small intestine, renal cortex and liver were sampled. Specific glucose transporter proteins were analyzed (Western blotting) in each territory of interest. Solute carrier family 2 member 2 (Slc2a2), phosphoenolpyruvate carboxykinase (Pck1) and glucose-6-phosphatase catalytic subunit (G6pc) mRNAs (qPCR), glycogen storage and sirtuin 1 (SIRT1) activity were analyzed in liver. RESULTS Diabetes induction increased blood glucose, plasma fructosamine concentrations, and glycosuria. Insulin therapy partially recovered the glycemic control; however, resveratrol as adjunctive therapy additionally improved glycemic control and restored plasma fructosamine concentration to values of non-diabetic rats. Resveratrol did not alter the expression of the glucose transporters GLUT2 and SGLT1 in the intestine, GLUT2 and SGLT2 in kidney and GLUT4 in soleus, suggesting that fluxes of glucose in these territories were unaltered. Differently, in liver, resveratrol promoted a reduction in Slc2a2, Pck1, and G6pc mRNAs, as well as in GLUT2 protein (P < 0.05, DIR vs. DI); besides, it increased (P < 0.01, DIR vs. DI) the hepatic glycogen content, and SIRT1 protein. CONCLUSIONS Resveratrol is able to improve glycemic control in insulin-treated T1D-like rats. This effect seems not to involve changes in glucose fluxes in the small intestine, renal proximal tubule, and soleus skeletal muscle; but to be related to several changes in the liver, where downregulation of Slc2a2/GLUT2, Pck1, and G6pc expression was observed, favoring reduction of glucose production and efflux. Besides, resveratrol increased SIRT1 nuclear protein content in liver, which may be related to the observed gene expression regulations.
Collapse
Affiliation(s)
- Caio Yogi Yonamine
- />Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, Av. Prof. Lineu Prestes, 1524, 05508-000 São Paulo, SP Brazil
| | - Erika Pinheiro-Machado
- />Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, Av. Prof. Lineu Prestes, 1524, 05508-000 São Paulo, SP Brazil
| | - Maria Luiza Michalani
- />Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, Av. Prof. Lineu Prestes, 1524, 05508-000 São Paulo, SP Brazil
| | - Helayne Soares Freitas
- />Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, Av. Prof. Lineu Prestes, 1524, 05508-000 São Paulo, SP Brazil
| | - Maristela Mitiko Okamoto
- />Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, Av. Prof. Lineu Prestes, 1524, 05508-000 São Paulo, SP Brazil
| | - Maria Lucia Corrêa-Giannella
- />Laboratory of Medical Investigation 18 (LIM-18) and Cell and Molecular Therapy Center (NUCEL), Medical School, University of São Paulo, São Paulo, Brazil
| | - Ubiratan Fabres Machado
- />Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, Av. Prof. Lineu Prestes, 1524, 05508-000 São Paulo, SP Brazil
| |
Collapse
|
46
|
Chandran R, Parimelazhagan T, Shanmugam S, Thankarajan S. Antidiabetic activity of Syzygium calophyllifolium in Streptozotocin-Nicotinamide induced Type-2 diabetic rats. Biomed Pharmacother 2016; 82:547-54. [PMID: 27470395 DOI: 10.1016/j.biopha.2016.05.036] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 05/23/2016] [Accepted: 05/23/2016] [Indexed: 01/14/2023] Open
Abstract
The study was initiated to determine the antidaibetic activity of Syzygium calophyllifolium in Streptozotocin-Nicotinamide (STZ-NA) induced diabetic rats. The rats were treated with 100 and 200mg/kg of the Syzygium calophyllifolium bark methanol extract (SCBM) and compared with the diabetic, normal and standard glibenclamide groups. The blood glucose level and body weight of the rats in different groups were monitored at regular intervals. The serum, blood biochemical and histopathological parameters of liver, kidney and pancreas were also analyzed. In vivo antioxidants like SOD, CAT, GST, GSH and GR levels were estimated in liver and kidney. SCBM (100mg/kg) extract could reduce the blood glucose level from the 15th day itself (213.67mg/dL) and the best reduction was observed till the end of the study with 259.25mg/dL (200mg/kg). Initial decrease in body weight was recovered after drug treatment and an increase in body weight was observed on the 4th week. The haematological parameters like total haemoglobin, packed cell volume percentage, total WBC and RBC content were found normal compared to that of normal untreated rats. Glibenclamide was also equally effective. The higher dose of SCBM extract could normalize the triglycerides, HDL, cholesterol and VLDL constituents in blood serum to the levels almost similar to that of normal rats. The results of the in vivo antioxidant levels showed that there are no significant difference in SOD, GSH and GR levels in all the groups compared to the normal control. SCBM and SMBM at 200mg/kg dose were much effective over the lower dose. The histology revealed that SCBM 200mg/kg could protect the cellular architecture of liver kidney and pancreas. The results from the study confirm ethnopharmacological significance of the plant and could be taken further for the development of an effective pharmaceutical drug against diabetes.
Collapse
Affiliation(s)
- Rahul Chandran
- Bioprospecting Laboratory, Department of botany, Bharathiar University, Tamil Nadu, Coimbatore, India
| | - Thangaraj Parimelazhagan
- Bioprospecting Laboratory, Department of botany, Bharathiar University, Tamil Nadu, Coimbatore, India.
| | - Saravanan Shanmugam
- Department of Pharmacy, Federal University of Sergipe, Aracaju, Sergipe, Brazil
| | - Sajeesh Thankarajan
- Bioprospecting Laboratory, Department of botany, Bharathiar University, Tamil Nadu, Coimbatore, India
| |
Collapse
|
47
|
Ma L, Fu R, Duan Z, Lu J, Gao J, Tian L, Lv Z, Chen Z, Han J, Jia L, Wang L. Sirt1 is essential for resveratrol enhancement of hypoxia-induced autophagy in the type 2 diabetic nephropathy rat. Pathol Res Pract 2016; 212:310-8. [DOI: 10.1016/j.prp.2016.02.001] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2015] [Revised: 01/18/2016] [Accepted: 02/01/2016] [Indexed: 01/08/2023]
|
48
|
Stringer DM, Zahradka P, Taylor CG. Glucose transporters: cellular links to hyperglycemia in insulin resistance and diabetes. Nutr Rev 2016; 73:140-54. [PMID: 26024537 DOI: 10.1093/nutrit/nuu012] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Abnormal expression and/or function of mammalian hexose transporters contribute to the hallmark hyperglycemia of diabetes. Due to different roles in glucose handling, various organ systems possess specific transporters that may be affected during the diabetic state. Diabetes has been associated with higher rates of intestinal glucose transport, paralleled by increased expression of both active and facilitative transporters and a shift in the location of transporters within the enterocyte, events that occur independent of intestinal hyperplasia and hyperglycemia. Peripheral tissues also exhibit deregulated glucose transport in the diabetic state, most notably defective translocation of transporters to the plasma membrane and reduced capacity to clear glucose from the bloodstream. Expression of renal active and facilitative glucose transporters increases as a result of diabetes, leading to elevated rates of glucose reabsorption. However, this may be a natural response designed to combat elevated blood glucose concentrations and not necessarily a direct effect of insulin deficiency. Functional foods and nutraceuticals, by modulation of glucose transporter activity, represent a potential dietary tool to aid in the management of hyperglycemia and diabetes.
Collapse
Affiliation(s)
- Danielle M Stringer
- D.M. Stringer was with the Department of Human Nutritional Sciences, University of Manitoba, and the Canadian Centre for Agri-Food Research in Health and Medicine, St. Boniface Hospital Research Centre, Winnipeg, MB, Canada at the time of manuscript preparation. C.G. Taylor is with the Department of Human Nutritional Sciences, University of Manitoba; the Department of Physiology, University of Manitoba; and the Canadian Centre for Agri-Food Research in Health and Medicine, St. Boniface Hospital Research Centre, Winnipeg, Manitoba, Canada. P. Zahradka is with the Department of Human Nutritional Sciences, University of Manitoba; the Department of Physiology, University of Manitoba; and the Canadian Centre for Agri-Food Research in Health and Medicine, St. Boniface Hospital Research Centre, Winnipeg, Manitoba, Canada.
| | - Peter Zahradka
- D.M. Stringer was with the Department of Human Nutritional Sciences, University of Manitoba, and the Canadian Centre for Agri-Food Research in Health and Medicine, St. Boniface Hospital Research Centre, Winnipeg, MB, Canada at the time of manuscript preparation. C.G. Taylor is with the Department of Human Nutritional Sciences, University of Manitoba; the Department of Physiology, University of Manitoba; and the Canadian Centre for Agri-Food Research in Health and Medicine, St. Boniface Hospital Research Centre, Winnipeg, Manitoba, Canada. P. Zahradka is with the Department of Human Nutritional Sciences, University of Manitoba; the Department of Physiology, University of Manitoba; and the Canadian Centre for Agri-Food Research in Health and Medicine, St. Boniface Hospital Research Centre, Winnipeg, Manitoba, Canada
| | - Carla G Taylor
- D.M. Stringer was with the Department of Human Nutritional Sciences, University of Manitoba, and the Canadian Centre for Agri-Food Research in Health and Medicine, St. Boniface Hospital Research Centre, Winnipeg, MB, Canada at the time of manuscript preparation. C.G. Taylor is with the Department of Human Nutritional Sciences, University of Manitoba; the Department of Physiology, University of Manitoba; and the Canadian Centre for Agri-Food Research in Health and Medicine, St. Boniface Hospital Research Centre, Winnipeg, Manitoba, Canada. P. Zahradka is with the Department of Human Nutritional Sciences, University of Manitoba; the Department of Physiology, University of Manitoba; and the Canadian Centre for Agri-Food Research in Health and Medicine, St. Boniface Hospital Research Centre, Winnipeg, Manitoba, Canada
| |
Collapse
|
49
|
Oritani Y, Okitsu T, Nishimura E, Sai M, Ito T, Takeuchi S. Enhanced glucose tolerance by intravascularly administered piceatannol in freely moving healthy rats. Biochem Biophys Res Commun 2016; 470:753-758. [PMID: 26773506 DOI: 10.1016/j.bbrc.2016.01.018] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2015] [Accepted: 01/05/2016] [Indexed: 12/17/2022]
Abstract
Piceatannol is a phytochemical in the seeds of passion fruit that has a hypoglycemic effect when orally administered. To elucidate the contribution of intact and metabolites of piceatannol after gastro-intestinal absorption to hypoglycemic effect, we examined the influence of piceatannol and isorhapontigenin on blood glucose concentrations during fasting and glucose tolerance tests by administering them intravascularly to freely moving healthy rats. We found that intravascularly administered piceatannol reduced the blood glucose concentrations during both fasting and glucose tolerance tests, but isorhapontigenin did not during either of them. Furthermore, we found that piceatannol increased the insulinogenic index during glucose tolerance tests and that piceatannol had no influence on insulin sensitivity by performing hyperinsulinemic euglycemic clamping tests. These results suggest that piceatannol orally intaken may enhance glucose tolerance by the effect of intact piceatannol through enhanced early-phase secretion of insulin. Therefore, oral intake of piceatannol might contribute to proper control of postprandial glycemic excursions in healthy subjects.
Collapse
Affiliation(s)
- Yukihiro Oritani
- Health Science Research Center, Morinaga & Co., Ltd., 2-1-1 Shimosueyoshi, Tsurumi-ku, Yokohama 230-8504, Japan
| | - Teru Okitsu
- Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505, Japan.
| | - Eisaku Nishimura
- Health Science Research Center, Morinaga & Co., Ltd., 2-1-1 Shimosueyoshi, Tsurumi-ku, Yokohama 230-8504, Japan
| | - Masahiko Sai
- Health Science Research Center, Morinaga & Co., Ltd., 2-1-1 Shimosueyoshi, Tsurumi-ku, Yokohama 230-8504, Japan
| | - Tatsuhiko Ito
- Health Science Research Center, Morinaga & Co., Ltd., 2-1-1 Shimosueyoshi, Tsurumi-ku, Yokohama 230-8504, Japan
| | - Shoji Takeuchi
- Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505, Japan.
| |
Collapse
|
50
|
Sung MM, Hamza SM, Dyck JRB. Myocardial metabolism in diabetic cardiomyopathy: potential therapeutic targets. Antioxid Redox Signal 2015; 22:1606-30. [PMID: 25808033 DOI: 10.1089/ars.2015.6305] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
SIGNIFICANCE Cardiovascular complications in diabetes are particularly serious and represent the primary cause of morbidity and mortality in diabetic patients. Despite early observations of cardiac dysfunction in diabetic humans, cardiomyopathy unique to diabetes has only recently been recognized. RECENT ADVANCES Research has focused on understanding the pathogenic mechanisms underlying the initiation and development of diabetic cardiomyopathy. Emerging data highlight the importance of altered mitochondrial function as a major contributor to cardiac dysfunction in diabetes. Mitochondrial dysfunction occurs by several mechanisms involving altered cardiac substrate metabolism, lipotoxicity, impaired cardiac insulin and glucose homeostasis, impaired cellular and mitochondrial calcium handling, oxidative stress, and mitochondrial uncoupling. CRITICAL ISSUES Currently, treatment is not specifically tailored for diabetic patients with cardiac dysfunction. Given the multifactorial development and progression of diabetic cardiomyopathy, traditional treatments such as anti-diabetic agents, as well as cellular and mitochondrial fatty acid uptake inhibitors aimed at shifting the balance of cardiac metabolism from utilizing fat to glucose may not adequately target all aspects of this condition. Thus, an alternative treatment such as resveratrol, which targets multiple facets of diabetes, may represent a safe and promising supplement to currently recommended clinical therapy and lifestyle changes. FUTURE DIRECTIONS Elucidation of the mechanisms underlying the initiation and progression of diabetic cardiomyopathy is essential for development of effective and targeted treatment strategies. Of particular interest is the investigation of alternative therapies such as resveratrol, which can function as both preventative and mitigating agents in the management of diabetic cardiomyopathy.
Collapse
Affiliation(s)
- Miranda M Sung
- Department of Pediatrics, Cardiovascular Research Centre, University of Alberta, Edmonton, Canada
| | - Shereen M Hamza
- Department of Pediatrics, Cardiovascular Research Centre, University of Alberta, Edmonton, Canada
| | - Jason R B Dyck
- Department of Pediatrics, Cardiovascular Research Centre, University of Alberta, Edmonton, Canada
| |
Collapse
|