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Arif A, Sultan MT, Nazir F, Ahmad K, Kashif M, Ahmad MM, Shehzad FK, Nazir MA, Mushtaq S, Khalid MU, Noman AM, Raza H, Israr M, Sohail H, Rocha JM. Exploring the therapeutic potential of Caralluma fimbriata for antioxidant and diabetes management: a 28-day rat model study. Toxicol Res (Camb) 2024; 13:tfae094. [PMID: 38957782 PMCID: PMC11214972 DOI: 10.1093/toxres/tfae094] [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: 04/17/2024] [Revised: 05/29/2024] [Accepted: 06/14/2024] [Indexed: 07/04/2024] Open
Abstract
This study evaluated the anti-oxidant and anti-diabetic potential of Caralluma fimbriata (CF) in 28-days rat modelling trial. Diabetes is a chronic disorder characterized by elevated blood glucose levels and insulin resistance and cause microvascular and macrovascular issues. Caralluma fimbriata was evaluated for its nutritional composition along with anti-oxidant potential of CF powder (CFP) and CF extract (CFE) using total phenolic contents (TPC), 2,2-diphenyl-1-picrylhydrazyl (DPPH) and ferric ion reducing antioxidant power (FRAP) assays. Furthermore, anti-diabetic potential was computed by dividing rats into four groups of 5 individuals each. Rats of Group I was non-diabetic and no supplementation was given while rats of group II were diabetic and no supplementation was given. While group III and group IV rats were diabetic and received CFP and CFE supplementation respectively. CF powder's TPC, and DPPH and FRAP activity were observed maximum at 44.17 ± 0.006 (μgFe/g) in water, 68.75 ± 0.49 (μgFe/g) in acetone and 800.81 ± 0.99 (μgFe/g) in hexane. Supplementation of CFP and CFE reduced blood glucose effectively i.e. (125.00 ± 4.04 and 121.00 ± 4.49 mg/dL, respectively). Moreover, the consumption of C. fimbriata can be helpful in the management of diabetes mellitus due to its glucose lowering potential, anorexic effects, anti-oxidant potential and α-amylase inhibition.
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Affiliation(s)
- Aleena Arif
- Department of Human Nutrition, Faculty of Food Sciences and Nutrition, Bahauddin Zakariya University, Multan 60800, Pakistan
| | - M Tauseef Sultan
- Department of Human Nutrition, Faculty of Food Sciences and Nutrition, Bahauddin Zakariya University, Multan 60800, Pakistan
| | - Fahid Nazir
- Department of Nutritional Sciences, Knowledge Unit of Health Sciences, University of Management and Technology, Sialkot Campus, Sialkot 51310, Pakistan
| | - Khalil Ahmad
- Department of Chemistry, Emerson University Multan (EUM), Multan 60000, Pakistan
| | - Muhammad Kashif
- Department of Chemistry, Emerson University Multan (EUM), Multan 60000, Pakistan
| | - Muhammad Mahboob Ahmad
- Institute of Chemical Sciences, Bahauddin Zakariya University Multan, Multan 60800, Pakistan
| | | | - Muhammad Altaf Nazir
- Institute of Chemistry, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | - Shehla Mushtaq
- Department of Chemistry, University of Management and Technology, Sialkot campus, Sialkot 51310, Pakistan
| | - Muhammad Usman Khalid
- Department of Human Nutrition, Faculty of Food Sciences and Nutrition, Bahauddin Zakariya University, Multan 60800, Pakistan
| | - Ahmad Mujtaba Noman
- Department of Human Nutrition, Faculty of Food Sciences and Nutrition, Bahauddin Zakariya University, Multan 60800, Pakistan
| | - Hassan Raza
- Department of Human Nutrition, Faculty of Food Sciences and Nutrition, Bahauddin Zakariya University, Multan 60800, Pakistan
| | - Muhammad Israr
- Department of Human Nutrition, Faculty of Food Sciences and Nutrition, Bahauddin Zakariya University, Multan 60800, Pakistan
| | - Hira Sohail
- Department of Human Nutrition, Faculty of Food Sciences and Nutrition, Bahauddin Zakariya University, Multan 60800, Pakistan
| | - João Miguel Rocha
- Universidade Católica Portuguesa, CBQF – Centro de Biotecnologia e Química Fina – Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, Porto 4169-005, Portugal
- LEPABE – Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, Porto 4200-465, Portugal
- ALiCE – Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, Porto 4200-465, Portugal
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Thiyagarajan G, Muthukumaran P, Prabhu D, Balasubramanyam M, Baddireddi LS. Syzygium cumini ameliorates high fat diet induced glucose intolerance, insulin resistance, weight gain, hepatic injury and nephrotoxicity through modulation of PTP1B and PPARγ signaling. ENVIRONMENTAL TOXICOLOGY 2024; 39:1086-1098. [PMID: 37815491 DOI: 10.1002/tox.23989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 09/04/2023] [Accepted: 09/21/2023] [Indexed: 10/11/2023]
Abstract
Metabolic disorders are majorly associated with insulin resistance and an impaired glucose tolerance. Since, many of the currently available drugs exhibit adverse effects and are resistant to therapies, natural products are a promising alternate in the alleviation of complex metabolic disorders. In the current study, Syzygium cumini methanolic extract (SCE) was investigated for its anti-diabetic and anti-adipogenic potential using C57BL/6 mice fed on high fat diet (HFD). The HFD fed obese mice were treated with 200 mg/kg SCE and compared with positive controls Metformin, Pioglitazone and Sodium Orthovanadate. The biometabolites in SCE were characterized using Fourier transform infrared and gas chromatography and mass spectroscopy. A reduction in blood glucose levels with improved insulin sensitivity and glucose tolerance was observed in SCE-treated HFD obese mice. Histopathological and biochemical investigations showed a reduction in hepatic injury and nephrotoxicity in SCE-administered HFD mice. Results showed inhibition of PTP1B and an upregulation of IRS1 and PKB-mediated signaling in skeletal muscle. A significant decrease in lipid markers such as TC, TG, LDL-c and VLDL-c levels were observed with increased HDL-c in SCE-treated HFD mice. A significant decrease in weight and adiposity was observed in SCE-administered HFD mice in comparison to controls. This decrease could be due to the partial agonism of PPARγ and an increased expression of adiponectin, an insulin sensitizer. Hence, the dual-modulatory effect of SCE, partly due to the presence of 26% Pyrogallol, could be useful in the management of diabetes and its associated maladies.
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Affiliation(s)
- Gopal Thiyagarajan
- Tissue Culture and Drug Discovery Laboratory, Centre for Food Technology, Department of Biotechnology, Anna University, Chennai, India
- Centre for Laboratory Animal Technology and Research, Sathyabama Institute of Science and Technology, Chennai, India
| | - Padmanaban Muthukumaran
- Tissue Culture and Drug Discovery Laboratory, Centre for Food Technology, Department of Biotechnology, Anna University, Chennai, India
| | - Durai Prabhu
- Department of Cell and Molecular Biology, Madras Diabetes Research Foundation, Chennai, India
| | | | - Lakshmi Subhadra Baddireddi
- Tissue Culture and Drug Discovery Laboratory, Centre for Food Technology, Department of Biotechnology, Anna University, Chennai, India
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3
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Madeswaran A, Mohan S. Neuroprotective effects of terpenoids against streptozotocin-nicotinamide-induced diabetic rats: An in silico, in vitro and in vivo study. Int J Biol Macromol 2023; 247:125817. [PMID: 37455002 DOI: 10.1016/j.ijbiomac.2023.125817] [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: 01/02/2023] [Revised: 07/10/2023] [Accepted: 07/11/2023] [Indexed: 07/18/2023]
Abstract
The present study focused to determine the neuroprotective effects of terpenoids in streptozotocin & nicotinamide-induced type-2 diabetes in rats. The in silico studies were carried out for 68 terpenoids using AutoDock 4.2. The in vitro cholinestrerase, α-amylase enzyme inhibitory assays were perfomed using standard procedures. For in vivo neuroprotective studies, male wistar rats were separated into five groups and each group comprised of six animals. Treatment groups were received low dose and high dose α-Bisabolol 100 and 200 mg/kg respectively, and the standard groups received rivastigmine 2 mg/kg, p.o. and metformin group 100 mg/kg, p.o. for 30 consecutive days. Administration of streptozotocin (45 mg/kg, i.p.) and nicotinamide (110 mg/kg, i.p.)-induced the type 2 diabetes in all groups except the control. The behavioural assessments such as Morris water maze, and open field test were performed and biochemical parameters such as acetylcholinesterase levels and enzymatic antioxidants and reduced glutathione level were estimated from brain homogenates. Treatment of diabetic rats with α-Bisabolol was lowered blood glucose level, improved spatial recognition memory in behavioural assessments in a concentration dependent manner. It can be concluded that α-Bisabolol could act as a potential drug candidate in the management of diabetic Alzheimer's disease.
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Affiliation(s)
- Arumugam Madeswaran
- Department of Pharmacology, Karpagam College of Pharmacy, Affiliated to The Tamil Nadu Dr. MGR Medical University, Coimbatore, Tamil Nadu, India.
| | - Selleppan Mohan
- Karpagam College of Pharmacy, Affiliated to The Tamil Nadu Dr. MGR Medical University, Coimbatore, Tamil Nadu, India
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Asghar A, Sharif A, Awan SJ, Akhtar B, Akhtar MF, Ali S, Shahnaz. "Ficus johannis Boiss. leaves ethanolic extract ameliorate streptozotocin-induced diabetes in rats by upregulating the expressions of GCK, GLUT4, and IGF and downregulating G6P". ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:49108-49124. [PMID: 36773254 DOI: 10.1007/s11356-023-25765-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 02/02/2023] [Indexed: 02/12/2023]
Abstract
The leaves of Ficus johannis Boiss (F. johannis), commonly known as Fig tree, Anjir, and Teen, are used by the folk medicinal practitioners in Iran for controlling hyperglycemia in diabetic patients. This study investigated the pharmacological basis for antidiabetic effect of the ethanolic extract of F. johannis leaves using in vitro and in vivo experimental models. Qualitative screening of phytochemicals, estimation of total phenolic and flavonoid contents, and in vitro antioxidant and α-amylase inhibition assays were performed. Moreover, the High-performance liquid chromatography (HPLC) quantification, acute toxicity, glucose tolerance, and in vivo antidiabetic effect along with the evaluation of gene expressions involved in diabetes mellitus were carried out. Significant quantities of phenolic (71.208 ± 2.89 mgg-1 GAE) and flavonoid (26.38 ± 3.53 mgg-1 QE) were present. Inhibitory concentration (IC50) of the plant extract exhibited an excellent in vitro antioxidant (IC50 = 33.81 µg/mL) and α-amylase (IC50 = 12.18 µg/mL) inhibitory potential. The HPLC analysis confirmed the gallic acid (257.79 mgg-1) as main constituent of the extract followed by kaempferol (22.86 mgg-1), myricetin (0.16 mgg-1), and quercetin (3.22 mgg-1). Ethanolic extract displayed glucose tolerance in normo-glycemic rats. Streptozotocin-induced hyperglycemia declined dose dependently in the extract treated rats with improvement in lipid profile and liver and renal function biomarkers. The F. johannis-treated groups showed an increase in mRNA expressions of glucose transporter 4 (GLUT-4), glucokinase, insulin growth like factor 1 and peroxisomal proliferator activating receptor gamma in pancreas. However, the Glucose-6-phosphatase was downregulated. Present study suggests that the ethanolic extract of F. johannis leaves demonstrates a good anti-diabetic profile by improving insulin sensitivity, GLUT-4 translocation, and carbohydrate metabolism while inhibiting lipogenesis.
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Affiliation(s)
- Afshan Asghar
- Faculty of Pharmacy, The University of Lahore, 1Km- Off Defense Road, Lahore, Pakistan
| | - Ali Sharif
- Department of Pharmacology, Institute of Pharmacy, Faculty of Pharmaceutical and Allied Health Sciences, Lahore College for Women University, Jail Road, Lahore, Pakistan.
| | - Sana Javaid Awan
- Department of Zoology, Kinnaird College for Women Lahore, 1Km- Off Defense Road, Lahore, Pakistan
| | - Bushra Akhtar
- Department of Pharmacy, University of Agriculture, Faisalabad, Pakistan
| | - Muhammad Furqan Akhtar
- Riphah Institute of Pharmaceutical Sciences, Riphah International University, Lahore Campus, Lahore, Pakistan
| | - Sajid Ali
- Department of Chemistry - Ångström Laboratory, Physical Chemistry, Uppsala University, Uppsala, Sweden
| | - Shahnaz
- Department of Chemistry, Lahore College for Women University, Jail Road, Lahore, Pakistan
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Malik M, Sharif A, Hassan SU, Muhammad F, Khan HM, Akhtar B, Saeed M. Amelioration of hyperglycaemia and modulation of pro-inflammatory cytokines by Tamarix gallica fractions in alloxan induced diabetic rats. Arch Physiol Biochem 2022; 128:1666-1675. [PMID: 32654519 DOI: 10.1080/13813455.2020.1788099] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Present study is engrossed in identification of phyto-constituents from aerial part extracts of Tamarix gallica and appraisal of its anti-oxidant, anti-diabetic and anti-inflammatory potential based upon its folktale use. The methanol and n-hexane fractions of aerial parts were analysed using high performance liquid chromatography (HPLC) and gas chromatography-mass spectrometry (GC-MS) respectively. Inhibitory concentration (IC50) showed better results in case of methanolic extract for both in antioxidant (IC50= 15.47 µg/mL) and alpha amylase (IC50=18.75 µg/mL) assays. Significantly higher quantities of phenolic and flavonoid contents were present in methanolic extract. A significant correlation was found to be existed between these contents and IC50 of antioxidant assay. Alloxan induced hyperglycaemia declined along with improvement in lipid profile, C-reactive proteins (CRP), liver function tests (LFTs) and renal function tests (RFTs). Methanolic fraction (500 mg/kg) was also related to significant reduction in levels of inflammatory markers i.e. tumour necrosis factor-alpha, TNF- α (1.28 ± 0.13 g/L) and interleukin-6, IL-6 (98 ± 10.4 pg/L) as observed in diabetic rats. Based upon the above findings, the study suggests that methanolic fraction from aerial parts of the T. gallica has better anti-diabetic profile which might be attributed to its alpha amylase, anti-oxidant and anti-inflammatory potential.
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Affiliation(s)
- Maryam Malik
- Faculty of Pharmacy, The University of Lahore, Lahore, Pakistan
| | - Ali Sharif
- Institute of Pharmacy, Faculty of Pharmaceutical and Allied Health Sciences, Lahore College for Women University, Lahore, Pakistan
| | | | - Faqir Muhammad
- Institute of Physiology and Pharmacology, University of Agriculture, Faisalabad, Pakistan
| | - Humaira Majeed Khan
- Institute of Pharmacy, Faculty of Pharmaceutical and Allied Health Sciences, Lahore College for Women University, Lahore, Pakistan
| | - Bushra Akhtar
- Department of Pharmacy, University of Agriculture, Faisalabad, Pakistan
| | - Myeda Saeed
- Faculty of Pharmacy, The University of Lahore, Lahore, Pakistan
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Yan LJ. The Nicotinamide/Streptozotocin Rodent Model of Type 2 Diabetes: Renal Pathophysiology and Redox Imbalance Features. Biomolecules 2022; 12:biom12091225. [PMID: 36139064 PMCID: PMC9496087 DOI: 10.3390/biom12091225] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 08/30/2022] [Accepted: 08/31/2022] [Indexed: 12/15/2022] Open
Abstract
Diabetic nephropathy (DN) is a common complication of diabetes mellitus. While there has been a great advance in our understanding of the pathogenesis of DN, no effective managements of this chronic kidney disease are currently available. Therefore, continuing to elucidate the underlying biochemical and molecular mechanisms of DN remains a constant need. In this regard, animal models of diabetes are indispensable tools. This review article highlights a widely used rodent model of non-obese type 2 diabetes induced by nicotinamide (NA) and streptozotocin (STZ). The mechanism underlying diabetes induction by combining the two chemicals involves blunting the toxic effect of STZ by NA so that only a percentage of β cells are destroyed and the remaining viable β cells can still respond to glucose stimulation. This NA-STZ animal model, as a platform for the testing of numerous antidiabetic and renoprotective materials, is also discussed. In comparison with other type 2 diabetic animal models, such as high-fat-diet/STZ models and genetically engineered rodent models, the NA-STZ model is non-obese and is less time-consuming and less expensive to create. Given that this unique model mimics certain pathological features of human DN, this model should continue to find its applications in the field of diabetes research.
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Affiliation(s)
- Liang-Jun Yan
- Department of Pharmaceutical Sciences, College of Pharmacy, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
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Uddin ABMN, Hossain F, Reza ASMA, Nasrin MS, Alam AHMK. Traditional uses, pharmacological activities, and phytochemical constituents of the genus Syzygium: A review. Food Sci Nutr 2022; 10:1789-1819. [PMID: 35702283 PMCID: PMC9179155 DOI: 10.1002/fsn3.2797] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 02/04/2022] [Accepted: 02/11/2022] [Indexed: 12/13/2022] Open
Abstract
The genus Syzygium comprises 1200–1800 species that belong to the family of Myrtaceae. Moreover, plants that are belonged to this genus are being used in the traditional system of medicine in Asian countries, especially in China, India, and Bangladesh. The aim of this review is to describe the scientific works and to provide organized information on the available traditional uses, phytochemical constituents, and pharmacological activities of mostly available species of the genus Syzygium in Bangladesh. The information related to genus Syzygium was analytically composed from the scientific databases, including PubMed, Google Scholar, Science Direct, Web of Science, Wiley Online Library, Springer, Research Gate link, published books, and conference proceedings. Bioactive compounds such as flavanone derivatives, ellagic acid derivatives and other polyphenolics, and terpenoids are reported from several species of the genus Syzygium. However, many members of the species of the genus Syzygium need further comprehensive studies regarding phytochemical constituents and mechanism‐based pharmacological activities.
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Affiliation(s)
- A B M Neshar Uddin
- Department of Pharmaceutical Sciences North South University Dhaka Bangladesh.,Department of Pharmacy Faculty of Science and Engineering International Islamic University Chittagong Chittagong Bangladesh
| | - Farhad Hossain
- Department of Pharmacy University of Rajshahi Rajshahi Bangladesh
| | - A S M Ali Reza
- Department of Pharmacy Faculty of Science and Engineering International Islamic University Chittagong Chittagong Bangladesh
| | - Mst Samima Nasrin
- Department of Pharmacy Faculty of Science and Engineering International Islamic University Chittagong Chittagong Bangladesh
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Cai M, Wu C, Jing C, Shen X, He M, Wang L, Guo Q, Yan Y, Yan X, Yang R. Blood Metabolomics Analysis Identifies Differential Serum Metabolites in Elite and Sub-elite Swimmers. Front Physiol 2022; 13:858869. [PMID: 35600307 PMCID: PMC9118345 DOI: 10.3389/fphys.2022.858869] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 03/31/2022] [Indexed: 11/17/2022] Open
Abstract
Objective: Metabolites in body fluids, such as lactate, glucose, and creatinine, have been measured by conventional methods to evaluate physical function and performance or athletic status. The objectives of the current study were to explore the novel metabolite biomarkers in professional swimmers with different competition levels using nuclear magnetic resonance (NMR) metabolomics, and try to establish a model to identify the athletic status or predict the competitive potential. Methods: Serum samples were collected from 103 elite and 84 sub-elite level Chinese professional swimmers, and were profiled by NMR analysis. Results: Out of the thirty-six serum metabolites profiled, ten were associated with the athletic status of swimmers (with p < 0.05). When compared with sub-elite swimmers, elite swimmers had higher levels of high-density lipoprotein (HDL), unsaturated fatty acid, lactic acid, and methanol. Elite swimmers had lower levels of isoleucine, 3-hydroxybutyric acid, acetoacetate, glutamine, glycine, and α-glucose. A model with four metabolites, including HDL, glutamine, methanol, and α-glucose, was established to predict athletic status by adjusting with different covariates. The area under the curve (AUC) of the best model was 0.904 (95% CI: 0.862-0.947), with a sensitivity and specificity of 75.5 and 90.2%, respectively. Conclusion: We have identified ten metabolite biomarkers with differentially expressed levels between elite and sub-elite swimmers, the differences could result from genetic or sports level between the two cohorts. A model with four metabolites has successfully differentiated professional swimmers with different competitive levels.
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Affiliation(s)
- Ming Cai
- Shanghai University of Medicine and Health Sciences Affiliated Zhoupu Hospital, Shanghai, China
- College of Rehabilitation Sciences, Shanghai University of Medicine and Health Sciences, Shanghai, China
| | - Chao Wu
- Foundation of Shanghai Vocational College of Agriculture and Forestry, Shanghai, China
| | - Chen Jing
- Shanghai Research Institute of Sports Science (Shanghai Anti-Doping Center), Shanghai, China
| | - Xunzhang Shen
- College of Rehabilitation Sciences, Shanghai University of Medicine and Health Sciences, Shanghai, China
- Shanghai Research Institute of Sports Science (Shanghai Anti-Doping Center), Shanghai, China
| | - Mian He
- College of Rehabilitation Sciences, Shanghai University of Medicine and Health Sciences, Shanghai, China
| | - Liyan Wang
- College of Rehabilitation Sciences, Shanghai University of Medicine and Health Sciences, Shanghai, China
| | - Qi Guo
- Shanghai University of Medicine and Health Sciences Affiliated Zhoupu Hospital, Shanghai, China
- College of Rehabilitation Sciences, Shanghai University of Medicine and Health Sciences, Shanghai, China
| | - Yan Yan
- School of Life Science, Qufu Normal University, Qufu, China
| | - Xu Yan
- Institute for Health and Sport (iHeS), Victoria University, Melbourne, VIC, Australia
- Australian Institute for Musculoskeletal Science (AIMSS), Melbourne, VIC, Australia
- Department of Medicine - Western Health, The University of Melbourne, Melbourne, VIC, Australia
- *Correspondence: Xu Yan, ; Ruoyu Yang,
| | - Ruoyu Yang
- College of Rehabilitation Sciences, Shanghai University of Medicine and Health Sciences, Shanghai, China
- *Correspondence: Xu Yan, ; Ruoyu Yang,
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Nguyen M, Van Chuyen H, Tran MD, Nguyen Q. Microencapsulation of
Syzygium zeylanicum
(L.)
DC
. extract using spray drying: Effects of wall materials on physicochemical characteristics and biological activities of the microcapsules. J FOOD PROCESS PRES 2022. [DOI: 10.1111/jfpp.16647] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Minh‐Trung Nguyen
- Institute of Biotechnology and Environment Tay Nguyen University, 567 Le Duan, Buon Ma Thuot City, Daklak Province Vietnam
- Faculty of Natural science and Technology Tay Nguyen University 567 Le Duan, Buon Ma Thuot City, Daklak Province Vietnam
| | - Hoang Van Chuyen
- Faculty of Chemical and Food Technology Ho Chi Minh City University of Technology and Education 01 Vo Van Ngan, Thu Duc City Ho Chi Minh City Vietnam
| | - Minh Dinh Tran
- Institute of Biotechnology and Environment Tay Nguyen University, 567 Le Duan, Buon Ma Thuot City, Daklak Province Vietnam
| | - Quang‐Vinh Nguyen
- Institute of Biotechnology and Environment Tay Nguyen University, 567 Le Duan, Buon Ma Thuot City, Daklak Province Vietnam
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α-Glucosidase Inhibitory and Antimicrobial Benzoylphloroglucinols from Garcinia schomburgakiana Fruits: In Vitro and In Silico Studies. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27082574. [PMID: 35458771 PMCID: PMC9032663 DOI: 10.3390/molecules27082574] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 04/11/2022] [Accepted: 04/13/2022] [Indexed: 11/17/2022]
Abstract
α-Glucosidase plays a role in hydrolyzing complex carbohydrates into glucose, which is easily absorbed, causing postprandial hyperglycemia. Inhibition of α-glucosidase is therefore an ideal approach to preventing this condition. A novel polyprenylated benzoylphloroglucinol, which we named schomburgkianone I (1), was isolated from the fruit of Garcinia schomburgkiana, along with an already-reported compound, guttiferone K (2). The structures of the two compounds were determined using NMR and HRESIMS analysis, and comparisons were made with previous studies. Compounds 1 and 2 exhibited potent α-glucosidase inhibition (IC50s of 21.2 and 34.8 µM, respectively), outperforming the acarbose positive control. Compound 1 produced wide zones of inhibition against Staphylococcus aureus and Enterococcus faecium (of 21 and 20 mm, respectively), compared with the 19 and 20 mm zones of compound 2, at a concentration of 50 µg/mL. The MIC value of compound 1 against S. aureus was 13.32 µM. An in silico molecular docking model suggested that both compounds are potent inhibitors of enzyme α-glucosidase and are therefore leading candidates as therapies for diabetes mellitus.
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12
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Liu Z, Qu CY, Li JX, Wang YF, Li W, Wang CZ, Wang DS, Song J, Sun GZ, Yuan CS. Hypoglycemic and Hypolipidemic Effects of Malonyl Ginsenosides from American Ginseng ( Panax quinquefolius L.) on Type 2 Diabetic Mice. ACS OMEGA 2021; 6:33652-33664. [PMID: 34926913 PMCID: PMC8675029 DOI: 10.1021/acsomega.1c04656] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 11/22/2021] [Indexed: 06/14/2023]
Abstract
American ginseng (Panax quinquefolius L.) is popularly consumed as traditional herbal medicine and health food for the treatment of type 2 diabetes mellitus (T2DM). Malonyl ginsenosides (MGR) are the main natural ginsenosides in American ginseng. However, whether the malonyl ginsenosides in P. quinquefolius (PQ-MGR) possess antidiabetic effects has not been explored yet. In this study, the antidiabetic effects and the underlying mechanism of PQ-MGR in high-fat diet/streptozotocin (HFD/STZ)-induced T2DM mice were investigated. The chemical composition was analyzed by high-performance liquid chromatography-electrospray ionization tandem mass spectrometry (HPLC-ESI-MS/MS). Our results showed that 14 malonyl ginsenosides were identified in the PQ-MGR. Among them, the content of m-Rb1 represented about 77.4% of the total malonyl ginsenosides. After a 5-week experiment, the PQ-MGR significantly reduced the fasting blood glucose (FBG), triglyceride (TG), total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), nonesterified fatty acid (NEFA), alanine transaminase (ALT), and aspartate transaminase (AST) levels and improved glucose tolerance and insulin resistance. Furthermore, Western blot analysis demonstrated that the protein expressions of p-PI3K, p-AKT, p-AMPK, p-ACC, PPARγ, and GLUT4 in the liver and skeletal muscle were significantly upregulated after PQ-MGR treatment. In contrast, the protein expressions of p-IRS1 and p-JNK were significantly downregulated. Our results revealed that PQ-MGR could ameliorate glucose and lipid metabolism and insulin resistance in T2DM via regulation of the insulin receptor substrate-1/phosphoinositide3-kinase/protein-kinase B (IRS1/PI3K/Akt) and AMP-activated protein kinase/acetyl-CoA carboxylase (AMPK/ACC) pathways. These findings suggest that PQ-MGR may be used as an antidiabetic candidate drug for T2DM treatment.
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Affiliation(s)
- Zhi Liu
- College
of Chinese Medicinal Materials, Jilin Agricultural
University, Changchun 130118, China
- Institute
of Agricultural Modernization, Jilin Agricultural
University, Changchun 130118, China
| | - Chun-Yuan Qu
- College
of Chinese Medicinal Materials, Jilin Agricultural
University, Changchun 130118, China
| | - Jia-Xin Li
- College
of Chinese Medicinal Materials, Jilin Agricultural
University, Changchun 130118, China
| | - Yan-Fang Wang
- College
of Chinese Medicinal Materials, Jilin Agricultural
University, Changchun 130118, China
| | - Wei Li
- College
of Chinese Medicinal Materials, Jilin Agricultural
University, Changchun 130118, China
| | - Chong-Zhi Wang
- Tang
Center for Herbal Medicine Research and The Pritzker School of Medicine, University of Chicago, Chicago, Illinois 60637, United States
| | - Dong-Sheng Wang
- College
of Chinese Medicinal Materials, Jilin Agricultural
University, Changchun 130118, China
| | - Jia Song
- College
of Chinese Medicinal Materials, Jilin Agricultural
University, Changchun 130118, China
| | - Guang-Zhi Sun
- Institute
of Agricultural Modernization, Jilin Agricultural
University, Changchun 130118, China
| | - Chun-Su Yuan
- Tang
Center for Herbal Medicine Research and The Pritzker School of Medicine, University of Chicago, Chicago, Illinois 60637, United States
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13
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Duong TH, Nguyen HT, Nguyen CH, Tran NMA, Danova A, Tran TMD, Vu-Huynh KL, Musa V, Jutakanoke R, Nguyen NH, Sichaem J. Identification of Highly Potent α-Glucosidase Inhibitors from Artocarpus integer and Molecular Docking Studies. Chem Biodivers 2021; 18:e2100499. [PMID: 34761862 DOI: 10.1002/cbdv.202100499] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 10/21/2021] [Indexed: 11/10/2022]
Abstract
A new natural Diels-Alder adduct (3) was isolated from the leaves and stem bark of Artocarpus integer, along with seventeen known compounds (1, 2, and 4-18). Structural elucidation was conducted using NMR and HR-ESI-MS data, and comparisons were made with previous studies. Deoxyartonin I (3) exhibited the most potent α-glucosidase inhibition (IC50 7.80±0.1 μM), outperforming the acarbose positive control. This was mixed-mode inhibition, as indicated by the intersect in the second quadrant of each respective plot. An in silico molecular docking model and the pharmacokinetic features of 3 suggest that it is a potential inhibitor of enzyme α-glucosidase, and is therefore a lead candidate as a drug against diabetes mellitus.
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Affiliation(s)
- Thuc-Huy Duong
- Department of Chemistry, Ho Chi Minh City University of Education, 280 An Duong Vuong Street, District 5, Ho Chi Minh City, 748342, Vietnam
| | - Huy Truong Nguyen
- Faculty of Pharmacy, Ton Duc Thang University, Ho Chi Minh City, 700000, Vietnam
| | - Chuong Hoang Nguyen
- University of Science, Vietnam National University, Ho Chi Minh City, Vietnam
| | | | - Ade Danova
- Center of Execellent in Natural Products Chemistry, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Thi-Minh-Dinh Tran
- Department of Biology, Ho Chi Minh City University of Education, 280 An Duong Vuong Street, District 5, Ho Chi Minh City, 748342, Vietnam
| | - Kim Long Vu-Huynh
- Faculty of Pharmacy, Ton Duc Thang University, Ho Chi Minh City, 700000, Vietnam
| | - Vassana Musa
- Microbial Biotechnology and Utilization of Natural Products Research Unit (MBUNPRU), Songkhla Rajabhat University, Songkhla, 90000, Thailand
| | - Rumpa Jutakanoke
- Department of Microbiology and Parasitology, Faculty of Medical Science, Naresuan University, Mueang, Phitsanulok, 65000, Thailand
| | - Ngoc-Hong Nguyen
- CirTech Institute, Ho Chi Minh City University of Technology (HUTECH), 475 A Dien Bien Phu Street, Binh Thanh District, Ho Chi Minh City, 700000, Vietnam
| | - Jirapast Sichaem
- Research Unit in Natural Products Chemistry and Bioactivities, Faculty of Science and Technology, Thammasat University Lampang Campus, Lampang, 52190, Thailand
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Effect of co-administration of metformin and extracts of Costus pictus D.Don leaves on alloxan-induced diabetes in rats. J Tradit Complement Med 2021; 12:269-280. [PMID: 35493313 PMCID: PMC9039101 DOI: 10.1016/j.jtcme.2021.08.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 08/07/2021] [Accepted: 08/09/2021] [Indexed: 12/18/2022] Open
Abstract
Background and aim The present study evaluates the antidiabetic effects of aqueous (CPAQ) and methanolic (CPME) extract of Costus pictus D. Don singly and/or in combination with metformin in alloxan-induced diabetic rats. Experimental procedure CPAQ and CPME (400 mg/kg dose), metformin (120 mg/kg) and two different combinations of plant extracts and metformin (200 + 60 mg/kg and 400 mg/kg + 60 mg/kg) were orally given to alloxan-induced diabetic rats for 21 days. At 0, 7, 14, and 21 days, body weight and blood glucose levels were measured. Results and conclusion After 21 days of treatment, biochemical profiling and histopathology analysis were carried out. CPAQ and CPME, when administrated separately, could decrease blood glucose levels (P ≤ 0.05). CPME showed more promising results (P ≤ 0.05) compared to the diabetic control group. Extracts co-administrated with metformin showed dose-dependent significant recovery of hypoglycemic activity of metformin. Fasting blood glucose levels, body weight, protein, and lipid profile of the treatment group were compared to the diabetic and normal control groups. Animal groups co-administered with CPME and metformin showed more significant effects on the recovery of tissue damages. The synergistic effect of plant extracts with metformin has positive effects on all the parameters and enhanced the efficiency and reduction of blood glucose levels. Costus pictus D. Don. Leaves used traditionally in mulching also treats diabetes. Methanolic extract of the plant has potent antihyperglycaemic activity compared to aqueous extract. Simultaneous oral administration of the C. pictus methanolic extract with metformin positively affected the blood-glucose-lowering activity. There was a synergistic effect between standard drugs, Metformin and CPAQ and CPME. C. pictus and metformin have a great influence on the recovery of damaged tissues of the experimental animals.
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Antidiabetic activity of galactomannan from Chinese Sesbania cannabina and its correlation of regulating intestinal microbiota. J Funct Foods 2021. [DOI: 10.1016/j.jff.2021.104530] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
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16
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GC-MS analysis and molecular docking of bioactive compounds of Camellia sinensis and Camellia assamica. Arch Microbiol 2021; 203:2501-2510. [PMID: 33677633 DOI: 10.1007/s00203-021-02209-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 12/22/2020] [Accepted: 02/09/2021] [Indexed: 10/22/2022]
Abstract
The methanol extract of Camellia sinensis (MES) and acetone extract of Camellia assamica (AEA) were subjected to the thin layer chromatography to separate the bioactive compounds. The antimicrobial activity of all the fractions was carried out against pathogenic microorganisms by the agar-well diffusion method. The most effective bioactive fraction of each plant species was analysed by GC-MS. Fraction L of methanol extract of C. sinensis (MES) and fraction 5 of acetone extract of C. assamica (AEA) were found very effective against selected pathogenic strains. GC-MS analysis of this fraction showed the presence of n-heptadecanol-1 (68.63%) in MES and 2',6'dihydroxyacetophenone, bis(trimethylsilyl) (17.58%) in AEA with the highest area. The compounds n-heptadecanol-1 and 2',6'dihydroxyacetophenone, bis(trimethylsilyl) ether were used for docking to analyse its therapeutic potential. The ligand compound n-heptadecanol-1 (HEP) from MES of C. sinensis and 2',6'dihydroxyacetophenone, bis(trimethylsilyl) ether from AEA of C. assamica were docked with the target protein dihydropteoate synthase (DHPS) active sites of Escherichia coli and Staphylococcus aureus active sites via Auto Dock Vina, thereby forecasting the finest binding position of ligands. AutoDock Vina docked results revealed the involvement of binding energy for the establishment of the protein-ligand structure complex, besides generating an interpretation of all apparent molecular interactions accountable for its activity. Further, the protein-ligand complex of MES, EcDHPS + HEP and SaDHPS + HEP exhibiting the best binding affinity were - 4.8 kcal/mol and - 3.6 kcal/mol. The protein-ligand complex of AEA, i.e., EcDHPS + DHA and SaDHPS + DHA exhibited the best binding affinity of - 4.8 kcal/mol and - 4.8 kcal/mol.
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Kumar S, Mittal A, Babu D, Mittal A. Herbal Medicines for Diabetes Management and its Secondary Complications. Curr Diabetes Rev 2021; 17:437-456. [PMID: 33143632 DOI: 10.2174/1573399816666201103143225] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 09/26/2020] [Accepted: 10/08/2020] [Indexed: 11/22/2022]
Abstract
Diabetic Mellitus (DM) is a metabolic disorder that is concerning for people all over the world. DM is caused due to lack of insulin or ineffective production of insulin in the pancreas. A total of 463 million people were reported to have diabetes mellitus in 2019 and this number is predicted to rise up to 578 million by the year 2030 and 700 million by 2045. High blood sugar gives rise to many complications like diabetic retinopathy, diabetic nephropathy, atherosclerosis, hypercoagulability, cardiovascular disease, coronary heart disease, abdominal obesity, hypertension, hyperlipidemia, cerebrovascular disease, coronary artery disease, foot damage, skin complications, Alzheimer's disease, hearing impairment, and depression. These life-threatening complications make diabetes more severe than other diseases. Many synthetic drugs have been developed, but still, a complete cure is not provided by any of the molecules. Continuous use of some synthetic agents causes severe side effects, and thus the demand for non-toxic, affordable drugs still persists. Traditional treatments have been an extremely valued source of medicine all over human history. These are extensively used throughout the world, indicating that herbs are a growing part of modern and high-tech medicines. The World Health Organization (WHO) has listed a total of 21,000 plants, which are used for medicinal purposes around the world. Among them, more than 400 plants are available for the treatment of diabetes. Despite the fact that there are many herbal drugs available for treating diabetes, only a small number of these plants have undergone scientific and medical evaluation to assess their efficacy. Trigonella foenum-graecum, Allium sativum, Caesalpinia bonduc, Ferula assafoetida,etc., are some of the medicinal plants used for antidiabetic therapy. The presence of phenolic compounds, flavonoids, terpenoids, and coumarins is responsible for the antidiabetic nature of the medicinal plants. These constituents have shown a reduction in blood glucose levels. Pycnogenol, acarbose, miglitol, and voglibose are some of the examples of marketed drugs, which are obtained from natural origin and used as antidiabetic drugs. The active principles derived from the plants work through many antidiabetic mechanisms, which include inhibition of α-glucosidase, α-amylase, and protein tyrosine phosphatase 1B activities. One of the major advantages of herbal drugs is the low level of side effects attributed to these medicines, and this attracted various researchers to develop new molecules for the treatment of diabetes. In this review, recent advances in the field of herbal drugs to treat diabetes, prevent secondary complications from arising due to diabetes, and various herbal molecules in different stages of clinical trials will be emphasized upon.
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Affiliation(s)
- Shubham Kumar
- Faculty of Pharmaceutical Sciences, PCTE Group of Institutes, Campus-2, Near Baddowal Cantt. Ferozepur Road, Ludhiana-142021, India
| | - Anu Mittal
- Department of Chemistry, Guru Nanak Dev University College, Patti, Distt. Tarn Taran, India
| | - Dinesh Babu
- Faculty of Pharmacy & Pharmaceutical Sciences, Katz Group-Rexall Centre for Pharmacy and Health Research, University of Alberta, Edmonton, AB, T6G 2E1, Canada
| | - Amit Mittal
- Department of Pharmaceutical Chemistry, School of Pharmaceutical Sciences, Lovely Professional University, Jalandhar-Delhi G.T. Road (NH-1), Phagwara (Punjab) 144411, India
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Curative Effect of Catechin Isolated from Elaeagnus Umbellata Thunb. Berries for Diabetes and Related Complications in Streptozotocin-Induced Diabetic Rats Model. Molecules 2020; 26:molecules26010137. [PMID: 33396845 PMCID: PMC7794731 DOI: 10.3390/molecules26010137] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 12/22/2020] [Accepted: 12/26/2020] [Indexed: 12/18/2022] Open
Abstract
In this study, catechin (CTN) isolated from Elaeagnus umbellata was evaluated for in vitro antioxidant potential and inhibition of carbohydrate digestive enzymes (α-amylase and α-glucosidase). The compound was also tested for its in vivo antidiabetic potential using Sprague-Dawley rats as experimental animals. The effects of various doses of catechin in STZ (Streptozotocin) induced diabetic rats on fasting blood glucose level, body weight, lipid parameters, hepatic enzymes, and renal functions were evaluated using the reported protocols. The CTN exhibited the highest percent antioxidant for free radical scavenging activity against DPPH and ABTS free radicals, and inhibited the activity of carbohydrate digestive enzymes (with percent inhibition values: 79 ± 1.5% α-amylase and 80 ± 1.1% α-glucosidase). Administration CTN and standard glibenclamide significantly decreased the fasting blood glucose level and increased the body weight in STZ-induced diabetic rats. CTN significantly decreased the different lipid parameters, hepatic, and renal function enzyme levels along with Hb1c level in diabetic rats, while significantly increasing the high-density lipoprotein (HDL) level with values comparable to the standard glibenclamide. Further, the altered levels of glutathione and lipid peroxides of liver and kidney tissues were restored (by CTN) to levels similar to the control group. CTN significantly increased the antioxidant enzyme activities, total content of reduced glutathione, and reduced the malondialdehyde (MDA) level in rat liver and kidney tissues homogenates, and also corrected the histopathological abnormalities, suggesting its antioxidant potential.
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Inada AC, Silva GT, da Silva LPR, Alves FM, Filiú WFDO, Asato MA, Junior WHK, Corsino J, Figueiredo PDO, Garcez FR, Garcez WS, da Silva RDNO, dos Santos-Eichler RA, Guimarães RDCA, Freitas KDC, Hiane PA. Therapeutic Effects of Morinda citrifolia Linn. (Noni) Aqueous Fruit Extract on the Glucose and Lipid Metabolism in High-Fat/High-Fructose-Fed Swiss Mice. Nutrients 2020; 12:nu12113439. [PMID: 33182564 PMCID: PMC7696076 DOI: 10.3390/nu12113439] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 10/13/2020] [Accepted: 10/20/2020] [Indexed: 12/28/2022] Open
Abstract
The aim of this study was to evaluate the therapeutic effects of two different doses (250 and 500 mg/kg) of Morinda citrifolia fruit aqueous extract (AE) in high-fat/high-fructose-fed Swiss mice. The food intake, body weight, serum biochemical, oral glucose tolerance test (OGTT), and enzyme-linked immunosorbent assay (ELISA), as well as histological analyses of the liver, pancreatic, and epididymal adipose tissue, were used to determine the biochemical and histological parameters. The chemical profile of the extract was determined by ultra-fast liquid chromatography–diode array detector–tandem mass spectrometry (UFLC–DAD–MS), and quantitative real-time PCR (qRT-PCR) was used to evaluate the gene expressions involved in the lipid and glucose metabolism, such as peroxisome proliferative-activated receptors-γ (PPAR-γ), -α (PPAR-α), fatty acid synthase (FAS), glucose-6-phosphatase (G6P), sterol regulatory binding protein-1c (SREBP-1c), carbohydrate-responsive element-binding protein (ChREBP), and fetuin-A. Seventeen compounds were tentatively identified, including iridoids, noniosides, and the flavonoid rutin. The higher dose of AE (AE 500 mg/kg) was demonstrated to improve the glucose tolerance; however, both doses did not have effects on the other metabolic and histological parameters. AE at 500 mg/kg downregulated the PPAR-γ, SREBP-1c, and fetuin-A mRNA in the liver and upregulated the PPAR-α mRNA in white adipose tissue, suggesting that the hypoglycemic effects could be associated with the expression of genes involved in de novo lipogenesis.
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Affiliation(s)
- Aline Carla Inada
- Post Graduate Program in Health and Development in the Central-West Region of Brazil, Federal University of Mato Grosso do Sul, Campo Grande, MS 79070-900, Brazil; (G.T.S.); (L.P.R.d.S.); (R.d.C.A.G.); (K.d.C.F.); (P.A.H.)
- Correspondence: ; Tel.: +55-(67)-3345-7410
| | - Gabriela Torres Silva
- Post Graduate Program in Health and Development in the Central-West Region of Brazil, Federal University of Mato Grosso do Sul, Campo Grande, MS 79070-900, Brazil; (G.T.S.); (L.P.R.d.S.); (R.d.C.A.G.); (K.d.C.F.); (P.A.H.)
| | - Laleska Pâmela Rodrigues da Silva
- Post Graduate Program in Health and Development in the Central-West Region of Brazil, Federal University of Mato Grosso do Sul, Campo Grande, MS 79070-900, Brazil; (G.T.S.); (L.P.R.d.S.); (R.d.C.A.G.); (K.d.C.F.); (P.A.H.)
| | - Flávio Macedo Alves
- Institute of Biosciences, Federal University of Mato Grosso do Sul-UFMS, Campo Grande, MS 79070-900, Brazil;
| | - Wander Fernando de Oliveira Filiú
- Faculty of Pharmaceutical Science, Food and Nutrition, Federal University of Mato Grosso do Sul-UFMS, Campo Grande, MS 79070-900, Brazil;
| | - Marcel Arakaki Asato
- Faculty of Medicine, Federal University of Mato Grosso do Sul—UFMS, Campo Grande, MS 79070-900, Brazil;
| | - Wilson Hino Kato Junior
- Laboratory PRONABio (Laboratory of Bioactive Natural Products)—Chemistry Institute, Federal University of Mato Grosso do Sul-UFMS, Campo Grande, MS 79070-900, Brazil; (W.H.K.J.); (J.C.); (P.d.O.F.); (F.R.G.); (W.S.G.)
| | - Joaquim Corsino
- Laboratory PRONABio (Laboratory of Bioactive Natural Products)—Chemistry Institute, Federal University of Mato Grosso do Sul-UFMS, Campo Grande, MS 79070-900, Brazil; (W.H.K.J.); (J.C.); (P.d.O.F.); (F.R.G.); (W.S.G.)
| | - Patrícia de Oliveira Figueiredo
- Laboratory PRONABio (Laboratory of Bioactive Natural Products)—Chemistry Institute, Federal University of Mato Grosso do Sul-UFMS, Campo Grande, MS 79070-900, Brazil; (W.H.K.J.); (J.C.); (P.d.O.F.); (F.R.G.); (W.S.G.)
| | - Fernanda Rodrigues Garcez
- Laboratory PRONABio (Laboratory of Bioactive Natural Products)—Chemistry Institute, Federal University of Mato Grosso do Sul-UFMS, Campo Grande, MS 79070-900, Brazil; (W.H.K.J.); (J.C.); (P.d.O.F.); (F.R.G.); (W.S.G.)
| | - Walmir Silva Garcez
- Laboratory PRONABio (Laboratory of Bioactive Natural Products)—Chemistry Institute, Federal University of Mato Grosso do Sul-UFMS, Campo Grande, MS 79070-900, Brazil; (W.H.K.J.); (J.C.); (P.d.O.F.); (F.R.G.); (W.S.G.)
| | - Renée de Nazaré Oliveira da Silva
- Department of Pharmacology, Biomedical Sciences Institute, University of São Paulo, São Paulo, SP 05508-900, Brazil; (R.d.N.O.d.S.); (R.A.d.S.-E.)
| | | | - Rita de Cássia Avellaneda Guimarães
- Post Graduate Program in Health and Development in the Central-West Region of Brazil, Federal University of Mato Grosso do Sul, Campo Grande, MS 79070-900, Brazil; (G.T.S.); (L.P.R.d.S.); (R.d.C.A.G.); (K.d.C.F.); (P.A.H.)
| | - Karine de Cássia Freitas
- Post Graduate Program in Health and Development in the Central-West Region of Brazil, Federal University of Mato Grosso do Sul, Campo Grande, MS 79070-900, Brazil; (G.T.S.); (L.P.R.d.S.); (R.d.C.A.G.); (K.d.C.F.); (P.A.H.)
| | - Priscila Aiko Hiane
- Post Graduate Program in Health and Development in the Central-West Region of Brazil, Federal University of Mato Grosso do Sul, Campo Grande, MS 79070-900, Brazil; (G.T.S.); (L.P.R.d.S.); (R.d.C.A.G.); (K.d.C.F.); (P.A.H.)
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Derebe D, Wubetu M, Alamirew A. Hypoglycemic and Antihyperglycemic Activities of 80% Methanol Root Extract of Acanthus polystachyus Delile (Acanthaceae) in Type 2 Diabetic Rats. Clin Pharmacol 2020; 12:149-157. [PMID: 33061672 PMCID: PMC7526742 DOI: 10.2147/cpaa.s273501] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 09/11/2020] [Indexed: 11/23/2022] Open
Abstract
Background The morbidity and mortality rate from diabetic mellitus are increasing in the world especially in low- and middle-income countries; hence, it is necessary to evaluate the efficacy and safety of medicinal plants to support existing drugs in treating diabetes mellitus. Therefore, the aim of this study was to evaluate the hypoglycemic effect of 80% methanol root extract of Acanthus polystachyus in normoglycemic, hyperglycemic, and streptozotocin–nicotinamide induced diabetic rats. Methods Male albino Wistar rats were divided into five groups (n=6) in all three models. In all models, group one rats served as a negative control and were received vehicle (10mL/kg distilled water), whereas group two (APRE100), three (APRE200), and four (APRE400) were treated with 100, 200, and 400mg/kg of extract, respectively, and group five were treated with glibenclamide (5mg/kg) and served as a positive control. Blood glucose levels were measured at different time points by taking blood from their tails. Data were analyzed using one-way ANOVA followed by Tukey’s post hoc test to carry out comparisons between and within-group and P < 0.05 was considered as statistically significant. Results The root of Acanthus polystachyus reduces peak blood sugar levels significantly after the loading of oral glucose at all tested doses. In streptozotocin–nicotinamide-induced type 2 diabetic rats, the daily oral administration of the crude extracts showed a significant reduction of blood glucose level at all tested doses compared to the negative control group. However, the extract did not reduce blood glucose levels in normoglycemic rats at all tested doses compared to both negative and positive control. Conclusion From this study, it can be concluded that the root extract of Acanthus polystachyus showed an antihyperglycemic effect in hyperglycemic and diabetic rats but lack hypoglycemic effect in normoglycemic rats. Hence, the plant root may be a good candidate for the development of new antidiabetic drugs.
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Affiliation(s)
- Dagninet Derebe
- Department of Pharmacy, College of Medicine and Health Sciences, Bahir Dar University, Bahir Dar, Ethiopia
| | - Muluken Wubetu
- Department of Pharmacy, College of Health Sciences, Debre Markos University, Debre Markos, Ethiopia
| | - Amare Alamirew
- Department of Community Health, ALKAN Health Science, Business & Technology College, Bahir Dar, Ethiopia
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Khan D, Sharif A, Zafar M, Akhtar B, Akhtar MF, Awan S. Delonix regia a Folklore Remedy for Diabetes; Attenuates Oxidative Stress and Modulates Type II Diabetes Mellitus. Curr Pharm Biotechnol 2020; 21:1059-1069. [PMID: 32065099 DOI: 10.2174/1389201021666200217112244] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2019] [Revised: 01/07/2020] [Accepted: 01/28/2020] [Indexed: 01/08/2023]
Abstract
BACKGROUND The folkloric profile of Delonix regia demonstrates that it can be used in the management of diabetes. OBJECTIVE The present study was conducted to evaluate the safety profile of the aerial part extracts of Delonix regia and their antidiabetic potential along with improvement in oxidative stress. MATERIALS AND METHODS Phytochemical screening, total phenolic, and flavonoid contents along with in-vitro antioxidant and alpha-amylase inhibitory activities were determined. HPLC analysis, acute toxicity, glucose tolerance, in-vivo antidiabetic effect along with the influence on biochemical, oxidative stress parameters, and comet assay of the active extract were performed and assessed. RESULTS Total phenolic (831.6±0.002 mg/g GAE) and flavonoid (361.4±0.002 mg/g QE) contents were found to be higher in the methanolic extract. Inhibitory concentration IC50 indicated better results for the methanolic extract in DPPH (47.6μg/mL) and alpha-amylase inhibitory (14.61μg/mL) assays. HPLC analysis of the methanolic extract confirmed the presence of quercetin, gallic acid, caffeic acid, cinnamic acid, ferulic acid, and p-coumaric acid. Acute oral toxicity exhibited no mortality and morbidity during the 24h period. The methanolic extract showed better tolerance to glucose. Streptozotocin- nicotinamide (55-110 mg/kg) induced hyperglycemia declined along with improvement in hematological, biochemical parameters and oxidative stress markers (SOD, CAT, H202) in a dose-dependent manner. The maximum effect was recorded at 500mg/kg dose. Comet assay was performed for genotoxic studies and it was observed that the methanolic extract of Delonix regia showed the maximum genoprotective effect at 100μg/mL. CONCLUSION The findings suggest that the methanolic aerial part extract of Delonix regia exhibited hypoglycemic, antioxidant, and hypolipidemic activities. The antidiabetic effect was comparable to glibenclamide suggesting its therapeutic use as a natural anti-diabetic remedy.
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Affiliation(s)
- Darosham Khan
- Faculty of Pharmacy, The University of Lahore, Lahore, Pakistan
| | - Ali Sharif
- Institute of Pharmacy, Faculty of Pharmaceutical and Allied Health Sciences, Lahore College for Women University, Jail Road, Lahore, Pakistan
| | - Mehroz Zafar
- Faculty of Pharmacy, The University of Lahore, Lahore, Pakistan
| | - Bushra Akhtar
- Department of Pharmacy, University of Agriculture Faisalabad, Faisalabad, Pakistan
| | - Muhammad F Akhtar
- Institute of Pharmaceutical Sciences, Ripah International University, Lahore Campus Lahore, Lahore, Pakistan
| | - Sana Awan
- Institute of Molecular Biology and Biotechnology, The University of Lahore, Lahore, Pakistan
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Torres Silva G, Di Pietro Fernandes C, Hiane PA, Freitas KDC, Figueiredo PS, Inada AC, Filiú WF, Maldonade IR, Nunes ÂA, de Oliveira LCS, Caires ARL, Michels F, Candido CJ, Cavalheiro LF, Arakaki Asato M, Rodrigues Donadon J, Bacelar de Faria B, Tatara MB, Rosa Croda JH, Pott A, Nazário CED, Guimarães RDCA. Caryocar brasiliense Cambess. Pulp Oil Supplementation Reduces Total Cholesterol, LDL-c, and Non-HDL-c in Animals. Molecules 2020; 25:molecules25194530. [PMID: 33022905 PMCID: PMC7582708 DOI: 10.3390/molecules25194530] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 08/07/2020] [Accepted: 08/12/2020] [Indexed: 12/17/2022] Open
Abstract
The fruit of Caryocar brasiliense Cambess. is a source of oil with active compounds that are protective to the organism. In our work, we analyzed the physicochemical characteristics and evaluated the effects of supplementation with C. brasiliense oil in an animal model. We characterized the oil by indices of quality and identity, optical techniques of absorption spectroscopy in the UV–Vis region and fluorescence, and thermogravimetry/derived thermogravimetry (TG/DTG). For the animal experiment, we utilized mice (Mus musculus) supplemented with lipidic source in different dosages. The results demonstrated that C. brasiliense oil is an alternative source for human consumption and presents excellent oxidative stability. Primarily, it exhibited oleic MFA (53.56%) and palmitic SFA (37.78%). The oil level of tocopherols and tocotrienols was superior to the carotenoids. The supplementation with C. brasiliense oil reduced the levels of total cholesterol, LDL-c, and non-HDL-c. Regarding visceral fats and adiposity index, the treatment synergically supplemented with olive oil and C. brasiliense oil (OO + CO) obtained the best result. Therefore, C. brasiliense oil is a high quality product for consumption. Its supplementation promotes beneficial effects mainly on the lipidic profile.
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Affiliation(s)
- Gabriela Torres Silva
- Program in Health and Development in the Midwest Region, Medical School, Federal University of Mato Grosso do Sul, Campo Grande 79070-900, Brazil; (G.T.S.); (P.A.H.); (K.d.C.F.); (P.S.F.); (A.C.I.); (C.J.C.); (J.R.D.)
| | - Carolina Di Pietro Fernandes
- Pharmaceutical Science, Food and Nutrition Faculty, Federal University of Mato Grosso do Sul-UFMS, Campo Grande 79079-900, Brazil; (C.D.P.F.); (W.F.F.); (A.P.)
| | - Priscila Aiko Hiane
- Program in Health and Development in the Midwest Region, Medical School, Federal University of Mato Grosso do Sul, Campo Grande 79070-900, Brazil; (G.T.S.); (P.A.H.); (K.d.C.F.); (P.S.F.); (A.C.I.); (C.J.C.); (J.R.D.)
| | - Karine de Cássia Freitas
- Program in Health and Development in the Midwest Region, Medical School, Federal University of Mato Grosso do Sul, Campo Grande 79070-900, Brazil; (G.T.S.); (P.A.H.); (K.d.C.F.); (P.S.F.); (A.C.I.); (C.J.C.); (J.R.D.)
| | - Priscila Silva Figueiredo
- Program in Health and Development in the Midwest Region, Medical School, Federal University of Mato Grosso do Sul, Campo Grande 79070-900, Brazil; (G.T.S.); (P.A.H.); (K.d.C.F.); (P.S.F.); (A.C.I.); (C.J.C.); (J.R.D.)
| | - Aline Carla Inada
- Program in Health and Development in the Midwest Region, Medical School, Federal University of Mato Grosso do Sul, Campo Grande 79070-900, Brazil; (G.T.S.); (P.A.H.); (K.d.C.F.); (P.S.F.); (A.C.I.); (C.J.C.); (J.R.D.)
| | - Wander Fernando Filiú
- Pharmaceutical Science, Food and Nutrition Faculty, Federal University of Mato Grosso do Sul-UFMS, Campo Grande 79079-900, Brazil; (C.D.P.F.); (W.F.F.); (A.P.)
| | - Iriani Rodrigues Maldonade
- Laboratory of Food Science and Technology, Brazilian Agricultural Research Corporation (Embrapa Hortaliças), Brasília 70275-970, Brazil;
| | | | - Lincoln Carlos Silva de Oliveira
- Chemistry Institute, Federal University of Mato Grosso do Sul, Campo Grande 79070-900, Brazil; (L.C.S.d.O.); (L.F.C.); (C.E.D.N.)
| | - Anderson Rodrigues Lima Caires
- Optics and Photonics Group, Institute of Physics, Federal University of Mato Grosso do Sul, Campo Grande 79070-900, Brazil; (A.R.L.C.); (F.M.)
| | - Flavio Michels
- Optics and Photonics Group, Institute of Physics, Federal University of Mato Grosso do Sul, Campo Grande 79070-900, Brazil; (A.R.L.C.); (F.M.)
| | - Camila Jordão Candido
- Program in Health and Development in the Midwest Region, Medical School, Federal University of Mato Grosso do Sul, Campo Grande 79070-900, Brazil; (G.T.S.); (P.A.H.); (K.d.C.F.); (P.S.F.); (A.C.I.); (C.J.C.); (J.R.D.)
| | - Leandro Fontoura Cavalheiro
- Chemistry Institute, Federal University of Mato Grosso do Sul, Campo Grande 79070-900, Brazil; (L.C.S.d.O.); (L.F.C.); (C.E.D.N.)
| | - Marcel Arakaki Asato
- Medical School, Federal University of Mato Grosso do Sul, Campo Grande 79070-900, Brazil;
| | - Juliana Rodrigues Donadon
- Program in Health and Development in the Midwest Region, Medical School, Federal University of Mato Grosso do Sul, Campo Grande 79070-900, Brazil; (G.T.S.); (P.A.H.); (K.d.C.F.); (P.S.F.); (A.C.I.); (C.J.C.); (J.R.D.)
| | | | - Mariana Bento Tatara
- Health Science Research Laboratory, Federal University of Grande Dourados, Dourados 79804-970, Brazil; (M.B.T.); (J.H.R.C.)
| | - Julio Henrique Rosa Croda
- Health Science Research Laboratory, Federal University of Grande Dourados, Dourados 79804-970, Brazil; (M.B.T.); (J.H.R.C.)
- School of Medicine Federal University of Mato Grosso do Sul, Oswaldo Cruz Foundation—Fiocruz, Campo Grande 79074-460, Brazil
| | - Arnildo Pott
- Pharmaceutical Science, Food and Nutrition Faculty, Federal University of Mato Grosso do Sul-UFMS, Campo Grande 79079-900, Brazil; (C.D.P.F.); (W.F.F.); (A.P.)
| | - Carlos Eduardo Domingues Nazário
- Chemistry Institute, Federal University of Mato Grosso do Sul, Campo Grande 79070-900, Brazil; (L.C.S.d.O.); (L.F.C.); (C.E.D.N.)
| | - Rita de Cássia Avellaneda Guimarães
- Program in Health and Development in the Midwest Region, Medical School, Federal University of Mato Grosso do Sul, Campo Grande 79070-900, Brazil; (G.T.S.); (P.A.H.); (K.d.C.F.); (P.S.F.); (A.C.I.); (C.J.C.); (J.R.D.)
- Correspondence: ; Tel.: +55-67-3345-7416
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Effect of Supplementation with Hydroethanolic Extract of Campomanesia xanthocarpa (Berg.) Leaves and Two Isolated Substances from the Extract on Metabolic Parameters of Mice Fed a High-Fat Diet. Molecules 2020; 25:molecules25112693. [PMID: 32531999 PMCID: PMC7321075 DOI: 10.3390/molecules25112693] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 04/19/2020] [Accepted: 04/20/2020] [Indexed: 01/10/2023] Open
Abstract
There are still controversies regarding the correlation between the beneficial effects for health and the administration of isolated compounds or crude extracts in therapeutic applications. Campomanesia xanthocarpa, found in the Brazilian Cerrado, demonstrated beneficial effects in metabolic disorders associated with obesity. We investigated the effects of Campomanesia xanthocarpa hydroethanolic extract and two isolated substances from the extract (S1 and S2) in a diet-induced obesity (DIO) model. Male Swiss mice were divided into five groups: (1) American Institute of Nutrition (AIN-93M) diet, (2) high-fat diet (HF), (3) HF supplemented with C. xanthocarpa hydroethanolic leaf extract at 100 mg/kg (HFE), (4) HF supplemented with S1 at 1 mg/kg (HFS1) and (5) HF supplemented with S2 at 1 mg/kg (HFS2). The HFS1, HFS2 and HFE groups did not present decreasing body weight or visceral adiposity gain. No differences in glycemic and lipid parameters, or in the expression of protein content in two cytokines, interleukin-6 (IL-6) and anti-inflammatory (IL-10), were observed. Only the HFS1 group displayed decreased food intake. Even though substantial effects such as an improvement in obesity features or the metabolic and histological parameters promoted by S1, S2 and the extract were not observed, further investigations are necessary to evaluate the principal genes and protein expressions involved in regulating food behavior promoted by S1.
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Ismail Iid I, Kumar S, Shukla S, Kumar V, Sharma R. Putative antidiabetic herbal food ingredients: Nutra/functional properties, bioavailability and effect on metabolic pathways. Trends Food Sci Technol 2020. [DOI: 10.1016/j.tifs.2020.01.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Alkreathy HM, Ahmad A. Catharanthus roseus Combined with Ursolic Acid Attenuates Streptozotocin-Induced Diabetes through Insulin Secretion and Glycogen Storage. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:8565760. [PMID: 32148658 PMCID: PMC7049865 DOI: 10.1155/2020/8565760] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 01/07/2020] [Accepted: 01/29/2020] [Indexed: 12/11/2022]
Abstract
Catharanthus roseus (C. roseus) and ursolic acid (UA) are ayurvedic medicines with multiple pharmacological activities including antidiabetic activity, but till date, no study is available on their combination. This study documented the antidiabetic efficacy of the combination of C. roseus and UA in rats. Rats were divided into six groups. All groups were given a single dose of Streptozotocin (STZ) at a dose of 50 mg/kg by intraperitoneal route for induction of diabetes, except the normal control group. Group 1 was treated as a normal control (NC) group and fed with saline water, Group 2 as a Diabetes Control group, Group 3 as a STZ+C. roseus ethanolic extract (CREE) group at 50 mg/kg p.o., Group 4 as a STZ+UA group orally at 50 mg/kg, Group 5 as a STZ+CREE (25 mg/kg p.o.)+UA (25 mg/kg p.o.) group, and Group 6 as a STZ+Glimepiride (0.1 mg/kg) group. Diabetes was confirmed after 72 hours by estimation of blood glucose level, and then treatment was given for the next 28 days. During the course of treatment, plasma insulin and blood glucose were measured regularly at the interval of 7 days. At the end of the protocol, blood was collected and animals were sacrificed. The glucose level, insulin level, liver glycogen storage level, and antioxidant enzymes (LPO, CAT, SOD, GPx, GST) were measured. The blood glucose level in Group 5 significantly (P < 0.001) reduced to 98.35 ± 2.45 mg/dl in comparison with that in Group 2 (321.75 ± 5.46 mg/dl). The level of plasma insulin in Group 5 increased (13.65 ± 0.10 μU/ml) significantly (P < 0.01) as compared with that in Group 2 (05.93 ± 0.31 μU/ml). In Group 5, the level of glycogen in liver was significantly (P < 0.01) increased as compared with that in Group 2 rats. The level of antioxidant enzymes in Group 5 restored toward normal values significantly (P < 0.01; P < 0.001) as compared with that in Group 2 animals. These findings suggest that low-dose combination of CREE and UA is effective in the treatment of diabetes.
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Affiliation(s)
- Huda Mohammed Alkreathy
- Department of Pharmacology, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Aftab Ahmad
- Health Information Technology Department, Faculty of Applied Studies, King Abdulaziz University, Jeddah -21589, Saudi Arabia
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AL-Tikrity NY, Ulrazzaq FSHA, Beyatli A. Synthesis, biochemical and histological study of captopril derivatives as a possible drug for diabetes. PROCEEDINGS OF THE 2020 2ND INTERNATIONAL CONFERENCE ON SUSTAINABLE MANUFACTURING, MATERIALS AND TECHNOLOGIES 2020. [DOI: 10.1063/5.0030689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Singhal T, Mujeeb M, Ahad A, Aqil M, Rahman SO, Najmi AK, Siddiqui WA. Preparation, optimization and biological evaluation of gymnemic acid loaded niosomes against streptozotocin-nicotinamide induced diabetic-nephropathy in Wistar rats. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2019.101328] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Phosphocreatine Improves Cardiac Dysfunction by Normalizing Mitochondrial Respiratory Function through JAK2/STAT3 Signaling Pathway In Vivo and In Vitro. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:6521218. [PMID: 31885809 PMCID: PMC6914882 DOI: 10.1155/2019/6521218] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2019] [Accepted: 08/29/2019] [Indexed: 12/17/2022]
Abstract
Diabetic cardiomyopathy (DCM) is one of the common cardiovascular complications in patients with diabetes. Accumulating evidence has demonstrated that DCM is thoroughly related to mitochondrial energy impairment and increases the generation of reactive oxygen species (ROS). Therefore, an ongoing study is developing strategies to protect cardiac mitochondria from diabetic complications, especially from hyperglycemia. Phosphocreatine (PCr) plays a major metabolic role in cardiac muscular cells including intracellular concentration of ATP which affects the activity of the myocardium. We hypothesized that PCr might improve oxidative phosphorylation and electron transport capacity in mitochondria impaired by hyperglycemia in vivo and in vitro. Also, we aimed to evaluate the protective effect of PCr against DCM through the JAK2/STAT3 signaling pathway. The mitochondrial respiratory capacity from rats and H9C2 cells was measured by high-resolution respirometry (HRR). Expressions of proteins Bax, Bcl-2, caspase 3, caspase 9, cleaved caspase 3, and cleaved caspase 9, as well as JAK2/STAT3 signaling pathways, were determined by western blotting. ROS generation and mitochondrial membrane potential (MMP) were measured with fluorescent probes. Type 1 diabetes mellitus was induced in Wistar male rats by a single intraperitoneal injection of streptozotocin (STZ) (80 mg/kg body weight). Our results revealed that PCr possessed protective effects against DCM injury by improving the mitochondrial bioenergetics and by positively exerting protective effects against DCM in vivo and in vitro, not only improving diabetes symptom, resulting in changes of cardiac tissue using hematoxylin and eosin (H&E) stain, but also ameliorating biochemical changes. Moreover, PCr increased Bcl-2, caspase 3, and caspase 9 protein expressions and decreased Bax, cleaved caspase 3, and cleaved caspase 9 expressions as well as the JAK2/STAT3 signaling pathway. In conclusion, PCr improves mitochondrial functions and exerts an antiapoptotic effect in vivo and in vitro exposed to oxidative stress by hyperglycemia through the JAK2/STAT3 signaling pathway. Our findings suggest that PCr medication is a possible therapeutic strategy for cardioprotection.
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Abdel-Kader MS, Soliman GA, Abdel-Rahman RF, Saeedan AS, Abd-Elsalam RM, Ogaly HA. Effect of olive leaves extract on the antidiabetic effect of glyburide for possible herb-drug interaction. Saudi Pharm J 2019; 27:1182-1195. [PMID: 31885478 PMCID: PMC6921200 DOI: 10.1016/j.jsps.2019.10.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Accepted: 10/02/2019] [Indexed: 02/02/2023] Open
Abstract
The concomitant use of olive leaves (OL) and glyburide (GLB) is a possible therapy for diabetic patients. However, there is no report about the effect of OL on the antidiabetic effect of GLB till now. In the current study, the possible interaction of olive leaves extract (OLE) with GLB was assessed to determine if there was any pharmacological benefit over GLB alone. Seven groups of male Sprague Dawley rats were used. Normal rats of the 1st group treated with 2 mL/kg of 3% Tween 80 (vehicle). The 2nd–5th groups were diabetic rats received vehicle, GLB (5 mg/kg), OLE low dose and OLE high dose respectively, while the 6th–7th groups administered combinations of GLB plus OLE low dose and GLB plus OLE high dose, respectively. All treatments were administered orally once daily for 8 weeks. The use of GLB+OLE-500 obviously improved fasting blood glucose (FBG), insulin and glycated hemoglobin (HbA1c) in diabetic rats (95.5 ± 5.55 mg/dL, 6.8 ± 0.16 mg/dL and 6.1 ± 0.29%, respectively) compared to those treated with GLB monotherapy (140.0 ± 6.36 mg/dL, 5.4 ± 0.19 mg/dL and 7.0 ± 0.20%, respectively). The lipid profile [triglycerides (TG), total cholesterol (TC), high-density lipoprotein cholesterol (HDL-C) and low-density lipoprotein cholesterol (LDL-C)] was significantly improved in diabetic rats exposed to GLB+OLE-500 (35.6 ± 1.51 mg/dL, 48.5 ± 2.74 mg/dL, 25.1 ± 1.21 mg/dL and 17.0 ± 0.82 mg/dL, respectively) in comparison with diabetic group exposed to GLB alone (43.2 ± 2.15 mg/dL, 56.8 ± 2.14 mg/dL, 18.6 ± 0.96 mg/dL, 23.0 ± 1.26 mg/dL, respectively). Additionally, the benefit impacts of GLB+OLE-500GLB+OLE-500 therapy on the antioxidant and lipid peroxidation parameters in the pancreatic tissues of diabetic rats were higher than those of GLB monotherapy. Moreover, GLB plus OLE-500 combination had the greatest effect on restoration of the insulin content of Beta (β) cells and reduction of the glucagon and somatostatin of Alpha (α) and Delta (δ) endocrine cells in the pancreatic islets among the different treatment. The current study suggests that OL and GLB combination could cause herb-drug interactions through modulation of insulin receptor (INR), glucose transporter 2 (Slc2a2) and peroxisome proliferator-activated receptor α (PPAR-α) genes expression in the liver of diabetic rats.
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Affiliation(s)
- Maged S Abdel-Kader
- Department of Pharmacognosy, College of Pharmacy, Prince Sattam bin Abdulaziz University, P.O. Box 173, Al-Kharj 11942, Saudi Arabia.,Department of Pharmacognosy, College of Pharmacy, Alexandria University, Alexandria 21215, Egypt
| | - Gamal A Soliman
- Department of Pharmacology, College of Pharmacy, Prince Sattam bin Abdulaziz University, P.O. Box 173, Al-Kharj 11942, Saudi Arabia.,Department of Pharmacology, College of Veterinary Medicine, Cairo University, Giza, Egypt
| | | | - Abdulaziz S Saeedan
- Department of Pharmacology, College of Pharmacy, Prince Sattam bin Abdulaziz University, P.O. Box 173, Al-Kharj 11942, Saudi Arabia
| | - Reham M Abd-Elsalam
- Department of Pathology, College of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Hanan A Ogaly
- Department of Chemistry, College of Science, King Khalid University, Abha, Saudi Arabia.,Department of Biochemistry, College of Veterinary Medicine, Cairo University, Giza, Egypt
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Elangovan A, Subramanian A, Durairaj S, Ramachandran J, Lakshmanan DK, Ravichandran G, Nambirajan G, Thilagar S. Antidiabetic and hypolipidemic efficacy of skin and seed extracts of Momordica cymbalaria on alloxan induced diabetic model in rats. JOURNAL OF ETHNOPHARMACOLOGY 2019; 241:111989. [PMID: 31150795 DOI: 10.1016/j.jep.2019.111989] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 05/24/2019] [Accepted: 05/27/2019] [Indexed: 06/09/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Momordica cymbalaria, a wild vegetable belongs to the Cucurbitaceae family, has long been used as a food and a remedy for diabetes mellitus in the Asian native medicinal system. AIM OF THE STUDY This study aims to evaluate the efficacy of ethanolic extract of skin (EESK) and methanolic extract of seed (MESE) of M. cymbalaria (MC), for their hypoglycemic and hypolipidemic effects in alloxan induced diabetic rats. MATERIALS AND METHODS The diabetes induced rats were given skin and seed extracts at doses 250 and 500 mg/kg b.w. p.o. for 28 days. Alloxan monohydrate (120 mg/kg) was used to induce diabetes mellitus. Daily food and water intake were assessed. Blood glucose levels and body weights were measured every 7 days throughout the experiment. Antioxidant assays, different biochemical and glycemic parameters were evaluated. Histopathological studies on pancreas, liver and kidney were also studied. RESULTS Treatment of EESK and MESE showed dose significant decrease in fasting blood glucose level (FBG) in experimental diabetic animals with significant reduction in food and water intake and increase in body weight. Findings confirmed the hypoglycemic and hypolipidemic effects of EESK and MESE in the experimental groups. The impaired glucose tolerance and altered activities of the hepatic enzymes such as AST, ALT and ALP levels of diabetic rats were significantly improved by the administration of EESK and MESE. Oral treatment with MC extract for 28 days demonstrated significant protective effects on the lipid profile, biochemical parameters and antioxidant levels. Besides, biochemical findings were supported by histopathological investigations. CONCLUSION These results suggest that the treatment with EESK and MESE of MC at a dose of 500 mg/kg b.w. have better protective effects against hyperglycemia, hyperlipidemia and oxidative stress generated during diabetes justifying the use of the plant in traditional systems of medicine.
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Affiliation(s)
- Abbirami Elangovan
- Department of Environmental Biotechnology, Bharathidasan University, Tiruchirappalli, 620024, Tamil Nadu, India
| | - Abinaya Subramanian
- Department of Environmental Biotechnology, Bharathidasan University, Tiruchirappalli, 620024, Tamil Nadu, India
| | - Siva Durairaj
- Department of Environmental Biotechnology, Bharathidasan University, Tiruchirappalli, 620024, Tamil Nadu, India
| | - Jeyadevi Ramachandran
- Department of Environmental Biotechnology, Bharathidasan University, Tiruchirappalli, 620024, Tamil Nadu, India
| | - Dinesh Kumar Lakshmanan
- Department of Environmental Biotechnology, Bharathidasan University, Tiruchirappalli, 620024, Tamil Nadu, India
| | - Guna Ravichandran
- Department of Environmental Biotechnology, Bharathidasan University, Tiruchirappalli, 620024, Tamil Nadu, India
| | - Gayathri Nambirajan
- Department of Environmental Biotechnology, Bharathidasan University, Tiruchirappalli, 620024, Tamil Nadu, India
| | - Sivasudha Thilagar
- Department of Environmental Biotechnology, Bharathidasan University, Tiruchirappalli, 620024, Tamil Nadu, India.
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Sasso S, Sampaio E Souza PC, Santana LF, Cardoso CAL, Alves FM, Portugal LC, de Faria BB, da Silva AF, Motta-Castro ARC, Soares LS, Bandeira LM, Guimarães RDCA, Freitas KDC. Use of an Extract of Annona muricata Linn to Prevent High-Fat Diet Induced Metabolic Disorders in C57BL/6 Mice. Nutrients 2019; 11:nu11071509. [PMID: 31269728 PMCID: PMC6682994 DOI: 10.3390/nu11071509] [Citation(s) in RCA: 9] [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: 05/04/2019] [Revised: 06/06/2019] [Accepted: 06/30/2019] [Indexed: 12/27/2022] Open
Abstract
Annona muricata Linn, commonly known as graviola, is one of the most popular plants used in Brazil for weight loss. The aim of this study is to evaluate the therapeutic effects of three different doses (50 mg/kg, 100 mg/kg, and 150 mg/kg) of aqueous graviola leaf extract (AGE) supplemented by oral gavage, on obese C57BL/6 mice. Food intake, body weight, an oral glucose tolerance test (OGTT), an insulin sensitivity test, quantification of adipose tissue cytokines, weight of fat pads, and serum biochemical and histological analyses of the liver, pancreas, and epididymal adipose tissue were measured. AGE had an anti-inflammatory effect by increasing IL-10 at doses of 50 and 100 mg/kg. Regarding the cholesterol profile, there was a significant decrease in LDL-cholesterol levels in the AGE 150 group, and VLDL-cholesterol and triglycerides in the AGE 100 and 150 groups. There was an increase in HDL cholesterol in the AGE 150 group. The extract was able to reduce the adipocyte area of the epididymal adipose tissue in the AGE 100 and 150 groups. According to the histological analysis of the liver and pancreas, no significant difference was found among the groups. There were no significant effects of AGE on OGTT and serum fasting glucose concentration. However, the extract was effective in improving glucose tolerance in the AGE 150 group.
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Affiliation(s)
- Sandramara Sasso
- Posgraduate Program in Health and Development in the Midwest Region, Medical School, Federal University of Mato Grosso do Sul, Campo Grande, 79070-900 Mato Grosso do Sul, Brazil
| | - Priscilla Cristovam Sampaio E Souza
- Faculty of Pharmaceutical Sciences, Food and Nutrition, Federal University of Mato Grosso do Sul, Campo Grande, 79070-900 Mato Grosso do Sul, Brazil
| | - Lidiani Figueiredo Santana
- Posgraduate Program in Health and Development in the Midwest Region, Medical School, Federal University of Mato Grosso do Sul, Campo Grande, 79070-900 Mato Grosso do Sul, Brazil
| | | | - Flávio Macedo Alves
- Institute of Biosciences, Federal University of Mato Grosso do Sul, Campo Grande, 79070-900 Mato Grosso do Sul, Brazil
| | - Luciane Candeloro Portugal
- Institute of Biosciences, Federal University of Mato Grosso do Sul, Campo Grande, 79070-900 Mato Grosso do Sul, Brazil
| | | | - Anderson Fernandes da Silva
- Posgraduate Program in Health and Development in the Midwest Region, Medical School, Federal University of Mato Grosso do Sul, Campo Grande, 79070-900 Mato Grosso do Sul, Brazil
| | - Ana Rita Coimbra Motta-Castro
- Laboratory of Clinical Immunology, Faculty of Pharmaceutical Sciences, Food and Nutrition, Federal University of Mato Grosso do Sul, Campo Grande, 79070-900 Mato Grosso do Sul, Brazil
- Oswaldo Cruz Foundation, Campo Grande, 79074-460 Mato Grosso do Sul, Brazil
| | - Luana Silva Soares
- Laboratory of Clinical Immunology, Faculty of Pharmaceutical Sciences, Food and Nutrition, Federal University of Mato Grosso do Sul, Campo Grande, 79070-900 Mato Grosso do Sul, Brazil
| | - Larissa Melo Bandeira
- Laboratory of Clinical Immunology, Faculty of Pharmaceutical Sciences, Food and Nutrition, Federal University of Mato Grosso do Sul, Campo Grande, 79070-900 Mato Grosso do Sul, Brazil
| | - Rita de Cássia Avellaneda Guimarães
- Posgraduate Program in Health and Development in the Midwest Region, Medical School, Federal University of Mato Grosso do Sul, Campo Grande, 79070-900 Mato Grosso do Sul, Brazil
| | - Karine de Cássia Freitas
- Posgraduate Program in Health and Development in the Midwest Region, Medical School, Federal University of Mato Grosso do Sul, Campo Grande, 79070-900 Mato Grosso do Sul, Brazil.
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Chandran R, Parimelazhagan T, George BP. Antihyperglycemic activity of the bark methanolic extract of Syzygium mundagam in diabetic rats. ALEXANDRIA JOURNAL OF MEDICINE 2019. [DOI: 10.1016/j.ajme.2016.12.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Affiliation(s)
- Rahul Chandran
- Bioprospecting Laboratory, Department of Botany, Bharathiar University, Coimbatore, Tamil Nadu, India
| | - Thangaraj Parimelazhagan
- Bioprospecting Laboratory, Department of Botany, Bharathiar University, Coimbatore, Tamil Nadu, India
| | - Blassan P. George
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, South Africa
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Effect of Xylocarpus granatum Bark Extract on Amelioration of Hyperglycaemia and Oxidative Stress Associated Complications in STZ-Induced Diabetic Mice. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2019; 2019:8493190. [PMID: 31186667 PMCID: PMC6521443 DOI: 10.1155/2019/8493190] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 02/11/2019] [Accepted: 03/25/2019] [Indexed: 02/08/2023]
Abstract
Xylocarpus granatum is a medicinal mangrove plant, traditionally used for the treatment of diarrhoea, cholera, fever, dyslipidaemia, inflammation, etc. The present study was aimed to evaluate the in vitro antidiabetic (α-glucosidase inhibition assay) and antioxidant (ABTS scavenging and metal chelating assay) activities of ethanol, methanol, and aqueous extracts of leaves and barks of X. granatum followed by in vivo antidiabetic and antioxidant evaluation of ethanol bark extracts in streptozotocin- (STZ-) induced diabetic mice. The in vitro evaluation revealed higher α-amylase inhibition and ABTS scavenging activities in ethanol bark extracts of X. granatum (XGEB). Administration of XGEB at 100 and 200 mg/kg BW doses to STZ-induced diabetic mice resulted in significant decrease (P < 0.05) in blood glucose, triglyceride (TG), total cholesterol (TC), serum glutamate oxaloacetate transaminase (SGOT), serum glutamate pyruvate transminase (SGPT), and urea levels in the serum of the extract administered groups as compared to diabetic control group. The levels of SOD, CAT, GPx, GR, and GST in liver along with LPx, SOD, GST, and GR activities in brain tissues were found to be ameliorated in XGEB treated diabetic mice. Histopathological alternations of liver tissues were also found to be restored in XGEB treated diabetic groups. The HPLC fingerprint analysis of XGEB revealed the presence of simple polyphenols, isoflavone, and flavonol-like compounds. The DSC and UV-VIS analysis also confirmed the presence of phenolic compounds in XGEB. The GC-MS analysis of XGEB showed the presence of a number of bioactive compounds. These results demonstrated the beneficial effect of XGEB in controlling hyperglycaemia and ameliorating oxidative stress associated complications associated with diabetes.
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Zhao LL, Makinde EA, Shah MA, Olatunji OJ, Panichayupakaranant P. Rhinacanthins-rich extract and rhinacanthin C ameliorate oxidative stress and inflammation in streptozotocin-nicotinamide-induced diabetic nephropathy. J Food Biochem 2019; 43:e12812. [PMID: 31353582 DOI: 10.1111/jfbc.12812] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 01/31/2019] [Accepted: 02/03/2019] [Indexed: 02/05/2023]
Abstract
In this present study, rhinacanthins-rich extract (RRE) and rhinacanthin C (RC) the main bioactive constituent of Rhinacanthus nasutus was investigated for their protective effect against diabetic nephropathy (DN). Diabetes was induced by administering nicotinamide (100 mg/kg, i.p.)/streptozotocin (60 mg/kg, i.p.) and diabetic rats were orally administered with RRE and RC for 4 weeks. RRE and RC significantly reduced the kidney index, renal oxidative stress markers, and pro-inflammatory cytokines. Furthermore, RRE and RC increased renal levels of glutathione, superoxide dismutase, catalase, and attenuated diabetic induced renal damages. In conclusion, RRE and RC confer protective effect against DN through the inhibition of oxidative stress and inflammation and could be a potential medicinal or nutritional supplement for the prevention of DN. PRACTICAL APPLICATIONS: Rhinacanthus nasutus is a medicinal plant that is extensively used in Thai traditional medicine as an antibacterial, antifungal, antidiabetic, and anti-inflammatory agent. The plant is rich in naphthoquinones, which confer it with several excellent bioactivities. The rich extract of the leaves was prepared with three major bioactive components and the extract was evaluated for its renoprotective effect in diabetic rats. The results from this study provides valuable pharmacological information that supports the use of the plant, especially the rich extract in the prevention and treatment of diabetes and diabetic complications.
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Affiliation(s)
- Ling-Ling Zhao
- Department of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng, China
| | | | - Muhammad Ajmal Shah
- Faculty of Pharmaceutical Sciences, Department of Pharmacognosy, Government College University, Faisalabad, Pakistan
| | | | - Pharkphoom Panichayupakaranant
- Faculty of Pharmaceutical Sciences, Department of Pharmacognosy and Pharmaceutical Botany, Prince of Songkla University, Hat Yai, Thailand.,Faculty of Pharmaceutical Sciences, Phytomedicine and Pharmaceutical Biotechnology Excellence Center, Prince of Songkla University, Hat Yai, Thailand
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Nazir N, Zahoor M, Nisar M, Khan I, Karim N, Abdel-Halim H, Ali A. Phytochemical analysis and antidiabetic potential of Elaeagnus umbellata (Thunb.) in streptozotocin-induced diabetic rats: pharmacological and computational approach. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2018; 18:332. [PMID: 30545352 PMCID: PMC6293591 DOI: 10.1186/s12906-018-2381-8] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Accepted: 11/21/2018] [Indexed: 11/17/2022]
Abstract
Background The fruit of Elaeagnus umbellata has high medicinal values and is an excellent source of phytochemicals. This study was aimed to evaluate the antioxidant, enzyme inhibitory and antidiabetic potential of Elaeagnus umbellata. Methods The antioxidant potential of the crude extract and subfractions of E. umbellata fruit were determined using DPPH (2, 20-diphenyl-1-picrylhydrazyl) and ABTS (2, 2′-azinobis-3-ethylbenzothiazoline-6-sulfonic acid) assays. The enzyme inhibitory potentials of extracts against α-amylase and α-glucosidase enzymes were also determined. The in vivo anti-hyperglycemic effects of the extract in STZ-induced type 2 diabetes were determined using Sprague Dawley adult rats. HPLC system (Agilent 1260) was used for the identification of bioactive compounds present in extracts. Molecular docking was used to identify and compare the interaction between the compounds (active constituents) and standard inhibitor acarbose with the α-amylase and α-glucosidase active sites. Results The chloroform, ethyl acetate, and butanol fractions showed significant antioxidant potential with IC50 values of 40, 45 and 60 μg/mL against DPPH and 57, 70 and 120 μg/mL against ABTS free radicals respectively. The chloroform and ethyl acetate were highly active against α-amylase and α-glucosidase (IC50 values 58 and 200 μg/ml against α-amylase 60 and 140 μg/ml against α-glucosidase. The crude extract, chloroform, and ethyl acetate fractions were more potent in controlling the hyperglycemia in STZ-induced type 2 diabetes in rats and considerable reduction of glucose level was observed compared to the non-treated group. Furthermore, the extracts were also found useful in controlling the secondary complications associated with type 2 diabetes mellitus which was evident from the observed substantial reduction in the blood level of serum glutamate oxaloacetate transaminase, serum glutamate pyruvate transaminase, alkaline phosphatase, total cholesterol, low-density lipoproteins, and triglycerides. The molecular docking approach indicated the favorable inhibitory interaction between the docked compounds and the active sites of the α-amylase and α-glucosidase. All docked compounds occupied the same binding site as occupied by acarbose. Conclusion It was concluded that E. umbellata can be used in the treatment of type 2 diabetes and oxidative stress. The extracts were also found to be effective in relieving the secondary complications associated with type 2 diabetes. Graphical abstract ![]()
Electronic supplementary material The online version of this article (10.1186/s12906-018-2381-8) contains supplementary material, which is available to authorized users.
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de Moura Barbosa H, Amaral D, do Nascimento JN, Machado DC, de Sousa Araújo TA, de Albuquerque UP, Guedes da Silva Almeida JR, Rolim LA, Lopes NP, Gomes DA, Lira EC. Spondias tuberosa inner bark extract exert antidiabetic effects in streptozotocin-induced diabetic rats. JOURNAL OF ETHNOPHARMACOLOGY 2018; 227:248-257. [PMID: 30176348 DOI: 10.1016/j.jep.2018.08.038] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 08/22/2018] [Accepted: 08/31/2018] [Indexed: 06/08/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Diabetes mellitus (DM) is one of the most important medical emergencies of the 21st century. However, commercially available oral drugs with antidiabetic properties have been limited because of potential side effects, such as: hypoglycemia, weight gain, hepatic dysfunction and abdominal discomfort. As well as antidiabetic drugs, many types of medicinal herbal supplements are utilized as alternative treatments for DM and related comorbidities. Spondias tuberosa Arruda (Anacardiaceae), popularly known as "umbu", has been used in traditional medicine to treat a vast range of diseases, including DM, infections, digestive disorders, diarrhea and menstrual abnormalities. AIM OF THE STUDY This study evaluated the effect of the hydroethanolic extract of the inner stem bark of Spondias tuberosa (EEStb) in streptozotocin-induced diabetic rats. MATERIALS AND METHODS Diabetes was induced in rats by a single injection of STZ (40 mg/kg i.p.). Diabetic rats were treated with 250 mg/kg or 500 mg/kg of the EEStb for 21 days. Water intake, urinary volume, body weight, as well as biochemical parameters, such as cholesterol total (TC), high-density lipoprotein cholesterol (HDL-C), triglycerides (TG), hepatic and muscle glycogen urea, alanine and aspartate aminotransferase, total protein, albumin, and glucose blood levels, were analyzed. We also determined the hepatic antioxidant state, as well as both of insulin and glucose tolerance. RESULTS The extract was evaluated by HPLC, and the major components of EESTb were identified (i.e. gallic acid and quercetin). The 500 mg/kg dosage of EEStb significantly decreased fasting blood glucose and post-prandial glucose. The EEStb also reduced urinary volume, food and water intake, as well as decreased body weight gain. Diabetic rats that received EEStb had a lower loss of muscle mass and white adipose tissue. Additionally, EEStb improved the urinary excretion of urea and glucose. The extract significantly decreased triglycerides, total cholesterol and VLDL in diabetic rats. However, no significant effect was observed on the levels of total and HDL cholesterol. EEStb treatment prevented hepatotoxic diabetic-induced, improved GSH:GSSG ratio, SOD and CAT activity as well as reduced nitrite and TBARs levels. CONCLUSIONS Our results demonstrate that EEStb has antioxidant and hepatoprotective effects as well as improves insulin sensibility in diabetic rats. This indicates that S. tuberosa could be a potential resource for alternative therapies in the treatment of hyperglycemic conditions. These results also support the use of EEStb in ethnomedicine for the management of diabetes.
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Affiliation(s)
- Humberto de Moura Barbosa
- Department of Physiology and Pharmacology, Center of Biosciences, Federal University of Pernambuco, 50670-901 Recife, Pernambuco, Brazil
| | - Dionísio Amaral
- Department of Physiology and Pharmacology, Center of Biosciences, Federal University of Pernambuco, 50670-901 Recife, Pernambuco, Brazil
| | - Jailson Nunes do Nascimento
- Department of Physiology and Pharmacology, Center of Biosciences, Federal University of Pernambuco, 50670-901 Recife, Pernambuco, Brazil
| | - Dijanah Cota Machado
- Department of Biophysics, Center of Biosciences, Federal University of Pernambuco, 50670-901 Recife, Pernambuco, Brazil
| | - Thiago Antônio de Sousa Araújo
- Laboratoy of Ecology and Evolution of Social-Ecological Systems, Departament of Botany, Federal University of Pernambuco, Brazil
| | - Ulysses Paulino de Albuquerque
- Laboratoy of Ecology and Evolution of Social-Ecological Systems, Departament of Botany, Federal University of Pernambuco, Brazil
| | | | - Larissa Araújo Rolim
- Center for Studies and Research of Medicinal Plants, Federal University of San Francisco Valley, 56.304-205 Petrolina, Pernambuco, Brazil
| | - Norberto Peporine Lopes
- Departament of Physics and Chemistry, Faculty of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, 14.040-903 Ribeirão Preto, São Paulo, Brazil
| | - Dayane Aparecida Gomes
- Department of Physiology and Pharmacology, Center of Biosciences, Federal University of Pernambuco, 50670-901 Recife, Pernambuco, Brazil
| | - Eduardo Carvalho Lira
- Department of Physiology and Pharmacology, Center of Biosciences, Federal University of Pernambuco, 50670-901 Recife, Pernambuco, Brazil.
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Uslu S, Alaca N, Kilic KD, Uysal A, Kurtel H. The effects of aerobic exercise frequencies on liver fibrosis, α-fetoprotein and cytokeratin 19 in experimental type 2 diabetes-induced rats: an immunohistochemistry study. Biotech Histochem 2018; 93:615-622. [DOI: 10.1080/10520295.2018.1517898] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Affiliation(s)
- S. Uslu
- Department of Histology and Embryology, Medeniyet University School of Medicine, Istanbul, Turkey
| | - N. Alaca
- Department of Physiotherapy, Acibadem Mehmet Ali Aydinlar University, Istanbul, Turkey
| | - K. D. Kilic
- Department of Histology and Embryology, Ege University School of Medicine, Izmir, Turkey
| | - A. Uysal
- Department of Histology and Embryology, Ege University School of Medicine, Izmir, Turkey
| | - H. Kurtel
- Department of Physiology, Marmara University School of Medicine, Istanbul, Turkey
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Soni LK, Dobhal MP, Arya D, Bhagour K, Parasher P, Gupta RS. In vitro and in vivo antidiabetic activity of isolated fraction of Prosopis cineraria against streptozotocin-induced experimental diabetes: A mechanistic study. Biomed Pharmacother 2018; 108:1015-1021. [PMID: 30372801 DOI: 10.1016/j.biopha.2018.09.099] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 09/15/2018] [Accepted: 09/18/2018] [Indexed: 12/19/2022] Open
Abstract
A rapidly increasing incidence of Diabetes mellitus throughout the world is a major concern in both developed and developing countries and the drawbacks associated with currently available treatments led to switching researcher's attention towards naturopathy. Since ancient time, herbal plants have been traditionally used for the treatment of diabetes as they consider to be less toxic and free from side effects than synthetic ones. In our previous studies, we had isolated two new compounds (Methyl 5-tridecyloctadec-4-enoate and Nonacosan-8-one), together with three known compounds (Lupeol, β-sitosterol and Stigmasterol) from chloroform fraction of stem bark of P. cineraria (CfPc). The present study aimed to determine the in vivo and in vivo antidiabetic activity of CfPc in streptozotocin induced experimental diabetes and also evaluated their possible mode of action. CfPc was orally administrated to STZ (55 mg/kg b.wt) induced diabetic rats at the doses of 50 and 100 mg/kg b.wt for 21 days. Treatment of CfPc significantly (p < 0.05) lowered the level of blood glucose, glycosylated hemoglobin and also restored body weight, liver glycogen content and serum insulin level in diabetic rats in a dose-dependent manner. A significant (p < 0.05) reduction in serum lipid profile markers and elevation in HDL-C after treatment with CfPc, also signifying the protective effects of CfPc in diabetes-associated complications. In addition, CfPc also promoted a significant inhibition of α-amylase enzyme activity with an IC50 value of 40.29 μg/ml. Results indicate that CfPc possess a potential in vitro and in vivo antidiabetic activity and this effect could be due to multitarget mode of action that includes antihyperglycemic, postprandial hypoglycemic, hypolipidemic and insulin secretory actions. Therefore, it could be used as a safer complementary drug in the management of diabetes and associated complications.
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Affiliation(s)
- Lokesh Kumar Soni
- Natural Products Laboratory, Department of Chemistry, University of Rajasthan, Jaipur, Rajasthan, 302004, India
| | - Mahabeer Prasad Dobhal
- Natural Products Laboratory, Department of Chemistry, University of Rajasthan, Jaipur, Rajasthan, 302004, India
| | - Dharmendra Arya
- Reproductive Physiology and Endocrinology Section, Department of Zoology, University of Rajasthan, Jaipur, Rajasthan, 302004, India
| | - Kiran Bhagour
- Reproductive Physiology and Endocrinology Section, Department of Zoology, University of Rajasthan, Jaipur, Rajasthan, 302004, India
| | - Pradeep Parasher
- Department of Chemistry, Govt. P.G. College, Jhalawar, Rajasthan, 326001, India
| | - R S Gupta
- Reproductive Physiology and Endocrinology Section, Department of Zoology, University of Rajasthan, Jaipur, Rajasthan, 302004, India.
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Cytotoxic, analgesic and anti-inflammatory properties of Syzygium calophyllifolium bark. Biomed Pharmacother 2018; 103:1079-1085. [PMID: 29710666 DOI: 10.1016/j.biopha.2018.04.067] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Revised: 04/09/2018] [Accepted: 04/09/2018] [Indexed: 11/24/2022] Open
Abstract
The present study explores the effect of Syzygium calophyllifolium bark methanol (SCBM) extract on pain and inflammation as cancer associated symptoms. The anti-proliferative and cell death-inducing ability of the extract was analysed using MCF-7 breast cancer cells. ATP and LDH levels, along with the cell morphology were noted. The anti-proliferative ability of the extract was examined in relation to pain and inflammation. Analgesic activity was determined using a hot plate, acetic acid and formalin-induced pain models in mice. Acute anti-inflammatory activity was observed in carrageenan and egg albumin induced paw oedema in Wistar rats. Chronic inflammation was induced by placing a cotton pellet under the skin at the axial region of rats. Reduced ATP and increased LDH content indicated the cytotoxic effect of the extract. SCBM at 200 mg/kg dose depicted good activity in acetic acid (77.69%) and formalin (80.81%) induced pain models compared to the standard drug indomethacin. However, only a moderate activity was observed in the hot plate method (53.85%). The higher dose of SCBM was equally effective in anti-inflammatory models. The dose (200 mg/kg) significantly reduced the paw oedema in carrageenan (96.71%) and egg albumin models (54.24%) compared to the control. The chronic inflammation was also inhibited upto 70.46% by SCBM. These activities can be attributed to the phenolic compounds detected in HPLC. The outcome of the study states that the extract can reduce both acute and chronic inflammatory conditions and kill the cancer cells, proposing the dual role of SCBM in treating inflammatory pains in cancer. The result of these studies indicated that wild plants like Syzygium calophyllifolium could be taken forward for a detailed study to accomplish the demand for a better treatment against diseases.
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Somtimuang C, Olatunji OJ, Ovatlarnporn C. Evaluation of In Vitro α
-Amylase and α
-Glucosidase Inhibitory Potentials of 14 Medicinal Plants Constituted in Thai Folk Antidiabetic Formularies. Chem Biodivers 2018; 15:e1800025. [DOI: 10.1002/cbdv.201800025] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Accepted: 02/14/2018] [Indexed: 11/07/2022]
Affiliation(s)
- Chonlatid Somtimuang
- Faculty of Traditional Thai Medicine; Prince of Songkla University; Hat Yai 90112 Thailand
| | | | - Chitchamai Ovatlarnporn
- Department of Pharmaceutical Chemistry; Faculty of Pharmaceutical Sciences; Prince of Songkla University; Hat Yai 90112 Thailand
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Ulusu NN, Gök M, Sayin Şakul AA, Ari N, Stefek M, Karasu Ç. Antioxidant SMe1EC2 modulates pentose phosphate pathway and glutathione-dependent enzyme activities in tissues of aged diabetic rats. Interdiscip Toxicol 2018; 10:148-154. [PMID: 30147422 PMCID: PMC6102677 DOI: 10.1515/intox-2017-0021] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Accepted: 12/10/2017] [Indexed: 12/24/2022] Open
Abstract
The pentose phosphate pathway and glutathione-associated metabolism are the main antioxidant cellular defense systems. This study investigated the effects of the powerful antioxidant SMe1EC2 (2-ethoxycarbonyl-8-methoxy-2,3,4,4a,5,9b-hexahydro-1H-pyrido[4,3-b] indolinium dichloride) on pentose phosphate pathway (PPP) and glutathione-dependent enzyme activities in aged diabetic and aged matched control rats. Diabetes was induced by streptozotocin injection in rats aged 13-15 months. Diabetic and control rats were divided into two subgroups, one untreated and one treated with SMe1EC2 (10 mg/kg/day, orally) for 4 months. SMe1EC2 ameliorated body weight loss, but not hyperglycemia of aged diabetic rats. Diabetes resulted in decreased glucose-6-phosphate dehydrogenase (G6PD), 6-phosphogluconate dehydrogenase (6PGD) and glutathione-S-transferase (GST), yet in unchanged glutathione reductase (GR) in the liver of aged diabetic rats. In the liver of the aged control rats, SMe1EC2 did not affect G6PDH, 6PGDH and GR, but it inhibited GST. SMe1EC2 also failed to affect diabetes-induced decline in 6PGDH, it ameliorated G6PDH but produced further decline in GST in the liver of aged diabetic rats. In the kidney of aged rats, G6PDH and GST were found to be comparable among the groups, but diabetes up-regulated 6PGDH and GR; these alterations were prevented by SMe1EC2. In the heart of aged diabetic rats, while GST remained unchanged, the recorded increase in G6PD, 6PGD, GR was prevented by SMe1EC2. Furthermore, an unchanged GR and remarkable increases in G6PD, 6PGD and GST were found in the lung of the aged diabetic group. These alterations were completely prevented by SMe1EC2. The results suggest that in aged rats SMe1EC2 can ameliorate the response of the kidney, heart and lung but not that of the liver against diabetes-induced glucotoxicity by interfering with the activity of redox network enzymes.
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Affiliation(s)
- Nuray Nuriye Ulusu
- Department of Medical Biochemistry, School of Medicine, Koc University, Istanbul, Turkey
| | - Müslüm Gök
- Department of Biochemistry, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Arzu Ayşe Sayin Şakul
- Department of Pharmacology, Faculty of Medicine, Medipol University, Istanbul, Turkey
| | - Nuray Ari
- Department of Pharmacology, Faculty of Pharmacy, Ankara University, Ankara, Turkey
| | - Milan Stefek
- Department of experimental Pharmacology, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Çimen Karasu
- Cellular Stress Response & Signal Transduction Research Laboratory, Department of Medical Pharmacology, Faculty of Medicine, Gazi University, Ankara, Turkey
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Garg V, Kaur P, Singh SK, Kumar B, Bawa P, Gulati M, Yadav AK. Solid self-nanoemulsifying drug delivery systems for oral delivery of polypeptide-k: Formulation, optimization, in-vitro and in-vivo antidiabetic evaluation. Eur J Pharm Sci 2017; 109:297-315. [DOI: 10.1016/j.ejps.2017.08.022] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 08/14/2017] [Accepted: 08/18/2017] [Indexed: 12/23/2022]
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Sathyanarayanan S, Chandran R, Thankarajan S, Abrahamse H, Thangaraj P. Phytochemical composition, antioxidant and anti-bacterial activity of Syzygium calophyllifolium Walp. fruit. Journal of Food Science and Technology 2017; 55:341-350. [PMID: 29358827 DOI: 10.1007/s13197-017-2944-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 10/16/2017] [Accepted: 10/19/2017] [Indexed: 10/18/2022]
Abstract
Syzygium calophyllifolium fruits are among the important wild edibles used by the tribes of Western Ghats. However, this underutilized fruit remained unnoticed for its medicinal properties. Hence, the present study was undertaken to evaluate the antioxidant activity by DPPH·, ABTS·+, FRAP assays and antibacterial efficacy by well diffusion method. GC-MS and HPLC profiles of crude extract and column chromatographic fractions were also determined. The methanolic extract of fruit (MFE) showed high total phenolics, tannins and flavonoids. The faction H (FH) displayed significant antioxidant property in DPPH· (IC50 2.1 µg/ml), ABTS·+ (19483.29 μM Trolox equivalents/g extract) and FRAP (65.5 mM Fe(II)/mg extract) assays over MFE. Moreover, FH also exhibited good antibacterial activity against Escherichia coli (32.0 mm), Salmonella typhi (27.0 mm), Staphylococcus aureus (27.3 mm) at 100 mg/ml concentration. GC-MS revealed 12 major compounds in MFE, HPLC analysis of MFE and FH depicted the presence of rutin and ellagic acid. This study suggested that FH could have high concentration of bioactive compounds like rutin and ellagic acid or its analogues compared to MFE which may be responsible for its strong antioxidant and antibacterial activity.
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Affiliation(s)
- Saikumar Sathyanarayanan
- 1Bioprospecting Laboratory, Department of Botany, Bharathiar University, Coimbatore, 641 046 Tamil Nadu India
| | - Rahul Chandran
- 2Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, Johannesburg, 17011 South Africa
| | - Sajeesh Thankarajan
- 1Bioprospecting Laboratory, Department of Botany, Bharathiar University, Coimbatore, 641 046 Tamil Nadu India.,3Department of Botany, Mar Ivanios College (Autonomous), Thiruvananthapuram, Kerala India
| | - Heidi Abrahamse
- 2Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, Johannesburg, 17011 South Africa
| | - Parimelazhagan Thangaraj
- 1Bioprospecting Laboratory, Department of Botany, Bharathiar University, Coimbatore, 641 046 Tamil Nadu India
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Coskun ZM, Koyuturk M, Karabulut S, Bolkent S. CB-1R and GLP-1R gene expressions and oxidative stress in the liver of diabetic rats treated with sitagliptin. Pharmacol Rep 2017; 69:822-829. [PMID: 28599244 DOI: 10.1016/j.pharep.2017.03.013] [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: 01/12/2017] [Revised: 03/09/2017] [Accepted: 03/16/2017] [Indexed: 02/07/2023]
Abstract
BACKGROUND Type 2 diabetes is a major health problem affecting millions of people. Controlled eating and regular physical activity are important for the management of type 2 diabetes. Dipeptidyl peptidase-4 enzyme (DPP-4) inhibitor sitagliptin is a potent agent for the treatment of type-2 diabetes. The aim of this study was to examine the effects of sitagliptin on the liver of rats with streptozotocin (STZ)-induced diabetes, in terms of (i) the expression levels of the cannabinoid 1 receptor (CB-1R) and glucagon-like peptide 1 receptor (GLP-1R), (ii) alterations in the number and localization of these peptides, and (iii) changes in histological and oxidative damage. METHODS Thirty-two neonatal (two-day-old) rats, which were divided into four groups, were treated with saline (control), sitagliptin (control; 1.5mg/kg/day for 15 days starting from day 5 of the experimental period), STZ (diabetes; 100mg/kg single dose), STZ+sitagliptin (diabetes+sitagliptin). After 20 days, hepatic tissues were obtained from rats. RESULTS The expressions of GLP-1R and CB-1R mRNA increased approximately 1.89- and 2.94-fold, respectively, in the diabetes+sitagliptin group as compared to the diabetic group. Additionally the number of GLP-1R immunopositive cells decreased and CB-1R immunopositive cells increased in comparison to the diabetic group; however, this was not statistically significant. Glutathione levels increased, but malondialdehyde and protein carbonyl levels decreased in the diabetes+sitagliptin group more than the diabetic group. CONCLUSION Our findings indicate that sitagliptin treatment regulates GLP-1R and CB-1R gene expressions, which are associated with appetite regulation in diabetic rat, and may decrease oxidative stress and liver tissue damage.
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Affiliation(s)
- Zeynep Mine Coskun
- Department of Molecular Biology and Genetics, Faculty of Arts and Sciences, Istanbul Bilim University, Istanbul, Turkey
| | - Meral Koyuturk
- Department of Histology and Embryology, Faculty of Cerrahpasa Medicine, Istanbul University, Istanbul, Turkey
| | - Sezin Karabulut
- Department of Medical Biology, Faculty of Cerrahpasa Medicine, Istanbul University, Istanbul, Turkey
| | - Sema Bolkent
- Department of Medical Biology, Faculty of Cerrahpasa Medicine, Istanbul University, Istanbul, Turkey.
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Baldissera G, Sperotto NDM, Rosa HT, Henn JG, Peres VF, Moura DJ, Roehrs R, Denardin ELG, Dal Lago P, Nunes RB, Saffi J. Effects of crude hydroalcoholic extract of Syzygium cumini (L.) Skeels leaves and continuous aerobic training in rats with diabetes induced by a high-fat diet and low doses of streptozotocin. JOURNAL OF ETHNOPHARMACOLOGY 2016; 194:1012-1021. [PMID: 27794509 DOI: 10.1016/j.jep.2016.10.056] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Revised: 10/11/2016] [Accepted: 10/19/2016] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The leaves of Syzygium cumini (L.) or Skeels (Myrtaceae) are widely used in Brazilian folk medicine to treat diabetes. AIM OF THE STUDY The present study evaluated the functional capacity, biochemical parameters, oxidative stress and DNA damage from eight weeks of intervention with a crude hydroalcoholic extract of S. cumini leaves (EBH) and continuous aerobic training (TAC) in diabetic (D) rats. MATERIALS AND METHODS A hydroalcoholic (50%) extract was prepared by ultrasound and phytochemical parameters (total phenols, total tannins and myricetin content) were analyzed. Thirty-seven male Wistar rats were divided into five groups: normoglycemic controls (CONT), diabetic controls (D-CONT), diabetics treated with extract (D+EBH), trained diabetic (D+TAC) and diabetics treated with extract and trained (D+EBH+TAC). Functional capacity was assessed with a maximum exercise capacity test; biochemical parameters with enzymatic kits; oxidative stress by superoxide dismutase (SOD), catalase (CAT), thiobarbituric acid reactive substances (TBARS) and oxidized dichlorofluorescein (DCF), and the DNA damage by the comet assay. RESULTS The D+TAC and D+EBH+TAC groups showed better functional capacity at the end of interventions. The D+EBH group showed glucose and triglyceride reduction, lowest DNA damage index in the blood, liver, kidney, heart, lung and gastrocnemius muscle, improved SOD levels in the liver, kidney and lung, improved CAT levels in the kidney and lower lipid peroxidation in all tissues studied, compared to the D-CONT group. The exercise (D+TAC) was effective in reducing triglycerides, improving SOD levels in the lung, reducing lipid peroxidation in all tissues studied and reducing the DCF oxidation in the kidney, in addition to protecting against DNA damage in the blood and heart. However, the additive effect of the intervention protocols when combined (EBH+TAC) was observed only in improving the gastrocnemius SOD levels. The phytochemical analyses showed a high content of phenols and the presence of myricetin glycosides. CONCLUSION The findings in this study suggest a crude hydroalcoholic extract of S. cumini leaves has potential hypoglycemic, hypolipidemic and protective properties acting against oxidative stress and against DNA damage, probably due to its phenols and myricetin glycoside content and the antioxidant properties of these constituents. Moreover, exercise was suggested to have beneficial effects on diabetes, improving functional capacity, ameliorating blood triglyceride control and decreasing lipid peroxidation, but with no effects on ameliorating blood glucose levels. The association of intervention protocols presented an additive effect on the antioxidant SOD activity in the muscle cells of diabetic rats.
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Affiliation(s)
- G Baldissera
- Laboratory of Genetic Toxicology - UFCSPA, Brazil
| | | | - H T Rosa
- Laboratory of Genetic Toxicology - UFCSPA, Brazil
| | - J G Henn
- Laboratory of Genetic Toxicology - UFCSPA, Brazil
| | - V F Peres
- Laboratory of Genetic Toxicology - UFCSPA, Brazil
| | - D J Moura
- Laboratory of Genetic Toxicology - UFCSPA, Brazil
| | - R Roehrs
- Laboratory of Physicochemical and Natural Products - Federal University of Pampa, Brazil
| | - E L G Denardin
- Laboratory of Physicochemical and Natural Products - Federal University of Pampa, Brazil
| | - P Dal Lago
- Laboratory of Experimental Physiology - UFCSPA, Brazil
| | - R B Nunes
- Laboratory of Experimental Physiology - UFCSPA, Brazil
| | - J Saffi
- Laboratory of Genetic Toxicology - UFCSPA, Brazil.
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