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Wang HP, Lin ZZ, Zhao C, Yin Q, Jia J. Screening of potential α-glucosidase inhibitors from astragalus membranaceus by affinity ultrafiltration screening coupled with UPLC-ESI-Orbitrap-MS method. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2024:1-10. [PMID: 38869219 DOI: 10.1080/10286020.2024.2366007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Accepted: 06/04/2024] [Indexed: 06/14/2024]
Abstract
Astragalus membranaceus is a traditional Chinese medicine with multiple pharmacological activities. Modern pharmacological research has found that Astragalus membranaceus extract has an inhibitory effect on α-glucosidase, however, which component can inhibit the activity of α-glucosidase and its degree of inhibition are unknown. To address this issue, this study used affinity ultrafiltration screening combined with UPLC-ESI-Orbitrap-MS technology to screen α-glucosidase inhibitors in Astragalus membranaceus. Using affinity ultrafiltration technology, we obtained the active components, and using UPLC-ESI-Orbitrap-MS technology, we quickly analyzed and identified them. As a result, a total of 8 ingredients were selected as α-glucosidase inhibitors.
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Affiliation(s)
- Hong-Ping Wang
- Scientific Research Institute of Beijing Tongrentang Co., Ltd, Beijing 100011, China
| | - Zhao-Zhou Lin
- Beijing Zhongyan Tongrentang Pharmaceutical R & D Co., Ltd., National Engineering Research Center for R&D of TCM Multi-ingredient Drugs, Beijing 100000, China
| | - Chen Zhao
- Scientific Research Institute of Beijing Tongrentang Co., Ltd, Beijing 100011, China
| | - Qiong Yin
- Scientific Research Institute of Beijing Tongrentang Co., Ltd, Beijing 100011, China
| | - Jun Jia
- Scientific Research Institute of Beijing Tongrentang Co., Ltd, Beijing 100011, China
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Liu S, Wang L, Zhang Z, Leng Y, Yang Y, Fu X, Xie H, Gao H, Xie C. The potential of astragalus polysaccharide for treating diabetes and its action mechanism. Front Pharmacol 2024; 15:1339406. [PMID: 38659573 PMCID: PMC11039829 DOI: 10.3389/fphar.2024.1339406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Accepted: 03/26/2024] [Indexed: 04/26/2024] Open
Abstract
Type 2 diabetes presents a significant global health burden and is frequently linked to serious clinical complications, including diabetic cardiomyopathy, nephropathy, and retinopathy. Astragalus polysaccharide (APS), extracted from Astragalus membranaceus, exhibits various biochemical and physiological effects. In recent years, a growing number of researchers have investigated the role of APS in glucose control and the treatment of diabetes and its complications in various diabetes models, positioning APS as a promising candidate for diabetes therapy. This review surveys the literature on APS from several databases over the past 20 years, detailing its mechanisms of action in preventing and treating diabetes mellitus. The findings indicate that APS can address diabetes by enhancing insulin resistance, modulating the immune system, protecting islet cells, and improving the intestinal microbiota. APS demonstrates positive pharmacological value and clinical potential in managing diabetic complications, including diabetic retinopathy, nephropathy, cardiomyopathy, cognitive dysfunction, wound healing, and more. However, further research is necessary to explore APS's bioavailability, optimal dosage, and additional clinical evidence.
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Affiliation(s)
- Shiyu Liu
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Luyao Wang
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Zehua Zhang
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - YuLin Leng
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Yan Yang
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Xiaoxu Fu
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
- TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Chengdu, Sichuan, China
- Department of Endocrinology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Hongyan Xie
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
- TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Chengdu, Sichuan, China
- Department of Endocrinology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Hong Gao
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
- TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Chengdu, Sichuan, China
- Department of Endocrinology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Chunguang Xie
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
- TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Chengdu, Sichuan, China
- Department of Endocrinology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
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Liu Y, Yu R, Wang X, Chen Y, Yin T, Gao Q, Sun L, Zheng Z. Research progress of the effective active ingredients of Astragalus mongholicus in the treatment of diabetic peripheral neuropathy. Biomed Pharmacother 2024; 173:116350. [PMID: 38430632 DOI: 10.1016/j.biopha.2024.116350] [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: 12/06/2023] [Revised: 02/15/2024] [Accepted: 02/23/2024] [Indexed: 03/05/2024] Open
Abstract
Diabetic peripheral neuropathy (DPN) is one of the most prevalent consequences of diabetes, with a high incidence and disability rate. The DPN's pathogenesis is extremely complex and yet to be fully understood. Persistent high glucose metabolism, nerve growth factor deficiency, microvascular disease, oxidative stress, peripheral nerve cell apoptosis, immune factors, and other factors have been implicated in the pathogenesis of DPN. Astragalus mongholicus is a commonly used plant used to treat DPN in clinical settings. Its rich chemical components mainly include Astragalus polysaccharide, Astragalus saponins, Astragalus flavones, etc., which play a vital role in the treatment of DPN. This review aimed to summarize the pathogenesis of DPN and the studies on the mechanism of the effective components of Astragalus mongholicus in treating DPN. This is of great significance for the effective use of Chinese herbal medicine and the promotion of its status and influence on the world.
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Affiliation(s)
- Yulian Liu
- Department of Rehabilitation Medicine,The Affiliated Taian City Central Hospital of Qingdao University, Taian 271000, China
| | - Runyuan Yu
- Department of Rehabilitation Medicine,The Affiliated Taian City Central Hospital of Qingdao University, Taian 271000, China
| | - Xiaoyu Wang
- Department of Rehabilitation Medicine,The Affiliated Taian City Central Hospital of Qingdao University, Taian 271000, China
| | - Yuexia Chen
- Department of Skills Training Center,The Affiliated Taian City Central Hospital of Qingdao University, Taian 271000, China
| | - Tao Yin
- Department of Rehabilitation Medicine,The Affiliated Taian City Central Hospital of Qingdao University, Taian 271000, China
| | - Qiang Gao
- Department of Rehabilitation Medicine,The Affiliated Taian City Central Hospital of Qingdao University, Taian 271000, China
| | - Limin Sun
- Department of Rehabilitation Medicine,The Affiliated Taian City Central Hospital of Qingdao University, Taian 271000, China
| | - Zuncheng Zheng
- Department of Rehabilitation Medicine,The Affiliated Taian City Central Hospital of Qingdao University, Taian 271000, China.
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Li L, Xie J, Zhang Z, Xia B, Li Y, Lin Y, Li M, Wu P, Lin L. Recent advances in medicinal and edible homologous plant polysaccharides: Preparation, structure and prevention and treatment of diabetes. Int J Biol Macromol 2024; 258:128873. [PMID: 38141704 DOI: 10.1016/j.ijbiomac.2023.128873] [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: 07/03/2023] [Revised: 11/27/2023] [Accepted: 12/16/2023] [Indexed: 12/25/2023]
Abstract
Medicinal and edible homologs (MEHs) can be used in medicine and food. The National Health Commission announced that a total of 103 kinds of medicinal and edible homologous plants (MEHPs) would be available by were available in 2023. Diabetes mellitus (DM) has become the third most common chronic metabolic disease that seriously threatens human health worldwide. Polysaccharides, the main component isolated from MEHPs, have significant antidiabetic effects with few side effects. Based on a literature search, this paper summarizes the preparation methods, structural characterization, and antidiabetic functions and mechanisms of MEHPs polysaccharides (MEHPPs). Specifically, MEHPPs mainly regulate PI3K/Akt, AMPK, cAMP/PKA, Nrf2/Keap1, NF-κB, MAPK and other signaling pathways to promote insulin secretion and release, improve glycolipid metabolism, inhibit the inflammatory response, decrease oxidative stress and regulate intestinal flora. Among them, 16 kinds of MEHPPs were found to have obvious anti-diabetic effects. This article reviews the prevention and treatment of diabetes and its complications by MEHPPs and provides a basis for the development of safe and effective MEHPP-derived health products and new drugs to prevent and treat diabetes.
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Affiliation(s)
- Lan Li
- College of Pharmacy, Hunan University of Chinese Medicine, No. 300 Xueshi Road, Yuelu District, Changsha 410208, China; Key Laboratory for Quality Evaluation of Bulk Herbs of Hunan Province, Hunan University of Chinese Medicine, No. 300 Xueshi Road, Yuelu District, Changsha 410208, China
| | - Jingchen Xie
- College of Pharmacy, Hunan University of Chinese Medicine, No. 300 Xueshi Road, Yuelu District, Changsha 410208, China; Key Laboratory for Quality Evaluation of Bulk Herbs of Hunan Province, Hunan University of Chinese Medicine, No. 300 Xueshi Road, Yuelu District, Changsha 410208, China
| | - Zhimin Zhang
- College of Pharmacy, Hunan University of Chinese Medicine, No. 300 Xueshi Road, Yuelu District, Changsha 410208, China; Key Laboratory for Quality Evaluation of Bulk Herbs of Hunan Province, Hunan University of Chinese Medicine, No. 300 Xueshi Road, Yuelu District, Changsha 410208, China
| | - Bohou Xia
- College of Pharmacy, Hunan University of Chinese Medicine, No. 300 Xueshi Road, Yuelu District, Changsha 410208, China; Key Laboratory for Quality Evaluation of Bulk Herbs of Hunan Province, Hunan University of Chinese Medicine, No. 300 Xueshi Road, Yuelu District, Changsha 410208, China
| | - Yamei Li
- College of Pharmacy, Hunan University of Chinese Medicine, No. 300 Xueshi Road, Yuelu District, Changsha 410208, China; Key Laboratory for Quality Evaluation of Bulk Herbs of Hunan Province, Hunan University of Chinese Medicine, No. 300 Xueshi Road, Yuelu District, Changsha 410208, China
| | - Yan Lin
- College of Pharmacy, Hunan University of Chinese Medicine, No. 300 Xueshi Road, Yuelu District, Changsha 410208, China; Key Laboratory for Quality Evaluation of Bulk Herbs of Hunan Province, Hunan University of Chinese Medicine, No. 300 Xueshi Road, Yuelu District, Changsha 410208, China
| | - Minjie Li
- College of Pharmacy, Hunan University of Chinese Medicine, No. 300 Xueshi Road, Yuelu District, Changsha 410208, China; Key Laboratory for Quality Evaluation of Bulk Herbs of Hunan Province, Hunan University of Chinese Medicine, No. 300 Xueshi Road, Yuelu District, Changsha 410208, China
| | - Ping Wu
- College of Pharmacy, Hunan University of Chinese Medicine, No. 300 Xueshi Road, Yuelu District, Changsha 410208, China; Key Laboratory for Quality Evaluation of Bulk Herbs of Hunan Province, Hunan University of Chinese Medicine, No. 300 Xueshi Road, Yuelu District, Changsha 410208, China.
| | - Limei Lin
- College of Pharmacy, Hunan University of Chinese Medicine, No. 300 Xueshi Road, Yuelu District, Changsha 410208, China; Key Laboratory for Quality Evaluation of Bulk Herbs of Hunan Province, Hunan University of Chinese Medicine, No. 300 Xueshi Road, Yuelu District, Changsha 410208, China.
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Wen J, Hu D, Wang R, Liu K, Zheng Y, He J, Chen X, Zhang Y, Zhao X, Bu Y, Song B, Wang L, Wang K. Astragalus polysaccharides driven stretchable nanofibrous membrane wound dressing for joint wound healing. Int J Biol Macromol 2023; 248:125557. [PMID: 37364811 DOI: 10.1016/j.ijbiomac.2023.125557] [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: 02/27/2023] [Revised: 06/20/2023] [Accepted: 06/22/2023] [Indexed: 06/28/2023]
Abstract
Joint wound dressings are currently significantly limited in their clinical applications due to their inferior mechanical properties and single therapeutic effect. Therefore, it is imperative to develop a versatile joint wound dressing that integrates adequate stretchability, desirable biocompatibility, and multiple biological effects into one system. We implemented the electrospinning technique in this study to fabricate a novel nanofibrous membrane (NFM) composed of gelatin (GEL) and astragalus polysaccharides (APS), termed GEL/APS NFM. The selection of GEL and APS confers excellent biocompatibility to GEL/APS NFM. Furthermore, the optimally proportioned GEL/APS NFM exhibits satisfactory stretchability and desirable wound healing efficiency. Furthermore, released APS can exert anti-inflammatory, procollagen deposition, and proangiogenic effects to accelerate epithelial tissue, enhancing joint wound healing. In summary, GEL/APS NFM offers a convenient and effective approach to promoting rapid joint wound healing, providing a novel approach to joint wound care.
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Affiliation(s)
- Jinpeng Wen
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, China
| | - Datao Hu
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, China
| | - Ruisi Wang
- School of Pharmacy, Shenyang Pharmaceutical University, Benxi 110016, China
| | - Kailai Liu
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, China
| | - Yunhe Zheng
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, China
| | - Jiangchuan He
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, China
| | - Xi Chen
- Department of Pharmacy, The Second Affiliated Hospital of Air Force Medical University, Xi'an, China
| | - Yuchen Zhang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, China
| | - Xinxin Zhao
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, China
| | - Yizhuo Bu
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, China
| | - Botao Song
- College of Chemistry and Materials Science, Northwest University, Xi'an 710069, Shaanxi, China.
| | - Lin Wang
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, China.
| | - Ke Wang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, China.
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Liu Y, Cai J, Wang Y, Zhao X, Qiao Y, Liu CJ. YQBS Improves Cognitive Dysfunction in Diabetic Rats: Possible Association with Tyrosine and Tryptophan Metabolism. Diabetes Metab Syndr Obes 2023; 16:901-912. [PMID: 37021127 PMCID: PMC10069430 DOI: 10.2147/dmso.s401863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Accepted: 03/18/2023] [Indexed: 04/03/2023] Open
Abstract
OBJECTIVE This study is aimed to determine the metabolomic effects of the hybrid medicine formula Yi-Qi-Bu-Shen (YQBS) on the neurotransmitter aspects of cognitive impairment in diabetic rats. METHODS In the current study, streptozotocin (STZ) was used to induce diabetic animal model in male Sprague Dawley (SD) rats. After successful establishment of diabetic SD rats' model, age-matched healthy SD rats and diabetic SD rats were treated with low and high doses of YQBS, and then tested for learning memory ability and analyzed for pathological changes. In addition, neurotransmitter metabolic changes in hippocampal subdivisions of rats from different treated groups were analyzed using liquid chromatography-mass spectrometry (LC-MS) technique. RESULTS YQBS could significantly improve memory-cognitive impairment in diabetic rats as evidenced by the shortening of latency to target and the reduction of latency first entrance to target. Moreover, YQBS also improved the pathological alterations in the hippocampal region in the brains of diabetic rats. Metabolomic analysis showed that the expression of noradrenaline hydrochloride was down-regulated and the expressions of levodopa and 5-hydroxytryptophan were up-regulated in the hippocampal tissues of diabetic rats treated with YQBS. CONCLUSION These findings demonstrate that YQBS has protective effects against diabetic cognitive dysfunction, which might act through alteration in tyrosine and tryptophan metabolism.
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Affiliation(s)
- Yuzhao Liu
- Department of Endocrinology, the Affiliated Hospital of Qingdao University, Qingdao, People’s Republic of China
| | - Jingru Cai
- Shandong University of Traditional Chinese Medicine, Jinan, People’s Republic of China
| | - Yangang Wang
- Department of Endocrinology, the Affiliated Hospital of Qingdao University, Qingdao, People’s Republic of China
| | - Xiangli Zhao
- Department of Orthopaedic Surgery, New York University Grossman School of Medicine, New York, NY, USA
| | - Yun Qiao
- Department of Traditional Chinese Medicine, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, People’s Republic of China
- Correspondence: Yun Qiao; Chuan-Ju Liu, Email ;
| | - Chuan-Ju Liu
- Department of Orthopaedic Surgery, New York University Grossman School of Medicine, New York, NY, USA
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Yu X, Xia K, Wu S, Wang Q, Cheng W, Ji C, Yang W, Kang C, Yuan Z, Li Y. Simultaneous Determination and Pharmacokinetic Study of Six Components in Beagle Dog Plasma by UPLC-MS/MS after Oral Administration of Astragalus Membranaceus Aqueous Extract. Biomed Chromatogr 2022; 36:e5488. [PMID: 36001467 DOI: 10.1002/bmc.5488] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 08/18/2022] [Accepted: 08/22/2022] [Indexed: 11/07/2022]
Abstract
Astragalus Membranaceus (AM) is widely applied in Chinese herbal compound formulas for treating various kinds of diseases. However, relative pharmacokinetics (PK) data on AM in non-rodents is still lacking. Here, an UPLC-MS/MS method for determining six main compounds of AM was developed. The chromatographic separation was carried out by a Waters Acquity UPLC HSS T3 column (100 × 2.1 mm, 1.8 μm) with gradient elution of water - formic acid (99.98:0.02, v/v), and acetonitrile - formic acid (99.98:0.02, v/v) at a flow rate of 0.3 mL/min within 11 min. Analyses of all compounds were conducted in multiple reaction monitoring (MRM) mode with a positive/negative (P/N) ion-switching mode of electrospray ionization (ESI) source in a single run. The analytical method was validated in terms of specificity, linearity, accuracy, precision, stability, etc. The method showed excellent linearity (r > 0.999) over certain concentration ranges. The intra-day and inter-day precisions were evaluated, and the RSD values were less than 12.4%. Furthermore, the validated method was successfully applied to determine the six components in plasma after oral administration of AM aqueous extract to beagle dogs and obtained pharmacokinetic parameters. Together, this study provides a reference for medication in the clinical practice of AM.
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Affiliation(s)
- Xin Yu
- Center for DMPK Research of Herbal Medicines, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Kexin Xia
- Center for DMPK Research of Herbal Medicines, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Siyang Wu
- Center for DMPK Research of Herbal Medicines, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Qiutao Wang
- School of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Wenhao Cheng
- School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing, China
| | - Chun Ji
- School of pharmaceutical science, Guizhou University, Guizhou, China
| | - Wei Yang
- Center for DMPK Research of Herbal Medicines, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Chen Kang
- Center for DMPK Research of Herbal Medicines, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Zheng Yuan
- Center for DMPK Research of Herbal Medicines, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yingfei Li
- Center for DMPK Research of Herbal Medicines, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
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Zhang X, Hu ZT, Li Y, Li YX, Xian M, Guo SM, Hu JH. Effect of Astragalus polysaccharides on the cryopreservation of goat semen. Theriogenology 2022; 193:47-57. [DOI: 10.1016/j.theriogenology.2022.08.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 04/05/2022] [Accepted: 08/04/2022] [Indexed: 11/26/2022]
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Network Pharmacology and Molecular Docking Analysis on Pharmacological Mechanisms of Astragalus membranaceus in the Treatment of Gastric Ulcer. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2022; 2022:9007396. [PMID: 35140802 PMCID: PMC8820867 DOI: 10.1155/2022/9007396] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 12/09/2021] [Accepted: 01/12/2022] [Indexed: 12/18/2022]
Abstract
BACKGROUND Astragalus membranaceus (AM, family: Leguminosae) exerts significant therapeutic effect on gastric ulcer (GU); however, there are scarce studies on its molecular mechanism against GU. This study aims to explore the key ingredients, key targets, and potential mechanisms of AM in the treatment of GU by utilizing network pharmacology and molecular docking. METHODS Several public databases were used to predict the targets of AM and GU, respectively, and the drug and disease targets were intersected to obtain the common targets. Next, the key ingredients and key targets were identified by constructing ingredient-target network and protein-protein-interaction (PPI) network. Gene Ontology biological processes (GOBP) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis were carried out on the common targets in order to ascertain the biological processes and signaling pathways involved. Finally, molecular docking was conducted to verify the binding affinity between the key ingredients and key targets. RESULTS A total of 552 predicted targets were obtained from 23 screened active ingredients, of which 203 targets were the common targets with GU. Quercetin, kaempferol, and isorhamnetin were identified as the key ingredients by constructing ingredient-target network, and TP53, AKT1, VEGFA, IL6, TNF, CASP3, and EGFR were selected as the key targets by constructing PPI network. GOBP and KEGG pathway enrichment analysis suggested that the therapeutic effect of AM on GU involved multiple biological processes and signaling pathways related to inflammation, oxidative stress, apoptosis, cell proliferation, and angiogenesis. Molecular docking validation demonstrated that all key ingredients had good binding affinity with the key targets. CONCLUSION This study revealed the key ingredients, key targets, and potential mechanisms of AM against GU, and these data may provide some crucial references for subsequent research and development of drugs for treating GU.
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Zhang S, Song P, Chen X, Wang Y, Gao X, Liang L, Zhao J. Astragalus polysaccharide regulates brown adipocytes differentiation by miR-6911 targeting Prdm16. Lipids 2021; 57:45-55. [PMID: 34738642 DOI: 10.1002/lipd.12328] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 10/15/2021] [Accepted: 10/21/2021] [Indexed: 01/22/2023]
Abstract
Brown adipose tissue (BAT) is a specialized tissue in mammals related to thermogenesis. The Astragalus polysaccharide (APS) is the major natural active component of Astragalus membranaceus, which has been recognized as one of the most popular herbal medicines worldwide. The role and possible mechanisms of APS on brown adipocytes differentiation is not well defined. Here, we explored the effect of APS on the differentiation of brown adipocytes in C3H10T 1/2 cells. The results showed that APS promoted the differentiation of brown adipocytes and improved insulin sensitivity along with significant increases in the expression of brown adipogenic marker proteins (C/EBPα, C/EBPβ, and PPARγ), thermogenesis marker proteins (UCP1, PRDM16, and PGC-1α), and insulin sensitivity marker protein (GLUT4). Meanwhile, the results showed that the amount of the phosphorylation of insulin receptor substrate 1 (p-IRS1) and phospho-AKT (p-AKT) which are critical factors in the insulin signaling pathway was increased without changing the total amount of IRS and AKT. Furthermore, the results of RNA-seq showed that APS altered the expression profiles of various miRNAs, and among which the expression of miR-6911 as a universal regulatory factor was significantly decreased. Importantly, we found that miR-6911 regulated the differentiation of brown adipocytes by targeting PR domain-containing 16 (Prdm16). In addition, after transfection of miR-6911 mimics, compared with the control and inhibitor group, PRDM16 protein expression significantly decreased, which was accompanied by the decrease of PPARγ, UCP1, and PGC-1α. Collectively, our results indicated that APS regulated brown adipocytes differentiation in C3H10T 1/2 cells via miRNA-6911 targeting Prdm16.
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Affiliation(s)
- Shihe Zhang
- College of Animal Sciences, Shanxi Agricultural University, Taigu, China
| | - Pengkang Song
- College of Animal Sciences, Shanxi Agricultural University, Taigu, China
| | - Xiaoyou Chen
- College of Animal Sciences, Shanxi Agricultural University, Taigu, China
| | - Yu Wang
- College of Animal Sciences, Shanxi Agricultural University, Taigu, China
| | - Xuyang Gao
- College of Animal Sciences, Shanxi Agricultural University, Taigu, China
| | - Lin Liang
- College of Animal Sciences, Shanxi Agricultural University, Taigu, China
| | - Junxing Zhao
- College of Animal Sciences, Shanxi Agricultural University, Taigu, China
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Ingram DK, Roth GS. Glycolytic inhibition: an effective strategy for developing calorie restriction mimetics. GeroScience 2021; 43:1159-1169. [PMID: 33184758 PMCID: PMC8190254 DOI: 10.1007/s11357-020-00298-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 11/05/2020] [Indexed: 12/20/2022] Open
Abstract
Calorie restriction mimetics encompass a growing research field directed toward developing treatments that mimic the anti-aging effects of long-term calorie restriction without requiring a change in eating habits. A wide range of approaches have been identified that include (1) intestinal inhibitors of fat and carbohydrate metabolism; (2) inhibitors of intracellular glycolysis; (3) stimulators of the AMPK pathway; (4) sirtuin activators; (5) inhibitors of the mTOR pathway, and (6) polyamines. Several biotech companies have been formed to pursue several of these strategies. The objective of this review is to describe the approaches directed toward glycolytic inhibition. This upstream strategy is considered an effective means to invoke a wide range of anti-aging mechanisms induced by CR. Anti-cancer and anti-obesity effects are important considerations in early development efforts. Although many dozens of candidates could be discussed, the compounds selected to be reviewed are the following: 2-deoxyglucose, 3-bromopyruvate, chrysin, genistein, astragalin, resveratrol, glucosamine, mannoheptulose, and D-allulose. Some candidates have been investigated extensively with both positive and negative results, while others are only beginning to be studied.
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Affiliation(s)
- Donald K. Ingram
- Pennington Biomedical Research Center, Louisiana State University, 6400 Perkins Road, Baton Rouge, LA 70809 USA
| | - George S. Roth
- GeroScience, Inc., 1124 Ridge Road, Pylesville, MD 21132 USA
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12
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Mu S, Yang W, Huang G. Antioxidant activities and mechanisms of polysaccharides. Chem Biol Drug Des 2020; 97:628-632. [DOI: 10.1111/cbdd.13798] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 08/18/2020] [Accepted: 09/03/2020] [Indexed: 12/24/2022]
Affiliation(s)
- Si Mu
- Active Carbohydrate Research Institute Chongqing Key Laboratory of Green Synthesis and Application College of Chemistry Chongqing Normal University Chongqing China
| | - Wenjian Yang
- Active Carbohydrate Research Institute Chongqing Key Laboratory of Green Synthesis and Application College of Chemistry Chongqing Normal University Chongqing China
| | - Gangliang Huang
- Active Carbohydrate Research Institute Chongqing Key Laboratory of Green Synthesis and Application College of Chemistry Chongqing Normal University Chongqing China
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Antioxidant Effects and Mechanisms of Medicinal Plants and Their Bioactive Compounds for the Prevention and Treatment of Type 2 Diabetes: An Updated Review. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:1356893. [PMID: 32148647 PMCID: PMC7042557 DOI: 10.1155/2020/1356893] [Citation(s) in RCA: 96] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 12/31/2019] [Accepted: 01/16/2020] [Indexed: 12/14/2022]
Abstract
Diabetes mellitus is a metabolic disorder that majorly affects the endocrine gland, and it is symbolized by hyperglycemia and glucose intolerance owing to deficient insulin secretory responses and beta cell dysfunction. This ailment affects as many as 451 million people worldwide, and it is also one of the leading causes of death. In spite of the immense advances made in the development of orthodox antidiabetic drugs, these drugs are often considered not successful for the management and treatment of T2DM due to the myriad side effects associated with them. Thus, the exploration of medicinal herbs and natural products as therapeutic sources for the treatment of T2DM is promoted because they have little or no side effects. Bioactive molecules isolated from natural sources have been proven to lower blood glucose levels via regulating one or more of the following mechanisms: improvement of beta cell function, insulin resistance, glucose (re)absorption, and glucagon-like peptide-1 homeostasis. In recent times, the mechanisms of action of different bioactive molecules with antidiabetic properties and phytochemistry are gaining a lot of attention in the area of drug discovery. This review article presents an update of the findings from clinical research into medicinal plant therapy for T2DM.
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Popular functional foods and herbs for the management of type-2-diabetes mellitus: A comprehensive review with special reference to clinical trials and its proposed mechanism. J Funct Foods 2019. [DOI: 10.1016/j.jff.2019.04.039] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
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15
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Wulamu S, Yimamu H, Abuduwaili A, Mutailifu P, Maksimov VV, Gao YH, Yili A, Aisa HA. Determination of the Inhibitory Activity of Ferula sinkiangensis Polysaccharides for Protein Tyrosine Phosphatase 1B. Chem Nat Compd 2019. [DOI: 10.1007/s10600-019-02657-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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16
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Guo Z, Lou Y, Kong M, Luo Q, Liu Z, Wu J. A Systematic Review of Phytochemistry, Pharmacology and Pharmacokinetics on Astragali Radix: Implications for Astragali Radix as a Personalized Medicine. Int J Mol Sci 2019; 20:E1463. [PMID: 30909474 PMCID: PMC6470777 DOI: 10.3390/ijms20061463] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Accepted: 03/20/2019] [Indexed: 12/17/2022] Open
Abstract
Astragali radix (AR) is one of the most widely used traditional Chinese herbal medicines. Modern pharmacological studies and clinical practices indicate that AR possesses various biological functions, including potent immunomodulation, antioxidant, anti-inflammation and antitumor activities. To date, more than 200 chemical constituents have been isolated and identified from AR. Among them, isoflavonoids, saponins and polysaccharides are the three main types of beneficial compounds responsible for its pharmacological activities and therapeutic efficacy. After ingestion of AR, the metabolism and biotransformation of the bioactive compounds were extensive in vivo. The isoflavonoids and saponins and their metabolites are the major type of constituents absorbed in plasma. The bioavailability barrier (BB), which is mainly composed of efflux transporters and conjugating enzymes, is expected to have a significant impact on the bioavailability of AR. This review summarizes studies on the phytochemistry, pharmacology and pharmacokinetics on AR. Additionally, the use of AR as a personalized medicine based on the BB is also discussed, which may provide beneficial information to achieve a better and more accurate therapeutic response of AR in clinical practice.
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Affiliation(s)
- Zhenzhen Guo
- Joint Laboratory for Translational Cancer Research of Chinese Medicine of the Ministry of Education of the People's Republic of China, International Institute for Translational Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, China.
| | - Yanmei Lou
- Joint Laboratory for Translational Cancer Research of Chinese Medicine of the Ministry of Education of the People's Republic of China, International Institute for Translational Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, China.
| | - Muyan Kong
- Joint Laboratory for Translational Cancer Research of Chinese Medicine of the Ministry of Education of the People's Republic of China, International Institute for Translational Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, China.
| | - Qing Luo
- Joint Laboratory for Translational Cancer Research of Chinese Medicine of the Ministry of Education of the People's Republic of China, International Institute for Translational Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, China.
| | - Zhongqiu Liu
- Joint Laboratory for Translational Cancer Research of Chinese Medicine of the Ministry of Education of the People's Republic of China, International Institute for Translational Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, China.
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau (SAR) 999078, China.
| | - Jinjun Wu
- Joint Laboratory for Translational Cancer Research of Chinese Medicine of the Ministry of Education of the People's Republic of China, International Institute for Translational Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, China.
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A polysaccharide extracted from Astragalus membranaceus residue improves cognitive dysfunction by altering gut microbiota in diabetic mice. Carbohydr Polym 2019; 205:500-512. [DOI: 10.1016/j.carbpol.2018.10.041] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2018] [Revised: 09/26/2018] [Accepted: 10/13/2018] [Indexed: 01/13/2023]
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18
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Hypoglycemic mechanism of a novel proteoglycan, extracted from Ganoderma lucidum , in hepatocytes. Eur J Pharmacol 2018; 820:77-85. [DOI: 10.1016/j.ejphar.2017.12.020] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2017] [Revised: 12/04/2017] [Accepted: 12/08/2017] [Indexed: 01/29/2023]
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19
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Pan Y, Wang C, Chen Z, Li W, Yuan G, Chen H. Physicochemical properties and antidiabetic effects of a polysaccharide from corn silk in high-fat diet and streptozotocin-induced diabetic mice. Carbohydr Polym 2017; 164:370-378. [DOI: 10.1016/j.carbpol.2017.01.092] [Citation(s) in RCA: 88] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Revised: 01/23/2017] [Accepted: 01/25/2017] [Indexed: 11/25/2022]
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Coelho GDP, Martins VS, do Amaral LV, Novaes RD, Sarandy MM, Gonçalves RV. Applicability of Isolates and Fractions of Plant Extracts in Murine Models in Type II Diabetes: A Systematic Review. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2016; 2016:3537163. [PMID: 27843476 PMCID: PMC5098081 DOI: 10.1155/2016/3537163] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Accepted: 05/11/2016] [Indexed: 12/20/2022]
Abstract
Type II diabetes mellitus is one of the most common public health problems worldwide. Its increasing prevalence in several countries and the difficult metabolic control of individuals with the disease justify studying strategies for primary prevention. The population has sought alternative and cheaper ways to treat the disease, including the use of plants considered medicinal by the population. In this study, we carried out a systematic review on the applicability of isolates and fractions of plant extracts in animal models in type II diabetes. A literature search was performed in MEDLINE/PubMed and Scopus databases. Studies using other experimental animals (horses, rabbits, and monkeys) and humans as well as articles in Chinese, German, and Russian were excluded. We assessed the quality of the studies included by using the criteria described in the ARRIVE guidelines. In general, the animals that received fractions or isolates presented reduced blood glucose levels, normalization of body weight and plasma insulin levels, and reduced total triglycerides and cholesterol. In addition, we observed wide variation among the analyzed parameters, which hindered comparison between the studies found. In further studies, standardized reports and experimental design would help to establish comparable study groups and advance the overall knowledge, thus facilitating translatability from animal data to human clinical conditions.
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Affiliation(s)
| | | | | | - Rômulo Dias Novaes
- Institute of Biomedical Science, Department of Structural Biology, Federal University of Alfenas, Alfenas, MG, Brazil
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Protective effects of Astragalus polysaccharides against endothelial dysfunction in hypertrophic rats induced by isoproterenol. Int Immunopharmacol 2016; 38:306-12. [DOI: 10.1016/j.intimp.2016.06.014] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Revised: 05/22/2016] [Accepted: 06/17/2016] [Indexed: 11/21/2022]
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22
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Jiang Y, Qi X, Gao K, Liu W, Li N, Cheng N, Ding G, Huang W, Wang Z, Xiao W. Relationship between molecular weight, monosaccharide composition and immunobiologic activity of Astragalus polysaccharides. Glycoconj J 2016; 33:755-61. [DOI: 10.1007/s10719-016-9669-z] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Revised: 04/19/2016] [Accepted: 04/21/2016] [Indexed: 11/24/2022]
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23
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Lim JD, Yu CY, Kim SH, Chung IM. Structural characterization of an intestinal immune system-modulating arabino-3,6-galactan-like polysaccharide from the above-ground part of Astragalus membranaceus (Bunge). Carbohydr Polym 2016; 136:1265-72. [DOI: 10.1016/j.carbpol.2015.10.029] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Revised: 10/08/2015] [Accepted: 10/11/2015] [Indexed: 12/17/2022]
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24
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Astragulus polysaccharide-loaded fibrous mats promote the restoration of microcirculation in/around skin wounds to accelerate wound healing in a diabetic rat model. Colloids Surf B Biointerfaces 2015; 136:111-8. [PMID: 26370325 DOI: 10.1016/j.colsurfb.2015.09.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Revised: 09/03/2015] [Accepted: 09/03/2015] [Indexed: 10/23/2022]
Abstract
Tissue engineering scaffolds (TES) can carry numerous biomacromolecules and cells, and they have been widely used in diabetic skin wound healing with positive effects. However, the bioactive retention of biomacromolecules and cells during fabrication and storage is still a factor restricting their use. Moreover, impaired blood supply in/around poorly healing diabetic skin wounds has not been considered. In the present study, a bioactive natural substance of Astragalus polysaccharide (APS), which has stable and confirmed effects on endothelial protection, was embedded into fibrous TES by electrospinning. The administration of APS-loaded TES on the skin wound in a diabetic rat model led to a dose-dependent promotion in skin blood flow around wounds and an increase in endoglin expression and microvessel density in regenerated skin tissues. Furthermore, the higher loading of APS in TES led to faster collagen synthesis, appendage and epidermal differentiation, and wound closure. In summary, the combination of APS with TES is a potentially novel therapeutic strategy for diabetic skin wound healing, as it not only mimics the ultrastructure of extracellular matrixes but also restores skin microcirculation.
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Ma JZ, Yang LX, Shen XL, Qin JH, Deng LL, Ahmed S, Xu HX, Xue DY, Ye JX, Xu G. Effects of Traditional Chinese Medicinal Plants on Anti-insulin Resistance Bioactivity of DXMS-Induced Insulin Resistant HepG2 Cells. NATURAL PRODUCTS AND BIOPROSPECTING 2014; 4:197-206. [PMID: 25089237 PMCID: PMC4111871 DOI: 10.1007/s13659-014-0028-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Accepted: 06/16/2014] [Indexed: 06/03/2023]
Abstract
ABSTRACT Medicinal plants have a long history of use in China to treat diabetic symptoms. Ancient Chinese medical manuscripts and ethnobotanical surveys document plant remedies that continue to be actively used in China for the treatment of diabetic symptoms. Based on a systematic ancient Chinese medical manuscripts review in combination with ethnobotanical survey, 16 medicinal plants for the traditional treatment of diabetic symptoms were identified for the evaluation of anti-insulin resistance bioactivity. The biological activity of 16 medicinal plants was tested on dexamethasone (DXMS)-induced insulin resistant HepG2 cells. The result shows that 11 of the 16 medicinal plants enhanced glucose uptake of DXMS-induced insulin resistant HepG2 cells, thereby demonstrating their ability to increase insulin sensitivity, other five medicinal plants including Astragalus membranaceus were found ineffective. The study shows that ancient Chinese medical manuscripts and ethnobotanical surveys on plants for the prevention and treatment of diabetic symptoms provide a promising knowledge base for drug discovery to mitigate the global diabetes epidemic.
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Affiliation(s)
- Jun-Zeng Ma
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201 People’s Republic of China
| | - Li-Xin Yang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201 People’s Republic of China
- College of Life and Environmental Science, Minzu University of China, 27 ZhongGuanCun South Avenue, Beijing, 100086 China
| | - Xiao-Ling Shen
- Laboratory of Chinese Herbal Drug Discovery, Tropical Medicine Institute, Guangzhou University of Chinese Medicine, Guangzhou, 510405 People’s Republic of China
| | - Ji-Huan Qin
- Laboratory of Chinese Herbal Drug Discovery, Tropical Medicine Institute, Guangzhou University of Chinese Medicine, Guangzhou, 510405 People’s Republic of China
| | - Li-Lan Deng
- Southwest Forestry University, Kunming, 650224 People’s Republic of China
| | - Selena Ahmed
- College of Life and Environmental Science, Minzu University of China, 27 ZhongGuanCun South Avenue, Beijing, 100086 China
- Sustainable Food and Bioenergy Systems Program, Department of Health and Human Development, Montana State University, Bozeman, MT 59717 USA
| | - Hong-Xi Xu
- Shanghai University of Traditional Chinese Medicine, Shanghai, 201203 People’s Republic of China
| | - Da-Yuan Xue
- College of Life and Environmental Science, Minzu University of China, 27 ZhongGuanCun South Avenue, Beijing, 100086 China
| | - Jiang-Xia Ye
- Southwest Forestry University, Kunming, 650224 People’s Republic of China
| | - Gang Xu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201 People’s Republic of China
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Polysaccharides from Ferula sinkiangensis and Potent Inhibition of Protein Tyrosine Phosphatase 1B. Chem Nat Compd 2014. [DOI: 10.1007/s10600-014-0999-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Antidiabetic activity of Acacia tortilis (Forsk.) Hayne ssp. raddiana polysaccharide on streptozotocin-nicotinamide induced diabetic rats. BIOMED RESEARCH INTERNATIONAL 2014; 2014:572013. [PMID: 25121104 PMCID: PMC4119902 DOI: 10.1155/2014/572013] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2014] [Revised: 05/06/2014] [Accepted: 06/17/2014] [Indexed: 11/22/2022]
Abstract
The present study was designed to investigate the antidiabetic activity of aqueous extract of Acacia tortilis polysaccharide (AEATP) from gum exudates and its role in comorbidities associated with diabetes in STZ-nicotinamide induced diabetic rats. Male albino Wistar rats were divided into control, diabetic control, glimepiride treated (10 mg/kg), and diabetic rats treated with 250, 500, and 1000 mg/kg dose of AEATP groups and fasting blood glucose, glycated hemoglobin, total cholesterol, triglyceride, LDL, VLDL, HDL, SGOT, and SGPT levels were measured. STZ significantly increased fasting blood glucose level, glycated hemoglobin, total cholesterol, triglyceride, LDL, VLDL, SGOT, and SGPT levels, whereas HDL level was reduced as compared to control group. After 7 days of administration, 500 and 1000 mg/kg dose of AEATP showed significant reduction (P < 0.05) in fasting blood glucose level compared to diabetic control. AEATP has also reduced total cholesterol, triglyceride, LDL, VLDL, SGOT, and SGPT levels and improved HDL level as compared to diabetic control group. Our study is the first to report the normalization of fasting blood glucose level, lipid profile, and liver enzyme in AEATP treated diabetic rats. Thus, it can be concluded that AEATP may have potentials for the treatment of T2DM and its comorbidities.
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A pilot-scale homogenization-assisted negative pressure cavitation extraction of Astragalus polysaccharides. Int J Biol Macromol 2014; 67:189-94. [DOI: 10.1016/j.ijbiomac.2014.03.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2013] [Revised: 03/03/2014] [Accepted: 03/08/2014] [Indexed: 12/17/2022]
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Eddouks M, Bidi A, El Bouhali B, Hajji L, Zeggwagh NA. Antidiabetic plants improving insulin sensitivity. ACTA ACUST UNITED AC 2014; 66:1197-214. [PMID: 24730446 DOI: 10.1111/jphp.12243] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2013] [Accepted: 02/23/2014] [Indexed: 12/19/2022]
Abstract
BACKGROUND Globally, the prevalence of diabetes mellitus is increasing at an alarming rate. This chronic pathology gravely troubled the human health and quality of life. Both insulin deficiency and insulin resistance are involved in the pathophysiology of diabetes mellitus. Moreover, insulin resistance is being diagnosed nowadays in a growing population of diabetic and obese patients, especially in industrialized societies. There are lots of conventional agents available to control and to treat diabetes, but total recovery from this disorder has not been reported up to this date. Plants provided a potential source of hypoglycemic drugs and are widely used in several traditional systems of medicine to prevent diabetes. A few reviews with less attention paid to mechanisms of action have been published on antidiabetic plants. OBJECTIVES The present review focuses on the various plants that have been reported to be effective in improving insulin sensitivity associated with diabetes. KEY FINDINGS In this work, an updated systematic review of the published literature has been conducted to review the antidiabetic plants improving insulin sensitivity and 111 medicinal plants have been reported to have a beneficial effect on insulin sensitivity using several in-vitro and in-vivo animal models of diabetes. CONCLUSION The different metabolic and cellular effects of the antidiabetic plants improving insulin sensitivity are reported indicating the important role of medicinal plants as potential alternative or complementary use in controlling insulin resistance associated with diabetes mellitus.
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Affiliation(s)
- Mohamed Eddouks
- Faculty of Sciences and Techniques Errachidia, Moulay Ismail University, Errachidia, Morocco
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30
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Lian F, Li G, Chen X, Wang X, Piao C, Wang J, Hong Y, Ba Z, Wu S, Zhou X, Lang J, Liu Y, Zhang R, Hao J, Zhu Z, Li H, Fang Liu H, Cao A, Yan Z, An Y, Bai Y, Wang Q, Zhen Z, Yu C, Wang CZ, Yuan CS, Tong X. Chinese herbal medicine Tianqi reduces progression from impaired glucose tolerance to diabetes: a double-blind, randomized, placebo-controlled, multicenter trial. J Clin Endocrinol Metab 2014; 99:648-55. [PMID: 24432995 DOI: 10.1210/jc.2013-3276] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
CONTEXT Living in a prediabetes state significantly increases a patient's risk for both diabetes and cardiovascular disease. Tianqi capsule, containing 10 Chinese herbal medicines, is used in China for the treatment of type 2 diabetes mellitus (T2DM). OBJECTIVE The purpose of this study was to assess whether Tianqi prevented T2DM in subjects with impaired glucose tolerance (IGT) over the course of a 12-month treatment. METHODS Individuals with IGT were randomly allocated in a double-blind manner to receive Tianqi (n = 210) or a placebo (n = 210) for 12 months. Oral glucose tolerance tests were conducted every 3 months to assess the development of diabetes or restoration to normal glucose tolerance. All subjects received the same lifestyle education. The primary endpoint was the conversion of IGT to T2DM. Body weight and body mass index were observed. Adverse effects were monitored. RESULTS Of the 420 enrolled subjects with IGT, 389 completed the trial (198 in the Tianqi group and 191 in the placebo group). At the end of the 12-month trial, 36 subjects in the Tianqi group (18.18%) and 56 in the placebo group (29.32%) had developed diabetes (P = .01). There was a significant difference in the number of subjects who had normal glucose tolerance at the end of the study between the Tianqi and placebo groups (n = 125, 63.13%, and n = 89, 46.60%, respectively; P = .001). Cox's proportional hazards model analysis showed that Tianqi reduced the risk of diabetes by 32.1% compared with the placebo. No severe adverse events occurred in the trial. There were no statistical differences in body weight and body mass index changes between the Tianqi group and the placebo group during the 12-month trial. CONCLUSIONS Treatment with a Tianqi capsule for 12 months significantly decreased the incidence of T2DM in subjects with IGT, and this herbal drug was safe to use.
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Affiliation(s)
- Fengmei Lian
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences (F.L., X.C., Y.B., Z.Zhe., X.T.), and China Academy of Chinese Medical Sciences (Z.Y.), Beijing 100053, China; Fuwai Hospital of Cardiovascular Disease (G.L., Y.A.), Beijing, China; Beijing Pinggu Hospital of Traditional Chinese Medicine (X.W.), Beijing 101200, China; The Affiliated Hospital to Changchun University of Chinese Medicine (C.P.), Changchun 130021, China; Beijing Mentougou Hospital of Traditional Chinese Medicine (J.W.), Beijing 102300, China; Hangzhou Hospital of Traditional Chinese Medicine (Y.H.), Hangzhou 310007, China; Qinghai Hospital of Traditional Chinese Medicine (Z.B.), Qinghai 810000, China; First Teaching Hospital of Tianjin University of Traditional Chinese Medicine (S.W.), Tianjin 300192, China; Guangzhou Tianhe Hospital of Traditional Chinese Medicine (X.Z.), Guangzhou 510275, China; Foshan Hospital of Traditional Chinese Medicine (J.L.), Foshan, 528000 China; Beijing Huimin Hospital (Y.L.), Beijing, China; Yangquan First Municipal People's Hospital (R.Z.), Yangquan 045000, China; Guangzhou Huangpu Hospital of Traditional Chinese Medicine (J.H., Q.W.), Guangzhou 510700, China; First Affiliated Hospital of Guangzhou University of Chinese Medicine (Z.Zhu.), Guangzhou 510405, China; Shenzhen Hospital of Traditional Chinese Medicine (H.L.), Shenzhen 518033, China; Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine (H.F.L.), Beijing 100700, China; Beijing Changping Hospital of Traditional Chinese Medicine (A.C.), Beijing 100200, China; and Tang Center for Herbal Medicine Research (C.Y., C.-Z.W., C.-S.Y.), University of Chicago, Chicago, Illinois 60637
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Astragalus polysaccharide suppresses skeletal muscle myostatin expression in diabetes: involvement of ROS-ERK and NF-κB pathways. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2013; 2013:782497. [PMID: 24454989 PMCID: PMC3880770 DOI: 10.1155/2013/782497] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Revised: 10/24/2013] [Accepted: 10/27/2013] [Indexed: 12/21/2022]
Abstract
Objective. The antidiabetes drug astragalus polysaccharide (APS) is capable of increasing insulin sensitivity in skeletal muscle and improving whole-body glucose homeostasis. Recent studies suggest that skeletal muscle secreted growth factor myostatin plays an important role in regulating insulin signaling and insulin resistance. We hypothesized that regulation of skeletal muscle myostatin expression may be involved in the improvement of insulin sensitivity by APS. Methods. APS was administered to 13-week-old diabetic KKAy and nondiabetic C57BL/6J mice for 8 weeks. Complementary studies examined APS effects on the saturated acid palmitate-induced insulin resistance and myostatin expression in C2C12 cells. Results. APS treatment ameliorated hyperglycemia, hyperlipidemia, and insulin resistance and decreased the elevation of myostatin expression and malondialdehyde production in skeletal muscle of noninsulin-dependent diabetic KKAy mice. In C2C12 cells in vitro, saturated acid palmitate-induced impaired glucose uptake, overproduction of ROS, activation of extracellular regulated protein kinases (ERK), and NF-κB were partially restored by APS treatment. The protective effects of APS were mimicked by ERK and NF-κB inhibitors, respectively. Conclusion. Our study demonstrates elevated myostatin expression in skeletal muscle of type 2 diabetic KKAy mice and in cultured C2C12 cells exposed to palmitate. APS is capable of improving insulin sensitivity and decreasing myostatin expression in skeletal muscle through downregulating ROS-ERK-NF-κB pathway.
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YE YAN, DENG TAO, WAN XINYUE, OUYANG JINGPING, LIU MIN, MAO XIANQING. The role of quantitative changes in the epxression of insulin receptor substrate-1 and nuclear ubiquitin in abnormal glycometabolism in the livers of KKay mice and the relative therapeutic mechanisms of Astragalus polysaccharide. Int J Mol Med 2013; 33:341-50. [DOI: 10.3892/ijmm.2013.1580] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2013] [Accepted: 11/26/2013] [Indexed: 11/06/2022] Open
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Structural features and biological activities of the polysaccharides from Astragalus membranaceus. Int J Biol Macromol 2013; 64:257-66. [PMID: 24325861 DOI: 10.1016/j.ijbiomac.2013.12.002] [Citation(s) in RCA: 196] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2013] [Revised: 11/06/2013] [Accepted: 12/02/2013] [Indexed: 12/14/2022]
Abstract
Recently, a great deal of interest has been developed to isolate and investigate novel bioactive components with health benefit effects from natural resources. The dried root of Astragalus membranaceus, one of the most popular health-promoting herbal medicines, has been used historically as an immunomodulating agent for the treatment of common cold, diarrhea, fatigue and anorexia for more than 2000 years. Modern phytochemistry and pharmacological experiments have proved that polysaccharide is one of the major active ingredients in the root of A. membranaceus with various important bioactivities, such as immunomodulation, antioxidant, antitumor, anti-diabetes, antiviral, hepatoprotection, anti-inflammation, anti-atherosclerosis, hematopoiesis and neuroprotection. The aim of the present review is to summarize previous and current references and give a comprehensive summary regarding the structural features and biological activities of A. membranaceus polysaccharides in order to provide new insight for further development of these macromolecules.
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Agyemang K, Han L, Liu E, Zhang Y, Wang T, Gao X. Recent Advances in Astragalus membranaceus Anti-Diabetic Research: Pharmacological Effects of Its Phytochemical Constituents. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2013; 2013:654643. [PMID: 24348714 PMCID: PMC3855992 DOI: 10.1155/2013/654643] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/29/2013] [Revised: 11/04/2013] [Accepted: 11/05/2013] [Indexed: 12/17/2022]
Abstract
The disease burden of diabetes mellitus is increasing throughout the world. The need for more potent drugs to complement the present anti-diabetic drugs has become an imperative. Astragalus membranaceus, a key component of most Chinese herbal anti-diabetic formulas, has been an important prospect for lead anti-diabetic compounds. It has been progressively studied for its anti-diabetic properties. Ethnopharmacological studies have established its potential to alleviate diabetes mellitus. Recent studies have sought to relate its chemical constituents to types 1 and 2 diabetes mellitus. Its total polysaccharides, saponins, and flavonoids fractions and several isolated compounds have been the most studied. The total polysaccharides fraction demonstrated activity to both types 1 and 2 diabetes mellitus. This paper discusses the anti-diabetic effects and pharmacological action of the chemical constituents in relation to types 1 and 2 diabetes mellitus.
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Affiliation(s)
- Kojo Agyemang
- Tianjin State Key Laboratory of Modern Chinese Medicine, 312 Anshanxi Road, Nankai District, Tianjin 300193, China
- Noguchi Memorial Institute for Medical Research, P.O. Box LG 581, Legon, Accra, Ghana
| | - Lifeng Han
- Tianjin State Key Laboratory of Modern Chinese Medicine, 312 Anshanxi Road, Nankai District, Tianjin 300193, China
| | - Erwei Liu
- Tianjin State Key Laboratory of Modern Chinese Medicine, 312 Anshanxi Road, Nankai District, Tianjin 300193, China
| | - Yi Zhang
- Tianjin State Key Laboratory of Modern Chinese Medicine, 312 Anshanxi Road, Nankai District, Tianjin 300193, China
| | - Tao Wang
- Tianjin State Key Laboratory of Modern Chinese Medicine, 312 Anshanxi Road, Nankai District, Tianjin 300193, China
| | - Xiumei Gao
- Tianjin State Key Laboratory of Modern Chinese Medicine, 312 Anshanxi Road, Nankai District, Tianjin 300193, China
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Bisht S, Kant R, Kumar V. α-d-Glucosidase inhibitory activity of polysaccharide isolated from Acacia tortilis gum exudate. Int J Biol Macromol 2013; 59:214-20. [DOI: 10.1016/j.ijbiomac.2013.04.057] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2013] [Revised: 04/16/2013] [Accepted: 04/17/2013] [Indexed: 01/17/2023]
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Lu L, Wang DT, Shi Y, Yin Y, Wei LB, Zou YC, Huang B, Zhao Y, Wang M, Wan H, Li CJ, Diao JX. Astragalus polysaccharide improves muscle atrophy from dexamethasone- and peroxide-induced injury in vitro. Int J Biol Macromol 2013; 61:7-16. [PMID: 23817095 DOI: 10.1016/j.ijbiomac.2013.06.027] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2013] [Revised: 06/11/2013] [Accepted: 06/22/2013] [Indexed: 01/28/2023]
Abstract
Astragalus polysaccharide (APS) is an important bioactive component of Astragalus membranaceus Bunge (Leguminosae) that has been used in traditional Chinese medicine for treating muscle wasting, a serious complication with complex mechanism manifested as myofibers atrophy and satellite cells apoptosis. In this study, the anti-atrophy and anti-apoptotic activity of Astragalus polysaccharide (APS) was characterized in C2C12 skeletal muscle myotubes and myoblasts. APS inhibited dexamethasone-induced atrophy by restoring phosphorylation of Akt, m-TOR, P70s6k, rpS6 and FoxO3A/FoxO1. The targets that protected C2C12 myoblasts from damage by H2O2 were promoting cells proliferation and inhibiting cells apoptosis. The protective mechanisms involved mitochondrial pathway and death receptor pathway. Moreover, Antioxidant effect of APS was also detected in this work. Our findings suggested that APS could be explored as a protective and perhaps as a therapeutic agent in the management of muscle wasting.
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Affiliation(s)
- Lu Lu
- Department of Traditional Chinese Medicine, ZhuJiang Hospital, Southern Medical University, Guangzhou 510280, China; School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
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Yang LP, Shen JG, Xu WC, Li J, Jiang JQ. Secondary Metabolites of the GenusAstragalus:Structure and Biological-Activity Update. Chem Biodivers 2013; 10:1004-54. [DOI: 10.1002/cbdv.201100444] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2011] [Indexed: 01/22/2023]
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Li X, Lian FM, Guo D, Fan L, Tang J, Peng JB, Deng HW, Liu ZQ, Xiao XH, Wang YR, Qu KY, Deng S, Zhong Q, Sha YL, Zhu Y, Bai YJ, Chen XY, Zhou Q, Zhou HH, Tong XL, Zhang W. The rs1142345 in TPMT Affects the Therapeutic Effect of Traditional Hypoglycemic Herbs in Prediabetes. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2013; 2013:327629. [PMID: 23737827 PMCID: PMC3657408 DOI: 10.1155/2013/327629] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/06/2013] [Revised: 03/25/2013] [Accepted: 03/25/2013] [Indexed: 01/26/2023]
Abstract
Therapeutic interventions in prediabetes are important in the primary prevention of type 2 diabetes (T2D) and its chronic complications. However, little is known about the pharmacogenetic effect of traditional herbs on prediabetes treatment. A total of 194 impaired glucose tolerance (IGT) subjects were treated with traditional hypoglycemic herbs (Tianqi Jiangtang) for 12 months in this study. DNA samples were genotyped for 184 mutations in 34 genes involved in drug metabolism or transportation. Multinomial logistic regression analysis indicated that rs1142345 (A > G) in the thiopurine S-methyltransferase (TPMT) gene was significantly associated with the hypoglycemic effect of the drug (P = 0.001, FDR P = 0.043). The "G" allele frequencies of rs1142345 in the healthy (subjects reverted from IGT to normal glucose tolerance), maintenance (subjects still had IGT), and deterioration (subjects progressed from IGT to T2D) groups were 0.094, 0.214, and 0.542, respectively. Binary logistic regression analysis indicated that rs1142345 was also significantly associated with the hypoglycemic effect of the drug between the healthy and maintenance groups (P = 0.027, OR = 4.828) and between the healthy and deterioration groups (P = 0.001, OR = 7.811). Therefore, rs1142345 was associated with the clinical effect of traditional hypoglycemic herbs. Results also suggested that TPMT was probably involved in the pharmacological mechanisms of T2D.
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Affiliation(s)
- Xi Li
- Pharmacogenetics Research Institute, Institute of Clinical Pharmacology, Central South University, Changsha, Hunan 410078, China
| | - Feng-Mei Lian
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China
| | - Dong Guo
- Pharmacogenetics Research Institute, Institute of Clinical Pharmacology, Central South University, Changsha, Hunan 410078, China
| | - Lan Fan
- Pharmacogenetics Research Institute, Institute of Clinical Pharmacology, Central South University, Changsha, Hunan 410078, China
| | - Jie Tang
- Pharmacogenetics Research Institute, Institute of Clinical Pharmacology, Central South University, Changsha, Hunan 410078, China
| | - Jing-Bo Peng
- Pharmacogenetics Research Institute, Institute of Clinical Pharmacology, Central South University, Changsha, Hunan 410078, China
| | - Hong-Wen Deng
- Pharmacogenetics Research Institute, Institute of Clinical Pharmacology, Central South University, Changsha, Hunan 410078, China
| | - Zhao-Qian Liu
- Pharmacogenetics Research Institute, Institute of Clinical Pharmacology, Central South University, Changsha, Hunan 410078, China
| | - Xin-Hua Xiao
- Department of Endocrinology, Peking Union Medical College Hospital, China Academy of Medical Sciences, Beijing 100730, China
| | - Yan-Rong Wang
- Department of Endocrinology, Peking University Third Hospital, Peking University, Beijing 100083, China
| | - Ke-Yi Qu
- Department of Endocrinology, Yiling Hospital, Yichang, Hubei 443100, China
| | - Sheng Deng
- Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, Hunan 410078, China
| | - Qi Zhong
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan 410078, China
| | - Yi-Ling Sha
- Department of Endocrinology, First People's Hospital of Hegang, Hegang, Heilongjiang 154100, China
| | - Yan Zhu
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China
| | - Yu-Jing Bai
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China
| | - Xin-Yan Chen
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China
| | - Qiang Zhou
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China
| | - Hong-Hao Zhou
- Pharmacogenetics Research Institute, Institute of Clinical Pharmacology, Central South University, Changsha, Hunan 410078, China
| | - Xiao-Lin Tong
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China
| | - Wei Zhang
- Pharmacogenetics Research Institute, Institute of Clinical Pharmacology, Central South University, Changsha, Hunan 410078, China
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Chang CLT, Lin Y, Bartolome AP, Chen YC, Chiu SC, Yang WC. Herbal therapies for type 2 diabetes mellitus: chemistry, biology, and potential application of selected plants and compounds. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2013; 2013:378657. [PMID: 23662132 PMCID: PMC3638592 DOI: 10.1155/2013/378657] [Citation(s) in RCA: 103] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/06/2013] [Accepted: 03/11/2013] [Indexed: 01/07/2023]
Abstract
Diabetes mellitus has been recognized since antiquity. It currently affects as many as 285 million people worldwide and results in heavy personal and national economic burdens. Considerable progress has been made in orthodox antidiabetic drugs. However, new remedies are still in great demand because of the limited efficacy and undesirable side effects of current orthodox drugs. Nature is an extraordinary source of antidiabetic medicines. To date, more than 1200 flowering plants have been claimed to have antidiabetic properties. Among them, one-third have been scientifically studied and documented in around 460 publications. In this review, we select and discuss blood glucose-lowering medicinal herbs that have the ability to modulate one or more of the pathways that regulate insulin resistance, β-cell function, GLP-1 homeostasis, and glucose (re)absorption. Emphasis is placed on phytochemistry, anti-diabetic bioactivities, and likely mechanism(s). Recent progress in the understanding of the biological actions, mechanisms, and therapeutic potential of compounds and extracts of plant origin in type 2 diabetes is summarized. This review provides a source of up-to-date information for further basic and clinical research into herbal therapy for type 2 diabetes. Emerging views on therapeutic strategies for type 2 diabetes are also discussed.
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Affiliation(s)
- Cicero L. T. Chang
- Department of Veterinary Medicine, National Chung Hsing University, Taichung 402, Taiwan
| | - Yenshou Lin
- Department of Life Science, National Taiwan Normal University, Taipei 116, Taiwan
| | - Arlene P. Bartolome
- Institute of Chemistry, University of the Philippines, Diliman, Quezon City 1100, Philippines
- Agricultural Biotechnology Research Center, Academia Sinica, No. 128, Academia Sinica Road, Section 2, Nankang, Taipei 115, Taiwan
| | - Yi-Ching Chen
- Agricultural Biotechnology Research Center, Academia Sinica, No. 128, Academia Sinica Road, Section 2, Nankang, Taipei 115, Taiwan
| | - Shao-Chih Chiu
- Graduate Institute of Immunology, China Medical University, Taichung 404, Taiwan
- Center for Neuropsychiatry, China Medical University Hospital, Taichung 404, Taiwan
| | - Wen-Chin Yang
- Agricultural Biotechnology Research Center, Academia Sinica, No. 128, Academia Sinica Road, Section 2, Nankang, Taipei 115, Taiwan
- Institute of Pharmacology, Yang-Ming University, Taipei 112, Taiwan
- Institute of Zoology, National Taiwan University, Taipei 106, Taiwan
- Department of Life Sciences, National Chung Hsing University, Taichung 402, Taiwan
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Chang CLT, Lin Y, Bartolome AP, Chen YC, Chiu SC, Yang WC. Herbal therapies for type 2 diabetes mellitus: chemistry, biology, and potential application of selected plants and compounds. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2013; 5:22-9. [PMID: 23598921 PMCID: PMC3579016 DOI: 10.4103/0974-8490.105644] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/02/2012] [Revised: 05/02/2012] [Accepted: 01/08/2013] [Indexed: 01/11/2023]
Abstract
Background: Diabetes mellitus, becoming the third killer of mankind after cancer and cardiovascular diseases, is one of the most challenging diseases facing health care professionals today. That is why; there has been a growing interest in the therapeutic use of natural products for diabetes, especially those derived from plants. Aim: To evaluate the anti-diabetic activity together with the accompanying biological effects of the fractions and the new natural compounds of Hyphaene thebaica (HT) epicarp. Materials and Methods: 500 g of coarsely powdered of (HT) fruits epicarp were extracted by acetone. The acetone crude extract was fractionated with methanol and ethyl acetate leaving a residual water-soluble fraction WF. The anti-diabetic effects of the WF and one of its compounds of the acetone extract of the (HT) epicarp were investigated in this study using 40 adult male rats. Results: Phytochemical investigation of active WF revealed the presence of ten different flavonoids, among which two new natural compounds luteolin 7-O-[6”-O-α-Lrhamnopyranosyl]-β-D-galactopyranoside 3 and chrysoeriol 7-O-β-D-galactopyranosyl(1→2)-α-L-arabinofuranoside 5 were isolated. Supplementation of the WF improved glucose and insulin tolerance and significantly lowered blood glycosylated hemoglobin levels. On the other hand, compound 5 significantly reduced AST and ALT levels of liver, respectively. Likewise, the kidney functions were improved for both WF and compound 5, whereby both urea and creatinine levels in serum were highly significant Conclusion: The results justify the use of WF and compound 5 of the (HT) epicarp as anti-diabetic agent, taking into consideration that the contents of WF were mainly flavonoids
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Affiliation(s)
- Cicero L T Chang
- Department of Veterinary Medicine, National Chung Hsing University, Taichung 402, Taiwan
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Liu J, Zhang JF, Lu JZ, Zhang DL, Li K, Su K, Wang J, Zhang YM, Wang N, Yang ST, Bu L, Ou-yang JP. Astragalus polysaccharide stimulates glucose uptake in L6 myotubes through AMPK activation and AS160/TBC1D4 phosphorylation. Acta Pharmacol Sin 2013; 34:137-45. [PMID: 23103623 DOI: 10.1038/aps.2012.133] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
AIM To establish the mechanism responsible for the stimulation of glucose uptake by Astragalus polysaccharide (APS), extracted from Astragalus membranaceus Bunge, in L6 myotubes in vitro. METHODS APS-stimulated glucose uptake in L6 myotubes was measured using the 2-deoxy-[(3)H]-D-glucose method. The adenine nucleotide contents in the cells were measured by HPLC. The phosphorylation of AMP-activated protein kinase (AMPK) and Akt substrate of 160 kDa (AS160) was examined using Western blot analysis. The cells transfected with 4P mutant AS160 (AS160-4P) were constructed using gene transfer approach. RESULTS Treatment of L6 myotubes with APS (100-1600 μg/mL) significantly increased glucose uptake in time- and concentration-dependent manners. The maximal glucose uptake was reached in the cells treated with APS (400 μg/mL) for 36 h. The APS-stimulated glucose uptake was significantly attenuated by pretreatment with Compound C, a selective AMPK inhibitor or in the cells overexpressing AS160-4P. Treatment of L6 myotubes with APS strongly promoted the activation of AMPK. We further demonstrated that either Ca(2+)/calmodulin-dependent protein kinase kinase β (CaMKKβ) or liver kinase B1 (LKB1) mediated APS-induced activation of AMPK in L6 myotubes, and the increased cellular AMP: ATP ratio was also involved. Treatment of L6 myotubes with APS robustly enhanced the phosphorylation of AS160, which was significantly attenuated by pretreatment with Compound C. CONCLUSION Our results demonstrate that APS stimulates glucose uptake in L6 myotubes through the AMP-AMPK-AS160 pathway, which may contribute to its hypoglycemic effect.
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Zhao M, Zhang ZF, Ding Y, Wang JB, Li Y. Astragalus polysaccharide improves palmitate-induced insulin resistance by inhibiting PTP1B and NF-κB in C2C12 myotubes. Molecules 2012; 17:7083-92. [PMID: 22728372 PMCID: PMC6268810 DOI: 10.3390/molecules17067083] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2012] [Revised: 05/30/2012] [Accepted: 06/06/2012] [Indexed: 02/04/2023] Open
Abstract
We investigated the effects of Astragalus polysaccharide (APS) on palmitate-induced insulin resistance in C2C12 skeletal muscle myotubes. Palmitate-reduced glucose uptake was restored by APS. APS prevented palmitate-induced C2C12 myotubes from impaired insulin signaling by inhibiting Ser307 phosphorylation of insulin receptor substrate-1 (IRS-1) and increasing Ser473 phosphorylation of Akt. Moreover, the increases in protein-tyrosine phosphatase-1B (PTP1B) protein level and NF-κB activation associated with palmitate treatment were also prevented by APS. However the treatment with APS didn’t change AMP-activated protein kinase (AMPK) activation in palmitate-induced myotubes. The results of the present study suggest that Astragalus polysaccharide inhibits palmitate-induced insulin resistance in C2C12 myotubes by inhibiting expression of PTP1B and regulating NF-κB but not AMPK pathway.
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Affiliation(s)
| | | | | | | | - Yong Li
- Author to whom correspondence should be addressed; ; Tel./Fax:+86-10-8280-1177
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Effect of a novel proteoglycan PTP1B inhibitor from Ganoderma lucidum on the amelioration of hyperglycaemia and dyslipidaemia in db/db mice. Br J Nutr 2012; 108:2014-25. [PMID: 22453054 DOI: 10.1017/s0007114512000153] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Protein tyrosine phosphatase 1B (PTP1B) is implicated in the negative regulation of the insulin signalling pathway by dephosphorylating the insulin receptor (IR) and IR substrates. Ganoderma lucidum has traditionally been used for the treatment of diabetes in Chinese medicine; however, its anti-diabetic potency and mechanism in vivo is still unclear. Our previously published study reported a novel proteoglycan PTP1B inhibitor, named Fudan-Yueyang-Ganoderma lucidum (FYGL) from G. lucidum, with a half-maximal inhibitory concentration (IC₅₀) value of 5·12 (sem 0·05) μg/ml, a protein:polyglycan ratio of 17:77 and 78 % glucose in polysaccharide, and dominant amino acid residues of aspartic acid, glycine, glutamic acid, alanine, serine and threonine in protein. FYGL is capable of decreasing plasma glucose in streptozotocin-induced diabetic mice with a high safety of median lethal dose (LD₅₀) of 6 g/kg. In the present study, C57BL/6 db/db diabetic mice were trialed further using FYGL as well as metformin for comparison. Oral treatment with FYGL in db/db diabetic mice for 4 weeks significantly (P < 0·01 or 0·05) decreased the fasting plasma glucose level, serum insulin concentration and the homeostasis model assessment of insulin resistance. FYGL also controlled the biochemistry indices relative to type 2 diabetes-accompanied lipidaemic disorders. Pharmacology research suggests that FYGL decreases the plasma glucose level by the mechanism of inhibiting PTP1B expression and activity, consequently, regulating the tyrosine phosphorylation level of the IR β-subunit and the level of hepatic glycogen, thus resulting in the improvement of insulin sensitivity. Therefore, FYGL is promising as an insulin sensitiser for the therapy of type 2 diabetes and accompanied dyslipidaemia.
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Ito Y, Banno R, Hagimoto S, Ozawa Y, Arima H, Oiso Y. TNFα increases hypothalamic PTP1B activity via the NFκB pathway in rat hypothalamic organotypic cultures. ACTA ACUST UNITED AC 2012; 174:58-64. [DOI: 10.1016/j.regpep.2011.11.010] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2011] [Revised: 11/03/2011] [Accepted: 11/29/2011] [Indexed: 01/03/2023]
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Khan V, Najmi AK, Akhtar M, Aqil M, Mujeeb M, Pillai KK. A pharmacological appraisal of medicinal plants with antidiabetic potential. JOURNAL OF PHARMACY AND BIOALLIED SCIENCES 2012; 4:27-42. [PMID: 22368396 PMCID: PMC3283954 DOI: 10.4103/0975-7406.92727] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2011] [Revised: 07/29/2011] [Accepted: 08/07/2011] [Indexed: 12/21/2022] Open
Abstract
Diabetes mellitus is a complicated metabolic disorder that has gravely troubled the human health and quality of life. Conventional agents are being used to control diabetes along with lifestyle management. However, they are not entirely effective and no one has ever been reported to have fully recovered from diabetes. Numerous medicinal plants have been used for the management of diabetes mellitus in various traditional systems of medicine worldwide as they are a great source of biological constituents and many of them are known to be effective against diabetes. Medicinal plants with antihyperglycemic activities are being more desired, owing to lesser side-effects and low cost. This review focuses on the various plants that have been reported to be effective in diabetes. A record of various medicinal plants with their established antidiabetic and other health benefits has been reported. These include Allium sativa, Eugenia jambolana, Panax ginseng, Gymnema sylvestre, Momrodica charantia, Ocimum sanctum, Phyllanthus amarus, Pterocarpus marsupium, Trigonella foenum graecum and Tinospora cordifolia. All of them have shown a certain degree of antidiabetic activity by different mechanisms of action.
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Affiliation(s)
- Vasim Khan
- Department of Pharmacology, Jamia Hamdard, New Delhi, India
| | | | - Mohd. Akhtar
- Department of Pharmacology, Jamia Hamdard, New Delhi, India
| | - Mohd. Aqil
- Department of Pharmaceutics, Jamia Hamdard, New Delhi, India
| | - Mohd. Mujeeb
- Department of Pharmacognosy and Phytochemistry, Jamia Hamdard, New Delhi, India
| | - K. K. Pillai
- Department of Pharmacology, Jamia Hamdard, New Delhi, India
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Liu DS, Gao W, Lin WW, Hao YY, Zhong LH, Li W, Inoguchi T, Takayanagi R. Effects of the Chinese Yi-Qi-Bu-Shen Recipe extract on brainstem auditory evoked potential in rats with diabetes. JOURNAL OF ETHNOPHARMACOLOGY 2011; 137:414-420. [PMID: 21669272 DOI: 10.1016/j.jep.2011.05.033] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2011] [Revised: 05/29/2011] [Accepted: 05/30/2011] [Indexed: 05/30/2023]
Abstract
This study was designed to investigate the effects of the Chinese Yi-Qi-Bu-Shen Recipe (YB) on brain stem auditory evoked potential (BAEP) in diabetic rats and on the protection of the diabetic rat brain's functional lesion. Thirty-three male rats were randomly divided into three groups: the normal control group (NC), the diabetic group (DM), and the diabetic rats treated with YB group (DM+YB). Blood glucose and body weight were measured every three weeks. After six weeks, the serum insulin, blood biochemical indices, superoxide dismutase, malondialdehyde, monoamine neurotransmitters, and BAEP were measured. Compared with the NC group, the waves III, V PLs, and the I-III, I-V IPLs of BAEP in the DM group were significantly delayed (all P<0.05). However, YB-treated diabetic rats maintained a normal brainstem function over the experimental period. Compared with the NC group, the waves I, III, V PL, and waves I-III, III-V and I-V IPLs of BAEP in the DM+YB group were very close (all P>0.05). On the other hand, compared with the DM group, the III, V PLs and the I-III, I-V IPLs of BAEP in the DM+YB group were significantly improved. It was discovered that the central conduction time of rats with diabetes had a close correlation with serum insulin, blood glucose, malondialdehyde, and insulin resistance index. Our results suggest that YB extract has a beneficial effect in preserving the brain's electrophysiological function in diabetic rats, likely through its antihyperglycemic activity, ability to reduce insulin resistance, and antioxidant activity.
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Affiliation(s)
- De-Shan Liu
- Department of Traditional Chinese Medicine, Qilu Hospital of Shandong University, Jinan 250012, Shandong, China.
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Teng BS, Wang CD, Yang HJ, Wu JS, Zhang D, Zheng M, Fan ZH, Pan D, Zhou P. A protein tyrosine phosphatase 1B activity inhibitor from the fruiting bodies of Ganoderma lucidum (Fr.) Karst and its hypoglycemic potency on streptozotocin-induced type 2 diabetic mice. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2011; 59:6492-500. [PMID: 21585203 DOI: 10.1021/jf200527y] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Inhibition of protein tyrosine phosphatase 1B (PTP1B) activity has been considered to be a promising therapy approach to treat type 2 diabetes. In this work, a novel PTP1B activity inhibitor, named FYGL (Fudan-Yueyang-G. lucidum), was screened from the fruiting bodies of Ganoderma lucidum and showed an efficient PTP1B inhibitory potency with IC₅₀ = 5.12 ± 0.05 μg/mL. FYGL is a water-soluble macromolecular proteoglycan with a protein to polysaccharide ratio of 17:77 and a viscosity-average molecular weight (M(η)) of 2.6 × 10⁵. The type 2 diabetic mice treated orally by FYGL showed an obvious decrease in plasma glucose level compared with the diabetic controls without drug treatment, comparable with that of diabetic mice treated with metformin, a clinical drug. The toxicity of FYGL is very low. The results indicate that FYGL may serve as a drug candidate or a health-care food for diabetic therapy or protection.
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Affiliation(s)
- Bao-Song Teng
- Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200433, People's Republic of China
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Polysaccharide fromGynura divaricatamodulates the activities of intestinal disaccharidases in streptozotocin-induced diabetic rats. Br J Nutr 2011; 106:1323-9. [DOI: 10.1017/s0007114511001693] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
During diabetes, structural and functional changes in the alimentary tract are known to take place resulting in an increased absorption of intestinal glucose and alterations in the activities of brush-border disaccharidases. To elucidate the effect of administrating polysaccharide fromGynura divaricata(PGD) on disaccharidase activities, the specific activities of intestinal disaccharidases, namely sucrase, maltase and lactase, were measured in streptozotocin-induced diabetic rats. Normal control and diabetic rats were treated by oral administration with PGD. Specific activities of intestinal disaccharidases were increased significantly during diabetes, and amelioration of the activities of sucrase and maltase during diabetes was clearly visible by the treatment with PGD. However, the increased activity of lactase during diabetes mellitus was remarkably alleviated by the administration of PGD only in the duodenum. Meanwhile, oral sucrose tolerance tests demonstrated that PGD alleviated the hyperglycaemia during diabetes mellitus, resulting from the amelioration in the activities of intestinal disaccharidases. The present investigation suggests that PGD exerted an anti-diabetic effect partly via inhibiting the increased intestinal disaccharidase activities of diabetic rats. This beneficial influence of administration of PGD on intestinal disaccharidases clearly indicates their helpful role in the management of diabetes.
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Wu CH, Lin HT, Wu GJ, Wang SH, Tsai GJ. Effects of cultural medium and conditions on the proliferation and hypoglycemic activity of Saccharomyces pastorianus no. 54. J Biosci Bioeng 2011; 112:159-65. [PMID: 21601518 DOI: 10.1016/j.jbiosc.2011.04.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2010] [Revised: 04/03/2011] [Accepted: 04/28/2011] [Indexed: 10/18/2022]
Abstract
A yeast strain of Saccharomyces pastorianus no. 54 with hypoglycemic activity was isolated from soils of a winery. The aims of this study were first to investigate the effects of the cultivation conditions on proliferation and hypoglycemic activity of this yeast using the assay model of the differentiated 3T3-L1 adipocytes, and then, to confirm in vivo the hypoglycemic activity of cultured yeast by oral administration in streptozotocin (STZ)-induced diabetic mice. Among 7 diluted fruit juice samples the diluted strawberry juice (1.74 g/L reducing sugar content) was chosen as the basal medium. After investigation of the effects of addition of various substances, including 1% of 5 different sugars and glycerol, 0.1% of 6 nitrogen-containing substances, and 1 ppm of 7 growth factors, the diluted strawberry juice added with 1% glucose, 0.1% yeast extract and 1 ppm aspartic acid was optimized at 20 °C with initial pH value of 6.0 for cultivating S. pastorianus no. 54 in flask. The scale-up system of a 5-L fermentor was further established by using the same medium with initial pH 6.0 and being incubated at 20 °C with an aeration rate of 1.2 vvm for 96 h. The hypoglycemic activity of yeast cells cultivated in fermentor was 3.11 times of that in flask. Oral administration of the cultured yeast at a dosage of 130 mg/kg body weight/day for 6 days could significantly reduce the plasma glucose content in STZ-induced diabetic mice and keep their body weights in the normal range.
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Affiliation(s)
- Chien-Hui Wu
- Department of Food Science, National Taiwan Ocean University, No. 2, Pei-Ning Road, Keelung 202, Taiwan, ROC
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Increased galectin-1 expression in muscle of Astragalus polysaccharide-treated Type 1 diabetic mice. J Nat Med 2011; 65:500-7. [DOI: 10.1007/s11418-011-0527-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2010] [Accepted: 03/01/2011] [Indexed: 10/18/2022]
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