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Cui Y, Zhou Q, Jin M, Jiang S, Shang P, Dong X, Li L. Research progress on pharmacological effects and bioavailability of berberine. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2024:10.1007/s00210-024-03199-0. [PMID: 38888754 DOI: 10.1007/s00210-024-03199-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Accepted: 05/29/2024] [Indexed: 06/20/2024]
Abstract
Berberine (BBR), a benzylisoquinoline alkaloid obtained from natural medicines such as coptidis rhizoma, has a wide range of pharmacological activities such as protecting the nervous system, protecting the cardiovascular system, anti-inflammatory, antidiabetic, antihyperlipidemic, antitumor, antibacterial, and antidiarrheal. However, factors such as poor solubility, low permeability, P-glycoprotein (P-gp) efflux, and hepatic-intestinal metabolism result in BBR having a low bioavailability (< 1%), which restricts its application in clinical settings. Therefore, improving its bioavailability is a prerequisite for its clinical applications. This review summarizes the various pharmacological effects of BBR and analyzes the main reasons for its poor bioavailability. It introduces methods to improve the bioavailability of BBR through the use of absorption enhancers and P-gp inhibitors, structural modification of BBR, and preparation of BBR salts and cocrystals as well as the development of new formulations and focuses on the bioavailability study of the new formulations of BBR. The research of BBR was also prospected in order to provide reference for the further research of BBR.
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Affiliation(s)
- Yulong Cui
- Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Quanying Zhou
- Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Min Jin
- Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Siqi Jiang
- Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Peizhao Shang
- Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Xiaofan Dong
- Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Lingjun Li
- Shandong University of Traditional Chinese Medicine, Jinan, China.
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Araj-Khodaei M, Ayati MH, Azizi Zeinalhajlou A, Novinbahador T, Yousefi M, Shiri M, Mahmoodpoor A, Shamekh A, Namazi N, Sanaie S. Berberine-induced glucagon-like peptide-1 and its mechanism for controlling type 2 diabetes mellitus: a comprehensive pathway review. Arch Physiol Biochem 2023:1-8. [PMID: 37921026 DOI: 10.1080/13813455.2023.2258559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Accepted: 09/05/2023] [Indexed: 11/04/2023]
Abstract
Introduction: A growing number of studies have thus far showed the association between type 2 diabetes mellitus (DM) and the intestinal microbiome homoeostasis. As reported, the gut microflora can be significantly different in patients with type 2 DM (T2DM) compared to those in healthy individuals.Methods: The authors collected the relevant articles published until 2022 and these are carefully selected from three scientific databases based on keywords.Discussion: This review highlights research on the anti-diabetic properties of berberine (BBR)-induced glucagon-like peptide-1 (GLP-1), as a glucose-lowering factor and a balance regulator in the microbial flora of the intestines, which plays an important role in adjusting the signalling pathways affecting insulin secretion.Results: Considering the anti-diabetic characteristics of the BBR-induced GLP-1, BBR makes a promising complementary treatment for reducing the clinical symptoms of DM by reducing the hyperglycaemia. Berberin might be a safe and effective drug for T2DM with little or no adverse effects.HighlightsBerberine induces GLP-1 insulin secretion by PLC2 pathway in the intestinalBerberine-induced GLP-1 decreases mitochondrial stress and relocates cytochrome c out of the mitochondria.Berberine induces GLP-1 secretion in the intestine by altering the bacterial profile, thus could possibly lighten diabetes symptomsBerberine-induced SCFA production, SCFA causes GLP-1 secretion from the intestinal L-Cell.Preventing mitochondrial damage, reducing adipose tissue fat, and reducing oxidative stress are thus among the results of BBR-induced GLP-1.The lower costs of BBR, and its limited side effects and higher availability, make it a promising supplementary medicine for DM.
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Affiliation(s)
| | - Mohammad Hossein Ayati
- Department of Traditional Medicine, School of Persian Medicine, Tehran University of Medical Sciences, Tehran, Iran
- Research Center for Integrative Medicine in Aging, Aging Research Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Akbar Azizi Zeinalhajlou
- Department of Geriatric Health, Faculty of Health Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Tannaz Novinbahador
- Department of Biology, Faculty of Natural Science, University of Tabriz, Tabriz, Iran
- Physical Medicine and Rehabilitation Research Center, Aging Research Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mehdi Yousefi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mahdi Shiri
- Department of Pharmacology, School of Medicine, AJA University of Medical Sciences, Tehran, Iran
| | - Ata Mahmoodpoor
- Department of Anesthesiology and Critical Care Medicine, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ali Shamekh
- Student Research Committee, Aging Research Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Nazli Namazi
- Research Center for Integrative Medicine in Aging, Aging Research Institute, Tabriz University of Medical Sciences, Tabriz, Iran
- Diabetes Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Sarvin Sanaie
- Research Center of Psychiatry and Behavioral Sciences, Aging Research Institute, Tabriz University of Medical Sciences, Tabriz, Iran
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Nguyen DV, Hengphasatporn K, Danova A, Suroengrit A, Boonyasuppayakorn S, Fujiki R, Shigeta Y, Rungrotmongkol T, Chavasiri W. Structure-yeast α-glucosidase inhibitory activity relationship of 9-O-berberrubine carboxylates. Sci Rep 2023; 13:18865. [PMID: 37914757 PMCID: PMC10620162 DOI: 10.1038/s41598-023-45116-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Accepted: 10/16/2023] [Indexed: 11/03/2023] Open
Abstract
Thirty-five 9-O-berberrubine carboxylate derivatives were synthesized and evaluated for yeast α-glucosidase inhibitory activity. All compounds demonstrated better inhibitory activities than the parent compounds berberine (BBR) and berberrubine (BBRB), and a positive control, acarbose. The structure-activity correlation study indicated that most of the substituents on the benzoate moiety such as methoxy, hydroxy, methylenedioxy, benzyloxy, halogen, trifluoromethyl, nitro and alkyl can contribute to the activities except multi-methoxy, fluoro and cyano. In addition, replacing benzoate with naphthoate, cinnamate, piperate or diphenylacetate also led to an increase in inhibitory activities except with phenyl acetate. 9, 26, 27, 28 and 33 exhibited the most potent α-glucosidase inhibitory activities with the IC50 values in the range of 1.61-2.67 μM. Kinetic study revealed that 9, 26, 28 and 33 interacted with the enzyme via competitive mode. These four compounds were also proved to be not cytotoxic at their IC50 values. The competitive inhibition mechanism of these four compounds against yeast α-glucosidase was investigated using molecular docking and molecular dynamics simulations. The binding free energy calculations suggest that 26 exhibited the strongest binding affinity, and its binding stability is supported by hydrophobic interactions with D68, F157, F158 and F177. Therefore, 9, 26, 28 and 33 would be promising candidates for further studies of antidiabetic activity.
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Affiliation(s)
- Duy Vu Nguyen
- Department of Chemistry, Faculty of Science, Center of Excellence in Natural Products Chemistry, Chulalongkorn University, Pathumwan, Bangkok, 10330, Thailand
| | - Kowit Hengphasatporn
- Center for Computational Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8577, Japan
| | - Ade Danova
- Department of Chemistry, Faculty of Science, Center of Excellence in Natural Products Chemistry, Chulalongkorn University, Pathumwan, Bangkok, 10330, Thailand
- Organic Chemistry Division, Department of Chemistry, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Bandung, West Java, 40132, Indonesia
| | - Aphinya Suroengrit
- Department of Microbiology, Faculty of Medicine, Center of Excellence in Applied Medical Virology, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Siwaporn Boonyasuppayakorn
- Department of Microbiology, Faculty of Medicine, Center of Excellence in Applied Medical Virology, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Ryo Fujiki
- Center for Computational Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8577, Japan
| | - Yasuteru Shigeta
- Center for Computational Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8577, Japan
| | - Thanyada Rungrotmongkol
- Bioinformatics and Computational Biology Program, Graduated School, Chulalongkorn University, Bangkok, 10330, Thailand
- Department of Biochemistry, Faculty of Science, Center of Excellence in Biocatalyst and Sustainable Biotechnology, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Warinthorn Chavasiri
- Department of Chemistry, Faculty of Science, Center of Excellence in Natural Products Chemistry, Chulalongkorn University, Pathumwan, Bangkok, 10330, Thailand.
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Kumari S, Saini R, Bhatnagar A, Mishra A. Exploring plant-based alpha-glucosidase inhibitors: promising contenders for combatting type-2 diabetes. Arch Physiol Biochem 2023:1-16. [PMID: 37767958 DOI: 10.1080/13813455.2023.2262167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 09/15/2023] [Indexed: 09/29/2023]
Abstract
Objective: This systematic review aimed to provide comprehensive details on the α-G inhibitory potential of various bioactive compounds derived from natural sources.Methods: A comprehensive literature search was conducted using various databases and search engines, including Science Direct, Google Scholar, SciFinder, Web of Science, and PubMed until May, 2023.Results and conclusions: The enzyme alpha-glucosidase (α-G) is found in the brush border epithelium of the small intestine and consists of duplicated glycoside hydrolase (GH31) domain. It involves the conversion of disaccharides and oligosaccharides into monosaccharides by acting on alpha (1 → 4) and (1 → 6) linked glucose residue. Once absorbed, glucose enters the bloodstream and elevates postprandial glucose, which is associated with the development of type 2 Diabetes (T2D). Epidemic obesity, cardiovascular disease, and nephropathy are linked to T2D. Traditional medicinal plants with α-G inhibitory potential are commonly used to treat T2D due to the adverse effects of currently used α-G inhibitors miglitol, acarbose, and voglibose. Various bioactive compounds derived from natural sources, including lupenone, Wilforlide A, Baicalein, Betulinic acid, Ursolic acid, Oleanolic acid, Katononic acid, Carnosol, Hypericin, Astilbin, lupeol, betulonic acid, Fagomine, Lactucaxanthin, Erythritol, GP90-1B, Procyanidins, Galangin, and vomifoliol retain α-G inhibitory potential for regulating hyperglycaemia.
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Affiliation(s)
- Sonali Kumari
- School of Biochemical Engineering, Indian Institute of Technology (BHU), Varanasi, India
| | - Ravi Saini
- School of Biochemical Engineering, Indian Institute of Technology (BHU), Varanasi, India
| | - Aditi Bhatnagar
- School of Biochemical Engineering, Indian Institute of Technology (BHU), Varanasi, India
| | - Abha Mishra
- School of Biochemical Engineering, Indian Institute of Technology (BHU), Varanasi, India
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Frederico MJS, Cipriani A, Heim JBA, Mendes AKB, Aragón M, Gaspar JM, De Alencar NMN, Silva FRMB. Electrophilic Agonists Modulate the Transient Receptor Potential Ankyrin-1 Channels Mediated by Insulin and Glucagon-like Peptide-1 Secretion for Glucose Homeostasis. Pharmaceuticals (Basel) 2023; 16:1167. [PMID: 37631083 PMCID: PMC10458466 DOI: 10.3390/ph16081167] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 08/07/2023] [Accepted: 08/09/2023] [Indexed: 08/27/2023] Open
Abstract
This pre-clinical study investigated the transient receptor potential ankyrin-1 (TRPA1) channels on modulating targets for glucose homeostasis using agonists: the electrophilic agonists, cinnamaldehyde (CIN) and allyl isothiocyanate (AITC), and the non-electrophilic agonist, carvacrol (CRV). A glucose tolerance test was performed on rats. CIN and AITC (5, 10 and 20 mg/kg) or CRV (25, 100, 300, and 600 mg/kg) were administered intraperitoneally (i.p.), and glycemia was measured. In the intestine, Glucagon-like peptide-1 (GLP-1) and disaccharidase activity were evaluated (in vivo and in vitro, respectively). Furthermore, in vivo and in vitro insulin secretion was determined. Islets were used to measure insulin secretion and calcium influx. CIN and AITC improved glucose tolerance and increased insulin secretion in vivo and in vitro. CRV was unable to reduce glycemia. Electrophilic agonists, CIN and AITC, inhibited disaccharidases and acted as secretagogues in the intestine by inducing GLP-1 release in vivo and in vitro and contributed to insulin secretion and glycemia. The effect of CIN on calcium influx in pancreatic islets (insulin secretion) involves voltage-dependent calcium channels and calcium from stores. TRPA1 triggers calcium influx and potentiates intracellular calcium release to induce insulin secretion, suggesting that electrophilic agonists mediate this signaling transduction for the control of glycemia.
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Affiliation(s)
- Marisa Jadna Silva Frederico
- Laboratory of Hormones & Signal Transduction, Departament of Biochemistry, Center of Biological Sciences, Campus Trindade, Federal University of Santa Catarina, Florianópolis 88040-900, SC, Brazil; (A.C.); (J.B.A.H.); (A.K.B.M.); (J.M.G.)
- Laboratory of Biochemistry and Pharmacology, Departament of Pharmacology and Physiology, Drug Research and Development Center (DRDC), Medical School, Federal University of Ceará, Rua Coronel Nunes de Melo, Fortaleza 60430-275, CE, Brazil;
| | - Andreza Cipriani
- Laboratory of Hormones & Signal Transduction, Departament of Biochemistry, Center of Biological Sciences, Campus Trindade, Federal University of Santa Catarina, Florianópolis 88040-900, SC, Brazil; (A.C.); (J.B.A.H.); (A.K.B.M.); (J.M.G.)
| | - Jocelyn Brice Alexandre Heim
- Laboratory of Hormones & Signal Transduction, Departament of Biochemistry, Center of Biological Sciences, Campus Trindade, Federal University of Santa Catarina, Florianópolis 88040-900, SC, Brazil; (A.C.); (J.B.A.H.); (A.K.B.M.); (J.M.G.)
| | - Ana Karla Bittencourt Mendes
- Laboratory of Hormones & Signal Transduction, Departament of Biochemistry, Center of Biological Sciences, Campus Trindade, Federal University of Santa Catarina, Florianópolis 88040-900, SC, Brazil; (A.C.); (J.B.A.H.); (A.K.B.M.); (J.M.G.)
| | - Marcela Aragón
- Departament of Pharmacy, Science School, National University of Colombia, Bogotá 11011, Colombia;
| | - Joana Margarida Gaspar
- Laboratory of Hormones & Signal Transduction, Departament of Biochemistry, Center of Biological Sciences, Campus Trindade, Federal University of Santa Catarina, Florianópolis 88040-900, SC, Brazil; (A.C.); (J.B.A.H.); (A.K.B.M.); (J.M.G.)
| | - Nylane Maria Nunes De Alencar
- Laboratory of Biochemistry and Pharmacology, Departament of Pharmacology and Physiology, Drug Research and Development Center (DRDC), Medical School, Federal University of Ceará, Rua Coronel Nunes de Melo, Fortaleza 60430-275, CE, Brazil;
| | - Fátima Regina Mena Barreto Silva
- Laboratory of Hormones & Signal Transduction, Departament of Biochemistry, Center of Biological Sciences, Campus Trindade, Federal University of Santa Catarina, Florianópolis 88040-900, SC, Brazil; (A.C.); (J.B.A.H.); (A.K.B.M.); (J.M.G.)
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Cortez-Navarrete M, Pérez-Rubio KG, Escobedo-Gutiérrez MDJ. Role of Fenugreek, Cinnamon, Curcuma longa, Berberine and Momordica charantia in Type 2 Diabetes Mellitus Treatment: A Review. Pharmaceuticals (Basel) 2023; 16:ph16040515. [PMID: 37111272 PMCID: PMC10145167 DOI: 10.3390/ph16040515] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 03/25/2023] [Accepted: 03/28/2023] [Indexed: 04/03/2023] Open
Abstract
Type 2 diabetes mellitus (T2DM) is a complex disease that has become a major global health concern. Given the efficacy of antidiabetic drugs, pharmacological therapy is considered the first-line treatment of T2DM; however, due to their potential side effects and high costs, new and cost-effective treatments with minimal side effects are needed. Medicinal plants have been used for centuries as part of traditional medicine to treat T2DM. Among these, fenugreek, cinnamon, Curcuma longa, berberine, and Momordica charantia have demonstrated different degrees of hypoglycemic activity in clinical studies and animal models. Therefore, the aim of this review is to synthesize the mechanisms of action of five medicinal plants, as well as the experimental and clinical evidence of their hypoglycemic activity from the published literature.
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Affiliation(s)
- Marisol Cortez-Navarrete
- Institute of Experimental and Clinical Therapeutics, Department of Physiology, Health Science University Center, University of Guadalajara, Sierra Mojada 950, Col. Independencia, Guadalajara 44340, Jalisco, Mexico
| | - Karina G. Pérez-Rubio
- Institute of Experimental and Clinical Therapeutics, Department of Physiology, Health Science University Center, University of Guadalajara, Sierra Mojada 950, Col. Independencia, Guadalajara 44340, Jalisco, Mexico
| | - Miriam de J. Escobedo-Gutiérrez
- Institute of Experimental and Clinical Therapeutics, Department of Physiology, Health Science University Center, University of Guadalajara, Sierra Mojada 950, Col. Independencia, Guadalajara 44340, Jalisco, Mexico
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Das M, Gurusiddaiah SK. Ergosterol fraction from Agaricus bisporus modulates adipogenesis and skeletal glucose uptake in high fat diet induced obese C57BL/6 mice. Life Sci 2023; 315:121337. [PMID: 36592786 DOI: 10.1016/j.lfs.2022.121337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 12/21/2022] [Accepted: 12/26/2022] [Indexed: 12/31/2022]
Abstract
AIM The study aimed to optimize a method of extracting ergosterol rich concentrate (ECF) and to evaluate its significant impact on adipogenesis and associated complications in high-fat diet (HFD) induced obese mice. METHODS A comparative analysis (soxhlet and ultra sound assisted extraction) was done to obtain the highest yield of ergosterol from Agaricus bisporus. The ECF was evaluated for the biological effect on 3T3-L1 pre-adipocytes in-vitro and in male C57BL/6 mice model in-vivo. KEY FINDINGS Ultra sound assisted extraction method using the solvent n-hexane resulted in highest ergosterol yield. ECF treatment significantly reduced the differentiation and lipid accumulation in pre-adipocyte cells without any cytotoxicity. In-vivo study illustrated beneficial impact on cholesterol metabolism by down regulating the hepatic gene expression of LXR-α, HMG-CoR and up-regulating LDL-R expression. Significant increase in fecal excretion of cholesterol and bile acids have also been observed among the ECF treated animals compared to high fat diet (HFD) fed mice. ECF had an anti-adipogenic activity in-vivo mainly by inhibiting the activity of PPAR-γ, C/EBP-α and SREBP-1c. The results also depicted the improvement of obesity associated insulin resistance by ECF treatment manly via decrease in plasma resistin and up-regulation in skeletal GLUT4 protein expression. SIGNIFICANCE Our study illustrated diverse activity of ECF in the therapeutic management of obesity associated metabolic complications mainly by reducing adipogenesis and improving glucose uptake in skeletal muscle in conjunction with improved cholesterol metabolism.
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Affiliation(s)
- Moumita Das
- Department of Biochemistry, CSIR-Central Food Technological Research Institute, Mysore 570 020, Karnataka, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Suresh Kumar Gurusiddaiah
- Department of Biochemistry, CSIR-Central Food Technological Research Institute, Mysore 570 020, Karnataka, India.
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Zhang M, Yang H, Yang E, Li J, Dong L. Berberine Decreases Intestinal GLUT2 Translocation and Reduces Intestinal Glucose Absorption in Mice. Int J Mol Sci 2021; 23:327. [PMID: 35008753 PMCID: PMC8745600 DOI: 10.3390/ijms23010327] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 12/09/2021] [Accepted: 12/24/2021] [Indexed: 12/12/2022] Open
Abstract
Postprandial hyperglycemia is an important causative factor of type 2 diabetes mellitus, and permanent localization of intestinal GLUT2 in the brush border membrane is an important reason of postprandial hyperglycemia. Berberine, a small molecule derived from Coptidis rhizome, has been found to be potent at lowering blood glucose, but how berberine lowers postprandial blood glucose is still elusive. Here, we investigated the effect of berberine on intestinal glucose transporter 2 (GLUT2) translocation and intestinal glucose absorption in type 2 diabetes mouse model. Type 2 diabetes was induced by feeding of a high-fat diet and injection of streptozotocin and diabetic mice were treated with berberine for 6 weeks. The effects of berberine on intestinal glucose transport and GLUT2 translocation were accessed in isolated intestines and intestinal epithelial cells (IEC-6), respectively. We found that berberine treatment improved glucose tolerance and systemic insulin sensitivity in diabetic mice. Furthermore, berberine decreased intestinal glucose transport and inhibited GLUT2 translocation from cytoplasm to brush border membrane in intestinal epithelial cells. Mechanistically, berberine inhibited intestinal insulin-like growth factor 1 (IGF-1R) phosphorylation and thus reduced localization of PLC-β2 in the membrane, leading to decreased GLUT2 translocation. These results suggest that berberine reduces intestinal glucose absorption through inhibiting IGF-1R-PLC-β2-GLUT2 signal pathway.
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Affiliation(s)
| | | | | | | | - Ling Dong
- Key Laboratory of Aerospace Medicine of the Ministry of Education, School of Aerospace Medicine, Air Force Military Medical University, Xi’an 710032, China; (M.Z.); (H.Y.); (E.Y.); (J.L.)
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Berberine and lycopene as alternative or add-on therapy to metformin and statins, a review. Eur J Pharmacol 2021; 913:174590. [PMID: 34801530 DOI: 10.1016/j.ejphar.2021.174590] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Revised: 10/19/2021] [Accepted: 10/19/2021] [Indexed: 12/27/2022]
Abstract
Nutraceuticals are principally extracted from natural products that are frequently safe and well-tolerated. Lycopene and berberine are natural plants with a wide range of beneficial effects including protective activities against metabolic disorders such as diabetes and cardiovascular diseases. These compounds might be considered technically more as a drug than a nutraceutical and could be prescribed as a product. However, further studies are needed to understand if these supplements could affect metabolic syndrome outcomes. Even if nutraceuticals exert a prophylactic activity within the body, their bioactivity and bioavailability have high interindividual variation, and precise assessment of biological function of these bioactive compounds in randomized clinical trials is critical. However, these reports must be interpreted with more considerations due to the low quality of the trials. The aim of this paper is to bring evidence about the management of cardiovascular diseases and diabetes through the use of nutraceuticals with particular attention to lycopene and berberine effectiveness.
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Potencjalne możliwości wykorzystania berberyny w przeciwdziałaniu insulinooporności i w cukrzycy typu 2. POSTEP HIG MED DOSW 2021. [DOI: 10.2478/ahem-2021-0038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Abstrakt
Insulinooporność to stan zmniejszonej wrażliwości tkanek docelowych na działanie insuliny, mimo jej prawidłowego lub podwyższonego stężenia w surowicy krwi. Jest ważnym czynnikiem w patogenezie zespołu metabolicznego, w tym stanu przedcukrzycowego i cukrzycy typu 2, a także chorób sercowo-naczyniowych oraz zespołu policystycznych jajników. Wzrasta zainteresowanie wykorzystaniem środków pochodzenia roślinnego w leczeniu pacjentów z chorobami metabolicznymi. Jednymi z nich są rośliny z rodziny berberysowatych zawierające alkaloidy izochinolinowe, takie jak berberyna. Sugeruje się, iż berberyna może wpływać na zmniejszenie insulinooporności, gospodarkę węglowodanową oraz metabolizm lipidów. Naukowcy wykazali, że ten roślinny alkaloid może tłumić różnicowanie adipocytów i wspomagać redukcję masy ciała. Inne właściwości berberyny obejmują działanie hipotensyjne oraz ochronne wobec śródbłonka naczyniowego. W artykule skoncentrowano się przede wszystkim na przedstawieniu potencjalnych możliwości wykorzystania berberyny w przeciwdziałaniu insulinooporności w cukrzycy typu 2.
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Srivastava S, Singh PR. Oral Administration of Lactobacillus casei and Bifidobacterium bifidum Improves Glucagon like Peptide-1(GLP-1) and Glucose-Dependent Insulinotropic Polypeptide (GIP) Level in Streptozotocin Induced Diabetic Rats. CURRENT RESEARCH IN NUTRITION AND FOOD SCIENCE JOURNAL 2021. [DOI: 10.12944/crnfsj.9.2.07] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The gut microbiome plays significant role in the function and integrity of the gastrointestinal tract. They also maintain immune homeostasis and host energy metabolism. The metabolic products of these intestinal microbes can alter carbohydrate metabolism, nutrient absorption and reduce appetite to promote healthy lifestyle. Intestinal disbiosis observed in metabolic disorders like obesity and diabetes. Restoration of dysbiosed gut microbiome through oral administration of probiotics that may have profound health effect in diabetes. In case of diabetes, reports postulated impaired level of incretin, therefore we explored the effect of oral administration of probiotic bacteria Lactobacillus casei NCDC 017 (LC017) and Bifidobacterium bifidum NCDC 231 (BB231) alone and in combination on secretion of incretin hormones such as glucagon like peptide-1 and glucose dependent insulinotropic polypeptide. Thirty six male Wistar rats were randomly divided into six groups and diabetes was induced by single dose of streptozotocin (50 mg/kg body weight) in experimental rats intraperitonially except a group of healthy rats. The diabetic rats were daily administered orally with single dose (~107cfu/ml) of LC017 and BB231 alone and in combination for 28 days. Also, one group of diabetic rats was treated with an anti-diabetic drug, acarbose (10mg/kg body weight) and used a standard control. The change in body weight, sucrose tolerance test, GLP-1, GIP level in serum and GLP-1 level in different part of intestine were observed. The results have shown reduction in body weight in diabetic rats as compared to non-diabetic rats but improved after treatment of probiotic bacteria. Administration of LC017 and BB231 significantly improved GLP-1 and GIP level which were initially impaired in diabetic rats and their combination significantly decreased glucose level in sucrose tolerance test. This study indicated that LC017 and BB231 have significant hypoglycaemic potential in diabetic rats by increasing GLP-1 and GIP level. These findings offered a base for the use of LC017 and BB231 for improvement and treatment of diabetes.
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Affiliation(s)
- Sumiran Srivastava
- 1Department of Biotechnology, Bundelkhand University, Jhansi, Uttar Pradesh, India
| | - Prof. Rambir Singh
- 2Department of Horticulture, Aromatic and Medicinal Plants, Mizoram University, Aizawl, Mizoram, India
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Lyu Y, Lin L, Xie Y, Li D, Xiao M, Zhang Y, Cheung SCK, Shaw PC, Yang X, Chan PKS, Kong APS, Zuo Z. Blood-Glucose-Lowering Effect of Coptidis Rhizoma Extracts From Different Origins via Gut Microbiota Modulation in db/db Mice. Front Pharmacol 2021; 12:684358. [PMID: 34211397 PMCID: PMC8239385 DOI: 10.3389/fphar.2021.684358] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 05/27/2021] [Indexed: 01/14/2023] Open
Abstract
Background:Coptidis rhizoma extracts (CREs) have been used widely for their anti-diabetic and anti-microbial activities, and berberine/jatrorrhizine/coptisine/palmatine are the primary bioactive components. Although guidelines have adopted content analyses of these components as a quality control method for CREs, it is difficult to differentiate the CREs from different sources using this method because of the lack of indications for their related pharmacological activities. Purpose: To explore the effect of CREs (CREA/CREB/CREC) with different compositions of major components on the gut microbiota and blood glucose levels in db/db mice. Methods: Degradation of berberine/jatrorrhizine/coptisine/palmatine from CREA/CREB/CREC in rat/mouse intestinal contents and their impact on nine common gastrointestinal bacteria were investigated. In addition, the effects of oral administration of CREA/CREB/CREC for 2 weeks on the gut microbiota and blood glucose levels in db/db mice were monitored via insulin/glucose tolerance test (ITT/GTT), insulin concentration, homeostatic model assessment of insulin resistance and fecal 16S rRNA sequencing. Results and Conclusion: The total amount of berberine/jatrorrhizine/coptisine/palmatine was highest in CREA. Clostridium perfringens was strongly inhibited by all three CREs, with CREA demonstrating the most significant inhibitory effects on minimum inhibitory concentration, time-kill kinetics, and ATP production. In db/db mice, CREA resulted in the most significant decrease in ITT/GTT and depicted different changes in the microbiota from CREB/CREC. Thus, CREs with different compositions of berberine/jatrorrhizine/coptisine/palmatine differed in terms of time-kill kinetics and ATP production assays on C. perfringens. CREA revealed the potent bacterial inhibitory effects and glucose-lowering activity.
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Affiliation(s)
- Yuanfeng Lyu
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, China
| | - Lin Lin
- Department of Microbiology, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, China
| | - Yuning Xie
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, China
| | - Dan Li
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, China
| | - Min Xiao
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, China
| | - Yufeng Zhang
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, China
| | - Stanley Chun Kai Cheung
- School of Life Sciences and Li Dak Sum Yip Yio Chin R&D Centre for Chinese Medicine, The Chinese University of Hong Kong, Shatin, China
| | - Pang Chui Shaw
- School of Life Sciences and Li Dak Sum Yip Yio Chin R&D Centre for Chinese Medicine, The Chinese University of Hong Kong, Shatin, China
| | - Xiao Yang
- Department of Microbiology, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, China
| | - Paul Kay Sheung Chan
- Department of Microbiology, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, China
| | - Alice Pik Shan Kong
- Division of Endocrinology, Department of Medicine and Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, China
| | - Zhong Zuo
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, China
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13
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Glucose absorption regulation and mechanism of the compounds in Lilium lancifolium Thunb on Caco-2 cells. Food Chem Toxicol 2021; 149:112010. [PMID: 33493636 DOI: 10.1016/j.fct.2021.112010] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 01/11/2021] [Accepted: 01/16/2021] [Indexed: 11/22/2022]
Abstract
In this paper, the Caco-2 cell was used to study the glucose absorption regulation and mechanism of kaempferol, caffeic acid and quercetin-3-O-β-D-galactoside in Lilium lancifolium Thunb in vitro. Glucose oxidase-peroxidase (GOD-POD) method was used to measure glucose consumption in supernatant. The fluorescent D-glucose analog (2-NBDG) was used as a tracer probe to study the changes in the fluorescence intensity of 2-NBDG uptake by Caco-2 cells with an inverted fluorescence microscope. Western blotting and quantitative real-time PCR were used to detect the protein expression and mRNA transcription of SGLT1 and GLUT2. The results showed that caffeic acid and quercetin-3-O-β-D-galactoside could significantly promote the absorption of glucose by normal Caco-2 cells compared with the control group (P < 0.001). Both caffeic acid and quercetin-3-O-β-D-galactoside could significantly promote the uptake of glucose tracer 2-NBDG on Caco-2 cells. Caffeic acid and quercetin-3-O-β-D-galactoside could significantly promote SGLT1 and GLUT2 protein expression levels and mRNA transcription (P < 0.001, P < 0.01, P < 0.05). The mechanism might be related to the promotion of SGLT1 and GLUT2 protein expression levels and mRNA transcription.
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14
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Amin AR, Kassab RB, Abdel Moneim AE, Amin HK. Comparison Among Garlic, Berberine, Resveratrol,Hibiscus sabdariffa, GenusZizyphus, Hesperidin, Red Beetroot,Catha edulis,Portulaca oleracea, and Mulberry Leaves in the Treatment of Hypertension and Type 2 DM: A Comprehensive Review. Nat Prod Commun 2020. [DOI: 10.1177/1934578x20921623] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Diabetes mellitus (DM) and hypertension are 2 of the most prevalent diseases with poor impact on health status worldwide. In most cases, they coexist with other metabolic disorders as well as cardiac, micro- and macrovascular complications. Many plants are known for their hypotensive, cardioprotective, and/or antidiabetic activities. Their active ingredients either identified and isolated or still utilized as herbal preparations of certain plant parts. The use of medicinal plants comprises the main basis for most of the traditional medicine (TM) systems and procedures. As conventional medicines seem insufficient to control such progressive diseases, herbal agents from TM could be used as adjuvant with good impact on disease control and progression as well as other concomitant health conditions. The aim of this study is to compare the efficacy of 10 different herbal medicines of botanical origin or herbal preparations in the management of hypertension and its cardiovascular complications and type 2 DM along with various coexisting health disorders. These herbal medicines are garlic, berberine, resveratrol, Hibiscus sabdariffa, Zizyphus ( oxyphylla, mucronate, jujube, rugosa), hesperidin, red beetroot, Catha edulis, mulberry leaves, and Portulaca oleracea.
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Affiliation(s)
- Amira R. Amin
- Cardiology and Oncology Section, Nasser Institute for Research and Treatment, Cairo, Egypt
| | - Rami B. Kassab
- Department of Zoology and Entomology, Faculty of Science, Helwan University, Cairo, Egypt
| | - Ahmed E. Abdel Moneim
- Department of Zoology and Entomology, Faculty of Science, Helwan University, Cairo, Egypt
| | - Hatem K. Amin
- Department of Biochemistry and Molecular Biology, Faculty of Pharmacy, Helwan University, Egypt
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15
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Shinjyo N, Parkinson J, Bell J, Katsuno T, Bligh A. Berberine for prevention of dementia associated with diabetes and its comorbidities: A systematic review. JOURNAL OF INTEGRATIVE MEDICINE-JIM 2020; 18:125-151. [PMID: 32005442 DOI: 10.1016/j.joim.2020.01.004] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 12/04/2019] [Indexed: 02/06/2023]
Abstract
BACKGROUND A growing number of epidemiological studies indicate that metabolic syndrome (MetS) and its associated features play a key role in the development of certain degenerative brain disorders, including Alzheimer's disease and vascular dementia. Produced by several different medicinal plants, berberine is a bioactive alkaloid with a wide range of pharmacological effects, including antidiabetic effects. However, it is not clear whether berberine could prevent the development of dementia in association with diabetes. OBJECTIVE To give an overview of the therapeutic potential of berberine as a treatment for dementia associated with diabetes. SEARCH STRATEGY Database searches A and B were conducted using PubMed and ScienceDirect. In search A, studies on berberine's antidementia activities were identified using "berberine" and "dementia" as search terms. In search B, recent studies on berberine's effects on diabetes were surveyed using "berberine" and "diabetes" as search terms. INCLUSION CRITERIA Clinical and preclinical studies that investigated berberine's effects associated with MetS and cognitive dysfunction were included. DATA EXTRACTION AND ANALYSIS Data from studies were extracted by one author, and checked by a second; quality assessments were performed independently by two authors. RESULTS In search A, 61 articles were identified, and 22 original research articles were selected. In search B, 458 articles were identified, of which 101 were deemed relevant and selected. Three duplicates were removed, and a total of 120 articles were reviewed for this study. The results demonstrate that berberine exerts beneficial effects directly in the brain: enhancing cholinergic neurotransmission, improving cerebral blood flow, protecting neurons from inflammation, limiting hyperphosphorylation of tau and facilitating β-amyloid peptide clearance. In addition, evidence is growing that berberine is effective against diabetes and associated disorders, such as atherosclerosis, cardiomyopathy, hypertension, hepatic steatosis, diabetic nephropathy, gut dysbiosis, retinopathy and neuropathy, suggesting indirect benefits for the prevention of dementia. CONCLUSION Berberine could impede the development of dementia via multiple mechanisms: preventing brain damages and enhancing cognition directly in the brain, and indirectly through alleviating risk factors such as metabolic dysfunction, and cardiovascular, kidney and liver diseases. This study provided evidence to support the value of berberine in the prevention of dementia associated with MetS.
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Affiliation(s)
- Noriko Shinjyo
- Department of Infection and Host Defense, Graduate School of Medicine, Chiba University, Chuo-ku, Chiba 260-8670, Japan.
| | - James Parkinson
- Department of Life Sciences, Faculty of Science and Technology at the University of Westminster, London W1W 6UW, United Kingdom
| | - Jimmy Bell
- Department of Life Sciences, Faculty of Science and Technology at the University of Westminster, London W1W 6UW, United Kingdom.
| | - Tatsuro Katsuno
- Kashiwanoha Clinic of East Asian Medicine, Chiba University Hospital, Kashiwa, Chiba 277-0882, Japan
| | - Annie Bligh
- School of Health Sciences, Caritas Institute of Higher Education, Tseung Kwan O, NT 999077, Hong Kong, China.
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16
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Wang J, Wang L, Lou GH, Zeng HR, Hu J, Huang QW, Peng W, Yang XB. Coptidis Rhizoma: a comprehensive review of its traditional uses, botany, phytochemistry, pharmacology and toxicology. PHARMACEUTICAL BIOLOGY 2019; 57:193-225. [PMID: 30963783 PMCID: PMC6461078 DOI: 10.1080/13880209.2019.1577466] [Citation(s) in RCA: 221] [Impact Index Per Article: 44.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 01/04/2019] [Accepted: 01/20/2019] [Indexed: 05/09/2023]
Abstract
CONTEXT Coptidis rhizome (CR), also known as Huanglian in Chinese, is the rhizome of Coptis chinensis Franch., C. deltoidea C.Y. Cheng et Hsiao, or C. teeta Wall (Ranunculaceae). It has been widely used to treat bacillary dysentery, diabetes, pertussis, sore throat, aphtha, and eczema in China. OBJECTIVES The present paper reviews the latest advances of CR, focusing on the botany, phytochemistry, traditional usages, pharmacokinetics, pharmacology and toxicology of CR and its future perspectives. METHODS Studies from 1985 to 2018 were reviewed from books; PhD. and MSc. dissertations; the state and local drug standards; PubMed; CNKI; Scopus; the Web of Science; and Google Scholar using the keywords Coptis, Coptidis Rhizoma, Huanglian, and goldthread. RESULTS Currently, 128 chemical constituents have been isolated and identified from CR. Alkaloids are the characteristic components, together with organic acids, coumarins, phenylpropanoids and quinones. The extracts/compounds isolated from CR cover a wide pharmacological spectrum, including antibacterial, antivirus, antifungal, antidiabetic, anticancer and cardioprotective effects. Berberine is the most important active constituent and the primary toxic component of CR. CONCLUSIONS As an important herbal medicine in Chinese medicine, CR has the potential to treat various diseases. However, further research should be undertaken to investigate the clinical effects, toxic constituents, target organs and pharmacokinetics, and to establish criteria for quality control, for CR and its related medications. In addition, the active constituents, other than alkaloids, in both raw and processed products of CR should be investigated.
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Affiliation(s)
- Jin Wang
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Lin Wang
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Guan-Hua Lou
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Hai-Rong Zeng
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Ju Hu
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Qin-Wan Huang
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Wei Peng
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xiang-Bo Yang
- Ya'an Xun Kang Pharmaceutical Co., Ltd, Ya'an, China
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17
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Ran Q, Wang J, Wang L, Zeng HR, Yang XB, Huang QW. Rhizoma coptidis as a Potential Treatment Agent for Type 2 Diabetes Mellitus and the Underlying Mechanisms: A Review. Front Pharmacol 2019; 10:805. [PMID: 31396083 PMCID: PMC6661542 DOI: 10.3389/fphar.2019.00805] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2018] [Accepted: 06/21/2019] [Indexed: 02/06/2023] Open
Abstract
Diabetes mellitus, especially type 2 diabetes mellitus (T2DM), has become a significant public health burden. Rhizoma coptidis (RC), known as Huang Lian, is widely used for treating diabetes in China. The bioactive compounds of RC, especially alkaloids, have the potential to suppress T2DM-induced lesions, including diabetic vascular dysfunction, diabetic heart disease, diabetic hyperlipidemia, diabetic nephropathy, diabetic encephalopathy, diabetic osteopathy, diabetic enteropathy, and diabetic retinopathy. This review summarizes the effects of RC and its bioactive compounds on T2DM and T2DM complications. Less research has been conducted on non-alkaloid fractions of RC, which may exert synergistic action with alkaloids. Moreover, we summarized the pharmacokinetic properties and structure-activity relationships of RC on T2DM with reference to extant literature and showed clearly that RC has potential therapeutic effect on T2DM.
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Affiliation(s)
- Qian Ran
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jin Wang
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Lin Wang
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Hai-rong Zeng
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xiang-bo Yang
- Ya’an Xun Kang Pharmaceutical Co., Ltd, Ya’an, China
| | - Qin-wan Huang
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
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18
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Mehraban MH, Mansourian M, Ahrari S, HajiEbrahimi A, Odooli S, Motovali-Bashi M, Yousefi R, Ghasemi Y. Maltase-glucoamylase inhibition potency and cytotoxicity of pyrimidine-fused compounds: An in silico and in vitro approach. Comput Biol Chem 2019; 82:25-36. [PMID: 31255972 DOI: 10.1016/j.compbiolchem.2019.06.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 01/29/2019] [Accepted: 06/12/2019] [Indexed: 11/25/2022]
Abstract
The prevalence of diabetes mellitus has been incremented in the current century and the need for novel therapeutic compounds to treat this disease has been significantly increased. One of the most promising approaches is to inhibit intestinal alpha glucosidases. Based on our previous studies, four pyrimidine-fused heterocycles (PFH) were selected as they revealed satisfactory inhibitory action against mammalian α-glucosidase. The interaction of these compounds with both active domains of human maltase-glucoamylase (MGAM) and their effect on human Caco-2 cell line were investigated. The docking assessments suggested that binding properties of these ligands were almost similar to that of acarbose by establishing hydrogen bonds especially with Tyr1251 and Arg526 in both C-terminal and N-terminal MGAM, respectively. Also, these compounds indicated a stronger affinity for C-terminal of MGAM. L2 and L4 made tightly complexes with both terminals of MGAM which in turn revealed the importance of introducing pyrimidine scaffold and its hinge compartment. The results of molecular dynamics simulation analyses confirmed the docking data and showed deep penetration of L2 and L4 into the active site of MGAM. Based on cell cytotoxicity assessments, no significant cell death induction was observed. Hence, these functional MGAM inhibitors might be considered as new potential therapeutic compounds in treatment of diabetes and its complications.
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Affiliation(s)
- Mohammad Hossein Mehraban
- Pharmaceutical Sciences Research Center, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran; Genetics Division, Biology Department, Faculty of Sciences, University of Isfahan, Isfahan, Iran
| | - Mahboubeh Mansourian
- Medicinal Plants Research Center, Yasuj University of Medical Sciences, Yasuj, Iran; Department of Pharmacology, Faculty of Medicine, Yasuj University of Medical Sciences, Yasuj, Iran
| | - Sajjad Ahrari
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ali HajiEbrahimi
- Pharmaceutical Sciences Research Center, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Salman Odooli
- Pharmaceutical Sciences Research Center, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Pharmaceutical Biotechnology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Majid Motovali-Bashi
- Genetics Division, Biology Department, Faculty of Sciences, University of Isfahan, Isfahan, Iran
| | - Reza Yousefi
- Protein Chemistry Laboratory (PCL), Department of Biology, College of Sciences, Shiraz University, Shiraz, Iran
| | - Younes Ghasemi
- Pharmaceutical Sciences Research Center, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Pharmaceutical Biotechnology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran.
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Identification of Digestive Enzyme Inhibitors from Ludwigia octovalvis (Jacq.) P.H.Raven. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2018; 2018:8781352. [PMID: 30105075 PMCID: PMC6076925 DOI: 10.1155/2018/8781352] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Revised: 06/06/2018] [Accepted: 06/26/2018] [Indexed: 12/30/2022]
Abstract
Current antiobesity and antidiabetic tools have been insufficient to curb these diseases and frequently cause side effects; therefore, new pancreatic lipase and α–glucosidase inhibitors could be excellent aids for the prevention and treatment of these diseases. The aim of this study was to identify, quantify, and characterize the chemical compounds with the highest degree of inhibitory activity of these enzymes, contained in a Ludwigia octovalvis hydroalcoholic extract. Chemical purification was performed by liquid–liquid separation and column chromatography. Inhibitory activities were measured in vitro, employing acarbose, orlistat, and a Camellia sinensis hydroalcoholic extract as references. For structural elucidation, Nuclear Magnetic Resonance was carried out, and High Performance Liquid Chromatography was used to quantify the compounds. For α–glucosidases, L. octovalvis hydroalcoholic extract and its ethyl acetate fraction showed half–maximal Inhibitory Concentration (IC50) values of 700 and 250 μg/mL, for lipase, 480 and 718 μg/mL, while C. sinensis showed 260 and 587 μg/mL. The most active compounds were identified as ethyl gallate (1, IC50 832 μM) and gallic acid (2, IC50 969 μM); both displayed competitive inhibition of α–glucosidases and isoorientin (3, IC50 201 μM), which displayed uncompetitive inhibition of lipase. These data could be useful in the development of a novel phytopharmaceutical drug.
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20
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Kim JI, Yun JA, Jeong YK, Baek HJ. Hypoglycemic and hypolipidemic effects of samnamul (shoot of Aruncus dioicus var. kamtschaticus Hara) in mice fed a high-fat/high-sucrose diet. Food Sci Biotechnol 2018; 27:1467-1473. [PMID: 30319857 DOI: 10.1007/s10068-018-0390-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 04/15/2018] [Accepted: 04/20/2018] [Indexed: 12/18/2022] Open
Abstract
The hypoglycemic and hypolipidemic effects of samnamul were investigated. The α-glucosidase inhibitory activity of samnamul in vivo was determined in normal mice. Oral administration of samnamul extract (500 mg/kg) or acarbose (50 mg/kg) significantly reduced the postprandial glucose response. The effects of chronic consumption of samnamul on fasting hyperglycemia and dyslipidemia were determined in C57BL/6 J mice with diabetes mellitus induced by a high-fat/high-sucrose (HFHS) diet. Consumption of samnamul extract at 0.5% of the diet for 12 weeks decreased serum glucose, triglyceride, and cholesterol levels, the homeostasis model assessment for insulin resistance index, and activities of maltase and sucrase in the small intestine. These results suggest that samnamul had hypoglycemic and hypolipidemic effects in an animal model of type 2 diabetes and that the hypoglycemic effect occurred partly via the inhibition of α-glucosidase activity.
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Affiliation(s)
- Jung-In Kim
- Department of Smart Foods and Drugs, School of Food and Life Science, Inje University, 197 Inje-ro, Gimhae, Gyeongsangnam-do 50834 Republic of Korea
| | - Jeong-A Yun
- Department of Smart Foods and Drugs, School of Food and Life Science, Inje University, 197 Inje-ro, Gimhae, Gyeongsangnam-do 50834 Republic of Korea
| | - Yoo-Kyung Jeong
- Department of Smart Foods and Drugs, School of Food and Life Science, Inje University, 197 Inje-ro, Gimhae, Gyeongsangnam-do 50834 Republic of Korea
| | - Hee-Jin Baek
- Department of Smart Foods and Drugs, School of Food and Life Science, Inje University, 197 Inje-ro, Gimhae, Gyeongsangnam-do 50834 Republic of Korea
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21
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A new polyacetylene glucoside from Vernonia scorpioides and its potential antihyperglycemic effect. Chem Biol Interact 2018; 279:95-101. [DOI: 10.1016/j.cbi.2017.11.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Revised: 05/16/2017] [Accepted: 11/01/2017] [Indexed: 11/18/2022]
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22
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Xu JH, Liu XZ, Pan W, Zou DJ. Berberine protects against diet-induced obesity through regulating metabolic endotoxemia and gut hormone levels. Mol Med Rep 2017; 15:2765-2787. [PMID: 28447763 PMCID: PMC5428400 DOI: 10.3892/mmr.2017.6321] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Accepted: 01/16/2017] [Indexed: 12/19/2022] Open
Abstract
Systemic inflammation, which can be induced by metabolic endotoxemia, and corresponding high‑fat diet‑mediated metabolic disorders are associated with gut microbiota. In the present study reverse transcription-polymerase chain reaction, immunofluorescence, pyrosequencing, ELISA and Oil Red O staining were performed to assess whether berberine can protect against diet-induced obesity, through modulating the gut microbiota and consequently improving metabolic endotoxemia and gastrointestinal hormone levels. Alterations in the gut microbiota induced by berberine resulted in a significant reduction in bacterial lipopolysaccharide levels in portal plasma. Levels of inflammatory and oxidative stress markers, as well as the mRNA expression levels of macrophage infiltration markers in visceral adipose tissue, were also reduced by berberine. Inhibition of the inflammatory response was associated with a reduction in intestinal permeability and an increase in the expression of tight junction proteins. In addition, berberine was reported to restore aberrant levels of gut hormones in the portal plasma, such as glucagon‑like peptide‑1 and ‑2, peptide YY, glucose‑dependent insulinotropic polypeptide and pancreatic polypeptide. The present findings indicated that berberine, through modulating gut microbiota, restored the gut barrier, reduced metabolic endotoxemia and systemic inflammation, and improved gut peptide levels in high‑fat diet‑fed rats. The present study suggests that berberine may be an effective therapeutic strategy for the treatment of obesity and insulin resistance.
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Affiliation(s)
- Jian Hui Xu
- Department of Endocrinology, Changhai Hospital, The Second Military Medical University, Shanghai 200433, P.R. China
| | - Xing Zhen Liu
- The Out‑Patient Department, Hangzhou Sanatorium of Nanjing Military Command Region, Hangzhou, Zhejiang 310007, P.R. China
| | - Wei Pan
- Department of Pathogen Biology, The Second Military Medical University, Shanghai 200433, P.R. China
| | - Da Jin Zou
- Department of Endocrinology, Changhai Hospital, The Second Military Medical University, Shanghai 200433, P.R. China
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Kang SJ, Park JHY, Choi HN, Kim JI. α-glucosidase inhibitory activities of myricetin in animal models of diabetes mellitus. Food Sci Biotechnol 2015. [DOI: 10.1007/s10068-015-0249-y] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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24
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Silva Frederico MJ, Mascarello A, Castro AJG, Da Luz G, Altenhofen D, Mendes CP, Leal PC, Yunes RA, Nunes RJ, Silva FRMB. Incretinomimetic and Insulinomimetic Effect of (2E)-N′-(1′-Naphthyl)-3,4,5-Trimethoxybenzohydrazide for Glycemic Homeostasis. J Cell Biochem 2015; 117:1199-209. [DOI: 10.1002/jcb.25403] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Accepted: 10/06/2015] [Indexed: 12/29/2022]
Affiliation(s)
- Marisa Jádna Silva Frederico
- Departamento de Bioquímica; Universidade Federal de Santa Catarina; Centro de Ciências Biológicas; Campus Universitário; Bairro Trindade; Cx. Postal 5069, CEP: 88040-970 Florianópolis SC Brazil
| | - Alessandra Mascarello
- Departamento de Química; Universidade Federal de Santa Catarina; Centro de Ciências Físicas e Matemáticas; Campus Universitário; Bairro Trindade; CEP: 88040-900 Florianópolis SC Brazil
| | - Allisson Jhonatan Gomes Castro
- Departamento de Bioquímica; Universidade Federal de Santa Catarina; Centro de Ciências Biológicas; Campus Universitário; Bairro Trindade; Cx. Postal 5069, CEP: 88040-970 Florianópolis SC Brazil
| | - Gabrielle Da Luz
- Departamento de Bioquímica; Universidade Federal de Santa Catarina; Centro de Ciências Biológicas; Campus Universitário; Bairro Trindade; Cx. Postal 5069, CEP: 88040-970 Florianópolis SC Brazil
| | - Delsi Altenhofen
- Departamento de Bioquímica; Universidade Federal de Santa Catarina; Centro de Ciências Biológicas; Campus Universitário; Bairro Trindade; Cx. Postal 5069, CEP: 88040-970 Florianópolis SC Brazil
| | - Camila Pires Mendes
- Departamento de Bioquímica; Universidade Federal de Santa Catarina; Centro de Ciências Biológicas; Campus Universitário; Bairro Trindade; Cx. Postal 5069, CEP: 88040-970 Florianópolis SC Brazil
| | - Paulo Cesar Leal
- Departamento de Química; Universidade Federal de Santa Catarina; Centro de Ciências Físicas e Matemáticas; Campus Universitário; Bairro Trindade; CEP: 88040-900 Florianópolis SC Brazil
| | - Rosendo Augusto Yunes
- Departamento de Química; Universidade Federal de Santa Catarina; Centro de Ciências Físicas e Matemáticas; Campus Universitário; Bairro Trindade; CEP: 88040-900 Florianópolis SC Brazil
| | - Ricardo José Nunes
- Departamento de Química; Universidade Federal de Santa Catarina; Centro de Ciências Físicas e Matemáticas; Campus Universitário; Bairro Trindade; CEP: 88040-900 Florianópolis SC Brazil
| | - Fátima Regina Mena Barreto Silva
- Departamento de Bioquímica; Universidade Federal de Santa Catarina; Centro de Ciências Biológicas; Campus Universitário; Bairro Trindade; Cx. Postal 5069, CEP: 88040-970 Florianópolis SC Brazil
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Application of Herbal Medicines with Bitter Flavor and Cold Property on Treating Diabetes Mellitus. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 2015:529491. [PMID: 26557150 PMCID: PMC4628671 DOI: 10.1155/2015/529491] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/23/2015] [Revised: 09/19/2015] [Accepted: 09/29/2015] [Indexed: 12/18/2022]
Abstract
Diabetes mellitus has been a global pandemic. Traditional Chinese Medicine has been used on diabetes mellitus for thousands of years and the modern Chinese medicine studies have found a curative effect of herbal medicine with bitter flavor and cold property on diabetes. This review will introduce the theory summary of flavor and property in TCM, argument basis, the evidences from clinical trails and animal experiments, the possible antidiabetic mechanisms, and advantages on lowering glucose of herbal medicines with bitter flavor and cold property and take rhizome, Chinese rhubarb, and Momordica charantia, the three herbal medicines with bitter flavor and cold property, as examples to illustrate the exact antidiabetic effect. It is hoped that this review can provide some ideas and inspiration for the treatment of diabetes with herbal medicine.
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Phytochemical Compounds and Protection from Cardiovascular Diseases: A State of the Art. BIOMED RESEARCH INTERNATIONAL 2015; 2015:918069. [PMID: 26504846 PMCID: PMC4609427 DOI: 10.1155/2015/918069] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Accepted: 06/14/2015] [Indexed: 02/07/2023]
Abstract
Cardiovascular diseases represent a worldwide relevant socioeconomical problem. Cardiovascular disease prevention relies also on lifestyle changes, including dietary habits. The cardioprotective effects of several foods and dietary supplements in both animal models and in humans have been explored. It was found that beneficial effects are mainly dependent on antioxidant and anti-inflammatory properties, also involving modulation of mitochondrial function. Resveratrol is one of the most studied phytochemical compounds and it is provided with several benefits in cardiovascular diseases as well as in other pathological conditions (such as cancer). Other relevant compounds are Brassica oleracea, curcumin, and berberine, and they all exert beneficial effects in several diseases. In the attempt to provide a comprehensive reference tool for both researchers and clinicians, we summarized in the present paper the existing literature on both preclinical and clinical cardioprotective effects of each mentioned phytochemical. We structured the discussion of each compound by analyzing, first, its cellular molecular targets of action, subsequently focusing on results from applications in both ex vivo and in vivo models, finally discussing the relevance of the compound in the context of human diseases.
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Lee AY, Kang MJ, Choe E, Kim JI. Hypoglycemic and antioxidant effects of Daraesoon (Actinidia arguta shoot) in animal models of diabetes mellitus. Nutr Res Pract 2015; 9:262-7. [PMID: 26060538 PMCID: PMC4460058 DOI: 10.4162/nrp.2015.9.3.262] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Revised: 02/11/2015] [Accepted: 03/11/2015] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND/OBJECTIVES The primary objective of the treatment of diabetes mellitus is the attainment of glycemic control. Hyperglycemia increases oxidative stress which contributes to the progression of diabetic complications. Thus, the purpose of this study was to investigate the hypoglycemic and antioxidant effects of Daraesoon (Actinidia arguta shoot) in animal models of diabetes mellitus. MATERIALS/METHODS Rats with streptozotocin-induced diabetes received an oral administration of a starch solution (1 g/kg) either with or without a 70% ethanol extract of Daraesoon (400 mg/kg) or acarbose (40 mg/kg) after an overnight fast and their postprandial blood glucose levels were measured. Five-week-old C57BL/6J mice were fed either a basal or high-fat/high-sucrose (HFHS) diet with or without Daraesoon extract (0.4%) or acarbose (0.04%) for 12 weeks after 1 week of adaptation to determine the effects of the chronic consumption of Daraesoon on fasting hyperglycemia and antioxidant status. RESULTS Compared to the control group, rats that received Daraesoon extract (400 mg/kg) or acarbose (40 mg/kg) exhibited a significant reduction in the area under the postprandial glucose response curve after the oral ingestion of starch. Additionally, the long-term consumption of Daraesoon extract or acarbose significantly decreased serum glucose and insulin levels as well as small intestinal maltase activity in HFHS-fed mice. Furthermore, the consumption of Daraesoon extract significantly reduced thiobarbituric acid reactive substances and increased glutathione levels in the livers of HFHS-fed mice compared to HFHS-fed mice that did not ingest Daraesoon. CONCLUSIONS Daraesoon effectively suppressed postprandial hyperglycemia via the inhibition of α-glucosidase in STZ-induced diabetic rats. Chronic consumption of Daraesoon alleviated fasting hyperglycemia and oxidative stress in mice fed a HFHS diet.
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Affiliation(s)
- Ah-Yeon Lee
- Department of Smart Food and Drugs, School of Food and Life Science, Inje University, 197 Inje-ro, Gimhae, 621-749, Korea
| | - Min-Jung Kang
- Food and Nutrition Research Team, Division of Research and Development, Hurom Co., Ltd., 158 Golden root-ro, Gimhae, Gyungnam, 621-844, Korea
| | - Eunok Choe
- Department of Food and Nutrition, Inha University, 100 Inha-ro, Incheon, 402-823, Korea
| | - Jung-In Kim
- Department of Smart Food and Drugs, School of Food and Life Science, Inje University, 197 Inje-ro, Gimhae, 621-749, Korea
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Pang B, Zhao LH, Zhou Q, Zhao TY, Wang H, Gu CJ, Tong XL. Application of berberine on treating type 2 diabetes mellitus. Int J Endocrinol 2015; 2015:905749. [PMID: 25861268 PMCID: PMC4377488 DOI: 10.1155/2015/905749] [Citation(s) in RCA: 144] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2014] [Accepted: 02/24/2015] [Indexed: 12/22/2022] Open
Abstract
Traditional Chinese medicine (TCM) performs a good clinical practice and is showing a bright future in the treatment of diabetes mellitus (DM). TCM treatment has certain advantages of less toxicity and/or side effects, and herbs could provide multiple therapeutic effects. Berberine (BBR) is a classical natural medicine. In this review, we summarize the application of BBR in the treatment of DM from two aspects. First, modern pharmacological effects of BBR on glucose metabolism are summarized, such as improving insulin resistance, promoting insulin secretion, inhibiting gluconeogenesis in liver, stimulating glycolysis in peripheral tissue cells, modulating gut microbiota, reducing intestinal absorption of glucose, and regulating lipid metabolism. BBR is used to treat diabetic nephropathy (DPN), diabetic neuropathy (DN), and diabetic cardiomyopathy due to its antioxidant and anti-inflammatory activities. Second, the clinical application of BBR is reviewed, such as listing some clinical trials on the effectiveness and safety of BBR, explaining applicable stage and syndrome, the reasonable dose and dose formulation, and the toxicity and/or side effects. This review provides scientific evidence about BBR, as well as introducing some traditional Chinese medical theory and clinical experience, in order to guide clinician to use BBR more suitably and reasonably.
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Affiliation(s)
- Bing Pang
- Department of Endocrinology, Guang'anmen Hospital of China, Academy of Chinese Medical Sciences, Beijing 100054, China
| | - Lin-Hua Zhao
- Laboratory of Molecular and Biology, Guang'anmen Hospital of China Academy of Chinese Medical Sciences, Beijing 100054, China
| | - Qiang Zhou
- Department of Digestion, Beijing Hospital of Traditional Chinese Medicine, Capital University of Medicine Sciences, Beijing 100010, China
| | - Tian-Yu Zhao
- Department of Endocrinology, Guang'anmen Hospital of China, Academy of Chinese Medical Sciences, Beijing 100054, China
| | - Han Wang
- Department of Endocrinology, Guang'anmen Hospital of China, Academy of Chinese Medical Sciences, Beijing 100054, China
| | - Cheng-Juan Gu
- Department of Endocrinology, Guang'anmen Hospital of China, Academy of Chinese Medical Sciences, Beijing 100054, China
| | - Xiao-Lin Tong
- Department of Endocrinology, Guang'anmen Hospital of China, Academy of Chinese Medical Sciences, Beijing 100054, China
- *Xiao-Lin Tong:
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Chen C, Yu Z, Li Y, Fichna J, Storr M. Effects of berberine in the gastrointestinal tract - a review of actions and therapeutic implications. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2014; 42:1053-70. [PMID: 25183302 DOI: 10.1142/s0192415x14500669] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Berberine is an isoquinoline alkaloid present in several plant species, including Coptis sp. and Berberis sp. In traditional medicine, extracts of berberine are used in the treatment of diarrhea of different origins. Recent studies have shown that berberine and its derivatives have significant biological effects on gastrointestinal (GI) and other functions and may become therapeutics for the treatment of diarrhea, gastroenteritis, diabetes, hyperlipidemia, cardiovascular diseases and inflammatory conditions. This paper summarizes the current knowledge on the actions of berberine in the GI tract. Binding and target sites, activated intracellular pathways, as well as the absorption and metabolism of berberine are discussed. Effects that may be useful in future clinical treatment, like antidiarrheal, anti-inflammatory and antitumor effects are critically reviewed and potential clinical applications are presented in detail.
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Affiliation(s)
- Chunqiu Chen
- Department of General Surgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
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The antihyperglycemic effects of Rhizoma Coptidis and mechanism of actions: a review of systematic reviews and pharmacological research. BIOMED RESEARCH INTERNATIONAL 2014; 2014:798093. [PMID: 24818152 PMCID: PMC4003828 DOI: 10.1155/2014/798093] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/10/2014] [Revised: 03/10/2014] [Accepted: 03/18/2014] [Indexed: 01/30/2023]
Abstract
Rhizoma Coptidis (Huang Lian in Chinese pinyin) is among the most widely used traditional Chinese herbal medicines and has a profound history of more than 2000 years of being used as a therapeutic herb. The antidiabetic effects of Rhizoma Coptidis have been extensively investigated in animal experiments and clinical trials and its efficacy as a promising antihyperglycemic agent has been widely discussed. In the meantime, findings from modern pharmacological studies have contributed the majority of its bioactivities to berberine, the isoquinoline alkaloids component of the herb, and a number of experiments testing the antidiabetic effects of berberine have been initiated. Therefore, we conducted a review of the current evidence profile of the antihyperglycemic effects of Rhizoma Coptidis as well as its main component berberine and the possible mechanism of actions, in order to summarize research evidence in this area and identify future research directions.
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Wei SC, Dong S, Xu LJ, Zhang CY. Intestinal absorption of berberine and 8-hydroxy dihydroberberine and their effects on sugar absorption in rat small intestine. ACTA ACUST UNITED AC 2014; 34:186-189. [DOI: 10.1007/s11596-014-1256-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2013] [Revised: 02/25/2014] [Indexed: 10/25/2022]
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Protection of long-term treatment with huang-lian-jie-du-tang on vascular endothelium in rats with type 2 diabetes mellitus. Curr Ther Res Clin Exp 2014; 73:174-85. [PMID: 24653519 DOI: 10.1016/j.curtheres.2012.09.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/13/2012] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Huang-Lian-Jie-Du-Tang (HLJDT) is the classical traditional Chinese recipe for heat clearance and detoxification and is used in diabetic patients in the clinical practice of traditional Chinese medicine. OBJECTIVE The aim of this study was to evaluate the protective effects of long-term treatment with HLJDT on vascular endothelial function in rats with type 2 diabetes mellitus (T2DM). METHODS The male T2DM model rats were induced by intraperitoneal injection of low-dose streptozotocin plus a high-fat and high-calorie laboratory diet. The T2DM animals were randomly divided into the T2DM model group, the low-dose HLJDT group (0.42 g/kg/d), and the high-dose HLJDT group (1.25 g/kg/d). RESULTS Administration of HLJDT (0.42 or 1.25 g/kg/d) for 8 weeks decreased the levels of serum fasting blood glucose, malondialdehyde, and vascular tissue interleukin 6 but raised the level of serum superoxide dismutase compared with the T2DM model group in a dose-dependent manner. In addition, HLJDT treatment restored the impaired endothelial-dependent vascular relaxation in aortic preparations from the T2DM model group in a dose-dependent manner. CONCLUSIONS Early and long-term treatments with HLJDT could have anti-inflammatory, antioxidant properties and could protect vascular endothelium from the cardiovascular complications associated with T2DM.
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Lee JS, Choi MS, Seo KI, Lee J, Lee HI, Lee JH, Kim MJ, Lee MK. Platycodi radix saponin inhibits α-glucosidase in vitro and modulates hepatic glucose-regulating enzyme activities in C57BL/KsJ-db/db mice. Arch Pharm Res 2013; 37:773-82. [PMID: 24105419 DOI: 10.1007/s12272-013-0259-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2013] [Accepted: 09/28/2013] [Indexed: 12/20/2022]
Abstract
This study investigated anti-diabetic activity of a concentrated saponin fraction from Platycodi radix (SK1) in C57BL/KsJ-db/db mice and its underlying mechanism. Mice were fed diet with 0.5 % SK1 (w/w) for 6 weeks. SK1 significantly lowered the blood glucose and glycosylated hemoglobin levels and improved glucose and insulin tolerance. The plasma and pancreatic insulin and C-peptide levels and fecal cholesterol content were increased, whereas plasma urea nitrogen, free fatty acid and triglyceride levels were decreased by SK1 supplementation. Glucokinase (GK) activity in the liver was significantly higher in the SK1 group than the control group, whereas the glucose-6-phosphatase (G6Pase) activity was lower. SK1 significantly down-regulated GK mRNA expression compared to the control group but did not affect G6Pase and glucose transporter 2 mRNA. Phosphoenolpyruvate carboxykinase activity and mRNA levels did not differ between groups. SK1 also markedly inhibited the small intestinal disaccharidases activities compared to those of control db/db mice. Furthermore, SK1 was a more effective α-glucosidase inhibitor than acarbose in vitro. Overall, these findings suggest that SK1 is a potential glucose-lowering agent that functions via inhibition of carbohydrate digestive enzyme activities and modulation of glucose-regulating enzyme activities in db/db mice.
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Affiliation(s)
- Jeom-Sook Lee
- Department of Food and Nutrition, Sunchon National University, 255 Jungang-ro, Suncheon, Jeonnam, 540-950, Korea
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Zhao H, Halicka HD, Li J, Darzynkiewicz Z. Berberine suppresses gero-conversion from cell cycle arrest to senescence. Aging (Albany NY) 2013; 5:623-36. [PMID: 23974852 PMCID: PMC3796215 DOI: 10.18632/aging.100593] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2013] [Accepted: 08/20/2013] [Indexed: 01/05/2023]
Abstract
Berberine (BRB), a natural alkaloid, has a long history of medicinal use in both Ayurvedic and old Chinese medicine. Recently, available as a dietary supplement, Berberine is reported to have application in treatment of variety diseases. Previously we observed that BRB inhibited mTOR/S6 signaling concurrently with reduction of the level of endogenous oxidants and constitutive DNA damage response. We currently tested whether Berberine can affect premature, stress-induced cellular senescence caused by mitoxantrone. The depth of senescence was quantitatively measured by morphometric parameters, senescence-associated β-galactosidase, induction of p21WAF1, replication stress (γH2AX expression), and mTOR signaling; the latter revealed by ribosomal S6 protein (rpS6) phosphorylation. All these markers of senescence were distinctly diminished, in a concentration-dependent manner, by Berberine. In view of the evidence that BRB localizes in mitochondria, inhibits respiratory electron chain and activates AMPK, the observed attenuation of the replication stress-induced cellular senescence most likely is mediated by AMPK that leads to inhibition of mTOR signaling. In support of this mechanism is the observation that rhodamine123, the cationic probe targeting mitochondrial electron chain, also suppressed rpS6 phosphorylation. The present findings reveal that: (a) in cells induced to senescence BRB exhibits gero-suppressive properties by means of mTOR/S6 inhibition; (b) in parallel, BRB reduces the level of constitutive DNA damage response, previously shown to report oxidative DNA damage by endogenous ROS; (c) there appears to a causal linkage between the (a) and (b) activities; (d) the in vitro model of premature stress-induced senescence can be used to assess effectiveness of potential gero-suppressive agents targeting mTOR/S6 and ROS signaling; (e) since most of the reported beneficial effects of BRB are in age-relate diseases, it is likely that gero-suppression is the primary activity of this traditional medicine.
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Affiliation(s)
- Hong Zhao
- Brander Cancer Research Institute and Department of Pathology, New York Medical College, Valhalla, NY 10595, USA
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Pérez-Rubio KG, González-Ortiz M, Martínez-Abundis E, Robles-Cervantes JA, Espinel-Bermúdez MC. Effect of berberine administration on metabolic syndrome, insulin sensitivity, and insulin secretion. Metab Syndr Relat Disord 2013; 11:366-9. [PMID: 23808999 DOI: 10.1089/met.2012.0183] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND The aim of this study was to evaluate the effect of berberine administration on metabolic syndrome, insulin sensitivity, and insulin secretion. METHODS A randomized, double-blind, placebo-controlled clinical trial was carried out in 24 patients with a diagnosis of metabolic syndrome. Glucose and insulin levels after a dextrose load were measured. Triglycerides and high-density lipoprotein cholesterol concentrations at baseline were also measured. Twelve patients received berberine hydrochloride (500 mg) three times daily before meals for 3 months. The remaining 12 patients received placebo. Area under the curve (AUC) of glucose and insulin, total insulin secretion, first-phase of insulin secretion, and insulin sensitivity were assessed. RESULTS After berberine administration, patients had a remission of 36% (P=0.037) in the presence of metabolic syndrome and a significant decrease in waist circumference in females (106±4 vs. 103±3 cm, P<0.05), systolic blood pressure (SBP) (123±7 vs. 115±9 mmHg, P<0.01), triglycerides (2.4±0.7 vs. 1.4±0.5 mmol/L, P<0.01), area under the curve (AUC) of glucose (1182.1±253.6 vs. 1069.5±172.4 mmol/l, P<0.05), AUC of insulin (92,056±72,148 vs. 67,407±46,441 pmol/L, P<0.01), and insulinogenic index (0.78±0.69 vs. 0.62±0.46, P<0.05), as well as an increase in the Matsuda index (2.1±1.0 vs. 3.1±1.6, P<0.01). CONCLUSIONS Administration of berberine leads to remission of metabolic syndrome and decreases in waist circumference, SBP, triglycerides, and total insulin secretion, with an increase in insulin sensitivity.
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Affiliation(s)
- Karina G Pérez-Rubio
- 1 Cardiovascular Research Unit, Physiology Department, Health Science University Center, University of Guadalajara , Guadalajara, Mexico
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Derosa G, D'Angelo A, Bonaventura A, Bianchi L, Romano D, Maffioli P. Effects of berberine on lipid profile in subjects with low cardiovascular risk. Expert Opin Biol Ther 2013; 13:475-82. [PMID: 23441841 DOI: 10.1517/14712598.2013.776037] [Citation(s) in RCA: 70] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To evaluate the efficacy as antihypercholesterolemic agent of berberine in patients with low cardiovascular risk. RESEARCH DESIGN AND METHODS 144 Caucasian subjects were enrolled. After a 6-month run-in period following diet and practicing physical activity, patients were randomized to take placebo or berberine 500 mg twice a day, for 3 months, in a double-blind, placebo-controlled design. Berberine and placebo were then interrupted for 2 months (washout period), and all patients continued with only diet and physical activity. At the end of the washout period, patients restarted berberine or placebo twice a day for further 3 months. Anthropometric and metabolic parameters were assessed during the run-in period, at randomization, before and after the washout period. RESULTS A decrease of body weight and BMI was observed after the run-in period. Berberine reduced total cholesterol, triglycerides and LDL cholesterol and increased HDL cholesterol after 3 months from randomization and compared with placebo. After the washout period, lipid profile worsened; afterward, when berberine was reintroduced, lipid profile improved again both compared with the washout period, and with placebo. CONCLUSIONS Berberine is effective and safe to mildly improve lipid profile in subjects with low risk for cardiovascular disease.
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Affiliation(s)
- Giuseppe Derosa
- University of Pavia, Department of Internal Medicine and Therapeutics, Fondazione IRCCS Policlinico S. Matteo, P.le C. Golgi, 2 - 27100 Pavia, Italy.
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Deng YX, Zhang XJ, Shi QZ, Chen YS, Qiu XM, Chen B. Anti-hyperglycemic effects and mechanism of traditional Chinese medicine Huanglian Wan in streptozocin-induced diabetic rats. JOURNAL OF ETHNOPHARMACOLOGY 2012; 144:425-432. [PMID: 23036812 DOI: 10.1016/j.jep.2012.09.039] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2012] [Revised: 09/21/2012] [Accepted: 09/25/2012] [Indexed: 06/01/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Huanglian Wan (HLW) is a prescription of traditional Chinese medicine (TCM), which has been used to treat diabetes mellitus for thousands of years in China. In this study we provide experimental evidence for the clinical use of HLW in the treatment of diabetes mellitus. MATERIALS AND METHODS HLW extract was prepared and the main components (namely berberine and catalpol) contained in the extract were assayed with high performance liquid chromatography (HPLC), and diabetic model rats were induced by intraperitoneal injection of streptozotocin (STZ). After grouped randomly, diabetic rats were administered low or high dose of HLW extract, acarbose and vehicle for 33 days, respectively. Body weight, food intake, urine volume, urine sugars, fasting plasma glucose and fasting plasma insulin were monitored to evaluate its antidiabetic effects in diabetic rats. Intestinal mucosa homogenate was prepared and the activities of intestinal disaccharidases were assayed. Moreover, oral sucrose tolerance test (OSTT) was performed and the inhibitory effect of HLW extract on the maltase and sucrase in vitro was evaluated. RESULTS After the treatment of HLW extract, the body weight and the fasting plasma insulin level were found to be increased while food intake, urine volume, urine sugars and fasting plasma were decreased. OSTT showed that HLW extract could lower the postprandial plasma glucose level of diabetic rats. Furthermore, HLW extract could inhibit the activities of sucrase and maltase in vitro. CONCLUSIONS According to our present findings, the TCM prescription HLW possessed potent anti-hyperglycemic effect on STZ-induced diabetic rats. And HLW extract exerted anti-hyperglycemic effect partly via inhibiting the increased activities of intestinal disaccharidases and elevating the level of plasma insulin in diabetic rats induced by streptozotocin.
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Affiliation(s)
- Yuan-xiong Deng
- Department of Pharmaceutical Science, Medical College of Hunan Normal University, Changsha, PR China.
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Chen XW, Di YM, Zhang J, Zhou ZW, Li CG, Zhou SF. Interaction of herbal compounds with biological targets: a case study with berberine. ScientificWorldJournal 2012; 2012:708292. [PMID: 23213296 PMCID: PMC3504405 DOI: 10.1100/2012/708292] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2012] [Accepted: 07/08/2012] [Indexed: 02/06/2023] Open
Abstract
Berberine is one of the main alkaloids found in the Chinese herb Huang lian (Rhizoma Coptidis), which has been reported to have multiple pharmacological activities. This study aimed to analyze the molecular targets of berberine based on literature data followed by a pathway analysis using the PANTHER program. PANTHER analysis of berberine targets showed that the most classes of molecular functions include receptor binding, kinase activity, protein binding, transcription activity, DNA binding, and kinase regulator activity. Based on the biological process classification of in vitro berberine targets, those targets related to signal transduction, intracellular signalling cascade, cell surface receptor-linked signal transduction, cell motion, cell cycle control, immunity system process, and protein metabolic process are most frequently involved. In addition, berberine was found to interact with a mixture of biological pathways, such as Alzheimer's disease-presenilin and -secretase pathways, angiogenesis, apoptosis signalling pathway, FAS signalling pathway, Hungtington disease, inflammation mediated by chemokine and cytokine signalling pathways, interleukin signalling pathway, and p53 pathways. We also explored the possible mechanism of action for the anti-diabetic effect of berberine. Further studies are warranted to elucidate the mechanisms of action of berberine using systems biology approach.
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Affiliation(s)
- Xiao-Wu Chen
- Department of General Surgery, The First People's Hospital of Shunde, Southern Medical University, Shunde, Guangdong 528300, China
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Derosa G, Maffioli P, Cicero AFG. Berberine on metabolic and cardiovascular risk factors: an analysis from preclinical evidences to clinical trials. Expert Opin Biol Ther 2012; 12:1113-24. [PMID: 22780092 DOI: 10.1517/14712598.2012.704014] [Citation(s) in RCA: 125] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
INTRODUCTION Type 2 diabetes mellitus and hypercholesterolemia have proven to give an increased incidence of cardiovascular diseases (CVD). Recent studies have suggested that the natural alkaloid berberine could have pharmacological activities potentially useful in diabetes and hypercholesterolemia management. AREAS COVERED The aim of this review is to evaluate the metabolic properties of the natural alkaloid berberine, and its potential application to the treatment of diabetes and CVD prevention. EXPERT OPINION Berberine proved to be effective in improving glycemic control and lipid profile. The modern investigation on berberine pharmacological activity is actually developing and numerous scientific evidences are actually in progress and reported in international congresses. The near future perspective is the isolation or neo-synthesis of berberine analogs with a higher bioavailability. The anti-hyperlipidemic and anti-diabetic effects of berberine have to be related to markers of improvement in organ damage in humans; longer trials are needed to better evaluate the safety profile of the molecule, when administered alone or in association with other anti-hyperlipidemic or anti-diabetic drugs, especially in the European population.
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Affiliation(s)
- Giuseppe Derosa
- University of Pavia, Department of Internal Medicine and Therapeutics, Fondazione IRCCS Policlinico S. Matteo, P.le C. Golgi, 2-27100 Pavia, Italy.
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Li ZQ, Zuo DY, Qie XD, Qi H, Zhao MQ, Wu YL. Berberine acutely inhibits the digestion of maltose in the intestine. JOURNAL OF ETHNOPHARMACOLOGY 2012; 142:474-480. [PMID: 22626925 DOI: 10.1016/j.jep.2012.05.022] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2011] [Revised: 05/08/2012] [Accepted: 05/13/2012] [Indexed: 06/01/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The Chinese Goldthread Rhizome has been used in the Traditional Chinese Medicine as an important ingredient of many formulas for the treatment of diabetes mellitus. Berberine, the main effective composition of Chinese Goldthread Rhizome, is also effective in treating diabetes in today's clinical practice of Traditional Chinese Medicine. AIM OF THE STUDY To evaluate the hypoglycemic activity of berberine which treats acutely on the postprandial blood glucose, and to explore the mechanism of this activity. MATERIALS AND METHODS 1. One-dose preprandial intragastric administrations of berberine were given to normal animals (dogs and rats), and the postprandial blood glucose concentration curves were measured. Serum insulin enzyme linked immunosorbent assay (ELISA) was only performed in rats. 2. The euglycemic clamp test was performed to evaluate the effect of one-dose berberine intragastric administration on the blood glucose transformation and utilization rate in rats. 3. In the Caco-2 cell monolayer test, the changes of glucose concentration on the apical and basolateral sides were measured when the maltose solution containing berberine was added to the apical side. 4. The inhibition ratio of berberine against α-glucosidase was measured in vitro. 5. The effect of berberine on the fluorescence emission spectrums of α-glucosidase was studied. RESULTS One-dose preprandial intragastric administration of berberine delayed the rise of post-maltose blood glucose, did not affect postprandial blood glucose after glucose meal, and did not affect the insulin level in normal rats; reduced post-maltose blood glucose in normal dogs. 2. The result of euglycemic clamp test showed that one-dose intragastric administration of berberine had no effect on the blood glucose transformation and utilization rate in rats. 3. Berberine added to the maltose solution on the apical side of Caco-2 cell monolayer reduced the glucose concentration on the apical side. Glucose in basolateral side of all groups cannot be detected. 4. Berberine inhibited the activity of α-glucosidase in vitro. 5. Berberine significantly and concentration dependently quenched the fluorescence emission spectrum of α-glucosidase. CONCLUSION Our findings suggest an additional mechanism of the hypoglycemic activity of berberine by demonstrating its ability to acutely inhibit the α-glucosidase, and support the traditional use of berberine and Chinese Goldthread Rhizome for the treatment of diabetes mellitus.
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Affiliation(s)
- Zeng-Qiang Li
- Shenyang Pharmaceutical University, Department of Pharmacology, Wenhua Road, No. 103, Shenyang 110016, China
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Cicero AFG, Tartagni E. Antidiabetic properties of berberine: from cellular pharmacology to clinical effects. Hosp Pract (1995) 2012; 40:56-63. [PMID: 22615079 DOI: 10.3810/hp.2012.04.970] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Berberine is an alkaloid that is highly concentrated in the roots, rhizomes, and stem bark of various plants. It affects glucose metabolism, increasing insulin secretion, stimulating glycolysis, suppressing adipogenesis, inhibiting mitochondrial function, activating the 5' adenosine monophosphate-activated protein kinase (AMPK) pathway, and increasing glycokinase activity. Berberine also increases glucose transporter-4 (GLUT-4) and glucagon-like peptide-1 (GLP-1) levels. On GLP-1 receptor activation, adenylyl cyclase is activated, and cyclic adenosine monophosphate is generated, leading to activation of second messenger pathways and closure of adenosine triphosphate-dependent potassium channels. Increased intracellular potassium causes depolarization, and calcium influx through the voltage-dependent calcium channels occurs. This intracellular calcium increase stimulates the migration and exocytosis of the insulin granules. In glucose-consuming tissues, such as adipose, or liver or muscle cells, berberine affects both GLUT-4 and retinol-binding protein-4 in favor of glucose uptake into cells; stimulates glycolysis by AMPK activation; and has effects on the peroxisome proliferator-activated receptor γ molecular targets and on the phosphorylation of insulin receptor substrate-1, finally resulting in decreased insulin resistance. Moreover, recent studies suggest that berberine could have a direct action on carbohydrate metabolism in the intestine. The antidiabetic and insulin-sensitizing effect of berberine has also been confirmed in a few relatively small, short-term clinical trials. The tolerability is high for low dosages, with some gastrointestinal complaints appearing to be associated with use of high dosages.
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Affiliation(s)
- Arrigo F G Cicero
- Internal Medicine, Aging and Kidney Diseases Department, University of Bologna, Bologna, Italy.
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Di Pierro F, Villanova N, Agostini F, Marzocchi R, Soverini V, Marchesini G. Pilot study on the additive effects of berberine and oral type 2 diabetes agents for patients with suboptimal glycemic control. Diabetes Metab Syndr Obes 2012; 5:213-7. [PMID: 22924000 PMCID: PMC3422905 DOI: 10.2147/dmso.s33718] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Suboptimal glycemic control is a common situation in diabetes, regardless of the wide range of drugs available to reach glycemic targets. Basic research in diabetes is endeavoring to identify new actives working as insulin savers, use of which could delay the introduction of injectable insulin or reduce the insulin dose needed. Commonly available as a nutraceutical, berberine is a potential candidate. METHODS AND RESULTS Because its low oral bioavailability can be overcome by P-glycoprotein inhibitors like herbal polyphenols, we have tested the nutraceutical combination of Berberis aristata extract and Silybum marianum extract (Berberol(®)) in type 2 diabetes in terms of its additive effect when combined with a conventional oral regimen for patients with suboptimal glycemic control. After 90 days of treatment, the nutraceutical association had a positive effect on glycemic and lipid parameters, significantly reducing glycosylated hemoglobin, basal insulin, homeostatic model assessment of insulin resistance, total and low-density lipoprotein cholesterol, and triglycerides. A relevant effect was also observed in terms of liver function by measuring aspartate transaminase and alanine transaminase. The product had a good safety profile, with distinctive gastrointestinal side effects likely due to its acarbose-like action. CONCLUSION Although further studies should be carried out to confirm our data, Berberol could be considered a good candidate as an adjunctive treatment option in diabetes, especially in patients with suboptimal glycemic control.
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Affiliation(s)
- Francesco Di Pierro
- Scientific Department, Velleja Research, Milano
- Correspondence: Francesco Di Pierro, Velleja Research, Viale Lunigiana 23, Milano 20125, Italy, Tel +39 34 9552 7663, Fax +39 05 2351 1894, Email
| | - Nicola Villanova
- Diseases of Metabolism, S Orsola Malpighi Hospital, Bologna, Italy
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Liu L, Yu YL, Liu C, Wang XT, Liu XD, Xie L. Insulin deficiency induces abnormal increase in intestinal disaccharidase activities and expression under diabetic states, evidences from in vivo and in vitro study. Biochem Pharmacol 2011; 82:1963-70. [DOI: 10.1016/j.bcp.2011.09.014] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2011] [Revised: 09/10/2011] [Accepted: 09/12/2011] [Indexed: 01/06/2023]
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Han J, Lin H, Huang W. Modulating gut microbiota as an anti-diabetic mechanism of berberine. Med Sci Monit 2011; 17:RA164-7. [PMID: 21709646 PMCID: PMC3539561 DOI: 10.12659/msm.881842] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Berberine, one of the main constituents of a Chinese traditional herb used to treat bacterial diarrhea, has an effect of lowering glucose, which has been recently confirmed by many studies. However, the mechanism of berberine's antidiabetic effect has not yet been well explained. Recent evidence suggests that the gut microbiota composition is associated with obesity and type 2 diabetes, which are closely associated with a low-grade inflammatory state. The protective effect against diabetes of gut microbiota modulation with probiotics or antibiotics has been confirmed in recent observations. Berberine has significant antimicrobial activity against several microbes through inhibiting the assembly function of FtsZ and halting the bacteria cell division. Because berberine acts topically in the gastrointestinal tract and it is poorly absorbed, berberine might modulate gut microbiota without systemic anti-infective activity. Our hypothesis is that gut microbiota modulation may be one mechanism of the antidiabetic effect of berberine. Our hypothesis may provide a novel explanation for berberine's therapeutic effect in patients with diabetes mellitus.
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Affiliation(s)
- Junling Han
- Department of Endocrinology and Metabolism, 187th Hospital of PLA, Haikou, China.
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Kim JH, Kang MJ, Choi HN, Jeong SM, Lee YM, Kim JI. Quercetin attenuates fasting and postprandial hyperglycemia in animal models of diabetes mellitus. Nutr Res Pract 2011; 5:107-11. [PMID: 21556223 PMCID: PMC3085798 DOI: 10.4162/nrp.2011.5.2.107] [Citation(s) in RCA: 111] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2011] [Revised: 02/11/2011] [Accepted: 02/14/2011] [Indexed: 11/29/2022] Open
Abstract
The objective of this study was to investigate the hypoglycemic effects of quercetin (QE) in animal models of diabetes mellitus (DM). A starch solution (1 g/kg) with and without QE (100 mg/kg) or acarbose (40 mg/kg) was orally administered to streptozotocin (STZ)-induced diabetic rats after an overnight fast. Postprandial plasma glucose levels were measured and incremental areas under the response curve were calculated. To study the effects of chronic feeding of QE, five-week-old db/db mice were fed an AIN-93G diet, a diet containing QE at 0.08%, or a diet containing acarbose at 0.03% for 7 weeks after 1 week of adaptation. Plasma glucose and insulin, blood glycated hemoglobin, and maltase activity of the small intestine were measured. Oral administration of QE (100 mg/kg) or acarbose (40 mg/kg) to STZ-treated rats significantly decreased incremental plasma glucose levels 30-180 min after a single oral dose of starch and the area under the postprandial glucose response, compared with the control group. QE (0.08% of diet) or acarbose (0.03% of diet) offered to db/db mice significantly reduced both plasma glucose and blood glycated hemoglobin compared to controls without significant influence on plasma insulin. Small intestine maltase activities were significantly reduced by consumption of QE or acarbose. Thus, QE could be effective in controlling fasting and postprandial blood glucose levels in animal models of DM.
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Affiliation(s)
- Ji-Hye Kim
- Department of Smart Foods and Drugs, School of Food and Life Science, Inje University, 607 Obang-dong, Gimhae, Gyungnam 621-749, Korea
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Abstract
Diabetes is usually associated with inflammation. Inflammation contributes to the development of diabetes. Traditional Chinese medicines (TCM) play an important role in lowering blood glucose and controlling inflammation. Many studies show that TCM with hypoglycaemic effects, for example Radix Astragali, Radix Rehmanniae, Radix Trichosanthis, Panax Ginseng, Fructus Schisandrae, Radix Ophiopogonis, Rhizoma Anemarrhenae, Radix Puerariae, Fructus Lycii, Poria, Rhizoma Coptidis, Rhizoma Dioscoreae, Rhizoma Polygonati, Radix Salviae Miltiorrhizae, Radix Glycyrrhizae, Semen Trigonellae, Momordica charantia, Allium sativum, Opuntia stricta, Aloe vera, Cortex Cinnamomi, Rhizoma Curcumae Longae, and so on, have nearly independent anti-inflammatory action. Antihyperglycaemic compounds, for example berberine, puerarin, quercetin, ferulic acid, astragaloside IV, curcumin, epigallocatechin gallate, resveratrol, tetrandrine, glycyrrhizin, emodin and baicalin, used in TCM also have anti-inflammatory effects. These studies suggest that TCM might exert hypoglycaemic effects that are partly mediated by the anti-inflammatory mechanisms. However, small amounts of TCM with potent anti-inflammatory action does not have any hypoglycaemic effect. This indirectly indicates that diabetes may be a low-grade inflammatory disease and potent regulation of inflammatory mediators may not be required. Studies of TCM add new evidences, which indicate that diabetes may be an inflammatory disease and slight or moderate inhibition of inflammation might be useful to prevent the development of diabetes. Through this review, we aim to develop more perspectives to indicate that diabetes may be an inflammatory disease and diverse TCM may share a common antidiabetic property: anti-inflammatory action. Further studies should focus on and validate inflammation-regulating targets of TCM that may be involved in inhibiting the development of diabetes.
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Affiliation(s)
- W Xie
- Life Science Division, Graduate School at Shenzhen, Tsinghua University, Shenzhen, China
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Traditional chinese medicines in treatment of patients with type 2 diabetes mellitus. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2011; 2011:726723. [PMID: 21584252 PMCID: PMC3092648 DOI: 10.1155/2011/726723] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2010] [Revised: 12/16/2010] [Accepted: 01/19/2011] [Indexed: 02/02/2023]
Abstract
Type 2 diabetes mellitus (T2DM) occurs in 95% of the diabetic populations. Management of T2DM is a challenge. Traditional Chinese medicines (TCM) are usually served as adjuvants used to improve diabetic syndromes in combination of routine antidiabetic drugs. For single-herb prescriptions, Ginseng, Bitter melon, Golden Thread, Fenugreek, Garlic, and Cinnamon might have antidiabetic effects in T2DM patients. Among 30 antidiabetic formulas approved by the State Food and Drugs Administrator of China, top 10 of the most frequently prescribed herbs are Membranous Milkvetch Root, Rehmannia Root, Mongolian Snakegourd Root, Ginseng, Chinese Magnoliavine Fruit, Kudzuvine Root, Dwarf Lilyturf Tuber, Common Anemarrhena Rhizome, Barbary Wolfberry Fruit, and India Bread, which mainly guided by the theory of TCM. Their action mechanisms are related to improve insulin sensitivity, stimulate insulin secretion, protect pancreatic islets, and even inhibit intake of intestinal carbohydrates. However, it is very difficult to determine antihyperglycemic components of TCM. Nevertheless, TCM are becoming popular complementary and alternative medicine in treatment of syndromes of T2DM. In the future, it requires further validation of phytochemical, pharmacological, and clinical natures of TCM in T2DM in the future studies, especially for those herbs with a high prescription frequency.
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