1
|
Nechchadi H, Nadir Y, Benhssaine K, Alem C, Sellam K, Boulbaroud S, Berrougui H, Ramchoun M. Hypolipidemic activity of phytochemical combinations: A mechanistic review of preclinical and clinical studies. Food Chem 2024; 459:140264. [PMID: 39068825 DOI: 10.1016/j.foodchem.2024.140264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2024] [Revised: 06/10/2024] [Accepted: 06/26/2024] [Indexed: 07/30/2024]
Abstract
Hyperlipidemia, a condition characterized by elevated levels of lipids in the blood, poses a significant risk factor for various health disorders, notably cardiovascular diseases. Phytochemical compounds are promising alternatives to the current lipid-lowering drugs, which cause many undesirable effects. Based on in vivo and clinical studies, combining phytochemicals with other phytochemicals, prebiotics, and probiotics and their encapsulation in nanoparticles is more safe and effective for managing hyperlipidemia than monotherapy. To this end, the results obtained and the mechanisms of action of these combinations were examined in detail in this review.
Collapse
Affiliation(s)
- Habiba Nechchadi
- Department of Biology, Polydisciplinary Faculty, University Sultan Moulay Slimane, 23000 Beni Mellal, Morocco.
| | - Youssef Nadir
- Laboratory of Biological Engineering, Faculty of Sciences and Techniques, University Sultan Moulay Slimane, 23000 Beni Mellal, Morocco
| | - Khalid Benhssaine
- Department of Biology, Polydisciplinary Faculty, University Sultan Moulay Slimane, 23000 Beni Mellal, Morocco
| | - Chakib Alem
- Biochemistry of Natural Products Team, Faculty of Sciences and Techniques, Moulay Ismail University, 52000 Errachidia, Morocco
| | - Khalid Sellam
- Biology, Environment and Health Team, Faculty of sciences and Techniques, Moulay Ismail University, 52000 Errachidia, Morocco
| | - Samira Boulbaroud
- Department of Biology, Polydisciplinary Faculty, University Sultan Moulay Slimane, 23000 Beni Mellal, Morocco
| | - Hicham Berrougui
- Department of Biology, Polydisciplinary Faculty, University Sultan Moulay Slimane, 23000 Beni Mellal, Morocco
| | - Mhamed Ramchoun
- Department of Biology, Polydisciplinary Faculty, University Sultan Moulay Slimane, 23000 Beni Mellal, Morocco
| |
Collapse
|
2
|
Waiz M, Alvi SS, Khan MS. Potential dual inhibitors of PCSK-9 and HMG-R from natural sources in cardiovascular risk management. EXCLI JOURNAL 2022; 21:47-76. [PMID: 35221836 PMCID: PMC8859648 DOI: 10.17179/excli2021-4453] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 12/08/2021] [Indexed: 12/11/2022]
Abstract
Atherosclerotic cardiovascular disease (ASCVD) stands amongst the leading causes of mortality worldwide and has attracted the attention of world's leading pharmaceutical companies in order to tackle such mortalities. The low-density lipoprotein-cholesterol (LDL-C) is considered the most prominent biomarker for the assessment of ASCVD risk. Distinct inhibitors of 3-hydroxy-3-methyl-glutaryl-CoA reductase (HMG-R), the chief hepatic cholesterogenic enzyme, are being used since last seven decades to manage hypercholesterolemia. On the other hand, discovery and the association of proprotein convertase subtilisin/kexin type-9 (PCSK-9) with increased ASCVD risk have established PCSK-9 as a novel therapeutic target in cardiovascular medicine. PCSK-9 is well reckoned to facilitate the LDL-receptor (LDL-R) degradation and compromised LDL-C clearance leading to the arterial atherosclerotic plaque formation. The currently available HMG-R inhibitors (statins) and PCSK-9 inhibitors (siRNA, anti-sense oligonucleotides, and monoclonal antibodies) have shown great promises in achieving LDL-C lowering goals, however, their life long prescriptions have raised significant concerns. These deficits associated with the synthetic HMG-R and PCSK-9 inhibitors called for the discovery of alternative therapeutic candidates with potential dual HMG-R and PCSK-9 inhibitory activities from natural origins. Therefore, this report firstly describes the mechanistic insights into the cholesterol homeostasis through HMG-R, PCSK-9, and LDL-R functionality and then compiles the pharmacological effects of natural secondary metabolites with special emphasis on their dual HMG-R and PCSK-9 inhibitory action. In conclusion, various natural products exhibit atheroprotective effects via targeting HMG-R and PCSK-9 activities and lipoprotein metabolism, however, further clinical assessments are still warranted prior their approval for ASCVD risk management in hypercholesterolemic patients.
Collapse
Affiliation(s)
- Mohd Waiz
- IIRC-5, Clinical Biochemistry and Natural Product Research Lab, Department of Biosciences, Integral University, Lucknow, U.P. 226026, India
| | - Sahir Sultan Alvi
- IIRC-5, Clinical Biochemistry and Natural Product Research Lab, Department of Biosciences, Integral University, Lucknow, U.P. 226026, India
| | - M Salman Khan
- IIRC-5, Clinical Biochemistry and Natural Product Research Lab, Department of Biosciences, Integral University, Lucknow, U.P. 226026, India
| |
Collapse
|
3
|
Mujtaba MA, Akhter MH, Alam MS, Ali MD, Hussain A. An updated review on therapeutic potential and recent advances in drug delivery of Berberine: Current status and future prospect. Curr Pharm Biotechnol 2021; 23:60-71. [PMID: 33557735 DOI: 10.2174/1389201022666210208152113] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 12/07/2020] [Accepted: 12/24/2020] [Indexed: 11/22/2022]
Abstract
Natural products are well known for their high potency with minimum side effects. Plant extracts are the most commonly used natural products because of their ease of availability and relatively low production cost. Berberine (BBR), a phytochemical component of some Chinese medicinal herbs (most commonlyBerberis vulgaris), is an isoquinoline alkaloid with several biological and pharmacological effects including antioxidant, anti-inflammatory, antitumour, antimicrobial, antidepressant,hepatoprotective, hypolipidemic, and hypoglycemic actions. Interestingly, multiple studies have shown that BBR is a potential drug candidate with a multi-spectrum therapeutic application. However, the oral delivery of BBR is challenged owing to its poor bioavailability. Therefore, its oral bioavailability needs to be enhanced before it can be used in many clinical applications. This review provides an overview of the various studies that support the broad range of pharmacological activities of BBR. Also, it includes a section to address the issues and challenges related with the drug and methods to improve the properties of BBR such as solubility, stability and bioavailability that may be explored to help patients reap the maximum benefit from this potentially useful drug.
Collapse
Affiliation(s)
- Md Ali Mujtaba
- Department of Pharmaceutics, Faculty of Pharmacy, Northern Border University. Saudi Arabia
| | | | | | - Mohammad Daud Ali
- Department of Pharmacy, Mohammed Al-Mana College for Medical Sciences, Dammam. Saudi Arabia
| | - Afzal Hussain
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, 11451. Saudi Arabia
| |
Collapse
|
4
|
Fatahian A, Haftcheshmeh SM, Azhdari S, Farshchi HK, Nikfar B, Momtazi-Borojeni AA. Promising Anti-atherosclerotic Effect of Berberine: Evidence from In Vitro, In Vivo, and Clinical Studies. Rev Physiol Biochem Pharmacol 2020; 178:83-110. [PMID: 32789786 DOI: 10.1007/112_2020_42] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Elevated levels of plasma cholesterol, impaired vascular wall, and presence of inflammatory macrophages are important atherogenic risk factors contributing to atherosclerotic plaque formation and progression. The interventions modulating these risk factors have been found to protect against atherosclerosis development and to decrease atherosclerosis-related cardiovascular disorders. Nutritional approaches involving supplements followed by improving dietary habits and lifestyle have become growingly attractive and acceptable methods used to control atherosclerosis risk factors, mainly high levels of plasma cholesterol. There are a large number of studies that show berberine, a plant bioactive compound, could ameliorate atherosclerosis-related risk factors. In the present literature review, we put together this studies and provide integrated evidence that exhibits berberine has the potential atheroprotective effect through reducing increased levels of plasma cholesterol, particularly low-density lipoprotein (LDL) cholesterol (LDL-C) via LDL receptor (LDLR)-dependent and LDL receptor-independent mechanisms, inhibiting migration and inflammatory activity of macrophages, improving the functionality of endothelial cells via anti-oxidant activities, and suppressing proliferation of vascular smooth muscle cells. In conclusion, berberine can exert inhibitory effects on the atherosclerotic plaque development mainly through LDL-lowering activity and suppressing atherogenic functions of mentioned cells. As the second achievement of this review, among the signaling pathways through which berberine regulates intracellular processes, AMP-activated protein kinase (AMPK) has a central and critical role, showing that enhancing activity of AMPK pathway can be considered as a promising therapeutic approach for atherosclerosis treatment.
Collapse
Affiliation(s)
- Alireza Fatahian
- Department of Cardiology, Cardiovascular Research Center, Mazandaran University of Medical Sciences, Sari, Iran
| | | | - Sara Azhdari
- Department of Anatomy and Embryology, School of Medicine, Bam University of Medical Sciences, Bam, Iran
| | - Helaleh Kaboli Farshchi
- Department of Horticulture, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Banafsheh Nikfar
- Pars Advanced and Minimally Invasive Medical Manners Research Center, Pars Hospital, Iran University of Medical Sciences, Tehran, Iran.
| | - Amir Abbas Momtazi-Borojeni
- Halal research center of IRI, FDA, Tehran, Iran.
- Department of Medical Biotechnology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
| |
Collapse
|
5
|
He WS, Li L, Wang H, Rui J, Cui D. Synthesis and cholesterol-reducing potential of water-soluble phytosterol derivative. J Funct Foods 2019. [DOI: 10.1016/j.jff.2019.103428] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
|
6
|
Imenshahidi M, Hosseinzadeh H. Berberine and barberry (Berberis vulgaris): A clinical review. Phytother Res 2019; 33:504-523. [DOI: 10.1002/ptr.6252] [Citation(s) in RCA: 126] [Impact Index Per Article: 25.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2018] [Revised: 10/20/2018] [Accepted: 11/03/2018] [Indexed: 02/06/2023]
Affiliation(s)
- Mohsen Imenshahidi
- Department of Pharmacodynamics and Toxicology, School of Pharmacy; Mashhad University of Medical Sciences; Mashhad Iran
- Pharmaceutical Research Center, Pharmaceutical Technology Institute; Mashhad University of Medical Sciences; Mashhad Iran
| | - Hossein Hosseinzadeh
- Department of Pharmacodynamics and Toxicology, School of Pharmacy; Mashhad University of Medical Sciences; Mashhad Iran
- Pharmaceutical Research Center, Pharmaceutical Technology Institute; Mashhad University of Medical Sciences; Mashhad Iran
| |
Collapse
|
7
|
Update on the Benefits and Mechanisms of Action of the Bioactive Vegetal Alkaloid Berberine on Lipid Metabolism and Homeostasis. CHOLESTEROL 2018; 2018:7173920. [PMID: 30057809 PMCID: PMC6051272 DOI: 10.1155/2018/7173920] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Revised: 04/16/2018] [Accepted: 04/24/2018] [Indexed: 01/01/2023]
Abstract
Elevation of circulating levels of blood cholesterol, especially LDL cholesterol, and/or the decrease of HDL cholesterol levels have long been recognized as primary risk factors for developing atherosclerosis that leads to cardiovascular and cerebrovascular disease. Hypertriglyceridemia is an independent risk factor that is known to contribute to the development of atherosclerosis. Thus, various interventional efforts aimed at reducing hypercholesterolemia and hypertriglyceridemia have been practiced clinically for decades to reduce morbidity and mortality risk associated with deleterious cardiovascular and cerebrovascular events. As such, many drugs have been developed and clinically used to treat hypocholesteremia and/or hypertriglyceridemia; however, dietary approaches including supplements along with changes in nutrition and lifestyle have become increasingly attractive and acceptable methods used to control borderline or moderately increased levels of blood cholesterol and triacylglycerols. In this regard, the use of a plant/herbal bioactive compound, berberine (BBR), has recently been studied extensively in terms of its efficacy as well as its mechanisms of action and safety as an alternative intervention that beneficially modulates blood lipids. The aim of this review is to provide a comprehensive update on BBR research, new concepts and directions in terms of product development and current challenges, and future prospects of using BBR to manage diseases and complications associated with dyslipidemia.
Collapse
|
8
|
Add-on therapy with traditional Chinese medicine: An efficacious approach for lipid metabolism disorders. Pharmacol Res 2018; 134:200-211. [PMID: 29935947 DOI: 10.1016/j.phrs.2018.06.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 05/28/2018] [Accepted: 06/05/2018] [Indexed: 12/12/2022]
Abstract
Add-on therapy with traditional Chinese medicine (TCM) has been extensively researched in the intractable diseases, such as asthma, cancer, and Alzheimer's disease. As an entirely new concept, add-on therapy of TCM has been also used to prevent and treat hyperlipidemia via lowering cholesterol level. However, the efficacy of add-on therapy with TCM for mediating lipid metabolism disorders remains controversial. In this review, we summarize and provide strong evidence that add-on therapy of TCM as a novel approach is efficacious and safe for hyperlipidemia associated diseases based on the mediation of lipid metabolism disorders.
Collapse
|
9
|
Luo J, Wang A, Zhen W, Wang Y, Si H, Jia Z, Alkhalidy H, Cheng Z, Gilbert E, Xu B, Liu D. Phytonutrient genistein is a survival factor for pancreatic β-cells via GPR30-mediated mechanism. J Nutr Biochem 2018; 58:59-70. [PMID: 29885598 DOI: 10.1016/j.jnutbio.2018.04.018] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2017] [Revised: 03/29/2018] [Accepted: 04/27/2018] [Indexed: 12/31/2022]
Abstract
We previously discovered that phytonutrient genistein rapidly activates cAMP signaling in β-cells and improves islet mass in diabetic mice. However, the mechanism underlying these actions of genistein is still unclear. Here, we show that pharmacological or molecular inhibition of Gαs blocked genistein-stimulated adenylate cyclase activity in plasma membrane and intracellular cAMP production in INS1 cells and islets. Further, genistein stimulation of cAMP generation was abolished in islets exposed to a specific GPR30 inhibitor G15 or islets from GPR30 deficient (GPR30-/-) mice. In vivo, dietary provision of genistein (0.5 g/kg diet) significantly mitigated streptozotocin-induced hyperglycemia in male WT mice, which was associated with improved blood insulin levels and pancreatic islet mass and survival, whereas these effects were absent in Gpr30-/- mice. Genistein treatment promoted survival of INS1 cells and human islets chronically exposed to palmitate and high glucose. At molecular level, genistein activated CREB phosphorylation and subsequently induced Bcl-2 expression, and knockdown of CREB diminished the protective effect of genistein on β-cells induced by lipoglucotoxicity. Finally, deletion of GPR30 in β-cells or islets ablated genistein-induced CREB phosphorylation and its cytoprotective effect. These findings demonstrate that genistein is a survival factor for β-cells via GPR30-initiated, Gαs-mediated activation of CREB.
Collapse
Affiliation(s)
- Jing Luo
- Department of Human Nutrition, Foods and Exercise, College of Agricultural and Life Sciences, Virginia Tech, Blacksburg, VA
| | - Aihua Wang
- Department of Human Nutrition, Foods and Exercise, College of Agricultural and Life Sciences, Virginia Tech, Blacksburg, VA
| | - Wei Zhen
- Department of Human Nutrition, Foods and Exercise, College of Agricultural and Life Sciences, Virginia Tech, Blacksburg, VA
| | - Yao Wang
- Department of Human Nutrition, Foods and Exercise, College of Agricultural and Life Sciences, Virginia Tech, Blacksburg, VA
| | - Hongwei Si
- Department of Human Sciences, College of Agriculture, Human, and Natural Sciences, Tennessee State University, Nashville, TN
| | - Zhenquan Jia
- Department of Biology, University of North Carolina at Greensboro, Greensboro, NC
| | - Hana Alkhalidy
- Department of Human Nutrition, Foods and Exercise, College of Agricultural and Life Sciences, Virginia Tech, Blacksburg, VA; Department of Nutrition and Food Technology, Faculty of Agriculture, Jordan University of Science and Technology, Irbid 22110, Jordan
| | - Zhiyong Cheng
- Department of Human Nutrition, Foods and Exercise, College of Agricultural and Life Sciences, Virginia Tech, Blacksburg, VA
| | - Elizabeth Gilbert
- Department of Animal and Poultry Sciences, College of Agricultural and Life Sciences, Virginia Tech, Blacksburg, VA
| | - Bin Xu
- Department of Biochemistry, College of Agricultural and Life Sciences, Virginia Tech, Blacksburg, VA
| | - Dongmin Liu
- Department of Human Nutrition, Foods and Exercise, College of Agricultural and Life Sciences, Virginia Tech, Blacksburg, VA.
| |
Collapse
|
10
|
He WS, Pan RR, Li LL, Cui DD, Wang HH, Mao GH, Chen XQ. Combined Lowering Effect of Phytosterol Esters and Tea Extracts on Lipid Profiles in SD Rats. FOOD SCIENCE AND TECHNOLOGY RESEARCH 2018. [DOI: 10.3136/fstr.24.875] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Wen-Sen He
- School of Food and Biological Engineering, Jiangsu University
| | - Rui-Rong Pan
- Clinical Nutrition Department, Affiliated Hospital of Jiangsu University
| | - Ling-Ling Li
- School of Food and Biological Engineering, Jiangsu University
| | - Dan-Dan Cui
- School of Food and Biological Engineering, Jiangsu University
| | - Hui-Hui Wang
- School of Food and Biological Engineering, Jiangsu University
| | - Guang-Hua Mao
- School of the environment and safety engineering, Jiangsu University
| | - Xiao-Qiang Chen
- College of Bioengineering and Food, Hubei University of Technology
| |
Collapse
|
11
|
Zhou X, Ren F, Wei H, Liu L, Shen T, Xu S, Wei J, Ren J, Ni H. Combination of berberine and evodiamine inhibits intestinal cholesterol absorption in high fat diet induced hyperlipidemic rats. Lipids Health Dis 2017; 16:239. [PMID: 29228954 PMCID: PMC5725942 DOI: 10.1186/s12944-017-0628-x] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 11/28/2017] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND Hyperlipidemia characterized of elevated serum lipid levels is a prevalent disease frequently resulting in cardiovascular disease (CVD). Berberine and evodiamine are herbal products of traditional Chinese herb Coptis chinensis and Evodia rutaecarpa, which are indicated to exert regulation of lipid metabolism. Therefore, the objective of this study was to investigate the lipid-lowering effect of berberine and evodiamine combination in hyperlipidemic rats. METHOD The rat model of hyperlipidemia was established by providing high-fat-diet (HFD) for 4 weeks. Berberine (BB), evodiamine (EV), and their combination (BB + EV) were orally administered to HFD induced rats for 4 weeks. Body weight, food utilization, histopathology of liver tissues, lipid profiles of serum and liver were measured. Gas chromatography (GC) analysis was applied to examine the level of plasma total cholesterol and ß- Sitosterol (BS) to estimate cholesterol absorption activity. Furthermore, intestinal NPC1L1, ACAT2, and ApoB48 protein expressions were evaluated by immunohistochemical assay. RESULT According to the results, decreased levels of serum cholesterol (TC), triglycerides (TG), low density lipoprotein-cholesterol (LDL-C), as well as hepatic TC were showed in hyperlipidemic rats treated by combination of berberine and evodiamine. GC analysis indicated that the elevated plasma BS was significantly ameliorated by BB, EV, and BB + EV. In addition, immunohistochemical analysis revealed that BB + EV treatment down-regulated the expressions of intestinal NPC1L1 and ACAT2, and ApoB48 in HFD induced rats. CONCLUSION Based on the above results, combination of berberine and evodiamine exerted a promising preventive effect on hyperlipidemia, partially through inhibiting intestinal absorption of cholesterol.
Collapse
Affiliation(s)
- Xin Zhou
- School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Fengying Ren
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, Chengdu University, Chengdu, 610052, China
| | - Hong Wei
- School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Liyun Liu
- School of International Education, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Tao Shen
- School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
| | - Shijun Xu
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Jiangping Wei
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Jiayue Ren
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Hengfan Ni
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| |
Collapse
|
12
|
Pre-clinical toxicity of a combination of berberine and 5-aminosalicylic acid in mice. Food Chem Toxicol 2016; 97:150-158. [DOI: 10.1016/j.fct.2016.08.031] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Revised: 08/01/2016] [Accepted: 08/26/2016] [Indexed: 12/20/2022]
|
13
|
The Potential Mechanisms of Berberine in the Treatment of Nonalcoholic Fatty Liver Disease. Molecules 2016; 21:molecules21101336. [PMID: 27754444 PMCID: PMC6273247 DOI: 10.3390/molecules21101336] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Revised: 09/26/2016] [Accepted: 09/29/2016] [Indexed: 01/04/2023] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) is a globally observed metabolic disease with high prevalence both in adults and children. However, there is no efficient medication available yet. Increased evidence indicates that berberine (BBR), a natural plant product, has beneficial effects on NAFLD, though the mechanisms are not completely known. In this review, we briefly summarize the pathogenesis of NAFLD and factors that influence the progression of NAFLD, and focus on the potential mechanisms of BBR in the treatment of NAFLD. Increase of insulin sensitivity, regulation of adenosine monophosphate-activated protein kinase (AMPK) pathway, improvement of mitochondrial function, alleviation of oxidative stress, LDLR mRNA stabilization, and regulation of gut microenvironment are the major targets of BBR in the treatment of NAFLD. Additionally, reduction of proprotein convertase subtilisin/kexin 9 (PCSK9) expression and DNA methylation are also involved in pharmacological mechanisms of berberine in the treatment of NAFLD. The immunologic mechanism of BBR in the treatment of NAFLD, development of berberine derivative, drug combinations, delivery routes, and drug dose can be considered in the future research.
Collapse
|
14
|
Imenshahidi M, Hosseinzadeh H. Berberis Vulgaris and Berberine: An Update Review. Phytother Res 2016; 30:1745-1764. [PMID: 27528198 DOI: 10.1002/ptr.5693] [Citation(s) in RCA: 184] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2016] [Revised: 07/04/2016] [Accepted: 07/16/2016] [Indexed: 01/30/2023]
Abstract
Berberine is an isoquinoline alkaloid present in several plants, including Coptis sp. and Berberis sp. Berberine is a customary component in Chinese medicine, and is characterized by a diversity of pharmacological effects. An extensive search in electronic databases (PubMed, Scopus, Ovid, Wiley, ProQuest, ISI, and Science Direct) were used to identify the pharmacological and clinical studies on Berberis vulgaris and berberine, during 2008 to 2015, using 'berberine' and 'Berberis vulgaris' as search words. We found more than 1200 new article studying the properties and clinical uses of berberine and B. vulgaris, for treating tumor, diabetes, cardiovascular disease, hyperlipidemia, inflammation, bacterial and viral infections, cerebral ischemia trauma, mental disease, Alzheimer disease, osteoporosis, and so on. In this article, we have updated the pharmacological effects of B. vulgaris and its active constituent, berberine. Copyright © 2016 John Wiley & Sons, Ltd.
Collapse
Affiliation(s)
- Mohsen Imenshahidi
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hossein Hosseinzadeh
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
| |
Collapse
|
15
|
Wang Y, Yi X, Ghanam K, Zhang S, Zhao T, Zhu X. Berberine decreases cholesterol levels in rats through multiple mechanisms, including inhibition of cholesterol absorption. Metabolism 2014; 63:1167-77. [PMID: 25002181 DOI: 10.1016/j.metabol.2014.05.013] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2014] [Revised: 05/20/2014] [Accepted: 05/29/2014] [Indexed: 10/25/2022]
Abstract
OBJECTIVE The objective was to determine the mechanisms of action of berberine (BBR) on cholesterol homeostasis using in vivo and in vitro models. METHODS Male Sprague-Dawley rats were fed the AIN-93G diet (normal control) or modified AIN-93G diet containing 28% fat, 2% cholesterol and 0.5% cholic acid with treatment of 0 (atherogenic control), 50, 100, and 150 mg/kg·d of BBR, respectively by gavaging in water for 8 weeks. Cholesterol absorption rate was measured with the dual stable isotope ratio method, and plasma lipids were determined using the enzymatic methods. Gene and protein expressions of Acyl-coenzyme A:cholesterol acyltransferase-2 were analyzed in vivo and in vitro. Cholesterol micellarization, uptake and permeability were determined in vitro. RESULTS Rats on the atherogenic diet showed significantly hypercholesterolemic characteristics compared to normal control rats. Treatment with BBR in rats on the atherogenic diet reduced plasma total cholesterol and nonHDL cholesterol levels by 29%-33% and 31%-41%, respectively, with no significant differences being observed among the three doses. The fractional dietary cholesterol absorption rate was decreased by 40%-51%. Rats fed the atherogenic diet showed lower plasma triacylglycerol levels, and no changes were observed after the BBR treatment. BBR interfered with cholesterol micellarization, decreased cholesterol uptake by Caco-2 cells and permeability through Caco-2 monolayer. BBR also inhibited the gene and protein expressions of acyl-coenzyme A cholesterol acyltransferease-2 in the small intestine and Caco-2 cells. CONCLUSION BBR lowered blood cholesterol levels at least in part through inhibiting the intestinal absorption and further by interfering with intraluminal cholesterol micellarization and decreasing enterocyte cholesterol uptake and secretion.
Collapse
Affiliation(s)
- Yanwen Wang
- Aquatic and Crop Resource Development, National Research Council of Canada, Charlottetown, PE, Canada; Department of Biomedical Sciences, University of Prince Edward Island, Charlottetown, PE, Canada.
| | - Xin Yi
- Aquatic and Crop Resource Development, National Research Council of Canada, Charlottetown, PE, Canada; Department of Biomedical Sciences, University of Prince Edward Island, Charlottetown, PE, Canada
| | - Khadija Ghanam
- Aquatic and Crop Resource Development, National Research Council of Canada, Charlottetown, PE, Canada; Department of Biomedical Sciences, University of Prince Edward Island, Charlottetown, PE, Canada
| | - Shuocheng Zhang
- Aquatic and Crop Resource Development, National Research Council of Canada, Charlottetown, PE, Canada
| | - Tiantian Zhao
- Aquatic and Crop Resource Development, National Research Council of Canada, Charlottetown, PE, Canada
| | - Xuemei Zhu
- Aquatic and Crop Resource Development, National Research Council of Canada, Charlottetown, PE, Canada
| |
Collapse
|
16
|
Wang YL, Wang ZJ, Shen HL, Yin M, Tang KX. Effects of artesunate and ursolic acid on hyperlipidemia and its complications in rabbit. Eur J Pharm Sci 2013; 50:366-71. [PMID: 23954455 DOI: 10.1016/j.ejps.2013.08.003] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2012] [Revised: 06/13/2013] [Accepted: 08/05/2013] [Indexed: 12/31/2022]
Abstract
OBJECTIVE To find the novel hypolipidemic agents, the effects of ursolic acid and artesunate on hyperlipidemia and its complications were determined in rabbit fed with Western-type diet. METHODS AND RESULTS New Zealand rabbits fed a Western-type diet developed a hyperlipidemia. Rabbits received ursolic acid (25mg/kg) or artesunate (25mg/kg) alone, or in combination (12.5+12.5mg/kg), to prevent hyperlipidemia. Ursolic acid or artesunate alone significantly decreased the plasma cholesterol and triglyceride in rabbits. Furthermore, they both attenuated liver steatosis and reduced the area of aortic root lesions. The combination of ursolic acid and artesunate was more potent than either agent alone, which indicates a strong synergistic effect. CONCLUSION The hypolipidemic effect of artesunate is firstly reported. Its combination with ursolic acid might have the potential to further develop for the treatment of atherosclerosis.
Collapse
Affiliation(s)
- Y L Wang
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China; Plant Biotechnology R&D Center, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
| | | | | | | | | |
Collapse
|
17
|
Cao S, Zhou Y, Xu P, Wang Y, Yan J, Bin W, Qiu F, Kang N. Berberine metabolites exhibit triglyceride-lowering effects via activation of AMP-activated protein kinase in Hep G2 cells. JOURNAL OF ETHNOPHARMACOLOGY 2013; 149:576-582. [PMID: 23899453 DOI: 10.1016/j.jep.2013.07.025] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2013] [Revised: 06/22/2013] [Accepted: 07/23/2013] [Indexed: 06/02/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Rhizoma coptidis (Huanglian in Chinese) is commonly used in Chinese folk medicine to treat diarrhea, diabetes, hypertension, hyperlipidemia and tumors. This herb has increasingly gained attention because of its use as a hypolipidemic herb. Berberine (BBR) is the most important constituent of R. coptidis that contribute to the pharmacological efficacy of the herb. AIM OF THE STUDY Pharmacokinetic studies have indicated that BBR has poor oral bioavailability. Interestingly, several reports show that absorbed BBR is extensively metabolized in rats and humans. We speculate that the BBR metabolites might be responsible for the pharmacological effects. The aim of this study is to examine BBR metabolites for their triglyceride (TG)-lowering activities and the molecular mechanism to clarify BBR genuine effective forms in vivo. MATERIALS AND METHODS Four BBR metabolites were examined their TG-lowering effects with a commercial triglyceride assay kit. Real-time PCR and Western blotting were used to confirm genes and proteins of interest, respectively. RESULTS Among those BBR metabolites, M2 exhibited the more potential effects on TG-lowering and AMP-activated protein kinase (AMPK) activation in Hep G2 cells as compared with BBR. Moreover, BBR and M2 inhibited gene expressions of acetyl-CoA carboxylase (ACC), fatty acid synthase (FAS), glycerol-3-phosphate acyltransferase (GPAT) and 3-hydroxy-3-methylglutaryl coenzyme A reductase (HMGR), but motivated gene expression of medium chain acyl-CoA dehydrogenase (mCAD) significantly. CONCLUSIONS The results suggested that the TG-lowering effects of BBR and M2 might be partially mediated by the up-regulation of lipolysis gene expressions and down-regulation of lipogenesis gene expressions through activation of the AMPK signaling pathway. BBR and its metabolites might be in vivo active forms of oral doses of BBR, and M2 might be a promising drug candidate against hyperlipidemia.
Collapse
Affiliation(s)
- Shijie Cao
- Department of Biochemistry and Molecular Biology, Shenyang Pharmaceutical University, Shenyang 110016, PR China
| | | | | | | | | | | | | | | |
Collapse
|
18
|
He WS, Wang MG, Pan XX, Li JJ, Jia CS, Zhang XM, Feng B. Role of plant stanol derivatives in the modulation of cholesterol metabolism and liver gene expression in mice. Food Chem 2013; 140:9-16. [DOI: 10.1016/j.foodchem.2013.02.062] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2012] [Revised: 02/02/2013] [Accepted: 02/04/2013] [Indexed: 12/27/2022]
|
19
|
Thilakarathna SH, Wang Y, Rupasinghe HV, Ghanam K. Apple peel flavonoid- and triterpene-enriched extracts differentially affect cholesterol homeostasis in hamsters. J Funct Foods 2012. [DOI: 10.1016/j.jff.2012.07.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
|
20
|
Zeng Y, Song JX, Shen XC. Herbal Remedies Supply a Novel Prospect for the Treatment of Atherosclerosis: A Review of Current Mechanism Studies. Phytother Res 2011; 26:159-67. [DOI: 10.1002/ptr.3587] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2010] [Revised: 05/02/2011] [Accepted: 05/11/2011] [Indexed: 12/14/2022]
Affiliation(s)
- Yu Zeng
- Department of Pharmacology; Guiyang Medical University; Guiyang; China
| | - Ju-Xian Song
- School of Chinese Medicine; The University of Hong Kong; Pokfulam; Hong Kong, China
| | - Xiang-Chun Shen
- Department of Pharmacology; Guiyang Medical University; Guiyang; China
| |
Collapse
|
21
|
He WS, Jia CS, Yang YB, Ma Y, Zhang XM, Feng B, Jin J. Cholesterol-lowering effects of plant steryl and stanyl laurate by oral administration in mice. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2011; 59:5093-5099. [PMID: 21413824 DOI: 10.1021/jf104031e] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The present study was conducted to investigate the efficacy of synthesized plant steryl and stanyl laurate in lowering the cholesterol level and to further examine the cholesterol-lowering potential of the free plant sterols and stanols dissolved in liquid emulsion on serum and liver lipids in mice by oral administration. Experimental results showed that both plant steryl and stanyl laurate could significantly decrease the serum levels of TC, LDL-C, LDL-C/HDL-C, and liver cholesterol contents and markedly increase fecal cholesterol concentrations but have no effect on serum TAG level, indicating that the produced plant steryl and stanyl laurate retained the cholesterol-lowering potential of natural plant sterols and stanols. However, no statistical difference in cholesterol-lowering efficacy was observed between plant steryl laurate and plant stanyl laurate, and free plant sterols and stanols dissolved in liquid emulsion could also significantly decrease serum cholesterol levels and markedly increase fecal cholesterol excretion. These results suggested that the esterified plant sterols/stanols had comparable effects to the free plant sterols/stanols in lowering serum TC levels but that they did gain a solubility advantage from the free plant sterols/stanols. Therefore, plant steryl/stanyl laurate could be considered as a potential nutraceutical or functional ingredient to reduce or prevent atherosclerosis and its related complications.
Collapse
Affiliation(s)
- Wen-Sen He
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | | | | | | | | | | | | |
Collapse
|
22
|
Fu Z, Zhang W, Zhen W, Lum H, Nadler J, Bassaganya-Riera J, Jia Z, Wang Y, Misra H, Liu D. Genistein induces pancreatic beta-cell proliferation through activation of multiple signaling pathways and prevents insulin-deficient diabetes in mice. Endocrinology 2010; 151:3026-37. [PMID: 20484465 PMCID: PMC2903942 DOI: 10.1210/en.2009-1294] [Citation(s) in RCA: 147] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Genistein, a flavonoid in legumes and some herbal medicines, has various biological actions. However, studies on whether genistein has an effect on pancreatic beta-cell function are very limited. In the present study, we investigated the effect of genistein on beta-cell proliferation and cellular signaling related to this effect and further determined its antidiabetic potential in insulin-deficient diabetic mice. Genistein induced both INS1 and human islet beta-cell proliferation after 24 h of incubation, with 5 mum genistein inducing a maximal 27% increase. The effect of genistein on beta-cell proliferation was neither dependent on estrogen receptors nor shared by 17beta-estradiol or a host of structurally related flavonoid compounds. Pharmacological or molecular intervention of protein kinase A (PKA) or ERK1/2 completely abolished genistein-stimulated beta-cell proliferation, suggesting that both molecules are essential for genistein action. Consistent with its effect on cell proliferation, genistein induced cAMP/PKA signaling and subsequent phosphorylation of ERK1/2 in both INS1 cells and human islets. Furthermore, genistein induced protein expression of cyclin D1, a major cell-cycle regulator essential for beta-cell growth. Dietary intake of genistein significantly improved hyperglycemia, glucose tolerance, and blood insulin levels in streptozotocin-induced diabetic mice, concomitant with improved islet beta-cell proliferation, survival, and mass. These results demonstrate that genistein may be a natural antidiabetic agent by directly modulating pancreatic beta-cell function via activation of the cAMP/PKA-dependent ERK1/2 signaling pathway.
Collapse
Affiliation(s)
- Zhuo Fu
- Department of Human Nutrition, Foods, and Exercise, Virginia Polytechnic Institute and State University, Blacksburg, VA 24060, USA
| | | | | | | | | | | | | | | | | | | |
Collapse
|
23
|
Ma BL, Ma YM, Shi R, Wang TM, Zhang N, Wang CH, Yang Y. Identification of the toxic constituents in Rhizoma Coptidis. JOURNAL OF ETHNOPHARMACOLOGY 2010; 128:357-364. [PMID: 20117200 DOI: 10.1016/j.jep.2010.01.047] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2009] [Revised: 01/15/2010] [Accepted: 01/25/2010] [Indexed: 05/28/2023]
Abstract
AIM OF THE STUDY Rhizoma Coptidis (Huanglian) is a widely used Traditional Chinese Medicine. However, it causes human as well as animal toxicities. In this study, we aimed to ascertain the toxic constituents in Rhizoma Coptidis. MATERIALS AND METHODS The acute toxicity of both the total extract and the alkaloid-rich extract of Rhizoma Coptidis were tested in mice. The dose related tissue concentration of the Rhizoma Coptidis alkaloids in mice was determined using high performance liquid chromatography with ultraviolet detection. The influence of phenobarbital sodium [a non-selective hepatic enzyme (P450) inducer] on the acute toxicity of Rhizoma Coptidis as well as the tissue concentration of the alkaloids was investigated. The cytotoxicity of the Rhizoma Coptidis alkaloids was tested in six cell lines using the MTT assay. RESULTS The median acute oral lethal dose of the total extract of Rhizoma Coptidis was 2.95g/kg in mice. The alkaloid-rich extract was much more toxic than the total extract of Rhizoma Coptidis. Four Rhizoma Coptidis alkaloids were detected in brain, heart, and lung tissues of mice that received the oral total extract of Rhizoma Coptidis. Tissue concentration increased nonlinearly with higher doses. Phenobarbital sodium decreased the tissue concentration of every alkaloid as well as the toxicity of Rhizoma Coptidis. All alkaloids, especially berberine, showed dose and time dependent cytotoxicity. CONCLUSIONS The toxic constituents of Rhizoma Coptidis were the alkaloids, mainly berberine.
Collapse
Affiliation(s)
- Bing-Liang Ma
- Laboratory of Pharmacokinetics, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | | | | | | | | | | | | |
Collapse
|
24
|
Wang Y, Jia X, Ghanam K, Beaurepaire C, Zidichouski J, Miller L. Berberine and plant stanols synergistically inhibit cholesterol absorption in hamsters. Atherosclerosis 2009; 209:111-7. [PMID: 19782362 DOI: 10.1016/j.atherosclerosis.2009.08.050] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2009] [Revised: 08/10/2009] [Accepted: 08/25/2009] [Indexed: 11/30/2022]
Abstract
The present study was conducted to determine the efficacy and underlying mechanism of berberine (BBR), plant stanols (PS) and their combination on plasma lipids. Male Golden Syrian hamsters were randomly divided into 4 groups (n=15/group) and fed a cornstarch-casein-sucrose-based diet containing 0.15% cholesterol and 5% fat. Three treatment groups were supplemented with 0.17% (equivalent to 100mgkg(-1)d(-1)) BBR, 1% PS, or a combination of both (BBRPS) for 4wk. At the end of the study, plasma lipids were analyzed with enzymatic methods, cholesterol absorption and synthesis using stable isotope tracer methodology, and gene and protein expressions in the liver and small intestine using real-time PCR and Western blot, respectively. BBR and PS significantly lowered plasma total- and nonHDL-cholesterol levels, and BBRPS markedly improved cholesterol-lowering efficacy compared to BBR or PS alone. Further examinations revealed that BBR and PS both inhibited cholesterol absorption and by contrast, increased cholesterol synthesis, and exerted a synergistic action when they were combined. Plasma total or nonHDL-cholesterol levels were significantly correlated with cholesterol absorption rates. BBR upregulated sterol 27-hydroxlase gene expression and BBRPS increased both cholesterol-7alpha-hydroxylase and sterol 27-hydroxlase gene expressions. BBR and PS also synergistically decreased plasma triacylglycerides. These findings suggest that the cholesterol-lowering action of BBR might involve a combination of inhibition of cholesterol absorption and stimulation of bile acid synthesis. The combination of BBR and PS improves cholesterol-lowering efficacy through a synergistic action on cholesterol absorption, in addition to synergistically reducing plasma triacylglycerols in hamsters.
Collapse
Affiliation(s)
- Yanwen Wang
- Institute for Nutrisciences and Health, National Research Council Canada, Charlottetown, PE, Canada.
| | | | | | | | | | | |
Collapse
|
25
|
Ghayur MN. Traditional Chinese Medicine Research and Education in Canada. J Altern Complement Med 2009; 15:689-94. [DOI: 10.1089/acm.2008.0552] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
26
|
Cheng ZF, Zhang YQ, Liu FC. Berberine against gastrointestinal peptides elevation and mucous secretion in hyperthyroid diarrheic rats. ACTA ACUST UNITED AC 2009; 155:145-9. [PMID: 19323986 DOI: 10.1016/j.regpep.2008.12.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2008] [Revised: 12/17/2008] [Accepted: 12/24/2008] [Indexed: 01/18/2023]
Abstract
To investigate the underlying mechanisms of Berberine-mediated antidiarrheal effects in thyroid hormone-induced diarrhea in rats, gastrointestinal peptides, such as motilin, gastrin, vasoactive intestinal peptide, and somatostatin from plasma and tissue of hyperthyroid diarrheic rats were measured using radioimmunoassay in healthy control, model, and treated model groups. The number and volume of goblet cells were also observed. Compared with healthy control, hyperthyroid diarrheic rats exhibited a significant reduction in body weight, and increase in plasma concentrations of tri-iodothyronine and free thyroxine along with the increase of wet stool. Both plasma motilin and gastrin were also elevated and reduced remarkably in Berberine-treated subgroup along with the body weight increased and wet stool reduced at the meantime. Significant changes in plasma vasoactive intestinal peptide and somatostatin were not seen. Gastrointestinal peptides trend in tissue samples were similar to those observed in plasma. Morphological data demonstrated an increase in number and/or volume of goblet cells to some extent in duodenum, jejunum, ileum, and colon, respectively and decreased by administration of Berberine. The possible underlying mechanisms of antidiarrheal effects of Berberine may be due in partially to the reduction of the number of goblet cells and the amount of mucous secretion through re-balancing gastrointestinal peptides.
Collapse
Affiliation(s)
- Zhi-Feng Cheng
- Department of Life Science and Engineering, Harbin Institute of Technology, Harbin, 150001, PR China.
| | | | | |
Collapse
|
27
|
PAR-5359, a well-balanced PPARalpha/gamma dual agonist, exhibits equivalent antidiabetic and hypolipidemic activities in vitro and in vivo. Eur J Pharmacol 2008; 595:119-25. [PMID: 18727927 DOI: 10.1016/j.ejphar.2008.07.066] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2008] [Revised: 07/16/2008] [Accepted: 07/23/2008] [Indexed: 02/01/2023]
Abstract
Peroxisome proliferator-activated receptor (PPAR) alpha and gamma are key regulators of lipid homeostasis and insulin resistance. In this study, we characterize the pharmacological profiles of PAR-5359, a dual agonist of PPARalpha and gamma with well-balanced activities. In transient transactivation assay, PAR-5359 (3-(4-(2[4-(4chloro-phenyl)-3,6-dihydro-2H-pyridin-1-yl]-ethoxy)-phenyl)-(2S)-ethoxy-propionic acid) significantly activated human and mouse PPARalpha and gamma without activating PPARdelta. In functional assays using human mesenchymal stem cells and human hepatoma HepG2 cells, PAR-5359 significantly induced adipocyte differentiation and human ApoA1 secretion, which coincided with its transactivation potencies against the corresponding human receptor subtypes. Interestingly, PAR-5359 showed equivalent potencies against the mouse receptor subtypes (alpha and gamma; 2.84 microM and 3.02 microM, respectively), which suggests the possibility that PAR-5359 could simultaneously activates each subtype of receptors subtype in under physiological conditions. In an insulin-resistant ob/ob mouse model, PAR-5359 significantly reduced plasma insulin levels, improved insulin sensitivity (HOMA-IR), and completely normalized plasma glucose levels. In a severe diabetic db/db mouse model, PAR-5359 dose-dependently reduced the plasma levels of glucose (ED(30) = 0.07 mg/kg). Furthermore, it lowered plasma levels of non HDL- (ED(30) = 0.13 mg/kg) and total cholesterol (ED(30) = 0.03 mg/kg) in high cholesterol diet-fed rats for 4 days treatment. These results suggest that PAR-5359 has the balanced activities for PPARalpha and PPARgamma in vivo as well as in vitro. And its balanced activities may render PAR-5359 as a pharmacological tool in elucidating the complex roles of PPARalpha/gamma dual agonists.
Collapse
|