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Dai Z, Wu Y, Xiong Y, Wu J, Wang M, Sun X, Ding X, Yang L, Sun X, Ge G. CYP1A inhibitors: Recent progress, current challenges, and future perspectives. Med Res Rev 2024; 44:169-234. [PMID: 37337403 DOI: 10.1002/med.21982] [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: 12/09/2022] [Revised: 03/28/2023] [Accepted: 05/23/2023] [Indexed: 06/21/2023]
Abstract
Mammalian cytochrome P450 1A (CYP1A) are key phase I xenobiotic-metabolizing enzymes that play a distinctive role in metabolic activation or metabolic clearance of a variety of procarcinogens, drugs, and endogenous substances. Human CYP1A subfamily contains two members (hCYP1A1 and hCYP1A2), which are known to catalyze the oxidative activation of some environmental procarcinogens into carcinogenic species. Increasing evidence has demonstrated that CYP1A inhibitor therapies are promising strategies for cancer chemoprevention or overcoming CYP1A-associated drug toxicity and resistance. Herein, we reviewed recent advances in the discovery and characterization of hCYP1A inhibitors, from the discovery approaches to structural features and biomedical applications of hCYP1A inhibitors. The inhibition potentials, inhibition modes, and inhibition constants of all reported hCYP1A inhibitors are comprehensively summarized. Meanwhile, the structural features and structure-activity relationships of different classes of hCYP1A1 and hCYP1A2 inhibitors are analyzed and discussed in depth. Furthermore, the major challenges and future directions for this field are presented and highlighted. Collectively, the information and knowledge presented here will strongly facilitate the researchers to discover and develop more efficacious CYP1A inhibitors for specific purposes, such as chemo-preventive agents or as tool molecules in hCYP1A-related fundamental studies.
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Affiliation(s)
- Ziru Dai
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Yue Wu
- Shanghai Frontiers Science Center for TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yuan Xiong
- Shanghai Frontiers Science Center for TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Jingjing Wu
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, China
| | - Min Wang
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Xiao Sun
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Xinxin Ding
- Department of Pharmacology and Toxicology, College of Pharmacy, University of Arizona, Tucson, America
| | - Ling Yang
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, China
| | - Xiaobo Sun
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Guangbo Ge
- Shanghai Frontiers Science Center for TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, China
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Ben-Eltriki M, Shankar G, Tomlinson Guns ES, Deb S. Pharmacokinetics and pharmacodynamics of Rh2 and aPPD ginsenosides in prostate cancer: a drug interaction perspective. Cancer Chemother Pharmacol 2023; 92:419-437. [PMID: 37709921 DOI: 10.1007/s00280-023-04583-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 08/14/2023] [Indexed: 09/16/2023]
Abstract
Ginsenoside Rh2 and its aglycon (aPPD) are one of the major metabolites from Panax ginseng. Preclinical studies suggest that Rh2 and aPPD have antitumor effects in prostate cancer (PCa). Our aims in this review are (1) to describe the pharmacokinetic (PK) properties of Rh2 and aPPD ginsenosides; 2) to provide an overview of the preclinical findings on the use of Rh2 and aPPD in the treatment of PCa; and (3) to highlight the mechanisms of its PK and pharmacodynamic (PD) drug interactions. Increasing evidence points to the potential efficacy of Rh2 or aPPD for PCa treatment. Based on the laboratory studies, Rh2 or aPPD combinations revealed an additive or synergistic interaction or enhanced sensitivity of anticancer drugs toward PCa. This review reveals that enhanced anticancer activities were demonstrated in preclinical studies through interactions of Rh2 and/or aPPD with the proteins related to PK (e.g., cytochrome P450 enzymes, transporters) or PD of the other anticancer drugs or PCa signaling pathways. In conclusion, combining Rh2 or aPPD with anti-prostate cancer drugs leads to PK or PD interactions which could facilitate either therapeutically beneficial or toxic effects.
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Affiliation(s)
- Mohamed Ben-Eltriki
- The Vancouver Prostate Centre at Vancouver General Hospital, 2660 Oak Street, Vancouver, BC, V6H 3Z6, Canada.
- Cochrane Hypertension Review Group, Therapeutic Initiative, University of British Columbia, Vancouver, BC, Canada.
- Community Pharmacist, Vancouver Area, BC, Canada.
- Department of Pharmacology and Therapeutics, Max Rady College of Medicine, University of Manitoba, Winnipeg, MB, Canada.
| | - Gehana Shankar
- The Vancouver Prostate Centre at Vancouver General Hospital, 2660 Oak Street, Vancouver, BC, V6H 3Z6, Canada
| | - Emma S Tomlinson Guns
- The Vancouver Prostate Centre at Vancouver General Hospital, 2660 Oak Street, Vancouver, BC, V6H 3Z6, Canada
| | - Subrata Deb
- Department of Pharmaceutical Sciences, College of Pharmacy, Larkin University, Miami, FL, 33169, USA.
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Evaluation of Concomitant Use of Anticancer Drugs and Herbal Products: From Interactions to Synergic Activity. Cancers (Basel) 2022; 14:cancers14215203. [PMID: 36358622 PMCID: PMC9657145 DOI: 10.3390/cancers14215203] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 10/06/2022] [Accepted: 10/20/2022] [Indexed: 01/07/2023] Open
Abstract
CAM is used by about 40% of cancer patients in Western Countries, with peaks of 80% for breast cancer patients. Cancer patients use CAM to boost immune function, to control cancer symptoms and treatment-related side effects, and to improve health-related quality of life (HR-QoL) and survival. Unfortunately, self-prescription of natural remedies in cancer patients can lead to unexpected toxicities and can reduce the effectiveness of cancer therapy. Although CAM usually refers to all the "natural or organic" products/methods that are generally considered less toxic, there are concerns about drug interactions, especially in patients participating in clinical trials with experimental agents. Despite the claims of the promising and potential benefits made by prescribers, many CAMs lack clear scientific evidence of their safety and efficacy. Given the widespread use of CAM-both clearly declared and overt-in this review, we focused on the most important known data on the risk of interactions between biologics and oncology drugs with the goal of opening up CAM in accordance with the meaning of integrative medicine.
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Miao L, Yang Y, Li Z, Fang Z, Zhang Y, Han CC. Ginsenoside Rb2: A review of pharmacokinetics and pharmacological effects. J Ginseng Res 2021; 46:206-213. [PMID: 35509822 PMCID: PMC9058830 DOI: 10.1016/j.jgr.2021.11.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 11/10/2021] [Accepted: 11/12/2021] [Indexed: 02/06/2023] Open
Abstract
Ginsenoside Rb2 is an active protopanaxadiol-type saponin, widely existing in the stem and leave of ginseng. Rb2 has recently been the focus of studies for pharmaceutical properties. This paper provides an overview of the preclinical and clinical pharmacokinetics for Rb2, which exhibit poor absorption, rapid tissue distribution and slow excretion through urine. Pharmacological studies indicate a beneficial role of Rb2 in the prevention and treatment of diabetes, obesity, tumor, photoaging, virus infection and cardiovascular problems. The underlying mechanism is involved in an inhibition of oxidative stress, ROS generation, inflammation and apoptosis via regulation of various cellular signaling pathways and molecules, including AKT/SHP, MAPK, EGFR/SOX2, TGF-β1/Smad, SIRT1, GPR120/AMPK/HO-1 and NF-κB. This work would provide a new insight into the understanding and application of Rb2. However, its therapeutic effects have not been clinically evaluated. Further studies should be aimed at the clinical treatment of Rb2.
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Affiliation(s)
- Longxing Miao
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Yijun Yang
- Department of Pharmacy, Shandong Medical College, Jinan, China
| | - Zhongwen Li
- Department of Pharmacy, Shandong Medical College, Jinan, China
| | - Zengjun Fang
- The Second Hospital, Cheeloo College of Medicine, Shandong University, China
| | - Yongqing Zhang
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China
- Shandong Provincial Collaborative Innovation Center for Quality Control and Construction of the Whole Industrial Chain of Traditional Chinese Medicine, Jinan, Shandong, China
- Corresponding author. School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China.
| | - Chun-chao Han
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China
- Shandong Provincial Collaborative Innovation Center for Quality Control and Construction of the Whole Industrial Chain of Traditional Chinese Medicine, Jinan, Shandong, China
- Corresponding author. School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China. Tel.: +86 531 82613129; Fax: +86 86 531 82613129.
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Truong VL, Jun M, Jeong WS. Phytochemical and Over-The-Counter Drug Interactions: Involvement of Phase I and II Drug-Metabolizing Enzymes and Phase III Transporters. J Med Food 2021; 24:786-805. [PMID: 34382862 DOI: 10.1089/jmf.2021.k.0003] [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] [Indexed: 12/26/2022] Open
Abstract
Consumption of plant-derived natural products and over-the-counter (OTC) drugs is increasing on a global scale, and studies of phytochemical-OTC drug interactions are becoming more significant. The intake of dietary plants and herbs rich in phytochemicals may affect drug-metabolizing enzymes (DMEs) and transporters. These effects may lead to alterations in pharmacokinetics and pharmacodynamics of OTC drugs when concomitantly administered. Some phytochemical-drug interactions benefit patients through enhanced efficacy, but many interactions cause adverse effects. This review discusses possible mechanisms of phytochemical-OTC drug interactions mediated by phase I and II DMEs and phase III transporters. In addition, current information is summarized for interactions between phytochemicals derived from fruits, vegetables, and herbs and OTC drugs, and counseling is provided on appropriate and safe use of OTC drugs.
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Affiliation(s)
- Van-Long Truong
- Food and Bio-Industry Research Institute, School of Food Science and Biotechnology, College of Agriculture and Life Sciences, Kyungpook National University, Daegu, Korea
| | - Mira Jun
- Brain Busan 21 Plus Program, Department of Food Science and Nutrition, Graduate School, Center for Silver-Targeted Biomaterials, Dong-A University, Busan, Korea
| | - Woo-Sik Jeong
- Food and Bio-Industry Research Institute, School of Food Science and Biotechnology, College of Agriculture and Life Sciences, Kyungpook National University, Daegu, Korea
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6
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Wang S, Li W, Yang J, Yang Z, Yang C, Jin H. Research Progress of Herbal Medicines on Drug Metabolizing Enzymes: Consideration Based on Toxicology. Curr Drug Metab 2020; 21:913-927. [PMID: 32819254 DOI: 10.2174/1389200221999200819144204] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 06/02/2020] [Accepted: 06/03/2020] [Indexed: 11/22/2022]
Abstract
The clinical application of herbal medicines is increasing, but there is still a lack of comprehensive safety data and in-depth research into mechanisms of action. The composition of herbal medicines is complex, with each herb containing a variety of chemical components. Each of these components may affect the activity of metabolizing enzymes, which may lead to herb-drug interactions. It has been reported that the combined use of herbs and drugs can produce some unexpected interactions. Therefore, this study reviews the progress of research on safety issues caused by the effects of herbs on metabolizing enzymes with reference to six categories of drugs, including antithrombotic drugs, non-steroidal anti-inflammatory drugs, anti-diabetic drugs, statins lipid-lowering drugs, immunosuppressants, and antineoplastic drugs. Understanding the effects of herbs on the activity of metabolizing enzymes could help avoid the toxicity and adverse drug reactions resulting from the co-administration of herbs and drugs, and help doctors to reduce the risk of prescription incompatibility.
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Affiliation(s)
- Shuting Wang
- New Drug Safety Evaluation Center, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
| | - Wanfang Li
- New Drug Safety Evaluation Center, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
| | - Jianbo Yang
- Institute for Control of Chinese Traditional Medicine and Ethnic Medicine, National Institutes for Food and Drug Control, Beijing 100050, China
| | - Zengyan Yang
- Guangxi International Zhuang Medicine Hospital, Nanning, 530001, China
| | - Cuiping Yang
- New Drug Safety Evaluation Center, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
| | - Hongtao Jin
- New Drug Safety Evaluation Center, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
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Hussain Sh A, Shahen M, . L, . S, Wang Y. Herbal Traditional Medicines Ginseng (Panax quinquennium L.) Effects on Anti-nose Cancer and Anti-toxin in Systematic Pharmacology Treatment Mechanism for Nose Cancer: A Review. INT J PHARMACOL 2018. [DOI: 10.3923/ijp.2019.10.18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Kim H, Lee JH, Kim JE, Kim YS, Ryu CH, Lee HJ, Kim HM, Jeon H, Won HJ, Lee JY, Lee J. Micro-/nano-sized delivery systems of ginsenosides for improved systemic bioavailability. J Ginseng Res 2018; 42:361-369. [PMID: 29983618 PMCID: PMC6026383 DOI: 10.1016/j.jgr.2017.12.003] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Revised: 12/04/2017] [Accepted: 12/06/2017] [Indexed: 02/04/2023] Open
Abstract
Ginsenosides, dammarane-type triterpene saponins obtained from ginseng, have been used as a natural medicine for many years in the Orient due to their various pharmacological activities. However, the therapeutic potential of ginsenosides has been largely limited by the low bioavailability of the natural products caused mainly by low aqueous solubility, poor biomembrane permeability, instability in the gastrointestinal tract, and extensive metabolism in the body. To enhance the bioavailability of ginsenosides, diverse micro-/nano-sized delivery systems such as emulsions, polymeric particles, and vesicular systems have been investigated. The delivery systems improved the bioavailability of ginsenosides by enhancing solubility, permeability, and stability of the natural products. This mini-review aims to provide comprehensive information on the micro-/nano-sized delivery systems for increasing the bioavailability of ginsenosides, which may be helpful for designing better delivery systems to maximize the versatile therapeutic potential of ginsenosides.
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Affiliation(s)
- Hyeongmin Kim
- College of Pharmacy, Chung-Ang University, Seoul 06974, Korea
| | - Jong Hyuk Lee
- Department of Pharmaceutical Engineering, College of Life and Health Sciences, Hoseo University, Asan, Republic of Korea
| | - Jee Eun Kim
- Graduate School of Pharmaceutical Management, Chung-Ang University, Seoul, Republic of Korea
| | - Young Su Kim
- Graduate School of Pharmaceutical Management, Chung-Ang University, Seoul, Republic of Korea
| | - Choong Ho Ryu
- Graduate School of Pharmaceutical Management, Chung-Ang University, Seoul, Republic of Korea
| | - Hong Joo Lee
- Graduate School of Pharmaceutical Management, Chung-Ang University, Seoul, Republic of Korea
| | - Hye Min Kim
- Graduate School of Pharmaceutical Management, Chung-Ang University, Seoul, Republic of Korea
| | - Hyojin Jeon
- College of Pharmacy, Chung-Ang University, Seoul 06974, Korea
| | - Hyo-Joong Won
- College of Pharmacy, Chung-Ang University, Seoul 06974, Korea
| | - Ji-Yun Lee
- College of Pharmacy, Chung-Ang University, Seoul 06974, Korea
| | - Jaehwi Lee
- College of Pharmacy, Chung-Ang University, Seoul 06974, Korea
- Graduate School of Pharmaceutical Management, Chung-Ang University, Seoul, Republic of Korea
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Park SY, Park JH, Kim HS, Lee CY, Lee HJ, Kang KS, Kim CE. Systems-level mechanisms of action of Panax ginseng: a network pharmacological approach. J Ginseng Res 2018; 42:98-106. [PMID: 29348728 PMCID: PMC5766701 DOI: 10.1016/j.jgr.2017.09.001] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Revised: 08/30/2017] [Accepted: 09/05/2017] [Indexed: 02/04/2023] Open
Abstract
Panax ginseng has been used since ancient times based on the traditional Asian medicine theory and clinical experiences, and currently, is one of the most popular herbs in the world. To date, most of the studies concerning P. ginseng have focused on specific mechanisms of action of individual constituents. However, in spite of many studies on the molecular mechanisms of P. ginseng, it still remains unclear how multiple active ingredients of P. ginseng interact with multiple targets simultaneously, giving the multidimensional effects on various conditions and diseases. In order to decipher the systems-level mechanism of multiple ingredients of P. ginseng, a novel approach is needed beyond conventional reductive analysis. We aim to review the systems-level mechanism of P. ginseng by adopting novel analytical framework-network pharmacology. Here, we constructed a compound-target network of P. ginseng using experimentally validated and machine learning-based prediction results. The targets of the network were analyzed in terms of related biological process, pathways, and diseases. The majority of targets were found to be related with primary metabolic process, signal transduction, nitrogen compound metabolic process, blood circulation, immune system process, cell-cell signaling, biosynthetic process, and neurological system process. In pathway enrichment analysis of targets, mainly the terms related with neural activity showed significant enrichment and formed a cluster. Finally, relative degrees analysis for the target-disease association of P. ginseng revealed several categories of related diseases, including respiratory, psychiatric, and cardiovascular diseases.
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Affiliation(s)
- Sa-Yoon Park
- Department of Physiology, College of Korean Medicine, Gachon University, Seongnam, Republic of Korea
| | - Ji-Hun Park
- Department of Physiology, College of Korean Medicine, Gachon University, Seongnam, Republic of Korea
| | - Hyo-Su Kim
- Department of Physiology, College of Korean Medicine, Gachon University, Seongnam, Republic of Korea
| | - Choong-Yeol Lee
- Department of Physiology, College of Korean Medicine, Gachon University, Seongnam, Republic of Korea
| | - Hae-Jeung Lee
- Department of Food and Nutrition, College of BioNano Technology, Gachon University, Seongnam, Republic of Korea
| | - Ki Sung Kang
- Department of Preventive Medicine, College of Korean Medicine, Gachon University, Seongnam, Republic of Korea
| | - Chang-Eop Kim
- Department of Physiology, College of Korean Medicine, Gachon University, Seongnam, Republic of Korea
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Kim SJ, Choi S, Kim M, Park C, Kim GL, Lee SO, Kang W, Rhee DK. Effect of Korean Red Ginseng extracts on drug-drug interactions. J Ginseng Res 2017; 42:370-378. [PMID: 29989018 PMCID: PMC6035379 DOI: 10.1016/j.jgr.2017.08.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 08/18/2017] [Indexed: 11/24/2022] Open
Abstract
Background Ginseng has been the subject of many experimental and clinical studies to uncover the diverse biological activities of its constituent compounds. It is a traditional medicine that has been used for its immunostimulatory, antithrombotic, antioxidative, anti-inflammatory, and anticancer effects. Ginseng may interact with concomitant medications and alter metabolism and/or drug transport, which may alter the known efficacy and safety of a drug; thus, the role of ginseng may be controversial when taken with other medications. Methods We extensively assessed the effects of Korean Red Ginseng (KRG) in rats on the expression of enzymes responsible for drug metabolism [cytochrome p450 (CYP)] and transporters [multiple drug resistance (MDR) and organic anion transporter (OAT)] in vitro and on the pharmacokinetics of two probe drugs, midazolam and fexofenadine, after a 2-wk repeated administration of KRG at different doses. Results The results showed that 30 mg/kg KRG significantly increased the expression level of CYP3A11 protein in the liver and 100 mg/kg KRG increased both the mRNA and protein expression of OAT1 in the kidney. Additionally, KRG significantly increased the mRNA and protein expression of OAT1, OAT3, and MDR1 in the liver. Although there were no significant changes in the metabolism of midazolam to its major metabolite, 1′-hydroxymidazolam, KRG significantly decreased the systemic exposure of fexofenadine in a dose-dependent manner. Conclusion Because KRG is used as a health supplement, there is a risk of KRG overdose; thus, a clinical trial of high doses would be useful. The use of KRG in combination with P-glycoprotein substrate drugs should also be carefully monitored.
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Affiliation(s)
- Se-Jin Kim
- School of Pharmacy, Sungkyunkwan University, Suwon, Republic of Korea
| | - Seungmok Choi
- College of Pharmacy, Chung-Ang University, Seoul, Republic of Korea
| | - Minsoo Kim
- College of Pharmacy, Chung-Ang University, Seoul, Republic of Korea
| | - Changmin Park
- College of Pharmacy, Chung-Ang University, Seoul, Republic of Korea
| | - Gyu-Lee Kim
- School of Pharmacy, Sungkyunkwan University, Suwon, Republic of Korea
| | - Si-On Lee
- School of Pharmacy, Sungkyunkwan University, Suwon, Republic of Korea
| | - Wonku Kang
- College of Pharmacy, Chung-Ang University, Seoul, Republic of Korea
| | - Dong-Kwon Rhee
- School of Pharmacy, Sungkyunkwan University, Suwon, Republic of Korea
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12
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Ma BL, Ma YM. Pharmacokinetic herb–drug interactions with traditional Chinese medicine: progress, causes of conflicting results and suggestions for future research. Drug Metab Rev 2016; 48:1-26. [DOI: 10.3109/03602532.2015.1124888] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Xue M, Yang L, Shi DZ, Radauer C, Breiteneder H, Ma Y. Qualitative analysis of xinyue capsules by high-performance liquid chromatography: Preliminary evaluation of drug quality in a Sino-Austrian joint study. Chin J Integr Med 2015; 21:772-7. [PMID: 26525548 DOI: 10.1007/s11655-015-2311-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2014] [Indexed: 10/22/2022]
Abstract
OBJECTIVE To develop a reliable method to assess the stability of xinyue capsules containing Panax quinquefolius saponins according to European quality standards. METHODS An efficient high-performance liquid chromatography ultraviolet (HPLC-UV) method was established to analyse six main ginsenosides (Rb1, Rb2, Rc, Rd, Re and Rg1) in six different batches (120 capsules/batch) from the same lot of xinyue capsules and in one batch measured six times within one day. The six ginsenosides were separated on a Hypersil BDS-C18 column (3 μm, 100 mm×3 mm) at a flow rate of 0.5 mL/min. Gradient elution was performed using a mobile phase gradient of acetonitrile-water modified with 0.01% formic acid. The HPLC chromatograms were analyzed with "LC data comparison" using Lab Solutions software. RESULTS The HPLC peaks were identified by comparing their retention times (Rg1: 23.44 min, Re: 23.77 min, Rb1: 35.24 min, Rc: 36.18 min, Rb2: 38.55 min and Rd: 40.88 min) with those of the standards under the same chromatographic conditions, which showed similar results among the samples of six different batches and among the samples from one batch detected six times within one day. CONCLUSIONS Xinyue capsules have good drug intra-day consistency at room temperature and exhibit a consistent quality between different batches. This study established a reliable method to assess the stability of xinyue capsules, which is suitable for further qualitative analysis and may assist in promoting the safe and effective use of Chinese herbal medicine.
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Affiliation(s)
- Mei Xue
- Center of Cardiology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, 100091, China
| | - Lin Yang
- Center of Cardiology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, 100091, China
| | - Da-zhuo Shi
- Center of Cardiology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, 100091, China.
| | - Christian Radauer
- Molecular Research in Traditional Chinese Medicine Group, Department of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology & Immunology, Medical University of Vienna, Vienna, Austria
| | - Heimo Breiteneder
- Molecular Research in Traditional Chinese Medicine Group, Department of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology & Immunology, Medical University of Vienna, Vienna, Austria
| | - Yan Ma
- Molecular Research in Traditional Chinese Medicine Group, Department of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology & Immunology, Medical University of Vienna, Vienna, Austria
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Domitrović R, Potočnjak I. A comprehensive overview of hepatoprotective natural compounds: mechanism of action and clinical perspectives. Arch Toxicol 2015; 90:39-79. [DOI: 10.1007/s00204-015-1580-z] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Accepted: 08/11/2015] [Indexed: 12/22/2022]
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15
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Chang YH, Kwak HS, Yoo B, Lee Y. Rheological properties, ginsenosides contents, sensory evaluations of Korean red ginseng extracts. Int J Food Sci Technol 2015. [DOI: 10.1111/ijfs.12938] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Yoon Hyuk Chang
- Department of Food and Nutrition; Kyung Hee University; Seoul 130-701 Korea
| | - Han Sub Kwak
- Department of Food Science and Nutrition; Dankook University; Yongin-si 448-701 Korea
| | - Byoungseung Yoo
- Department of Food Science and Biotechnology; Dongguk University; Goyang-si 410-820 Korea
| | - Youngseung Lee
- Department of Food Science and Nutrition; Dankook University; Yongin-si 448-701 Korea
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De Souza LR, Jenkins AL, Jovanovski E, Rahelić D, Vuksan V. Ethanol extraction preparation of American ginseng (Panax quinquefolius L) and Korean red ginseng (Panax ginseng C.A. Meyer): differential effects on postprandial insulinemia in healthy individuals. JOURNAL OF ETHNOPHARMACOLOGY 2015; 159:55-61. [PMID: 25446600 DOI: 10.1016/j.jep.2014.10.057] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Revised: 10/08/2014] [Accepted: 10/27/2014] [Indexed: 06/04/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Ginsenosides are the proposed bioactive constituent of ginseng, especially for the attenuation of postprandial glycemia (PPG). The efficacious proportion of total and specific ginsenosides, remains unknown. Alcohol extraction of whole ginseng root can be used to selectively manipulate the ginsenoside profile with increasing alcohol concentrations producing high yields of total ginsenosides and varying their individual proportions. AIM OF THE STUDY We aimed to compare the acute efficacy of different ethanol-extraction preparations of American ginseng (AG) and Korean red ginseng (KRG), with their whole-root origins, on PPG and insulin parameters in healthy adults. MATERIALS AND METHODS Following an overnight fast, 13 healthy individuals (Gender: 5M:8F, with mean ± SD, age: 28.9 ± 9.2 years, BMI: 26.3 ± 2.7 kg/m(2) and fasting plasma glucose: 4.21 ± 0.04 mmol/L) randomly received 3g of each of the following 10 different ginseng treatments on separate visits: whole root KRG and AG; 30%, 50% or 70% ethanol extracts of KRG and AG and 2 cornstarch placebos. Treatments were consumed 40 min prior to a 50 g oral glucose challenge test with capillary blood samples collected at baseline, 15, 30, 45, 60, 90 and 120 min. Insulin samples were collected at 0, 30, 60 and 120 min. RESULTS There was no difference in attenuation of PPG among the tested ginseng preparations. Measures of Insulin Sensitivity Index (ISI) showed increased insulin sensitivity (IS) with KRG-30% and AG-50% extracts compared to placebo (p<0.05). CONCLUSIONS The insulin sensitizing effects of KRG-30% and AG-50% extracts suggest that other root parts, including other ginsenosides not typically measured, may influence PPG and insulin parameters. There is potential for AG and KRG extracts to modulate IS, an independent predictor of type 2 diabetes.
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Affiliation(s)
- Leanne R De Souza
- Clinical Nutrition and Risk Factor Modification Center and Li Ka Shing Knowledge Institute, St. Michael׳s Hospital, 70 Richmond St. E., Toronto, Ontario, Canada M5C1N8; Department of Nutritional Sciences and Department of Medicine, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada M5S3E2
| | - Alexandra L Jenkins
- Clinical Nutrition and Risk Factor Modification Center and Li Ka Shing Knowledge Institute, St. Michael׳s Hospital, 70 Richmond St. E., Toronto, Ontario, Canada M5C1N8
| | - Elena Jovanovski
- Clinical Nutrition and Risk Factor Modification Center and Li Ka Shing Knowledge Institute, St. Michael׳s Hospital, 70 Richmond St. E., Toronto, Ontario, Canada M5C1N8
| | - Dario Rahelić
- Division of Endocrinology, Diabetes and Metabolic Disease, Dubrava University Hospital, Zagreb, Croatia
| | - Vladimir Vuksan
- Clinical Nutrition and Risk Factor Modification Center and Li Ka Shing Knowledge Institute, St. Michael׳s Hospital, 70 Richmond St. E., Toronto, Ontario, Canada M5C1N8; Department of Nutritional Sciences and Department of Medicine, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada M5S3E2; Division of Endocrinology and Metabolism, St. Michael׳s Hospital, Toronto, Ontario, Canada.
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Pharmacokinetic interactions of herbs with cytochrome p450 and p-glycoprotein. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 2015:736431. [PMID: 25632290 PMCID: PMC4302358 DOI: 10.1155/2015/736431] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Revised: 12/20/2014] [Accepted: 12/20/2014] [Indexed: 11/17/2022]
Abstract
The concurrent use of drugs and herbal products is becoming increasingly prevalent over the last decade. Several herbal products have been known to modulate cytochrome P450 (CYP) enzymes and P-glycoprotein (P-gp) which are recognized as representative drug metabolizing enzymes and drug transporter, respectively. Thus, a summary of knowledge on the modulation of CYP and P-gp by commonly used herbs can provide robust fundamentals for optimizing CYP and/or P-gp substrate drug-based therapy. Herein, we review ten popular medicinal and/or dietary herbs as perpetrators of CYP- and P-gp-mediated pharmacokinetic herb-drug interactions. The main focus is placed on previous works on the ability of herbal extracts and their phytochemicals to modulate the expression and function of CYP and P-gp in several in vitro and in vivo animal and human systems.
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Zhao YN, Wang ZL, Dai JG, Chen L, Huang YF. Preparation and quality assessment of high-purity ginseng total saponins by ion exchange resin combined with macroporous adsorption resin separation. Chin J Nat Med 2015; 12:382-92. [PMID: 24856763 DOI: 10.1016/s1875-5364(14)60048-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2013] [Indexed: 11/15/2022]
Abstract
AIM To prepare high-purity ginseng total saponins from a water decoction of Chinese ginseng root. METHOD Total saponins were efficiently purified by dynamic anion-cation exchange following the removal of hydrophilic impurities by macroporous resin D101. For quality control, ultrahigh-performance liquid chromatography with a charged aerosol detector (CAD) was applied to quantify marker components. The total saponin content was estimated by a colorimetric method using a vanillin-vitriol system and CAD response. RESULTS D201, which consisted of a cross-linked polystyrene matrix and -N(+)(CH3)3 functional groups, was the best of the four anion exchange resins tested. However, no significant difference in cation exchange ability was observed between D001 (strong acid) and D113 (weak acid), although they have different functional groups and matrices. After purification in combination with D101, D201, and D113, the estimated contents of total saponins were 107% and 90% according to the colorimetric method and CAD response, respectively. The total amount of representative ginsenosides Re, Rd, Rg1, and compound K was approximately 22% based on ultrahigh-performance liquid chromatography-CAD quantitative analysis. CONCLUSION These findings suggest that an ion exchange resin, combined with macroporous adsorption resin separation, is a promising and feasible purification procedure for neutral natural polar components.
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Affiliation(s)
- Yu-Nan Zhao
- Key Laboratory of Brain Research, Basic Medical College, Nanjing University of Traditional Chinese Medicine, Nanjing 210046, China.
| | - Zhong-Li Wang
- Key Laboratory of Brain Research, Basic Medical College, Nanjing University of Traditional Chinese Medicine, Nanjing 210046, China
| | - Jian-Guo Dai
- Key Laboratory of Brain Research, Basic Medical College, Nanjing University of Traditional Chinese Medicine, Nanjing 210046, China
| | - Lin Chen
- Key Laboratory of Brain Research, Basic Medical College, Nanjing University of Traditional Chinese Medicine, Nanjing 210046, China
| | - Yu-Fang Huang
- Key Laboratory of Brain Research, Basic Medical College, Nanjing University of Traditional Chinese Medicine, Nanjing 210046, China
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Evaluation of the in vitro/in vivo drug interaction potential of BST204, a purified dry extract of ginseng, and its four bioactive ginsenosides through cytochrome P450 inhibition/induction and UDP-glucuronosyltransferase inhibition. Food Chem Toxicol 2014; 68:117-27. [DOI: 10.1016/j.fct.2014.03.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2014] [Revised: 02/27/2014] [Accepted: 03/01/2014] [Indexed: 11/24/2022]
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Wang JR, Yau LF, Zhang R, Xia Y, Ma J, Ho HM, Hu P, Hu M, Liu L, Jiang ZH. Transformation of ginsenosides from notoginseng by artificial gastric juice can increase cytotoxicity toward cancer cells. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:2558-2573. [PMID: 24555416 DOI: 10.1021/jf405482s] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Multicomponent metabolic profile of notoginseng saponins in artificial gastric juice was qualitatively and quantitatively investigated, showing that ginsenosides were transformed via multiple pathways including deglycosylation, dehydration, hydration, and oxygenation. A total of 83 metabolites was identified by using UPLC-Q-TOF-MS, among which 16 new dammarane glycosides were further characterized by comparing with synthesized authentic compounds. Transformation time-course of notoginseng saponins in artificial gastric juice was quantitatively measured for the first time, showing rapid degradation of primary ginsenosides and concomitant formation of deglycosylation, hydration, and dehydration products. It was further demonstrated that the resultant metabolites exhibited enhanced cytotoxicity toward cancer cells. The extensive metabolism of ginsenosides within a transit time span in stomach, together with the formation of metabolites with diversified chemical structures possessing enhanced biological activities, indicated an important role of transformation in gastric juice in the systematic effects of ginsenosides.
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Affiliation(s)
- Jing-Rong Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology , Macau 00853, China
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Abad Martínez MJ, del Olmo LMB, Benito PB. Interactions Between Natural Health Products and Antiretroviral Drugs. STUDIES IN NATURAL PRODUCTS CHEMISTRY 2014. [DOI: 10.1016/b978-0-444-63430-6.00006-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Identification of immunomodulatory signatures induced by american ginseng in murine immune cells. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2013; 2013:972814. [PMID: 24319490 PMCID: PMC3844258 DOI: 10.1155/2013/972814] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Revised: 09/23/2013] [Accepted: 10/01/2013] [Indexed: 12/20/2022]
Abstract
Background. American ginseng (Panax quinquefolius, AG) has been used for more than 300 years. Some of its claimed benefits can be attributed to the immunomodulatory activities, whose molecular mechanisms are largely unknown. Methods. Murine splenic cells from adult male C57BL/6 (B6) mice were isolated and divided into 4 groups to mimic 4 basic pathophysiological states: (1) normal naïve; (2) normal activated; (3) deficient naïve; (4) deficient activated. Then, different AG extracts were added to all groups for 24 h incubation. MTT proliferation assays were performed to evaluate the phenotypic features of cells. Finally, microarray assays were carried out to identify differentially expressed genes associated with AG exposure. Real-time PCR was performed to validate the expression of selected genes. Results. Microarray data showed that most of gene expression changes were identified in the deficient naïve group, suggesting that the pathophysiological state has major impacts on transcriptomic changes associated with AG exposure. Specifically, this study revealed downregulation of interferon-γ signaling pathway in the deficient group of cells. Conclusion. Our study demonstrated that only specific groups of immune cells responded to AG intervention and immunocompromised cells were more likely regulated by AG treatment.
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Kim HY, Nam WS, Kim SH, Jang HR, Lee MK, Kim TW, Lee SK. Modulatory Effects of Korean Red Ginseng Extract (Panax ginseng C.A. Meyer) on Cytochrome P450 after Oral Administration to Mice for 14 Days. ACTA ACUST UNITED AC 2012. [DOI: 10.5352/jls.2012.22.8.991] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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25
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Herb-drug interactions: Focus on metabolic enzymes and transporters. Arch Pharm Res 2011; 34:1843-63. [DOI: 10.1007/s12272-011-1106-z] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2011] [Revised: 09/06/2011] [Accepted: 09/08/2011] [Indexed: 11/26/2022]
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Wong VKW, Cheung SSF, Li T, Jiang ZH, Wang JR, Dong H, Yi XQ, Zhou H, Liu L. Asian ginseng extract inhibits in vitro and in vivo growth of mouse lewis lung carcinoma via modulation of ERK-p53 and NF-κB signaling. J Cell Biochem 2011; 111:899-910. [PMID: 20665661 DOI: 10.1002/jcb.22778] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Asian ginseng (AG) is the most commonly used medicinal herb in Asian countries. It is often prescribed for cancer patients as a complementary remedy. However, whether AG in fact benefits cancer patients remains unknown because some studies reported that AG facilitates tumor growth, which contradicts its usage as a dietary remedy to cancer patients. In addition, most of research works on ginseng for anti-cancer were using single ginsenoside rather than whole root extracts used in clinics. Thus, intensive studies using the type of ginseng as its clinical form are necessary to validate its benefits to cancer patients. In this study, anti-tumor potency and underlying molecular mechanisms of the ethanol extract of AG (EAG) were examined in mice with Lewis lung carcinoma (LLC-1). We showed that EAG significantly suppressed tumor growth in LLC-1-bearing mice with concomitant down-regulation of PCNA proliferative marker, and it exhibited specific cytotoxicity to cancer cells. EAG also induced MAPK and p53 signaling in LLC-1 cells, which suppressed cyclin B-cdc2 complex and in turn induced G2-M arrest and apoptosis. Although EAG could activate NF-κB signaling, the proteasome inhibitor of MG-132 could effectively prevent NF-κB targeted gene expression induced by EAG and then sensitize LLC-1 cells to induce EAG-mediated apoptosis. Collectively, EAG in a relatively high dose significantly suppressed tumor growth in LLC-1-bearing mice, indicating that AG may benefit lung cancer patients as a dietary supplement. This is the first report demonstrating possible combination of EAG with proteasome inhibitors could be a novel strategy in anti-cancer treatment.
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Affiliation(s)
- Vincent Kam Wai Wong
- Centre for Cancer and Inflammation Research, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Kowloon, Hong Kong, China
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Hao M, Ba Q, Yin J, Li J, Zhao Y, Wang H. Deglycosylated Ginsenosides Are More Potent Inducers of CYP1A1, CYP1A2 and CYP3A4 Expression in HepG2 Cells than Glycosylated Ginsenosides. Drug Metab Pharmacokinet 2011; 26:201-5. [DOI: 10.2133/dmpk.dmpk-10-nt-056] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Leung KW, Wong AST. Pharmacology of ginsenosides: a literature review. Chin Med 2010; 5:20. [PMID: 20537195 PMCID: PMC2893180 DOI: 10.1186/1749-8546-5-20] [Citation(s) in RCA: 344] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2010] [Accepted: 06/11/2010] [Indexed: 11/30/2022] Open
Abstract
The therapeutic potential of ginseng has been studied extensively, and ginsenosides, the active components of ginseng, are shown to be involved in modulating multiple physiological activities. This article will review the structure, systemic transformation and bioavailability of ginsenosides before illustration on how these molecules exert their functions via interactions with steroidal receptors. The multiple biological actions make ginsenosides as important resources for developing new modalities. Yet, low bioavailability of ginsenoside is one of the major hurdles needs to be overcome to advance its use in clinical settings.
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Affiliation(s)
- Kar Wah Leung
- Department of Biology, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong SAR, PR China
| | - Alice Sze-Tsai Wong
- School of Biological Sciences, University of Hong Kong, Pokfulam Road, Hong Kong SAR, PR China
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Saruwatari J, Nakagawa K, Shindo J, Nachi S, Echizen H, Ishizaki T. The in-vivo effects of sho-saiko-to, a traditional Chinese herbal medicine, on two cytochrome P450 enzymes (1A2 and 3A) and xanthine oxidase in man. J Pharm Pharmacol 2010; 55:1553-9. [PMID: 14713367 DOI: 10.1211/0022357022061] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Abstract
The Chinese herbal medicine sho-saiko-to is a mixture of seven herbal components (Bupleurum root, Pinellia tuber, Scutellaria root, Jujube fruit, Ginseng root, Glycyrrhiza root and Ginger rhizome) that is widely administered to patients with chronic hepatitis in Japan. We assessed the effects of sho-saiko-to on the activity of cytochrome P450 (CYP) 1A2, CYP3A and xanthine oxidase (XO) in man. Twenty-six healthy subjects were studied to evaluate their baseline activity of CYP1A2 and XO by the respective urinary metabolic ratios of an 8-h urine sample after an oral 150-mg dose of caffeine and of CYP3A by a urinary excretion ratio of 6β-hydroxycortisol (6β-HC) to free cortisol (FC). Thereafter, the subjects received a twice-daily 2.5-g dose of sho-saiko-to for five days, and underwent the caffeine test on day 1 and day 5. The mean activity of CYP1A2 decreased by 16% on both day 1 and day 5 compared with the baseline (P = 0.001). The mean activity of XO also significantly decreased by 25% on day 1 and 20% on day 5 (P < 0.0001) compared with the baseline value. The activity of CYP3A tended to be lower on day 5 than the baseline (P = 0.146). It is concluded that sho-saiko-to reduces CYP1A2 and XO activity in man.
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Affiliation(s)
- Junji Saruwatari
- Division of Clinical Pharmacology, Graduate School of Pharmaceutical Sciences, Faculty of Medical and Pharmaceutical Sciences, Kumamoto University, Oe-honmachi 5-1, Kumamoto 862-0973, Japan
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Saruwatari J, Hisaeda S, Higa Y, Tomiyasu Y, Nakagawa K, Ishizaki T. The in-vivo effect of bakumondo-to (TJ-29), a traditional Japanese medicine used for treatment of chronic airway disease, on cytochrome P450 1A2, xanthine oxidase and N-acetyltransferase 2 activity in man. J Pharm Pharmacol 2010; 56:1171-7. [PMID: 15324486 DOI: 10.1211/0022357044094] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Abstract
In Japan, patients with chronic airway disease are administered bakumondo-to (TJ-29), a mixture of six herbal components. We have assessed the effects of TJ-29 on the activities of cytochrome P450 (CYP) 1A2, xanthine oxidase and N-acetyltransferase 2 in 26 healthy subjects under a double-blind, randomized, placebo-controlled cross-over study design. The baseline activities of the three enzymes were assessed by the respective urinary metabolic ratios of an 8-h urine sample after an oral 150-mg dose of caffeine. Thereafter, the subjects received a thrice-daily 3.0-g dose of TJ-29 or placebo for seven days, and underwent the same caffeine test on the post-dose days 1 and 7. No statistically significant difference was observed in the activity of the three enzymes between those at baseline, and on day 1 after dosing with TJ-29 or placebo. The mean activity of CYP1A2, xanthine oxidase and N-acetyltransferase 2 tended to be lower on day 7 after dosing with TJ-29 compared with those at baseline and on day 7 after dosing with placebo. However, these changes were not statistically significant in CYP1A2 (P=0.120), xanthine oxidase (P=0.123) or N-acetyltransferase 2 (P=0.056). In conclusion, TJ-29 did not appear to substantially affect the activity of CYP1A2, xanthine oxidase or N-acetyltransferase 2 in man.
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Affiliation(s)
- Junji Saruwatari
- Division of Pharmacology and Therapeutics, Graduate School of Medical and Pharmaceutical Sciences, Kumamoto University, Oe-honmachi 5-1, Kumamoto 862-0973, Japan
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Foti RS, Pearson JT, Rock DA, Wahlstrom JL, Wienkers LC. In Vitro Inhibition of Multiple Cytochrome P450 Isoforms by Xanthone Derivatives from Mangosteen Extract. Drug Metab Dispos 2009; 37:1848-55. [DOI: 10.1124/dmd.109.028043] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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32
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Zhang YY, Yang L. Interactions between human cytochrome P450 enzymes and steroids: physiological and pharmacological implications. Expert Opin Drug Metab Toxicol 2009; 5:621-9. [DOI: 10.1517/17425250902967648] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Induction of cytochrome P450 1A1 expression by ginsenoside Rg1 and Rb1 in HepG2 cells. Eur J Pharmacol 2008; 601:73-8. [PMID: 19022240 DOI: 10.1016/j.ejphar.2008.10.057] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2008] [Revised: 10/14/2008] [Accepted: 10/31/2008] [Indexed: 01/01/2023]
Abstract
Transcriptional activation of the human CYP1A1 gene (coding for cytochrome P450 1A1) is mediated by the aryl hydrocarbon receptor. In the present study we have examined interaction of the ginsenoside Rg1 and Rb1 with the carcinogen activation pathway mediated by the aryl hydrocarbon receptor in HepG2 cells. RT-PCR was used to determine the CYP1A1 mRNA levels. The results showed that in HepG2 cells CYP1A1 mRNA expression was significantly increased in a concentration- and time- dependent manner by ginsenoside Rg1 and Rb1. Ginsenoside Rg1 and Rb1 activated the DNA-binding capacity of the aryl hydrocarbon receptor for the xenobiotic responsive element of CYP1A1 as measured by the electrophoretic-mobility shift assay (EMSA). Rg1 and Rb1 were able to activate the ability of the aryl hydrocarbon receptor to bind to an oligonucleotide containing the xenobiotic-responsive element (XRE) of the cyp1a1 promoter. These results indicate that Rg1 and Rb1's effects on CYP1A1 induction are mediated by the aryl hydrocarbon receptor. Since CYP1A1 and aryl hydrocarbon receptor play important roles in carcinogenesis, development, differentiation and many other essential physiological functions, these results suggest that the chemopreventive effect of Panax ginseng may be due, in part, to ginsenoside Rg1 and Rb1's ability to compete with aryl hydrocarbons for both the aryl hydrocarbon receptor and CYP1A1. Rg1 and Rb1 may thus be natural ligands and substrates of the aryl hydrocarbon receptor or have relationship with aryl hydrocarbon receptor pathway. These properties might be of help for future studies in P. ginseng and chemoprevention in chemical-induced cancer.
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Structure-activity relationship and substrate-dependent phenomena in effects of ginsenosides on activities of drug-metabolizing P450 enzymes. PLoS One 2008; 3:e2697. [PMID: 18628990 PMCID: PMC2442655 DOI: 10.1371/journal.pone.0002697] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2008] [Accepted: 06/19/2008] [Indexed: 11/20/2022] Open
Abstract
Ginseng, a traditional herbal medicine, may interact with several co-administered drugs in clinical settings, and ginsenosides, the major active components of ginseng, may be responsible for these ginseng-drug interactions (GDIs). Results from previous studies on ginsenosides' effects on human drug-metabolizing P450 enzymes are inconsistent and confusing. Herein, we first evaluated the inhibitory effects of fifteen ginsenosides and sapogenins on human CYP1A2, CYP2C9, CYP2C19, CYP2D6 and CYP3A4 enzymes by using commercially available fluorescent probes. The structure-activity relationship of their effects on the P450s was also explored and a pharmacophore model was established for CYP3A4. Moreover, substrate-dependent phenomena were found in ginsenosides' effects on CYP3A4 when another fluorescent probe was used, and were further confirmed in tests with conventional drug probes and human liver microsomes. These substrate-dependent effects of the ginsenosides may provide an explanation for the inconsistent results obtained in previous GDI reports.
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Guay DRP. Rasagiline (TVP-1012): a new selective monoamine oxidase inhibitor for Parkinson's disease. ACTA ACUST UNITED AC 2007; 4:330-46. [PMID: 17296539 DOI: 10.1016/j.amjopharm.2006.12.001] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/21/2006] [Indexed: 01/01/2023]
Abstract
OBJECTIVE This article reviews the chemistry, pharmacodynamics, pharmacokinetics, clinical efficacy, tolerability, drug-interaction potential, indications, dosing, and potential role of rasagiline mesylate, a new selective monoamine oxidase (MAO) type B (MAO-B) inhibitor, in the treatment of Parkinson's disease. METHODS A MEDLINE/PUBMED search (1986 through September 2006) was conducted to identify studies involving rasagiline written in English. Additional references were obtained from the bibliographies of these studies. All studies evaluating any aspect of rasagiline, including in vitro, in vivo (animal), and human studies, were reviewed. RESULTS Rasagiline mesylate was developed with the goal of producing a selective MAO-B inhibitor that is not metabolized to (presumed) toxic metabolites (eg, amphetamine and methamphetamine, which are byproducts of the metabolism of selegiline, another selective MAO-B inhibitor). In vitro and in vivo data have confirmed the drug's selectivity for MAO-B. Rasagiline is almost completely eliminated by oxidative metabolism (catalyzed by cytochrome P-450 [CYP] isozyme 1A2) followed by renal excretion of conjugated parent compound and metabolites. Drug clearance is sufficiently slow to allow once-daily dosing. Several studies have documented its efficacy as monotherapy for early-stage disease and as adjunctive therapy in L-dopa recipients with motor fluctuations. As monotherapy, rasagiline is well tolerated with an adverse-effect profile similar to that of placebo. As adjunctive therapy, it exhibits the expected adverse effects of dopamine excess, which can be ameliorated by reducing the L-dopa dosage. CYP1A2 inhibitors slow the elimination of rasagiline and mandate dosage reduction. Hepatic impairment has an analogous effect. The recommended dosage regimens for monotherapy and adjunctive therapy are 1 and 0.5 mg PO QD, respectively. CONCLUSIONS Despite the well-documented selectivity of rasagiline, the manufacturer recommends virtually all of the dietary (vis-à-vis tyramine) and drug restrictions of the nonselective MAO inhibitors. Although useful, selective MAO-B inhibitors have a limited role in Parkinson's disease. Of greater interest is the potential neuroprotective effect of rasagiline and its major metabolite, 1(R)-aminoindan, which may have great utility in a wide variety of neurodegenerative disorders of aging. In addition, bifunctional molecules combining selective MAO-B inhibition (based on the active moiety of rasagiline) with acetylcholinesterase inhibition or iron chelation may eventually be useful in Alzheimer's disease.
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Affiliation(s)
- David R P Guay
- Department of Experimental and Clinical Pharmacology, College of Pharmacy, University of Minnesota, Minneapolis, Minnesota 55455, USA.
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He N, Xie HG, Collins X, Edeki T, Yan Z. EFFECTS OF INDIVIDUAL GINSENOSIDES, GINKGOLIDES AND FLAVONOIDS ON CYP2C19 AND CYP2D6 ACTIVITY IN HUMAN LIVER MICROSOMES. Clin Exp Pharmacol Physiol 2006; 33:813-5. [PMID: 16922812 DOI: 10.1111/j.1440-1681.2006.04445.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
1. The effects of four individual ginsenosides (Rb1, Rb2, Rc and Rd), two ginkgolides (A and B) and one flavonoid (quercetin) on CYP2C19-dependent S-mephenytoin 4 cent-hydroxylation and CYP2D6-mediated bufuralol 1 cent-hydroxylation were evaluated in human liver microsomes. 2. Increasing concentrations of each test compound were added to microsomal incubation mixtures containing a well-characterized marker substrate (S-mephenytoin for CYP2C19 or bufuralol for CYP2D6) to determine their IC(50) values (compound concentration yielding 50% inhibition of a marker enzyme activity), which were estimated by graphical inspection. 3. For CYP2C19, the IC(50) values were 46, 46 and 62 micromol/L for ginsenoside Rd, quercetin and ginsenoside Rb2, respectively, whereas only ginsenoside Rd had an IC(50) value of 57 micromol/L for CYP2D6. 4. The data suggest that the tested compounds are not likely to inhibit the metabolism of the concurrent use of a given drug whose primary route of elimination is through CYP2C19 or CYP2D6.
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Affiliation(s)
- Nu He
- Department of Pharmacology and Toxicology, Morehouse School of Medicine, Atlanta, Georgia 30310-1458, USA.
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Chang TKH, Chen J, Yeung EYH. Effect of Ginkgo biloba extract on procarcinogen-bioactivating human CYP1 enzymes: Identification of isorhamnetin, kaempferol, and quercetin as potent inhibitors of CYP1B1. Toxicol Appl Pharmacol 2006; 213:18-26. [PMID: 16226778 DOI: 10.1016/j.taap.2005.09.007] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2005] [Revised: 09/05/2005] [Accepted: 09/11/2005] [Indexed: 10/25/2022]
Abstract
In the present study, we investigated the effect of Ginkgo biloba extracts and some of its individual constituents on the catalytic activity of human cytochrome P450 enzymes CYP1B1, CYP1A1, and CYP1A2. G. biloba extract of known abundance of terpene trilactones and flavonol glycosides inhibited 7-ethoxyresorufin O-dealkylation catalyzed by human recombinant CYP1B1, CYP1A1, and CYP1A2, and human liver microsomes, with apparent Ki values of 2 +/- 0.3, 5 +/- 0.5, 16 +/- 1.4, and 39 +/- 1.2 microg/ml (mean +/- SE), respectively. In each case, the mode of inhibition was of the mixed type. Bilobalide, ginkgolides A, B, C, and J, quercetin 3-O-rutinoside, kaempferol 3-O-rutinoside, and isorhamentin 3-O-rutinoside were not responsible for the inhibition of CYP1 enzymes by G. biloba extract, as determined by experiments with these individual chemicals at the levels present in the extract. In contrast, the aglycones of quercetin, kaempferol, and isorhamentin inhibited CYP1B1, CYP1A1, and CYP1A2. Among the three flavonol aglycones, isorhamentin was the most potent in inhibiting CYP1B1 (apparent Ki = 3 +/- 0.1 nM), whereas quercetin was the least potent in inhibiting CYP1A2 (apparent Ki = 418 +/- 50 nM). The mode of inhibition was competitive, noncompetitive, or mixed, depending on the enzyme and the flavonol. G. biloba extract also reduced benzo[a]pyrene hydroxylation, and the effect was greater with CYP1B1 than with CYP1A1 as the catalyst. Overall, our novel findings indicate that G. biloba extract and the flavonol aglycones isorhamnetin, kaempferol, and quercetin preferentially inhibit the in vitro catalytic activity of human CYP1B1.
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Affiliation(s)
- Thomas K H Chang
- Faculty of Pharmaceutical Sciences, The University of British Columbia, 2146 East Mall, Vancouver, BC, Canada V6T 1Z3.
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Liu Y, Zhang JW, Li W, Ma H, Sun J, Deng MC, Yang L. Ginsenoside Metabolites, Rather Than Naturally Occurring Ginsenosides, Lead to Inhibition of Human Cytochrome P450 Enzymes. Toxicol Sci 2006; 91:356-64. [PMID: 16547074 DOI: 10.1093/toxsci/kfj164] [Citation(s) in RCA: 100] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
There is still an argument about ginseng-prescription drug interactions. To evaluate the influence on cytochrome P450 (P450) activities of ginseng in the present study, the influence on P450 activities of naturally occurring ginsenosides and their degradation products in human gut lumen was assayed by using human liver microsomes and cDNA-expressed CYP3A4. The results showed that the naturally occurring ginsenosides exhibited no inhibition or weak inhibition against human CYP3A4, CYP2D6, CYP2C9, CYP2A6, or CYP1A2 activities; however, their main intestinal metabolites demonstrated a wide range of inhibition of the P450-mediated metabolism. There was no mechanism-based inhibition found on these P450 isoforms. It is noteworthy that Compound K, protopanaxadiol (Ppd), and protopanaxatriol (Ppt) all exhibited moderate inhibition against CYP2C9 activity, and Ppd and Ppt also exhibited potent competitive inhibition against CYP3A4 activity. We suggest that after oral administration, naturally occurring ginsenosides might influence hepatic P450 activity in vivo via their intestinal metabolites.
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Affiliation(s)
- Yong Liu
- Laboratory of Pharmaceutical Resource Discovery, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People's Republic of China
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Abstract
A majority of potential radioprotective synthetic compounds have demonstrated limited clinical application owing to their inherent toxicity, and thus, the seeking of naturally occurring herbal products, such as ginseng, for their radioprotective capability has become an attractive alternative. In general, ginseng refers to the roots of the species of the genus Panax. As a medicinal herb, ginseng has been widely used in traditional Chinese medicine for its wide spectrum of medicinal effects, such as tonic, immunomodulatory, antimutagenic, adaptogenic and antiaging activities. Many of its medicinal effects are attributed to the triterpene glycosides known as ginsenosides (saponins). This review addresses the issue of the radioprotective effects of ginseng on mammalian cells both in vitro and in vivo. Results indicate that the water-soluble extract of whole ginseng appears to give a better protection against radiation-induced DNA damage than does the isolated ginsenoside fractions. Since free radicals play an important role in radiation-induced damage, the underlying radioprotective mechanism of ginseng could be linked, either directly or indirectly, to its antioxidative capability by the scavenging free radicals responsible for DNA damage. In addition, ginseng's radioprotective potential may also be related to its immunomodulating capabilities. Ginseng is a natural product with worldwide distribution, and in addition to its antitumor properties, ginseng appears to be a promising radioprotector for therapeutic or preventive protocols capable of attenuating the deleterious effects of radiation on human normal tissue, especially for cancer patients undergoing radiotherapy.
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Affiliation(s)
- Tung-Kwang Lee
- Department of Radiation Oncology, Leo W.Jenkins Cancer Center, Brody School of Medicine at East Carolina University, Greenville, NC 27858, USA.
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Yu CT, Chen J, Teng XW, Tong V, Chang TKH. Lack of evidence for induction of CYP2B1, CYP3A23, and CYP1A2 gene expression by Panax ginseng and Panax quinquefolius extracts in adult rats and primary cultures of rat hepatocytes. Drug Metab Dispos 2004; 33:19-22. [PMID: 15466162 DOI: 10.1124/dmd.104.001917] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Treatment of rats with a single oral dose (10-30 mg/kg) of a crude Panax ginseng extract of unknown ginsenoside content has been reported to modestly increase hepatic microsomal cytochrome P450-mediated aminopyrine N-demethylation activity. In the present study, we compared the effect of P. ginseng and Panax quinquefolius extracts on rat hepatic CYP2B1, CYP3A23, and CYP1A2 gene expression. Adult male Sprague-Dawley rats (250-275 g) received, by oral gavage or i.p., P. ginseng extract [4% (w/w) total ginsenosides; 30 or 100 mg/kg/day for 1 or 4 days], P. quinquefolius extract [10% (w/w) total ginsenosides; 100 or 400 mg/kg/day for 21 consecutive days), or an equivalent volume (2 ml/kg) of the vehicle (0.9% NaCl or 0.3% carboxymethylcellulose) and were terminated 1 day after the last dose. P. ginseng and P. quinquefolius extracts did not affect body weight gain, absolute or relative liver weight, hepatic CYP2B1, CYP3A23, or CYP1A2 mRNA expression, or microsomal CYP2B-mediated 7-benzyloxyresorufin O-dealkylation (BROD) or CYP1A-mediated 7-ethoxyresorufin O-dealkylation (EROD) activity. In contrast, results from positive control experiments indicated that phenobarbital increased CYP2B1 mRNA and BROD activity, dexamethasone increased CYP3A23 mRNA, and beta-naphthoflavone increased CYP1A2 mRNA and EROD activity levels. Treatment of primary cultures of rat hepatocytes with either of the ginseng extracts (0.1-1000 microg/ml for 2 days) also did not affect CYP2B1 or CYP3A23 mRNA expression. Overall, our data indicate that P. ginseng and P. quinquefolius extracts do not increase rat hepatic CYP2B1, CYP3A23, or CYP1A2 gene expression.
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Affiliation(s)
- Chia-Ting Yu
- Faculty of Pharmaceutical Sciences, The University of British Columbia, 2146 East Mall, Vancouver, B. C. V6T 1Z3, Canada
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Sparreboom A, Cox MC, Acharya MR, Figg WD. Herbal remedies in the United States: potential adverse interactions with anticancer agents. J Clin Oncol 2004; 22:2489-503. [PMID: 15197212 DOI: 10.1200/jco.2004.08.182] [Citation(s) in RCA: 274] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
PURPOSE Interest in the use of herbal products has grown dramatically in the Western world. Recent estimates suggest an overall prevalence for herbal preparation use of 13% to 63% among cancer patients. With the narrow therapeutic range associated with most anticancer drugs, there is an increasing need for understanding possible adverse drug interactions in medical oncology. METHODS In this article, a literature overview is provided of known or suspected interactions of the 15 best-selling herbs in the United States with conventional allopathic therapies for cancer. RESULTS Herbs with the potential to significantly modulate the activity of drug-metabolizing enzymes (notably cytochrome p450 isozymes) and/or the drug transporter P-glycoprotein include garlic (Allium sativum), ginkgo (Ginkgo biloba), echinacea (Echinacea purpurea), ginseng (Panax ginseng), St John' s wort (Hypericum perforatum), and kava (Piper methysticum). All of these products participate in potential pharmacokinetic interactions with anticancer drugs. CONCLUSION It is suggested that health care professionals and consumers should be aware of the potential for adverse interactions with these herbs, question their patients on their use of them, especially among patients whose disease is not responding to treatments as expected, and urge patients to avoid herbs that could confound their cancer care.
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Affiliation(s)
- Alex Sparreboom
- Clinical Pharmacology Research Core, Medical Oncology Clinical Research Unit, National Cancer Institute, Bethesda, Maryland 20892, USA.
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Liu Y, Li W, Li P, Deng MC, Yang SL, Yang L. The Inhibitory Effect of Intestinal Bacterial Metabolite of Ginsenosides on CYP3A Activity. Biol Pharm Bull 2004; 27:1555-60. [PMID: 15467194 DOI: 10.1248/bpb.27.1555] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The intestinal bacterial metabolites of ginsenosides are responsible for the main pharmacological activities of ginseng. The purpose of this study was to find whether these metabolites influence hepatic metabolic enzymes and to predict the potential for ginseng-prescription drug interactions. Utilizing the probe reaction of CYP3A activity, testosterone 6beta-hydroxylation, the effects of derivatives of 20(S)-protopanaxadiol and 20(S)-protopanaxatriol families on CYP3A activity in rat liver microsomes were assayed. Our results showed that ginsenosides from the 20(S)-protopanaxadiol and 20(S)-protopanaxatriol family including Rb1, Rb2, Rc, Compound-K, Re, and Rg1 had no inhibitory effect, whereas Rg2, 20(S)-panaxatriol and 20(S)-protopanaxatriol exhibited competitive inhibitory activity against CYP3A activity in these microsomes with the inhibition constants (Ki) of 86.4+/-0.8 microM, 1.7+/-0.1 microM, and 3.2+/-0.2 microM, respectively. This finding demonstrates that differences in their chemical structure might influence the effects of ginsenosides on CYP3A activity and that ginseng-derived products might have potential for significant ginseng-drug interactions.
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Affiliation(s)
- Yong Liu
- Laboratory of Pharmaceutical Resource Discovery, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, PR China
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Tawab MA, Bahr U, Karas M, Wurglics M, Schubert-Zsilavecz M. Degradation of ginsenosides in humans after oral administration. Drug Metab Dispos 2003; 31:1065-71. [PMID: 12867496 DOI: 10.1124/dmd.31.8.1065] [Citation(s) in RCA: 342] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Even though the degradation of ginsenosides has been thoroughly studied in animals and in vitro using acids, enzymes, and intestinal bacteria, knowledge concerning the systemic availability of ginsenosides and their degradation products in humans is generally lacking. Therefore, the attention in this article is focused on the identification of ginsenosides and their hydrolysis products reaching the systemic circulation in man. This is of great importance in understanding clinical effects, preventing herb-drug interactions, and optimizing the biopharmaceutical properties of ginseng preparations. Using a sensitive mass spectrometric method, which is specific for the identification of ginsenosides in complex biological matrices, the degradation pathway of ginsenosides in the gastrointestinal tract of humans could be elucidated following the oral administration of ginseng. Within the frame of a pilot study, human plasma and urine samples of two subjects were screened for ginsenosides and their possible degradation products. In general, the urine data coincided well with the plasma data. In both volunteers the same hydrolysis products, which are not originally present in the Ginsana extract (Pharmaton S.A., Lugano, Switzerland) ingested, were identified in plasma and urine. It was shown that two hydrolysis products of the protopanaxatriol ginsenosides, namely G-Rh1 and G-F1 may reach the systemic circulation. In addition, compound-K, the main intestinal bacterial metabolite of the protopanaxadiol ginsenosides, was detected in plasma and urine. These products are probably responsible for the action of ginseng in humans. In opposition to previous reports, G-Rb1 was identified in plasma and urine of one subject.
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Affiliation(s)
- Mona Abdel Tawab
- Institute of Pharmaceutical Chemistry, Johann Wolfgang Goethe University, Frankfurt, Germany
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Abstract
Panax ginseng is a plant that has been used in traditional medicine in China for thousands of years. It is used as a general tonic or adaptogen with chronically ill patients and is frequently featured in traditional medicine prescriptions from China, Japan, and Korea used by cancer patients. The putative active compounds are the ginsenosides, of which there are more than two dozen. These compounds are found in both Panax ginseng and in other Panax species that are used in herbal medicine. Analysis of ginsenosides is being used in developing quality control assessments for ginseng, which has frequently been adulterated due to its high cost; many currently available standardized extracts do appear to contain the amounts of ginsenosides listed on package labeling. The toxicity of ginseng appears to be low: some of the reports of toxic episodes of ginseng may actually pertain to other components of multicomponent preparations. Very low incidence of toxicity has been observed in ginseng clinical trials using well-characterized preparations. Numerous pharmacological activities of ginseng and the ginsenosides have been explored: the authors review here the activities relating to cancer. Immune system modulation, antistress activities, and antihyperglycemic activities are among the most notable features of ginseng noted in laboratory and clinical analyses. Much testing has been done in humans to explore ginseng's purported antifatigue properties, but this area remains controversial. A number of investigations point to antitumor properties and other pharmacological activities related to cancer, but no trials have yet confirmed a clinically significant anticancer activity. Cancer patients may empirically find ginseng to be useful when they are fatigued, although clinical trials should be conducted to confirm its benefits.
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Affiliation(s)
- Yuan S Chang
- School of Pharmacy, China Medical College, Taichung, Taiwan, Republic of China
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Abstract
A resurgence in the use of medical herbs in the Western world, and the co-use of modern and traditional therapies is becoming more common. Thus there is the potential for both pharmacokinetic and pharmacodynamic herb-drug interactions. For example, systems such as the cytochrome P450 (CYP) may be particularly vulnerable to modulation by the multiple active constituents of herbs, as it is well known that the CYPs are subject to induction and inhibition by exposure to a wide variety of xenobiotics. Using in vitro, in silico, and in vivo approaches, many herbs and natural compounds isolated from herbs have been identified as substrates, inhibitors, and/or inducers of various CYP enzymes. For example, St. John's wort is a potent inducer of CYP3A4, which is mediated by activating the orphan pregnane X receptor. It also contains ingredients that inhibit CYP1A2, CYP2C9, CYP2C19, CYP2D6, and CYP3A4. Many other common medicinal herbs also exhibited inducing or inhibiting effects on the CYP system, with the latter being competitive, noncompetitive, or mechanism-based. It appears that the regulation of CYPs by herbal products complex, depending on the herb type, their administration dose and route, the target organ and species. Due to the difficulties in identifying the active constituents responsible for the modulation of CYP enzymes, prediction of herb-drug metabolic interactions is difficult. However, herb-CYP interactions may have important clinical and toxicological consequences. For example, induction of CYP3A4 by St. John's wort may partly provide an explanation for the enhanced plasma clearance of a number of drugs, such as cyclosporine and innadivir, which are known substrates of CYP3A4, although other mechanisms including modulation of gastric absorption and drug transporters cannot be ruled out. In contrast, many organosulfur compounds, such as diallyl sulfide from garlic, are potent inhibitors of CYP2E1; this may provide an explanation for garlic's chemoproventive effects, as many mutagens require activation by CYP2E1. Therefore, known or potential herb-CYP interactions exist, and further studies on their clinical and toxicological roles are warranted. Given that increasing numbers of people are exposed to a number of herbal preparations that contain many constituents with potential of CYP modulation, high-throughput screening assays should be developed to explore herb-CYP interactions.
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Affiliation(s)
- Shufeng Zhou
- Department of Pharmacy, Faculty of Science, National University of Singapore, Republic of Singapore.
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