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Zamary KM, Bruno RS. Advances in nutrition approaches to support vascular and gut health: 2023 David Kritchevsky Award winners. Nutr Res 2024; 124:111-115. [PMID: 38574579 DOI: 10.1016/j.nutres.2024.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 03/06/2024] [Accepted: 03/07/2024] [Indexed: 04/06/2024]
Affiliation(s)
- Kaitlyn M Zamary
- Human Nutrition Program, The Ohio State University, Columbus, Ohio 43210
| | - Richard S Bruno
- Human Nutrition Program, The Ohio State University, Columbus, Ohio 43210.
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Bruno RS, Zamary K. Reemergence from the pandemic, annual awards, and editorial office updates: from the desk of the Editor-in-Chief, Nutrition Research. Nutr Res 2024; 123:131-136. [PMID: 37474411 DOI: 10.1016/j.nutres.2023.05.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/22/2023]
Affiliation(s)
- Richard S Bruno
- Human Nutrition Program, The Ohio State University, Columbus, Ohio 43210.
| | - Katie Zamary
- Human Nutrition Program, The Ohio State University, Columbus, Ohio 43210
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Chen Y, Liu M, Wen J, Yang Z, Li G, Cao Y, Sun L, Ren X. Panax japonicus C.A. Meyer: a comprehensive review on botany, phytochemistry, pharmacology, pharmacokinetics and authentication. Chin Med 2023; 18:148. [PMID: 37950271 PMCID: PMC10636818 DOI: 10.1186/s13020-023-00857-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 10/31/2023] [Indexed: 11/12/2023] Open
Abstract
BACKGROUND Panax japonicus C.A. Meyer (Zhujieshen) is widely used in traditional medicine as a tonic hemostatic and anti-inflammatory agent in China, Japan, and Korea. Furthermore, it is used as an important substitute for ginseng roots by minority ethnic groups in China. The purpose of this review is to summarize the latest research on Zhujieshen in recent years, aiming at providing a systematic overview of the current knowledge, and perspectives for future research and exploitation. MAIN BODY This review examines the research advances in botanical profile, phytochemicals, pharmacology, pharmacokinetics, and authentication of Zhujieshen. Various compounds have been reported as active components, mainly including saponins, volatile oils, and polysaccharides. Pharmacological investigations have demonstrated that Zhujieshen is an important herb with significant bioactivities, such as anti-inflammatory, hepato-protective, cardio-protective, neuro-protective, anti-tumor, anti-oxidant, anti-thrombotic and immunomodulatory activities. CONCLUSION Currently, research on Zhujieshen is in the preliminary stages, and further research is required to understand the active compounds present and mechanisms of action. We hope that this comprehensive review of Zhujieshen will serve as a background for future research and exploitation.
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Affiliation(s)
- Yuan Chen
- School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Meiqi Liu
- School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Jinli Wen
- School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Zijie Yang
- School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Guohui Li
- School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Ying Cao
- School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Lili Sun
- School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China.
| | - Xiaoliang Ren
- School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
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Shah MA, Abuzar SM, Ilyas K, Qadees I, Bilal M, Yousaf R, Kassim RMT, Rasul A, Saleem U, Alves MS, Khan H, Blundell R, Jeandet P. Ginsenosides in cancer: Targeting cell cycle arrest and apoptosis. Chem Biol Interact 2023; 382:110634. [PMID: 37451663 DOI: 10.1016/j.cbi.2023.110634] [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: 03/27/2023] [Revised: 07/04/2023] [Accepted: 07/12/2023] [Indexed: 07/18/2023]
Abstract
Despite the existence of extensive clinical research and novel therapeutic treatments, cancer remains undefeated and the significant cause of death worldwide. Cancer is a disease in which growth of cells goes out of control, being also able to invade other parts of the body. Cellular division is strictly controlled by multiple checkpoints like G1/S and G2/M which, when dysregulated, lead to uncontrollable cell division. The current remedies which are being utilized to combat cancer are monoclonal antibodies, chemotherapy, cryoablation, and bone marrow transplant etc. and these have also been greatly disheartening because of their serious adverse effects like hypotension, neuropathy, necrosis, leukemia relapse and many more. Bioactive compounds derived from natural products have marked the history of the development of novel drug therapies against cancer among which ginsenosides have no peer as they target several signaling pathways, which when abnormally regulated, lead to cancer. Substantial research has reported that ginsenosides like Rb1, Rb2, Rb3, Rc, Rd, Rg3, Rh2 etc. can prevent and treat cancer by targeting different pathways and molecules by induction of autophagy, neutralizing ROS, induction of cancerous cell death by controlling the p53 pathway, modulation of miRNAs by decreasing Smad2 expression, regulating Bcl-2 expression by normalizing the NF-Kb pathway, inhibition of inflammatory pathways by decreasing the production of cytokines like IL-8, causing cell cycle arrest by restricting cyclin E1 and CDC2, and induction of apoptosis during malignancy by decreasing β-catenin levels etc. In this review, we have analyzed the anti-cancer therapeutic potential of various ginsenoside compounds in order to consider their possible use in new strategies in the fight against cancer.
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Affiliation(s)
| | - Syed Muhammad Abuzar
- Faculty of Pharmaceutical Sciences, Government College University, Faisalabad, Pakistan
| | - Kainat Ilyas
- Faculty of Pharmaceutical Sciences, Government College University, Faisalabad, Pakistan
| | - Irtaza Qadees
- Faculty of Pharmaceutical Sciences, Government College University, Faisalabad, Pakistan
| | - Momna Bilal
- Faculty of Pharmaceutical Sciences, Government College University, Faisalabad, Pakistan
| | - Rimsha Yousaf
- Faculty of Pharmaceutical Sciences, Government College University, Faisalabad, Pakistan
| | | | - Azhar Rasul
- Department of Zoology, Government College University, Faisalabad, Pakistan
| | - Uzma Saleem
- Department of Pharmacology, Faculty of Pharmaceutical Sciences, Government College University, Faisalabad, Pakistan
| | - Maria Silvana Alves
- Laboratory of Cellular and Molecular Bioactivity, Department of Pharmaceutical Sciences, Faculty of Pharmacy, Federal University of Juiz de Fora, Minas Gerais, Brazil
| | - Haroon Khan
- Department of Pharmacy, Abdul Wali Khan University, Mardan, Pakistan
| | - Renald Blundell
- Department of Physiology and Biochemistry, Faculty of Medicine, University of Malta, Msida, MSD2080, Malta; Centre for Molecular Medicine and Biobanking, University of Malta, MSD2080 Imsida, Malta
| | - Philippe Jeandet
- University of Reims, Research Unit Induced Resistance and Plant Bioprotection USC INRAe 1488 Department of Biology and Biochemistry, Faculty of Sciences, 51100, Reims, France.
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Wang XJ, Xie Q, Liu Y, Jiang S, Li W, Li B, Wang W, Liu CX. Panax japonicus and chikusetsusaponins: A review of diverse biological activities and pharmacology mechanism. CHINESE HERBAL MEDICINES 2021; 13:64-77. [PMID: 36117758 PMCID: PMC9476776 DOI: 10.1016/j.chmed.2020.12.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 02/13/2020] [Accepted: 07/10/2020] [Indexed: 12/18/2022] Open
Abstract
Panax japonicus, which in the Tujia dialect is known as “Baisan Qi” and “Zhujieshen”, is a classic “qi” drug of Tujia ethnomedicine and it has unique effects on disease caused by “qi” stagnation and blood stasis. This paper serves as the basis of further scientific research and development of Panax japonicus. The pharmacology effects of molecular pharmacology were discussed and summarized. P. japonicus plays an important role on several diseases, such as rheumatic arthritis, cancer, cardiovascular agents, and this review provides new insights into P. japonicus as promising agents to substitute ginseng and notoginseng.
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Radix et Rhizoma Ginseng chemoprevents both initiation and promotion of cutaneous carcinoma by enhancing cell-mediated immunity and maintaining redox homeostasis. J Ginseng Res 2019; 44:580-592. [PMID: 32617038 PMCID: PMC7322735 DOI: 10.1016/j.jgr.2019.05.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 03/17/2019] [Accepted: 05/10/2019] [Indexed: 01/22/2023] Open
Abstract
Background Radix et Rhizoma Ginseng (thereafter called ginseng) has been used as a medicinal herb for thousands of years to maintain people's physical vitality and is also a non–organ-specific cancer preventive and therapeutic traditional medicine in several epidemiologic and preclinical studies. Owing to few toxic side effects and strong enhancement on body immunity, ginseng has admirable application potential and value in cancer chemoprevention. The study aims at investigating the chemopreventive effects of ginseng on cutaneous carcinoma and the underlying mechanisms. Methods The mouse skin cancer model was induced by 7,12-dimethylbenz[a]anthracene/12-O-tetradecanoylphorbol-13-acetate. Ultraperformance liquid chromatography/mass spectrometry was used for identifying various ginsenosides, the main active ingredients of ginseng. Comprehensive approaches (including network pharmacology, bioinformatics, and experimental verification) were used to explore the potential targets of ginseng. Results Ginseng treatment inhibited cutaneous carcinoma in terms of initiation and promotion. The content of Rb1, Rb2, Rc, and Rd ginsenosides was the highest in both mouse blood and skin tissues. Ginseng and its active components well maintained the redox homeostasis and modulated the immune response in the model. Specifically, ginseng treatment inhibited the initiation of skin cancer by enhancing T-cell–mediated immune response through upregulating HSP27 expression and inhibited the promotion of skin cancer by maintaining cellular redox homeostasis through promoting nuclear translocation of Nrf2. Conclusion According to the study results, ginseng can be potentially used for cutaneous carcinoma as a chemopreventive agent by enhancing cell-mediated immunity and maintaining redox homeostasis with multiple components, targets, and links.
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Abebe W. Review of herbal medications with the potential to cause bleeding: dental implications, and risk prediction and prevention avenues. EPMA J 2019; 10:51-64. [PMID: 30984314 DOI: 10.1007/s13167-018-0158-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Accepted: 12/20/2018] [Indexed: 12/27/2022]
Abstract
Medicinal plant products have been used in health care since time immemorial. During the past three decades, the use of herbal supplements has been on the rise in the USA. A number of these products have been shown to possess the potential to interfere with blood clotting. This paper is a review of blood-thinning herbal supplements commonly used in the USA, accompanied by discussion of the dental implications of their use along with suggestions for prediction and prevention of the risk of bleeding. Twenty herbal supplements belonging to four pharmacological groups are identified and reviewed. While the majority (45%) of the supplements reviewed possesses antiplatelet properties, the remaining are dispersed among anticoagulant (15%), a combination of antiplatelet and anticoagulant (15%), and other diverse groups (25%). The literature reveals that most of the available information on blood-thinning herbs is based on in vitro experiments, animal studies, and individual clinical case reports. Some herbal effects are also speculated based on theoretical grounds. These observations, together with the deficiency of the law regulating herbal supplements, indicate limitations of the literature and the regulatory mechanisms related to these products, further implying the need for additional research and improved regulation. While emphasizing the dental implications of the findings reported in the literature, suggestions were made for prediction and prevention of the risk of bleeding caused by herbal medications, based on the concepts of predictive, preventive, and personalized medicine.
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Affiliation(s)
- Worku Abebe
- Department of Oral Biology and Diagnostic Sciences, Dental College of Georgia, Augusta University, CL-2130, Augusta, GA 30912-1128 USA
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Uchida D, Takaki A, Adachi T, Okada H. Beneficial and Paradoxical Roles of Anti-Oxidative Nutritional Support for Non-Alcoholic Fatty Liver Disease. Nutrients 2018; 10:E977. [PMID: 30060482 PMCID: PMC6116036 DOI: 10.3390/nu10080977] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2018] [Revised: 07/17/2018] [Accepted: 07/24/2018] [Indexed: 02/06/2023] Open
Abstract
Oxidative stress is being recognized as a key factor in the progression of chronic liver disease (CLD), especially non-alcoholic fatty liver disease (NAFLD). Many NAFLD treatment guidelines recommend the use of antioxidants, especially vitamin E. Many prospective studies have described the beneficial effects of such agents for the clinical course of NAFLD. However, as these studies are usually short-term evaluations, lasting only a few years, whether or not antioxidants continue to exert favorable long-term effects, including in cases of concomitant hepatocellular carcinoma, remains unclear. Antioxidants are generally believed to be beneficial for human health and are often commercially available as health-food products. Patients with lifestyle-related diseases often use such products to try to be healthier without practicing lifestyle intervention. However, under some experimental NAFLD conditions, antioxidants have been shown to encourage the progression of hepatocellular carcinoma, as oxidative stress is toxic for cancer cells, just as for normal cells. In this review, we will highlight the paradoxical effects of antioxidants against NAFLD and related hepatocellular carcinoma.
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Affiliation(s)
- Daisuke Uchida
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan.
| | - Akinobu Takaki
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan.
| | - Takuya Adachi
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan.
| | - Hiroyuki Okada
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan.
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Flavonoids Effects on Hepatocellular Carcinoma in Murine Models: A Systematic Review. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2018; 2018:6328970. [PMID: 29681978 PMCID: PMC5850900 DOI: 10.1155/2018/6328970] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Accepted: 11/06/2017] [Indexed: 02/07/2023]
Abstract
The hepatocellular carcinoma (HCC) is the second most common cause of cancer deaths worldwide. It occurs primarily as manifestation of other pathological processes, such as viral hepatitis, cirrhosis, and toxin exposure that affect directly the cellular process. Studies were selected from PubMed and Scopus databases according to the PRISMA statement. The research filters were constructed using three parameters: flavonoids, hepatocellular carcinoma, and animal model. The bias analysis of the 34 selected works was done using the ARRIVE guidelines. The most widely used flavonoid in the studies was epigallocatechin gallate extracted from green tea. In general, the treatment with different flavonoids presented inhibition of tumor growth and antiangiogenic, antimetastatic, antioxidant, and anti-inflammatory activities. The bias analysis evidenced the absence of methodological processes in all studies, such as the age or weight of the animals, the method of flavonoids' extraction, or the experimental designs, analytical methods, and outcome measures. It has been known that flavonoids have a protective effect against HCC. However, the absence or incomplete characterization of the animal models, treatment protocols, and phytochemical and toxicity analyses impaired the internal validity of the individual studies, making it difficult to determine the effectiveness of plant-derived products in the treatment of HCC.
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Majeed F, Malik FZ, Ahmed Z, Afreen A, Afzal MN, Khalid N. Ginseng phytochemicals as therapeutics in oncology: Recent perspectives. Biomed Pharmacother 2018; 100:52-63. [PMID: 29421582 DOI: 10.1016/j.biopha.2018.01.155] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 01/27/2018] [Accepted: 01/29/2018] [Indexed: 02/07/2023] Open
Abstract
During the last few decades, cancer has mushroomed as a major health issue; and almost all drugs used for its therapy are very toxic with lethal side effects. Complementary and alternative medicines gain popularity among health professionals in recent era owing to its preventive mechanism against side effect chemotherapeutic drugs. Efforts are focused by scientists to isolate compounds from medicinal plant that have chemotherapeutic attributes; and ability to neutralize the side effects of chemotherapy. Ginseng is an oriental medicinal recipe from Araliceae family and Panax species. The chemotherapeutic effect of ginsenoside is resultant of its appetites, anti-proliferative, anti-angiogenic, anti-inflammatory and anti-oxidant properties. The anticancer effect of ginseng is proven in various types of cancer, including; breast, lung, liver, colon and skin cancer. It increases the mitochondrial accumulation of apoptosis protein and downregulate the expression of anti-apoptotic protein. It also aids in the reduction of alopecia, fatigue and nausea, the known side effects of chemotherapeutic drugs. The aim of the present review is to provide the brief review of the recent researches related to mechanism of action of ginseng in different types of cancer as complementary and alternative medicine on different body organs.
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Affiliation(s)
- Fatima Majeed
- Department of Home and Health Sciences, Allama Iqbal Open University, Islamabad, Pakistan
| | - Fozia Zahur Malik
- Department of Home and Health Sciences, Allama Iqbal Open University, Islamabad, Pakistan
| | - Zaheer Ahmed
- Department of Home and Health Sciences, Allama Iqbal Open University, Islamabad, Pakistan.
| | - Asma Afreen
- Department of Home and Health Sciences, Allama Iqbal Open University, Islamabad, Pakistan
| | - Muhammad Naveed Afzal
- School of Health Sciences, University of Management and Technology, Lahore 54000, Pakistan
| | - Nauman Khalid
- School of Food and Agricultural Sciences, University of Management and Technology, Lahore 54000, Pakistan; Center of Chemistry and Biotechnology, Deakin University, Waurn Ponds, Victoria, 3217, Australia.
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Kim TW. Ginseng for Liver Injury: Friend or Foe? MEDICINES (BASEL, SWITZERLAND) 2016; 3:E33. [PMID: 28930143 PMCID: PMC5456240 DOI: 10.3390/medicines3040033] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Revised: 12/08/2016] [Accepted: 12/08/2016] [Indexed: 12/19/2022]
Abstract
Panax sp., including Panax ginseng Meyer, Panax quiquifolius L., or Panax notoginseng (Burk.) FH Chen, have been used as functional foods or for traditional Chinese medicine for diabetes, inflammation, stress, aging, hepatic injury, and cancer. In recent decades, a number of both in vitro and in vivo experiments as well as human studies have been conducted to investigate the efficacy and safety of various types of ginseng samples and their components. Of these, the hepatoprotective and hepatotoxic effects of ginseng and their ginsenosides and polysaccharides are reviewed and summarized.
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Affiliation(s)
- Tae-Woo Kim
- Graduate School of Medicine, School of Medicine, CHA University, Seongnam-shi, Gyunggi-do 13488, Korea.
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A herbal formula, comprising Panax ginseng and bee-pollen, inhibits development of testosterone-induced benign prostatic hyperplasia in male Wistar rats. Saudi J Biol Sci 2015; 24:1555-1561. [PMID: 30294225 PMCID: PMC6169514 DOI: 10.1016/j.sjbs.2015.10.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Revised: 10/24/2015] [Accepted: 10/30/2015] [Indexed: 11/23/2022] Open
Abstract
A recent study reported that Panax ginseng (P. ginseng) has a protective effect on the development of benign prostatic hyperplasia (BPH). KH053 is used as a new herbal prescription consisting of P. ginseng and bee-pollen. The present study aimed to investigate whether the KH053 has inhibition effects on the development of benign prostatic hyperplasia (BPH) using an animal model with testosterone induced BPH. The experiment was carried out in forty male Wistar 7 week old rats that were divided into four groups (control group, BPH group, positive group, and KH053 group). One group was used as the control and the three groups received subcutaneous injections of testosterone 20 mg/kg for 4 weeks to induce BPH. One of them received KH053 by oral gavage daily at doses of 200 mg/kg concurrently with the testosterone. The positive group received finasteride at a dose of 1 mg/kg with testosterone. After 4 weeks, all rats were sacrificed and analyzed for prostate weight, and growth factors. Results revealed that, compared to rats in the BPH group, KH053 showed that the prostate weight and dihydrotestosterone (DHT) levels in serum were significantly decreased and the decreases in hyperplasia in prostate were also observed. In addition, immunohistochemistry (IHC) also revealed that the protein expressions of growth factors [transforming growth factor β1 (TGF-β1) and vascular endothelial growth factor (VEGF)] in prostate tissue were decreased in the KH053 group. In conclusion, these results suggest that KH053, comprising P. ginseng and bee-pollen, inhibits the development of BPH in Wistar rat model and might be used as functional food for BPH.
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Kim H, Hong MK, Choi H, Moon HS, Lee HJ. Chemopreventive effects of korean red ginseng extract on rat hepatocarcinogenesis. J Cancer 2015; 6:1-8. [PMID: 25553083 PMCID: PMC4278909 DOI: 10.7150/jca.10353] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2014] [Accepted: 10/15/2014] [Indexed: 01/11/2023] Open
Abstract
The objective of this study was to determine a chemopreventive activity of Korean red ginseng extract (KRG) in diethylnitrosamine (DEN) induced hepatocarcinogenesis in rats. After acclimatization for a week, Sprague-Dawley rats were randomized into five groups (n = 15) and fed either KRG (0.5, 1 or 2%) or control diets for 10 weeks. After two weeks of starting of experimental diets, the rats were initiated hepatocarcinogenesis by injection of DEN and were then subjected to two-thirds partial hepatectomy at five-week for developing the medium-term bioassay system. Both 0.5 and 1% KRG diets suppressed the area (55 and 60%; p= 0.0251 and 0.0144) and number (39 and 59%; p= 0.0433 and 0.0012) of glutathione S-transferase placental form (GST-P) positive foci when compared to the DEN-control group. The production of thiobarbituric acid reactive substances (TBARS) was significantly reduced in 0.5 and 1% KRG-treated rats. The supplementation of 1% KRG diet significantly elevated the levels of total glutathione (tGSH) and glutathione-related enzymes including cytosolic glutathione S-transferase (GST) and glutathione peroxidase (GPx) activities. It was also observed in cDNA microarray that the gene expressions (Cyp2c6, Cyp2e1, Cyp3a9, and Mgst1) involved in the xenobiotics metabolism via cytochrome P450 signaling pathway were down-regulated in the 1% KRG diet-treated group when compared to the DEN-control. The chemopreventive effects of KRG could be affected by 1) the decrease of lipid peroxidation, 2) the increase of tGSH content and GSH-dependent enzyme activities, and 3) the decrease of the gene expression profile involved in cytochrome P450 signaling pathway. These results suggest that KRG may prove to be a therapeutic agent against hepatocarcinogenesis.
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Affiliation(s)
- Hyemee Kim
- 1. Department of Nutrition and Food Science, Texas A&M University, College station, Texas, 77845, USA
| | - Mi-Kyung Hong
- 2. Department of Dietetics, Samsung Medical Center, Seoul, 135-710, South Korea
| | - Haymie Choi
- 3. Department of Food and Nutrition, Seoul National University, Seoul, 151-742, South Korea
| | - Hyun-Seuk Moon
- 4. Laboratory of Metabolic Engineering, Division of Biotechnology, College of Life Sciences & Biotechnology, Korea University, Seoul, 136-713, South Korea
| | - Hae-Jeung Lee
- 5. Department of Food and Nutrition, Eulji University, Seoungnam-Si, Kyunggi-Do, 461-713, South Korea
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