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Yu J, Wang J, Yang J, Ouyang T, Gao H, Kan H, Yang Y. New insight into the mechanisms of Ginkgo biloba leaves in the treatment of cancer. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 122:155088. [PMID: 37844377 DOI: 10.1016/j.phymed.2023.155088] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 09/07/2023] [Accepted: 09/11/2023] [Indexed: 10/18/2023]
Abstract
BACKGROUND Ginkgo biloba leaves (GBLs), as an herbal dietary supplement and a traditional Chinese medicine, have been used in treating diseases for hundred years. Recently, increasing evidence reveals that the extracts and active ingredients of GBLs have anti-cancer (chemo-preventive) properties. However, the molecular mechanism of GBLs in anti-cancer has not been comprehensively summarized. PURPOSE To systematically summarize the literatures for identifying the molecular mechanism of GBLs in cellular, animal models and clinical trials of cancers, as well as for critically evaluating the current evidence of efficacy and safety of GBLs for cancers. METHODS Employing the search terms "Ginkgo biloba" and "cancer" till July 25, 2023, a comprehensive search was carried out in four electronic databases including Scopus, PubMed, Google Scholar and Web of Science. The articles not contained in the databases are performed by manual searches and all the literatures on anti-cancer research and mechanism of action of GBLs was extracted and summarized. The quality of methodology was assessed independently through PRISMA 2020. RESULTS Among 84 records found in the database, 28 were systematic reviews related to GBLs, while the remaining 56 records were related to the anticancer effects of GBLs, which include studies on the anticancer activities and mechanisms of extracts or its components in GBLs at cellular, animal, and clinical levels. During these studies, the top six cancer types associated with GBLs are lung cancer, hepatocellular carcinoma, gastric cancer, breast cancer, colorectal cancer, and cervical cancer. Further analysis reveals that GBLs primarily exert their anticancer effects by stimulating cancer cell apoptosis, inhibiting cell proliferation, invasion and migration of cancers, exhibiting anti-inflammatory and antioxidant properties, and modulating signaling pathways. Besides, the pharmacology, toxicology, and clinical research on the anti-tumor activity of GBLs have also been discussed. CONCLUSIONS This is the first paper to thoroughly investigate the pharmacology effect, toxicology, and the mechanisms of action of GBLs for anti-cancer properties. All the findings will reinforce the need to explore the new usage of GBLs in cancers and offer comprehensive reference data and recommendations for future research on this herbal medicine.
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Affiliation(s)
- Jing Yu
- School of Medical Informatics Engineering, Anhui University of Chinsese Medicine, Hefei, Anhui 230012, China
| | - Jinghui Wang
- School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, Anhui 230012, China.
| | - Jianhua Yang
- School of Medical Informatics Engineering, Anhui University of Chinsese Medicine, Hefei, Anhui 230012, China
| | - Ting Ouyang
- School of Medical Informatics Engineering, Anhui University of Chinsese Medicine, Hefei, Anhui 230012, China
| | - Honglei Gao
- School of Medical Informatics Engineering, Anhui University of Chinsese Medicine, Hefei, Anhui 230012, China
| | - Hongxing Kan
- School of Medical Informatics Engineering, Anhui University of Chinsese Medicine, Hefei, Anhui 230012, China; Anhui Computer Application Research Institute of Chinese Medicine, China Academy of Chinese Medical Sciences, Hefei, Anhui 230012, China
| | - Yinfeng Yang
- School of Medical Informatics Engineering, Anhui University of Chinsese Medicine, Hefei, Anhui 230012, China; Anhui Computer Application Research Institute of Chinese Medicine, China Academy of Chinese Medical Sciences, Hefei, Anhui 230012, China.
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Al Zarzour RH, Kamarulzaman EE, Saqallah FG, Zakaria F, Asif M, Abdul Razak KN. Medicinal plants' proposed nanocomposites for the management of endocrine disorders. Heliyon 2022; 8:e10665. [PMID: 36185142 PMCID: PMC9520215 DOI: 10.1016/j.heliyon.2022.e10665] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 05/07/2022] [Accepted: 09/09/2022] [Indexed: 01/14/2023] Open
Abstract
Extensive attention has been focused on herbal medicine for the treatment of different endocrine disorders. In fact, compelling scientific evidence indicates that natural compounds might act as endocrine modulators by mimicking, stimulating, or inhibiting the actions of different hormones, such as thyroid, sex, steroidal, and glucose regulating hormones. These potentials might be effectively employed for therapeutic purposes related to the endocrine system as novel complementary choices. Nevertheless, despite the remarkable therapeutic effects, inadequate targeting efficiency and low aqueous solubility of the bioactive components are still essential challenges in their clinical accreditation. On the other hand, nanotechnology has pushed the wheels of combining inorganic nanoparticles with biological structures of medicinal bioactive compounds as one of the utmost exciting fields of research. Nanoparticle conjugations create an inclusive array of applications that provide greater compliance, higher bioavailability, and lower dosage. This can safeguard the global availability of these wealthy natural sources, regardless of their biological occurrence. This review inspects future challenges of medicinal plants in various endocrine disorders for safe and alternative treatments with examples of their nanoparticle formulations.
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Affiliation(s)
- Raghdaa Hamdan Al Zarzour
- Discipline of Physiology & Pharmacology, School of Pharmaceutical Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia.,Department of Pharmacology, Faculty of Pharmacy, Arab International University, Daraa Highway, Ghabagheb Syria
| | - Ezatul Ezleen Kamarulzaman
- Discipline of Pharmaceutical Chemistry, School of Pharmaceutical Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia
| | - Fadi G Saqallah
- Discipline of Pharmaceutical Chemistry, School of Pharmaceutical Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia
| | - Fauziahanim Zakaria
- Discipline of Pharmaceutical Chemistry, School of Pharmaceutical Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia
| | - Muhammad Asif
- Department of Pharmacology, Faculty of Pharmacy, The Islamia University of Bahawalpur, 63100 Punjab, Pakistan
| | - Khairul Niza Abdul Razak
- Discipline of Physiology & Pharmacology, School of Pharmaceutical Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia
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Zaid SSM, Ruslee SS, Mokhtar MH. Protective Roles of Honey in Reproductive Health: A Review. Molecules 2021; 26:molecules26113322. [PMID: 34205972 PMCID: PMC8197897 DOI: 10.3390/molecules26113322] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 03/15/2021] [Accepted: 03/18/2021] [Indexed: 11/16/2022] Open
Abstract
Nowadays, most people who lead healthy lifestyles tend to use natural products as supplements, complementary medicine or alternative treatments. Honey is God's precious gift to mankind. Honey has been highly appreciated and extensively used since ancient history due to its high nutritional and therapeutic values. It is also known to enhance fertility. In the last few decades, the important role of honey in modern medicine has been acknowledged due to the large body of convincing evidence derived from extensive laboratory studies and clinical investigations. Honey has a highly complex chemical and biological composition that consists of various essential bioactive compounds, enzymes, amino and organic acids, acid phosphorylase, phytochemicals, carotenoid-like substances, vitamins and minerals. Reproductive health and fertility rates have declined in the last 30 years. Therefore, this review aimed to highlight the protective role of honey as a potential therapeutic in maintaining reproductive health. The main role of honey is to enhance fertility and treat infertility problems by acting as an alternative to hormone replacement therapy for protecting the vagina and uterus from atrophy, protecting against the toxic effects of xeno-oestrogenic agents on female reproductive functions and helping in the treatment of gynaecological disorders, such as vulvovaginal candidiasis infection, that affect women's lives.
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Affiliation(s)
- Siti Sarah Mohamad Zaid
- Department of Environment, Faculty of Forestry and Environment, Universiti Putra Malaysia, Serdang 43400, Malaysia;
- Correspondence: ; Tel.: +60-3-9769-6742
| | - Siti Suraya Ruslee
- Department of Environment, Faculty of Forestry and Environment, Universiti Putra Malaysia, Serdang 43400, Malaysia;
| | - Mohd Helmy Mokhtar
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia;
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Banin RM, Machado MMF, de Andrade IS, Carvalho LOT, Hirata BKS, de Andrade HM, Júlio VDS, Ribeiro JDSFB, Cerutti SM, Oyama LM, Ribeiro EB, Telles MM. Ginkgo biloba extract (GbE) attenuates obesity and anxious/depressive-like behaviours induced by ovariectomy. Sci Rep 2021; 11:44. [PMID: 33420094 PMCID: PMC7794418 DOI: 10.1038/s41598-020-78528-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Accepted: 11/09/2020] [Indexed: 12/20/2022] Open
Abstract
While several pieces of evidence link obesity and mood disorders in menopause, the mechanisms involved are not yet fully understood. We have previously demonstrated that Ginkgo biloba extract (GbE) both attenuated diet-induced obesity of male rats and restored serotonin-induced hypophagia in ovariectomized female rats. The present study aimed at exploring whether GbE treatment ameliorates ovariectomy-related obesity and anxious/depressive-like behaviours. Wistar female rats were either ovariectomized (OVX) or sham-operated (Sham). After 2 months, either 500 mg/kg of GbE or vehicle were administered daily by gavage for 14 days. Anxious/depressive-like behaviours were assessed by the Elevated Plus Maze and the Forced Swim Tests, respectively. Ovariectomy caused high visceral adiposity, hyperleptinemia, and hypercholesterolemia, and increased the anxiety index (p = 0.048 vs. Sham + GbE) while it decreased the latency to immobility (p = 0.004 vs. Sham). GbE treatment in OVX rats improved body composition, adiponectin levels and blood lipid profile. It also reduced the anxiety index (p = 0.004) and increased the latency to immobility (p = 0.003) of OVX rats. Linear regression analysis demonstrated that leptin (p = 0.047) and total cholesterol levels (p = 0.022) were associated with anxious-like behaviours while body adiposity (p = 0.00005) was strongly associated with depressive-like behaviours. The results showed that GbE therapy was effective in attenuating the deleterious effects of ovariectomy on body composition, lipid profile, and anxious/depressive-like behaviours. Further studies are warranted to better understand the therapeutic potential of GbE in menopause.
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Affiliation(s)
- Renata Mancini Banin
- Disciplina de Fisiologia da Nutrição, Departamento de Fisiologia, Universidade Federal de São Paulo, Rua Botucatu, 862, Edifício de Ciências Biomédicas, 2º andar, Vila Clementino, São Paulo, SP, CEP: 04023-062, Brasil
| | - Meira Maria Forcelini Machado
- Setor de Fisiologia e Farmacologia, Departamento de Ciências Biológicas, Universidade Federal de São Paulo, Diadema, SP, Brasil
| | - Iracema Senna de Andrade
- Disciplina de Fisiologia da Nutrição, Departamento de Fisiologia, Universidade Federal de São Paulo, Rua Botucatu, 862, Edifício de Ciências Biomédicas, 2º andar, Vila Clementino, São Paulo, SP, CEP: 04023-062, Brasil
| | - Lorenza Oliveira Testa Carvalho
- Disciplina de Fisiologia da Nutrição, Departamento de Fisiologia, Universidade Federal de São Paulo, Rua Botucatu, 862, Edifício de Ciências Biomédicas, 2º andar, Vila Clementino, São Paulo, SP, CEP: 04023-062, Brasil
| | - Bruna Kelly Sousa Hirata
- Setor de Fisiologia e Farmacologia, Departamento de Ciências Biológicas, Universidade Federal de São Paulo, Diadema, SP, Brasil
| | - Heider Mendonça de Andrade
- Setor de Fisiologia e Farmacologia, Departamento de Ciências Biológicas, Universidade Federal de São Paulo, Diadema, SP, Brasil
| | - Viviane da Silva Júlio
- Setor de Fisiologia e Farmacologia, Departamento de Ciências Biológicas, Universidade Federal de São Paulo, Diadema, SP, Brasil
| | | | - Suzete Maria Cerutti
- Setor de Fisiologia e Farmacologia, Departamento de Ciências Biológicas, Universidade Federal de São Paulo, Diadema, SP, Brasil
| | - Lila Missae Oyama
- Disciplina de Fisiologia da Nutrição, Departamento de Fisiologia, Universidade Federal de São Paulo, Rua Botucatu, 862, Edifício de Ciências Biomédicas, 2º andar, Vila Clementino, São Paulo, SP, CEP: 04023-062, Brasil
| | - Eliane Beraldi Ribeiro
- Disciplina de Fisiologia da Nutrição, Departamento de Fisiologia, Universidade Federal de São Paulo, Rua Botucatu, 862, Edifício de Ciências Biomédicas, 2º andar, Vila Clementino, São Paulo, SP, CEP: 04023-062, Brasil.
| | - Mônica Marques Telles
- Disciplina de Fisiologia da Nutrição, Departamento de Fisiologia, Universidade Federal de São Paulo, Rua Botucatu, 862, Edifício de Ciências Biomédicas, 2º andar, Vila Clementino, São Paulo, SP, CEP: 04023-062, Brasil
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Mosavat M, Mohamed M, Ooi FK, Mirsanjari M, Mat Zin AA, Che Romli A. Histological changes of female reproductive organs subjected to different jumping exercise intensities and honey supplementation in rats. PeerJ 2019; 7:e7646. [PMID: 31565571 PMCID: PMC6743611 DOI: 10.7717/peerj.7646] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2019] [Accepted: 08/08/2019] [Indexed: 11/25/2022] Open
Abstract
Background We assessed histopathological changes of ovaries and uterus in female rats subjected to different jumping exercise intensities combined with honey supplementation at one g/kg body weight/day. Methods A total of 72 rats were divided into six groups, 12 rats in each: control (C), 20 and 80 jumps (20E, 80E), honey (H), and 20 and 80 jump with honey (20EH, 80EH). Results The endometrium was significantly thicker in the rats in H, 20EH and 80EH groups compared to C, 20E, and 80E. The myometrium thickness was significantly lower in 80E and significantly higher in 80EH compared to C, respectively. There was significantly higher myometrium thickness in 20EH and 80EH compared to 20E and 80E and H. The number of glands of the uterus in 20E and 80E was significantly lower than C. However, there was a significantly higher number of glands in H, 20EH, and 80EH compared to 20E and 80E. The numbers of uterus vessels were significantly lower in 80E compared to 20E. However, the numbers of vessels were significantly higher in H, 20EH, and 80EH compared to 80E. The number of ovarian haemorregia was significantly lower in 20E, 80E, H, 20EH, and 80EH compared to C. The number of corpora lutea was significantly lower in 80EH, H, 80E, and 20E compared to C. However, the number of corpora lutea was significantly higher in 20EH compared to J20 and H. Conclusion This study suggested that jumping exercises in particularly high-intensity exercise may induce histopathological changes in uterus and ovary in rats, and honey supplementation may ameliorate these effects.
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Affiliation(s)
- Maryam Mosavat
- Sport Science Unit, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
| | - Mahaneem Mohamed
- Department of Physiology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
| | - Foong Kiew Ooi
- Sport Science Unit, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia.,Exercise and Sports Science Programme, School of Health Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
| | - Mitra Mirsanjari
- Nutrition Programme, School of Health Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia.,Mazandaran University of Medical Sciences, Emam Khomeini Hospital, Fereidonkenar, Mazandaran, Iran
| | - Anani Aila Mat Zin
- Department of Pathology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
| | - Aminah Che Romli
- Department of Physiology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
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Verma S, Ranawat P, Sharma N, Nehru B. Ginkgo biloba attenuates aluminum lactate-induced neurotoxicity in reproductive senescent female rats: behavioral, biochemical, and histopathological study. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:27148-27167. [PMID: 31321719 DOI: 10.1007/s11356-019-05743-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Accepted: 06/11/2019] [Indexed: 05/27/2023]
Abstract
Extensive use of aluminum (Al) in industry, cooking utensils, and wrapping or freezing the food items, due to its cheapness and abundance in the environment, has become a major concern. Growing evidence supports that environmental pollutant Al promotes the aggregation of amyloid beta (Aβ) in the brain, which is the main pathological marker of Alzheimer's disease (AD). Further, AD- and Al-induced neurotoxic effects are more common among women following reproductive senescence due to decline in estrogen. Though clinically Ginkgo biloba extract (GBE) has been exploited as a memory enhancer, its role in Al-induced neurotoxicity in reproductive senescent female rats needs to be evaluated. Animals were exposed to intraperitoneal dose (10 mg/kg b.wt) of Al and oral dose (100 mg/kg b.wt.) of GBE daily for 6 weeks. A significant decline in the Al-induced Aβ aggregates was observed in hippocampal and cortical regions of the brain with GBE supplementation, as confirmed by thioflavin (ThT) and Congo red staining. GBE administration significantly decreased the reactive oxygen species, lipid peroxidation, nitric oxide, and citrulline levels in comparison to Al-treated rats. On the contrary, a significant increase in the reduced glutathione, GSH/GSSG ratio as well as in the activities of antioxidant enzymes was observed with GBE administration. Based on the above results, GBE prevented the neuronal loss in the hippocampus and cortex, hence caused significant improvement in the learning and memory of the animals in terms of AChE activity, serotonin levels, Morris water maze, and active and passive avoidance tests. In conclusion, GBE has alleviated the behavioral, biochemical, and histopathological alterations due to Al toxicity in rats. However, molecular studies are going on to better understand the mechanism of GBE protection against the environmental toxicant Al exposure. Graphical abstract .
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Affiliation(s)
- Sonia Verma
- Department of Biophysics, South Campus, Panjab University, Chandigarh, 160014, India
| | - Pavitra Ranawat
- Department of Biophysics, South Campus, Panjab University, Chandigarh, 160014, India
| | - Neha Sharma
- Department of Biophysics, South Campus, Panjab University, Chandigarh, 160014, India
| | - Bimla Nehru
- Department of Biophysics, South Campus, Panjab University, Chandigarh, 160014, India.
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Wang S, Lin H, Cong W. Chinese Medicines Improve Perimenopausal Symptoms Induced by Surgery, Chemoradiotherapy, or Endocrine Treatment for Breast Cancer. Front Pharmacol 2019; 10:174. [PMID: 30930771 PMCID: PMC6428993 DOI: 10.3389/fphar.2019.00174] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2018] [Accepted: 02/11/2019] [Indexed: 12/22/2022] Open
Abstract
The application of surgery, chemoradiotherapy, and endocrine treatment successfully increases survival rates of breast cancer patients. However, perimenopausal symptoms, the main side effects of these treatments, often afflict patients and reduce their quality of life. Perimenopausal symptoms include vasomotor symptoms, sleep problems, arthromuscular symptoms, and osteoporosis. Currently, there are no satisfactory treatments for perimenopausal symptoms that result from these treatments. Therefore, alternative and complementary therapies including herbal medicines represented by Chinese medicines (CMs), acupuncture, massage, and psychotherapy are increasingly being expected and explored. In this paper, we review the effects and potentials of several CM formulae, along with some active ingredients or fractions from CMs, Chinese herbal extracts, and other herbal medicines, which have drawn attention for improving perimenopausal symptoms in breast cancer patients. We also elaborate their possible mechanisms. Moreover, further studies for evaluation of standardized clinical efficacy should be scientifically well-designed and continuously performed to investigate the efficacy and mechanisms of CMs for perimenopausal symptoms due to breast cancer therapy. The safety and value of estrogen-containing CMs for breast cancer should also be clarified.
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Affiliation(s)
- Shuo Wang
- Department of Oncology of Integrative Chinese and Western Medicine, China-Japan Friendship Hospital, Beijing, China
| | - Hongsheng Lin
- Department of Oncology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Weihong Cong
- Laboratory of Cardiovascular Diseases, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
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Park YJ, Zheng H, Kwak JH, Chung KH. Sesquiterpenes from Cyperus rotundus and 4α,5α-oxidoeudesm-11-en-3-one as a potential selective estrogen receptor modulator. Biomed Pharmacother 2018; 109:1313-1318. [PMID: 30551381 DOI: 10.1016/j.biopha.2018.10.186] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 10/30/2018] [Accepted: 10/31/2018] [Indexed: 01/10/2023] Open
Abstract
Estrogenic activity-oriented fractionation and purification of methanol extract from the rhizome of Cyperus rotundus, a well-known traditional herbal medicine, led to the isolation of six sesquiterpenes. 4α,5α-Oxidoeudesm-11-en-3-one (2) and cyper-11-ene-3,4-dione (3) together with four known sesquiterpenes, cyperotundone (1), caryophyllene α-oxide (4), α-cyperone (5), and isocyperol (6) were obtained from the hexane and dichloromethane fractions. Compounds 2 and 3 were newly isolated from natural resources in particular. To identify the possible use of isolated compounds as an alternative to hormone replacement therapy (HRT), estrogenic activity was evaluated by E-screen assay on MCF-7 BUS cells. Among the all isolated compounds from the rhizome of Cyperus rotundus, newly isolated from natural resource, 2 exhibited the most potent estrogenic activity. In an estrogen sensitive reporter gene assay, 2 significantly increased transcriptional activities. As a phytoestrogen, 2 was assessed by investigating dual action on ER-α and ER-β in competitive binding assay. It was found that 2 exerted higher binding affinity to ER-β than ER-α and it also showed both estrogenic and antiestrogenic effects depending on the E2 concentration. Our results indicate that newly isolated from Cyperus rotundus, 2 has biphasic activities on estrogen receptors which could be useful as an alternative HRT.
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Affiliation(s)
- Yong Joo Park
- School of Pharmacy, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Hailing Zheng
- School of Pharmacy, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Jong Hwan Kwak
- School of Pharmacy, Sungkyunkwan University, Suwon, 16419, Republic of Korea.
| | - Kyu Hyuck Chung
- School of Pharmacy, Sungkyunkwan University, Suwon, 16419, Republic of Korea.
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Moon B, Kim W, Park CH, Oh SM. Ginkgo biloba extract (EGb761) did not express estrogenic activity in an immature rat uterotrophic assay. ENVIRONMENTAL HEALTH AND TOXICOLOGY 2018; 33:e2018016-0. [PMID: 30286592 PMCID: PMC6182247 DOI: 10.5620/eht.e2018016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Accepted: 09/21/2018] [Indexed: 06/08/2023]
Abstract
Ginkgo biloba is a dioecious tree that has been used in traditional Chinese medicine for about 5,000 years. In previous studies on ginkgo biloba extract (EGb761) using in vitro systems, we confirmed that EGb761 has biphasic effects on estrogenicity. In this study, we evaluated the agonistic and antagonistic activities of EGb761 using a uterotrophic assay in immature female rats. To evaluate agonistic and antagonistic effects of EGb761 on uterus, 21-day-old immature Sprague-Dawley (SD) female rats were treated with EGb761 (100, 200, or 400 mg/kg) by oral gavage, 10 μg/kg of estradiol (E2) or 1 mg/kg tamoxifen (TM) by subcutaneous injection, or with EGb761 plus E2 or TM for 3 consecutive days. At the end of the treatment period, animals were sacrificed and their body weights and organ weights (liver, lung, spleen and kidney) were measured. In addition, estrogen-related gene expressions (IGFBP-1 in liver and CaBP-9 in uterus) were determined. During the experiment, no animal showed clinical signs, a change in body weight or died. EGb761 treatment alone had no effect on absolute/relative uterine weight, luminal epithelial cell height (LECH, μm), or luminal circumference (LC, μm). In addition, uterine weights, LECHs, and LC induced by E2 or TM were not significantly changed by EGb761 at any dose. These results collectively suggested EGb761 has no agonistic/antagonistic effects in utero.
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Affiliation(s)
- Byeonghak Moon
- Department of Nanofusion Technology, Hoseo University, Asan, Republic of Korea
| | - Wonchan Kim
- Department of Nanofusion Technology, Hoseo University, Asan, Republic of Korea
- AB solution, Suwon, Republic of Korea
| | - Cho Hee Park
- Department of Nanofusion Technology, Hoseo University, Asan, Republic of Korea
| | - Seung Min Oh
- Department of Nanofusion Technology, Hoseo University, Asan, Republic of Korea
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Banin RM, de Andrade IS, Cerutti SM, Oyama LM, Telles MM, Ribeiro EB. Ginkgo biloba Extract (GbE) Stimulates the Hypothalamic Serotonergic System and Attenuates Obesity in Ovariectomized Rats. Front Pharmacol 2017; 8:605. [PMID: 28928661 PMCID: PMC5591947 DOI: 10.3389/fphar.2017.00605] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Accepted: 08/21/2017] [Indexed: 11/13/2022] Open
Abstract
Menopause is associated with increased risk to develop obesity but the mechanisms involved are not fully understood. We have shown that Ginkgo biloba extract (GbE) improved diet-induced obesity. Since GbE might be effective in the treatment of obesity related to menopause, avoiding the side effects of hormone replacement therapy, we investigated the effect of GbE on hypothalamic systems controlling energy homeostasis. Wistar rats were either ovariectomized (OVX) or Sham-operated. After 2 months, either 500 mg.kg-1 of GbE or vehicle were administered daily by gavage for 14 days. A subset of animals received an intracerebroventricular (i.c.v.) injection of serotonin (300 μg) or vehicle and food intake was measured after 12 and 24 h. Another subset was submitted to in vivo microdialysis and 5-HT levels of the medial hypothalamus were measured by high performance liquid chromatography, before and up to 2 h after the administration of 500 mg.kg-1 of GbE. Additional animals were used for quantification of 5-HT1A, 5-HT1B, 5-HT2C, 5-HTT, and pro-opiomelanocortin hypothalamic protein levels by Western blotting. OVX increased food intake and body weight and adiposity while GbE attenuated these alterations. i.c.v. serotonin significantly reduced food intake in Sham, Sham + GbE, and OVX + GbE groups while it failed to do so in the OVX group. In the OVX rats, GbE stimulated 5-HT microdialysate levels while it reduced hypothalamic 5-HTT protein levels. The results indicate that GbE improved the ovariectomy-induced resistance to serotonin hypophagia, at least in part through stimulation of the hypothalamic serotonergic activity. Since body weight gain is one of the most important consequences of menopause, the stimulation of the serotonergic transmission by GbE may represent a potential alternative therapy for menopause-related obesity.
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Affiliation(s)
- Renata M Banin
- Disciplina de Fisiologia da Nutrição, Departamento de Fisiologia, Universidade Federal de São PauloSão Paulo, Brazil.,Setor de Morfofisiologia e Patologia, Departamento de Ciências Biológicas, Universidade Federal de São PauloDiadema, Brazil
| | - Iracema S de Andrade
- Disciplina de Fisiologia da Nutrição, Departamento de Fisiologia, Universidade Federal de São PauloSão Paulo, Brazil
| | - Suzete M Cerutti
- Setor de Morfofisiologia e Patologia, Departamento de Ciências Biológicas, Universidade Federal de São PauloDiadema, Brazil
| | - Lila M Oyama
- Disciplina de Fisiologia da Nutrição, Departamento de Fisiologia, Universidade Federal de São PauloSão Paulo, Brazil
| | - Mônica M Telles
- Disciplina de Fisiologia da Nutrição, Departamento de Fisiologia, Universidade Federal de São PauloSão Paulo, Brazil.,Setor de Morfofisiologia e Patologia, Departamento de Ciências Biológicas, Universidade Federal de São PauloDiadema, Brazil
| | - Eliane B Ribeiro
- Disciplina de Fisiologia da Nutrição, Departamento de Fisiologia, Universidade Federal de São PauloSão Paulo, Brazil
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Kim M, Park YJ, Ahn H, Moon B, Chung KH, Oh SM. The effects of the standardized extracts of Ginkgo biloba on steroidogenesis pathways and aromatase activity in H295R human adrenocortical carcinoma cells. ENVIRONMENTAL HEALTH AND TOXICOLOGY 2016; 31:e2016010. [PMID: 27188280 PMCID: PMC4886827 DOI: 10.5620/eht.e2016010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Accepted: 04/14/2016] [Indexed: 06/05/2023]
Abstract
OBJECTIVES Aromatase inhibitors that block estrogen synthesis are a proven first-line hormonal therapy for postmenopausal breast cancer. Although it is known that standardized extract of Ginkgo biloba (EGb761) induces anti-carcinogenic effects like the aromatase inhibitors, the effects of EGb761 on steroidogenesis have not been studied yet. Therefore, the effects of EGb761 on steroidogenesis and aromatase activity was studied using a H295R cell model, which was a good in vitro model to predict effects on human adrenal steroidogenesis. METHODS Cortisol, aldosterone, testosterone, and 17β-estradiol were evaluated in the H295R cells by competitive enzyme-linked immunospecific assay after exposure to EGb761. Real-time polymerase chain reaction were performed to evaluate effects on critical genes in steroid hormone production, specifically cytochrome P450 (CYP11/ 17/19/21) and the hydroxysteroid dehydrogenases (3β-HSD2 and 17β-HSD1/4). Finally, aromatase activities were measured with a tritiated water-release assay and by western blotting analysis. RESULTS H295R cells exposed to EGb761 (10 and 100 μg/mL) showed a significant decrease in 17β-estradiol and testosterone, but no change in aldosterone or cortisol. Genes (CYP19 and 17β-HSD1) related to the estrogen steroidogenesis were significantly decreased by EGb761. EGb761 treatment of H295R cells resulted in a significant decrease of aromatase activity as measured by the direct and indirect assays. The coding sequence/ Exon PII of CYP19 gene transcript and protein level of CYP19 were significantly decreased by EGb761. CONCLUSIONS These results suggest that EGb761 could regulate steroidogenesis-related genes such as CYP19 and 17β-HSD1, and lead to a decrease in 17β-estradiol and testosterone. The present study provides good information on potential therapeutic effects of EGb761 on estrogen dependent breast cancer.
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Affiliation(s)
- Mijie Kim
- Oncology and Antimicrobial Products Division, National Institute of Food and Drug Safety Evaluation, Cheongju, Korea
| | - Yong Joo Park
- School of Pharmacy, Sungkyunkwan University, Suwon, Korea
| | - Huiyeon Ahn
- Department of Nanofusion Technology, Hoseo University, Asan, Korea
| | - Byeonghak Moon
- Department of Nanofusion Technology, Hoseo University, Asan, Korea
| | | | - Seung Min Oh
- Department of Nanofusion Technology, Hoseo University, Asan, Korea
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Park YJ, Ahn HY, Kim HR, Chung KH, Oh SM. Ginkgo biloba extract EGb 761-mediated inhibition of aromatase for the treatment of hormone-dependent breast cancer. Food Chem Toxicol 2016; 87:157-65. [DOI: 10.1016/j.fct.2015.12.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Revised: 11/30/2015] [Accepted: 12/04/2015] [Indexed: 12/22/2022]
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Park YJ, Choo WH, Kim HR, Chung KH, Oh SM. Inhibitory Aromatase Effects of Flavonoids from Ginkgo Biloba Extracts on Estrogen Biosynthesis. Asian Pac J Cancer Prev 2015; 16:6317-25. [DOI: 10.7314/apjcp.2015.16.15.6317] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Real M, Molina-Molina JM, Jimenez J, Diéguez HR, Fernández MF, Olea N. Assessment of hormone-like activities in Ginkgo biloba, Elettaria cardamomum and Plantago ovata extracts using in vitro receptor-specific bioassays. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2015; 32:1531-41. [PMID: 26161806 DOI: 10.1080/19440049.2015.1071922] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Medicinal plants are widely used for the treatment of diseases and for the development of new drugs. This study was designed to determine the presence of hormone-like activities dependent on the activation of human estrogen receptor alpha (hERa) and/or androgen receptor (hAR) in methanol extracts prepared from three medicinal plants historically and currently used for therapeutic purposes: Ginkgo biloba leaves (GBL), Elettaria cardamomum seeds (ECS) and Plantago ovata seeds (POS). After a solid-liquid extraction (SLE) step, their effects on hERa function were assessed in MCF-7 breast cancer cells using the E-Screen bioassay, and their ability to induce hAR-mediated reporter gene expression was evaluated using the androgen-sensitive stable prostatic PALM cell line. Unlike POS extracts, GBL and ECS extracts showed estrogenic (0.07 and 0.20 nM E2Eq mg(-1), respectively) and anti-estrogenic (0.01 and 0.02 μM ICI182780Eq mg(-1), respectively) activities. ECS extracts evidenced androgenic activity (0.30 nM R1881Eq mg(-1)) and POS extracts anti-androgenic activity (22.30 μM ProcEq mg(-1)). According to these findings, these plant extracts may interfere with the endocrine system via one or more hormonal receptors, and further investigation is warranted into their role as endocrine disrupters in humans.
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Affiliation(s)
- Macarena Real
- a Research Support Unit , San Cecilio University Hospital, University of Granada , Granada , Spain
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A molecular docking study of phytochemical estrogen mimics from dietary herbal supplements. In Silico Pharmacol 2015; 3:4. [PMID: 25878948 PMCID: PMC4397262 DOI: 10.1186/s40203-015-0008-z] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Accepted: 03/10/2015] [Indexed: 02/06/2023] Open
Abstract
PURPOSE The purpose of this study is to use a molecular docking approach to identify potential estrogen mimics or anti-estrogens in phytochemicals found in popular dietary herbal supplements. METHODS In this study, 568 phytochemicals found in 17 of the most popular herbal supplements sold in the United States were built and docked with two isoforms of the estrogen receptor, ERα and ERβ (a total of 27 different protein crystal structures). RESULTS The docking results revealed six strongly docking compounds in Echinacea, three from milk thistle (Silybum marianum), three from Gingko biloba, one from Sambucus nigra, none from maca (Lepidium meyenii), five from chaste tree (Vitex agnus-castus), two from fenugreek (Trigonella foenum-graecum), and two from Rhodiola rosea. Notably, of the most popular herbal supplements for women, there were numerous compounds that docked strongly with the estrogen receptor: Licorice (Glycyrrhiza glabra) had a total of 26 compounds strongly docking to the estrogen receptor, 15 with wild yam (Dioscorea villosa), 11 from black cohosh (Actaea racemosa), eight from muira puama (Ptychopetalum olacoides or P. uncinatum), eight from red clover (Trifolium pratense), three from damiana (Turnera aphrodisiaca or T. diffusa), and three from dong quai (Angelica sinensis). Of possible concern were the compounds from men's herbal supplements that exhibited strong docking to the estrogen receptor: Gingko biloba had three compounds, gotu kola (Centella asiatica) had two, muira puama (Ptychopetalum olacoides or P. uncinatum) had eight, and Tribulus terrestris had six compounds. CONCLUSIONS This molecular docking study has revealed that almost all popular herbal supplements contain phytochemical components that may bind to the human estrogen receptor and exhibit selective estrogen receptor modulation. As such, these herbal supplements may cause unwanted side effects related to estrogenic activity.
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Stress hormone and reproductive system in response to honey supplementation combined with different jumping exercise intensities in female rats. BIOMED RESEARCH INTERNATIONAL 2014; 2014:123640. [PMID: 24672778 PMCID: PMC3932646 DOI: 10.1155/2014/123640] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/07/2013] [Revised: 12/30/2013] [Accepted: 12/30/2013] [Indexed: 11/17/2022]
Abstract
This study was performed to determine the effects of 8-week honey supplementation combined with different jumping exercise intensities on serum cortisol, progesterone, estradiol, and reproductive organs. Eighty-four 9-week-old female rats were divided into 7 groups: baseline controls (C0), sedentary group (C), 20 and 80 jumps per day (Ex(20J), Ex(80J)), honey (H), and combined honey with 20 and 80 jumps per day (HEx(20J), HEx(80J)) groups. Jumping exercise was performed at 5 days/week and honey was given at a dosage of 1 g/kg body weight/day for 7 days/week. The level of serum cortisol was higher in Ex(20J) and Ex(80J) compared to C. There was significantly lower value of serum cortisol in HEx(20J) compared to Ex(80J). Serum progesterone levels were significantly lower in Ex(20J) and Ex(80J) compared to C. However, serum progesterone levels were significantly higher in HEx(20J) and HEx(80J) compared to Ex(20J) and Ex(80J). Relative uterine weights were significantly greater in HEx(20J) compared to C and HEx(80J), respectively. There was no significant difference in estradiol level and relative ovarian weights among all the groups. Therefore, honey elicited beneficial effects in reducing the increase of cortisol and in increasing the reduce of progesterone levels induced by different intensities jumping exercise in female rats.
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Zhao XD, Dong N, Man HT, Fu ZL, Zhang MH, Kou S, Ma SL. Antiproliferative effect of the Ginkgo biloba extract is associated with the enhancement of cytochrome P450 1B1 expression in estrogen receptor-negative breast cancer cells. Biomed Rep 2013; 1:797-801. [PMID: 24649031 DOI: 10.3892/br.2013.150] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2013] [Accepted: 07/09/2013] [Indexed: 11/06/2022] Open
Abstract
Ginkgo biloba is a dioecious tree and its extract is a complex mixture that has been used for thousands of years to treat a variety of ailments in traditional Chinese medicine. The aim of this study was to present our observations on the inhibitory effects of different Ginkgo biloba extracts on human breast cancer cell proliferation and growth. Our results demonstrated that treatment of MCF-7 and MDA-MB-231 human breast cancer cells with Ginkgo biloba leaves and ginkgo fruit extract inhibited cell proliferation. It was also observed that this inhibition was accompanied by the enhancement of cytochrome P450 (CYP) 1B1 expression in MDA-MB-231 cells. In addition, treatment with ginkgo fruit extract resulted in a higher CYP1B1 expression in MDA-MB-231 cells compared to treatment with the Ginkgo biloba leaves extract. Our results suggested that the inhibitory effects of the Ginkgo biloba extract on estrogen receptor-negative breast cancer proliferation and the induction of CYP1B1 expression may be exerted through an alternative pathway, independent of the estrogen receptor or the aryl hydrocarbon receptor pathway.
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Affiliation(s)
- Xiao-Dan Zhao
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang, Liaoning 110866, P.R. China
| | - Ni Dong
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang, Liaoning 110866, P.R. China
| | - Hong-Tao Man
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang, Liaoning 110866, P.R. China
| | - Zhong-Lin Fu
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang, Liaoning 110866, P.R. China
| | - Mei-Hong Zhang
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang, Liaoning 110866, P.R. China
| | - Shuang Kou
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang, Liaoning 110866, P.R. China
| | - Shi-Liang Ma
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang, Liaoning 110866, P.R. China
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Chemopreventive effects of Ginkgo biloba extract in estrogen-negative human breast cancer cells. Arch Pharm Res 2013; 36:102-8. [PMID: 23335025 DOI: 10.1007/s12272-013-0002-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Excessive level of estrogen is considered as a main cause of breast cancer, therefore, many studies have focused on estrogen receptor (ER)-positive breast cancer, even though ER-negative cancer has a poor prognosis than ER-positive breast cancer. We evaluated the anti-cancer effects of Ginkgo biloba extract (GBE) in estrogen-independent breast cancer. GBE has been traditionally used as a platelet activating factor, a circulatory stimulant, a tonic, and anti-asthmatic drug, and anti-cancer agent. However, anti-cancer effects of GBE on ER-negative breast cancer have not been proved yet. In this study, we tested chemotherapeutic potential of GBE in the MDA-MB-231 (ER-negative) human breast cancer cell line. Our results showed that cytotoxicity effects of GBE in MDA-MB-231 lead to DNA fragmentation at high concentrations (500 and 1,000 μg/ml). Caspase-3 was significantly activated and mRNA levels of apoptosis-related genes (Bcl-2 and Bax) were altered. These results indicate that GBE induces apoptosis in MDA-MB-231 cells. It is presumed that GBE has chemopreventive effects in ER-independent breast cancer through anti-proliferation and apoptosis-inducing activities.
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Dias MC, Furtado KS, Rodrigues MAM, Barbisan LF. Effects of Ginkgo biloba on chemically-induced mammary tumors in rats receiving tamoxifen. Altern Ther Health Med 2013; 13:93. [PMID: 23634930 PMCID: PMC3655872 DOI: 10.1186/1472-6882-13-93] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2012] [Accepted: 04/24/2013] [Indexed: 11/26/2022]
Abstract
Background Ginkgo biloba extract (GbE) is used extensively by breast cancer patients undergoing treatment with Tamoxifen (TAM). Thus, the present study investigated the effects of GbE in female Sprague–Dawley (SD) rats bearing chemically-induced mammary tumors and receiving TAM. Methods Animals bearing mammary tumors (≥1 cm in diameter) were divided into four groups: TAM [10 mg/kg, intragastrically (i.g.)], TAM plus GbE [50 and 100 mg/kg, intraperitoneally (i.p.)] or an untreated control group. After 4 weeks, the therapeutic efficacy of the different treatments was evaluated by measuring the tumor volume (cm3) and the proportions of each tumor that were alive, necrotic or degenerative (mm2). In addition, labeling indexes (LI%) were calculated for cell proliferation (PCNA LI%) and apoptosis (cleaved caspase-3 LI%), expression of estrogen receptor-alpha (ER-α) and p63 biomarkers. Results Overall, the tumor volume and the PCNA LI% within live tumor areas were reduced by 83% and 99%, respectively, in all TAM-treated groups when compared to the untreated control group. GbE treatment (100 mg/kg) reduced the proportions of live (24.8%) and necrotic areas (2.9%) (p = 0.046 and p = 0.038, respectively) and significantly increased the proportion of degenerative areas (72.9%) (p = 0.004) in mammary tumors when compared to the group treated only with TAM. The expression of ER-α, p63 and cleaved caspase-3 in live tumor tissues was not modified by GbE treatment. Conclusions Co-treatment with 100 mg/kg GbE presented a slightly beneficial effect on the therapeutic efficacy of TAM in female SD rats bearing mammary tumors.
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Action Mechanism of Ginkgo biloba Leaf Extract Intervened by Exercise Therapy in Treatment of Benign Prostate Hyperplasia. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2013; 2013:408734. [PMID: 23690843 PMCID: PMC3652168 DOI: 10.1155/2013/408734] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/11/2012] [Revised: 01/26/2013] [Accepted: 01/26/2013] [Indexed: 01/21/2023]
Abstract
Benign prostatic hyperplasia (BPH), an imbalance between androgen/estrogen,
overexpression of stromal, and epithelial growth factors associated with chronic inflammation, has become an atypical direct cause of mortality of aged male diseases. Ginkgo possesses anti-inflammatory, blood flow-enhancing, and free radical scavenging effects. Considering strenuous exercise can reduce BPH risks, we hypothesize Ginkgo + exercise (Ginkgo + Ex) could be beneficial to BPH. To verify this, rat BPH model was induced by s.c. 3.5 mg testosterone (T) and 0.1 mg estradiol (E2) per head per day successively for 8 weeks, using mineral oil as placebo. Cerenin® 8.33 μL/100 g was applied s.c. from the 10th to the 13th week, and simultaneously, Ex was applied (30 m/min, 3 times/week). In BPH, Ginkgo alone had no effect on T, 5α-reductase, and dihydrotestosterone (DHT), but suppressed androgen receptor (AR), aromatase, E2 and estrogen receptor (ER), and the proliferating cell nuclear antigen (PCNA); Ex alone significantly reduced T, aromatase, E2, ER, AR, and PCNA, but highly raised DHT. While Ginkgo + Ex androgenically downregulated T, aromatase, E2, and ER, but upregulated DHT, AR, and PCNA, implying Ginkgo + Ex tended to worsen BPH. Conclusively, Ginkgo or Ex alone may be more beneficial than Ginkgo + Ex for treatment of BPH.
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Vardy J, Dhillon HM, Clarke SJ, Olesen I, Leslie F, Warby A, Beith J, Sullivan A, Hamilton A, Beale P, Rittau A, McLachlan AJ. Investigation of herb-drug interactions with ginkgo biloba in women receiving hormonal treatment for early breast cancer. SPRINGERPLUS 2013; 2:126. [PMID: 23596562 PMCID: PMC3625417 DOI: 10.1186/2193-1801-2-126] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/08/2013] [Accepted: 03/08/2013] [Indexed: 11/10/2022]
Abstract
Women receiving treatment for breast cancer commonly ingest herbal medicines. Little is known about the potential for herb-drug interactions in this population. The aim of this study is to investigate the effect of ginkgo biloba co-administration on the pharmacokinetics of tamoxifen, anastrozole and letrozole. This was a prospective open-label cross-over study in 60 women with early stage breast cancer taking either tamoxifen, anastrozole or letrozole (n=20/group). Participants received ginkgo biloba (EGb 761) for 3 weeks (120 mg twice daily). Trough concentrations of drugs were measured before and after ginkgo biloba treatment using LC-MS/MS. Toxicities were graded according to National Cancer Institute Common Terminology Criteria for Adverse Events. Trough concentrations before and after treatment with ginkgo biloba were not significantly different for tamoxifen (93.5 ± 29.0, 86.5 ± 25.3 ng/mL; p=0.16), letrozole (91.1 ± 50.4, 89.6 ± 52.14 ng/mL; p=0.60) or anastrozole (29.1 ± 8.6, 29.1 ± 7.6 ng/mL; p=0.97). Ginkgo biloba was well tolerated, with no difference in toxicity during ginkgo biloba. Co-administration of ginkgo biloba does not significantly affect the pharmacokinetics of tamoxifen, anastrozole or letrozole. There was no difference in the toxicity profile of hormone therapy with ginkgo biloba use in women with early stage breast cancer.
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Affiliation(s)
- Janette Vardy
- Sydney Medical School, University of Sydney, Sydney, NSW 2006 Australia ; Sydney Cancer Centre, Royal Prince Alfred and Concord Hospitals, Sydney, Australia ; Centre for Medical Psychology and Evidence-based Decision Making, University of Sydney, Sydney, Australia ; Psycho-oncology Co-operative Research Group, University of Sydney, Sydney, Australia
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Kim MJ, Park YJ, Chung KH, Oh SM. The Inhibitory Effects of the Standardized Extracts of Ginkgo biloba
on Aromatase Activity in JEG-3 Human Choriocarcinoma Cells. Phytother Res 2013; 27:1756-62. [DOI: 10.1002/ptr.4927] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2012] [Revised: 12/18/2012] [Accepted: 12/18/2012] [Indexed: 11/09/2022]
Affiliation(s)
- Mi Jie Kim
- School of Pharmacy; Sungkyunkwan University; 300 Cheoncheon dong Jangan-gu, Suwon Kyeonggi-do 440-746 South Korea
| | - Yong Joo Park
- School of Pharmacy; Sungkyunkwan University; 300 Cheoncheon dong Jangan-gu, Suwon Kyeonggi-do 440-746 South Korea
| | - Kyu Hyuck Chung
- School of Pharmacy; Sungkyunkwan University; 300 Cheoncheon dong Jangan-gu, Suwon Kyeonggi-do 440-746 South Korea
| | - Seung Min Oh
- Hoseo Fusion Technology Laboratory; Hoseo University; 165 Sechul-ri, Asan ChungcheongNam-do 336-795 South Korea
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Powell JB, Goode GD, Eltom SE. The Aryl Hydrocarbon Receptor: A Target for Breast Cancer Therapy. ACTA ACUST UNITED AC 2013; 4:1177-1186. [PMID: 25068070 PMCID: PMC4111475 DOI: 10.4236/jct.2013.47137] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The aryl hydrocarbon receptor (AhR) is a ligand-activated transcription factor that regulates a battery of genes in response to exposure to a broad class of environmental poly aromatic hydrocarbons (PAH). AhR is historically characterized for its role in mediating the toxicity and adaptive responses to these chemicals, however mounting evidence has established a role for it in ligand-independent physiological processes and pathological conditions, including cancer. The AhR is overexpressed and constitutively activated in advanced breast cancer cases and was shown to drive the progression of breast cancer. In this article we will review the current state of knowledge on the possible role of AhR in breast cancer and how it will be exploited in targeting AhR for breast cancer therapy.
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Affiliation(s)
- Joann B Powell
- Department of Biological Sciences & Center for Cancer Research and Therapeutic Development, Clark Atlanta University, Atlanta, USA
| | - Gennifer D Goode
- Department of Biochemistry & Cancer Biology, Meharry Medical College, Nashville, USA
| | - Sakina E Eltom
- Department of Biochemistry & Cancer Biology, Meharry Medical College, Nashville, USA
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ElMazoudy RH, Attia AA. Efficacy ofGinkgo bilobaon Vaginal Estrous and Ovarian Histological Alterations for Evaluating Anti-Implantation and Abortifacient Potentials in Albino Female Mice. ACTA ACUST UNITED AC 2012; 95:444-59. [DOI: 10.1002/bdrb.21032] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2012] [Accepted: 11/02/2012] [Indexed: 01/13/2023]
Affiliation(s)
- Reda H. ElMazoudy
- Zoology Department; Faculty of Science; Alexandria University; Alexandria; Egypt
| | - Azza A. Attia
- Zoology Department; Faculty of Science; Alexandria University; Alexandria; Egypt
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Ribonnet L, van der Heiden E, Nobels I, Chaumont A, Remacle AS, De Saeger S, Schneider YJ, Scippo ML, Blust R, Pussemier L, Larondelle Y. Potential of an in vitro toolbox combined with exposure data as a first step for the risk assessment of dietary chemical contaminants. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2011; 28:1136-58. [PMID: 21762035 DOI: 10.1080/19440049.2011.584069] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
In vitro risk assessment of dietary contaminants has become a priority in human food safety. This paper proposes an in vitro approach associating different complementary tools in an original toolbox and aims to improve the assessment of the toxicological impact of dietary contaminants at realistic human exposure levels, with a special focus on the intestinal compartment. The system is based on the use of four complementary cellular tools, namely stress gene induction in transgenic strains of Escherichia coli, modulation of the activity of key biotransformation enzymes (cytochrome P-450 (CYP) 1A1 and 3A4) in a human intestinal cell line, and activation of aryl hydrocarbon receptor (AhR) and oestrogenic receptor (ER)-dependent genes in agonistic and antagonistic assays with luciferase reporter cells. It was applied to four chosen model molecules: ochratoxin A (OTA) and deoxynivalenol (DON), two common food-borne mycotoxins, and imazalil (IMA) and benomyl (BEN), two fungicides widely occurring in foodstuffs. All these assays were performed at or around a realistic intestinal concentration, determined through a deterministic approach based on the calculation of a theoretical maximum daily intake (TMDI). Using the four model molecules, it is clearly highlighted that induction of CYP1A1 activity and inhibition of CYP3A4 activity occurred in Caco-2 cells at a realistic intestinal concentration of IMA. Furthermore, some bacterial stress genes were induced in a range of realistic concentrations, following exposure to DON and IMA. In addition, BEN clearly provoked an ER agonistic activity in a human oestrogen sensitive reporter cell line. All these results are in accordance with the literature, suggesting that the in vitro toolbox constitutes an interesting approach in order to obtain a first 'fingerprint' of dietary contaminants at realistic human exposure for further risk assessment.
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Affiliation(s)
- L Ribonnet
- Institut des Sciences de la Vie, Université catholique de Louvain, Croix du Sud 2/8 and 5/3, B-1348 Louvain-la-Neuve, Belgium
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Ribonnet L, Callebaut A, Nobels I, Scippo ML, Schneider YJ, De Saeger S, Pussemier L, Larondelle Y. Modulation of CYP1A1 activity by a Ginkgo biloba extract in the human intestinal Caco-2 cells. Toxicol Lett 2011; 202:193-202. [DOI: 10.1016/j.toxlet.2011.02.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2010] [Revised: 02/04/2011] [Accepted: 02/07/2011] [Indexed: 01/10/2023]
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Gamal EM, Aly EM, Mahmoud SS, Talaat MS, Sallam ASM. FTIR Assessment of the Effect of Ginkgo biloba Leave Extract (EGb 761) on Mammalian Retina. Cell Biochem Biophys 2011; 61:169-77. [DOI: 10.1007/s12013-011-9173-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Zaid SSM, Sulaiman SA, Sirajudeen KNM, Othman NH. The effects of Tualang honey on female reproductive organs, tibia bone and hormonal profile in ovariectomised rats--animal model for menopause. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2010; 10:82. [PMID: 21194469 PMCID: PMC3022897 DOI: 10.1186/1472-6882-10-82] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/03/2010] [Accepted: 12/31/2010] [Indexed: 01/04/2023]
Abstract
Background Honey is a highly nutritional natural product that has been widely used in folk medicine for a number of therapeutic purposes. We evaluated whether Malaysian Tualang honey (AgroMas, Malaysia) was effective in reducing menopausal syndrome in ovariectomised female rats; an animal model for menopause. Methods The rats were divided into two control groups and three test groups. The control groups were sham-operated (SH) and ovariectomised (OVX) rats. The SH and OVX control rats were fed on 0.5 ml of distill water. The rats in the test groups were fed with low dose 0.2 g/kg (THL), medium dose, 1.0 g/kg (THM) and high dose 2.0 g/kg (THH) of Tualang honey in 0.5 ml of distill water. The administration was given by oral gavage once daily for 2 weeks. The reproductive organs (uterus and vagina), tibia bone and aorta were taken for histopathological examination while serum for hormonal assays. Results Administration of Tualang honey for 2 weeks to ovariectomised rats significantly increased the weight of the uterus and the thickness of vaginal epithelium, restored the morphology of the tibia bones and reduced the body weight compared to rats in the ovariectomised group. The levels of estradiol and progesterone, in honey treated groups were markedly lower than that in the OVX group. At low doses (0.2 g/kg; THL group) of Tualang honey there was an increased in serum free testosterone levels compared to OVX group (P < 0.01). Progesterone concentrations was significantly decreased in the OVX group as compared to SHAM group (P < 0.05). Conclusions Tualang honey was shown to have beneficial effects on menopausal (ovariectomised) rats by preventing uterine atrophy, increased bone density and suppression of increased body weight. Honey could be an alternative to HRT.
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Fernandes ES, Pinto RM, de Paula Reis JE, de Oliveira Guerra M, Peters VM. Effects of Ginkgo biloba extract on the embryo-fetal development in Wistar rats. ACTA ACUST UNITED AC 2010; 89:133-8. [PMID: 20437472 DOI: 10.1002/bdrb.20235] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUND Ginkgo biloba extract (GBE) is an herbal medicine used for treating neurodegenerative diseases, cerebrovascular insufficiency, peripheral arterial occlusive disease, and also vestibular disturbance. Some components of GBE have presented estrogenic effects and, in a previous study, high dosages of GBE caused intra-uterine growth retardation in fetuses of Wistar rats treated during the fetogenesis period. METHODS Pregnant Wistar rats were treated, through gavage, with different dosages of aqueous GBE (3.5, 7.0, and 14.0 mg/Kg/day), during the tubal transit and implantation period. Rats were killed on the 15th day of pregnancy and the following parameters were evaluated: clinical symptoms of maternal toxicity; maternal body weight; feed and water intake; maternal liver, kidney, and ovary weights; number of corpora lutea; implants per group ratio; pre- and post-implantation loss per group ratio; live fetuses mean; dead fetuses percentage; fetus and placenta weight per offspring ratio; and fetal external malformation. RESULTS No significant alteration was found for both the maternal and embryonic parameters evaluated. CONCLUSIONS The GBE treatment in pregnant Wistar rats, during the tubal transit and implantation period, caused no toxic effect on the maternal organism and did not induce embryonic death, growth retardation, and/or fetal malformations.
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Rajaraman G, Yang G, Chen J, Chang TK. Modulation of CYP1B1 and CYP1A1 gene expression and activation of aryl hydrocarbon receptor by Ginkgo biloba extract in MCF-10A human mammary epithelial cells. Can J Physiol Pharmacol 2009; 87:674-83. [DOI: 10.1139/y09-061] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The aryl hydrocarbon receptor (AhR) signaling pathway regulates the production of CYP1B1 and CYP1A1, which catalyze the bioactivation of various procarcinogens. In the present study, we investigated the effect of Ginkgo biloba extract and some of its chemical constituents on CYP1B1 and CYP1A1 gene expression and AhR activity in cultured MCF-10A human mammary epithelial cells. Treatment of MCF-10A cells with noncytotoxic concentrations of G. biloba extract (25–300 µg/mL for 24 or 48 h) increased CYP1B1 and CYP1A1 mRNA expression, which was accompanied by an increase in CYP1-mediated ethoxyresorufin O-dealkylation activity. The inductive effects of G. biloba extract were attenuated by an AhR antagonist (3′,4′-dimethoxyflavone). G. biloba extract (25–300 µg/mL) increased AhR-dependent reporter activity, as determined in MCF-10A cells transfected with an AhR-regulated luciferase reporter plasmid (pGudluc6.1). Bilobalide and ginkgolides A, B, C, and J were not responsible for the modulation of CYP1B1 and CYP1A1 gene expression or AhR activation by G. biloba extract. In contrast, quercetin increased CYP1B1 and CYP1A1 gene expression and activated AhR, whereas kaempferol and isorhamnetin suppressed constitutive CYP1B1 expression and antagonized AhR activation by benzo[a]pyrene. Overall, our findings provide an impetus for future investigations on the effect of G. biloba extract in CYP1-mediated chemical carcinogenesis.
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Affiliation(s)
- Ganesh Rajaraman
- Faculty of Pharmaceutical Sciences, The University of British Columbia, Vancouver, BC, V6T 1Z3, Canada
| | - Guixiang Yang
- Faculty of Pharmaceutical Sciences, The University of British Columbia, Vancouver, BC, V6T 1Z3, Canada
| | - Jie Chen
- Faculty of Pharmaceutical Sciences, The University of British Columbia, Vancouver, BC, V6T 1Z3, Canada
| | - Thomas K.H. Chang
- Faculty of Pharmaceutical Sciences, The University of British Columbia, Vancouver, BC, V6T 1Z3, Canada
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Trivedi R, Kumar A, Gupta V, Kumar S, Nagar GK, Romero JR, Dwivedi AK, Chattopadhyay N. Effects of Egb 761 on bone mineral density, bone microstructure, and osteoblast function: Possible roles of quercetin and kaempferol. Mol Cell Endocrinol 2009; 302:86-91. [PMID: 19356626 DOI: 10.1016/j.mce.2009.01.011] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2008] [Revised: 01/07/2009] [Accepted: 01/15/2009] [Indexed: 11/19/2022]
Abstract
The effects of standardized and concentrated extract of Ginkgo biloba, Egb 761, were studied on estrogen deficiency-induced bone loss in ovariectomized (OVx) rats rendered osteopenic. Upon osteopenia development, Egb 761 was administered at a dose of 100mgkg(?1)day(?1) by oral gavage to OVx rats whereas control group received vehicle. Following 5 weeks of treatment, the OVx+Egb 761 group (n=12) of rats exhibited significantly higher whole body BMD and lower bone turnover markers (serum alkaline phosphatase and osteocalcin) than OVx rats that were given vehicle (n=12). BMD levels in excised bones were also found to be higher in both trabecular (most robustly in lumbar vertebrae) and cortical bones of OVx+Egb 761 compared with OVx+vehicle group. Egb 761 did not exhibit estrogen agonistic activity at the uterine level. Microcomputed tomography demonstrated that OVx+Egb 761 group had better bone microarchitectural parameters compared with OVx+vehicle group. Moreover, OVx+Egb 761 group had higher femoral mRNA levels of osterix, type I collagen and osteocalcin compared with OVx+vehicle group. Determination of levels of three flavonoids of Egb 761, that are known to have bone conserving property, in serum and bone marrow suggests that kaempferol and quercetin, and not rutin, likely mediate the beneficial actions observed with Egb 761 treatment. These results show for the first time that oral administration of Egb 761 restores bone mass in aged OVx rats.
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Affiliation(s)
- Ritu Trivedi
- Division of Endocrinology, Central Drug Research Institute (Council of Scientific and Industrial Research), Chattar Manzil, Lucknow, India.
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van Patot MCT, Keyes LE, Leadbetter G, Hackett PH. Ginkgo bilobafor Prevention of Acute Mountain Sickness: Does It Work? High Alt Med Biol 2009; 10:33-43. [DOI: 10.1089/ham.2008.1085] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Affiliation(s)
- Martha C. Tissot van Patot
- Department of Anesthesiology, University of Colorado Denver, Aurora, Colorado
- Altitude Research Center, Division of Emergency Medicine, Department of Surgery, University of Colorado, Denver Colorado
| | - Linda E. Keyes
- Altitude Research Center, Division of Emergency Medicine, Department of Surgery, University of Colorado, Denver Colorado
| | - Guy Leadbetter
- Department of Exercise Physiology, Mesa State College, Grand Junction, Colorado
| | - Peter H. Hackett
- Altitude Research Center, Division of Emergency Medicine, Department of Surgery, University of Colorado, Denver Colorado
- Institute for Altitude Medicine, Telluride, Colorado
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Sarić A, Balog T, Sobocanec S, Kusić B, Sverko V, Rusak G, Likić S, Bubalo D, Pinto B, Reali D, Marotti T. Antioxidant effects of flavonoid from Croatian Cystus incanus L. rich bee pollen. Food Chem Toxicol 2008; 47:547-54. [PMID: 19124059 DOI: 10.1016/j.fct.2008.12.007] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2008] [Revised: 12/04/2008] [Accepted: 12/08/2008] [Indexed: 01/22/2023]
Abstract
Oxidant/antioxidant status, estrogenic/anti-estrogenic activity and gene expression profile were studied in mice fed with Cystus incanus L. (Cistaceae) reach bee pollen from location in Central Croatia's Dalmatia coast and offshore islands. Seven phenolic compounds (out of 13 tested) in bee pollen sample were detected by high performance liquid chromatography (HPLC) analysis. Phenolics detected in C. incanus L. bee pollen belong to flavonol (pinocembrin), flavanols (quercetin, kaempferol, galangin, and isorhamnetin), flavones (chrysin) and phenylpropanoids (caffeic acid). Bee pollen as a food supplement (100mg/kgbw mixed with commercial food pellets) compared to control (commercial food pellets) modulated antioxidant enzymes (AOE) in the mice liver, brain and lysate of erythrocytes and reduced hepatic lipid peroxidation (LPO). Bee pollen induced 25% of anti-estrogenic properties while no estrogenic activity was found. Differential gene expression profile analyses after bee pollen enriched diet identify underexpressed gene Hspa9a, Tnfsf6 (liver) and down-regulated gene expression of Casp 1 and Cc121c (brain) which are important in the apoptosis pathway and chemotaxis. These results indicate that used bee pollen possess a noticable source of compounds with health protective potential and antioxidant activity.
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Affiliation(s)
- Ana Sarić
- Division of Molecular Medicine, Rudjer Bosković Institute, Bijenicka 54, 10000 Zagreb, Croatia
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de Faria DEP, Borges LV, Peters VM, Reis JEDP, Ribeiro LC, de Cássia da Silveira E Sá R, Guerra MDO. Postnatal development of pups from nursing rats treated with Gingko biloba. Phytother Res 2008; 22:185-9. [PMID: 17726727 DOI: 10.1002/ptr.2282] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The Gingko biloba extract is contraindicated during pregnancy and lactation due to the lack of information about its effects on these reproductive phases. Previous studies have shown that G. biloba extract contains components with estrogenic and antiestrogenic activities, thus nursing dams treated with the extract of this plant could show reduction in milk production, resulting in malnutrition and poor development of pups. This work analyzes the postnatal development of pups, whose mothers were treated with G. biloba extract during the lactation period. Nursing Wistar rats received 3.5 mg/kg/day of G. biloba aqueous extract, corresponding to the highest human dose. Clinical signs of maternal toxicity were evaluated. The growth rate, viability, survival during treatment and lactation indices of the pups were calculated. The physical, motor and sensorial development of the pups was also evaluated. No maternal signs of toxicity were observed. As there were no biological differences between control and G. biloba treated pups, it is possible to assume that, in this experimental design, the administration of G. biloba aqueous extract to nursing rats during the lactation period seems to be devoid of toxic effect to mothers and to the physical, motor and sensory development of the pups.
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Affiliation(s)
- Dieime Elaine Pereira de Faria
- Centro de Biologia da Reprodução, Universidade Federal de Juiz de Fora, caixa postal 328, CEP 36001-970, Juiz de Fora, MG, Brazil
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Effects of ginkgo biloba on in vitro osteoblast cells and ovariectomized rat osteoclast cells. Arch Pharm Res 2008; 31:216-24. [DOI: 10.1007/s12272-001-1144-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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