1
|
Paździora W, Paśko P, Grabowska K, Galanty A. Can Isoflavone-Rich Legume Plants Be Useful in the Chemoprevention of Hormone-Dependent Cancers?-A Systematic Review. Int J Mol Sci 2024; 25:7389. [PMID: 39000493 PMCID: PMC11242776 DOI: 10.3390/ijms25137389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2024] [Revised: 07/02/2024] [Accepted: 07/03/2024] [Indexed: 07/16/2024] Open
Abstract
Plants from the Fabaceae family are widely distributed around the world, especially in Europe, Asia and North America. They are a rich source of isoflavones, compounds with estrogen-like activity, which are suspected of having a chemopreventive effect against hormone-dependent cancers. Following the PRISMA guidelines, we conducted a systematic review aimed at assessing the impact of Fabaceae plant extracts on hormone-dependent cancer cells and the content of active compounds in plant raw materials. We analyzed the results of 63 articles from in vitro and in vivo studies describing the effect of plant extracts containing isoflavones on cancer cells, along with their anti-inflammatory and antioxidant potential. In the process, we determined the research limitations and future research directions. The collected results indicate the plant species with potentially high contents of phytoestrogens and anti-inflammatory, antioxidant and cytotoxic properties. They point to the potential use of plants in the diet as a source of compounds offering cancer prevention.
Collapse
Affiliation(s)
- Wojciech Paździora
- Department of Pharmacognosy, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland; (W.P.); (K.G.)
- Doctoral School of Medical and Health Sciences, Jagiellonian University Medical College, 16 Łazarza Str., 31-530 Cracow, Poland
| | - Paweł Paśko
- Department of Food Chemistry and Nutrition, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland;
| | - Karolina Grabowska
- Department of Pharmacognosy, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland; (W.P.); (K.G.)
| | - Agnieszka Galanty
- Department of Pharmacognosy, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland; (W.P.); (K.G.)
| |
Collapse
|
2
|
Mikulić M, Atanacković Krstonošić M, Kladar N, Vasiljević S, Katanski S, Mamlić Z, Rakić D, Cvejić J. Phytochemical Composition of Different Red Clover Genotypes Based on Plant Part and Genetic Traits. Foods 2023; 13:103. [PMID: 38201131 PMCID: PMC10778848 DOI: 10.3390/foods13010103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 12/21/2023] [Accepted: 12/22/2023] [Indexed: 01/12/2024] Open
Abstract
Red clover (Trifolium pratense L.) is an important legume that is also known as a rich source of isoflavones, which are compounds with mild estrogenic activity. Therefore, this plant is often used as a raw material in the production of dietary supplements recommended in menopause. Many factors can influence isoflavone content, but those genetically related are considered to be the most important. Therefore, the aim of this study was to evaluate the phytochemical profile of different plant parts of 30 red clover genotypes grouped according to ploidy and country of seed origin by analyzing the content of dominant isoflavones, total phenolic content (TPC) and antioxidant activity. It was found that there are significant differences in the examined traits among plant parts. Red clover leaves had the highest total isoflavone content, with biochanin A as the dominant compound, while flower extracts had the highest TPC and antioxidant activity. Diploid and tetraploid genotypes were significantly different concerning the content of daidzein, genistein, formononetin and TPC with higher quantities in tetraploid samples. On the other hand, seed origin was not a useful separating factor for the analyzed samples. The results of this research indicate that ploidy, as a previously poorly studied factor, could influence isoflavone content in red clover.
Collapse
Affiliation(s)
- Mira Mikulić
- Department of Pharmacy, Faculty of Medicine, University of Novi Sad, Hajduk Veljkova 3, 21000 Novi Sad, Serbia; (M.M.); (N.K.); (J.C.)
| | - Milica Atanacković Krstonošić
- Department of Pharmacy, Faculty of Medicine, University of Novi Sad, Hajduk Veljkova 3, 21000 Novi Sad, Serbia; (M.M.); (N.K.); (J.C.)
| | - Nebojša Kladar
- Department of Pharmacy, Faculty of Medicine, University of Novi Sad, Hajduk Veljkova 3, 21000 Novi Sad, Serbia; (M.M.); (N.K.); (J.C.)
| | - Sanja Vasiljević
- Institute of Field and Vegetable Crops, National Institute of the Republic of Serbia, Maksima Gorkog 30, 21000 Novi Sad, Serbia; (S.V.); (S.K.); (Z.M.)
| | - Snežana Katanski
- Institute of Field and Vegetable Crops, National Institute of the Republic of Serbia, Maksima Gorkog 30, 21000 Novi Sad, Serbia; (S.V.); (S.K.); (Z.M.)
| | - Zlatica Mamlić
- Institute of Field and Vegetable Crops, National Institute of the Republic of Serbia, Maksima Gorkog 30, 21000 Novi Sad, Serbia; (S.V.); (S.K.); (Z.M.)
| | - Dušan Rakić
- Department of Basic Engineering Disciplines, Faculty of Technology, University of Novi Sad, Bulevar cara Lazara 1, 21000 Novi Sad, Serbia;
| | - Jelena Cvejić
- Department of Pharmacy, Faculty of Medicine, University of Novi Sad, Hajduk Veljkova 3, 21000 Novi Sad, Serbia; (M.M.); (N.K.); (J.C.)
| |
Collapse
|
3
|
Sadighara P, Mahdavi V, Tahmasebi R, Saatloo NV. Cell proliferation assay for determination of estrogenic components in food: a systematic review. REVIEWS ON ENVIRONMENTAL HEALTH 2023; 38:621-627. [PMID: 35934880 DOI: 10.1515/reveh-2022-0035] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 06/29/2022] [Indexed: 06/15/2023]
Abstract
Due to the widespread use and environmental pollution of estrogenic chemicals, the need for screening tests to detect these compounds is felt more than ever. These compounds lead to cell proliferation. Therefore, studies used cell proliferation to evaluate estrogenic compounds was studied in this systematic review. This systematic review was performed with the keywords; DNA proliferation, cell proliferation, estrogenic component, estrogen, food, bioassay, screening, and detection. After initial screening and full text quality assessment, 16 manuscripts were selected and data were extracted. Four cell lines, MCF-7, MDA-MB-231, Ishikawa, and T47D cells were used in the studies. MCF-7 was more sensitive to estrogenic compounds than other lines. Most of the samples studied were plant compounds and mycotoxins and substances that migrate from packaging to food. This screening test is valid and has similar results as others.
Collapse
Affiliation(s)
- Parisa Sadighara
- Department of Environmental Health, Food Safety Division, Faculty of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Vahideh Mahdavi
- Iranian Research Institute of Plant Protection (IRIPP), Agricultural Research, Education and Extension Organization (AREEO), Tehran, Iran
| | - Rahele Tahmasebi
- Research and Department of Chromatography, Iranian Academic Center for Education, Culture and Research (ACECR), Urmia, Iran
| | - Naiema Vakili Saatloo
- Department of Food Hygiene and Quality Control, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
| |
Collapse
|
4
|
Payette M, Lima MRM, Coleman WM, Ashraf-Khorassani M. Separation optimization and quantitative analysis of phytoestrogens employing reverse-phase high-performance liquid chromatography with UV-VIS detection. J LIQ CHROMATOGR R T 2022. [DOI: 10.1080/10826076.2022.2110118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Affiliation(s)
- Michael Payette
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia, USA
| | - Marta R. M. Lima
- School of Plant & Environmental Sciences Blacksburg, Virginia Tech, Blacksburg, Virginia, USA
| | | | | |
Collapse
|
5
|
Błaszczuk A, Barańska A, Kanadys W, Malm M, Jach ME, Religioni U, Wróbel R, Herda J, Polz-Dacewicz M. Role of Phytoestrogen-Rich Bioactive Substances ( Linum usitatissimum L., Glycine max L., Trifolium pratense L.) in Cardiovascular Disease Prevention in Postmenopausal Women: A Systematic Review and Meta-Analysis. Nutrients 2022; 14:2467. [PMID: 35745197 PMCID: PMC9228013 DOI: 10.3390/nu14122467] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 06/11/2022] [Accepted: 06/12/2022] [Indexed: 02/05/2023] Open
Abstract
The aim of this report was to determine the impact of flaxseed, soy and red clover, and their bioactive substances on the lipid profile in postmenopausal women in cardiovascular diseases prevention. We used the following databases: MEDLINE (PubMed), EMBASE and the Cochrane Library. Meta-analysis indicates that the intake of flaxseed by postmenopausal women is associated with a statistically significant reduction in total cholesterol (TC) levels (weighted-mean difference (WMD) = -0.26; 95% confidence interval (95% CI): -0.38 to -0.13; p = 0.0001), low-density lipoprotein cholesterol (LDL-C) levels (WMD = -0.19; 95% CI: -0.30 to -0.08; p = 0.0006), and high-density lipoprotein cholesterol (HDL-C) levels (WMD = -0.06; 95% CI: -0.11 to -0.01; p = 0.0150). The effect of soy protein on the lipid profile showed a significant decrease in TC levels: WMD = -0.15; 95% CI: -0.25-0.05; p = 0.0048, LDL-C levels: WMD = -0.15; 95% CI: -0.25-0.05; p = 0.0067, as well as a significant increase in HDL-C levels: WMD = 0.05; 95% CI: 0.02-0.08; p = 0.0034. Changes in the lipid profile showed a significant reduction in TC levels after the use of red clover (WMD = -0.11; 95% CI: -0.18--0.04; p = 0.0017) and a significant increase in HDL-C levels (WMD = 0.04; 95% CI: 0.01 to 0.07; p = 0.0165). This meta-analysis provides evidence that consuming flaxseed, soy and red clover can have a beneficial effect on lipids in postmenopausal women and suggest a favorable effect in preventing cardiovascular diseases.
Collapse
Affiliation(s)
- Agata Błaszczuk
- Department of Virology with SARS Laboratory, Medical University of Lublin, 20-093 Lublin, Poland; (A.B.); (M.P.-D.)
| | - Agnieszka Barańska
- Department of Medical Informatics and Statistics with e-Health Lab, Medical University of Lublin, 20-090 Lublin, Poland;
| | | | - Maria Malm
- Department of Medical Informatics and Statistics with e-Health Lab, Medical University of Lublin, 20-090 Lublin, Poland;
| | - Monika Elżbieta Jach
- Department of Molecular Biology, Faculty of Science and Health, John Paul II Catholic University of Lublin, 20-708 Lublin, Poland;
| | - Urszula Religioni
- School of Public Health, Centre of Postgraduate Medical Education of Warsaw, 01-826 Warsaw, Poland;
| | - Rafał Wróbel
- Department of Developmental Dentistry, Medical University of Lublin, 20-081 Lublin, Poland;
| | - Jolanta Herda
- Department of Public Health, Medical University of Lublin, 20-090 Lublin, Poland;
| | - Małgorzata Polz-Dacewicz
- Department of Virology with SARS Laboratory, Medical University of Lublin, 20-093 Lublin, Poland; (A.B.); (M.P.-D.)
| |
Collapse
|
6
|
Zgórka G, Maciejewska-Turska M, Makuch-Kocka A, Plech T. In Vitro Evaluation of the Antioxidant Activity and Chemopreventive Potential in Human Breast Cancer Cell Lines of the Standardized Extract Obtained from the Aerial Parts of Zigzag Clover (Trifolium medium L.). Pharmaceuticals (Basel) 2022; 15:ph15060699. [PMID: 35745618 PMCID: PMC9229722 DOI: 10.3390/ph15060699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Revised: 05/27/2022] [Accepted: 05/31/2022] [Indexed: 10/28/2022] Open
Abstract
The aboveground parts of Trifolium medium L. (zigzag clover), a little-known representative of the family Fabaceae, collected during flowering in a wild stand (Sławin-Szerokie district, Lublin, Poland), were used in this study. Our previous investigations confirmed the higher content of phytoestrogenic isoflavones (especially biochanin A and formononetin derivatives) in T. medium compared to the closely related medicinal plant T. pratense (red clover) and the involvement of these compounds in anti-osteoporotic effects in ovariectomized female rats. The current study focused on evaluating other antibiodegenerative (antioxidant, chemopreventive, and cytostatic) effects for the lyophilisate (TML) obtained from wild zigzag clover. For this purpose, efficient ultrasound-assisted extraction (UAE) was employed, followed by vacuum drying and phytochemical standardization using a newly developed reversed-phase high-performance liquid chromatography (RP-LC) coupled with a PDA detection. Malonylglycosides of biochanin A and formononetin were the predominant compounds and were found to contribute more than 54% to the total isoflavone content determined in the standardized extract of zigzag clover. The antioxidant potential of TML was examined in vitro using the Folin–Ciocalteu and cupric ion-reducing (CUPRAC) methods in addition to the free radical (DPPH• and ABTS•+) scavenging assays. The cytotoxic effects of TML, formononetin, and ononin were evaluated on MCF-7 (estrogen-dependent) and MDA-MB-231 (estrogen-independent) human breast cancer cell lines using the MTT assay. The important role of malonyl isoflavone derivatives has been indicated both in chemoprevention and potential cytotoxic effects of TML against certain types of breast cancer.
Collapse
Affiliation(s)
- Grażyna Zgórka
- Department of Pharmacognosy with the Medicinal Plant Garden, Faculty of Pharmacy, Medical University of Lublin, 1 Chodźki Str., 20-093 Lublin, Poland;
- Correspondence:
| | - Magdalena Maciejewska-Turska
- Department of Pharmacognosy with the Medicinal Plant Garden, Faculty of Pharmacy, Medical University of Lublin, 1 Chodźki Str., 20-093 Lublin, Poland;
| | - Anna Makuch-Kocka
- Department of Pharmacology, Chair of Pharmacology and Biology, Faculty of Health Sciences, Medical University of Lublin, 20-093 Lublin, Poland; (A.M.-K.); (T.P.)
| | - Tomasz Plech
- Department of Pharmacology, Chair of Pharmacology and Biology, Faculty of Health Sciences, Medical University of Lublin, 20-093 Lublin, Poland; (A.M.-K.); (T.P.)
| |
Collapse
|
7
|
Fu J, Jia Q, Liang P, Wang S, Zhou H, Zhang L, Wang H, Gao C, Lv Y, Han S, He L. Enhanced stability designs of cell membrane chromatography for screening drug leads. J Sep Sci 2022; 45:2498-2507. [PMID: 35561141 DOI: 10.1002/jssc.202200200] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 04/18/2022] [Accepted: 05/09/2022] [Indexed: 11/07/2022]
Abstract
Cell membrane chromatography is an effective method for screening bioactive components acting on specific receptors in complex systems, which maintains the biological activity of the membrane receptors and improves screening efficiency. However, traditional cell membrane chromatography suffers from poor stability, resulting in a limited life span and low reproducibility, greatly limiting the application of this method. To address this problem, cyanuric chloride-decorated silica gel was used for the covalent immobilization of the cell membranes. Cyanuric chloride reacts with amino groups on the cell membranes and membrane receptors to form covalent bonds. In this way, the cell membranes are not easy to fall off. The column life of the cyanuric chloride-decorated epidermal growth factor receptor/cell membrane chromatography column was extended to more than 8 days, whereas the column life of the normal cell membrane chromatography column dropped sharply in the first 3 days. A cyanuric chloride-decorated epidermal growth factor receptor/cell membrane chromatography online HPLC-IT-TOF-MSn system was applied for screening drug leads from Trifolium pratense L.. One potential drug lead, formononetin, which acts on the epidermal growth factor receptor, was screened. Our strategy of covalently immobilizing cell membrane receptors also improved the stability of cell membrane chromatography. This article is protected by copyright. All rights reserved.
Collapse
Affiliation(s)
- Jia Fu
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, 76# Yanta West Road, Xi'an, 710061, China
| | - Qianqian Jia
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, 76# Yanta West Road, Xi'an, 710061, China
| | - Peida Liang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, 76# Yanta West Road, Xi'an, 710061, China
| | - Saisai Wang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, 76# Yanta West Road, Xi'an, 710061, China
| | - Huaxin Zhou
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, 76# Yanta West Road, Xi'an, 710061, China
| | - Liyang Zhang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, 76# Yanta West Road, Xi'an, 710061, China
| | - Hong Wang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, 76# Yanta West Road, Xi'an, 710061, China
| | - Chunlei Gao
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, 76# Yanta West Road, Xi'an, 710061, China
| | - Yanni Lv
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, 76# Yanta West Road, Xi'an, 710061, China
| | - Shengli Han
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, 76# Yanta West Road, Xi'an, 710061, China.,Guangdong Artificial Intelligence and Digital Economy Laboratory (Guangzhou) Implement Planning, No.70 Yuean Road, Haizhu District, Guangzhou, 510289, China
| | - Langchong He
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, 76# Yanta West Road, Xi'an, 710061, China.,Guangdong Artificial Intelligence and Digital Economy Laboratory (Guangzhou) Implement Planning, No.70 Yuean Road, Haizhu District, Guangzhou, 510289, China
| |
Collapse
|
8
|
Kazlauskaite JA, Ivanauskas L, Marksa M, Bernatoniene J. The Effect of Traditional and Cyclodextrin-Assisted Extraction Methods on Trifolium pratense L. (Red Clover) Extracts Antioxidant Potential. Antioxidants (Basel) 2022; 11:antiox11020435. [PMID: 35204317 PMCID: PMC8868588 DOI: 10.3390/antiox11020435] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 02/10/2022] [Accepted: 02/14/2022] [Indexed: 11/25/2022] Open
Abstract
Red clover is the subject of numerous studies because of its antioxidant properties, the positive influence of isoflavones on the health, and its potential use in the prevention and treatment of chronic diseases. The right excipients, such as cyclodextrins, can increase the profile of valuable phenolic compounds in extraction media to obtain rich in antioxidants, extracts that can be used in nutraceuticals production. The aim of this study was to investigate and compare the total phenolic content, flavonoid content, and antioxidant activity of red clover aerial parts, aqueous and ethanolic extracts prepared using traditional and cyclodextrins-assisted methods. The antioxidant activity of the extracts was established using ABTS, DPPH, FRAP, and ABTS-post column methods. It was determined that cyclodextrins significantly increased total phenolic content (compared with control)—using β-cyclodextrin 20.29% (in aqueous samples); γ-cyclodextrin 22.26% (in ethanolic samples). All the samples prepared with excipients demonstrated a strong relationship between total phenolic content and DPPH assay. Study showed that for extraction with water, the highest amounts of phenolic compounds, flavonoids and antioxidant activity will be achieved with β-cyclodextrin, but extractions with ethanol will give the best results with γ-cyclodextrin. Therefore, cyclodextrins are a great and safe tool for obtaining rich, red clover flower extracts that are high in antioxidant activity, which can be used in the pharmaceutical industry for nutraceuticals production.
Collapse
Affiliation(s)
- Jurga Andreja Kazlauskaite
- Department of Drug Technology and Social Pharmacy, Lithuanian University of Health Sciences, LT-50161 Kaunas, Lithuania;
- Institute of Pharmaceutical Technologies, Lithuanian University of Health Sciences, LT-50161 Kaunas, Lithuania
| | - Liudas Ivanauskas
- Department of Analytical and Toxicological Chemistry, Lithuanian University of Health Sciences, LT-50161 Kaunas, Lithuania; (L.I.); (M.M.)
| | - Mindaugas Marksa
- Department of Analytical and Toxicological Chemistry, Lithuanian University of Health Sciences, LT-50161 Kaunas, Lithuania; (L.I.); (M.M.)
| | - Jurga Bernatoniene
- Department of Drug Technology and Social Pharmacy, Lithuanian University of Health Sciences, LT-50161 Kaunas, Lithuania;
- Institute of Pharmaceutical Technologies, Lithuanian University of Health Sciences, LT-50161 Kaunas, Lithuania
- Correspondence:
| |
Collapse
|
9
|
Vasiljević S, Mikulić M, Aćimović M, Kiprovski B, Krstić S, Katanski S, Mamlić Z. Isoflavones profiles of red clover (Trifolium pratense L.) at different growth stages. MAKEDONSKO FARMACEVTSKI BILTEN 2022. [DOI: 10.33320/10.33320/maced.pharm.bull.2020.66.04.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Affiliation(s)
- Sanja Vasiljević
- Institute of Field and Vegetable Crops, Maksima Gorkog 30, 21000, Novi Sad, Republic of Serbia
| | - Mira Mikulić
- Faculty of Medicine, University of Novi Sad, Hajduk Veljkova 3, 21000, Novi Sad, Republic of Serbia
| | - Milica Aćimović
- Institute of Field and Vegetable Crops, Maksima Gorkog 30, 21000, Novi Sad, Republic of Serbia
| | - Biljana Kiprovski
- Institute of Field and Vegetable Crops, Maksima Gorkog 30, 21000, Novi Sad, Republic of Serbia
| | - Sanja Krstić
- Faculty of Science, University of Novi Sad, Trg Dositeja Obradovića 3, 21000 Novi Sad, Republic of Serbia
| | - Snežana Katanski
- Institute of Field and Vegetable Crops, Maksima Gorkog 30, 21000, Novi Sad, Republic of Serbia
| | - Zlatica Mamlić
- Institute of Field and Vegetable Crops, Maksima Gorkog 30, 21000, Novi Sad, Republic of Serbia
| |
Collapse
|
10
|
Temerdashev ZA, Chubukina TK, Vinitskaya EA, Nagalevskii MV, Kiseleva NV. Assessment of the Concentrations of Isoflavonoids in Red Clover (Trifolium pratense L.) of the Fabaceae Family Using Extraction by Different Methods. JOURNAL OF ANALYTICAL CHEMISTRY 2021. [DOI: 10.1134/s1061934821090112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
11
|
Tosar V, Rousseau G, Decruyenaere V, Beckers Y, Larondelle Y, Froidmont E. Red clover-rich grassland increases equol concentration in eggs from free-range laying hens. Br Poult Sci 2021; 62:840-845. [PMID: 34009075 DOI: 10.1080/00071668.2021.1929069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
1. The aim of this study was to evaluate the production of equol (4',7-isoflavandiol; a bacterial polyphenol metabolite which is an isoflavandiol oestrogen metabolised from daidzein from plants) enriched eggs from free-range hens fed different pasture species. Four species were tested: red clover, white clover, ryegrass and chicory.2. The study was conducted from June to September 2017 on eight free range, outdoor areas, each containing fifteen laying hens and sown with a single pasture species3. Precursors of equol (daidzein, formononetin) were analysed every fortnight from the fresh pasture cover in each area, as well as equol and daidzein levels in eggs.4. Daidzein and formononetin concentrations in the fresh pasture samples differed significantly according to species (P < 0.001), whereby red clover had the highest concentrations of daidzein and formononetin (85 and 996 µg/g DM, respectively).5. Equol concentration in eggs differed according to pasture species (P < 0.001). Equol concentrations reached about 1,200 ng/g DM in eggs from hens with access to red clover. These eggs can represent a valuable source of equol in the human diet.
Collapse
Affiliation(s)
- V Tosar
- Productions in Agriculture Department, Walloon Agricultural Research Center, Gembloux, Belgium.,Louvain Institute of Biomolecular Science and Technology, UCLouvain, Louvain-la-Neuve, Belgium
| | - G Rousseau
- Knowledge and Valorization of Agricultural Products Department, Walloon Agricultural Research Center, Gembloux, Belgium
| | - V Decruyenaere
- Productions in Agriculture Department, Walloon Agricultural Research Center, Gembloux, Belgium
| | - Y Beckers
- Precision Livestock and Nutrition, University of Liège - Gembloux Agro-Bio Tech, Gembloux, Belgium
| | - Y Larondelle
- Louvain Institute of Biomolecular Science and Technology, UCLouvain, Louvain-la-Neuve, Belgium
| | - E Froidmont
- Productions in Agriculture Department, Walloon Agricultural Research Center, Gembloux, Belgium
| |
Collapse
|
12
|
Novel Extraction Method Using Excipients to Enhance Yield of Genistein and Daidzein in Trifolium pratensis L. Pharmaceutics 2021; 13:pharmaceutics13060777. [PMID: 34067424 PMCID: PMC8224777 DOI: 10.3390/pharmaceutics13060777] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 05/18/2021] [Accepted: 05/19/2021] [Indexed: 11/17/2022] Open
Abstract
Isoflavones can be found in different chemical forms, but the health beneficial effects mainly appear in their free forms—aglycones. Their yield in red clover (Trifolium pratensis L.) extracts differs due to different extraction and hydrolysis methodologies. The main aim of this study was to obtain the highest yields of daidzein and genistein from red clover blossoms through the various extraction and hydrolysis methods and to increase their quantities using additional excipients. Extracts were obtained by ultrasound-assisted, heat-reflux and maceration methods combining them with acidic, alkaline, and thermal hydrolysis. Using ultrasound-assisted extraction with optimal conditions and heat-reflux method highest yields of isoflavones were obtained in UTE510 (393.23 ± 19.66 µg/g daidzein and 171.57 ± 8.58 µg/g genistein); UTE530 (415.07 ± 20.75 µg/g daidzein and 150.57 ± 7.53 µg/g genistein) and HNE5 (432.30 ± 21.61 µg/g daidzein and 154.50 ± 7.72 µg/g genistein) samples. These conditions were used with excipients: magnesium aluminometasilicate, croscarmellose sodium, sodium carboxymethyl starch and vinylpyrrolidone-vinyl acetate copolymer. This is the first study reporting the ability of the vinylpyrrolidone-vinyl acetate copolymer to promote solubilization and availability of active compounds from a herbal extract, resulting in enhanced isoflavones yield. The results of the present study showing increased solubility and availability provided by the vinylpyrrolidone-vinyl acetate copolymer suggest that this preparation could in principle also reduce variability due to limited water solubility of isoflavones.
Collapse
|
13
|
Edible Flowers Extracts as a Source of Bioactive Compounds with Antioxidant Properties—In Vitro Studies. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11052120] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Edible plants began to play an important role in past decade as a part of therapy, a recovery process or a healthy life style. The availability and relatively low price of the raw material, as well as proven bioactive health benefits, are key to consumers’ choice of nutrients. The red clover (Trifolium pratense) is a popular plant with healthy properties such as antiseptic and analgesic effects. The less known white clover (Trifolium repens), a fodder and honey plant, has anti-rheumatic and anti-diabetic properties. Both species may serve as a potential source of bioactive substances with antioxidant properties as a food additive or supplement. The study material consisted of flower extracts of Trifolium repens and Trifolium pratense. The total content of polyphenols and DPPH (2.2-diphenyl-1-picrylhydrazyl) and ferric reducing antioxidant power (FRAP) were measured using spectrophotometry methods. Oxidative stress in THP1 cells was induced via sodium fluoride. Subsequently, flower extracts were added and their influences on proliferation, antioxidant potential and the activity of antioxidant enzymes were evaluated. The extracts have a high total content of polyphenols as well as high antioxidant potential. We also demonstrated positive extracts impact on cells proliferation, high antioxidant potential and increasing activity of antioxidant enzymes on cell cultures under high oxidative stress induced by fluoride. Both red clover and the less known white clover may serve as valuable sources of antioxidants in the everyday diet.
Collapse
|
14
|
Duan T, Ma H, Dong Y, Yang F, Liu X. Microemulsion liquid chromatographic method for simultaneous separation and determination of five isoflavones in red clover. J LIQ CHROMATOGR R T 2021. [DOI: 10.1080/10826076.2020.1866599] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Tianjiao Duan
- School of Life Science and Engineering, Lanzhou University of Technology, Lanzhou, People’s Republic of China
- School of Pharmacy, Lanzhou University, Lanzhou, People’s Republic of China
| | - Haixia Ma
- School of Pharmacy, Lanzhou University, Lanzhou, People’s Republic of China
| | - Yuming Dong
- School of Pharmacy, Lanzhou University, Lanzhou, People’s Republic of China
| | - Fatang Yang
- School of Pharmacy, Lanzhou University, Lanzhou, People’s Republic of China
| | - Xiaofeng Liu
- School of Life Science and Engineering, Lanzhou University of Technology, Lanzhou, People’s Republic of China
| |
Collapse
|
15
|
Wang G, Liu H, Liu Y, Li H, Li Z, Shao G, Lv X. Formononetin alleviates Streptococcus suis infection by targeting suilysin. Microb Pathog 2020; 147:104388. [DOI: 10.1016/j.micpath.2020.104388] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 07/06/2020] [Accepted: 07/07/2020] [Indexed: 01/29/2023]
|
16
|
Sarfraz A, Javeed M, Shah MA, Hussain G, Shafiq N, Sarfraz I, Riaz A, Sadiqa A, Zara R, Zafar S, Kanwal L, Sarker SD, Rasul A. Biochanin A: A novel bioactive multifunctional compound from nature. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 722:137907. [PMID: 32208265 DOI: 10.1016/j.scitotenv.2020.137907] [Citation(s) in RCA: 79] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 02/25/2020] [Accepted: 03/11/2020] [Indexed: 06/10/2023]
Abstract
Natural products (NPs) will continue to serve humans as matchless source of novel drug leads and an inspiration for the synthesis of non-natural drugs. As our scientific understanding of 'nature' is rapidly expanding, it would be worthwhile to illuminate the pharmacological distinctions of NPs to the scientific community and the public. Flavonoids have long fascinated scientists with their remarkable structural diversity as well as biological functions. Consequently, this review aims to shed light on the sources and pharmacological significance of a dietary isoflavone, biochanin A, which has been recently emerged as a multitargeted and multifunctional guardian of human health. Biochanin A possesses anti-inflammatory, anticancer, neuroprotective, antioxidant, anti-microbial, and hepatoprotective properties. It combats cancer development by inducing apoptosis, inhibition of metastasis and arresting cell cycle via targeting several deregulated signaling pathways of cancer. It fights inflammation by blocking the expression and activity of pro-inflammatory cytokines via modulation of NF-κB and MAPKs. Biochanin A acts as a neuroprotective agent by inhibiting microglial activation and apoptosis of neurons. As biochanin A has potential to modulate several biological networks, thus, it can be anticipated that this therapeutically potent compound might serve as a novel lead for drug development in the near future.
Collapse
Affiliation(s)
- Ayesha Sarfraz
- Department of Zoology, Faculty of Life Sciences, Government College University, Faisalabad 38000, Pakistan
| | - Maria Javeed
- Department of Zoology, Faculty of Life Sciences, Government College University, Faisalabad 38000, Pakistan
| | - Muhammad Ajmal Shah
- Department of Pharmacognosy, Faculty of Pharmaceutical Sciences, Government College University, Faisalabad 38000, Pakistan.
| | - Ghulam Hussain
- Department of Physiology, Faculty of Life Sciences, Government College University, Faisalabad 38000, Pakistan
| | - Nusrat Shafiq
- Department of Chemistry, Government College Woman University Faisalabad (GCWUF), 38000 Faisalabad, Pakistan
| | - Iqra Sarfraz
- Department of Zoology, Faculty of Life Sciences, Government College University, Faisalabad 38000, Pakistan
| | - Ammara Riaz
- Department of Zoology, Faculty of Life Sciences, Government College University, Faisalabad 38000, Pakistan
| | - Ayesha Sadiqa
- Department of Zoology, Faculty of Life Sciences, Government College University, Faisalabad 38000, Pakistan
| | - Rabia Zara
- Department of Zoology, Faculty of Life Sciences, Government College University, Faisalabad 38000, Pakistan
| | - Saba Zafar
- Department of Zoology, Faculty of Life Sciences, Government College University, Faisalabad 38000, Pakistan
| | - Lubna Kanwal
- Institute of Pure and Applied Zoology, University of Okara, Okara, Pakistan
| | - Satyajit D Sarker
- Centre for Natural Products Discovery (CNPD), School of Pharmacy & Biomolecular Sciences, Liverpool John Moores University, Byrom Street, Liverpool L3 3AF, England, UK
| | - Azhar Rasul
- Department of Zoology, Faculty of Life Sciences, Government College University, Faisalabad 38000, Pakistan.
| |
Collapse
|
17
|
Jeon SY, Kim MR, Lee EO, Jeon BH, Lee JJ, Lee YC. Effect of a new herbal composition comprised of red clover and hop extract on human endothelial cell damage and vasorelaxant activity. J Food Biochem 2020; 44:e13314. [PMID: 32542699 DOI: 10.1111/jfbc.13314] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 02/24/2020] [Accepted: 05/04/2020] [Indexed: 12/24/2022]
Abstract
Hormone replacement therapy may cause various side effects, including enhancing the risk of cardiovascular disease (CVD) in postmenopausal women. Here, we investigated the effect of red clover and hop extract combination (RHEC) on estrogen receptor (ER) binding and endothelial function of human umbilical vein endothelial cells (HUVECs) to develop an herbal agent for reducing the risk of CVDs. In ER competitor assay, RHEC showed binding affinity toward ERα and ERβ with IC50 values of 5.92 µg/ml and 1.66 µg/ml, respectively. In HUVECs, RHEC significantly increased the cell viability and reduced the reactive oxygen species production against oxidative stress-induced damage. We also showed that RHEC increased the NO production through upregulating the endothelial nitric oxide synthase expression via ER activation in estrogen depleted condition. In particular, RHEC showed greater efficacy with increase in NO and decrease in endothelin-1 than red clover or hop treatment alone. Additionally, 0.3-0.5 mg/ml of RHEC-induced vasorelaxation of rat aortic rings precontracted by phenylephrine. PRACTICAL APPLICATIONS: Recently, a large interest has grown in the synergistic effects of phytochemicals for better therapies to treat various diseases. Red clover and hop are well-known edible plants which are widely used to help relieve postmenopausal symptoms including CVD. However, their combination has not been studied so far. For the first time, we demonstrated that RHEC, a new herbal combination comprising the extracts from red clover and hop, appeared to be effective in protection of endothelial function against oxidative stress and estrogen depletion. Therefore, RHEC could be a potent herbal agent for reducing the risk of endothelial damage.
Collapse
Affiliation(s)
- Se Yeong Jeon
- R&D Center, Naturetech Co., Ltd, 450-86, Maebong-Ro, Dongnam-Gu, Cheonan-Si, Chungnam, Republic of Korea
| | - Mi Ran Kim
- R&D Center, Naturetech Co., Ltd, 450-86, Maebong-Ro, Dongnam-Gu, Cheonan-Si, Chungnam, Republic of Korea
| | - Eun Ok Lee
- Department of Physiology, Infection Signaling Network Research Center, Research Institute for Medical Sciences, School of Medicine, Chungnam National University, Daejeon, Republic of Korea
| | - Byeong Hwa Jeon
- Department of Physiology, Infection Signaling Network Research Center, Research Institute for Medical Sciences, School of Medicine, Chungnam National University, Daejeon, Republic of Korea
| | - Jeong Jun Lee
- R&D Center, Naturetech Co., Ltd, 450-86, Maebong-Ro, Dongnam-Gu, Cheonan-Si, Chungnam, Republic of Korea
| | - Young Chul Lee
- R&D Center, Naturetech Co., Ltd, 450-86, Maebong-Ro, Dongnam-Gu, Cheonan-Si, Chungnam, Republic of Korea
| |
Collapse
|
18
|
Jiang D, Rasul A, Batool R, Sarfraz I, Hussain G, Mateen Tahir M, Qin T, Selamoglu Z, Ali M, Li J, Li X. Potential Anticancer Properties and Mechanisms of Action of Formononetin. BIOMED RESEARCH INTERNATIONAL 2019; 2019:5854315. [PMID: 31467899 PMCID: PMC6699357 DOI: 10.1155/2019/5854315] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Accepted: 05/09/2019] [Indexed: 02/07/2023]
Abstract
Nature, a vast reservoir of pharmacologically active molecules, has been most promising source of drug leads for the cure of various pathological conditions. Formononetin is one of the bioactive isoflavones isolated from different plants mainly from Trifolium pratense, Glycine max, Sophora flavescens, Pycnanthus angolensis, and Astragalus membranaceus. Formononetin has been well-documented for its anti-inflammatory, anticancer, and antioxidant properties. Recently anticancer activity of formononetin is widely studied. This review aims to highlight the pharmacological potential of formononetin, thus providing an insight of its status in cancer therapeutics. Formononetin fights progression of cancer via inducing apoptosis, arresting cell cycle, and halting metastasis via targeting various pathways which are generally modulated in several cancers. Although reported data acclaims various biological properties of formononetin, further experimentation on mechanism of its action, medicinal chemistry studies, and preclinical investigations are surely needed to figure out full array of its pharmacological and biological potential.
Collapse
Affiliation(s)
- Dongjun Jiang
- The Key Laboratory of Molecular Epigenetics of MOE, Institute of Genetics and Cytology, Northeast Normal University, Changchun 130024, China
| | - Azhar Rasul
- The Key Laboratory of Molecular Epigenetics of MOE, Institute of Genetics and Cytology, Northeast Normal University, Changchun 130024, China
- Department of Zoology, Faculty of Life Sciences, Government College University Faisalabad (GCUF), 38000, Pakistan
| | - Rabia Batool
- Department of Zoology, Faculty of Life Sciences, Government College University Faisalabad (GCUF), 38000, Pakistan
| | - Iqra Sarfraz
- Department of Zoology, Faculty of Life Sciences, Government College University Faisalabad (GCUF), 38000, Pakistan
| | - Ghulam Hussain
- Department of Physiology, Faculty of Life Sciences, Government College University Faisalabad (GCUF), 38000, Pakistan
| | - Muhammad Mateen Tahir
- Department of Zoology, Faculty of Life Sciences, Government College University Faisalabad (GCUF), 38000, Pakistan
| | - Tian Qin
- The Key Laboratory of Molecular Epigenetics of MOE, Institute of Genetics and Cytology, Northeast Normal University, Changchun 130024, China
| | - Zeliha Selamoglu
- Department of Medical Biology, Faculty of Medicine, Nigde Ömer Halisdemir University, Nigde, Campus 51240, Turkey
| | - Muhammad Ali
- Quaid-e-Azam University, Islamabad 45320, Pakistan
| | - Jiang Li
- Dental Hospital, Jilin University, Changchun 130021, China
| | - Xiaomeng Li
- The Key Laboratory of Molecular Epigenetics of MOE, Institute of Genetics and Cytology, Northeast Normal University, Changchun 130024, China
| |
Collapse
|
19
|
Nørskov NP, Givens I, Purup S, Stergiadis S. Concentrations of phytoestrogens in conventional, organic and free-range retail milk in England. Food Chem 2019; 295:1-9. [PMID: 31174736 DOI: 10.1016/j.foodchem.2019.05.081] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 04/24/2019] [Accepted: 05/09/2019] [Indexed: 02/08/2023]
Abstract
The effect of dairy management system (conventional, CNV; organic, ORG; free-range, FRG) and month on retail milk phytoestrogen composition was assessed for 12 consecutive months. ORG milk contained more secoisolariciresinol, matairesinol, lariciresinol, sum of plant lignans, daidzein, genistein, formononetin, naringenin, equol, sum of isoflavones and coumestrol, than CNV and FRG milk. This may be explained by the higher supply of pasture, and grazed or ensiled clover, in ORG dairy diets. Seasonal variation in milk phytoestrogen concentrations was higher for ORG than CNV and FRG systems. Phytoestrogen composition did not vary between FRG and CNV milk. Consuming organic milk can increase intake of potentially beneficial lignans and isoflavonoids, and in particular equol; but, any effects on human health from such milk compositional differences cannot be implied.
Collapse
Affiliation(s)
- Natalja P Nørskov
- Aarhus University, Department of Animal Science, AU-Foulum, Blichers Alle 20, P.O. Box 50, DK-8830 Tjele, Denmark
| | - Ian Givens
- University of Reading, Institute for Food Nutrition and Health, Agriculture Building, P.O. Box 237, Earley Gate, Reading RG6 6AR, United Kingdom
| | - Stig Purup
- Aarhus University, Department of Animal Science, AU-Foulum, Blichers Alle 20, P.O. Box 50, DK-8830 Tjele, Denmark
| | - Sokratis Stergiadis
- University of Reading, School of Agriculture, Policy and Development, Animal, Dairy and Food Chain Sciences, Agriculture Building, P.O. Box 237, Earley Gate, Reading RG6 6AR, United Kingdom.
| |
Collapse
|
20
|
Khazaei M, Pazhouhi M. Antiproliferative Effect of Trifolium Pratens L. Extract in Human Breast Cancer Cells. Nutr Cancer 2018; 71:128-140. [PMID: 30596276 DOI: 10.1080/01635581.2018.1521443] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Breast cancer is currently the most common cancer in women worldwide. Tamoxifen is used for the treatment of both early and advanced estrogen receptor positive breast cancer. Trifolium pratense L. has been suggested for cancer treatment in traditional medicine. The effect of T. pratense extract on breast cell lines (MCF-7 and MDA-MB-231) was investigated here. The cells were treated with T. pratense extract and cell viability was evaluated using trypan blue staining, MTT assay and lactate dehydrogenase activity measurement. Apoptosis, autophagy cell death was detected using fluorescent dye staining. Griess assay was performed to nitric oxide (No) measurement. Change in expression level of some apoptotic and autophagic- related genes was detected using real-time PCR. The combination effect of exteract and tamoxifen was evaluated by calculating the combination index and dose reduction index (DRI) values. T. pratense extract reduced the cell viability in dose and time- dependent manner. Apoptosis and autophagy was increased after treatment with T. pratense extract. Nitric oxide production significantly reduced in cells and combination of tamoxifen and T. pratense extract had a synergistic cytotoxic effect on breast cancer cell lines. T. pratense as a dietary supplement can be beneficial for some patients with breast cancer who receive conventional chemotherapy.
Collapse
Affiliation(s)
- Mozafar Khazaei
- a Fertility and Infertility Research Center , Kermanshah University of Medical Sciences , Kermanshah , Iran
| | - Mona Pazhouhi
- a Fertility and Infertility Research Center , Kermanshah University of Medical Sciences , Kermanshah , Iran
| |
Collapse
|
21
|
Formononetin and biochanin A protects against ritonavir induced hepatotoxicity via modulation of NfκB/pAkt signaling molecules. Life Sci 2018; 213:174-182. [DOI: 10.1016/j.lfs.2018.10.023] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 10/07/2018] [Accepted: 10/12/2018] [Indexed: 01/13/2023]
|
22
|
Khazaei M, Pazhouhi M, Khazaei S. Evaluation of Hydro-Alcoholic Extract of Trifolium Pratens L. for Its Anti-Cancer Potential on U87MG Cell Line. CELL JOURNAL 2018; 20:412-421. [PMID: 29845796 PMCID: PMC6005001 DOI: 10.22074/cellj.2018.5380] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/08/2017] [Accepted: 09/18/2017] [Indexed: 12/27/2022]
Abstract
OBJECTIVE Glioblastoma multiforme is the most malignant form of brain tumors. Trifolium pratense L. has been suggested for cancer treatment in traditional medicine. Here we have investigated the effects of T. pratense extract on glioblastoma multiforme cell line (U87MG). MATERIALS AND METHODS In this experimental study, the effect of T. pratense extract on cell viability was investigated using trypan blue staining, MTT assay, and lactate dehydrogenase activity measurement. Apoptosis and autophagy cell death were detected by fluorescent staining. Nitric oxide (No) production was measured using Griess reaction. Expression levels of some apoptotic and autophagic-related genes were detected using real-time polymerase chain reaction (PCR). The combination effects of T. pratense extract and temozolomide (TMZ) were evaluated by calculating the combination index and dose reduction index values. RESULTS After treatment with T. pratense extract, the cell viability was significantly reduced in a time- and dosedependent manner (P<0.05). Apoptosis and autophagy of U87MG cells were significantly increased (P<0.05). Also, T. pratense extract significantly decreased NO production (P<0.05) by U87MG cells. Combination of TMZ and T. pratense extract had a synergistic cytotoxic effect. CONCLUSION T. pratense showed anti-cancer properties via induction of apoptosis and autophagy cell death.
Collapse
Affiliation(s)
- Mozafar Khazaei
- Fertility and Infertility Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Mona Pazhouhi
- Fertility and Infertility Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran.Electronic Address:
| | - Saber Khazaei
- Department of Endodontics, Dental Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| |
Collapse
|
23
|
Khazaei M, Pazhouhi M. Protective effect of hydroalcoholic extracts of Trifolium pratense L. on pancreatic β cell line (RIN-5F) against cytotoxicty of streptozotocin. Res Pharm Sci 2018; 13:324-331. [PMID: 30065765 PMCID: PMC6040161 DOI: 10.4103/1735-5362.235159] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Natural plants have traditionally been used throughout the world for their anti-diabetic effects. The aim of the present study was to investigate the protective effect of hydroalcoholic extract of Trifolium pratens L. (T. pratense) on streptozotocin (STZ) cytotoxicity and insulin concentration from RIN-5F pancreatic β cell line. In this study, possible cytoprotective action of T. pratense extract (using pre-treatment, simultaneous, and post-treatment schedules) against STZ (30 mM) was evaluated using MTT assay. Apoptosis was quantified by fluorescent dye staining. Also, the effect of extract on insulin secretion in low and high glucose media was examined. Data were analyzed by one-way ANOVA test and P < 0.05 was considered significant. The viability of RIN-5F cells in 10, 20, 30, 40, and 60 μg/mL doses of T. pratense extract showed significant increases compared to control group (P < 0.001). STZ significantly reduced cell viability in a dose-dependent manner (P < 0.05). T. pratense extract in 20, 30, and 40 μg/mL doses had significant cytoprotective effect (P < 0.05) on cytotoxic action of STZ and this effect is greater in simultaneous treatment. STZ-mediated apoptotic death is reduced by extract. T. pratense extract treatment also, increased insulin concentration in cell culture medium. T. pratense had potent cytoprotective action, prevented apoptosis and increased insulin concentration in cell culture medium via the increase in pancreatic β cell number and/or insulin secretion. In addition, T. pratense enhanced viability of RIN-5F. Thus, T. pratense not only has anti-diabetic actions on β cells but also enhances their viability.
Collapse
Affiliation(s)
- Mozafar Khazaei
- Fertility and Infertility Research Center, Kermanshah University of Medical Sciences, Kermanshah, I.R. Iran
| | - Mona Pazhouhi
- Fertility and Infertility Research Center, Kermanshah University of Medical Sciences, Kermanshah, I.R. Iran
| |
Collapse
|
24
|
Vlaisavljević S, Kaurinović B, Popović M, Vasiljević S. Profile of phenolic compounds in Trifolium pratense L. extracts at different growth stages and their biological activities. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2017. [DOI: 10.1080/10942912.2016.1273235] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Sanja Vlaisavljević
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, University of Novi Sad, Novi Sad, Serbia
| | - Biljana Kaurinović
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, University of Novi Sad, Novi Sad, Serbia
| | - Mira Popović
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, University of Novi Sad, Novi Sad, Serbia
| | - Sanja Vasiljević
- Department of Forage Crops, Institute of Field and Vegetable Crops, Novi Sad, Serbia
| |
Collapse
|
25
|
Tava A, Stochmal A, Pecetti L. Isoflavone Content in Subterranean Clover Germplasm from Sardinia. Chem Biodivers 2016; 13:1038-45. [PMID: 27415852 DOI: 10.1002/cbdv.201500360] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Accepted: 01/25/2016] [Indexed: 11/06/2022]
Abstract
Subterranean clover (Trifolium subterraneum) is an important pasture legume, and Sardinia is known as a major centre of diversification of this species. As other legumes, this clover produces biologically active flavonoids including the subclass of isoflavones that are natural phytoestrogens with positive health effects. Present sources of isoflavones for medical/nutraceutical treatments are red clover (Trifolium pratense) and soybean (Glycine max). This study assessed the content and composition of flavonoids in 14 subterranean clover genotypes from Sardinia, grown ex-situ in comparison with two red clover ecotypes, to acquire information on the potential of the species as an alternative source of isoflavones for possible exploitation. Twenty compounds were tentatively identified across the two clovers after HPLC and LC/ESI-MS analyses, including clovamide, four flavonols, and 15 isoflavones. Most compounds were present as glucosides or glucosyl malonates. Subterranean clover extracts mainly comprised of derivatives of the isoflavones genistein, biochanin A, and formononetin. Compared to red clover, subterranean clover had higher content of total isoflavones and lower concentration of total flavonols. The isoflavone concentration in subterranean clover was higher than literature data for soybean or red clover. The existing genotypic variation warrants the possibility of selecting varieties with high isoflavone concentration for nutraceutical or pharmaceutical purposes.
Collapse
Affiliation(s)
- Aldo Tava
- Consiglio per la Ricerca in Agricoltura e l'Analisi dell'Economia Agraria - Centro di Ricerca per le Produzioni Foraggere e Lattiero-Casearie (CREA-FLC), viale Piacenza 29, 26900, Lodi, Italy
| | - Anna Stochmal
- Department of Biochemistry and Crop Quality, Institute of Soil Science and Plant Cultivation, State Research Institute, ul. Czartoryskich 8, 24-100, Puławy, Poland
| | - Luciano Pecetti
- Consiglio per la Ricerca in Agricoltura e l'Analisi dell'Economia Agraria - Centro di Ricerca per le Produzioni Foraggere e Lattiero-Casearie (CREA-FLC), viale Piacenza 29, 26900, Lodi, Italy
| |
Collapse
|
26
|
Liu Y, Garzon J, Friesen JB, Zhang Y, McAlpine JB, Lankin DC, Chen SN, Pauli GF. Countercurrent assisted quantitative recovery of metabolites from plant-associated natural deep eutectic solvents. Fitoterapia 2016; 112:30-37. [PMID: 27118320 DOI: 10.1016/j.fitote.2016.04.019] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Revised: 04/20/2016] [Accepted: 04/22/2016] [Indexed: 10/21/2022]
Abstract
NAtural Deep Eutectic Solvents (NADES) are chemically simple but physiologically important plant constituents that exhibit unique solubilizing properties of other metabolites, including bioactive constituents. The high polarity of NADES introduces a challenge in the ability of conventional solid-support based chromatography to recover potential bioactive metabolites. This complicates the systematic explanation of the NADES' functions in botanical extracts. The present study utilizes countercurrent separation (CCS) methodology to overcome the recovery challenge. To demonstrate its feasibility, Glucose-Choline chloride-Water (GCWat, 2:5:5, mole/mole) served as a model NADES, and four widely used marker flavonoids with different polarities (rutin, quercetin, kaempferol, and daidzein) were chosen as model target analytes. In order to prepare GCWat with high consistency, a water drying study was performed. The unique capabilities of the recently introduced CherryOne system, offering volumetric phase metering, were used to monitor the CCS operations. The collected fractions were analyzed using UHPLC and NMR/quantitative NMR. CCS was able to recover the analytes from the NADES matrix with quantitative recoveries of 95.7%, 94.6%, 97.0%, and 96.7% for rutin, quercetin, kaempferol, and daidzein respectively. The CCS strategy enables recovery of target metabolites from NADES-containing crude extracts as well as from other chemical mixtures, and moreover offers a means of using NADES as environmentally friendly extraction solvents.
Collapse
Affiliation(s)
- Yang Liu
- UIC/NIH Center for Botanical Dietary Supplements Research, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60612, USA.,Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60612, USA
| | - Jahir Garzon
- UIC/NIH Center for Botanical Dietary Supplements Research, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60612, USA.,Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60612, USA
| | - J Brent Friesen
- UIC/NIH Center for Botanical Dietary Supplements Research, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60612, USA.,Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60612, USA.,Physical Sciences Department, Rosary College of Arts and Sciences, Dominican University, River Forest, IL 60305, USA
| | - Yu Zhang
- Department of Biopharmaceutical Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60612, USA
| | - James B McAlpine
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60612, USA.,Institute for Tuberculosis Research, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60612, USA
| | - David C Lankin
- UIC/NIH Center for Botanical Dietary Supplements Research, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60612, USA.,Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60612, USA
| | - Shao-Nong Chen
- UIC/NIH Center for Botanical Dietary Supplements Research, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60612, USA.,Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60612, USA
| | - Guido F Pauli
- UIC/NIH Center for Botanical Dietary Supplements Research, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60612, USA.,Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60612, USA.,Institute for Tuberculosis Research, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60612, USA
| |
Collapse
|
27
|
Shappell NW, Flythe MD, Aiken GE. The Effects of Steroid Implant and Dietary Soybean Hulls on Estrogenic Activity of Sera of Steers Grazing Toxic Endophyte-Infected Tall Fescue Pasture. Front Vet Sci 2015; 2:30. [PMID: 26664959 PMCID: PMC4672223 DOI: 10.3389/fvets.2015.00030] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Accepted: 08/21/2015] [Indexed: 11/13/2022] Open
Abstract
Soybean hulls (SBHs) have been fed to cattle pasturing on endophyte-infected tall fescue in attempts to increase rate of gain. Literature reports indicated some symptoms associated with fescue toxicosis were ameliorated by the use of steroidal implants containing estradiol (E2) and progesterone [implantation (IMP)], feeding SBHs, or the combination of the two. While the mechanism for amelioration was unclear, the SBHs were postulated as acting as a diluent of the toxic factors of the fescue. Alternatively, estradiol and phytoestrogens of SBHs might be acting through relaxation of the persistent vasoconstriction found in animals ingesting ergot alkaloids of endophyte-infected fescue. If so, estrogenic activity of serum of steers receiving SBHs, IMP, or a combination of the two should be elevated. Using the cellular proliferation assay of estrogenicity (E-Screen), estradiol equivalents (E2Eqs) were determined on both SBHs and the serum of steers from a previously reported study. Range of SBHs was 5.0–8.5 ng Eqs g−1 DM (mean 6.5, n = 4 from different commercial sources of SBHs). At the rate fed, theoretically calculated blood E2Eq could be physiologically relevant (~80 pg mL−1, based on 2.3 kg SBHs d−1, 300 kg steer, 5.7% blood volume, and 10% absorption). Serum E2Eqs did increase in steers (P ≤ 0.05) with steroidal implants or fed SBHs by 56 and 151% over control, respectively, and treatments were additive (211% increase). Serum prolactin was also greatest for the SBH + IMP group (188 ng mL−1, P < 0.05), concentrations comparable to values reported for steers grazing endophyte-free fescue. Prolactin in the SBH group was higher than IMP or control groups (146 versus 76 and 60 ng mL−1, respectively). Still unknown is if additional E2Eqs from dietary phytoestrogens or exogenous sources of estradiol can further reduce symptoms of fescue toxicosis. The E-Screen assay was an effective tool in monitoring serum for estrogenic effects of dietary supplementation with SBHs or estrogenic implants.
Collapse
Affiliation(s)
- Nancy W Shappell
- USDA-ARS Animal Metabolism-Agricultural Chemicals Research , Fargo, ND , USA
| | - Michael D Flythe
- USDA-ARS Forage-Animal Production Research Unit , Lexington, KY , USA
| | - Glen E Aiken
- USDA-ARS Forage-Animal Production Research Unit , Lexington, KY , USA
| |
Collapse
|
28
|
Khan K, Pal S, Yadav M, Maurya R, Trivedi AK, Sanyal S, Chattopadhyay N. Prunetin signals via G-protein-coupled receptor, GPR30(GPER1): Stimulation of adenylyl cyclase and cAMP-mediated activation of MAPK signaling induces Runx2 expression in osteoblasts to promote bone regeneration. J Nutr Biochem 2015; 26:1491-501. [PMID: 26345541 DOI: 10.1016/j.jnutbio.2015.07.021] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2015] [Revised: 07/13/2015] [Accepted: 07/20/2015] [Indexed: 01/26/2023]
Abstract
Prunetin is found in red clover and fruit of Prunus avium (red cherry). The effect of prunetin on osteoblast function, its mode of action and bone regeneration in vivo were investigated. Cultures of primary osteoblasts, osteoblastic cell line and HEK293T cells were used for various in vitro studies. Adult female rats received drill-hole injury at the femur diaphysis to assess the bone regenerative effect of prunetin. Prunetin at 10nM significantly (a) increased proliferation and differentiation of primary cultures of osteoblasts harvested from rats and (b) promoted formation of mineralized nodules by bone marrow stromal/osteoprogenitor cells. At this concentration, prunetin did not activate any of the two nuclear estrogen receptors (α and β). However, prunetin triggered signaling via a G-protein-coupled receptor, GPR30/GPER1, and enhanced cAMP levels in osteoblasts. G15, a selective GPR30 antagonist, abolished prunetin-induced increases in osteoblast proliferation, differentiation and intracellular cAMP. In osteoblasts, prunetin up-regulated runt-related transcription factor 2 (Runx2) protein through cAMP-dependent Erk/MAP kinase activation that ultimately resulted in the up-regulation of GPR30. Administration of prunetin at 0.25mg/kg given to rats stimulated bone regeneration at the site of drill hole and up-regulated Runx2 expression in the fractured callus and the effect was comparable to human parathyroid hormone, the only clinically used osteogenic therapy. We conclude that prunetin promotes osteoinduction in vivo and the mechanism is defined by signaling through GPR30 resulting in the up-regulation of the key osteogenic gene Runx2 that in turn up-regulates GPR30.
Collapse
Affiliation(s)
- Kainat Khan
- Division of Endocrinology and Center for Research in Anabolic Skeletal Targets in Health and Illness, Central Drug Research Institute, Council of Scientific and Industrial Research, Lucknow 226021, India
| | - Subhashis Pal
- Division of Endocrinology and Center for Research in Anabolic Skeletal Targets in Health and Illness, Central Drug Research Institute, Council of Scientific and Industrial Research, Lucknow 226021, India
| | - Manisha Yadav
- Division of Biochemistry, Central Drug Research Institute, Council of Scientific and Industrial Research, Lucknow 226021, India
| | - Rakesh Maurya
- Division of Medicinal and Process Chemistry, Central Drug Research Institute, Council of Scientific and Industrial Research, Lucknow 226021, India
| | - Arun Kumar Trivedi
- Division of Biochemistry, Central Drug Research Institute, Council of Scientific and Industrial Research, Lucknow 226021, India
| | - Sabyasachi Sanyal
- Division of Biochemistry, Central Drug Research Institute, Council of Scientific and Industrial Research, Lucknow 226021, India
| | - Naibedya Chattopadhyay
- Division of Endocrinology and Center for Research in Anabolic Skeletal Targets in Health and Illness, Central Drug Research Institute, Council of Scientific and Industrial Research, Lucknow 226021, India.
| |
Collapse
|
29
|
Phytoestrogens and their metabolites in bulk-tank milk: effects of farm management and season. PLoS One 2015; 10:e0127187. [PMID: 25996600 PMCID: PMC4440760 DOI: 10.1371/journal.pone.0127187] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2014] [Accepted: 04/12/2015] [Indexed: 11/19/2022] Open
Abstract
Phytoestrogens have structures similar to endogenous steroids and may induce or inhibit the response of hormone receptors. The objectives of the present study were to compare the effects of long-term vs. short-term grassland management in organic and conventional dairy production systems, compare organic and conventional production systems and assess seasonal variation on phytoestrogen concentrations in bulk-tank milk. The concentrations of phytoestrogens were analyzed in bulk-tank milk sampled three times in two subsequent years from 28 dairy farms: Fourteen organic (ORG) dairy farms with either short-term or long-term grassland management were paired with 14 conventional (CON) farms with respect to grassland management. Grassland management varied in terms of time since establishment. Short-term grassland management (SG) was defined as establishment or reseeding every fourth year or more often, and long-term grassland management (LG) was defined as less frequent establishment or reseeding. The proportion of red clover (Trifolium pretense L.) in the herbage was positively correlated with milk concentrations of the mammalian isoflavone equol. Therefore, organically produced bulk-tank milk contained more equol than conventionally produced milk, and milk from ORG-SG farms had more equol than milk from ORG-LG farms. Milk produced during the indoor-feeding periods had more equol than milk produced during the outdoor feeding period, because pastures contained less red clover than fields intended for silage production. Organically produced milk had also higher concentrations of the mammalian lignan enterolactone, but in contrast to equol, concentrations increased in the outdoor-feeding periods compared to the indoor-feeding periods. There were no indications of fertility problems on ORG-SG farms who had the highest red clover proportions in the herbage. This study shows that production system, grassland management, and season affect milk concentrations of phytoestrogens. However, compared to soy products, milk concentrations of phytoestrogens are low and future studies are required to investigate if the intake of phytoestrogens from dairy products has physiological effects in humans.
Collapse
|
30
|
Antioxidant Activity and Total Phenolic and Flavonoid Content of Various Solvent Extracts from In Vivo and In Vitro Grown Trifolium pratense L. (Red Clover). BIOMED RESEARCH INTERNATIONAL 2015; 2015:643285. [PMID: 26064936 PMCID: PMC4438149 DOI: 10.1155/2015/643285] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Revised: 04/02/2015] [Accepted: 04/22/2015] [Indexed: 11/18/2022]
Abstract
In the present study the extracts of in vivo and in vitro grown plants as well as callus tissue of red clover were tested for their antioxidant activities, using different extraction solvent and different antioxidant assays. The total flavonoid and phenolic contents as well as extraction yield of the extracts were also investigated to determine their correlation with the antioxidant activity of the extracts. Among all the tested extracts the highest amounts of total phenolic and total flavonoids content were found in methanol extract of in vivo grown plants. The antioxidant activity of tested samples followed the order in vivo plant extract > callus extract > in vitro extract. The highest reducing power, 2,2-azino-bis-(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) radical scavenging, and chelating power were found in methanol extracts of in vivo grown red clover, while the chloroform fraction of in vivo grown plants showed the highest 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging, superoxide anion radical scavenging and hydrogen peroxide scavenging compared to the other tested extracts. A significant correlation was found between the antioxidant activity of extracts and their total phenolic and total flavonoid content. According to the findings, the extract of in vitro culture of red clover especially the callus tissue possesses a comparable antioxidant activity to the in vivo cultured plants' extract.
Collapse
|
31
|
Wang M, Si JY, Yu YL, Gao MM, Zhang JY, Xing XY, Liu Y, Sun GB, Sun XB. Red clover flavonoids protect against oxidative stress-induced cardiotoxicity in vivo and in vitro. RSC Adv 2014. [DOI: 10.1039/c4ra08407a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
32
|
Sowa I, Wójciak-Kosior M, Strzemski M, Dresler S, Szwerc W, Blicharski T, Szymczak G, Kocjan R. Biofortification of soy (Glycine max (L.) Merr.) with strontium ions. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:5248-52. [PMID: 24835388 DOI: 10.1021/jf501257r] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Soy (Glycine max (L.) Merr.) is an annual plant cultivated worldwide mostly for food. Moreover, due to its pharmacological properties it is widely used in pharmacy for alleviating the symptoms of osteoporosis. The aim of the present study was to investigate the biofortification of soy treated with various concentrations of strontium. Soy was found to have a strong capacity to absorb Sr(2+) (bioconcentration factor higher than 1). A positive linear correlation (R(2) > 0.98) between the amount of strontium in the growth medium and its content in the plant was also observed. Moreover, at a concentration of 1.5 mM, strontium appeared to be nontoxic and even stimulated plant growth by approximately 19.4% and 22.6% of fresh weight for shoots and roots, respectively. Our research may be useful to obtain vegetable products or herbal preparations containing both phytoestrogens and strontium to prevent postmenopausal osteoporosis.
Collapse
Affiliation(s)
- Ireneusz Sowa
- Department of Analytical Chemistry, Medical University of Lublin , Chodźki 4a, 20-093 Lublin, Poland
| | | | | | | | | | | | | | | |
Collapse
|
33
|
Butkutė B, Lemežienė N, Dabkevičienė G, Jakštas V, Vilčinskas E, Janulis V. Source of variation of isoflavone concentrations in perennial clover species. Pharmacogn Mag 2014; 10:S181-8. [PMID: 24914302 PMCID: PMC4047584 DOI: 10.4103/0973-1296.127373] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2012] [Revised: 11/11/2012] [Accepted: 02/21/2014] [Indexed: 11/04/2022] Open
Abstract
Introduction: Clover has attracted considerable interest not only as a valuable livestock forage plant, but also as an important source of isoflavones. The current study was aimed to assess the variation of concentration of three isoflavones in clover species grown under a cool temperate climate environment in Lithuania. Materials and Methods: Isoflavone contents were quantified in the plant parts of 21 accessions belonging to five perennial species of genus Trifolium (T. pratense, T. repens, T. medium, T. rubens, and T. pannonicum). Daidzein, formononetin, and genistein concentrations were quantified in separate plant parts by reversed-phase high-performance liquid chromatography. The analyte extraction was performed from dried and ground leaves, stems, flowers, and roots. The procedure included acid hydrolysis of isoflavone glycosides to aglycones. Results: According to the averaged sum of the three isoflavones quantified in leaves-stems-flowers, the five clover species ranked as follows: T. medium (7.54-3.62-2.31 mg/g) >T. pratense> T. rubens> T. pannonicum> T. repens (0.191-0.204-0.171 mg/g). The contribution of individual compound to the total isoflavone content depended on the species, accession, and plant part. The major part of the isoflavones is concentrated in leaves or stems; however, there is a great variation also. Conclusion: There exists a large variation in the total as well as in individual concentration of isoflavones among the clover species and plant parts and within species. With regard to isoflavone concentration and variability within species, some accessions of T. medium and T. pratense can be considered a highly promising source of phytoestrogens.
Collapse
Affiliation(s)
- Bronislava Butkutė
- Chemical Research Laboratory, Institute of Agriculture, Lithuanian Research Centre for Agriculture and Forestry, Kėdainiai, Lithuania
| | - Nijolė Lemežienė
- Department of Grass Breeding, Institute of Agriculture, Lithuanian Research Centre for Agriculture and Forestry, Kėdainiai, Lithuania
| | - Giedrė Dabkevičienė
- Laboratory of Genetics and Physiology, Institute of Agriculture, Lithuanian Research Centre for Agriculture and Forestry, Kėdainiai, Lithuania
| | - Valdas Jakštas
- Department of Pharmacognosy of Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Egidijus Vilčinskas
- Department of Grass Breeding, Institute of Agriculture, Lithuanian Research Centre for Agriculture and Forestry, Kėdainiai, Lithuania
| | - Valdimaras Janulis
- Department of Grass Breeding, Institute of Agriculture, Lithuanian Research Centre for Agriculture and Forestry, Kėdainiai, Lithuania
| |
Collapse
|
34
|
Adler S, Purup S, Hansen-Møller J, Thuen E, Gustavsson AM, Steinshamn H. Phyto-oestrogens and their metabolites in milk produced on two pastures with different botanical compositions. Livest Sci 2014. [DOI: 10.1016/j.livsci.2014.02.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
35
|
Spagnuolo P, Rasini E, Luini A, Legnaro M, Luzzani M, Casareto E, Carreri M, Paracchini S, Marino F, Cosentino M. Isoflavone content and estrogenic activity of different batches of red clover (Trifolium pratense L.) extracts: an in vitro study in MCF-7 cells. Fitoterapia 2014; 94:62-9. [PMID: 24508860 DOI: 10.1016/j.fitote.2014.01.027] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2013] [Revised: 01/27/2014] [Accepted: 01/28/2014] [Indexed: 11/29/2022]
Abstract
The estrogenicity of different batches of red clover (Trifolium pratense L., Fabaceae; RCL) extracts and its relationship with the isoflavone content were assessed by measuring MCF-7 cell proliferation by flow cytometry and propidium iodide staining. RCL extracts were compared to estradiol (E2) and to the main RCL isoflavones biochanin A, daidzein, genistein and formononetin. Isoflavone content in the extracts was assayed by HPLC. E2 and isoflavones increased MCF-7 proliferation in a concentration-dependent fashion, with the following potency order: E2>>>genistein>biochanin A=daidzein>formononetin. Extracts increased MCF-7 proliferation with different potencies, which in four out of five extracts correlated with the ratios 5,7-dihydroxyisoflavones/7-hydroxyisoflavones. The efficacy of all extracts increased with decreasing genistein contents. A solution containing the main isoflavones at the average concentration of RCL extracts increased MCF-7 proliferation with higher potency and steeper concentration-response curve. The effects of E2, of RCL extracts and of the isoflavone solution were inhibited by the estrogen receptor antagonist 4-hydroxytamoxifen. Flow cytometric analysis of MCF-7 proliferation is a suitable bioassay for the estrogenicity of RCL extracts, thus expanding the characterization of individual batches beyond assessment of chemical composition and contributing to improved standardization of quality and activity.
Collapse
Affiliation(s)
- Paola Spagnuolo
- Center for Research in Medical Pharmacology, University of Insubria, Varese, Italy
| | - Emanuela Rasini
- Center for Research in Medical Pharmacology, University of Insubria, Varese, Italy
| | - Alessandra Luini
- Center for Research in Medical Pharmacology, University of Insubria, Varese, Italy
| | - Massimiliano Legnaro
- Center for Research in Medical Pharmacology, University of Insubria, Varese, Italy
| | | | | | | | | | - Franca Marino
- Center for Research in Medical Pharmacology, University of Insubria, Varese, Italy
| | - Marco Cosentino
- Center for Research in Medical Pharmacology, University of Insubria, Varese, Italy.
| |
Collapse
|
36
|
Vlaisavljevic S, Kaurinovic B, Popovic M, Djurendic-Brenesel M, Vasiljevic B, Cvetkovic D, Vasiljevic S. Trifolium pratense L. as a potential natural antioxidant. Molecules 2014; 19:713-25. [PMID: 24402202 PMCID: PMC6271154 DOI: 10.3390/molecules19010713] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2013] [Revised: 12/20/2013] [Accepted: 01/02/2014] [Indexed: 11/16/2022] Open
Abstract
The essential oils of three different growth stages of Trifolium pratense L. (TP1, TP2 and TP3) were investigated by gas chromatography-mass spectrometry and tested for their antioxidant and antimicrobial activities. The highest content of volatile compounds was found in the essential oil sample TP1, where terpenes such as β-myrcene (4.55%), p-cymene (3.59%), limonene (0.86%), tetrahydroionone (1.56%) were highlighted due to their biological activity. The antioxidant activity was determined by following the scavenging capacity of the essential oils for the free radicals DPPH·, NO· and O2·-, as well as effects of the investigated oils on lipid peroxidation (LP). In all three cases, the sample TP1 showed the best radical-capturing capacity for DPPH· (27.61±0.12 µg/mL), NO· (16.03±0.11 µg/mL), O2·- (16.62±0.29 µg/mL) and also had the best lipid peroxidation effects in the Fe2+/ascorbate induction system (9.35±0.11 µg/mL). Antimicrobial activity was evaluated against the following bacteria cultures: Escherichia coli (ATCC10526), Salmonella typhimurium (ATCC 14028), Staphylococcus aureus (ATCC 11632) and Bacillus cereus (ATCC 10876). None of the examined essential oil samples showed inhibitory effects on the tested bacterial strains.
Collapse
Affiliation(s)
- Sanja Vlaisavljevic
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, Trg Dositeja Obradovica 3, Novi Sad 21000, Serbia.
| | - Biljana Kaurinovic
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, Trg Dositeja Obradovica 3, Novi Sad 21000, Serbia.
| | - Mira Popovic
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, Trg Dositeja Obradovica 3, Novi Sad 21000, Serbia.
| | - Maja Djurendic-Brenesel
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, Trg Dositeja Obradovica 3, Novi Sad 21000, Serbia.
| | - Bojana Vasiljevic
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, Trg Dositeja Obradovica 3, Novi Sad 21000, Serbia.
| | - Dragoljub Cvetkovic
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, Trg Dositeja Obradovica 3, Novi Sad 21000, Serbia.
| | - Sanja Vasiljevic
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, Trg Dositeja Obradovica 3, Novi Sad 21000, Serbia.
| |
Collapse
|
37
|
|
38
|
Fritz H, Seely D, Flower G, Skidmore B, Fernandes R, Vadeboncoeur S, Kennedy D, Cooley K, Wong R, Sagar S, Sabri E, Fergusson D. Soy, red clover, and isoflavones and breast cancer: a systematic review. PLoS One 2013; 8:e81968. [PMID: 24312387 PMCID: PMC3842968 DOI: 10.1371/journal.pone.0081968] [Citation(s) in RCA: 91] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2013] [Accepted: 10/18/2013] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Soy and red clover isoflavones are controversial due to purported estrogenic activity and possible effects on breast cancer. We conducted a systematic review of soy and red clover for efficacy in improving menopausal symptoms in women with breast cancer, and for potential impact on risk of breast cancer incidence or recurrence. METHODS We searched MEDLINE, Embase, the Cochrane Library, and AMED from inception to March 2013 for human interventional or observational data pertaining to the safety and efficacy of soy and red clover isoflavones in patients with or at risk of breast cancer. RESULTS Of 4179 records, we included a total of 131 articles: 40 RCTs, 11 uncontrolled trials, and 80 observational studies. Five RCTs reported on the efficacy of soy for hot flashes, showing no significant reductions in hot flashes compared to placebo. There is lack of evidence showing harm from use of soy with respect to risk of breast cancer or recurrence, based on long term observational data. Soy intake consistent with that of a traditional Japanese diet (2-3 servings daily, containing 25-50mg isoflavones) may be protective against breast cancer and recurrence. Human trials show that soy does not increase circulating estradiol or affect estrogen-responsive target tissues. Prospective data of soy use in women taking tamoxifen does not indicate increased risk of recurrence. Evidence on red clover is limited, however existing studies suggest that it may not possess breast cancer-promoting effects. CONCLUSION Soy consumption may be associated with reduced risk of breast cancer incidence, recurrence, and mortality. Soy does not have estrogenic effects in humans. Soy intake consistent with a traditional Japanese diet appears safe for breast cancer survivors. While there is no clear evidence of harm, better evidence confirming safety is required before use of high dose (≥ 100 mg) isoflavones can be recommended for breast cancer patients.
Collapse
Affiliation(s)
- Heidi Fritz
- Department of Research & Clinical Epidemiology, Canadian College of Naturopathic Medicine, Toronto, Ontario, Canada
| | - Dugald Seely
- Department of Research & Clinical Epidemiology, Canadian College of Naturopathic Medicine, Toronto, Ontario, Canada
- Clinical Epidemiology, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
- Ottawa Integrative Cancer Center, Ottawa, Ontario, Canada
| | - Gillian Flower
- Department of Research & Clinical Epidemiology, Canadian College of Naturopathic Medicine, Toronto, Ontario, Canada
| | - Becky Skidmore
- Clinical Epidemiology, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Rochelle Fernandes
- Department of Research & Clinical Epidemiology, Canadian College of Naturopathic Medicine, Toronto, Ontario, Canada
- Laboratory Medicine and Pathobiology (LMP), University of Toronto, Toronto, Ontario, Canada
| | - Sarah Vadeboncoeur
- Department of Research & Clinical Epidemiology, Canadian College of Naturopathic Medicine, Toronto, Ontario, Canada
| | - Deborah Kennedy
- Department of Research & Clinical Epidemiology, Canadian College of Naturopathic Medicine, Toronto, Ontario, Canada
- Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Ontario, Canada
| | - Kieran Cooley
- Department of Research & Clinical Epidemiology, Canadian College of Naturopathic Medicine, Toronto, Ontario, Canada
- Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Ontario, Canada
| | - Raimond Wong
- Juravinski Cancer Centre and Department of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Stephen Sagar
- Juravinski Cancer Centre and Department of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Elham Sabri
- Clinical Epidemiology, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Dean Fergusson
- Clinical Epidemiology, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| |
Collapse
|
39
|
Kowalska I, Jedrejek D, Ciesla L, Pecio L, Masullo M, Piacente S, Oleszek W, Stochmal A. Isolation, chemical and free radical scavenging characterization of phenolics from Trifolium scabrum L. aerial parts. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:4417-4423. [PMID: 23586332 DOI: 10.1021/jf400153c] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
For the first time Trifolium scabrum L. was researched for its phenolic profile. Sixteen phenolics (isoflavones and flavonoids) were isolated and identified in the aerial parts of T. scabrum L. Their structures were established by electrospray ionization-mass spectrometry (ESI-MS) and nuclear magnetic resonance (NMR) techniques. Quantitative analysis of individual phenolics performed by means of ultraperformance liquid chromatography-mass spectrometry (UPLC-MS) was based on calibration curves obtained for previously isolated standard compounds. Additionally, the free radical scavenging potential of these substances was assessed by means of a simple benchtop thin-layer chromatography-2,2-diphenyl-1-picrylhydrazyl radical (TLC-DPPH(•)) bioassay. Thus, T. scabrum L. can be regarded as a potential source of estrogenic and antioxidant compounds, both of significance in the pharmaceutical as well as the food industry. The results show that T. scabrum L. can be considered as a natural and very good commercial source of phenolic compounds (mainly isoflavones).
Collapse
Affiliation(s)
- Iwona Kowalska
- Department of Biochemistry and Crop Quality, Institute of Soil Science and Plant Cultivation-State Research Institute, Pulawy, Poland.
| | | | | | | | | | | | | | | |
Collapse
|
40
|
Höjer A, Adler S, Purup S, Hansen-Møller J, Martinsson K, Steinshamn H, Gustavsson AM. Effects of feeding dairy cows different legume-grass silages on milk phytoestrogen concentration. J Dairy Sci 2012; 95:4526-40. [PMID: 22818467 DOI: 10.3168/jds.2011-5226] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2011] [Accepted: 04/07/2012] [Indexed: 01/26/2023]
Abstract
Phytoestrogens are hormone-like substances in plants that can substantially influence human health (positively or negatively), and when fed to dairy cows are partly transferred to their milk. The aim of this study was to investigate the effects of varying the botanical composition and regrowth interval of legume-grass silage on phytoestrogen intake and milk phytoestrogen concentrations. In one experiment, 15 Swedish Red dairy cows were fed 2- or 3-cut red clover-grass silage, or 2-cut birdsfoot trefoil-grass silage. In a second experiment, 16 Norwegian Red dairy cows were fed short-term ley silage with red clover or long-term ley silage with white clover, and the effects of supplementation with α-tocopherol were also tested. High concentrations of formononetin and biochanin A were found in all silage mixtures with red clover. The milk concentration of equol was highest for cows on the 2-cut red clover-grass silage diet (1,494 μg/kg of milk). Because of the metabolism of biochanin A, genistein, and prunetin, their concentrations in milk and the apparent recovery were low. Coumestrol was detected in only short-term and long-term ley silage mixtures, and its milk concentration was low. Concentrations of secoisolariciresinol and matairesinol were higher in 2-cut birdsfoot trefoil-grass and long-term ley silage mixtures, those with legume species other than red clover, and the highest grass proportions. The 2-cut birdsfoot trefoil-grass silage diet also resulted in higher enterolactone concentration than the other diets (226 μg/kg of milk). Lengthening the regrowth interval increased the intake of secoisolariciresinol and decreased the recovery of lignans. Feeding long-term ley silage resulted in higher milk lignan concentrations but lower milk isoflavone concentrations than feeding short-term ley silage. The apparent recovery of all phytoestrogens except prunetin was highest on the 2-cut birdsfoot trefoil-grass silage diet. No effect of α-tocopherol supplementation was observed on milk concentrations of any of the measured phytoestrogens. Variations were observed in milk concentrations of phytoestrogens, especially of equol, among cows, which could not be explained by variations in diet composition or phytoestrogen intake. The results show that milk phytoestrogen concentration is strongly influenced by silage botanical composition, but questions regarding phytoestrogen metabolism remain to be answered.
Collapse
Affiliation(s)
- A Höjer
- Swedish University of Agricultural Sciences, Department of Agricultural Research for Northern Sweden, SE-901 83 Umeå, Sweden.
| | | | | | | | | | | | | |
Collapse
|
41
|
Phyto-oestrogens in herbage and milk from cows grazing white clover, red clover, lucerne or chicory-rich pastures. Animal 2012; 3:1189-95. [PMID: 22444849 DOI: 10.1017/s1751731109004613] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
A grazing experiment was carried out to study the concentration of phyto-oestrogens in herbage for cattle and in milk during two periods (May and June). Forty-eight Danish Holstein cows were divided into four groups with four treatment diets; white clover, red clover, lucerne and chicory-rich pastures. Each experimental period lasted 15 days. Herbage samples from the first day and individual milk samples from the last day of the experimental period were analysed for phyto-oestrogens using LC-MS technique. The total concentration of phyto-oestrogens was 21 399 mg/kg dry matter (DM) for red clover and 238 to 466 mg/kg DM for the other three herbages mainly due to a much higher concentration of biochanin A, formononetin and glycitein in red clover. In the milk, the total concentration of phyto-oestrogens was 253 to 397 μg/l for red clover milk and 56 to 91 μg/l in the milk from the other three treatments. This was especially due to a higher concentration of equol, daidzein and formononetin in the red clover milk. The concentration of biochanin A was significantly higher in milk from the red clover treatment in May while no differences were observed in June. Enterodiol was similar across treatments while the concentration of enterolactone was significantly lower for red clover milk compared with the other treatments. Of the tested pastures, red clover appears to have the highest concentration and to be the best source of phyto-oestrogens, especially equol, in bovine milk.
Collapse
|
42
|
Proliferative effect of whey from cows’ milk varying in phyto-oestrogens in human breast and prostate cancer cells. J DAIRY RES 2012; 79:143-9. [DOI: 10.1017/s0022029911000902] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Intake of dietary phyto-oestrogens has received a great deal of attention owing to their potential influence on hormone-sensitive cancers such as breast and prostate cancer. Cows’ milk contains phyto-oestrogens and the content varies according to the composition of the feed and the type and amount of legumes used. In this study we evaluated the proliferative effect of milk (whey) with different phyto-oestrogen content in human breast (MCF-7) and prostate cancer cells (PC-3). Milk was obtained from cows fed either a birdsfoot trefoil-timothy silage based ration (B1) or two different red clover silage based diets (R1 and R2) resulting in total phyto-oestrogen contents of 403, 1659 and 1434 ng/ml for the B1, R1 and R2 diets, respectively. Whey was produced from the milk and added to cell culture medium in concentrations up to 10% for MCF-7 cells and 5% for PC-3 cells. Cell proliferation was measured fluorometrically after 7 d for MCF-7 cells and 5 d for PC-3 cells. There was no significant difference in the proliferative effect of whey from the different dietary treatments at any of the whey concentrations tested. An anti-proliferative effect (P<0·01) of 5 and 10% whey was seen when tested in the presence of 10 pmoestradiol in the medium. This effect was independent of dietary treatment of cows. Whey induced a significant (P<0·01) proliferative response in PC-3 cells independent of dietary treatment. Purified equol in concentrations similar to equol concentrations in milk decreased PC-3 cell proliferation, and therefore the stimulatory effect of whey in PC-3 cells is believed to be mediated by other bioactives than equol. In conclusion, our results suggest that using whey in these proliferation assays, it was not possible to discriminate between milk with high or low levels of phyto-oestrogens.
Collapse
|
43
|
Villaseca P. Non-estrogen conventional and phytochemical treatments for vasomotor symptoms: what needs to be known for practice. Climacteric 2011; 15:115-24. [PMID: 22148909 DOI: 10.3109/13697137.2011.624214] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
OBJECTIVE Non-hormonal treatment for menopausal vasomotor symptoms (VMS) is needed in women in whom there are medical or personal concerns on the use of hormone therapy. This paper reviews conventional and phytochemical therapies available for the relief of VMS, on their mechanisms of action, their efficacy and safety concerns. METHODS Medline was searched through Pubmed on the names of the diverse therapies analyzed, up to June 2011. The Cochrane Controlled Clinical Trials Register Database was searched for relevant trials that provided data on treatment of menopausal hot flushes. RESULTS All non-estrogen treatments for VMS are less efficacious than estrogen treatment. Randomized trials with neuroendocrine agents show globally modest to moderate reduction of VMS and frequent bothersome adverse events. The variability of effects makes it possible to undergo treatment in search for individual response where estrogen treatment is contraindicated. The antidepressants that interact with cytochrome P450, inhibiting tamoxifen metabolism to endoxifen, interfere with tamoxifen therapy in breast cancer patients. Otherwise, botanical products containing isoflavones from soy bean or red clover have great variability in bioavailability, have a broader spectrum of action than estradiol, and have predominant estrogen receptor-b activity. The efficacy of phytoestrogens on VMS is similar to placebo. They should be avoided in women with breast cancer and, in particular, in women being treated with tamoxifen or aromatase inhibitors due to possible antagonism. Cimicifuga racemosa is not a phytoestrogen, has partial serotonin agonist action and has a modest effect on VMS. CONCLUSIONS There are safe non-hormonal conventional treatments for menopausal VMS, although they are less efficacious than estrogens. The indication of phytochemicals is for women who make this choice on personal beliefs; long-term studies of larger groups of patients are needed to assess safety.
Collapse
Affiliation(s)
- P Villaseca
- Departamento de Endocrinología, Pontificia Universidad Católica de Chile, Endocrinología, Lira 85, Santiago, Chile
| |
Collapse
|
44
|
Abstract
This study was designed to investigate the potential estrogenic effects of perinatal dietary phytoestrogens on the rat uterus. Pregnant rats were divided to three groups provided the following diets: (1) rat chow, (2) rat chow with 7.5% Trifolium (T.) pratense, or (3) rat chow supplemented with 17β-estradiol (0.5 mg/kg). The dams in each group were kept on the same diet during pregnancy and lactation. Female offspring were euthanized on day 21 at which time body and organ weights were recorded and tissue samples were taken for histology. Immunohistochemistry was performed to detect estrogen receptor alpha (ERα) and progesterone receptor (PR) levels. Our results revealed estrogen-like biological effects of perinatal T. pratense exposure. Relative uterus and ovary weights in the experimental groups were increased compared to control. The number of uterine glands and luminal epithelium heights were also increased. However, there were no statistically significant changes detected in the immunostaining intensity of ERα and PR between the groups.
Collapse
Affiliation(s)
- Emrah Yatkin
- Department of Histology and Embryology, Faculty of Veterinary Medicine, Istanbul University, 34320 Avcilar, Istanbul, Turkey.
| | | |
Collapse
|
45
|
Significant changes in dietary intake and supplement use after breast cancer diagnosis in a UK multicentre study. Breast Cancer Res Treat 2011; 128:473-82. [DOI: 10.1007/s10549-010-1238-8] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2010] [Accepted: 10/20/2010] [Indexed: 10/18/2022]
|
46
|
Muzitano MF, Bergonzi MC, De Melo GO, Lage CLS, Bilia AR, Vincieri FF, Rossi-Bergmann B, Costa SS. Influence of cultivation conditions, season of collection and extraction method on the content of antileishmanial flavonoids from Kalanchoe pinnata. JOURNAL OF ETHNOPHARMACOLOGY 2011; 133:132-137. [PMID: 20883762 DOI: 10.1016/j.jep.2010.09.020] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2010] [Revised: 09/14/2010] [Accepted: 09/17/2010] [Indexed: 05/29/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Leaves from Kalanchoe pinnata (Lamarck) Persoon (Crassulaceae) are popularly used for healing wounds. Its antileishmanial properties are established in experimental animals, and its active flavonoid components have been identified. AIM OF THE STUDY In this study, we attempted to standardize the extract from K. pinnata leaves by evaluating the influence of season of harvest, sunlight exposure and method of extraction on antileishmanial flavonoids content. MATERIALS AND METHODS HPLC-DAD-MS was used to identify and quantify the active antileishmanial flavonoids in different extracts. ANOVA test for analyses of variance followed by the Tukey test of multiple comparisons were used in the statistical analysis. The antileishmanial potential was assessed by the activation of nitric oxide production by murine macrophage using the Griess method. RESULTS We demonstrated that active flavonoids were significantly more abundant when the leaves were collected in the summer, and that aqueous extraction at 50°C allowed the highest flavonoid extraction. The benefit of sunlight exposure was confirmed in plants cultivated under direct sunlight when compared with those that grown under shade. Under sunny conditions the yield of the most active antileishmanial favonoid quercitrin was increased by 7-fold. All aqueous extracts tested were capable to enhance the macrophage nitric oxide production. However, hot aqueous extract from leaves collected in summer exhibited the higher activity, in agreement with HPLC-DAD-MS analysis tendency. In addition, with the aim of reducing the individual chemical variations of the plant constituents and optimizing the production of the active extract, it was obtained in vitro monoclonal KP specimens that were easily adapted to field conditions and were able to produce antileishmanial flavonoids. CONCLUSION Our study reports the better conditions of cultivation, harvest and extraction protocol for obtaining a K. pinnata extract exhibiting the highest antileishmanial activity. Additionally, we propose the flavonoids quercetin 3-O-α-L-arabinopyranosyl (1→2)-α-L-rhamnopyranoside and quercitrin, as satisfactory chemical markers for standardization purposes.
Collapse
Affiliation(s)
- Michelle F Muzitano
- Núcleo de Pesquisas de Produtos Naturais, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | | | | | | | | | | | | | | |
Collapse
|
47
|
|
48
|
The effect of Rexflavone (Sophorae fructus extract) on menopausal symptoms in postmenopausal women: a randomized double-blind placebo controlled clinical trial. Arch Pharm Res 2010; 33:523-30. [PMID: 20422360 DOI: 10.1007/s12272-010-0405-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2009] [Revised: 01/29/2010] [Accepted: 02/02/2010] [Indexed: 10/19/2022]
Abstract
To observe the protective effect of orally administrated Rexflavone (Sophorae fructus extract) for the postmenopausal symptoms, a randomized double-blind placebo controlled clinical trial was designed. Rexflavone significantly improved 11 menopausal symptoms including hot flash, which was evaluated by the modified Kupperman Index (KI), while hormone level and lipid profile were little changed by consumption. Rexflavone group significantly decreased KI score (-14.91 +/- 8.79) compared to placebo group (-11.45 +/- 6.62) as a representative index for improvement of menopausal symptoms (p < 0.05). We found that Rexflavone has no adverse effect to be safe for long term consumption. It was shown that the consumption of Rexflavone possessed beneficial effects on the postmenopausal symptoms in postmenopausal women.
Collapse
|
49
|
Parveen I, Threadgill MD, Moorby JM, Winters A. Oxidative phenols in forage crops containing polyphenol oxidase enzymes. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2010; 58:1371-82. [PMID: 20078064 DOI: 10.1021/jf9024294] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Polyphenol oxidases (PPOs) are copper-containing enzymes that catalyze oxidation of endogenous monophenols to ortho-dihydroxyaryl compounds and of ortho-dihydroxyaryl compounds to ortho-quinones. Subsequent nucleophilic addition reactions of phenols, amino acids, and proteins with the electrophilic ortho-quinones form brown-, black-, or red-colored secondary products associated with the undesired discolouration of fruit and vegetables. Several important forage plants also exhibit significant PPO activity, and a link with improved efficiency of ruminant production has been established. In ruminant animals, extensive degradation of forage proteins, following consumption, can result in high rates of excretion of nitrogen, which contributes to point-source and diffuse pollution. Reaction of quinones with forage proteins leads to the formation of protein-phenol complexes that are resistant to proteolytic activity during ensilage and during rumen fermentation. Thus, PPO in red clover (Trifolium pratense) has been shown to improve protein utilization by ruminants. While PPO activity has been demonstrated in a number of forage crops, little work has been carried out to identify substrates of PPO, knowledge of which would be beneficial for characterizing this trait in these forages. In general, a wide range of 1,2-dihydroxyarenes can serve as PPO substrates because these are readily oxidized because of the ortho positioning of the hydroxy groups. Naturally occurring phenols isolated from forage crops with PPO activity are reviewed. A large number of phenols, which may be directly or indirectly oxidized as a consequence of PPO activity, have been identified in several forage grass, legume, cereal, and brassica species; these include hydroxybenzoic acids, hydroxycinnamates, and flavonoids. In conclusion, a number of compounds are known or postulated to enable PPO activity in important PPO-expressing forage crops. Targeting the matching of these compounds with PPO activity would be a useful plant breeding approach to improve the utilization of feed nitrogen by ruminant livestock and help reduce the environmental impact of livestock agriculture in temperate countries.
Collapse
Affiliation(s)
- Ifat Parveen
- Institute of Biological, Environmental and Rural Sciences, Aberystwyth University, Gogerddan, Aberystwyth SY23 3EB, UK.
| | | | | | | |
Collapse
|
50
|
Krenn L, Paper DH. Inhibition of angiogenesis and inflammation by an extract of red clover (Trifolium pratense L.). PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2009; 16:1083-1088. [PMID: 19665361 DOI: 10.1016/j.phymed.2009.05.017] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2008] [Revised: 05/05/2009] [Accepted: 05/29/2009] [Indexed: 05/28/2023]
Abstract
Antiangiogenic compounds are gaining more and more interest as a new approach in the prevention and treatment of cancer and inflammatory diseases. The objective of this study was the evaluation of the antiangiogenic effect of a red clover extract (RCE) used in food supplements for menopausal complaints as well as of its main isoflavones in an in vivo system, the chorioallantoic membrane assay of fertilized hen's eggs. At a dosage of 250 microg/pellet the red clover extract showed excellent inhibition of angiogenesis. The antiangiogenic activity of the non-methylated isoflavones daidzein and genistein was higher than that of the methylated compounds formononentin and biochanin A. The results demonstrate that RCE is not only suitable for menopausal complaints, but might also be a powerful chemopreventive agent against chronic diseases e.g. which have a high incidence especially in elderly female.
Collapse
Affiliation(s)
- L Krenn
- Department of Anatomy, Chonbuk National University Medical School, Jeonju, Jeonbuk 561-756, Republic of Korea
| | | |
Collapse
|