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Ellouze I, Korlagunta K, Lucas EA, Payton M, Singar S, Arjmandi BH. The Effects of Flaxseed Consumption on Glycemic Control in Native American Postmenopausal Women with Hyperglycemia and Hyperlipidemia. Healthcare (Basel) 2024; 12:1392. [PMID: 39057535 PMCID: PMC11276366 DOI: 10.3390/healthcare12141392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2024] [Revised: 06/30/2024] [Accepted: 07/09/2024] [Indexed: 07/28/2024] Open
Abstract
Glucose control in postmenopausal women is influenced by many factors, such as hormones, lifestyle variables, and genetics. Limited data exist on the effect of whole flaxseed on glucose status in postmenopausal Native American women. The aim of this study was to investigate the glucose management effect of a flaxseed dietary intervention on postmenopausal Native American women. In this study, 55 Native American postmenopausal women (aged 47-63 years) with borderline hyperglycemia (>100 and <126 mg/dL) and mild to moderate hypercholestorolemia (≥200 to ≤380 mmol/L), who were not on hormone replacement therapy, were enrolled. Participants were randomly assigned to one of the three dietary regimens (control, flaxseed, and flaxseed + fiber) for three months, receiving interventions in the form of bread, muffins, and flaxseed powder. Despite daily consumption of flaxseed across diverse food formats, no significant changes in glucose (p = 0.3, p = 0.2), insulin levels (p = 0.59, p = 0.9), or HOMA-IR (p = 0.84, p = 0.66) were observed compared to their respective baseline values within the flaxseed and flaxseed + fiber groups, respectively. Conversely, the control group showed a significant rise in final glucose values from baseline (p = 0.01). However, the incorporation of ground flaxseed into low-glycemic foods holds potential for beneficial effects through maintaining glucose status among postmenopausal Native American women. This research provides critical insights into the effects of flaxseed, emphasizing the need for continued exploration to understand its role in supporting glucose management among postmenopausal Native American women. Further exploration is required to investigate the potential long-term impact and the use of flaxseed in managing glucose levels in this demographic.
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Affiliation(s)
- Ines Ellouze
- Functional Physiology and Bio-Resources Valorization Laboratory, Higher Institute of Biotechnology of Beja, Jendouba University, Beja 9000, Tunisia
| | | | - Edralin A. Lucas
- Nutritional Sciences, College of Education and Human Sciences, Oklahoma State University, Stillwater, OK 74078, USA
| | - Mark Payton
- Biomedical Sciences, Rocky Vista University, Englewood, CO 80112, USA;
| | - Saiful Singar
- Nutrition, Food, and Exercise Sciences, College of Human Sciences, Florida State University, Tallahassee, FL 32306, USA
| | - Bahram H. Arjmandi
- Nutrition, Food, and Exercise Sciences, College of Human Sciences, Florida State University, Tallahassee, FL 32306, USA
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Chowdhury R, Bhuia MS, Wilairatana P, Afroz M, Hasan R, Ferdous J, Rakib AI, Sheikh S, Mubarak MS, Islam MT. An insight into the anticancer potentials of lignan arctiin: A comprehensive review of molecular mechanisms. Heliyon 2024; 10:e32899. [PMID: 38988539 PMCID: PMC11234030 DOI: 10.1016/j.heliyon.2024.e32899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 05/10/2024] [Accepted: 05/22/2024] [Indexed: 07/12/2024] Open
Abstract
Natural products are being developed as possible treatment options due to the rising prevalence of cancer and the harmful side effects of synthetic medications. Arctiin is a naturally occurring lignan found in numerous plants and exhibits different pharmacological activities, along with cancer. To elucidate the anticancer properties and underlying mechanisms of action, a comprehensive search of various electronic databases was conducted using appropriate keywords to identify relevant publications. The findings suggest that arctiin exhibits anticancer properties against tumor formation and various cancers such as cervical, myeloma, prostate, endothelial, gastric, and colon cancers in several preclinical pharmacological investigations. This naturally occurring compound exerts its anticancer effect through different cellular mechanisms, including mitochondrial dysfunction, cell cycle at different phases (G2/M), inhibition of cell proliferation, apoptotic cell death, and cytotoxic effects, as well as inhibition of migration and invasion of various malignant cells. Moreover, the study also revealed that, among the various cellular pathways, arctiin was shown to be more potent in terms of the PI3K/AKT and JAK/STAT signaling pathways. However, pharmacokinetic investigation indicated the compound's poor oral bioavailability. Because of these findings, arctiin might be considered a promising chemotherapeutic drug candidate.
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Affiliation(s)
- Raihan Chowdhury
- Department of Pharmacy, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj 8100, Bangladesh
- Phytochemistry and Biodiversity Research Laboratory, BioLuster Research Center, Gopalganj 8100, Dhaka, Bangladesh
| | - Md. Shimul Bhuia
- Department of Pharmacy, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj 8100, Bangladesh
- Phytochemistry and Biodiversity Research Laboratory, BioLuster Research Center, Gopalganj 8100, Dhaka, Bangladesh
| | - Polrat Wilairatana
- Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand
| | - Meher Afroz
- Department of Pharmacy, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj 8100, Bangladesh
- Phytochemistry and Biodiversity Research Laboratory, BioLuster Research Center, Gopalganj 8100, Dhaka, Bangladesh
| | - Rubel Hasan
- Department of Pharmacy, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj 8100, Bangladesh
- Phytochemistry and Biodiversity Research Laboratory, BioLuster Research Center, Gopalganj 8100, Dhaka, Bangladesh
| | - Jannatul Ferdous
- Phytochemistry and Biodiversity Research Laboratory, BioLuster Research Center, Gopalganj 8100, Dhaka, Bangladesh
- Department of Biotechnology and Genetic Engineering, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj 8100, Bangladesh
| | - Asraful Islam Rakib
- Department of Pharmacy, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj 8100, Bangladesh
- Phytochemistry and Biodiversity Research Laboratory, BioLuster Research Center, Gopalganj 8100, Dhaka, Bangladesh
| | - Salehin Sheikh
- Department of Pharmacy, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj 8100, Bangladesh
- Phytochemistry and Biodiversity Research Laboratory, BioLuster Research Center, Gopalganj 8100, Dhaka, Bangladesh
| | | | - Muhammad Torequl Islam
- Department of Pharmacy, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj 8100, Bangladesh
- Phytochemistry and Biodiversity Research Laboratory, BioLuster Research Center, Gopalganj 8100, Dhaka, Bangladesh
- Pharmacy Discipline, Khulna University, Khulna 9208, Bangladesh
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Messina MJ, Messina V, Nagata C. Perspective: Observational Studies Involving Low-Soy Intake Populations Have Limited Ability for Providing Insight into the Health Effects of Soybean Isoflavones. Adv Nutr 2024; 15:100210. [PMID: 38484974 PMCID: PMC10992291 DOI: 10.1016/j.advnut.2024.100210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 02/28/2024] [Accepted: 03/11/2024] [Indexed: 04/01/2024] Open
Abstract
Isoflavones are naturally occurring plant compounds found in uniquely high amounts in soybeans and foods made from this legume. These soybean constituents have been proposed to exert several health benefits and as such they have been the subject of an enormous amount of research. This research includes randomized controlled trials (RCTs) and epidemiologic investigations. Although statistically significant associations between isoflavone intake and a wide range of health outcomes have been identified in cohorts involving low-isoflavone intake populations, we suggest that these associations are unlikely to have a causal basis because exposure is too low for isoflavones to exert physiologic effects. In cohorts involving predominantly non-Asian, non-vegetarian populations, the highest isoflavone intake category is typically ≤3 mg/d, an amount of isoflavones provided by ∼30 mL (2 tablespoons) of soymilk made from whole soybeans. In comparison, mean isoflavone intake in the upper intake categories in observational studies involving high-isoflavone intake populations is typically ≥50 mg/d. In RCTs, intervention doses of isoflavones typically range between 40 and 100 mg/d. Health professionals advising patients and clients about soy food and isoflavone intake need to be aware of the limitations of epidemiologic research involving low-isoflavone intake populations. Intake recommendations are best based on the results of RCTs using clinically relevant doses of isoflavones and epidemiologic studies involving populations for whom soy foods are a habitual part of the diet.
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Affiliation(s)
- Mark J Messina
- Soy Nutrition Institute Global, Jefferson City, MO, United States.
| | | | - Chisato Nagata
- Department of Epidemiology and Preventive Medicine, Gifu University Graduate School of Medicine, Gifu, Japan
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Bakrim S, El Omari N, Khan EJ, Khalid A, Abdalla AN, Chook JB, Goh KW, Ming LC, Aboulaghras S, Bouyahya A. Phytosterols activating nuclear receptors are involving in steroid hormone-dependent cancers: Myth or fact? Biomed Pharmacother 2023; 169:115783. [PMID: 37944439 DOI: 10.1016/j.biopha.2023.115783] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 10/17/2023] [Accepted: 10/20/2023] [Indexed: 11/12/2023] Open
Abstract
Nuclear receptors (NRs) represent intracellular proteins that function as a signaling network of transcriptional factors to control genes in response to a variety of environmental, dietary, and hormonal stimulations or serve as orphan receptors lacking a recognized ligand. They also play an essential role in normal development, metabolism, cell growth, cell division, physiology, reproduction, and homeostasis and function as biological markers for tumor subclassification and as targets for hormone therapy. NRs, including steroid hormone receptors (SHRs), have been studied as tools to examine the fundamentals of transcriptional regulation within the development of mammals and human physiology, in addition to their links to disturbances. In this regard, it is widely recognized that aberrant NR signaling is responsible for the pathological growth of hormone-dependent tumors in response to SHRs dysregulation and consequently represents a potential therapeutic candidate in a range of diseases, as in the case of prostate cancer and breast cancer. On the other hand, phytosterols are a group of plant-derived compounds that act directly as ligands for NRs and have proven their efficacy in the management of diabetes, heart diseases, and cancers. However, these plants are not suggested in cases of hormone-dependent cancer since a certain group of plants contains molecules with a chemical structure similar to that of estrogens, which are known as phytoestrogens or estrogen-like compounds, such as lignans, coumestans, and isoflavones. Therefore, it remains an open and controversial debate regarding whether consuming a phytosterol-rich diet and adopting a vegetarian lifestyle like the Mediterranean diet may increase the risk of developing steroid hormone-dependent cancers by constitutively activating SHRs and thereby leading to tumor transformation. Overall, the purpose of this review is to better understand the relevant mechanistic pathways and explore epidemiological investigations in order to establish that phytosterols may contribute to the activation of NRs as cancer drivers in hormone-dependent cancers.
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Affiliation(s)
- Saad Bakrim
- Geo-Bio-Environment Engineering and Innovation Laboratory, Molecular Engineering, Biotechnology and Innovation Team, Polydisciplinary Faculty of Taroudant, Ibn Zohr University, Agadir 80000, Morocco
| | - Nasreddine El Omari
- Laboratory of Histology, Embryology, and Cytogenetic, Faculty of Medicine and Pharmacy, Mohammed V University in Rabat, Rabat 10100, Morocco
| | | | - Asaad Khalid
- Substance Abuse and Toxicology Research Center, Jazan University, P.O. Box: 114, Jazan 45142, Saudi Arabia; Medicinal and Aromatic Plants and Traditional Medicine Research Institute, National Center for Research, P. O. Box 2404, Khartoum, Sudan.
| | - Ashraf N Abdalla
- Department of Pharmacology and Toxicology, College of Pharmacy, Umm Al-Qura University, Makkah 21955, Saudi Arabia
| | - Jack Bee Chook
- School of Medical and Life Sciences, Sunway University, Sunway City, Malaysia.
| | - Khang Wen Goh
- Faculty of Data Science and Information Technology, INTI International University, Nilai, Malaysia.
| | - Long Chiau Ming
- School of Medical and Life Sciences, Sunway University, Sunway City, Malaysia.
| | - Sara Aboulaghras
- Laboratory of Human Pathologies Biology, Department of Biology, Faculty of Sciences, Mohammed V University in Rabat, Rabat 10106, Morocco
| | - Abdelhakim Bouyahya
- Laboratory of Human Pathologies Biology, Department of Biology, Faculty of Sciences, Mohammed V University in Rabat, Rabat 10106, Morocco.
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Vingrys K, Mathai ML, Apostolopoulos V, Bassett JK, de Courten M, Stojanovska L, Millar L, Giles GG, Milne RL, Hodge AM, McAinch AJ. Estimated dietary intake of polyphenols from cereal foods and associated lifestyle and demographic factors in the Melbourne Collaborative Cohort Study. Sci Rep 2023; 13:8556. [PMID: 37237174 PMCID: PMC10220042 DOI: 10.1038/s41598-023-35501-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 05/18/2023] [Indexed: 05/28/2023] Open
Abstract
Cereal foods are consumed globally and are important sources of polyphenols with potential health benefits, yet dietary intakes are unclear. We aimed to calculate the dietary intakes of polyphenols from cereal foods in the Melbourne Collaborative Cohort Study (MCCS), and describe intakes by demographic and lifestyle factors. We estimated intakes of alkylresorcinols, lignans and phenolic acids in n = 39,892 eligible MCCS participants, using baseline dietary data (1990-1994) from a 121-item FFQ containing 17 cereal foods, matched to a polyphenol database developed from published literature and Phenol-Explorer Database. Intakes were estimated within groups according to lifestyle and demographic factors. The median (25th-75th percentile) intake of total polyphenols from cereal foods was 86.9 mg/day (51.4-155.8). The most consumed compounds were phenolic acids, with a median intake of 67.1 mg (39.5-118.8), followed by alkylresorcinols of 19.7 mg (10.8-34.6). Lignans made the smallest contribution of 0.50 mg (0.13-0.87). Higher polyphenol intakes were associated with higher relative socio-economic advantage and prudent lifestyles, including lower body mass index (BMI), non-smoking and higher physical activity scores. The findings based on polyphenol data specifically matched to the FFQ provide new information on intakes of cereal polyphenols, and how they might vary according to lifestyle and demographic factors.
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Affiliation(s)
- Kristina Vingrys
- Institute for Health and Sport, Victoria University, PO Box 14428, Melbourne, VIC, 8001, Australia.
- VU First Year College ®, Victoria University, PO Box 14428, Melbourne, VIC, 8001, Australia.
| | - Michael L Mathai
- Institute for Health and Sport, Victoria University, PO Box 14428, Melbourne, VIC, 8001, Australia
| | - Vasso Apostolopoulos
- Institute for Health and Sport, Victoria University, PO Box 14428, Melbourne, VIC, 8001, Australia
- Australian Institute for Musculoskeletal Science (AIMSS), Victoria University, PO Box 14428, Melbourne, VIC, 8001, Australia
| | - Julie K Bassett
- Cancer Epidemiology Division, Cancer Council Victoria, 615 St Kilda Rd, Melbourne, VIC, 3004, Australia
| | - Maximilian de Courten
- Institute for Health and Sport, Victoria University, PO Box 14428, Melbourne, VIC, 8001, Australia
- Mitchell Institute for Education and Health Policy, Victoria University, 300 Queen St, Melbourne, VIC, Australia
| | - Lily Stojanovska
- Institute for Health and Sport, Victoria University, PO Box 14428, Melbourne, VIC, 8001, Australia
- Department of Nutrition and Health, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, UAE
| | - Lynne Millar
- Institute for Health and Sport, Victoria University, PO Box 14428, Melbourne, VIC, 8001, Australia
- Telethon Kids Institute, 15 Hospital Avenue, Nedlands, WA, 6009, Australia
| | - Graham G Giles
- Cancer Epidemiology Division, Cancer Council Victoria, 615 St Kilda Rd, Melbourne, VIC, 3004, Australia
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Parkville, VIC, Australia
- Precision Medicine, School of Clinical Sciences at Monash Health, Monash University, Clayton, VIC, Australia
| | - Roger L Milne
- Cancer Epidemiology Division, Cancer Council Victoria, 615 St Kilda Rd, Melbourne, VIC, 3004, Australia
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Parkville, VIC, Australia
- Precision Medicine, School of Clinical Sciences at Monash Health, Monash University, Clayton, VIC, Australia
| | - Allison M Hodge
- Cancer Epidemiology Division, Cancer Council Victoria, 615 St Kilda Rd, Melbourne, VIC, 3004, Australia
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Parkville, VIC, Australia
| | - Andrew J McAinch
- Institute for Health and Sport, Victoria University, PO Box 14428, Melbourne, VIC, 8001, Australia
- Australian Institute for Musculoskeletal Science (AIMSS), Victoria University, PO Box 14428, Melbourne, VIC, 8001, Australia
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Yang J, Shen H, Mi M, Qin Y. Isoflavone Consumption and Risk of Breast Cancer: An Updated Systematic Review with Meta-Analysis of Observational Studies. Nutrients 2023; 15:2402. [PMID: 37242286 PMCID: PMC10224089 DOI: 10.3390/nu15102402] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Revised: 05/12/2023] [Accepted: 05/16/2023] [Indexed: 05/28/2023] Open
Abstract
RATIONALE Epidemiological studies that focus on the relationship between dietary isoflavone intake and the risk of breast cancer still lead to inconsistent conclusions. Herein, we conducted a meta-analysis of the latest studies to explore this issue. METHOD We performed a systematic search using Web of Science, PubMed, and Embase from inception to August 2021. The robust error meta-regression (REMR) model and generalized least squares trend (GLST) model were used to establish dose-response relationships between isoflavones and breast cancer risk. RESULTS Seven cohort studies and 17 case-control studies were included in the meta-analysis, and the summary OR for breast cancer was 0.71 (95% CI 0.72-0.81) when comparing the highest to the lowest isoflavone intake. A subgroup analysis further showed that neither menopausal status nor ER status has a significant influence on the association between isoflavone intake and breast cancer risk, while the isoflavone intake doses and study design does. When the isoflavones exposure was less than 10 mg/day, no effects on breast cancer risk were detected. The inverse association was significant in the case-control studies but not in the cohort studies. In the dose-response meta-analysis of the cohort studies, we observed an inverse association between isoflavone intake and breast cancer: a 10 mg/day increase in isoflavone intake was related to reductions of 6.8% (OR = 0.932, 95% CI 0.90-0.96) and 3.2% (OR = 0.968, 95% CI 0.94-0.99) in breast cancer risk when using REMR and GLST, respectively. In the dose-response meta-analysis of the case-control studies, the inverse association for every 10 mg/day isoflavone intake was associated with breast cancer risk reductions by 11.7%. CONCLUSION present evidence demonstrated that taking in dietary isoflavone is helpful in reducing the breast cancer risk.
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Affiliation(s)
- Jining Yang
- Research Center for Nutrition and Food Safety, Institute of Military Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Hui Shen
- Research Center for Nutrition and Food Safety, Institute of Military Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Mantian Mi
- Chongqing Medical Nutrition Research Center, Chongqing 400038, China
| | - Yu Qin
- Research Center for Nutrition and Food Safety, Institute of Military Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing 400038, China
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Tse TJ, Guo Y, Shim YY, Purdy SK, Kim JH, Cho JY, Alcorn J, Reaney MJT. Availability of bioactive flax lignan from foods and supplements. Crit Rev Food Sci Nutr 2022; 63:9843-9858. [PMID: 35532015 DOI: 10.1080/10408398.2022.2072807] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Hyperlipidemia, high levels of blood lipids including cholesterol and triglycerides, is a major risk factor for cardiovascular disease. Traditional treatments of hyperlipidemia often include lifestyle changes and pharmacotherapy. Recently, flaxseed has been approved as a nutrient that lowers blood lipids. Several metabolites of flaxseed lignan secoisolariciresinol diglucoside (SDG), have been identified that reduce blood lipids. SDG is present in flaxseed hull as an ester-linked copolymer with 3-hydroxy-3-methylglutaric acid (HMGA). However, purification processes involved in hydrolysis of the copolymer and enriching SDG are often expensive. The natural copolymer of SDG with HMGA (SDG polymer) is a source of bioactive compounds useful in prophylaxis of hypercholesterolemia. After consumption of the lignan copolymer, SDG and HMGA are released in the stomach and small intestines. SDG is metabolized to secoisolariciresinol, enterolactone and enterodiol, the bioactive forms of mammalian lignans. These metabolites are then distributed throughout the body where they accumulate in the liver, kidney, skin, other tissues, and organs. Successively, these metabolites reduce blood lipids including cholesterol, triglycerides, low density lipoprotein cholesterol, and lipid peroxidation products. In this review, the metabolism and efficacies of flaxseed-derived enriched SDG and SDG polymer will be discussed.
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Affiliation(s)
- Timothy J Tse
- Department of Plant Sciences, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Yajia Guo
- College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Youn Young Shim
- Department of Plant Sciences, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
- Prairie Tide Diversified Inc., Saskatoon, Saskatchewan, Canada
- Department of Integrative Biotechnology, Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University, Suwon, Korea
| | - Sarah K Purdy
- Department of Plant Sciences, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Ji Hye Kim
- Department of Integrative Biotechnology, Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University, Suwon, Korea
| | - Jae Youl Cho
- Department of Integrative Biotechnology, Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University, Suwon, Korea
| | - Jane Alcorn
- College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Martin J T Reaney
- Department of Plant Sciences, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
- Prairie Tide Diversified Inc., Saskatoon, Saskatchewan, Canada
- Guangdong Saskatchewan Oilseed Joint Laboratory, Department of Food Science and Engineering, Jinan University, Guangdong, China
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Maharjan CK, Mo J, Wang L, Kim MC, Wang S, Borcherding N, Vikas P, Zhang W. Natural and Synthetic Estrogens in Chronic Inflammation and Breast Cancer. Cancers (Basel) 2021; 14:cancers14010206. [PMID: 35008370 PMCID: PMC8744660 DOI: 10.3390/cancers14010206] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 12/17/2021] [Accepted: 12/19/2021] [Indexed: 12/17/2022] Open
Abstract
The oncogenic role of estrogen receptor (ER) signaling in breast cancer has long been established. Interaction of estrogen with estrogen receptor (ER) in the nucleus activates genomic pathways of estrogen signaling. In contrast, estrogen interaction with the cell membrane-bound G-protein-coupled estrogen receptor (GPER) activates the rapid receptor-mediated signaling transduction cascades. Aberrant estrogen signaling enhances mammary epithelial cell proliferation, survival, and angiogenesis, hence is an important step towards breast cancer initiation and progression. Meanwhile, a growing number of studies also provide evidence for estrogen's pro- or anti-inflammatory roles. As other articles in this issue cover classic ER and GPER signaling mediated by estrogen, this review will discuss the crucial mechanisms by which estrogen signaling influences chronic inflammation and how that is involved in breast cancer. Xenoestrogens acquired from plant diet or exposure to industrial products constantly interact with and alter innate estrogen signaling at various levels. As such, they can modulate chronic inflammation and breast cancer development. Natural xenoestrogens generally have anti-inflammatory properties, which is consistent with their chemoprotective role in breast cancer. In contrast, synthetic xenoestrogens are proinflammatory and carcinogenic compounds that can increase the risk of breast cancer. This article also highlights important xenoestrogens with a particular focus on their role in inflammation and breast cancer. Improved understanding of the complex relationship between estrogens, inflammation, and breast cancer will guide clinical research on agents that could advance breast cancer prevention and therapy.
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Affiliation(s)
- Chandra K. Maharjan
- Department of Pathology, Immunology and Laboratory Medicine, University of Florida, Gainesville, FL 32610, USA; (C.K.M.); (J.M.); (L.W.); (M.-C.K.)
| | - Jiao Mo
- Department of Pathology, Immunology and Laboratory Medicine, University of Florida, Gainesville, FL 32610, USA; (C.K.M.); (J.M.); (L.W.); (M.-C.K.)
| | - Lei Wang
- Department of Pathology, Immunology and Laboratory Medicine, University of Florida, Gainesville, FL 32610, USA; (C.K.M.); (J.M.); (L.W.); (M.-C.K.)
| | - Myung-Chul Kim
- Department of Pathology, Immunology and Laboratory Medicine, University of Florida, Gainesville, FL 32610, USA; (C.K.M.); (J.M.); (L.W.); (M.-C.K.)
| | - Sameul Wang
- Canyonoak Consulting LLC, San Diego, CA 92127, USA;
| | - Nicholas Borcherding
- Department of Pathology and Immunology, School of Medicine, Washington University, St. Louis, MO 63110, USA;
| | - Praveen Vikas
- Department of Internal Medicine, Carver College of Medicine, Iowa City, IA 52242, USA;
| | - Weizhou Zhang
- Department of Pathology, Immunology and Laboratory Medicine, University of Florida, Gainesville, FL 32610, USA; (C.K.M.); (J.M.); (L.W.); (M.-C.K.)
- Mechanism of Oncogenesis Program, University of Florida Health Cancer Center, University of Florida, Gainesville, FL 32610, USA
- Correspondence: to: ; Tel.: +1-352-273-6748
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Bartiromo L, Schimberni M, Villanacci R, Ottolina J, Dolci C, Salmeri N, Viganò P, Candiani M. Endometriosis and Phytoestrogens: Friends or Foes? A Systematic Review. Nutrients 2021; 13:2532. [PMID: 34444692 PMCID: PMC8398277 DOI: 10.3390/nu13082532] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 07/21/2021] [Accepted: 07/23/2021] [Indexed: 12/17/2022] Open
Abstract
The aim of this systematic review was to provide comprehensive and available data on the possible role of phytoestrogens (PE) for the treatment of endometriosis. We conducted an advanced, systematic search of online medical databases PubMed and Medline. Only full-length manuscripts written in English up to September 2020 were considered. A total of 60 studies were included in the systematic review. According to in vitro findings, 19 out of 22 studies reported the ability of PE in inducing anti-proliferative, anti-inflammatory and proapoptotic effects on cultured cells. Various mechanisms have been proposed to explain this in vitro action including the alteration of cell cycle proteins, the activation/inactivation of regulatory pathways, and modification of radical oxidative species levels. Thirty-eight articles on the effects of phytoestrogens on the development of endometriotic lesions in in vivo experimental animal models of endometriosis have been included. In line with in vitro findings, results also derived from animal models of endometriosis generally supported a beneficial effect of the compounds in reducing lesion growth and development. Finally, only seven studies investigated the effects of phytoestrogens intake on endometriosis in humans. The huge amount of in vitro and in vivo animal findings did not correspond to a consistent literature in the women affected. Therefore, whether the experimental findings can be translated in women is currently unknown.
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Affiliation(s)
- Ludovica Bartiromo
- Gynecology/Obstetrics Unit, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy; (L.B.); (M.S.); (R.V.); (J.O.); (C.D.); (N.S.); (M.C.)
| | - Matteo Schimberni
- Gynecology/Obstetrics Unit, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy; (L.B.); (M.S.); (R.V.); (J.O.); (C.D.); (N.S.); (M.C.)
| | - Roberta Villanacci
- Gynecology/Obstetrics Unit, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy; (L.B.); (M.S.); (R.V.); (J.O.); (C.D.); (N.S.); (M.C.)
| | - Jessica Ottolina
- Gynecology/Obstetrics Unit, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy; (L.B.); (M.S.); (R.V.); (J.O.); (C.D.); (N.S.); (M.C.)
| | - Carolina Dolci
- Gynecology/Obstetrics Unit, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy; (L.B.); (M.S.); (R.V.); (J.O.); (C.D.); (N.S.); (M.C.)
| | - Noemi Salmeri
- Gynecology/Obstetrics Unit, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy; (L.B.); (M.S.); (R.V.); (J.O.); (C.D.); (N.S.); (M.C.)
| | - Paola Viganò
- Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
| | - Massimo Candiani
- Gynecology/Obstetrics Unit, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy; (L.B.); (M.S.); (R.V.); (J.O.); (C.D.); (N.S.); (M.C.)
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10
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Torrens-Mas M, Roca P. Phytoestrogens for Cancer Prevention and Treatment. BIOLOGY 2020; 9:E427. [PMID: 33261116 PMCID: PMC7759898 DOI: 10.3390/biology9120427] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 11/21/2020] [Accepted: 11/25/2020] [Indexed: 12/17/2022]
Abstract
Phytoestrogens are a large group of natural compounds found in more than 300 plants. They have a close structural similarity to estrogens, which allow them to bind to both estrogen receptors (ER), ERα and ERβ, presenting a weak estrogenic activity. Phytoestrogens have been described as antioxidant, anti-inflammatory, anti-thrombotic, anti-allergic, and anti-tumoral agents. Their role in cancer prevention has been well documented, although their impact on treatment efficiency is controversial. Several reports suggest that phytoestrogens may interfere with the effect of anti-cancer drugs through the regulation of oxidative stress and other mechanisms. Furthermore, some phytoestrogens could exert a protective effect on healthy cells, thus reducing the secondary effects of cancer treatment. In this review, we have studied the recent research in this area to find evidence for the role of phytoestrogens in cancer prevention and therapy efficacy.
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Affiliation(s)
- Margalida Torrens-Mas
- Grupo Multidisciplinar de Oncología Traslacional, Institut Universitari d’Investigació en Ciències de la Salut, Universitat de les Illes Balears, 07122 Palma, Spain;
- Instituto de Investigación Sanitaria Illes Balears, 07010 Palma, Spain
| | - Pilar Roca
- Grupo Multidisciplinar de Oncología Traslacional, Institut Universitari d’Investigació en Ciències de la Salut, Universitat de les Illes Balears, 07122 Palma, Spain;
- Instituto de Investigación Sanitaria Illes Balears, 07010 Palma, Spain
- Ciber Fisiopatología Obesidad y Nutrición (CB06/03), Instituto Salud Carlos III, 28029 Madrid, Spain
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11
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McGrowder DA, Miller FG, Nwokocha CR, Anderson MS, Wilson-Clarke C, Vaz K, Anderson-Jackson L, Brown J. Medicinal Herbs Used in Traditional Management of Breast Cancer: Mechanisms of Action. MEDICINES (BASEL, SWITZERLAND) 2020; 7:E47. [PMID: 32823812 PMCID: PMC7460502 DOI: 10.3390/medicines7080047] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 07/29/2020] [Accepted: 08/09/2020] [Indexed: 02/06/2023]
Abstract
Background: Breast cancer is one of the principal causes of death among women and there is a pressing need to develop novel and effective anti-cancer agents. Natural plant products have shown promising results as anti-cancer agents. Their effectiveness is reported as decreased toxicity in usage, along with safety and less recurrent resistances compared with hormonal targeting anti-cancer agents. Methods: A literature search was conducted for all English-language literature published prior to June 2020. The search was conducted using electronic databases, including PubMed, Embase, Web of Science, and Cochrane Library. The search strategy included keywords such as breast cancer, herbs, anti-cancer biologically active components, clinical research, chemotherapy drugs amongst others. Results: The literature provides documented evidence of the chemo-preventative and chemotherapeutic properties of Ginseng, garlic (Allium sativum), Black cohosh (Actaea racemose), Tumeric (Curcuma longa), Camellia sinenis (green tea), Echinacea, Arctium (burdock), Flaxseed (Linum usitatissimum) and Black Cumin (Nigella sativa). Conclusions: The nine herbs displayed anti-cancer properties and their outcomes and mechanisms of action include inhibition of cell proliferation, angiogenesis and apoptosis as well as modulation of key intracellular pathways. However, more clinical trials and cohort human studies should be conducted to provide key evidence of their medical benefits.
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Affiliation(s)
- Donovan A. McGrowder
- Department of Pathology, Faculty of Medical Sciences, The University of the West Indies, Kingston 7, Jamaica; (K.V.); (L.A.-J.); (J.B.)
| | - Fabian G. Miller
- Department of Physical Education, Faculty of Education, The Mico University College, 1A Marescaux Road, Kingston 5, Jamaica;
- Department of Biotechnology, Faculty of Science and Technology, The University of the West Indies, Kingston 7, Jamaica
| | - Chukwuemeka R. Nwokocha
- Department of Basic Medical Sciences, Faculty of Medical Sciences, The University of the West Indies, Kingston 7, Jamaica; (C.R.N.); (C.W.-C.)
| | - Melisa S. Anderson
- School of Allied Health and Wellness, College of Health Sciences, University of Technology, Kingston 7, Jamaica;
| | - Cameil Wilson-Clarke
- Department of Basic Medical Sciences, Faculty of Medical Sciences, The University of the West Indies, Kingston 7, Jamaica; (C.R.N.); (C.W.-C.)
| | - Kurt Vaz
- Department of Pathology, Faculty of Medical Sciences, The University of the West Indies, Kingston 7, Jamaica; (K.V.); (L.A.-J.); (J.B.)
| | - Lennox Anderson-Jackson
- Department of Pathology, Faculty of Medical Sciences, The University of the West Indies, Kingston 7, Jamaica; (K.V.); (L.A.-J.); (J.B.)
| | - Jabari Brown
- Department of Pathology, Faculty of Medical Sciences, The University of the West Indies, Kingston 7, Jamaica; (K.V.); (L.A.-J.); (J.B.)
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12
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Fabian CJ, Khan SA, Garber JE, Dooley WC, Yee LD, Klemp JR, Nydegger JL, Powers KR, Kreutzjans AL, Zalles CM, Metheny T, Phillips TA, Hu J, Koestler DC, Chalise P, Yellapu NK, Jernigan C, Petroff BK, Hursting SD, Kimler BF. Randomized Phase IIB Trial of the Lignan Secoisolariciresinol Diglucoside in Premenopausal Women at Increased Risk for Development of Breast Cancer. Cancer Prev Res (Phila) 2020; 13:623-634. [PMID: 32312713 PMCID: PMC7335358 DOI: 10.1158/1940-6207.capr-20-0050] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 03/11/2020] [Accepted: 04/15/2020] [Indexed: 02/05/2023]
Abstract
We conducted a multiinstitutional, placebo-controlled phase IIB trial of the lignan secoisolariciresinol diglucoside (SDG) found in flaxseed. Benign breast tissue was acquired by random periareolar fine needle aspiration (RPFNA) from premenopausal women at increased risk for breast cancer. Those with hyperplasia and ≥2% Ki-67 positive cells were eligible for randomization 2:1 to 50 mg SDG/day (Brevail) versus placebo for 12 months with repeat bio-specimen acquisition. The primary endpoint was difference in change in Ki-67 between randomization groups. A total of 180 women were randomized, with 152 ultimately evaluable for the primary endpoint. Median baseline Ki-67 was 4.1% with no difference between arms. Median Ki-67 change was -1.8% in the SDG arm (P = 0.001) and -1.2% for placebo (P = 0.034); with no significant difference between arms. As menstrual cycle phase affects proliferation, secondary analysis was performed for 117 women who by progesterone levels were in the same phase of the menstrual cycle at baseline and off-study tissue sampling. The significant Ki-67 decrease persisted for SDG (median = -2.2%; P = 0.002) but not placebo (median = -1.0%). qRT-PCR was performed on 77 pairs of tissue specimens. Twenty-two had significant ERα gene expression changes (<0.5 or >2.0) with 7 of 10 increases in placebo and 10 of 12 decreases for SDG (P = 0.028), and a difference between arms (P = 0.017). Adverse event incidence was similar in both groups, with no evidence that 50 mg/day SDG is harmful. Although the proliferation biomarker analysis showed no difference between the treatment group and the placebo, the trial demonstrated use of SDG is tolerable and safe.
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Affiliation(s)
- Carol J Fabian
- Department of Internal Medicine, University of Kansas Medical Center, Kansas City, Kansas
| | | | | | - William C Dooley
- University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | | | - Jennifer R Klemp
- Department of Internal Medicine, University of Kansas Medical Center, Kansas City, Kansas
| | - Jennifer L Nydegger
- Department of Internal Medicine, University of Kansas Medical Center, Kansas City, Kansas
| | - Kandy R Powers
- Department of Internal Medicine, University of Kansas Medical Center, Kansas City, Kansas
| | - Amy L Kreutzjans
- Department of Internal Medicine, University of Kansas Medical Center, Kansas City, Kansas
| | - Carola M Zalles
- Department of Pathology, Boca Raton Hospital, Boca Raton, Florida
| | - Trina Metheny
- Department of Internal Medicine, University of Kansas Medical Center, Kansas City, Kansas
| | - Teresa A Phillips
- Department of Internal Medicine, University of Kansas Medical Center, Kansas City, Kansas
| | - Jinxiang Hu
- Department of Biostatistics & Data Science, University of Kansas Medical Center, Kansas City, Kansas
| | - Devin C Koestler
- Department of Biostatistics & Data Science, University of Kansas Medical Center, Kansas City, Kansas
| | - Prabhakar Chalise
- Department of Biostatistics & Data Science, University of Kansas Medical Center, Kansas City, Kansas
| | - Nanda Kumar Yellapu
- Department of Biostatistics & Data Science, University of Kansas Medical Center, Kansas City, Kansas
| | - Cheryl Jernigan
- University of Kansas Cancer Center, University of Kansas Medical Center, Kansas City, Kansas
| | - Brian K Petroff
- Veterinary Diagnostic Laboratory, Michigan State University, Lansing, Michigan
| | - Stephen D Hursting
- Department of Nutrition, University of North Carolina, Chapel Hill, North Carolina
| | - Bruce F Kimler
- Department of Radiation Oncology, University of Kansas Medical Center, Kansas City, Kansas.
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13
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Chang VC, Cotterchio M, Bondy SJ, Kotsopoulos J. Iron intake, oxidative stress‐related genes and breast cancer risk. Int J Cancer 2020; 147:1354-1373. [DOI: 10.1002/ijc.32906] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 12/21/2019] [Accepted: 01/20/2020] [Indexed: 01/05/2023]
Affiliation(s)
- Vicky C. Chang
- Dalla Lana School of Public Health University of Toronto Toronto ON Canada
- Prevention and Cancer Control Cancer Care Ontario, Ontario Health Toronto ON Canada
| | - Michelle Cotterchio
- Dalla Lana School of Public Health University of Toronto Toronto ON Canada
- Prevention and Cancer Control Cancer Care Ontario, Ontario Health Toronto ON Canada
| | - Susan J. Bondy
- Dalla Lana School of Public Health University of Toronto Toronto ON Canada
| | - Joanne Kotsopoulos
- Dalla Lana School of Public Health University of Toronto Toronto ON Canada
- Women's College Research Institute, Women's College Hospital Toronto ON Canada
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14
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Eslami-S Z, Majidzadeh-A K, Halvaei S, Babapirali F, Esmaeili R. Microbiome and Breast Cancer: New Role for an Ancient Population. Front Oncol 2020; 10:120. [PMID: 32117767 PMCID: PMC7028701 DOI: 10.3389/fonc.2020.00120] [Citation(s) in RCA: 90] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Accepted: 01/22/2020] [Indexed: 12/11/2022] Open
Abstract
There are many risk factors associated with breast cancer (BC) such as the familial history of BC, using hormone replacement therapy, obesity, personal habits, and other clinical factors; however, not all BC cases are attributed to these risk factors. Recent researches show a correlation between patient microbiome and BC suggested as a new risk factor. The present review article aimed at evaluating the role of the microbiome as a risk factor in the occurrence of BC, investigating the proposed mechanisms of interaction between the microbiome and human genes involved in BC, and assessing the impact of the altered composition of breast, gut, and milk microbiome in the physiological status of normal breast as well as cancerous or non-cancerous breast lesions. The study also evaluated the growing evidence that these altered populations may hinder chemotherapeutic treatment. The role of microbiome in the development and maintenance of inflammation, estrogen metabolism, and epigenetic alterations was properly investigated. Finally, clinical and therapeutic applications of the microbiome- e.g., probiotics, microbiome genome modulation, and engineered microbiome enzymes in the management of BC were reviewed.
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Affiliation(s)
- Zahra Eslami-S
- Genetics Department, Breast Cancer Research Center, Motamed Cancer Institute, ACECR, Tehran, Iran.,Laboratory of Rare Human Circulating Cells (LCCRH), University Medical Centre of Montpellier, Montpellier, France
| | - Keivan Majidzadeh-A
- Genetics Department, Breast Cancer Research Center, Motamed Cancer Institute, ACECR, Tehran, Iran
| | - Sina Halvaei
- Genetics Department, Breast Cancer Research Center, Motamed Cancer Institute, ACECR, Tehran, Iran
| | - Fatemeh Babapirali
- Genetics Department, Breast Cancer Research Center, Motamed Cancer Institute, ACECR, Tehran, Iran.,University of Science and Culture, Basic Science and Advanced Technologies in Biology, Tehran, Iran
| | - Rezvan Esmaeili
- Genetics Department, Breast Cancer Research Center, Motamed Cancer Institute, ACECR, Tehran, Iran
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15
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Jiang Y, Chen X, Fu S. Advances in the Correlation between Intestinal Microbiota and Breast Cancer Development. ACTA ACUST UNITED AC 2020. [DOI: 10.4236/jct.2020.1112066] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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16
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Untapped "-omics": the microbial metagenome, estrobolome, and their influence on the development of breast cancer and response to treatment. Breast Cancer Res Treat 2019; 179:287-300. [PMID: 31646389 DOI: 10.1007/s10549-019-05472-w] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 10/10/2019] [Indexed: 02/07/2023]
Abstract
With the advent of next generation sequencing technologies, there is an increasingly complex understanding of the role of gastrointestinal and local breast microbial dysbiosis in breast cancer. In this review, we summarize the current understanding of the microbiome's role in breast carcinogenesis, discussing modifiable risk factors that may affect breast cancer risk by inducing dysbiosis as well as recent sequencing data illustrating breast cancer subtype-specific differences in local breast tissue microbiota. We outline how the 'estrobolome,' the aggregate of estrogen-metabolizing enteric bacterial genes, may affect the risk of developing postmenopausal estrogen receptor-positive breast cancer. We also discuss the microbiome's potent capacity for anticancer therapy activation and deactivation, an important attribute of the gastrointestinal microbiome that has yet to be harnessed clinically.
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17
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Rodríguez-García C, Sánchez-Quesada C, Toledo E, Delgado-Rodríguez M, Gaforio JJ. Naturally Lignan-Rich Foods: A Dietary Tool for Health Promotion? Molecules 2019; 24:E917. [PMID: 30845651 PMCID: PMC6429205 DOI: 10.3390/molecules24050917] [Citation(s) in RCA: 159] [Impact Index Per Article: 31.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 02/21/2019] [Accepted: 03/04/2019] [Indexed: 12/12/2022] Open
Abstract
Dietary guidelines universally advise adherence to plant-based diets. Plant-based foods confer considerable health benefits, partly attributable to their abundant micronutrient (e.g., polyphenol) content. Interest in polyphenols is largely focused on the contribution of their antioxidant activity to the prevention of various disorders, including cardiovascular disease and cancer. Polyphenols are classified into groups, such as stilbenes, flavonoids, phenolic acids, lignans and others. Lignans, which possess a steroid-like chemical structure and are defined as phytoestrogens, are of particular interest to researchers. Traditionally, health benefits attributed to lignans have included a lowered risk of heart disease, menopausal symptoms, osteoporosis and breast cancer. However, the intake of naturally lignan-rich foods varies with the type of diet. Consequently, based on the latest humans' findings and gathered information on lignan-rich foods collected from Phenol Explorer database this review focuses on the potential health benefits attributable to the consumption of different diets containing naturally lignan-rich foods. Current evidence highlight the bioactive properties of lignans as human health-promoting molecules. Thus, dietary intake of lignan-rich foods could be a useful way to bolster the prevention of chronic illness, such as certain types of cancers and cardiovascular disease.
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Affiliation(s)
- Carmen Rodríguez-García
- Center for Advanced Studies in Olive Grove and Olive Oils, University of Jaen, Campus las Lagunillas s/n, 23071 Jaén, Spain.
- Department of Health Sciences, Faculty of Experimental Sciences, University of Jaén, 23071 Jaén, Spain.
| | - Cristina Sánchez-Quesada
- Center for Advanced Studies in Olive Grove and Olive Oils, University of Jaen, Campus las Lagunillas s/n, 23071 Jaén, Spain.
- Department of Health Sciences, Faculty of Experimental Sciences, University of Jaén, 23071 Jaén, Spain.
- Agri-food Campus of International Excellence (ceiA3), 14071 Córdoba, Spain.
| | - Estefanía Toledo
- Department of Preventive Medicine and Public Health, University of Navarra, 31008 Pamplona, Spain.
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBERObn), Instituto de Salud Carlos III, 28029 Madrid, Spain.
- IdiSNA, Navarra Institute for Health Research, 31008 Pamplona, Spain.
| | - Miguel Delgado-Rodríguez
- Center for Advanced Studies in Olive Grove and Olive Oils, University of Jaen, Campus las Lagunillas s/n, 23071 Jaén, Spain.
- Department of Health Sciences, Faculty of Experimental Sciences, University of Jaén, 23071 Jaén, Spain.
- CIBER Epidemiología y Salud Pública (CIBER-ESP), Instituto de Salud Carlos III, 28029 Madrid, Spain.
| | - José J Gaforio
- Center for Advanced Studies in Olive Grove and Olive Oils, University of Jaen, Campus las Lagunillas s/n, 23071 Jaén, Spain.
- Department of Health Sciences, Faculty of Experimental Sciences, University of Jaén, 23071 Jaén, Spain.
- Agri-food Campus of International Excellence (ceiA3), 14071 Córdoba, Spain.
- CIBER Epidemiología y Salud Pública (CIBER-ESP), Instituto de Salud Carlos III, 28029 Madrid, Spain.
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18
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Boucher BA, Wanigaratne S, Harris SA, Cotterchio M. Postdiagnosis Isoflavone and Lignan Intake in Newly Diagnosed Breast Cancer Patients: Cross-Sectional Survey Shows Considerable Intake from Previously Unassessed High-Lignan Foods. Curr Dev Nutr 2018; 2:nzx009. [PMID: 30377679 PMCID: PMC6201681 DOI: 10.3945/cdn.117.002063] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 11/16/2017] [Accepted: 12/18/2017] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Isoflavones and lignans (phytoestrogens) are dietary components with potential anticarcinogenic effects. Although the intake of isoflavones and lignans may affect breast cancer treatment and prognosis-and associations may differ by menopausal status-postdiagnosis intake data are limited. OBJECTIVE We aimed to describe postdiagnosis isoflavone and lignan intake in newly diagnosed breast cancer patients, examine differences by menopausal status and phytoestrogen type, and inform the assessment of diet and survival in future prognostic studies. METHODS Our cross-sectional study included 278 women aged 25-74 y, diagnosed with pathologically confirmed breast cancer in April-May 2010 and identified using the Ontario Cancer Registry. Intake in the previous 2 mo was assessed using questionnaires listing 17 soy and 3 high-lignan foods (flaxseed, flaxseed bread, sesame seeds), completed 71 d after breast cancer diagnosis, on average. Food consumption by menopausal status was examined. Geometric mean and median phytoestrogen intakes were estimated among all patients and in consumers only; differences by menopausal status and phytoestrogen type were assessed. RESULTS Among all patients, foods were similarly consumed by menopausal status and isoflavone intakes were low (median: 56 µg/d). Consumers (n = 219) had higher intakes (median isoflavones: 1808 µg/d); 7% of isoflavone and 21% of lignan consumers had intakes ≥10 mg/d. Intakes were higher in premenopausal than in postmenopausal consumers, particularly for lignans, but were not significantly different (median lignans: 4375 compared with 1863 µg/d; P = 0.07). Lignans were significantly higher than isoflavones among most consumers (postmenopausal means: 746 compared with 100 µg/d; P < 0.0001). CONCLUSIONS Postdiagnosis lignan intakes from 3 high-content foods may be considerable among newly diagnosed breast cancer patients, yet they have been unassessed in previous prognostic studies. The inclusion of these foods in dietary assessment methods may improve future intake estimates and the distributions on which breast cancer survival analyses are based.
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Affiliation(s)
- Beatrice A Boucher
- Prevention and Cancer Control, Cancer Care Ontario, Toronto, ON, Canada
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Susitha Wanigaratne
- Centre for Urban Health Solutions, St Michael's Hospital, Toronto, ON, Canada
| | - Shelley A Harris
- Prevention and Cancer Control, Cancer Care Ontario, Toronto, ON, Canada
- Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada
| | - Michelle Cotterchio
- Prevention and Cancer Control, Cancer Care Ontario, Toronto, ON, Canada
- Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada
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19
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Calado A, Neves PM, Santos T, Ravasco P. The Effect of Flaxseed in Breast Cancer: A Literature Review. Front Nutr 2018; 5:4. [PMID: 29468163 PMCID: PMC5808339 DOI: 10.3389/fnut.2018.00004] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2017] [Accepted: 01/16/2018] [Indexed: 12/15/2022] Open
Abstract
Breast cancer is one of the most common cancers and the second most responsible for cancer mortality worldwide. In 2014, in Portugal approximately 27,200 people died of cancer, of which 1,791 were women with breast cancer. Flaxseed has been one of the most studied foods, regarding possible relations to breast cancer, though mainly in experimental studies in animals, yet in few clinical trials. It is rich in omega-3 fatty acids, α-linolenic acid, lignan, and fibers. One of the main components of flaxseed is the lignans, of which 95% are made of the predominant secoisolariciresinol diglucoside (SDG). SDG is converted into enterolactone and enterodiol, both with antiestrogen activity and structurally similar to estrogen; they can bind to cell receptors, decreasing cell growth. Some studies have shown that the intake of omega-3 fatty acids is related to the reduction of breast cancer risk. In animal studies, α-linolenic acids have been shown to be able to suppress growth, size, and proliferation of cancer cells and also to promote breast cancer cell death. Other animal studies found that the intake of flaxseed combined with tamoxifen can reduce tumor size to a greater extent than taking tamoxifen alone. Additionally, some clinical trials showed that flaxseed can have an important role in decreasing breast cancer risk, mainly in postmenopausal women. Further studies are needed, specifically clinical trials that may demonstrate the potential benefits of flaxseed in breast cancer.
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Affiliation(s)
- Ana Calado
- Instituto de Ciências da Saúde, Universidade Católica Portuguesa, Lisbon, Portugal
| | - Pedro Miguel Neves
- Faculdade de Medicina da Universidade de Lisboa, Hospital Universitário de Santa Maria and Centro de Investigação Interdisciplinar em Saúde da Universidade Católica Portuguesa, Lisbon, Portugal
| | - Teresa Santos
- Faculdade de Motricidade Humana (FMH) (Projecto Aventura Social-Social Adventure Team), Universidade de Lisboa, Lisbon, Portugal.,Instituto de Saúde Ambiental (ISAMB), Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal.,William James Center for Research, ISPA--Instituto Universitário, Lisbon, Portugal
| | - Paula Ravasco
- Faculdade de Medicina da Universidade de Lisboa, Hospital Universitário de Santa Maria and Centro de Investigação Interdisciplinar em Saúde da Universidade Católica Portuguesa, Lisbon, Portugal
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20
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Čukelj N, Novotni D, Sarajlija H, Drakula S, Voučko B, Ćurić D. Flaxseed and multigrain mixtures in the development of functional biscuits. Lebensm Wiss Technol 2017. [DOI: 10.1016/j.lwt.2017.07.048] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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21
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Sak K. Intake of Individual Flavonoids and Risk of Carcinogenesis: Overview of Epidemiological Evidence. Nutr Cancer 2017; 69:1119-1150. [PMID: 29083244 DOI: 10.1080/01635581.2017.1367934] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Several epidemiological findings have demonstrated that specific flavonoids can be responsible for reduction of the risk of certain cancer types. However, these results are still rather limited, inconclusive and controversial. Therefore, in this comprehensive review article the findings reported to date about the associations between dietary intake of individual flavonoid compounds and cancer incidence are compiled and analyzed. Also, the possible reasons for inconsistencies are brought forth and discussed. As diet is a potentially modifiable factor in our behavioral choices, further large-scale prospective studies with longer follow-up times, different populations, various doses and exposure timing as well as diverse well-controlled confounders are highly needed to confirm or disprove the current epidemiological knowledge about the role of flavonoids on cancer risk. Regarding the promising data to date, more research on bioavailability, metabolism and biological action mechanisms of these plant secondary metabolites is also encouraged.
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Affiliation(s)
- Katrin Sak
- a NGO Praeventio , Näituse 22-3, Tartu , Estonia
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22
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Sak K. Epidemiological Evidences on Dietary Flavonoids and Breast Cancer Risk: A Narrative Review. Asian Pac J Cancer Prev 2017; 18:2309-2328. [PMID: 28950673 PMCID: PMC5720631 DOI: 10.22034/apjcp.2017.18.9.2309] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Epidemiological studies on associations between intake of flavonoids and breast cancer risk are highly needed to assess the actual effects of flavonoids in humans. Experimental investigations in vitro conditions cannot detect and model the real action of these phytochemicals due to the limitations to consider absorption and metabolic biotransformation as well as several complex interactions. Therefore, the data about association findings between intake of flavonoids and breast cancer risk are compiled and analyzed in the current review by evaluating both the results obtained using food composition databases as well as different biomarkers. Although several case-control studies demonstrate some reduction in breast cancer risk related to high consumption of flavones and flavonols, large-scale prospective cohort studies with follow-up times of many years do not confirm these findings. Intake of isoflavones can be associated with a decrease in breast tumorigenesis only in Asian countries where the consumption of soy foods is high but not among Western women with significantly lower ingestion amounts, suggesting the presence of so-called threshold level of effect. Besides doses, the timing of exposure to isoflavones seems also to be a significant factor as childhood and prepubertal age can be critical periods. Although women may need to consume high amounts of isoflavones typical to Asian diets to gain beneficial effects and protection against mammary carcinogenesis, it is still too early to give any specific recommendations to prevent breast tumors by diet rich in certain flavonoids.
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Affiliation(s)
- Katrin Sak
- NGO Praeventio, Näituse 22-3, Tartu 50407, Estonia.
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Wolff MS, Pajak A, Pinney SM, Windham GC, Galvez M, Rybak M, Silva MJ, Ye X, Calafat AM, Kushi LH, Biro FM, Teitelbaum SL. Associations of urinary phthalate and phenol biomarkers with menarche in a multiethnic cohort of young girls. Reprod Toxicol 2017; 67:56-64. [PMID: 27851993 PMCID: PMC5303175 DOI: 10.1016/j.reprotox.2016.11.009] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Revised: 10/23/2016] [Accepted: 11/09/2016] [Indexed: 12/22/2022]
Abstract
To study potential environmental influences on puberty in girls, we investigated urinary biomarkers in relation to age at menarche. Phenols and phthalates were measured at baseline (6-8 years of age). Menarche was ascertained over 11 years for 1051 girls with menarche and biomarkers. Hazards ratios were estimated from Cox models adjusted for race/ethnicity and caregiver education (aHR, 95% confidence intervals [CI] for 5th vs 1st quintile urinary biomarker concentrations). 2,5-Dichlorophenol was associated with earlier menarche (aHR 1.34 [1.06-1.71]); enterolactone was associated with later menarche (aHR 0.82 [0.66-1.03]), as was mono-3-carboxypropyl phthalate (MCPP) (aHR 0.73 [0.59-0.91]); the three p-trends were <0.05. Menarche differed by 4-7 months across this range. Enterolactone and MCPP associations were stronger in girls with below-median body mass index. These analytes were also associated with age at breast development in this cohort. Findings from this prospective study suggest that some childhood exposures are associated with pubertal timing.
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Affiliation(s)
- Mary S Wolff
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, 1 Gustave L. Levy Place Box 1057, New York, NY 10029, USA.
| | - Ashley Pajak
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, 1 Gustave L. Levy Place Box 1057, New York, NY 10029, USA.
| | - Susan M Pinney
- Department of Environmental Health, Kettering Building, Room 208, University of Cincinnati College of Medicine, 3223 Eden Avenue, Cincinnati, OH 45267-0056, USA.
| | - Gayle C Windham
- Division of Environmental and Occupational Disease Control, California Department of Public Health, 850 Marina Bay Pkwy, Bldg P, Richmond, CA 94804, USA.
| | - Maida Galvez
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, 1 Gustave L. Levy Place Box 1057, New York, NY 10029, USA.
| | - Michael Rybak
- Centers for Disease Control and Prevention, 4770 Buford Hwy, MS-F17, Atlanta, GA 30341, USA.
| | - Manori J Silva
- Centers for Disease Control and Prevention, 4770 Buford Hwy, MS-F17, Atlanta, GA 30341, USA.
| | - Xiaoyun Ye
- Centers for Disease Control and Prevention, 4770 Buford Hwy, MS-F17, Atlanta, GA 30341, USA.
| | - Antonia M Calafat
- Centers for Disease Control and Prevention, 4770 Buford Hwy, MS-F17, Atlanta, GA 30341, USA.
| | - Lawrence H Kushi
- Division of Research, Kaiser Permanente, 2000 Broadway, Oakland, CA 94612, USA.
| | - Frank M Biro
- Division of Adolescent Medicine, Cincinnati Children's Hospital Medical Center, 3333 Burnet Avenue (ML-4000), Cincinnati, OH 45229-3029, USA.
| | - Susan L Teitelbaum
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, 1 Gustave L. Levy Place Box 1057, New York, NY 10029, USA.
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López-Biedma A, Sánchez-Quesada C, Delgado-Rodríguez M, Gaforio JJ. The biological activities of natural lignans from olives and virgin olive oils: A review. J Funct Foods 2016. [DOI: 10.1016/j.jff.2016.07.005] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Frankenfeld CL. Cardiometabolic risk and gut microbial phytoestrogen metabolite phenotypes. Mol Nutr Food Res 2016; 61. [DOI: 10.1002/mnfr.201500900] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Revised: 06/18/2016] [Accepted: 07/14/2016] [Indexed: 12/18/2022]
Affiliation(s)
- Cara L. Frankenfeld
- Department of Global and Community Health; George Mason University; Fairfax VA USA
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Ali I, Hurmerinta T, Nurmi T, Berglund M, Rüegg J, Poutanen M, Halldin K, Mäkelä S, Damdimopoulou P. From pure compounds to complex exposure: Effects of dietary cadmium and lignans on estrogen, epidermal growth factor receptor, and mitogen activated protein kinase signaling in vivo. Toxicol Lett 2016; 253:27-35. [DOI: 10.1016/j.toxlet.2016.04.020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Revised: 04/15/2016] [Accepted: 04/20/2016] [Indexed: 12/12/2022]
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Makarem N, Nicholson JM, Bandera EV, McKeown NM, Parekh N. Consumption of whole grains and cereal fiber in relation to cancer risk: a systematic review of longitudinal studies. Nutr Rev 2016; 74:353-73. [PMID: 27257283 DOI: 10.1093/nutrit/nuw003] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Accepted: 11/03/2015] [Indexed: 02/07/2023] Open
Abstract
CONTEXT Evidence from previous reviews is supportive of the hypothesis that whole grains may protect against various cancers. However, the reviews did not report risk estimates for both whole grains and cereal fiber and only case-control studies were evaluated. It is unclear whether longitudinal studies support this conclusion. OBJECTIVE To evaluate associations between whole grains and cereal fiber in relation to risk of lifestyle-related cancers data from longitudinal studies was evaluated. DATA SOURCES The following 3 databases were systematically searched: PubMed, EMBASE, and Cochrane CENTRAL. STUDY SELECTION A total of 43 longitudinal studies conducted in Europe and North America that reported multivariable-adjusted risk estimates for whole grains (n = 14), cereal fiber (n = 23), or both (n = 6) in relation to lifestyle-related cancers were included. DATA EXTRACTION Information on study location, cohort name, follow-up duration, sample characteristics, dietary assessment method, risk estimates, and confounders was extracted. DATA SYNTHESIS Of 20 studies examining whole grains and cancer, 6 studies reported a statistically significant 6%-47% reduction in risk, but 14 studies showed no association. Of 29 studies examining cereal fiber intake in relation to cancer, 8 showed a statistically significant 6%-49% reduction in risk, whereas 21 studies reported no association. CONCLUSIONS This systematic review concludes that most studies were suggestive of a null association. Whole grains and cereal fiber may protect against gastrointestinal cancers, but these findings require confirmation in additional studies.
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Affiliation(s)
- Nour Makarem
- N. Makarem is with the Department of Nutrition, Food Studies and Public Health, New York University, New York, New York, USA. J.M. Nicholson is with the Department of Medical Library, New York University School of Medicine, New York, New York, USA. E.V. Bandera is with the Rutgers School of Public Health, Rutgers-The State University of New Jersey, and the Rutgers Cancer Institute of New Jersey, New Brunswick, New Jersey, USA. N.M. McKeown is with the Jean Mayer USDA Human Nutrition Research Center on Aging and Friedman School of Nutrition Science and Policy, Tufts University, Boston, Massachusetts, USA. N. Parekh is with the College of Global Public Health, Department of Nutrition, Food Studies and Public Health, and Department of Population Health, New York University, New York, New York, USA
| | - Joseph M Nicholson
- N. Makarem is with the Department of Nutrition, Food Studies and Public Health, New York University, New York, New York, USA. J.M. Nicholson is with the Department of Medical Library, New York University School of Medicine, New York, New York, USA. E.V. Bandera is with the Rutgers School of Public Health, Rutgers-The State University of New Jersey, and the Rutgers Cancer Institute of New Jersey, New Brunswick, New Jersey, USA. N.M. McKeown is with the Jean Mayer USDA Human Nutrition Research Center on Aging and Friedman School of Nutrition Science and Policy, Tufts University, Boston, Massachusetts, USA. N. Parekh is with the College of Global Public Health, Department of Nutrition, Food Studies and Public Health, and Department of Population Health, New York University, New York, New York, USA
| | - Elisa V Bandera
- N. Makarem is with the Department of Nutrition, Food Studies and Public Health, New York University, New York, New York, USA. J.M. Nicholson is with the Department of Medical Library, New York University School of Medicine, New York, New York, USA. E.V. Bandera is with the Rutgers School of Public Health, Rutgers-The State University of New Jersey, and the Rutgers Cancer Institute of New Jersey, New Brunswick, New Jersey, USA. N.M. McKeown is with the Jean Mayer USDA Human Nutrition Research Center on Aging and Friedman School of Nutrition Science and Policy, Tufts University, Boston, Massachusetts, USA. N. Parekh is with the College of Global Public Health, Department of Nutrition, Food Studies and Public Health, and Department of Population Health, New York University, New York, New York, USA
| | - Nicola M McKeown
- N. Makarem is with the Department of Nutrition, Food Studies and Public Health, New York University, New York, New York, USA. J.M. Nicholson is with the Department of Medical Library, New York University School of Medicine, New York, New York, USA. E.V. Bandera is with the Rutgers School of Public Health, Rutgers-The State University of New Jersey, and the Rutgers Cancer Institute of New Jersey, New Brunswick, New Jersey, USA. N.M. McKeown is with the Jean Mayer USDA Human Nutrition Research Center on Aging and Friedman School of Nutrition Science and Policy, Tufts University, Boston, Massachusetts, USA. N. Parekh is with the College of Global Public Health, Department of Nutrition, Food Studies and Public Health, and Department of Population Health, New York University, New York, New York, USA
| | - Niyati Parekh
- N. Makarem is with the Department of Nutrition, Food Studies and Public Health, New York University, New York, New York, USA. J.M. Nicholson is with the Department of Medical Library, New York University School of Medicine, New York, New York, USA. E.V. Bandera is with the Rutgers School of Public Health, Rutgers-The State University of New Jersey, and the Rutgers Cancer Institute of New Jersey, New Brunswick, New Jersey, USA. N.M. McKeown is with the Jean Mayer USDA Human Nutrition Research Center on Aging and Friedman School of Nutrition Science and Policy, Tufts University, Boston, Massachusetts, USA. N. Parekh is with the College of Global Public Health, Department of Nutrition, Food Studies and Public Health, and Department of Population Health, New York University, New York, New York, USA
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Johnson KA, Vemuri S, Alsahafi S, Castillo R, Cheriyath V. Glycone-rich Soy Isoflavone Extracts Promote Estrogen Receptor Positive Breast Cancer Cell Growth. Nutr Cancer 2016; 68:622-33. [PMID: 27043076 DOI: 10.1080/01635581.2016.1154578] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Due to the association of hormone replacement therapy (HRT) with breast cancer risk, estrogenically active soy isoflavones are considered as an HRT alternative to alleviate menopausal symptoms. However, several recent reports challenged the health benefits of soy isoflavones and associated them with breast cancer promotion. While glyconic isoflavones are the major constituents of soybean seeds, due to their low cell permeability, they are considered to be biologically inactive. The glyconic isoflavones may exert their effects on membrane-bound estrogen receptors or could be converted to aglycones by extracellular β-glucosidases. Therefore, we hypothesized that despite their low cell permeability, soybean cultivars with high glyconic isoflavones may promote breast cancer cell growth. To test this, composition and estrogenic activity of isoflavones from 54 commercial soybean cultivars were determined. Soybean seeds produced in identical climate and growth conditions were used to minimize the effects of extraneous factors on isoflavone profile and concentrations. The glyconic daidzin concentration negatively correlated with genistin and with other aglycones. Relative to control, isoflavone extracts from 51 cultivars were estrogenic and promoted the growth of estrogen receptor positive (ER+) breast cancer cell line MCF-7 from 1.14 to 4.59 folds and other three cultivars slightly reduced the growth. Among these, extracts from three cultivars were highly estrogenic and promoted MCF-7 cell growth by 2.59-4.64 folds (P<0.005). Among six isoflavones, daidzin was positively associated with MCF-7 cell growth (P<0.005, r = 0.13966), whereas the negative correlation between genistin and MCF-7 cell growth was nearly significant (P≤0.0562, r = -0.026141). Furthermore, in drug interaction studies daidzin-rich isoflavone extracts antagonized tamoxifen, an ER inhibitor. Taken together, our results suggest that the glyconic daidzin-rich soy isoflavone extracts may exert estrogenic effects and promote ER+ breast cancer growth.
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Affiliation(s)
- Kailee A Johnson
- a Department of Biological and Environmental Sciences , Texas A&M University-Commerce , Commerce , Texas , USA
| | - Sravan Vemuri
- a Department of Biological and Environmental Sciences , Texas A&M University-Commerce , Commerce , Texas , USA
| | - Sameerh Alsahafi
- a Department of Biological and Environmental Sciences , Texas A&M University-Commerce , Commerce , Texas , USA
| | - Rudy Castillo
- a Department of Biological and Environmental Sciences , Texas A&M University-Commerce , Commerce , Texas , USA
| | - Venugopalan Cheriyath
- a Department of Biological and Environmental Sciences , Texas A&M University-Commerce , Commerce , Texas , USA
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Alipour S, Afshar S, Moini A, Dastjerdi MV, Saberi A, Bayani L, Eslami B, Hosseini L. Clinical and ultrasonographic changes of the breast after use of soy isoflavones. Asian Pac J Cancer Prev 2016; 13:6093-5. [PMID: 23464410 DOI: 10.7314/apjcp.2012.13.12.6093] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Phytoestrogens may be an alternative therapy in control of menopausal symptoms but their definite effects on breast tissue must be determined. Our study aimed to define the clinical and ultrasonographic changes of the breast after use of soy isoflavones in menopausal women. MATERIALS AND METHODS Menopausal women with hot flashes were randomly grouped as cases and controls and cases received soy isoflavones for 12 weeks. Breast examination (BE) and ultrasonography (US) were done at 0, 6 and 12 weeks. Tenderness and nodularity on BE were graded 1-4 by breast surgeons. RESULTS There were 30 women in the case and 26 in the control group. The mean age was 51.3 years and the mean age of menopause was 49.2 years. There was no change in the BE and US at 6 weeks in controls. In the case group, 10% had grade 1 tenderness and 13.3% grade 2 tenderness and grade 1 nodularity in BE accompanied with diffuse small cysts in US. At 12 weeks, there was no change in BE and US in the 2 groups. CONCLUSIONS There was no statistically significant difference in the BE of the 2 groups at 6 and 12 weeks (p value=0.36 and 0.41 for nodularity and tenderness respectively) and in the US results. Although the literature contains many facts concerning PEs and the breast, further prospective studies are needed to identify structural breast changes produced by PEs in order to identify the appropriate dosage and indications of use.
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Affiliation(s)
- Sadaf Alipour
- Surgery Department, Arash Women's Hospital, Tehran University of Medical Sciences, Tehran, Iran.
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Nie Q, Xing M, Hu J, Hu X, Nie S, Xie M. Metabolism and health effects of phyto-estrogens. Crit Rev Food Sci Nutr 2015; 57:2432-2454. [DOI: 10.1080/10408398.2015.1077194] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Qixing Nie
- State Key Laboratory of Food Science and Technology, Nanchang University Nanchang, CN, Nanchang, China
| | - Mengmeng Xing
- State Key Laboratory of Food Science and Technology, Nanchang University Nanchang, CN, Nanchang, China
| | - Jielun Hu
- State Key Laboratory of Food Science and Technology, Nanchang University Nanchang, CN, Nanchang, China
| | - Xiaojuan Hu
- State Key Laboratory of Food Science and Technology, Nanchang University Nanchang, CN, Nanchang, China
| | - Shaoping Nie
- State Key Laboratory of Food Science and Technology, Nanchang University Nanchang, CN, Nanchang, China
| | - Mingyong Xie
- State Key Laboratory of Food Science and Technology, Nanchang University Nanchang, CN, Nanchang, China
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McGlynn N, Kirsh VA, Cotterchio M, Harris MA, Nadalin V, Kreiger N. Shift Work and Obesity among Canadian Women: A Cross-Sectional Study Using a Novel Exposure Assessment Tool. PLoS One 2015; 10:e0137561. [PMID: 26376050 PMCID: PMC4573513 DOI: 10.1371/journal.pone.0137561] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Accepted: 08/17/2015] [Indexed: 11/18/2022] Open
Abstract
Background/Objectives It has been suggested that the association between shift work and chronic disease is mediated by an increase in obesity. However, investigations of the relationship between shift work and obesity reveal mixed findings. Using a recently developed exposure assessment tool, this study examined the association between shift work and obesity among Canadian women from two studies: a cohort of university alumni, and a population-based study. Methods Self-administered questionnaire data were used from healthy, currently employed females in a population-based study, the Ontario Women’s Diet and Health case-control study (n = 1611 controls), and from a subset of a of university alumni from the Canadian Study of Diet, Lifestyle, and Health (n = 1097) cohort study. Overweight was defined as BMI≥25 to <30, and obesity as BMI≥30. Reported occupation was converted to occupational codes and linked to a probability of shift work value derived from Survey of Labour and Income Dynamics data. Regular evenings, nights, or rotating work comprised shift work. Polytomous logistic regression estimated the association between probability of shift work, categorized as near nil, low, medium, and high probability of shift work, on overweight and obesity, controlling for detected confounders. Results In the population-based sample, high probability of shift work was associated with obesity (reference = near nil probability of shift work, OR: 1.88, 95% CI: 1.01–3.51, p = 0.047). In the alumni cohort, no significant association was detected between shift work and overweight or obesity. Conclusions As these analyses found a positive association between high probability of shift work exposure and obesity in a population-based sample, but not in an alumni cohort, it is suggested that the relationship between shift work and obesity is complex, and may be particularly susceptible to occupational and education-related factors within a given population.
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Affiliation(s)
- Natalie McGlynn
- Surveillance and Epidemiology Unit, Performance and Standards, Toronto Public Health, Toronto, Ontario, Canada
- * E-mail:
| | - Victoria A. Kirsh
- Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
| | - Michelle Cotterchio
- Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
- Prevention and Cancer Control, Cancer Care Ontario, Toronto, Ontario, Canada
| | - M. Anne Harris
- School of Occupational and Public Health, Ryerson University, Toronto, Ontario, Canada
| | - Victoria Nadalin
- Prevention and Cancer Control, Cancer Care Ontario, Toronto, Ontario, Canada
| | - Nancy Kreiger
- Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
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Dietary lignan intake and androgen receptor expression in breast tumors. Cancer Causes Control 2014; 26:311-317. [PMID: 25471060 DOI: 10.1007/s10552-014-0504-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2014] [Accepted: 11/27/2014] [Indexed: 10/24/2022]
Abstract
PURPOSE Lignans, a class of phytoestrogen commonly found in the Western diet, have been linked to decreased breast cancer risks in epidemiologic studies. Similar to estrogen receptors, the androgen receptor (AR), a prognostic factor in breast tumors, may be affected by lignans. However, few studies have investigated this link in the context of breast cancer etiology. We evaluated the relationship between dietary lignan intake and AR expression in incident breast tumors. METHODS Tumor tissue, epidemiological, and clinical data were collected from 216 women with incident, primary, histologically confirmed breast cancer enrolled in the Roswell Park Cancer Institute (RPCI) Data Bank and BioRepository (DBBR). On average, three tumor cores from each participant were assembled into a tissue micro array. After immunohistochemical staining, a trained RPCI pathologist determined AR status of each core. Lignan intake was calculated from a food frequency questionnaire collected upon enrollment into the DBBR. RESULTS We observed a weak positive association between dietary lignans and AR expression [β (SE) 27.6 (17.0), p 0.10], and there was no significant difference in lignan intake across categories of AR expression (p = 0.09, R (2) = 0.35). CONCLUSION Our results do not support a clear relationship between dietary lignan intake and AR expression. This investigation is the first, to our knowledge, to examine dietary lignan intake and AR expression in breast tumors. Further research is needed within a larger, more representative sample to determine whether lignan intake is truly associated with AR expression.
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Albini A, Rosano C, Angelini G, Amaro A, Esposito AI, Maramotti S, Noonan DM, Pfeffer U. Exogenous hormonal regulation in breast cancer cells by phytoestrogens and endocrine disruptors. Curr Med Chem 2014; 21:458-500. [PMID: 24304271 PMCID: PMC4153070 DOI: 10.2174/09298673113206660291] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2013] [Revised: 08/19/2013] [Accepted: 10/04/2013] [Indexed: 01/25/2023]
Abstract
Observations on the role of ovarian hormones in breast cancer growth, as well as interest in contraception, stimulated research into the biology of estrogens. The identification of the classical receptors ERα and ERβ and the transmembrane receptor GPER and the resolution of the structure of the ligand bound to its receptor established the principal molecular mechanisms of estrogen action. The presence of estrogen-like compounds in many plants used in traditional medicine or ingested as food ingredients, phytoestrogens, as well as the estrogenic activities of many industrial pollutants and pesticides, xenoestrogens, have prompted investigations into their role in human health. Phyto- and xenoestrogens bind to the estrogen receptors with a lower affinity than the endogenous estrogens and can compete or substitute the hormone. Xenoestrogens, which accumulate in the body throughout life, are believed to increase breast cancer risk, especially in cases of prenatal and prepuberal exposure whereas the role of phytoestrogens is still a matter of debate. At present, the application of phytoestrogens appears to be limited to the treatment of post-menopausal symptoms in women where the production of endogenous estrogens has ceased. In this review we discuss chemistry, structure and classification, estrogen signaling and the consequences of the interactions of estrogens, phytoestrogens and xenoestrogens with their receptors, the complex interactions of endogenous and exogenous ligands, the evaluation of the health risks related to xenoestrogens, and the perspectives toward the synthesis of potent third generation selective estrogen receptor modulators (SERMs).
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Affiliation(s)
| | | | | | | | | | | | | | - U Pfeffer
- Universita degli Studi dell'Insubria, Facolta di Medicina e Chirurgia, Dipartimento di Biotecnologie e Scienze della Vita, Viale Dunant, n.3 Varese, Italy, 21100.
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Cotterchio M, Mirea L, Ozcelik H, Kreiger N. Active cigarette smoking, variants in carcinogen metabolism genes and breast cancer risk among pre- and postmenopausal women in Ontario, Canada. Breast J 2014; 20:468-80. [PMID: 25052559 DOI: 10.1111/tbj.12304] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Cigarette smoking is strongly associated with various diseases including many cancers; however, evidence regarding breast cancer risk remains inconclusive with some studies reporting no association, and others an increased risk with long duration and early initiation of smoking. Genetic variation in carcinogen-metabolizing enzymes may modify these associations. Breast cancer cases were identified from the Ontario Cancer Registry (OCR) during 2003-2004 and population controls through random digit dialing methods. All subjects completed self-administered questionnaires. Subsequently, saliva samples were obtained from cases (N = 1,776) and controls (N = 1,839) for deoxyribonucleic acid (DNA) extraction. Multivariate logistic regression was used to estimate odds ratio (OR) and 95% confidence intervals (CI) for active smoking variables, and interactions were assessed between smoking and 36 carcinogen-metabolizing candidate gene variants. No statistically significant association was found between active smoking and breast cancer risk among all women nor when stratified by menopausal status; however, nonsignificant increased premenopausal breast cancer risk was observed among current smokers and women smoking before first pregnancy. Several statistically significant interactions were observed between smoking and genetic variants (CYP1A2 1548C>T, CYP1A1 3801T>C, CYP1B1 4326G>C, NAT1 c.-85-1014T>A, UGT1A7 W208R 622T>C, SOD2 c.47T>C, GSTT1 deletion). However, in analyses stratified by these genotypes, smoking ORs had wide confidence intervals (and with few exceptions included 1.0) making interpretations difficult. Active smoking was not associated with breast cancer risk, although several significant interactions were observed between smoking, carcinogen-metabolizing genetic variants, and breast cancer risk.
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Affiliation(s)
- Michelle Cotterchio
- Prevention and Cancer Control, Cancer Care Ontario, Toronto, Ontario, Canada; Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
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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]
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Liu Y, Colditz GA, Cotterchio M, Boucher BA, Kreiger N. Adolescent dietary fiber, vegetable fat, vegetable protein, and nut intakes and breast cancer risk. Breast Cancer Res Treat 2014. [PMID: 24737167 DOI: 10.1007/s10549‐014‐2953‐3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The importance of early-life exposures in breast cancer development is increasingly recognized. However, limited research has evaluated the relationship between adolescent diet and subsequent risk of breast cancer and reported inconsistent results. This population-based case-control study investigated the associations of dietary fiber, vegetable protein, vegetable fat, and nuts consumed during adolescence with adult breast cancer risk. Women, ages 25-74 years, who were diagnosed with first primary breast cancer between 2002 and 2003, were identified using the Ontario Cancer Registry. Controls were identified through random-digit dialing and age-frequency matched to cases. Diet at ages 10-15 was assessed with a 55-item food frequency questionnaire among 2,865 cases and 3,299 controls. Logistic regression was performed to estimate odds ratios (ORs) and 95 % confidence intervals (CIs). Inverse associations were found between intakes of dietary fiber, vegetable protein, vegetable fat, and nuts during adolescence and breast cancer risk, which persisted after controlling for adult intakes. The ORs (95 % CI) for the highest versus the lowest quintile of intake were 0.66 (0.55-0.78; P trend < 0.0001) for fiber, 0.80 (0.68-0.95; P trend = 0.01) for vegetable protein, 0.74 (0.63-0.87; P trend = 0.002) for vegetable fat, and 0.76 (0.61-0.95 for ≥1 serving/day vs. <1 serving/month intake; P trend = 0.04) for nuts. The reduced risk for adolescent intakes of fiber, vegetable protein, and nuts was largely limited to postmenopausal women (P interaction ≤ 0.05). Dietary fiber, vegetable protein, vegetable fat, and nuts consumed during adolescence were associated with reduced breast cancer risk.
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Affiliation(s)
- Ying Liu
- Division of Public Health Sciences, Department of Surgery, Washington University School of Medicine, 660 S. Euclid Ave, Campus Box 8100, St. Louis, MO, 63110, USA
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Adolescent dietary fiber, vegetable fat, vegetable protein, and nut intakes and breast cancer risk. Breast Cancer Res Treat 2014; 145:461-70. [PMID: 24737167 DOI: 10.1007/s10549-014-2953-3] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Accepted: 04/03/2014] [Indexed: 10/25/2022]
Abstract
The importance of early-life exposures in breast cancer development is increasingly recognized. However, limited research has evaluated the relationship between adolescent diet and subsequent risk of breast cancer and reported inconsistent results. This population-based case-control study investigated the associations of dietary fiber, vegetable protein, vegetable fat, and nuts consumed during adolescence with adult breast cancer risk. Women, ages 25-74 years, who were diagnosed with first primary breast cancer between 2002 and 2003, were identified using the Ontario Cancer Registry. Controls were identified through random-digit dialing and age-frequency matched to cases. Diet at ages 10-15 was assessed with a 55-item food frequency questionnaire among 2,865 cases and 3,299 controls. Logistic regression was performed to estimate odds ratios (ORs) and 95 % confidence intervals (CIs). Inverse associations were found between intakes of dietary fiber, vegetable protein, vegetable fat, and nuts during adolescence and breast cancer risk, which persisted after controlling for adult intakes. The ORs (95 % CI) for the highest versus the lowest quintile of intake were 0.66 (0.55-0.78; P trend < 0.0001) for fiber, 0.80 (0.68-0.95; P trend = 0.01) for vegetable protein, 0.74 (0.63-0.87; P trend = 0.002) for vegetable fat, and 0.76 (0.61-0.95 for ≥1 serving/day vs. <1 serving/month intake; P trend = 0.04) for nuts. The reduced risk for adolescent intakes of fiber, vegetable protein, and nuts was largely limited to postmenopausal women (P interaction ≤ 0.05). Dietary fiber, vegetable protein, vegetable fat, and nuts consumed during adolescence were associated with reduced breast cancer risk.
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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.
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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
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Shapira I, Sultan K, Lee A, Taioli E. Evolving concepts: how diet and the intestinal microbiome act as modulators of breast malignancy. ISRN ONCOLOGY 2013; 2013:693920. [PMID: 24187630 PMCID: PMC3800670 DOI: 10.1155/2013/693920] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Accepted: 08/25/2013] [Indexed: 02/07/2023]
Abstract
The intestinal microbiome plays an important role in human physiology. Next-generation sequencing technologies, knockout and gnotobiotic mouse models, fecal transplant data and epidemiologic studies have accelerated our understanding of microbiome abnormalities seen in immune diseases and malignancies. Dysbiosis is the disturbed microbiome ecology secondary to external pressures such as host diseases, medications, diet and genetic conditions often leading to abnormalities of the host immune system. Specifically dysbiosis has been shown to lower circulating lymphocytes, and increase neutrophil to lymphocyte ratio, a finding which has been associated with a decreased survival in women with breast cancers. Dysbiosis also plays a role in the recycling of estrogens via the entero-hepatic circulation, increasing estrogenic potency in the host, which is another leading cause of breast malignancy. Non-modifiable factors such as age and genetic mutations disrupt the microbiome, but modifiable factors such as diet may also lead to profound disruptions as well. A better understanding of dietary factors and how they disrupt the microbiome may lead to beneficial nutritional interventions for breast cancer patients.
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Affiliation(s)
- Iuliana Shapira
- Monter Cancer Center, Don Monti Division of Oncology and Division of Hematology, Hofstra North Shore Long Island Jewish School of Medicine, 450 Lakeville Road, Lake Success, NY 11042, USA
| | - Keith Sultan
- Hofstra North Shore Long Island Jewish School of Medicine, Division of Gastroenterology, Hepatology and Nutrition, North Shore University Hospital, 300 Community Drive, Manhasset, NY 11030, USA
| | - Annette Lee
- Feinstein Institute for Medical Research, Robert S. Boas Center for Genomics and Human Genetics and Elmezzi Graduate School of Molecular Medicine, Hofstra North Shore Long Island Jewish School of Medicine, 350 Community Drive, Manhasset, NY 11030, USA
| | - Emanuela Taioli
- Population Health-Hofstra North Shore-LIJ School of Medicine and North Shore/LIJ Health System, 175 Community Drive, Room 203, Great Neck, NY 11021, USA
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Flower G, Fritz H, Balneaves LG, Verma S, Skidmore B, Fernandes R, Kennedy D, Cooley K, Wong R, Sagar S, Fergusson D, Seely D. Flax and Breast Cancer. Integr Cancer Ther 2013; 13:181-92. [DOI: 10.1177/1534735413502076] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Background. Flax is a food and dietary supplement commonly used for menopausal symptoms. Flax is known for its lignan, α-linolenic acid, and fiber content, components that may possess phytogestrogenic, anti-inflammatory, and hormone modulating effects, respectively. We conducted a systematic review of flax for efficacy in improving menopausal symptoms in women living 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 January 2013 for human interventional or observational data pertaining to flax and breast cancer. Results. Of 1892 records, we included a total of 10 studies: 2 randomized controlled trials, 2 uncontrolled trials, 1 biomarker study, and 5 observational studies. Nonsignificant (NS) decreases in hot flash symptomatology were seen with flax ingestion (7.5 g/d). Flax (25 g/d) increased tumor apoptotic index ( P < .05) and decreased HER2 expression ( P < .05) and cell proliferation (Ki-67 index; NS) among newly diagnosed breast cancer patients when compared with placebo. Uncontrolled and biomarker studies suggest beneficial effects on hot flashes, cell proliferation, atypical cytomorphology, and mammographic density, as well as possible anti-angiogenic activity at doses of 25 g ground flax or 50 mg secoisolariciresinol diglycoside daily. Observational data suggests associations between flax and decreased risk of primary breast cancer (adjusted odds ratio [AOR] = 0.82; 95% confidence interval [CI] = 0.69-0.97), better mental health (AOR = 1.76; 95% CI = 1.05-2.94), and lower mortality (multivariate hazard ratio = 0.69; 95% CI = 0.50-0.95) among breast cancer patients. Conclusions. Current evidence suggests that flax may be associated with decreased risk of breast cancer. Flax demonstrates antiproliferative effects in breast tissue of women at risk of breast cancer and may protect against primary breast cancer. Mortality risk may also be reduced among those living with breast cancer.
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Affiliation(s)
- Gillian Flower
- Canadian College of Naturopathic Medicine, Toronto, Ontario, Canada
- Ottawa Integrative Cancer Center, Ottawa, Ontario, Canada
| | - Heidi Fritz
- Canadian College of Naturopathic Medicine, Toronto, Ontario, Canada
| | - Lynda G. Balneaves
- University of British Columbia School of Nursing, Vancouver, British Columbia, Canada
- CAMEO Program, Vancouver, British Columbia, Canada
| | - Shailendra Verma
- Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
- Ottawa Regional Cancer Centre, Ottawa Hospital, Ontario, Canada
| | - Becky Skidmore
- Canadian College of Naturopathic Medicine, Toronto, Ontario, Canada
| | - Rochelle Fernandes
- Canadian College of Naturopathic Medicine, Toronto, Ontario, Canada
- The University of Toronto, Toronto, Ontario, Canada
| | - Deborah Kennedy
- Canadian College of Naturopathic Medicine, Toronto, Ontario, Canada
- The University of Toronto, Toronto, Ontario, Canada
| | - Kieran Cooley
- Canadian College of Naturopathic Medicine, Toronto, Ontario, Canada
- The University of Toronto, Toronto, Ontario, Canada
| | | | | | - Dean Fergusson
- Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Dugald Seely
- Canadian College of Naturopathic Medicine, Toronto, Ontario, Canada
- Ottawa Integrative Cancer Center, Ottawa, Ontario, Canada
- Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
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Filiberto AC, Mumford SL, Pollack AZ, Zhang C, Yeung EH, Schliep KC, Perkins NJ, Wactawski-Wende J, Schisterman EF. Usual dietary isoflavone intake and reproductive function across the menstrual cycle. Fertil Steril 2013; 100:1727-34. [PMID: 23998910 DOI: 10.1016/j.fertnstert.2013.08.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2013] [Revised: 08/02/2013] [Accepted: 08/02/2013] [Indexed: 11/25/2022]
Abstract
OBJECTIVE To assess the association of total isoflavone intake with ovulatory function, including sporadic anovulation in healthy premenopausal women. DESIGN Prospective cohort study. SETTING University. PATIENT(S) Participants included 259 healthy regularly menstruating women aged 18-44 years. INTERVENTION(S) None. MAIN OUTCOME MEASURE(S) Serum concentrations of E2, free E2, P, LH, FSH, and SHBG and sporadic anovulation in healthy premenopausal women. RESULT(S) Isoflavone intake was not associated with E2, free E2, P, LH, and FSH concentrations. Consumption in the highest quartile (Q4: 1.6-78.8 mg/d) was significantly associated with greater SHBG concentrations (β = 0.09; 95% confidence interval [CI] 0.02-0.16), compared with the first quartile (Q1: 0.0-0.3 mg/d). CONCLUSION(S) Isoflavone intake was not associated with sporadic anovulation (Q4 vs. Q1: odds ratio 0.87, 95% CI 0.32-1.66). Dietary isoflavone intake among young premenopausal women was not related to sex hormone concentrations or anovulation, but was associated with minimally increased SHBG concentrations. These results suggest potential endocrine effects with no subsequent effects on ovulation, easing concerns regarding their impacts on fertility.
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Affiliation(s)
- Amanda C Filiberto
- Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Rockville, Maryland
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Lowcock EC, Cotterchio M, Anderson LN, Boucher BA, El-Sohemy A. High Coffee Intake, but Not Caffeine, is Associated with Reduced Estrogen Receptor Negative and Postmenopausal Breast Cancer Risk with No Effect Modification by CYP1A2 Genotype. Nutr Cancer 2013; 65:398-409. [DOI: 10.1080/01635581.2013.768348] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Pines A. Climacteric Commentaries. Climacteric 2013; 16:293-302. [DOI: 10.3109/13697137.2013.769834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Lowcock EC, Cotterchio M, Ahmad N. Association between allergies, asthma, and breast cancer risk among women in Ontario, Canada. Cancer Causes Control 2013; 24:1053-6. [PMID: 23443321 DOI: 10.1007/s10552-013-0177-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2012] [Accepted: 02/19/2013] [Indexed: 12/11/2022]
Abstract
PURPOSE To investigate the association between allergies, asthma, and breast cancer risk in a large, population-based case-control study. METHODS Breast cancer cases (n = 3,101) were identified using the Ontario Cancer Registry and population controls (n = 3,471) through random digit dialing. Self-reported histories of allergies, hay fever, and asthma were collected by questionnaire. Logistic regression was used to assess associations between breast cancer risk and history of allergy/hay fever and asthma, with 16 possible confounders examined. Analyses were stratified by menopausal status. RESULTS A history of allergies or hay fever was associated with a small reduction in breast cancer risk [age-adjusted odds ratio (AOR) = 0.86, 95 % confidence interval (CI) 0.77-0.96] and did not differ by menopausal status. Asthma was not associated with breast cancer risk overall; however, among premenopausal women, asthma was associated with a reduced risk of breast cancer (AOR = 0.72, 95 % CI 0.54-0.97). CONCLUSIONS A history of allergies may be associated with a modest reduction in breast cancer risk. Asthma does not appear to be associated with breast cancer risk overall; however, asthma may be associated with reduced breast cancer risk among premenopausal women.
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Affiliation(s)
- Elizabeth C Lowcock
- Prevention and Cancer Control, Cancer Care Ontario, 620 University Ave, Toronto, ON, M5G 2L7, Canada.
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Meija L, Söderholm P, Samaletdin A, Ignace G, Siksna I, Joffe R, Lejnieks A, Lietuvietis V, Krams I, Adlercreutz H. Dietary intake and major sources of plant lignans in Latvian men and women. Int J Food Sci Nutr 2013; 64:535-43. [PMID: 23373826 DOI: 10.3109/09637486.2013.765835] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Higher intake of lignans, diphenolic plant compounds, may reduce the risk of certain types of cancer and cardiovascular diseases. We assessed the dietary intake of four lignans: matairesinol, secoisolariciresinol, lariciresinol and pinoresinol. Furthermore, for the breads we supplemented the data with two more lignans: syringaresinol and medioresinol. Study subjects were 172 men and 97 women aged 40-75 years, residing in Riga, the capital of Latvia, all living at home, eating habitual food. Median total lignan intake was 2259 (range 1169-5759) μg/day. Secoisolariciresinol contributed 58% and syringaresinol 22% of lignan intake. Bread was the major food source of lignans in men (86%), whereas in women it was bread (57%) and flaxseed (35%).
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Affiliation(s)
- Laila Meija
- Department of Doctoral Studies, Riga Stradins University and Department of Food and Nutrition, Pauls Stradins Clinical University Hospital, Riga, Latvia.
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Consumption of flaxseed, a rich source of lignans, is associated with reduced breast cancer risk. Cancer Causes Control 2013; 24:813-6. [DOI: 10.1007/s10552-013-0155-7] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2012] [Accepted: 01/15/2013] [Indexed: 10/27/2022]
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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.
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Affiliation(s)
- A Höjer
- Swedish University of Agricultural Sciences, Department of Agricultural Research for Northern Sweden, SE-901 83 Umeå, Sweden.
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Dual association between polyphenol intake and breast cancer risk according to alcohol consumption level: a prospective cohort study. Breast Cancer Res Treat 2012; 137:225-36. [PMID: 23132534 DOI: 10.1007/s10549-012-2323-y] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2012] [Accepted: 10/26/2012] [Indexed: 12/31/2022]
Abstract
Studies of the association between polyphenols dietary intake and breast cancer risk have been limited due to the lack of detailed food composition tables. In addition, none has examined this association according to alcohol intake, despite the facts that alcohol is an established risk factor for breast cancer and that the contribution of alcoholic beverages to polyphenol intake varies according to the level of alcohol consumption. Our objectives were (1) to estimate the associations between breast cancer risk and a wide range of dietary polyphenols using the recently published Phenol-Explorer database; and (2) to evaluate if/how alcohol intake modulates these relationships. 4,141 women from the SU.VI.MAX prospective cohort were followed from 1994 to 2007 (median followup: 12.6 years); 152 developed a first incident invasive primary breast cancer. Dietary intakes were assessed by repeated 24-h records. The Phenol-Explorer database was used to estimate polyphenol intake. Multivariable Cox proportional hazards models were used to calculate hazard ratios (HRs) and 95 % confidence intervals (CIs) for quartiles of polyphenol intake. Analyses were stratified by median alcohol intake (< vs. ≥ 6.5 g/d). In non-to-low alcohol drinkers, intakes of some classes of polyphenols were associated with decreased breast cancer risk: hydroxybenzoic acids (HR(Q4vsQ1) = 0.38, 95 % CI: 0.17-0.86, P (trend) = 0.005), flavonoids (0.35, 0.17-0.75, P (trend) = 0.02), flavonols (0.36, 0.18-0.74, P (trend) = 0.002), catechins (0.48, 0.22-1.05, P (trend) = 0.02), theaflavins (0.42, 0.19-0.93, P (trend) = 0.02), and proanthocyanidins (0.39, 0.18-0.84, P (trend) = 0.02). In contrast, in women with higher alcohol use, intakes of hydroxybenzoic acids (2.28, 1.16-4.49, P (trend) = 0.04), flavonoids (2.46, 1.23-4.92, P (trend) = 0.01), anthocyanins (2.94, 1.32-6.53, P (trend) = 0.01), catechins (2.28, 1.19-4.36, P (trend) = 0.02), and proanthocyanidins (2.98, 1.40-6.33, P (trend) = 0.006) were associated with increased breast cancer risk. In conclusion, this prospective study suggests that several classes of polyphenols could potentially contribute to breast cancer prevention among non-to-low alcohol drinkers, but some may increase breast cancer risk among women with higher alcohol intake.
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Yang JJ, Cho LY, Ko KP, Ma SH, Shin A, Choi BY, Han DS, Song KS, Kim YS, Chang SH, Shin HR, Kang D, Yoo KY, Park SK. Interaction effects between genes involved in the AKT signaling pathway and phytoestrogens in gastric carcinogenesis: a nested case-control study from the Korean Multi-Center Cancer Cohort. Mol Nutr Food Res 2012; 56:1617-26. [PMID: 23042672 DOI: 10.1002/mnfr.201200169] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2012] [Revised: 07/09/2012] [Accepted: 08/09/2012] [Indexed: 12/27/2022]
Abstract
SCOPE To investigate whether genes involved in AKT/nuclear factor kappa B signaling and/or gene-environment interactions between the genes and phytoestrogens may be susceptible factors for gastric cancer. METHODS AND RESULTS The representative single nucleotide polymorphisms (SNPs) identified during the primary analysis (screening a total of 622 SNPs within ± 5 kbp of the 51 target gene locations) were further investigated in 317 matched case-control sets. The summary odds ratios (ORs) and 95% confidence intervals (CIs) for gastric cancer were calculated. Interaction effects between the SNPs and phytoestrogen biomarkers (genistein, daidzein, equol, and enterolactone) were computed. CDK1 rs4145643, FAS rs6586161, and FAS rs1468063 in the AKT signaling pathway presented significant genetic effects on gastric cancer (OR = 0.81 (95% CI: 0.66-0.99) for CDK1 rs4145643; OR = 1.27 (95% CI: 1.03-1.58) for FAS rs6586161; OR = 1.29 (95% CI: 1.03-1.56) for FAS rs1468063; Cochran Q statistics > 0.10). Risk alleles of FAS rs6586161, FAS rs1468063, MAP3K1 rs16886448, and MAP3K1 rs252902 showed significant interaction effects with enterolactone (p(interaction) < 0.05). CONCLUSION CDK1 and FAS genes involved in AKT signaling and influenced by anti-carcinogenic property of phytoestrogens can play a role as susceptible genetic factors in gastric carcinogenesis. FAS and MAP3K1 genes significantly interact with enterolactone, thereby modifying the individual's risk for gastric cancer.
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Affiliation(s)
- Jae Jeong Yang
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Korea
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Boucher BA, Cotterchio M, Anderson LN, Kreiger N, Kirsh VA, Thompson LU. Use of isoflavone supplements is associated with reduced postmenopausal breast cancer risk. Int J Cancer 2012; 132:1439-50. [DOI: 10.1002/ijc.27769] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2012] [Accepted: 07/23/2012] [Indexed: 11/11/2022]
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