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Suen AA, Kenan AC, Williams CJ. Developmental exposure to phytoestrogens found in soy: New findings and clinical implications. Biochem Pharmacol 2022; 195:114848. [PMID: 34801523 PMCID: PMC8712417 DOI: 10.1016/j.bcp.2021.114848] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 11/13/2021] [Accepted: 11/16/2021] [Indexed: 01/03/2023]
Abstract
Exposure to naturally derived estrogen receptor activators, such as the phytoestrogen genistein, can occur at physiologically relevant concentrations in the human diet. Soy-based infant formulas are of particular concern because infants consuming these products have serum genistein levels almost 20 times greater than those seen in vegetarian adults. Comparable exposures in animal studies have adverse physiologic effects. The timing of exposure is particularly concerning because infants undergo a steroid hormone-sensitive period termed "minipuberty" during which estrogenic chemical exposure may alter normal reproductive tissue patterning and function. The delay between genistein exposure and reproductive outcomes poses a unique challenge to collecting epidemiological data. In 2010, the U.S. National Toxicology Program monograph on the safety of the use of soy formula stated that the use of soy-based infant formula posed minimal concern and emphasized a lack of data from human subjects. Since then, several new human and animal studies have advanced our epidemiological and mechanistic understanding of the risks and benefits of phytoestrogen exposure. Here we aim to identify clinically relevant findings regarding phytoestrogen exposure and female reproductive outcomes from the past 10 years, with a focus on the phytoestrogen genistein, and explore the implications of these findings for soy infant formula recommendations. Research presented in this review will inform clinical practice and dietary recommendations for infants based on evidence from both clinical epidemiology and basic research advances in endocrinology and developmental biology from mechanistic in vitro and animal studies.
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Affiliation(s)
- Alisa A Suen
- Reproductive and Developmental Biology Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC, USA
| | - Anna C Kenan
- Reproductive and Developmental Biology Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC, USA
| | - Carmen J Williams
- Reproductive and Developmental Biology Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC, USA.
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Chulikhit Y, Sukhano W, Daodee S, Putalun W, Wongpradit R, Khamphukdee C, Umehara K, Noguchi H, Matsumoto K, Monthakantirat O. Effects of Pueraria candollei var mirifica (Airy Shaw and Suvat.) Niyomdham on Ovariectomy-Induced Cognitive Impairment and Oxidative Stress in the Mouse Brain. Molecules 2021; 26:molecules26113442. [PMID: 34198932 PMCID: PMC8201258 DOI: 10.3390/molecules26113442] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 05/29/2021] [Accepted: 06/02/2021] [Indexed: 11/16/2022] Open
Abstract
The effects of the phytoestrogen-enriched plant Pueraria mirifica (PM) extract on ovari-ectomy (OVX)-induced cognitive impairment and hippocampal oxidative stress in mice were investigated. Daily treatment with PM and 17β-estradiol (E2) significantly elevated cognitive behavior as evaluated by using the Y maze test, the novel object recognition test (NORT), and the Morris water maze test (MWM), attenuated atrophic changes in the uterus and decreased serum 17β-estradiol levels. The treatments significantly ameliorated ovariectomy-induced oxidative stress in the hippocampus and serum by a decrease in malondialdehyde (MDA), an enhancement of superoxide dismutase, and catalase activity, including significantly down-regulated expression of IL-1β, IL-6 and TNF-α proinflammatory cytokines, while up-regulating expression of PI3K. The present results suggest that PM extract suppresses oxidative brain damage and dysfunctions in the hippocampal antioxidant system, including the neuroinflammatory system in OVX animals, thereby preventing OVX-induced cognitive impairment. The present results indicate that PM exerts beneficial effects on cognitive deficits for which menopause/ovariectomy have been implicated as risk factors.
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Affiliation(s)
- Yaowared Chulikhit
- Division of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand; (Y.C.); (W.S.); (S.D.); (R.W.)
| | - Wichitsak Sukhano
- Division of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand; (Y.C.); (W.S.); (S.D.); (R.W.)
| | - Supawadee Daodee
- Division of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand; (Y.C.); (W.S.); (S.D.); (R.W.)
| | - Waraporn Putalun
- Division of Pharmacognosy and Toxicology, Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand; (W.P.); (C.K.)
| | - Rakvajee Wongpradit
- Division of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand; (Y.C.); (W.S.); (S.D.); (R.W.)
| | - Charinya Khamphukdee
- Division of Pharmacognosy and Toxicology, Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand; (W.P.); (C.K.)
| | - Kaoru Umehara
- Department of Pharmacognosy, School of Pharmaceutical Sciences, University of Shizuoka, Yada 52-1, Shi-zuoka-shi, Shizuoka 422-8526, Japan; (K.U.); (H.N.)
- Faculty of Pharmaceutical Sciences, Yokohama University of Pharmacy, Yokohama, Kanagawa 245-0066, Japan
| | - Hiroshi Noguchi
- Department of Pharmacognosy, School of Pharmaceutical Sciences, University of Shizuoka, Yada 52-1, Shi-zuoka-shi, Shizuoka 422-8526, Japan; (K.U.); (H.N.)
- Department of Pharmacognosy, Nihon Pharmaceutical University, Saitama 362-0806, Japan
| | - Kinzo Matsumoto
- Division of Medicinal Pharmacology, Institute of Natural Medicine, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan;
| | - Orawan Monthakantirat
- Division of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand; (Y.C.); (W.S.); (S.D.); (R.W.)
- Correspondence: ; Tel.: +66-4320-2305
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Chen LR, Chen KH. Utilization of Isoflavones in Soybeans for Women with Menopausal Syndrome: An Overview. Int J Mol Sci 2021; 22:3212. [PMID: 33809928 PMCID: PMC8004126 DOI: 10.3390/ijms22063212] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 03/19/2021] [Accepted: 03/20/2021] [Indexed: 12/23/2022] Open
Abstract
Based on their nutrient composition, soybeans and related foods have been considered to be nutritious and healthy for humans. Particularly, the biological activity and subsequent benefits of soy products may be associated with the presence of isoflavone in soybeans. As an alternative treatment for menopause-related symptoms, isoflavone has gained much popularity for postmenopausal women who have concerns related to undergoing hormone replacement therapy. However, current research has still not reached a consensus on the effects of isoflavone on humans. This overview is a summary of the current literature about the processing of soybeans and isoflavone types (daidzein, genistein, and S-equol) and supplements and their extraction and analysis as well as information about the utilization of isoflavones in soybeans. The processes of preparation (cleaning, drying, crushing and dehulling) and extraction of soybeans are implemented to produce refined soy oil, soy lecithin, free fatty acids, glycerol and soybean meal. The remaining components consist of inorganic constituents (minerals) and the minor components of biologically interesting small molecules. Regarding the preventive effects on diseases or cancers, a higher intake of isoflavones is associated with a moderately lower risk of developing coronary heart disease. It may also reduce the risks of breast and colorectal cancer as well as the incidence of breast cancer recurrence. Consumption of isoflavones or soy foods is associated with reduced risks of endometrial and bladder cancer. Regarding the therapeutic effects on menopausal syndrome or other diseases, isoflavones have been found to alleviate vasomotor syndromes even after considering placebo effects, reduce bone loss in the spine and ameliorate hypertension and in vitro glycemic control. They may also alleviate depressive symptoms during pregnancy. On the other hand, isoflavones have not shown definitive effects regarding improving cognition and urogenital symptoms. Because of lacking standardization in the study designs, such as the ingredients and doses of isoflavones and the durations and outcomes of trials, it currently remains difficult to draw overall conclusions for all aspects of isoflavones. These limitations warrant further investigations of isoflavone use for women's health.
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Affiliation(s)
- Li-Ru Chen
- Department of Physical Medicine and Rehabilitation, Mackay Memorial Hospital, Taipei 10049, Taiwan;
- Department of Mechanical Engineering, National YangMing ChiaoTung University, Hsinchu 30010, Taiwan
| | - Kuo-Hu Chen
- Department of Obstetrics and Gynecology, Taipei Tzu-Chi Hospital, The Buddhist Tzu-Chi Medical Foundation, Taipei 231, Taiwan
- School of Medicine, Tzu-Chi University, Hualien 970, Taiwan
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Abstract
Background The antioxidant and anti-inflammatory features of Formononetin, an isoflavone constituent extracted from traditional Chinese medicine, have been reported. The present study investigated that whether Formononetin plays a benefit on hyperoxic ALI. Methods C57BL/6 mice were exposed to hyperoxia for 72 h to produce experimental hyperoxic ALI model. Formononetin or vehicle was administrated intraperitoneally. Samples from the lung were collected at 72 h post hyperoxia exposure for further study. Pulmonary microvascular endothelial cells isolated from the lung of C57BL/6 mice were used for in vitro study. Results Formononetin pretreatment notably attenuated hyperoxia-induced elevating pulmonary water content, upregulation of proinflammatory cytokine levels and increasing infiltration of neutrophil in the lung. Western blot analyses showed that Formononetin enhanced the expression of nuclear factor erythroid-2-related factor 2 (Nrf2) which is a key transcription factor regulating the expression of heme oxygenase-1 (HO-1). Formononetin increased HO-1 expression and activity compared with vehicle-treated animals. Moreover, Formononetin reversed hyperoxia-caused the reduction of M2 macrophage polarization. However, pretreatment of a HO-1 inhibitor reduced the protective effect of Formononetin on hyperoxic ALI. Cell study showed that the Formononetin-induced upregulation of HO-1 was abolished when the Nrf2 was silenced. Conclusions Formononetin pretreatment reduces hyperoxia-induced ALI via Nrf2/HO-1-mediated antioxidant and anti-inflammatory effects.
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Affiliation(s)
- Yin Chen
- Department of Thoracic Surgery, Wuxi People’s Hospital, Nanjing Medical University, Wuxi, Jiangsu, China
- Department of Thoracic Surgery, Shanghai General Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Dong Wei
- Department of Thoracic Surgery, Wuxi People’s Hospital, Nanjing Medical University, Wuxi, Jiangsu, China
| | - Jin Zhao
- Department of Thoracic Surgery, Wuxi People’s Hospital, Nanjing Medical University, Wuxi, Jiangsu, China
| | - Xiangnan Xu
- Department of Thoracic Surgery, Shanghai General Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Jingyu Chen
- Department of Thoracic Surgery, Wuxi People’s Hospital, Nanjing Medical University, Wuxi, Jiangsu, China
- * E-mail:
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Wu GJ, Chen JT, Cherng YG, Chang CC, Liu SH, Chen RM. Genistein Improves Bone Healing via Triggering Estrogen Receptor Alpha-Mediated Expressions of Osteogenesis-Associated Genes and Consequent Maturation of Osteoblasts. J Agric Food Chem 2020; 68:10639-10650. [PMID: 32897066 DOI: 10.1021/acs.jafc.0c02830] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Osteoporosis-associated fractures may cause higher morbidity and mortality. Our previous study showed the effects of genistein, a phytoestrogen, on the induction of estrogen receptor alpha (ERα) gene expression and stimulation of osteoblast mineralization. In this study, rat calvarial osteoblasts and an animal bone defect model were used to investigate the effects of genistein on bone healing. Treatment with genistein caused a time-dependent increase in alkaline phosphatase (ALP) activity in rat osteoblasts. Levels of cytosolic and nuclear ERα significantly augmented following exposure to genistein. Subsequently, genistein elevated levels of ALP mRNA and protein in rat osteoblasts. Moreover, genistein induced other osteogenesis-associated osteocalcin and Runx2 mRNA and protein expressions. Knocking-down ERα using RNA interference concurrently inhibited genistein-induced Runx2, osteocalcin, and ALP mRNA expression. Attractively, administration of ICR mice suffering bone defects with genistein caused significant increases in the callus width, chondrocyte proliferation, and ALP synthesis. Results of microcomputed tomography revealed that administration of genistein increased trabecular bone numbers and improved the bone thickness and volume. This study showed that genistein can improve bone healing via triggering ERα-mediated osteogenesis-associated gene expressions and subsequent osteoblast maturation.
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Affiliation(s)
- Gong-Jhe Wu
- Department of Anesthesiology, Shin Kong Wu Ho-Su Memorial Hospital, Taipei, Taiwan
- Department of Anesthesiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
| | - Jui-Tai Chen
- Department of Anesthesiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
| | - Yih-Giun Cherng
- Department of Anesthesiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
| | - Chuen-Chau Chang
- Department of Anesthesiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
- Anesthesiology and Health Policy Research Center, Taipei Medical University, Taipei 11031, Taiwan
| | - Shing-Hwa Liu
- Institute of Toxicology, College of Medicine, National Taiwan University, Taipei 10051, Taiwan
| | - Ruei-Ming Chen
- Anesthesiology and Health Policy Research Center, Taipei Medical University, Taipei 11031, Taiwan
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
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Soleimanpour M, Tamaddon AM, Kadivar M, Abolmaali SS, Shekarchizadeh H. Fabrication of nanostructured mesoporous starch encapsulating soy-derived phytoestrogen (genistein) by well-tuned solvent exchange method. Int J Biol Macromol 2020; 159:1031-1047. [PMID: 32439450 DOI: 10.1016/j.ijbiomac.2020.05.124] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 05/15/2020] [Accepted: 05/15/2020] [Indexed: 11/21/2022]
Abstract
The present research was concerned with preparation of mesoporous starch (MPS) as a carrier for genistein, a model of poorly water-soluble phytoestrogen isoflavone; and exploration of the impact of different fabrication parameters on structural and loading properties. MPS is considered as a highly porous biomaterial which typically possesses nanometer-sized porous microstructure and low density, providing a large effective specific surface area (SSA) and hydrophilic surface to improve solubility, stability and bioavailability of poorly water-soluble active agents. To fabricate MPS, various concentrations (8-14% w/v) of starch from different sources (corn, potato and tapioca) was used for gel formation and the successive solvent exchange process was performed with use of various ethanol concentrations (40-70% v/v), which were then dried by different techniques (rotary vacuum evaporation, microwave and freeze drying). MPS quality attributes such as SSA, total porous volume, BJH pore diameter and swelling ratio were determined and effects of the fabrication parameters were investigated using L9-Taguchi orthogonal array design. The results indicate that second order polynomial regression models were well fitted for all response variables. Interestingly, the starch components greatly influenced physical properties of MPS. Also, the drying type and ethanol concentration altered significantly the model equations. The overall best fabrication condition (14% corn starch, 100% ethanol concentration in aging step and rotary vacuum drying) resulted in favorable MPS preparation with mean size of 105.4 nm and unimodal distribution. In the next step, genistein was encapsulated in MPS microstructure at different ratios, resulting in high loading capacity and efficiency (44.71% and 79.9%, respectively) at 1:1 weight ratio. Equilibrium adsorption isotherm of genistein was evaluated also by four different kinetics models including Langmuir, Freundlich, Dubinin-Radushkevich, and Temkin isotherms. The experimental data were found to be fitted well to the Langmuir model (R2 = 0.989). According to the electron microscopy and XRD analysis, the degree of genistein crystallinity lowered remarkably after the impregnation in to MPS, indicating improved solubility. In-vitro release profile of genistein from MPS in the simulated gastrointestinal buffer solutions (pH 1.2 and 6.8) demonstrated that incorporating genistein into the MPS enhanced the dissolution rate compared with genistein powder. Release kinetic data were fitted to the Higuchi model (R2 = 0.98), indicating diffusion-controlled release mechanism. Altogether, well-tuned MPS fabrication method can be utilized for an efficient encapsulation and dissolution enhancement of poorly soluble phytochemicals, such as genistein.
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Affiliation(s)
- Marjan Soleimanpour
- Department of Food Science and Technology, College of Agriculture, Isfahan University of Technology, Isfahan 84156-83111, Iran
| | - Ali Mohammad Tamaddon
- Department of Pharmaceutical Nanotechnology, School of Pharmacy and Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Mahdi Kadivar
- Department of Food Science and Technology, College of Agriculture, Isfahan University of Technology, Isfahan 84156-83111, Iran
| | - Samira Sadat Abolmaali
- Department of Pharmaceutical Nanotechnology, School of Pharmacy and Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Hajar Shekarchizadeh
- Department of Food Science and Technology, College of Agriculture, Isfahan University of Technology, Isfahan 84156-83111, Iran
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Domínguez-López I, Yago-Aragón M, Salas-Huetos A, Tresserra-Rimbau A, Hurtado-Barroso S. Effects of Dietary Phytoestrogens on Hormones throughout a Human Lifespan: A Review. Nutrients 2020; 12:E2456. [PMID: 32824177 PMCID: PMC7468963 DOI: 10.3390/nu12082456] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 07/31/2020] [Accepted: 08/12/2020] [Indexed: 02/07/2023] Open
Abstract
Dietary phytoestrogens are bioactive compounds with estrogenic activity. With the growing popularity of plant-based diets, the intake of phytoestrogen-rich legumes (especially soy) and legume-derived foods has increased. Evidence from preclinical studies suggests these compounds may have an effect on hormones and health, although the results of human trials are unclear. The effects of dietary phytoestrogens depend on the exposure (phytoestrogen type, matrix, concentration, and bioavailability), ethnicity, hormone levels (related to age, sex, and physiological condition), and health status of the consumer. In this review, we have summarized the results of human studies on dietary phytoestrogens with the aim of assessing the possible hormone-dependent outcomes and health effects of their consumption throughout a lifespan, focusing on pregnancy, childhood, adulthood, and the premenopausal and postmenopausal stages. In pregnant women, an improvement of insulin metabolism has been reported in only one study. Sex hormone alterations have been found in the late stages of childhood, and goitrogenic effects in children with hypothyroidism. In premenopausal and postmenopausal women, the reported impacts on hormones are inconsistent, although beneficial goitrogenic effects and improved glycemic control and cardiovascular risk markers have been described in postmenopausal individuals. In adult men, different authors report goitrogenic effects and a reduction of insulin in non-alcoholic fatty liver patients. Further carefully designed studies are warranted to better elucidate the impact of phytoestrogen consumption on the endocrine system at different life stages.
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Affiliation(s)
- Inés Domínguez-López
- Department of Nutrition, Food Science and Gastronomy, XaRTA, INSA, School of Pharmacy and Food Sciences, University of Barcelona, 08028 Barcelona, Spain; (I.D.-L.); (M.Y.-A.); (S.H.-B.)
| | - Maria Yago-Aragón
- Department of Nutrition, Food Science and Gastronomy, XaRTA, INSA, School of Pharmacy and Food Sciences, University of Barcelona, 08028 Barcelona, Spain; (I.D.-L.); (M.Y.-A.); (S.H.-B.)
| | - Albert Salas-Huetos
- Andrology and IVF Laboratory, Division of Urology, Department of Surgery, University of Utah School of Medicine, Salt Lake City, UT 84108, USA;
| | - Anna Tresserra-Rimbau
- Department of Nutrition, Food Science and Gastronomy, XaRTA, INSA, School of Pharmacy and Food Sciences, University of Barcelona, 08028 Barcelona, Spain; (I.D.-L.); (M.Y.-A.); (S.H.-B.)
- Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y la Nutrición (CIBEROBN), Instituto de Salud Carlos III, 28029 Madrid, Spain
- Unitat de Nutrició, Departament de Bioquímica i Biotecnologia, Universitat Rovira i Virgili, 43204 Reus, Spain
- Institut d’Investigació Sanitària Pere Virgili (IISPV), 43201 Reus, Spain
| | - Sara Hurtado-Barroso
- Department of Nutrition, Food Science and Gastronomy, XaRTA, INSA, School of Pharmacy and Food Sciences, University of Barcelona, 08028 Barcelona, Spain; (I.D.-L.); (M.Y.-A.); (S.H.-B.)
- Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y la Nutrición (CIBEROBN), Instituto de Salud Carlos III, 28029 Madrid, Spain
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Abstract
Many studies have shown that estrogen has a protective effect on premenopausal women with metabolic disorders and non-alcoholic fatty liver disease. Estrogen supplements may, at least in theory, prevent the development and progression of NAFLD, while the possibility of inducing cancer limits its application in practice. Phytoestrogen is extracted from plants, whose molecular structure and biological activity are similar to those of mammals' estrogen, therefore, could replace the role of estrogen and prevent the occurrence of adverse reactions to estrogen. This article reviews the published literature related to phytoestrogens and NAFLD as well as suggest the possible mechanisms that may underlie the association between phytoestrogens and NAFLD. It is hoped to provide basis for the treatment of NAFLD with phytoestrogen.
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Affiliation(s)
- Hui Li
- Department of Dentistry, Jilin University, Changchun, China
| | - Erna Jia
- Department of Gastroenterology and Hepatology, Jilin University, Changchun, China
| | - Jian Jiao
- Department of Gastroenterology and Hepatology, Jilin University, Changchun, China
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Wang Y, Hernandez G, Mack WJ, Schneider LS, Yin F, Brinton RD. Retrospective analysis of phytoSERM for management of menopause-associated vasomotor symptoms and cognitive decline: a pilot study on pharmacogenomic effects of mitochondrial haplogroup and APOE genotype on therapeutic efficacy. Menopause 2020; 27:57-65. [PMID: 31567873 PMCID: PMC7100617 DOI: 10.1097/gme.0000000000001418] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE PhytoSERM is a selective estrogen receptor beta (ERβ) modulator comprised of three phytoestrogens: genistein, daidzein, and S-equol. The PhytoSERM formulation promotes estrogenic action in the brain while largely inactive or inhibitory in reproductive tissue. A phase Ib/IIa clinical trial (ClinicalTrial.gov ID: NCT01723917) of PhytoSERM demonstrated safety and pharmacokinetics profile of PhytoSERM. While this study was not powered for efficacy analysis, we conducted a pilot, retrospective analysis to identify potential responders to PhytoSERM treatment, and to determine the optimal populations to pursue in a phase II clinical trial of efficacy of the PhytoSERM formulation. METHODS In this retrospective analysis involving 46 participants (n = 16, placebo; n = 18, 50 mg/d PhytoSERM; and n = 12, 100 mg/d PhytoSERM), the therapeutic effect of PhytoSERM was stratified by 2 genetic risk modulators for Alzheimer's disease: mitochondrial haplogroup and APOE genotype. RESULTS Our retrospective responder analysis indicated that participants on 50 mg of daily PhytoSERM (PS50) for 12 weeks significantly reduced hot flash frequency compared with their baseline (mean [95% CI])-1.61, [-2.79, -0.42], P = 0.007). Participants on 50 mg of PhytoSERM also had significantly greater reduction in hot flash frequency at 12 weeks compared with the placebo group (-1.38, -0.17 [median PS50, median placebo], P = 0.04). Fifty milligrams of daily PhytoSERM also preserved cognitive function in certain aspects of verbal learning and executive function. Our analysis further suggests that mitochondrial haplogroup and APOE genotype can modify PhytoSERM response. CONCLUSION Our data support a precision medicine approach for further development of PhytoSERM as a safe and effective alternative to hormone therapy for menopause-associated hot flash and cognitive decline. While definitive determination of PhytoSERM efficacy is limited by the small sample size, these data provide a reasonable rationale to extend analyses to a larger study set powered to address statistical significance.
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Affiliation(s)
- Yiwei Wang
- School of Pharmacy, University of Southern California, Los Angeles, CA
- Center for Innovation in Brain Science and Department of Pharmacology, University of Arizona, Tucson, AZ
| | - Gerson Hernandez
- School of Pharmacy, University of Southern California, Los Angeles, CA
- Center for Innovation in Brain Science and Department of Pharmacology, University of Arizona, Tucson, AZ
| | - Wendy J Mack
- Keck School of Medicine, University of Southern California, Los Angeles, CA
| | - Lon S Schneider
- Keck School of Medicine, University of Southern California, Los Angeles, CA
| | - Fei Yin
- School of Pharmacy, University of Southern California, Los Angeles, CA
- Center for Innovation in Brain Science and Department of Pharmacology, University of Arizona, Tucson, AZ
| | - Roberta D Brinton
- School of Pharmacy, University of Southern California, Los Angeles, CA
- Center for Innovation in Brain Science and Department of Pharmacology, University of Arizona, Tucson, AZ
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Viggiani MT, Polimeno L, Di Leo A, Barone M. Phytoestrogens: Dietary Intake, Bioavailability, and Protective Mechanisms against Colorectal Neoproliferative Lesions. Nutrients 2019; 11:nu11081709. [PMID: 31344966 PMCID: PMC6722977 DOI: 10.3390/nu11081709] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 07/22/2019] [Accepted: 07/23/2019] [Indexed: 02/07/2023] Open
Abstract
Phytoestrogens are natural substances that have been extensively studied for their beneficial effect on human health. Herein, we analyzed the data of the literature on the role of phytoestrogens in the prevention of colorectal neoproliferative lesions (CNL). Both in vitro and in vivo studies suggest that the beneficial effects of phytoestrogens on CNL mainly depend on their ability to bind estrogen receptor beta (ERβ) in the intestinal mucosa and counter ER-alpha (ERα) activity. Epidemiological data demonstrate a correlation between the low prevalence of CNL in Eastern populations and the consumption of soy products (phytoestrogen-enriched diet). However, both observational and interventional studies have produced inconclusive results. In our opinion, these discrepancies depend on an inadequate evaluation of phytoestrogen intake (dietary questionnaires were not aimed at establishing phytoestrogen intake) and absorption (depending mainly on the intestinal microbiota of the analyzed subjects). For this reason, in the present review, we performed an overview of phytoestrogen dietary intake and metabolism to offer the reader the opportunity for a better interpretation of the literature. Future prospective trials focusing on the protective effect of phytoestrogens against CNL should take into account both their dietary intake and absorption, considering the effective role of the intestinal microbiota.
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Affiliation(s)
- Maria Teresa Viggiani
- Gastroenterology Unit, Department of Emergency and Organ Transplantation (D.E.T.O.), University of Bari, Policlinic University Hospital, Piazza G. Cesare 11, 70124 Bari, Italy
| | - Lorenzo Polimeno
- Gastroenterology Unit, Department of Emergency and Organ Transplantation (D.E.T.O.), University of Bari, Policlinic University Hospital, Piazza G. Cesare 11, 70124 Bari, Italy
| | - Alfredo Di Leo
- Gastroenterology Unit, Department of Emergency and Organ Transplantation (D.E.T.O.), University of Bari, Policlinic University Hospital, Piazza G. Cesare 11, 70124 Bari, Italy
| | - Michele Barone
- Gastroenterology Unit, Department of Emergency and Organ Transplantation (D.E.T.O.), University of Bari, Policlinic University Hospital, Piazza G. Cesare 11, 70124 Bari, Italy.
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11
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Huang G, Xu J, Guo TL. Isoflavone daidzein regulates immune responses in the B6C3F1 and non-obese diabetic (NOD) mice. Int Immunopharmacol 2019; 71:277-284. [PMID: 30927738 PMCID: PMC6529284 DOI: 10.1016/j.intimp.2019.03.046] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 03/19/2019] [Indexed: 12/14/2022]
Abstract
Daidzein (DAZ), a dominant isoflavone in various natural products such as soybeans, has been gaining attention due to the beneficial health effects (e.g., protection against cancer and diabetes) of its metabolites. Our major hypothesis was that dietary exposure to the soy phytoestrogen DAZ could modulate the immune responses toward a protective effect and lead to improved metabolic functions (such as glucose metabolism). In this study, we applied complementary mouse models, the hybrid B6C3F1 and inbred type 1 diabetes prone non-obese diabetic (NOD) mice, to investigate if DAZ exposure modulated the immune responses. The animals were orally administered DAZ at various physiological doses (2-20 mg/kg body weight) during adulthood. DAZ significantly altered the relative organ weights in female B6C3F1 mice and decreased the B cell population (represented by CD3-IgM+), while the T cell populations (represented by CD3+IgM-, CD4+CD8- and CD4-CD8+) were increased. In addition, DAZ dosing produced a decrease in the percentage of late apoptotic thymocytes. However, the activities cytotoxic T cells and natural killer cells were not altered in the B6C3F1 mice. In NOD mice, the blood glucose level and glucose tolerance were not affected by DAZ exposure, but DAZ modulated the antibody production, as shown by increased levels of IgG2b in NOD females and IgG1 in NOD males. Further, DAZ increased CD8+CD25+ splenocytes in NOD females. Taken together, DAZ induced an immunomodulatory effect in both NOD and B6C3F1 mouse strains; however, minimal effects on glucose homeostasis were observed.
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Affiliation(s)
- Guannan Huang
- Department of Environmental Health Sciences, College of Public Health, University of Georgia, Athens, GA 30602, United States of America.
| | - Joella Xu
- Department of Veterinary Biosciences and Diagnostic Imaging, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, United States of America.
| | - Tai L Guo
- Department of Environmental Health Sciences, College of Public Health, University of Georgia, Athens, GA 30602, United States of America; Department of Veterinary Biosciences and Diagnostic Imaging, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, United States of America.
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12
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Torno C, Staats S, Fickler A, de Pascual-Teresa S, Soledad Izquierdo M, Rimbach G, Schulz C. Combined effects of nutritional, biochemical and environmental stimuli on growth performance and fatty acid composition of gilthead sea bream (Sparus aurata). PLoS One 2019; 14:e0216611. [PMID: 31086380 PMCID: PMC6516738 DOI: 10.1371/journal.pone.0216611] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Accepted: 04/24/2019] [Indexed: 01/06/2023] Open
Abstract
The reliance of the aquafeed industry on marine resources has to be reduced by innovative approaches in fish nutrition. Thus, a three-factorial approach (fish oil reduced diet, phytochemical genistein, and temperature reduction) was chosen to investigate the interaction of effects on growth performance and tissue omega-3 long chain polyunsaturated fatty acid (LC-PUFA) levels in juvenile sea bream (Sparus aurata, 12.5 ± 2.2 g). Genistein is a phytoestrogen with estrogen-like activity and thus LC-PUFA increasing potential. A decrease in the rearing temperature was chosen based on the positive effects of low temperature on fish lipid quality. The experimental diets were reduced in marine ingredients and had a fish oil content of either 6% dry matter (DM; F6: positive control) or 2% DM (F2: negative control) and were administered in the plain variant or with inclusion of 0.15% DM genistein (F6 + G and F2 + G). The feeding trial was performed simultaneously at 23°C and 19°C. The results indicated that solely temperature had a significant effect on growth performance and whole body nutrient composition of sea bream. Nevertheless, the interaction of all three factors significantly affected the fatty acid compositions of liver and fillet tissue. Most importantly, they led to a significant increase by 4.3% of fillet LC-PUFA content in sea bream fed with the diet F6 + G in comparison to control fish fed diet F6, when both groups were held at 19°C. It is hypothesized that genistein can act via estrogen-like as well as other mechanisms and that the dietary LC-PUFA content may impact its mode of action. Temperature most likely exhibited its effects indirectly via altered growth rates and metabolism. Although effects of all three factors and of genistein in particular were only marginal, they highlight a possibility to utilize the genetic capacity of sea bream to improve tissue lipid quality.
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Affiliation(s)
- Claudia Torno
- GMA—Gesellschaft für Marine Aquakultur mbH, Büsum, Germany
- Marine Aquaculture Research Group, Institute of Animal Breeding and Husbandry, Faculty of Agricultural and Nutritional Sciences, University of Kiel, Kiel, Germany
- * E-mail:
| | - Stefanie Staats
- Food Science Research Group, Institute of Human Nutrition and Food Science, Faculty of Agricultural and Nutritional Sciences, University of Kiel, Kiel, Germany
| | - Anna Fickler
- GMA—Gesellschaft für Marine Aquakultur mbH, Büsum, Germany
- Marine Aquaculture Research Group, Institute of Animal Breeding and Husbandry, Faculty of Agricultural and Nutritional Sciences, University of Kiel, Kiel, Germany
| | - Sonia de Pascual-Teresa
- Department of Metabolism and Nutrition, Institute of Food Science, Food Technology and Nutrition (ICTAN–CSIC), Madrid, Spain
| | - María Soledad Izquierdo
- Grupo de Investigación en Acuicultura (GIA), Instituto Universitario Ecoaqua, Universidad de Las Palmas de Gran Canaria, Telde, Las Palmas, Canary Islands, Spain
| | - Gerald Rimbach
- Food Science Research Group, Institute of Human Nutrition and Food Science, Faculty of Agricultural and Nutritional Sciences, University of Kiel, Kiel, Germany
| | - Carsten Schulz
- GMA—Gesellschaft für Marine Aquakultur mbH, Büsum, Germany
- Marine Aquaculture Research Group, Institute of Animal Breeding and Husbandry, Faculty of Agricultural and Nutritional Sciences, University of Kiel, Kiel, Germany
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13
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Braxas H, Rafraf M, Karimi Hasanabad S, Asghari Jafarabadi M. Effectiveness of Genistein Supplementation on Metabolic Factors and Antioxidant Status in Postmenopausal Women With Type 2 Diabetes Mellitus. Can J Diabetes 2019; 43:490-497. [PMID: 31307913 DOI: 10.1016/j.jcjd.2019.04.007] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2018] [Revised: 03/14/2019] [Accepted: 04/12/2019] [Indexed: 01/22/2023]
Abstract
OBJECTIVES The risk of type 2 diabetes mellitus (T2DM) increases in women after menopause. Genistein is known to modulate metabolic pathways. The aim of this study was to investigate the effects of genistein supplementation on metabolic parameters, oxidative stress and obesity values in postmenopausal women with T2DM. METHODS This randomized, double-blind, placebo-controlled clinical trial was conducted on 54 postmenopausal women 47 to 69 years of age with T2DM. The genistein group (n=28) was given 2 genistein capsules daily for 12 weeks. Each capsule contained 54 mg genistein. The placebo group (n=26) received 2 placebo capsules daily for the same period. Fasting blood samples, anthropometric measurements, dietary intakes and physical activity levels of subjects were collected at baseline and at the end of the trial. Data were analyzed by independent t test, paired t test and analysis of covariance. RESULTS Genistein supplementation significantly reduced serum levels of fasting blood glucose (FBS), glycated hemoglobin (A1C), serum triglyceride (TG) and malondialdehyde (MDA) and increased total antioxidant capacity (TAC) compared with the placebo group at the end of the study (p<0.05 for all). Serum high-density lipoprotein cholesterol and quantitative insulin sensitivity check index significantly increased within the genistein group. Changes in anthropometric indexes and other variables were not significant in any of the groups. CONCLUSIONS Genistein administration improved FBS, A1C, serum TG, TAC and MDA in postmenopausal women with T2DM and may be useful in the control of metabolic status and oxidative stress in these subjects.
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Affiliation(s)
- Hassan Braxas
- Department of Community Nutrition, Faculty of Nutrition and Food Science, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Maryam Rafraf
- Nutrition Research Center, Department of Community Nutrition, Faculty of Nutrition and Food Science, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Saadat Karimi Hasanabad
- Department of Community Nutrition, Faculty of Nutrition and Food Science, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Asghari Jafarabadi
- Road Traffic Injury Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Statistics and Epidemiology, Faculty of Health, Tabriz University of Medical Sciences, Tabriz, Iran
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Thaung Zaw JJ, Howe PRC, Wong RHX. Postmenopausal health interventions: Time to move on from the Women's Health Initiative? Ageing Res Rev 2018; 48:79-86. [PMID: 30355506 DOI: 10.1016/j.arr.2018.10.005] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 09/25/2018] [Accepted: 10/17/2018] [Indexed: 11/15/2022]
Abstract
Menopause is a critical period during which, without timely interventions, increased risks of cardiovascular and metabolic diseases, osteoporosis, sexual dysfunction and premature cognitive decline will contribute to diminished quality-of-life in women. Hormone therapy (HT) used to be the standard of care for managing vasomotor symptoms and prevention of chronic diseases until publication of the Women's Health Initiative (WHI) in 2002. Concerned about risks highlighted in WHI publications, many symptomatic women promptly ceased HT which resulted in increased vasomotor symptoms, osteoporosis-related-fractures and insomnia. Data from post-hoc WHI analyses and newer clinical trials consistently show reductions in coronary heart disease and mortality when estrogen therapy is initiated soon after menopause, whereas administration in later years and/or in combination with progesterone carries increased risks. However, no validated primary preventive strategies are available for younger postmenopausal women (<60 years), highlighting the need to re-evaluate the use of estrogen alone for which the risk-benefit balance appears positive. In contrast, in older women (>60 years), risks associated with oral HT exceed benefits; however transdermal estrogen may offer a safer alternative and should be further evaluated. Alternative therapies such as phytoestrogens and non-hormonal prescriptions may be beneficial for older women or those who are unsuitable for HT. Long-term head-to-head comparisons of HT with alternative interventions are warranted to confirm their efficacy for chronic disease prevention.
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Affiliation(s)
- Jay Jay Thaung Zaw
- Clinical Nutrition Research Centre, School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, New South Wales, 2308, Australia
| | - Peter Ranald Charles Howe
- Clinical Nutrition Research Centre, School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, New South Wales, 2308, Australia; University of Southern Queensland, Institute for Resilient Regions, Springfield Central, Queensland, 4300, Australia
| | - Rachel Heloise Xiwen Wong
- Clinical Nutrition Research Centre, School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, New South Wales, 2308, Australia; University of Southern Queensland, Institute for Resilient Regions, Springfield Central, Queensland, 4300, Australia.
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15
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Lu LJW, Chen NW, Nayeem F, Ramanujam VMS, Kuo YF, Brunder DG, Nagamani M, Anderson KE. Novel effects of phytoestrogenic soy isoflavones on serum calcium and chloride in premenopausal women: A 2-year double-blind, randomized, placebo-controlled study. Clin Nutr 2018; 37:1862-1870. [PMID: 29183775 PMCID: PMC5948121 DOI: 10.1016/j.clnu.2017.11.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Revised: 11/03/2017] [Accepted: 11/04/2017] [Indexed: 11/24/2022]
Abstract
BACKGROUND Soy phytoestrogens are potential alternatives to postmenopausal hormone replacement therapy (HRT). Adverse effects of HRT such as myocardial infarction, stroke, and pulmonary embolism are mediated by calcium-induced signaling. OBJECTIVE To determine whether soy isoflavones affect serum calcium in healthy female subjects. DESIGN In a double-blind trial, 197 premenopausal women were randomly assigned to either isoflavone (N = 99) or placebo pills (N = 98) 5 days per week for up to 2 years, plus prenatal vitamins. Isoflavone pills contained 60 mg genistein, 60 mg daidzein and 16.6 mg glycitein (expressed as aglycone equivalents). All pills contained 15 mg riboflavin as an adherence marker. Blood chemistries and urinary daidzein, genistein and riboflavin were measured multiple times during the luteal phase before and during treatment. RESULTS Analysis of the adherent population (N = 83 per group), revealed significantly strong associations between urinary levels of isoflavones and serum concentrations of calcium (regression coefficients 0.082 for daidzein and 0.229 for genistein, all P < 0.01) and chloride (regression coefficient, -1.537 for genistein, P < 0.0001), mediated in part by albumin. The effects amounted to mean changes of +0.24 mg/dL for calcium and -1.45 mEq/L for chloride, with each visit for subjects excreting the most vs. the least amounts of isoflavones. These associations were not evident in the intention-to-treat analysis (N = 197) that did not assess expected variations in isoflavone levels within and between subjects from metabolism and adherence. CONCLUSIONS These novel and strong effects of soy isoflavones on calcium homeostasis have important implications for long term effects of these natural substances on cardiovascular diseases.
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Affiliation(s)
- Lee-Jane W Lu
- Department of Preventive Medicine and Community Health, The University of Texas Medical Branch, Galveston, TX, USA.
| | - Nai-Wei Chen
- Department of Preventive Medicine and Community Health, The University of Texas Medical Branch, Galveston, TX, USA.
| | - Fatima Nayeem
- Department of Preventive Medicine and Community Health, The University of Texas Medical Branch, Galveston, TX, USA.
| | - V-M Sadagopa Ramanujam
- Department of Preventive Medicine and Community Health, The University of Texas Medical Branch, Galveston, TX, USA.
| | - Yong-Fang Kuo
- Department of Preventive Medicine and Community Health, The University of Texas Medical Branch, Galveston, TX, USA.
| | - Donald G Brunder
- Department of Academic Computing, The University of Texas Medical Branch, Galveston, TX, USA.
| | - Manubai Nagamani
- Departments of Obstetrics and Gynecology, The University of Texas Medical Branch, Galveston, TX, USA.
| | - Karl E Anderson
- Department of Preventive Medicine and Community Health, The University of Texas Medical Branch, Galveston, TX, USA.
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Russo GI, Di Mauro M, Regis F, Reale G, Campisi D, Marranzano M, Lo Giudice A, Solinas T, Madonia M, Cimino S, Morgia G. Association between dietary phytoestrogens intakes and prostate cancer risk in Sicily. Aging Male 2018; 21:48-54. [PMID: 28817364 DOI: 10.1080/13685538.2017.1365834] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
OBJECTIVE In this study we aimed to investigate the association between dietary phytoestrogen consumption and prostate cancer in a sample of southern Italian individuals. METHODS A population-based case-control study on the association between prostate cancer and dietary factors was conducted from January 2015 to December 2016 in a single institution of the municipality of Catania, southern Italy (Registration number: 41/2015). A total of 118 histopathological-verified prostate cancer (PCa) cases and a total of 222 controls were collected. Dietary data was collected by using two food frequency questionnaires. RESULTS Patients with PCa consumed significantly higher levels of phytoestrogens. Multivariate logistic regression showed that lignans (Q[quartile]4 vs. Q1, OR [odds ratio] = 4.72; p < .05) and specifically, lariciresinol (Q4 vs. Q1, OR = 4.60; p < .05), pinoresinol (Q4 vs. Q1, OR = 5.62; p < .05), matairesinol (Q4 vs. Q1, OR = 3.63; p < .05), secoisolariciresinol (Q4 vs. Q1, OR = 4.10; p < .05) were associated with increased risk of PCa. Furthermore, we found that isoflavones (Q3 vs. Q1, OR = 0.28; p < .05) and specifically, genistein (Q4 vs. Q1, OR = 0.40; p < .05) were associated with reduced risk of PCa. CONCLUSION We found of an inverse association between dietary isoflavone intake and PCa, while a positive association was found with lignans intake.
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Affiliation(s)
| | | | - Federica Regis
- a Urology Section , University of Catania , Catania , Italy
| | - Giulio Reale
- a Urology Section , University of Catania , Catania , Italy
| | | | - Marina Marranzano
- b Department of Medical and Surgical Sciences and Advanced Technologies "G.F. Ingrassia", Section of Hygiene and Preventive Medicine , University of Catania , Catania , Italy
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Abstract
According to the Academy of Nutrition and Dietetics' influential position statement on vegetarianism, meat and seafood can be replaced with milk, soy/legumes, and eggs without any negative effects in children. The United States Department of Agriculture endorses a similar view. The present paper argues that the Academy of Nutrition and Dietetics ignores or gives short shrift to direct and indirect evidence that vegetarianism may be associated with serious risks for brain and body development in fetuses and children. Regular supplementation with iron, zinc, and B12 will not mitigate all of these risks. Consequently, we cannot say decisively that vegetarianism or veganism is safe for children.
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Affiliation(s)
- Nathan Cofnas
- a Balliol College , University of Oxford , Oxford OX1 3BJ , UK
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18
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Godos J, Bergante S, Satriano A, Pluchinotta FR, Marranzano M. Dietary Phytoestrogen Intake is Inversely Associated with Hypertension in a Cohort of Adults Living in the Mediterranean Area. Molecules 2018; 23:molecules23020368. [PMID: 29425149 PMCID: PMC6017940 DOI: 10.3390/molecules23020368] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Revised: 02/05/2018] [Accepted: 02/06/2018] [Indexed: 02/08/2023] Open
Abstract
Background: Dietary polyphenols, including phytoestrogens are abundantly present in a balanced diet. Evidence for their role in preventing non-communicable diseases is emerging. Methods: We examined the association between estimated habitual intakes of dietary phytoestrogens and hypertension in a cohort study. The baseline data included 1936 men and women aged 18 years and older. Intakes of total phytoestrogens, isoflavones, and lignans were calculated from validated food frequency questionnaire. Data on the polyphenols content in foods were retrieved from the Phenol-Explorer database. Results: Individuals in the highest quartile of dietary phytoestrogens intake were less likely to be hypertensive (OR: 0.66, 95% CI: 0.44–0.98); moreover, the association showed a significant decreasing trend. Isoflavones and lignans were not associated with lower odds of hypertension; however, some individual compounds, such as biochanin A and pinoresinol showed an independent inverse association with hypertension. Conclusions: Dietary phytoestrogens are associated with lower likelihood of hypertension in adults living in the Mediterranean area. Future studies are needed to confirm the present findings (i.e., prospective cohort studies) and to better understand the mechanisms underlying such associations.
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Affiliation(s)
- Justyna Godos
- Department of Medical and Surgical Sciences and Advanced Technologies "G.F. Ingrassia", University of Catania, 95125 Catania, Italy.
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy.
| | - Sonia Bergante
- IRCCS Policlinico San Donato, 20097 San Donato Milanese (MI), Italy.
| | - Angela Satriano
- IRCCS Policlinico San Donato, 20097 San Donato Milanese (MI), Italy.
| | | | - Marina Marranzano
- Department of Medical and Surgical Sciences and Advanced Technologies "G.F. Ingrassia", University of Catania, 95125 Catania, Italy.
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Kalachaveedu M, Raghavan D, Telapolu S, Kuruvilla S, Kedike B. Phytoestrogenic effect of Inula racemosa Hook f - A cardioprotective root drug in traditional medicine. J Ethnopharmacol 2018; 210:408-416. [PMID: 28893570 DOI: 10.1016/j.jep.2017.09.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2016] [Revised: 06/12/2017] [Accepted: 09/01/2017] [Indexed: 06/07/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Roots of Inula racemosa are used as a cardio protective in Ayurveda in India, being prescribed as a medicine for precordial chest pain, cough and dyspnoea, both singly and as a poly herbal. AIM Evaluation of Phytoestrogenic activity of the root extracts of Inula racemosa and compounds isolated therefrom in vivo, in silico and in vitro. MATERIALS AND METHODS Alcohol (IrA) and hexane (IrH) extracts characterized by HPTLC/GC-MS analysis respectively and processed for compound isolation were evaluated for estrogenic activity (100 & 250mg/kg bw) by the Immature rat uterotrophic assay using ethinylestradiol (EE -30µg/kg bw) as standard drug. Alantolactone (ALT), Isoalantolactone (IALT) and Stigmasterolglucoside (SG) isolated from the extracts were characterized and screened in silico for ERα, ERβ binding affinity, assessed in vitro for growth modulatory effects on MCF-7 cells by MTT assay and cell cycle distribution analysis using Flow cytometry. RT-PCR analysis evaluated the mRNA expression of pS2 in these cells post exposure to ALT, IALT and SG. RESULTS In the IrA treated groups there has been a statistically significant increase (P < 0.05) in absolute and normalised uterine weight, uterine diameter, endometrial thickness, luminal epithelial cell height,diameter of ovary and in the number of primary and secondary ovarian follicles relative to untreated controls. Presence of ciliated epithelial cells in the oviduct, elevated number of early growing follicles characterized by an increased oocyte diameter, and signs of vascularization in the cortex of ovarian sections in this group relative to EE treated group are indicative of pervasive activation of follicular growth and initiation. Virtual docking demonstrated ERα affinity for IALT, ERβ affinity for ALT, while SG showed a high binding affinity to both with a relatively greater ERβ binding affinity. Dose dependent decrease in cell viability mediated by IALT and SG in the MTT assay is corroborated by a statistically significant increase (p < 0.05) in sub G0-G1 cells by SG at 200 and 400µM in cell cycle analysis and there has been an induction of pS2 by IALT and SG in the ER regulated MCF-7 cells. CONCLUSIONS Demonstration of classical morphological changes induced by estrogen stimulation mediated by IrA in vivo at both the tested doses, isolation of the antioxidant SG from IrA and its dose dependent growth inhibitory effect on estrogen sensitive MCF-7 cells through apoptotic induction and an up regulation of pS2 are suggestive of an anti-estrogenic effect through estrogen receptor binding affinity, typical of phytoestrogens that bind to ER but do not elicit a full estrogenic response. The observed estrogenic effect of IrA suggests a multi mechanistic molecular action involving antioxidant as well as redox signalling pathways acting in consonance with their anti-estrogenic effects owing to the weak estrogen like competitive receptor binding of SG.
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Affiliation(s)
| | - Divya Raghavan
- Faculty of Pharmacy, Sri Ramachandra University, Chennai, India
| | - Srivani Telapolu
- SRU Center for Indian Systems of Medicine - Quality Assurance and Standardization, Central Research Facility, Sri Ramachandra University, Chennai, India
| | | | - Balakrishna Kedike
- Captain Srinivasa Murty Drug Research Institute for Ayurveda and Siddha (CSMDRIAS) Ministry of Health & Family Welfare, Government of India, Chennai, India
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Abstract
This review summarizes the 2016 NAMS/Pfizer-Wulf H. Utian Endowed Lecture that focused on the history and basic science of soy isoflavones. Described is a personal perspective of the background and history that led to the current interest in soy and isoflavones with a specific focus on the role that soy isoflavones play in the health of postmenopausal women. This overview covers the metabolism and physiological behavior of isoflavones, their biological properties that are of potential relevance to aging, issues related to the safety of soy isoflavones, and the role of the important intestinally derived metabolite S-(-)equol.
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Affiliation(s)
- Kenneth D R Setchell
- Department of Pathology and Laboratory Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
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21
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Kitisripanya T, Udomsin O, Komaikul J, Inyai C, Limsuwanchote S, Yusakul G, Putalun W. A pilot pharmacokinetic study of miroestrol and deoxymiroestrol on rabbit sera using polyclonal antibody-based icELISA analysis. Phytother Res 2017; 32:365-369. [PMID: 29168310 DOI: 10.1002/ptr.5991] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Revised: 10/18/2017] [Accepted: 10/22/2017] [Indexed: 11/07/2022]
Abstract
Miroestrol (ME) and deoxymiroestrol (DME) are the most potent phytoestrogens and bioactive markers in Pueraria candollei var. mirifica tuberous roots. To understand their pharmacokinetic profiles, a pharmacokinetic study of ME and DME, at 0.43 and 0.21 mg per kg body weight, respectively, in three rabbits was performed after orally administering a single dose of P. candollei var. mirifica enriched fraction extract. Two established polyclonal antibody-based indirect competitive enzyme-linked immunosorbent assays were validated to determine ME and DME in rabbit sera. In rabbits, the area under the 0- to 48-hr concentration-time curve of ME and DME were 854.92 and 1,692.84 ng·h/ml, respectively. The maximum concentration of ME was measured 1 hr after administration as 69.62 ± 8.28 ng/ml, and the maximum concentration of DME was measured at 3 hr as 81.8 ± 5.43 ng/ml. These results provide an initial approach for designing and studying the relationship between the ME and DME levels and their therapeutic effects based on their pharmacokinetic profiles.
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Affiliation(s)
- Tharita Kitisripanya
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, 40002, Thailand
- Research Group for Pharmaceutical Activities of Natural Products using Pharmaceutical Biotechnology (PANPB), National Research University-Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Orapin Udomsin
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, 40002, Thailand
- Research Group for Pharmaceutical Activities of Natural Products using Pharmaceutical Biotechnology (PANPB), National Research University-Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Jukrapun Komaikul
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, 40002, Thailand
- Research Group for Pharmaceutical Activities of Natural Products using Pharmaceutical Biotechnology (PANPB), National Research University-Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Chadathorn Inyai
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, 40002, Thailand
- Research Group for Pharmaceutical Activities of Natural Products using Pharmaceutical Biotechnology (PANPB), National Research University-Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Supattra Limsuwanchote
- Department of Pharmacology, Faculty of Science, Prince of Songkla University, Hat-Yai, 90112, Thailand
| | - Gorawit Yusakul
- School of Pharmacy, Walailak University, 222 Thaiburi, Thasala, Nakhon Si Thammarat, 80160, Thailand
| | - Waraporn Putalun
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, 40002, Thailand
- Research Group for Pharmaceutical Activities of Natural Products using Pharmaceutical Biotechnology (PANPB), National Research University-Khon Kaen University, Khon Kaen, 40002, Thailand
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Silva LA, Ferraz Carbonel AA, de Moraes ARB, Simões RS, Sasso GRDS, Goes L, Nunes W, Simões MJ, Patriarca MT. Collagen concentration on the facial skin of postmenopausal women after topical treatment with estradiol and genistein: a randomized double-blind controlled trial. Gynecol Endocrinol 2017; 33:845-848. [PMID: 28508697 DOI: 10.1080/09513590.2017.1320708] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Abstract
OBJECTIVE The objective of this study is to compare the effects of topical estrogen and genistein (a soy isoflavone) on the facial skin collagen of postmenopausal women not undergoing systemic hormonal therapy. METHODS This is a prospective, double blind, randomized, controlled clinical trial. Volunteer women (N = 30) 45-55 year old from the Endocrine Gynecology sector of the Gynecology Department of the Federal University of São Paulo (UNIFESP). The Ethical Committee of the Federal University of São Paulo approved the study (report no. 386/2004; registration on ClinicalTrials.gov NCT01553773), were assigned to topical treatment with either estrogen or genistein for 24 weeks. We quantified and compared facial collagen concentration before and after each treatment by performing pre-auricular skin biopsies. RESULTS Our data showed an increase in the amount of both type I and type III facial collagen by the end of both treatments. However, the outcomes of the estrogen GI (ER) group were superior to the genistein GII (GEN) group, with statistical significance p < 000.1 Conclusion: Treatment with topical estrogen is superior to genistein, but both have positive impacts on facial skin collagen. Nevertheless, it is still unclear whether prolonged use of genistein and other topical phytoestrogens could produce systemic effects and further research is needed to clarify this question.
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Affiliation(s)
| | | | | | - Ricardo S Simões
- c Department of Obstetrics and Gynecology , University of São Paulo , São Paulo , Brazil , and
| | | | - Lívia Goes
- b Department of Morphology and Genetic , Universidade Federal de Sao Paulo , Sao Paulo , Brazil
| | - Winnie Nunes
- b Department of Morphology and Genetic , Universidade Federal de Sao Paulo , Sao Paulo , Brazil
| | - Manuel Jesus Simões
- b Department of Morphology and Genetic , Universidade Federal de Sao Paulo , Sao Paulo , Brazil
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Fontvieille A, Dionne IJ, Riesco E. Long-term exercise training and soy isoflavones to improve quality of life and climacteric symptoms. Climacteric 2017; 20:233-239. [PMID: 28351156 DOI: 10.1080/13697137.2017.1294153] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2016] [Revised: 02/03/2017] [Accepted: 02/08/2017] [Indexed: 01/18/2023]
Abstract
OBJECTIVE To verify the efficacy of phytoestrogen supplementation combined with aerobic and resistance training on the improvement of climacteric symptoms and health-related quality of life (HRQoL) in postmenopausal women. METHODS From a pool of women who had participated in a 1-year intervention study and were randomly assigned to either exercise + phytoestrogen (EX + PHY) or exercise + placebo (EX + PL), a total of 31 healthy but overweight women (mean age 59.2 ± 4.8 years, body mass index 29.1 ± 3.5 kg/m2) finished the study (EX + PHY, n = 15; EX + PL, n = 16). All the following variables were measured before, after 6 months and after 12 months of intervention: body composition (fat and lean body mass, DXA), HRQoL (SF-36 questionnaire: physical and mental component summaries and subscales; and the 10-item Perceived Stress Scale questionnaire), climacteric symptoms (Kupperman Index questionnaire). RESULTS After 1 year of intervention, physical functioning (p = 0.003), role-emotional (p = 0.031), vitality (p = 0.007), and global health (p < 0.001) were significantly and similarly increased in both groups. Regarding climacteric symptoms, an improvement in the Kupperman index total score (p = 0.015) was observed. CONCLUSION Our results demonstrate that adding phytoestrogens to exercise training does not provide the additive effect for HRQoL in postmenopausal and overweight women. Moreover, exercise and phytoestrogen may interfere in the improvement of climacteric symptoms in the long term.
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Affiliation(s)
- A Fontvieille
- a Faculty of Physical Activity Sciences , University of Sherbrooke , Sherbrooke , Quebec , Canada
- b Research Aging Centre , CIUSSS de l'Estrie CHUS , Sherbrooke , Quebec , Canada
| | - I J Dionne
- a Faculty of Physical Activity Sciences , University of Sherbrooke , Sherbrooke , Quebec , Canada
- b Research Aging Centre , CIUSSS de l'Estrie CHUS , Sherbrooke , Quebec , Canada
| | - E Riesco
- a Faculty of Physical Activity Sciences , University of Sherbrooke , Sherbrooke , Quebec , Canada
- b Research Aging Centre , CIUSSS de l'Estrie CHUS , Sherbrooke , Quebec , Canada
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Abstract
This study was performed to evaluate the effect of concomitant supplementation of genistein and silicon on bone mineral density and bone metabolism-related markers in ovariectomized rat. Three-month-old Sprague Dawley female rats were subjected to bilateral ovariectomy (OVX) or sham surgery, and then the OVX rats were randomly divided into four groups: OVX-GEN, OVX-Si, OVX-GEN-Si, and OVX. Genistein and silicon supplementation was started immediately after OVX and continued for 10 weeks. In the OVX-GEN group, 5 mg genistein per gram body weight was injected subcutaneously. The OVX-Si group was given soluble silicon daily in demineralized water (Si 20 mg/kg body weight/day). The OVX-GEN-Si group was given subcutaneous injections of 5 mg genistein per gram body weight, at the same time, given soluble silicon daily (Si 20 mg/kg body weight/day). The results showed that the genistein supplementation in the OVX rats significantly prevented the loss of uterus weight; however, the silicon supplementation showed no effect on the uterus weight loss. The lumbar spine and femur bone mineral density was significantly decreased after OVX surgery; however, this decrease was inhibited by the genistein and/or silicon, and the BMD of the lumbar spine and femur was the highest in the OVX-GEN-Si-treated group. Histomorphometric analyses showed that the supplementation of genistein and/or silicon restored bone volume and trabecular thickness of femoral trabecular bone in the OVX group. Besides, the treatment with genistein and silicon for 10 weeks increased the serum levels of calcium and phosphorus in the OVX rats; serum calcium and serum phosphorus in the OVX-GEN-Si group were higher than those in the OVX-GEN and OVX-Si group (P < 0.05). At the same time, the treatment with genistein and/or silicon decreased serum alkaline phosphatase (ALP) and osteocalcin, which were increased by ovariectomy; serum ALP and osteocalcin in the OVX-GEN-Si group were lower than those in the OVX-GEN and OVX-Si groups (P < 0.05). The results above indicate that genistein and silicon have synergistic effects on bone formation in ovariectomized rats.
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Affiliation(s)
- Shanshan Qi
- Vitamin D Research Institute, Shaanxi Sci-Tech University, Chaoyang Road, Hantai District, Hanzhong, Shaanxi, 723000, China
| | - Hongxing Zheng
- College of Biological Science and Engineering, Shaanxi Sci-Tech University, Hanzhong, Shaanxi, 723000, China.
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Thongon N, Boonmuen N, Suksen K, Wichit P, Chairoungdua A, Tuchinda P, Suksamrarn A, Winuthayanon W, Piyachaturawat P. Selective Estrogen Receptor Modulator (SERM)-like Activities of Diarylheptanoid, a Phytoestrogen from Curcuma comosa, in Breast Cancer Cells, Pre-osteoblast Cells, and Rat Uterine Tissues. J Agric Food Chem 2017; 65:3490-3496. [PMID: 28412809 DOI: 10.1021/acs.jafc.7b00769] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Diarylheptanoids from Curcuma comosa, of the Zingiberaceae family, exhibit diverse estrogenic activities. In this study we investigated the estrogenic activity of a major hydroxyl diarylheptanoid, 7-(3,4 -dihydroxyphenyl)-5-hydroxy-1-phenyl-(1E)-1-heptene (compound 092) isolated from C. comosa. The compound elicited different transcriptional activities of estrogen agonist at low concentrations (0.1-1 μM) and antagonist at high concentrations (10-50 μM) using luciferase reporter gene assay in HEK-293T cells. In human breast cancer (MCF-7) cells, compound 092 showed an anti-estrogenic activity by down-regulating ERα-signaling and suppressing estrogen-responsive genes, whereas it attenuated the uterotrophic effect of estrogen in immature ovariectomized rats. Of note, compound 092 promoted mouse pre-osteoblastic (MC3T3-E1) cell differentiation and the related bone markers, indicating its positive osteogenic effect. Our findings highlight a new, nonsteroidal, estrogen agonist/antagonist of catechol diarylheptanoid from C. comosa, which is scientific evidence supporting its potential as a dietary supplement to prevent bone loss with low risk of breast and uterine cancers in postmenopausal women.
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Affiliation(s)
- Natthakan Thongon
- Department of Physiology, Faculty of Science, Mahidol University , Bangkok 10400, Thailand
| | - Nittaya Boonmuen
- Department of Physiology, Faculty of Science, Mahidol University , Bangkok 10400, Thailand
| | - Kanoknetr Suksen
- Department of Physiology, Faculty of Science, Mahidol University , Bangkok 10400, Thailand
| | - Patsorn Wichit
- Department of Physiology, Faculty of Science, Mahidol University , Bangkok 10400, Thailand
| | - Arthit Chairoungdua
- Department of Physiology, Faculty of Science, Mahidol University , Bangkok 10400, Thailand
| | - Patoomratana Tuchinda
- Department of Chemistry, Faculty of Science, Mahidol University , Bangkok 10400, Thailand
| | - Apichart Suksamrarn
- Department of Chemistry, Faculty of Science, Ramkhamhaeng University , Bangkok 10240, Thailand
| | - Wipawee Winuthayanon
- School of Molecular Biosciences, College of Veterinary Medicine, Washington State University , Pullman, Washington 99164, United States
| | - Pawinee Piyachaturawat
- Department of Physiology, Faculty of Science, Mahidol University , Bangkok 10400, Thailand
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Martínez Steele E, Monteiro CA. Association between Dietary Share of Ultra-Processed Foods and Urinary Concentrations of Phytoestrogens in the US. Nutrients 2017; 9:nu9030209. [PMID: 28264475 PMCID: PMC5372872 DOI: 10.3390/nu9030209] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Revised: 01/22/2017] [Accepted: 02/07/2017] [Indexed: 11/16/2022] Open
Abstract
The aim of this study was to examine the relationship between dietary contribution of ultra-processed foods and urinary phytoestrogen concentrations in the US. Participants from cross-sectional 2009-2010 National Health and Nutrition Examination Survey aged 6+ years, selected to measure urinary phytoestrogens and with one 24-h dietary recall were evaluated (2692 participants). Food items were classified according to NOVA (a name, not an acronym), a four-group food classification based on the extent and purpose of industrial food processing. Ultra-processed foods are formulations manufactured using several ingredients and a series of processes (hence "ultra-processed"). Most of their ingredients are lower-cost industrial sources of dietary energy and nutrients, with additives used for the purpose of imitating sensorial qualities of minimally processed foods or of culinary preparations of these foods. Studied phytoestrogens included lignans (enterolactone and enterodiol) and isoflavones (genistein, daidzein, O-desmethylangolensin and equol). Gaussian regression was used to compare average urinary phytoestrogen concentrations (normalized by creatinine) across quintiles of energy share of ultra-processed foods. Models incorporated survey sample weights and were adjusted for age, sex, race/ethnicity, family income, and education, among other factors. Adjusted enterodiol geometric means decreased monotonically from 60.6 in the lowest quintile to 35.1 µg/g creatinine in the highest, while adjusted enterolactone geometric means dropped from 281.1 to 200.1 across the same quintiles, respectively. No significant linear trend was observed in the association between these quintiles and isoflavone concentrations. This finding reinforces the existing evidence regarding the negative impact of ultra-processed food consumption on the overall quality of the diet and expands it to include non-nutrients such as lignans.
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Affiliation(s)
- Eurídice Martínez Steele
- Department of Nutrition, School of Public Health, University of São Paulo, São Paulo 01246-907, Brazil.
- Center for Epidemiological Studies in Health and Nutrition, University of São Paulo, São Paulo 01246-907, Brazil.
| | - Carlos A Monteiro
- Department of Nutrition, School of Public Health, University of São Paulo, São Paulo 01246-907, Brazil.
- Center for Epidemiological Studies in Health and Nutrition, University of São Paulo, São Paulo 01246-907, Brazil.
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Zhang X, Cook KL, Warri A, Cruz IM, Rosim M, Riskin J, Helferich W, Doerge D, Clarke R, Hilakivi-Clarke L. Lifetime Genistein Intake Increases the Response of Mammary Tumors to Tamoxifen in Rats. Clin Cancer Res 2017; 23:814-824. [PMID: 28148690 PMCID: PMC5654585 DOI: 10.1158/1078-0432.ccr-16-1735] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Revised: 10/07/2016] [Accepted: 10/11/2016] [Indexed: 12/21/2022]
Abstract
PURPOSE Whether it is safe for estrogen receptor-positive (ER+) patients with breast cancer to consume soy isoflavone genistein remains controversial. We compared the effects of genistein intake mimicking either Asian (lifetime) or Caucasian (adulthood) intake patterns to that of starting its intake during tamoxifen therapy using a preclinical model. EXPERIMENTAL DESIGN Female Sprague-Dawley rats were fed an AIN93G diet supplemented with 0 (control diet) or 500 ppm genistein from postnatal day 15 onward (lifetime genistein). Mammary tumors were induced with 7,12-dimethylbenz(a)anthracene (DMBA), after which a group of control diet-fed rats were switched to genistein diet (adult genistein). When the first tumor in a rat reached 1.4 cm in diameter, tamoxifen was added to the diet and a subset of previously only control diet-fed rats also started genistein intake (post-diagnosis genistein). RESULTS Lifetime genistein intake reduced de novo resistance to tamoxifen, compared with post-diagnosis genistein groups. Risk of recurrence was lower both in the lifetime and in the adult genistein groups than in the post-diagnosis genistein group. We observed downregulation of unfolded protein response (UPR) and autophagy-related genes (GRP78, IRE1α, ATF4, and Beclin-1) and genes linked to immunosuppression (TGFβ and Foxp3) and upregulation of cytotoxic T-cell marker CD8a in the tumors of the lifetime genistein group, compared with controls, post-diagnosis, and/or adult genistein groups. CONCLUSIONS Genistein intake mimicking Asian consumption patterns improved response of mammary tumors to tamoxifen therapy, and this effect was linked to reduced activity of UPR and prosurvival autophagy signaling and increased antitumor immunity. Clin Cancer Res; 23(3); 814-24. ©2017 AACR.
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Affiliation(s)
- Xiyuan Zhang
- Department of Oncology, Georgetown University, Washington, District of Columbia
| | - Katherine L Cook
- Department of Surgical Sciences, Wake Forest University, Winston-Salem, North Carolina
| | - Anni Warri
- Department of Oncology, Georgetown University, Washington, District of Columbia
- Institute of Biomedicine, University of Turku Medical Faculty, Turku, Finland
| | - Idalia M Cruz
- Department of Oncology, Georgetown University, Washington, District of Columbia
| | - Mariana Rosim
- Department of Food and Experimental Nutrition, Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | - Jeffrey Riskin
- Department of Oncology, Georgetown University, Washington, District of Columbia
| | - William Helferich
- Department of Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, Urbana, Illinois
| | - Daniel Doerge
- Division of Biochemical Toxicology, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, Arkansas
| | - Robert Clarke
- Department of Oncology, Georgetown University, Washington, District of Columbia
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Engel N, Adamus A, Schauer N, Kühn J, Nebe B, Seitz G, Kraft K. Synergistic Action of Genistein and Calcitriol in Immature Osteosarcoma MG-63 Cells by SGPL1 Up-Regulation. PLoS One 2017; 12:e0169742. [PMID: 28125641 PMCID: PMC5268493 DOI: 10.1371/journal.pone.0169742] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Accepted: 12/21/2016] [Indexed: 11/18/2022] Open
Abstract
Background Phytoestrogens such as genistein, the most prominent isoflavone from soy, show concentration-dependent anti-estrogenic or estrogenic effects. High genistein concentrations (>10 μM) also promote proliferation of bone cancer cells in vitro. On the other hand, the most active component of the vitamin D family, calcitriol, has been shown to be tumor protective in vitro and in vivo. The purpose of this study was to examine a putative synergism of genistein and calcitriol in two osteosarcoma cell lines MG-63 (early osteoblast), Saos-2 (mature osteoblast) and primary osteoblasts. Methods Thus, an initial screening based on cell cycle phase alterations, estrogen (ER) and vitamin D receptor (VDR) expression, live cell metabolic monitoring, and metabolomics were performed. Results Exposure to the combination of 100 μM genistein and 10 nM calcitriol reduced the number of proliferative cells to control levels, increased ERß and VDR expression, and reduced extracellular acidification (40%) as well as respiratory activity (70%), primarily in MG-63 cells. In order to identify the underlying cellular mechanisms in the MG-63 cell line, metabolic profiling via GC/MS technology was conducted. Combined treatment significantly influenced lipids and amino acids preferably, whereas metabolites of the energy metabolism were not altered. The comparative analysis of the log2-ratios revealed that after combined treatment only the metabolite ethanolamine was highly up-regulated. This is the result: a strong overexpression (350%) of the enzyme sphingosine-1-phosphate lyase (SGPL1), which irreversibly degrades sphingosine-1-phosphate (S1P), thereby, generating ethanolamine. S1P production and secretion is associated with an increased capability of migration and invasion of cancer cells. Conclusion From these results can be concluded that the tumor promoting effect of high concentrations of genistein in immature osteosarcoma cells is reduced by the co-administration of calcitriol, primarily by the breakdown of S1P. It should be tested whether this anti-metastatic pathway can be stimulated by combined treatment also in metastatic xenograft mice models.
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Affiliation(s)
- Nadja Engel
- Department of Pediatric Surgery, University Hospital Marburg, Baldingerstraße, Marburg, Germany
- Department of Cell Biology, Rostock University Medical Center, Schillingallee, Rostock, Germany
- * E-mail: ,
| | - Anna Adamus
- Department of Pediatric Surgery, University Hospital Marburg, Baldingerstraße, Marburg, Germany
- Department of Cell Biology, Rostock University Medical Center, Schillingallee, Rostock, Germany
| | - Nicolas Schauer
- Metabolomic Discoveries GmbH, Am Mühlenberg, Potsdam-Golm, Germany
| | - Juliane Kühn
- Department of Cell Biology, Rostock University Medical Center, Schillingallee, Rostock, Germany
| | - Barbara Nebe
- Department of Cell Biology, Rostock University Medical Center, Schillingallee, Rostock, Germany
| | - Guido Seitz
- Department of Pediatric Surgery, University Hospital Marburg, Baldingerstraße, Marburg, Germany
| | - Karin Kraft
- Complementary Medicine, Center of Internal Medicine, Rostock University Medical Center, Ernst-Heydemann-Straße 6, Rostock, Germany
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Swar G, Shailajan S, Menon S. Activity based evaluation of a traditional Ayurvedic medicinal plant: Saraca asoca (Roxb.) de Wilde flowers as estrogenic agents using ovariectomized rat model. J Ethnopharmacol 2017; 195:324-333. [PMID: 27884717 DOI: 10.1016/j.jep.2016.11.038] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Revised: 10/12/2016] [Accepted: 11/21/2016] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Saraca asoca (Roxb.) de Wilde, Ashok, is a popular traditional plant used for gynecological disorders. In India, the juice of Ashok flowers is traditionally consumed as a tonic by women in case of uterine disorders. But despite the use, its estrogenic potency is not yet evaluated and thus lacks the scientific recognition and acclaim. AIM OF THE STUDY This study is designed to investigate the estrogenic potential of standardized ethanolic extract of Saraca asoca flowers (SAF) using ovariectomized (OVX) female albino Wistar rat model. MATERIALS AND METHODS Saraca asoca flowers were extracted in ethanol using hot maceration technique and the extract was standardized in terms of content of four phytoestrogens like quercetin, kaempferol, β-sitosterol and luteolin using HPTLC technique. Safety of the extract was evaluated at a dose of 2000mg/kg body weight in female albino Wistar rats as per the OECD guidelines. Bilateral ovariectomy surgery was performed for the excision of both the ovaries. The OVX animals were treated with the ethanolic extract of SAF at three dose levels- 100mg/kg, 200mg/kg and 400mg/kg body weight in distilled water as a vehicle, orally once a day for two weeks. Estradiol valerate was employed as a modern drug for comparative evaluation of the results. Estrogenic potency was studied by assaying the activities of serum and plasma marker enzymes and hormones viz. G6PDH, LDH, 17β-estradiol, progesterone along with cholesterol, triglycerides and HDL, and vaginal cornification. The uterotrophic effect was evaluated by studying the histoarchitecture of the uterus, effect on uterine weight and changes in the levels of uterine glycogen content. RESULTS HPTLC revealed the presence of markers like quercetin, kaempferol, β-sitosterol and luteolin from the ethanolic extract of SAF. The content of the four markers was found to be 1.543mg/g, 0.924mg/g, 4.481mg/g and 2.349mg/g, respectively. SAF extract was found to be safe at an oral dose of 2000mg/kg body weight in rats. Among the three doses administered to ovariectomized rats, treatment with high dose was found to be more efficacious when compared with ovariectomized rats. CONCLUSION The findings of this study firmly support the estrogenic potency of ethanolic extract of SAF which may be by the reason of phytoestrogens.
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Affiliation(s)
- Gauri Swar
- Herbal Research Lab, Ramnarain Ruia College, Matunga (East), Mumbai 400019, India
| | - Sunita Shailajan
- Herbal Research Lab, Ramnarain Ruia College, Matunga (East), Mumbai 400019, India.
| | - Sasikumar Menon
- Institute for Advanced Training and Research in Interdisciplinary Sciences, Plot No. 194, Scheme No. 6, Road no. 15, Sion Koliwada (Sion East), Mumbai 400022, India
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Abstract
Summary Menopausal symptoms such as hot flushes and night sweats can be very disrupting. While hormone replacement therapy is an effective therapy, concerns about side effects and breast cancer risk have stimulated interest into alternative therapies such as phytoe-strogens. These are oestrogen-like compounds made by plants. Two major sources of phytoestrogens are soy and red clover. Data on randomised controlled trials of red clover for the control of menopausal symptoms are presented. The conflicting data are encouraging and suggest that phytoestrogens are a treatment modality that needs pursuing.
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Affiliation(s)
- Ronald Barentsen
- Dept. of Obstetrics and Gynaecology, Vrije Universiteit Medical Centre, Amsterdam, The Netherlands
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Abdi F, Alimoradi Z, Haqi P, Mahdizad F. Effects of phytoestrogens on bone mineral density during the menopause transition: a systematic review of randomized, controlled trials. Climacteric 2016; 19:535-545. [PMID: 27710141 DOI: 10.1080/13697137.2016.1238451] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Revised: 08/18/2016] [Accepted: 09/15/2016] [Indexed: 12/11/2022]
Abstract
INTRODUCTION Menopause is associated with increased bone resorption and decreased bone mineral density (BMD). Phytoestrogens are believed to prevent bone loss. This study reviewed relevant randomized, controlled trials to determine the effects of phytoestrogens on BMD in postmenopausal women. METHODS In order to perform this systematic review, PubMed, Science Direct, Scopus, Cochrane Library, ISI Web of Knowledge, and ProQuest databases were searched for articles published during 2005-2016. The main keywords used during the searches were "phytoestrogen" and "bone mineral density" and "menopause". The Cochrane Risk of Bias Assessment Tool was used to evaluate the quality of the selected studies and to assess the risk of bias. RESULTS A total of 23 eligible studies were included in this systematic review. Most selected studies used a double-blind, placebo-controlled design. In total, 3494 participants were enrolled in the selected trials. Different types of soy isoflavone extracts, including genistein extracts (either alone or in combination with daidzein), dietary products containing different amounts of phytoestrogens, and red clover extracts were used in the designed interventions. The duration of the interventions ranged from 7 weeks to 3 years. In most studies, the primary outcome was the efficacy of the designed intervention which was assessed through measuring whole body or regional BMD or bone mineral content, T-scores, and biomarkers of bone metabolism. CONCLUSIONS Isoflavones probably have beneficial effects on bone health in menopausal women. Nevertheless, there were controversial reports about changes in BMD. Supplementation with a phytoestrogen can probably prevent the reduction in BMD and maintain a healthy bone structure during menopause.
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Affiliation(s)
- F Abdi
- a PhD Candidate, Students' Research Office, Nursing and Midwifery Faculty , Shahid Beheshti University of Medical Sciences , Tehran , Iran
| | - Z Alimoradi
- b PhD Candidate, Department of Midwifery and Reproductive Health, Nursing and Midwifery Faculty , Shahid Beheshti University of Medical Sciences , Tehran , Iran
| | - P Haqi
- c MS of Midwifery, Students' Research Office, Nursing and Midwifery Faculty , Shahid Beheshti University of Medical Sciences , Tehran , Iran
| | - F Mahdizad
- c MS of Midwifery, Students' Research Office, Nursing and Midwifery Faculty , Shahid Beheshti University of Medical Sciences , Tehran , Iran
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Sosić-Jurjević B, Filipović B, Ajdzanović V, Brkić D, Ristić N, Stojanoski MM, Nestorović N, Trifunović S, Sekulić M. A BRIEF COMMUNICATION. Exp Biol Med (Maywood) 2016; 232:1222-7. [PMID: 17895530 DOI: 10.3181/0703-bc-82] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Nutritional supplements containing soybean phytoestrogens, the isoflavones genistein (G) and daidzein (D), are increasingly used as alternative therapy for osteoporosis, cancer, and cardiovascular and other diseases with a frequency that increases with advancing age. In this study we examined the effects of subcutaneous administration of either G or D on serum lipid levels in orchidectomized (Orx) and intact (IA) middle-aged male rats, which are experimental models of andropause. Sixteen-month-old Wistar rats were treated with 10 mg/kg and 30mg/kg of either G or D. The control groups received testosterone, estradiol, or vehicle for 3 weeks, after which the total serum cholesterol (TC), low-density lipoprotein (LDL-C), high-density lipoprotein (HDL-C), and total triglycerides (TT) were measured. Compared with the matching vehicle-treated controls, the higher doses of G and D and testosterone treatment significantly ( P < 0.05) lowered the TC and lipoprotein cholesterol levels. The greatest effect was observed regarding LDL-C in both Orx and IA males after G and D treatments, in which LDL-C decreased by more than 30%. The lower isoflavone doses induced a significant cholesterol-lowering effect ( P < 0.05) only in the Orx group. Like the estradiol treatment, the higher doses of G and D increased the TT levels in both rat models by more than 50% ( P < 0.05). The lower doses of isoflavones increased TT only in the Orx group. In male middle-aged rats, injections of higher doses of G and D decreased the serum cholesterol levels, as did testosterone injection, and brought about an increase in serum triglycerides similar to that observed after estradiol treatment.
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Abstract
PURPOSE OF REVIEW The estrogenic effects of genistein, as reconfirmed by the American National Toxicology Program (USA-NTP), have led to several new clinical studies being undertaken. Here, we highlight the most relevant recent data, reporting either beneficial or adverse effects. RECENT FINDINGS Phytoestrogens are natural molecules from edible plants exhibiting estrogenic activities. Post-USA-NTP studies investigated both human and animal reproductive and other physiological issues. These studies showed that estrogens can be either deleterious for reproduction and estrogen-dependent diseases, or beneficial for those with steroid deficiencies, that is more than 50. The specific outcome depends on exposure level and on the estrogenic status of the patients exposed. Recently, it was reported that, with the industrialization of soybean process, phytoestrogen exposure dramatically increased in both humans and cattle, whereas traditional Asian soy-food-processing empirically removed isoflavones. Phytoestrogen exposure has also become more widespread with the progressive internationalization of soybean use in human and cattle food. SUMMARY Phytoestrogens should be considered as modern endocrine disruptors and studied as such.
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Affiliation(s)
- Catherine Bennetau-Pelissero
- aUniversity Bordeaux, Neurocentre Magendie, Physiopathologie de la plasticité neuronale, U862 bINSERM, Neurocentre Magendie, Physiopathologie de la plasticité neuronale, U1215 Bordeaux cBordeaux Sciences Agro, Gradignan, France
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Fang K, Dong H, Wang D, Gong J, Huang W, Lu F. Soy isoflavones and glucose metabolism in menopausal women: A systematic review and meta-analysis of randomized controlled trials. Mol Nutr Food Res 2016; 60:1602-14. [PMID: 27004555 DOI: 10.1002/mnfr.201501024] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2015] [Revised: 02/28/2016] [Accepted: 03/06/2016] [Indexed: 12/12/2022]
Abstract
SCOPE The aim of this meta-analysis was to investigate whether soy isoflavones, a type of phytoestrogen, would affect glucose homeostasis in menopausal women. METHODS AND RESULTS Studies concerning about the relationship between soy isoflavone treatment and glucose metabolism were searched on MEDLINE and WEB OF SCIENCE (updated through April 2015) and EMBASE (1990-April 2015). Seventeen randomized controlled trials (RCTs) with a total number of 1529 menopausal women were identified for meta-analysis. Soy isoflavones were found to show great significance for the improvement of glucose metabolism, though marked heterogeneity was found between studies. The overall results showed that the average difference in fasting blood glucose values between women assigned to soy isoflavones and women in placebo groups was -0.22 mmol/L (95% CI: -0.38 to -0.07 mmol/L) under a random-effects model. In addition, the effect of soy isoflavones on insulin was also significant: -0.43 μIU/mL (95% CI: -0.71 to -0.14 μIU/mL), as was the effect on homeostasis model assessment insulin resistance (HOMA-IR): -0.52 (95% CI: -0.76 to -0.28). CONCLUSION Although the results displayed a significant tendency in favor of soy isoflavones, it appears that genistein alone played an important role in improving glucose metabolism due to its low heterogeneity.
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Affiliation(s)
- Ke Fang
- Institute of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
| | - Hui Dong
- Institute of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
| | - Dingkun Wang
- Institute of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
| | - Jing Gong
- Institute of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
| | - Wenya Huang
- Institute of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
| | - Fuer Lu
- Institute of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
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Menze ET, Esmat A, Tadros MG, Khalifa AE, Abdel-Naim AB. Genistein improves sensorimotor gating: Mechanisms related to its neuroprotective effects on the striatum. Neuropharmacology 2016; 105:35-46. [PMID: 26764242 DOI: 10.1016/j.neuropharm.2016.01.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Revised: 12/21/2015] [Accepted: 01/04/2016] [Indexed: 12/15/2022]
Abstract
Huntington's disease (HD) is a neurodegenerative disorder, characterized by selective atrophy in the striatum, particularly the medium spiny GABAergic efferent neurons. This results in striatal sensorimotor gating deficits. Systemic administration of 3-nitropropionic acid (3-NPA) produces selective lesions mimicking those of HD. Males were found to be more susceptible to 3-NPA-induced neurotoxicity than females, suggesting neuroprotective effects of estrogens. Phytoestrogens, including genistein, are good estrogenic alternatives that keep their beneficial effects on non-reproductive organs and lack the potential hazardous side effects. The current study was designed to investigate the potential beneficial effects of genistein in 3-NPA-induced HD in ovariectomized rats. Results showed that 3-NPA (20 mg/kg) administration caused significant disruption of the rats' locomotor activity and prepulse inhibition. In addition, it decreased striatal ATP levels and increased oxidative stress, inflammatory and apoptotic markers with striatal focal hemorrhage and gliosis. Pretreatment with 17β-estradiol (2.5 mg/kg) or genistein (20 mg/kg) led to a significant improvement of behavioral parameters, increased ATP production, decreased oxidative stress, attenuated inflammation and apoptosis. Therefore, this study suggests potential neuroprotective effects of genistein in ovariectomized rats challenged with 3-NPA.
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Affiliation(s)
- Esther T Menze
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Ahmed Esmat
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Mariane G Tadros
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Amani E Khalifa
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Ashraf B Abdel-Naim
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt.
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Chavarro JE, Mínguez-Alarcón L, Chiu YH, Gaskins AJ, Souter I, Williams PL, Calafat AM, Hauser R. Soy Intake Modifies the Relation Between Urinary Bisphenol A Concentrations and Pregnancy Outcomes Among Women Undergoing Assisted Reproduction. J Clin Endocrinol Metab 2016; 101:1082-90. [PMID: 26815879 PMCID: PMC4803173 DOI: 10.1210/jc.2015-3473] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
CONTEXT Experimental data in rodents suggest that the adverse reproductive health effects of bisphenol A (BPA) can be modified by intake of soy phytoestrogens. Whether the same is true in humans is not known. OBJECTIVE The purpose of this study was to evaluate whether soy consumption modifies the relation between urinary BPA levels and infertility treatment outcomes among women undergoing assisted reproduction. SETTING The study was conducted in a fertility center in a teaching hospital. DESIGN We evaluated 239 women enrolled between 2007 and 2012 in the Environment and Reproductive Health (EARTH) Study, a prospective cohort study, who underwent 347 in vitro fertilization (IVF) cycles. Participants completed a baseline questionnaire and provided up to 2 urine samples in each treatment cycle before oocyte retrieval. IVF outcomes were abstracted from electronic medical records. We used generalized linear mixed models with interaction terms to evaluate whether the association between urinary BPA concentrations and IVF outcomes was modified by soy intake. MAIN OUTCOME MEASURE Live birth rates per initiated treatment cycle were measured. RESULTS Soy food consumption modified the association of urinary BPA concentration with live birth rates (P for interaction = .01). Among women who did not consume soy foods, the adjusted live birth rates per initiated cycle in increasing quartiles of cycle-specific urinary BPA concentrations were 54%, 35%, 31%, and 17% (P for trend = .03). The corresponding live birth rates among women reporting pretreatment consumption of soy foods were 38%, 42%, 47%, and 49% (P for trend = 0.35). A similar pattern was found for implantation (P for interaction = .02) and clinical pregnancy rates (P for interaction = .03) per initiated cycle, where urinary BPA was inversely related to these outcomes among women not consuming soy foods but unrelated to them among soy consumers. CONCLUSION Soy food intake may protect against the adverse reproductive effects of BPA. As these findings represent the first report suggesting a potential interaction between soy and BPA in humans, they should be further evaluated in other populations.
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Affiliation(s)
- Jorge E Chavarro
- Department of Nutrition (J.E.C., Y.-H.C., A.J.G.), Department of Epidemiology (J.E.C., A.J.G., R.H.), Department of Environmental Health (L.M.-A., R.H.), and Department of Biostatistics (P.L.W.), Harvard T. H. Chan School of Public Health, Boston, Massachusetts 02115; Channing Division of Network Medicine (J.E.C.), Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts 02115; Vincent Obstetrics and Gynecology (I.S., R.H.), Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114; and National Center for Environmental Health (A.M.C.), Centers for Disease Control and Prevention, Atlanta, Georgia 30329
| | - Lidia Mínguez-Alarcón
- Department of Nutrition (J.E.C., Y.-H.C., A.J.G.), Department of Epidemiology (J.E.C., A.J.G., R.H.), Department of Environmental Health (L.M.-A., R.H.), and Department of Biostatistics (P.L.W.), Harvard T. H. Chan School of Public Health, Boston, Massachusetts 02115; Channing Division of Network Medicine (J.E.C.), Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts 02115; Vincent Obstetrics and Gynecology (I.S., R.H.), Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114; and National Center for Environmental Health (A.M.C.), Centers for Disease Control and Prevention, Atlanta, Georgia 30329
| | - Yu-Han Chiu
- Department of Nutrition (J.E.C., Y.-H.C., A.J.G.), Department of Epidemiology (J.E.C., A.J.G., R.H.), Department of Environmental Health (L.M.-A., R.H.), and Department of Biostatistics (P.L.W.), Harvard T. H. Chan School of Public Health, Boston, Massachusetts 02115; Channing Division of Network Medicine (J.E.C.), Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts 02115; Vincent Obstetrics and Gynecology (I.S., R.H.), Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114; and National Center for Environmental Health (A.M.C.), Centers for Disease Control and Prevention, Atlanta, Georgia 30329
| | - Audrey J Gaskins
- Department of Nutrition (J.E.C., Y.-H.C., A.J.G.), Department of Epidemiology (J.E.C., A.J.G., R.H.), Department of Environmental Health (L.M.-A., R.H.), and Department of Biostatistics (P.L.W.), Harvard T. H. Chan School of Public Health, Boston, Massachusetts 02115; Channing Division of Network Medicine (J.E.C.), Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts 02115; Vincent Obstetrics and Gynecology (I.S., R.H.), Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114; and National Center for Environmental Health (A.M.C.), Centers for Disease Control and Prevention, Atlanta, Georgia 30329
| | - Irene Souter
- Department of Nutrition (J.E.C., Y.-H.C., A.J.G.), Department of Epidemiology (J.E.C., A.J.G., R.H.), Department of Environmental Health (L.M.-A., R.H.), and Department of Biostatistics (P.L.W.), Harvard T. H. Chan School of Public Health, Boston, Massachusetts 02115; Channing Division of Network Medicine (J.E.C.), Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts 02115; Vincent Obstetrics and Gynecology (I.S., R.H.), Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114; and National Center for Environmental Health (A.M.C.), Centers for Disease Control and Prevention, Atlanta, Georgia 30329
| | - Paige L Williams
- Department of Nutrition (J.E.C., Y.-H.C., A.J.G.), Department of Epidemiology (J.E.C., A.J.G., R.H.), Department of Environmental Health (L.M.-A., R.H.), and Department of Biostatistics (P.L.W.), Harvard T. H. Chan School of Public Health, Boston, Massachusetts 02115; Channing Division of Network Medicine (J.E.C.), Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts 02115; Vincent Obstetrics and Gynecology (I.S., R.H.), Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114; and National Center for Environmental Health (A.M.C.), Centers for Disease Control and Prevention, Atlanta, Georgia 30329
| | - Antonia M Calafat
- Department of Nutrition (J.E.C., Y.-H.C., A.J.G.), Department of Epidemiology (J.E.C., A.J.G., R.H.), Department of Environmental Health (L.M.-A., R.H.), and Department of Biostatistics (P.L.W.), Harvard T. H. Chan School of Public Health, Boston, Massachusetts 02115; Channing Division of Network Medicine (J.E.C.), Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts 02115; Vincent Obstetrics and Gynecology (I.S., R.H.), Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114; and National Center for Environmental Health (A.M.C.), Centers for Disease Control and Prevention, Atlanta, Georgia 30329
| | - Russ Hauser
- Department of Nutrition (J.E.C., Y.-H.C., A.J.G.), Department of Epidemiology (J.E.C., A.J.G., R.H.), Department of Environmental Health (L.M.-A., R.H.), and Department of Biostatistics (P.L.W.), Harvard T. H. Chan School of Public Health, Boston, Massachusetts 02115; Channing Division of Network Medicine (J.E.C.), Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts 02115; Vincent Obstetrics and Gynecology (I.S., R.H.), Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114; and National Center for Environmental Health (A.M.C.), Centers for Disease Control and Prevention, Atlanta, Georgia 30329
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Santos MA, Florencio-Silva R, Teixeira CP, Sasso GRDS, Marinho DS, Simões RS, Simões MJ, Carbonel AF. Effects of early and late treatment with soy isoflavones in the mammary gland of ovariectomized rats. Climacteric 2015; 19:77-84. [PMID: 26606166 DOI: 10.3109/13697137.2015.1094783] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
INTRODUCTION Soy isoflavones have been shown to be an alternative to hormone therapy at menopause, without causing side-effects such as breast cancer. However, the effects of early and late treatment with isoflavones on the mammary gland remain controversial. OBJECTIVE To investigate the effects of early and late treatment with soy isoflavones on the mammary gland of ovariectomized rats. METHODS Thirty 3-month-old rats were ovariectomized and divided equally into groups: Control, treated with vehicle solution; or with 150 mg/kg/body weight of isoflavones by gavage; or subcutaneously treated with 10 μg/kg/body weight with 17β-estradiol. Treatments started 3 days (early treatment) or 30 days (late treatment) after ovariectomy and lasted for 30 consecutive days. Thereafter, the animals were euthanized and the mammary glands were removed and processed for paraffin embedding. Sections were stained with hematoxylin and eosin for histomorphometry or subjected to immunohistochemical detection of Ki-67 and VEGF-A. RESULTS The ductal, lobular and total epithelial fractions were similar between controls and the early/late isoflavone groups, but they were significantly higher in the groups treated with estradiol. In both epithelial and stromal regions, the immunoreactivity of VEGF-A and the percentage of Ki-67-positive cells were significantly higher in the groups treated with estradiol, while they were similar in the early/late isoflavone groups and control groups. CONCLUSION Our results indicate that early and late treatment with soy isoflavones at the dose of 150 mg/kg/body weight does not show proliferative and angiogenic effects on the mammary gland of ovariectomized rats.
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Affiliation(s)
| | - R Florencio-Silva
- b Morphology and Genetics , Universidade Federal De São Paulo , São Paulo
| | - C P Teixeira
- b Morphology and Genetics , Universidade Federal De São Paulo , São Paulo
| | | | - D Souza Marinho
- b Morphology and Genetics , Universidade Federal De São Paulo , São Paulo
| | - R S Simões
- c Gynecology, Universidade De São Paulo , São Paulo , Brazil
| | - M J Simões
- b Morphology and Genetics , Universidade Federal De São Paulo , São Paulo
| | - A Ferraz Carbonel
- b Morphology and Genetics , Universidade Federal De São Paulo , São Paulo
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Fedotcheva TA, Shirokih KE, Matyushin AI, Rzheznikov VM, Kovtun VY, Shimanovskii NL. [Cytoprotective Effects of Phytoestrogen Genistein against Cancer Cells]. Biofizika 2015; 60:1151-1156. [PMID: 26841510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
In this paper we study the effect of synthetic isoflavonoid genistein against cancer HeLa cells, which contain estrogen receptors alpha but not beta, with the aim to determine the cytotoxic or cytoprotective effect of genistein. It is shown that the half maximal inhibitory concentration (IC50) value of genistein (0.2 mM) for the growth inhibition of HeLa cells is at least ten times higher than that one of tamoxifen and cisplatin--drugs, used in cervical cancer treatment. In micromolar concentrations (0.1-10 μM) genistein decreased the cytotoxic effects of cisplatin and tamoxifen. The decreased Bax mRNA expression and increased Bcl-2 mRNA expression after incubation .of the cells with genistein also demonstrate the cytoprotective, anti-apoptotic effect of genistein. Genistein, even in high concentrations, had no effect on membrane potential and calcium capacity of isolated mitochondria, without activating the opening of Ca(2+)-induced mitochondrial pore. Thus, these data demonstrate a cytoprotective effect of isoflavonoid genistein against this type of cancer cells.
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Jen SH, Wei MPS, Yin ACY. The Combinatory Effects of Glabridin and Tamoxifen on Ishikawa and MCF-7 Cell Lines. Nat Prod Commun 2015; 10:1573-1576. [PMID: 26594762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023] Open
Abstract
Estrogen replacement therapy is commonly used to replace the loss of estrogen in post-menopausal women. However, it is not suitable to be used in women taking tamoxifen as both of the drugs increase the risk of endometrial cancer. This project aimed to study the potential of using the natural compound glabridin in combination with tamoxifen as a drug for estrogen replacement therapy. Ishikawa and MCF-7 cells were used to investigate the estrogenic activities stimulated by the combination of tamoxifen and glabridin through ALP and MTT assays. The expressions of the ESR1 and bcl-2 genes have also been determined using RT-PCR. The results indicated that the combination of 1 x 10(-5)M tamoxifen and 1 x 10(-6)M glabridin exhibited estrogenic activities and suppressed cell growth in both cell lines. The relative expressions of ESR1 and bcl-2 genes indicated that the estrogenicity expressed by the combinatory drug was regulated by estrogen receptor a; however, the reduction in cell proliferation was not modulated by bcl-2 anti-apoptotic proteins. These results suggested that the combination of tamoxifen and glabridin has potential to be used as an estrogen replacement drug with a reduced risk of endometrial cancer that has arisen from the intake of tamoxifen.
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Pawlowski JW, Martin BR, McCabe GP, McCabe L, Jackson GS, Peacock M, Barnes S, Weaver CM. Impact of equol-producing capacity and soy-isoflavone profiles of supplements on bone calcium retention in postmenopausal women: a randomized crossover trial. Am J Clin Nutr 2015; 102:695-703. [PMID: 26245807 PMCID: PMC4548170 DOI: 10.3945/ajcn.114.093906] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2014] [Accepted: 07/10/2015] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Postmenopausal estrogen depletion is a major contributing factor to bone loss. Soy isoflavones have variable effects on the prevention of postmenopausal bone loss, which is possibly related to the specific isoflavone content or the variable equol-producing capacity of individuals. OBJECTIVE We aimed to determine the effects of the content of isoflavones in a soy supplement and the equol-producing ability of the individual on postmenopausal bone calcium retention. DESIGN The study was a blinded, randomized, crossover intervention trial in 24 postmenopausal women who were prescreened for their ability to convert daidzein to equol. Women were equilibrated with (41)Ca before the intervention. Interventions were 5 soy isoflavone oral supplements (2 doses of a genistein-rich soy supplement and 3 doses of mixed isoflavones in various proportions) and a bisphosphonate (risedronate). Each intervention was given sequentially for 50 d followed by a 50-d washout period. The percentage of bone calcium retention was determined from the change in urinary (41)Ca:calcium. RESULTS Interventions that ranged from 52 to 220 mg total isoflavones/d increased bone calcium retention between 3.4% and 7.6% (P < 0.05), which was a moderate effect compared with that of risedronate at 15.3% (95% CI: 7.1%, 22.7%; P = 0.0014). The most-effective soy intervention delivered 105.23 mg total isoflavones/d as genistein, daidzein, and glycitein in their natural ratios and increased bone calcium retention by 7.6% (95% CI: 4.9%, 10.2%; P < 0.0001). Genistein, at 52.85 mg/d, increased bone calcium retention by 3.4% (95% CI: 0.5%, 6.2%; P = 0.029); but there was no benefit at higher amounts (113.52 mg/d). There was no difference (P = 0.5) in bone calcium retention between equol producers and nonproducers. CONCLUSION Soy isoflavones, although not as potent as risedronate, are effective bone-preserving agents in postmenopausal women regardless of their equol-producing status, and mixed isoflavones in their natural ratios are more effective than enriched genistein. This trial was registered at clinicaltrials.gov as NCT00244907.
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Affiliation(s)
| | - Berdine R Martin
- Department of Nutrition Science, College of Health and Human Sciences
| | | | - Linda McCabe
- Department of Nutrition Science, College of Health and Human Sciences
| | - George S Jackson
- Purdue Rare Isotope Measurement Laboratory, Department of Physics, Purdue University, West Lafayette, IN
| | - Munro Peacock
- Indiana University School of Medicine, Indianapolis, IN; and
| | - Stephen Barnes
- Department of Pharmacology and Toxicology, University of Alabama at Birmingham, Birmingham, AL
| | - Connie M Weaver
- Department of Nutrition Science, College of Health and Human Sciences,
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41
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Liu Y, Hilakivi-Clarke L, Zhang Y, Wang X, Pan YX, Xuan J, Fleck SC, Doerge DR, Helferich WG. Isoflavones in soy flour diet have different effects on whole-genome expression patterns than purified isoflavone mix in human MCF-7 breast tumors in ovariectomized athymic nude mice. Mol Nutr Food Res 2015; 59:1419-30. [PMID: 25820259 PMCID: PMC5763549 DOI: 10.1002/mnfr.201500028] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Revised: 03/04/2015] [Accepted: 04/07/2015] [Indexed: 12/31/2022]
Abstract
SCOPE Soy flour diet (MS) prevented isoflavones from stimulating MCF-7 tumor growth in athymic nude mice, indicating that other bioactive compounds in soy can negate the estrogenic properties of isoflavones. The underlying signal transduction pathways to explain the protective effects of soy flour consumption were studied here. METHODS AND RESULTS Ovariectomized athymic nude mice inoculated with MCF-7 human breast cancer cells were fed either Soy flour diet (MS) or purified isoflavone mix diet (MI), both with equivalent amounts of genistein. Positive controls received estradiol pellets and negative controls received sham pellets. GeneChip Human Genome U133 Plus 2.0 Array platform was used to evaluate gene expressions, and results were analyzed using bioinformatics approaches. Tumors in MS-fed mice exhibited higher expression of tumor growth suppressing genes ATP2A3 and BLNK and lower expression of oncogene MYC. Tumors in MI-fed mice expressed a higher level of oncogene MYB and a lower level of MHC-I and MHC-II, allowing tumor cells to escape immunosurveillance. MS-induced gene expression alterations were predictive of prolonged survival among estrogen-receptor-positive breast cancer patients, whilst MI-induced gene changes were predictive of shortened survival. CONCLUSION Our findings suggest that dietary soy flour affects gene expression differently than purified isoflavones, which may explain why soy foods prevent isoflavones-induced stimulation of MCF-7 tumor growth in athymic nude mice.
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Affiliation(s)
- Yunxian Liu
- Department of Food Science and Human Nutrition, University of Illinois, Urbana-Champaign, IL 61801, USA
| | - Leena Hilakivi-Clarke
- Department of Oncology, Georgetown University Medical Center, Washington, DC 20057, USA
| | - Yukun Zhang
- Department of Food Science and Human Nutrition, University of Illinois, Urbana-Champaign, IL 61801, USA
| | - Xiao Wang
- Bradley Department of Electrical and Computer Engineering, Virginia Polytechnic Institute and State University, Arlington, VA 22203, USA
| | - Yuan-xiang Pan
- Department of Food Science and Human Nutrition, University of Illinois, Urbana-Champaign, IL 61801, USA
| | - Jianhua Xuan
- Bradley Department of Electrical and Computer Engineering, Virginia Polytechnic Institute and State University, Arlington, VA 22203, USA
| | - Stefanie C. Fleck
- Division of Biochemical Toxicology, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR 72079, USA
| | - Daniel R. Doerge
- Division of Biochemical Toxicology, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR 72079, USA
| | - William G. Helferich
- Department of Food Science and Human Nutrition, University of Illinois, Urbana-Champaign, IL 61801, USA
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Li G, Xing XY, Zhang MS, Shi JJ, Deng XH, Sun GB, Sun XB. [Phytoestrogens in application prospect of treatment of myocardial ischemia/reperfusion injury]. Zhongguo Zhong Yao Za Zhi 2015; 40:3132-3136. [PMID: 26790280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Reperfusion is the most effective treatment for acute myocardial infarction, markedly reducing mortality and morbidity. Reperfusion however induces necrotic and apoptotic damages to cardiomyocytes, that were viable prior to reperfusion, a process called myocardial ischemia/reperfusion injury(MI/RI). Over the past 30 years, hundreds of experimental interventions (both pharmacologic and nonpharmacologic) have been reported to protect the ischemic myocardium in experimental animals; however, with the exception of early reperfusion, none has been translated into clinical practice. The population-based survey assessed men have about twice the total incidence of morbidity and mortality of women, and the sex gap in morbidity tends to diminish after age 45 years. So hormone replacement therapy (HRT) is given to treat the MI/RI, and lots of studies shows that the side effect is greater for estrogen, compared with phyestrogen. In this article, we review the important pathogenesis of myocardial ischemia reperfusion injury, the prevention and limitations of HRT. And we highlight the mechanism of phyestrogens treatment the MI/RI in experiment. The aim is to provide the theoretically new way of develop the safe and effective products for the researchers.
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Andreoli MF, Stoker C, Rossetti MF, Alzamendi A, Castrogiovanni D, Luque EH, Ramos JG. Withdrawal of dietary phytoestrogens in adult male rats affects hypothalamic regulation of food intake, induces obesity and alters glucose metabolism. Mol Cell Endocrinol 2015; 401:111-9. [PMID: 25486512 DOI: 10.1016/j.mce.2014.12.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Revised: 11/28/2014] [Accepted: 12/01/2014] [Indexed: 11/19/2022]
Abstract
The absence of phytoestrogens in the diet during pregnancy has been reported to result in obesity later in adulthood. We investigated whether phytoestrogen withdrawal in adult life could alter the hypothalamic signals that regulate food intake and affect body weight and glucose homeostasis. Male Wistar rats fed from conception to adulthood with a high phytoestrogen diet were submitted to phytoestrogen withdrawal by feeding a low phytoestrogen diet, or a high phytoestrogen-high fat diet. Withdrawal of dietary phytoestrogens increased body weight, adiposity and energy intake through an orexigenic hypothalamic response characterized by upregulation of AGRP and downregulation of POMC. This was associated with elevated leptin and T4, reduced TSH, testosterone and estradiol, and diminished hypothalamic ERα expression, concomitant with alterations in glucose tolerance. Removing dietary phytoestrogens caused manifestations of obesity and diabetes that were more pronounced than those induced by the high phytoestrogen-high fat diet intake.
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Affiliation(s)
- María Florencia Andreoli
- Departamento de Bioquímica Clínica y Cuantitativa, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina; Laboratorio de Endocrinología y Tumores Hormonodependientes, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina
| | - Cora Stoker
- Departamento de Bioquímica Clínica y Cuantitativa, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina; Laboratorio de Endocrinología y Tumores Hormonodependientes, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina
| | - María Florencia Rossetti
- Departamento de Bioquímica Clínica y Cuantitativa, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina; Laboratorio de Endocrinología y Tumores Hormonodependientes, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina
| | - Ana Alzamendi
- Unidad de Neuroendocrinología, Instituto Multidisciplinario de Biología Celular IMBICE (CONICET-CICPBA), La Plata, Argentina
| | - Daniel Castrogiovanni
- Unidad de Neuroendocrinología, Instituto Multidisciplinario de Biología Celular IMBICE (CONICET-CICPBA), La Plata, Argentina
| | - Enrique H Luque
- Laboratorio de Endocrinología y Tumores Hormonodependientes, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina
| | - Jorge Guillermo Ramos
- Departamento de Bioquímica Clínica y Cuantitativa, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina; Laboratorio de Endocrinología y Tumores Hormonodependientes, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina.
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Abstract
Tissue-selective estrogen complex (TSEC), which combines a selective estrogen receptor modulator (SERM) with one or more estrogens, is a novel approach to menopausal therapy. It has been demonstrated that the phytoestrogen genistein (GEN) exhibits mixed estrogen receptor agonist and antagonist activity, suggesting that GEN may have potential for use as a natural SERM. We evaluated, for the first time, the effects of GEN, conjugated estrogens (CE), and their pairing effects as a TSEC treatment on estrogen-induced endometrial hyperplasia and metabolic dysfunction in ovariectomized (OVX) mice fed a high-fat diet. CE replacement prevented fat accumulation in the adipose tissue and liver, improved glucose homeostasis, and induced endometrial hyperplasia in OVX mice. GEN at 100 mg/kg showed CE mimetic effects in preventing ovariectomy-induced metabolic dysfunctions without endometrial stimulation. Combination treatments with CE and GEN prevented metabolic dysfunctions more strongly than CE alone, but at both low and high doses, GEN did not reverse CE-induced endometrial hyperplasia. In addition, we found that in a TSEC regimen, a typical SERM raloxifene maintains the metabolic benefits of CE while simultaneously protecting the endometrium in OVX mice. These findings indicate that GEN acts as an estrogen agonist in metabolic regulation, but has no SERM function in the uteri of OVX mice.
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Affiliation(s)
- Jun Ho Kim
- Department of Food and Biotechnology, Korea University, Sejong, 339-700, South Korea
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Dueregger A, Heidegger I, Ofer P, Perktold B, Ramoner R, Klocker H, Eder IE. The use of dietary supplements to alleviate androgen deprivation therapy side effects during prostate cancer treatment. Nutrients 2014; 6:4491-519. [PMID: 25338271 PMCID: PMC4210931 DOI: 10.3390/nu6104491] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2014] [Revised: 09/07/2014] [Accepted: 09/19/2014] [Indexed: 01/17/2023] Open
Abstract
Prostate cancer (PCa), the most commonly diagnosed cancer and second leading cause of male cancer death in Western societies, is typically androgen-dependent, a characteristic that underlies the rationale of androgen deprivation therapy (ADT). Approximately 90% of patients initially respond to ADT strategies, however many experience side effects including hot flashes, cardiotoxicity, metabolic and musculoskeletal alterations. This review summarizes pre-clinical and clinical studies investigating the ability of dietary supplements to alleviate adverse effects arising from ADT. In particular, we focus on herbal compounds, phytoestrogens, selenium (Se), fatty acids (FA), calcium, and Vitamins D and E. Indeed, there is some evidence that calcium and Vitamin D can prevent the development of osteoporosis during ADT. On the other hand, caution should be taken with the antioxidants Se and Vitamin E until the basis underlying their respective association with type 2 diabetes mellitus and PCa tumor development has been clarified. However, many other promising supplements have not yet been subjected large-scale clinical trials making it difficult to assess their efficacy. Given the demographic trend of increased PCa diagnoses and dependence on ADT as a major therapeutic strategy, further studies are required to objectively evaluate these supplements as adjuvant for PCa patients receiving ADT.
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Affiliation(s)
- Andrea Dueregger
- Division of Experimental Urology, Department of Urology, Innsbruck Medical University, Innsbruck, A-6020 Austria.
| | - Isabel Heidegger
- Division of Experimental Urology, Department of Urology, Innsbruck Medical University, Innsbruck, A-6020 Austria.
| | - Philipp Ofer
- Division of Experimental Urology, Department of Urology, Innsbruck Medical University, Innsbruck, A-6020 Austria.
| | - Bernhard Perktold
- Department of Dietetics, University of Applied Sciences Tyrol, Innsbruck A-6020, Austria.
| | - Reinhold Ramoner
- Department of Dietetics, University of Applied Sciences Tyrol, Innsbruck A-6020, Austria.
| | - Helmut Klocker
- Division of Experimental Urology, Department of Urology, Innsbruck Medical University, Innsbruck, A-6020 Austria.
| | - Iris E Eder
- Division of Experimental Urology, Department of Urology, Innsbruck Medical University, Innsbruck, A-6020 Austria.
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van Breemen RB, Yuan Y, Banuvar S, Shulman LP, Qiu X, Alvarenga RFR, Chen SN, Dietz BM, Bolton JL, Pauli GF, Krause E, Viana M, Nikolic D. Pharmacokinetics of prenylated hop phenols in women following oral administration of a standardized extract of hops. Mol Nutr Food Res 2014; 58:1962-9. [PMID: 25045111 PMCID: PMC4265473 DOI: 10.1002/mnfr.201400245] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2014] [Revised: 06/06/2014] [Accepted: 06/13/2014] [Indexed: 02/02/2023]
Abstract
SCOPE Women seeking alternatives to hormone-replacement therapy for menopausal symptoms often try botanical dietary supplements containing extracts of hops (Humulus lupulus L.). Hops contain 8-prenylnaringenin (8-PN), a potent phytoestrogen, the related flavanones 6-prenylnaringenin and isoxanthohumol (IX), and the prenylated chalcone xanthohumol (XN). METHODS AND RESULTS After chemically and biologically standardizing an extract of spent hops to these marker compounds, an escalating dose study was carried out in menopausal women to evaluate safety and pharmacokinetics. 8-PN, 6-prenylnaringenin, IX, and XN, sex hormones, and prothrombin time were determined in blood samples and/or 24 h urine samples. There was no effect on sex hormones or blood clotting. The maximum serum concentrations of the prenylated phenols were dose-dependent and were reached from 2 to 7 h, indicating slow absorption. The marker compounds formed glucuronides that were found in serum and urine. Secondary peaks at 5 h in the serum concentration-time curves indicated enterohepatic recirculation. The serum concentration-time curves indicated demethylation of IX to form 8-PN and cyclization of XN to IX. Slow absorption and enterohepatic recirculation contributed to half-lives exceeding 20 h. CONCLUSION This human study indicated long half-lives of the estrogenic and proestrogenic prenylated phenols in hops but no acute toxicity.
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Affiliation(s)
- Richard B. van Breemen
- UIC/NIH Center for Botanical Dietary Supplements Research, University of Illinois College of Pharmacy, 833 South Wood Street, Chicago, IL 60612
| | - Yang Yuan
- UIC/NIH Center for Botanical Dietary Supplements Research, University of Illinois College of Pharmacy, 833 South Wood Street, Chicago, IL 60612
| | | | | | - Xi Qiu
- UIC/NIH Center for Botanical Dietary Supplements Research, University of Illinois College of Pharmacy, 833 South Wood Street, Chicago, IL 60612
| | - René F. Ramos Alvarenga
- UIC/NIH Center for Botanical Dietary Supplements Research, University of Illinois College of Pharmacy, 833 South Wood Street, Chicago, IL 60612
| | - Shao-Nong Chen
- UIC/NIH Center for Botanical Dietary Supplements Research, University of Illinois College of Pharmacy, 833 South Wood Street, Chicago, IL 60612
| | - Birgit M. Dietz
- UIC/NIH Center for Botanical Dietary Supplements Research, University of Illinois College of Pharmacy, 833 South Wood Street, Chicago, IL 60612
| | - Judy L. Bolton
- UIC/NIH Center for Botanical Dietary Supplements Research, University of Illinois College of Pharmacy, 833 South Wood Street, Chicago, IL 60612
| | - Guido F. Pauli
- UIC/NIH Center for Botanical Dietary Supplements Research, University of Illinois College of Pharmacy, 833 South Wood Street, Chicago, IL 60612
| | - Elizabeth Krause
- UIC/NIH Center for Botanical Dietary Supplements Research, University of Illinois College of Pharmacy, 833 South Wood Street, Chicago, IL 60612
| | | | - Dejan Nikolic
- UIC/NIH Center for Botanical Dietary Supplements Research, University of Illinois College of Pharmacy, 833 South Wood Street, Chicago, IL 60612
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Harmon B, Morimoto Y, Beckford F, Franke AA, Stanczyk FZ, Maskarinec G. Oestrogen levels in serum and urine of premenopausal women eating low and high amounts of meat. Public Health Nutr 2014; 17:2087-93. [PMID: 24050121 PMCID: PMC4231431 DOI: 10.1017/s1368980013002553] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
OBJECTIVE Based on the hypothesis that high-meat diets may increase breast cancer risk through hormonal pathways, the present analysis compared oestrogens in serum and urine by meat-eating status. DESIGN Intervention with repeated measures. SETTING Two randomized soya trials (BEAN1 and BEAN2) among premenopausal healthy women. SUBJECTS BEAN1 participants completed seven unannounced 24 h dietary recalls and donated five blood and urine samples over 2 years. BEAN2 women provided seven recalls and three samples over 13 months. Serum samples were analysed for oestrone (E₁) and oestradiol (E₂) using RIA. Nine oestrogen metabolites were measured in urine by LC-MS. Semi-vegetarians included women who reported consuming <30 g of red meat, poultry and fish daily, and pescatarians those who reported consuming <20 g of meat/poultry but >10 g of fish daily. All other women were classified as non-vegetarians. We applied mixed models to compute least-square means by vegetarian status adjusted for potential confounders. RESULTS The mean age of the 272 participants was 41·9 (SD 4·5) years. Serum E₁ (85 v. 100 pg/ml, P = 0·04) and E₂ (140 v. 154 pg/ml, P = 0·04) levels were lower in the thirty-seven semi-vegetarians than in the 235 non-vegetarians. The sum of the nine urinary oestrogen metabolites (183 v. 200 pmol/mg creatinine, P = 0·27) and the proportions of individual oestrogens and pathways did not differ by meat-eating status. Restricting the models to the samples collected during the luteal phase strengthened the associations. CONCLUSIONS Given the limitations of the study, the lower levels of serum oestrogens in semi-vegetarians than non-vegetarians need confirmation in larger populations.
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Affiliation(s)
- Brook Harmon
- University of Hawaii Cancer Center, Honolulu, HI
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48
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Ferguson JF, Ryan MF, Gibney ER, Brennan L, Roche HM, Reilly MP. Dietary isoflavone intake is associated with evoked responses to inflammatory cardiometabolic stimuli and improved glucose homeostasis in healthy volunteers. Nutr Metab Cardiovasc Dis 2014; 24:996-1003. [PMID: 24875672 PMCID: PMC4130742 DOI: 10.1016/j.numecd.2014.03.010] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2013] [Revised: 03/20/2014] [Accepted: 03/24/2014] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND AIMS Consumption of foods that modulate inflammatory stress in genetically-prone individuals may influence development of cardiometabolic diseases. Isoflavones in soy-derived foods function as phytoestrogens, have antioxidant and anti-inflammatory activity, inhibit protein-tyrosine kinase activity, and may be atheroprotective. We examined the relationship between soy food consumption and inflammatory responses to endotoxemia, postprandial responses to oral lipid tolerance test (OLTT), and insulin sensitivity from frequently sampled intravenous tolerance tests (FSIGTT). METHODS AND RESULTS We administered low-dose endotoxin (LPS 1 ng/kg) to induce transient endotoxemia in young, healthy volunteers (N = 215) of African (AA), and European (EA) ancestry as part of the GENE Study. We further supported these findings in two independent samples: the MECHE Study and NHANES. Soy food consumption was a significant predictor of peak cytokine response following LPS. Individuals with moderate-high (>1.48 mg/day, N = 65) vs. low-no (<1.48 mg/day, N = 150) isoflavone consumption had significantly higher tumor necrosis factor alpha (TNFα) post-LPS (AUC, P = 0.009). Further, high-isoflavone consumers were protected against inflammation-induced decline in insulin sensitivity (SI) in GENE. We observed significant differences by soy consumption in the interferon gamma (IFNγ) response to OLTT, and the insulin response to OGTT in MECHE, as well as significantly lower fasting insulin, and 2-hour glucose post-OGTT in EA NHANES subjects. CONCLUSION We demonstrate that soy consumption may influence inflammatory and metabolic responses. In research of nutritional exposures, measuring evoked phenotypes may be more informative than describing resting characteristics. The GENE Study was registered under NCT00953667 and the MECHE Study under NCT01172951, both at clinicaltrials.gov.
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Affiliation(s)
- J F Ferguson
- Cardiovascular Institute, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA.
| | - M F Ryan
- UCD Institute of Food & Health, University College Dublin, Ireland
| | - E R Gibney
- UCD Institute of Food & Health, University College Dublin, Ireland
| | - L Brennan
- UCD Institute of Food & Health, University College Dublin, Ireland
| | - H M Roche
- UCD Institute of Food & Health, University College Dublin, Ireland; Conway Institute, School of Public Health and Population Sciences, University College Dublin, Ireland
| | - M P Reilly
- Cardiovascular Institute, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
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49
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Kim MH, Choi YY, Han JM, Lee HS, Hong SB, Lee SG, Yang WM. Ameliorative effects of Schizandra chinensis on osteoporosis via activation of estrogen receptor (ER)-α/-β. Food Funct 2014; 5:1594-601. [PMID: 24881676 DOI: 10.1039/c4fo00133h] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2023]
Abstract
Estrogen deficiency in menopausal women is the main cause of osteoporosis. Phytoestrogen could be a suitable candidate for treatment of post-menopausal osteoporosis. Recent studies showed that S. chinensis contains several lignans, which may be phytoestrogen. In this study, we investigated the ameliorative effects of S. chinensis on post-menopausal osteoporosis. 30% ethanol extract of S. chinensis (SC) was administered orally for 6 weeks after 7 weeks of ovariectomized-induced osteoporosis. Bone mineral density was significantly increased following increased serum osteocalcin levels by SC treatment. Histological analysis showed that SC reduced the increased growth plate of the epiphyseal plate in femur. In addition, pores within bone marrow cells filling the lateral and medial epicondyle were decreased. Serum estradiol concentration was significantly increased in the SC-treated group. The expressions of estrogen receptor-α and -β were increased in uterus and MCF-7 breast cancer cells by SC treatment. And two transcriptions of proto-oncogenes, c-fos and c-Jun, were suppressed by treatment of SC. From these data, we propose that S. chinensis attenuates post-menopausal osteoporosis with its phytoestrogenic effects. S. chinensis may have the potential to be used as an alternative for treatment of osteoporosis.
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Affiliation(s)
- Mi Hye Kim
- College of Korean Medicine and Institute of Korean Medicine, Kyung Hee University, 1 Hoegi-dong, Dongdaemun-gu, Seoul 130-701, Korea.
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50
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Lima SMRR, Bernardo BFA, Yamada SS, Reis BF, da Silva GMD, Galvão MAL. Effects of Glycine max (L.) Merr. soy isoflavone vaginal gel on epithelium morphology and estrogen receptor expression in postmenopausal women: a 12-week, randomized, double-blind, placebo-controlled trial. Maturitas 2014; 78:205-11. [PMID: 24856055 DOI: 10.1016/j.maturitas.2014.04.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2014] [Revised: 04/02/2014] [Accepted: 04/05/2014] [Indexed: 11/17/2022]
Abstract
OBJECTIVE Evaluate the effects of vaginal administration of isoflavones derived from Glycine max (L.) Merr. as a treatment option for vaginal atrophy, on the morphology and expression of estrogen receptors in vaginal epithelium of postmenopausal women. METHODS The double-blind, randomized, placebo-controlled, clinical trial. Sixty women were treated for 12 weeks with isoflavone vaginal gel 4% (1g/day) and a placebo gel. After 4 and 12 weeks, the vaginal atrophy symptoms were classified at none, mild, moderate and severe and the vaginal cytology were taken to determine the maturation value. Vaginal pH was measured at the beginning and end of therapy. Microbiopsies in vaginal fornix were performed before the treatment and after 12 weeks of treatment. RESULTS Isoflavone vaginal gel was effective for relief of vaginal dryness and dyspareunia symptons and an increase in the intermediate and superficial cells was noted. The vaginal pH in the isoflavone group was 7.1 at baseline and 5.4 after 12 weeks, whereas in the placebo group there was no significant change. A significant increase in thickness after treatment was detected in the Isoflavone Group. The percentage of estrogen receptor positive cells in vaginal epithelium for the Isoflavone Group ranged from 58.5% at the beginning of treatment to 82.6% after 12 weeks. These results were superior to placebo gel. CONCLUSION Glycine max (L.) Merr. at 4% vaginal gel on a daily basis in postmenopausal women led to improvements in vaginal atrophy symptoms, maturation values, vaginal pH, morphology and expression of estrogen receptors in vaginal epithelium. Isoflavones proved good treatment options for relief of vulvovaginal atrophy.
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Affiliation(s)
- Sônia Maria Rolim Rosa Lima
- Faculdade de Ciências Médicas da Santa Casa de São Paulo, R. Dr. Cesário Mota Júnior, 112, 01221-020 São Paulo, Brazil
| | | | - Silvia Saito Yamada
- Faculdade de Ciências Médicas da Santa Casa de São Paulo, R. Dr. Cesário Mota Júnior, 112, 01221-020 São Paulo, Brazil
| | - Benedito Fabiano Reis
- Faculdade de Ciências Médicas da Santa Casa de São Paulo, R. Dr. Cesário Mota Júnior, 112, 01221-020 São Paulo, Brazil
| | | | - Maria Antonieta Longo Galvão
- Faculdade de Ciências Médicas da Santa Casa de São Paulo, R. Dr. Cesário Mota Júnior, 112, 01221-020 São Paulo, Brazil
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