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Mitsunami M, Mínguez-Alarcón L, Florio AA, Wang S, Attaman JA, Souter I, Hauser R, Chavarro JE. Intake of soy products and soy isoflavones in relation to ovarian reserve. Fertil Steril 2023; 119:1017-1029. [PMID: 36871859 PMCID: PMC10225319 DOI: 10.1016/j.fertnstert.2023.02.039] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Revised: 02/18/2023] [Accepted: 02/27/2023] [Indexed: 03/06/2023]
Abstract
OBJECTIVE To investigate the association between intake of soy food and isoflavone with ovarian reserve. Previous studies suggest on the relationship between soy intake and human fertility are inconsistent. Some clinical studies suggest that soy and phytoestrogens may not be deleterious to reproduction and may even be beneficial in couples undergoing infertility treatment. However, no studies have evaluated the relationship between soy or isoflavone intake with markers of ovarian reserve other than follicle-stimulating hormone (FSH). DESIGN Cross-sectional study. SETTING An academic fertility center. PATIENT(S) Patients presenting to an academic fertility center between 2007 and 2019 were invited to participate in the Environment and Reproductive Health Study. INTERVENTION(S) Six hundred and sixty seven participants reported their soy food intake and had an antral follicle count (AFC) assessment. Intake of 15 soy-based foods during the previous 3 months was obtained at baseline and intake of isoflavone was estimated. Participants were divided into 5 groups based on soy food and isoflavone intake considering those who did not consume soy as the reference group. MAIN OUTCOME MEASURE(S) Ovarian reserve was assessed using AFC as the primary outcome measure, with antimüllerian hormone (AMH) and FSH as secondary outcome measures. The AFC was measured on the third day of the menstrual cycle. Moreover, FSH and AMH levels were measured in blood samples obtained on the third day and the follicular phase of the menstrual cycle. To evaluate the association between soy intake and ovarian reserve, we used Poisson regression models for AFC and quantile regression models for AMH and day 3 FSH levels by adjusting for confounders. RESULT(S) Participants had a median age of 35.0 years. The median intake of soy was 0.09 servings/day and isoflavones was 1.78 mg/day. Moreover, AFC, AMH, and FSH were unrelated to soy intake in crude analyses. We found no association between soy food intake with AFC or day 3 FSH level in multivariable models. However, participants in the highest category of soy food intake had significantly low AMH levels (-1.16, 95% confidence interval: -1.92, -0.41). Soy intake had no association with AFC, AMH, or FSH in sensitivity analyses that included using different cutoff points of soy intake, excluding participants in the highest 2.5 percentile of intake, and additional statistical adjustment for dietary patterns. CONCLUSION(S) The results of this study are not consistent with a strong positive or inverse association of soy or isoflavone intakes within the observed range of intake, which substantially overlaps with that in the general population of the United States as well as the ovarian reserve among individuals presenting to fertility centers.
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Affiliation(s)
- Makiko Mitsunami
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Lidia Mínguez-Alarcón
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts; Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
| | - Andrea A Florio
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Siwen Wang
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Jill A Attaman
- Fertility Center, Vincent Department of Obstetrics and Gynecology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Irene Souter
- Fertility Center, Vincent Department of Obstetrics and Gynecology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Russ Hauser
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts; Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts; Fertility Center, Vincent Department of Obstetrics and Gynecology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Jorge E Chavarro
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, Massachusetts; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts; Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts.
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2
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Woyka J. Consensus statement for non-hormonal based treatments for menopausal symptoms. Post Reprod Health 2020; 26:137-141. [PMID: 32746689 DOI: 10.1177/2053369120930508] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Affiliation(s)
- Jane Woyka
- Northwick Park Hospital Menopause Clinical and Research Unit, NW London Hospitals NHS Trust, Middlesex, UK
- The Harrow Health Care Centre, The Clementine Churchill Hospital, Middlesex, UK
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3
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Yeo W, Pang E, Liem GS, Suen JJS, Ng RYW, Yip CCH, Li L, Yip CHW, Mo FKF. Menopausal symptoms in relationship to breast cancer-specific quality of life after adjuvant cytotoxic treatment in young breast cancer survivors. Health Qual Life Outcomes 2020; 18:24. [PMID: 32041627 PMCID: PMC7011454 DOI: 10.1186/s12955-020-1283-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Accepted: 02/05/2020] [Indexed: 11/10/2022] Open
Abstract
Introductions For young premenopausal breast cancer patients, adjuvant chemotherapy may cause menstrual disruptions and premature menopause, which may in turn impair their quality of life (QoL). In this study among young breast cancer survivors who have undergone adjuvant chemotherapy, the objectives were to assess post-treatment menopausal symptoms and their associated factors, and to correlate these symptoms with breast cancer-specific QoL. Methods The study population included premenopausal young Chinese women with early-stage breast cancer who had undergone adjuvant chemotherapy between 3 and 10 years prior to enrolling into this study. At study entry, patients’ characteristics and clinical features were collected; each patient had detail menstrual history collected and each filled in MENQOL and FACT-B + 4 questionnaires. Results Two hundred eighty eligible patients were recruited. For adjuvant chemotherapy, 92% received anthracyclines and 28% received taxanes; 76% received adjuvant tamoxifen. At a median of 5.0 years from initial cancer diagnosis, 49 and 11% had become post- and peri-menopausal respectively. MENQOL at study entry revealed that physical domain score was worse in overweight/obese patients (mean scores for underweight/normal vs overweight/obese: 2.65 vs 2.97, p = 0.0162). Vasomotor domain score was worse in those who received taxanes or tamoxifen (taxane vs non-taxane: 2.91 vs. 2.35, p = 0.0140; tamoxifen vs no tamoxifen: 2.75 vs. 2.34, p = 0.0479). Sexual domain score was worse among those who had become peri/post-menopausal (peri/postmenopausal vs premenopausal: 2.82 vs. 2.29, p = 0.0229). On the other hand, patients who utilized traditional Chinese medicine had significantly worse scores for vasomotor, psychosocial and physical domains. Further, there was a significant association between MENQOL scores and FACT-B + 4 scores; less severe symptoms in the MENQOL domains were associated with better QoL scores in FACT-B + 4 physical, functional, psychosocial and emotional well-being, Breast Cancer Subscale, Arm Subscale and FACT-B total score. Conclusion Among premenopausal breast cancer women who had undergone adjuvant chemotherapy, those who had received taxanes or tamoxifen, were overweight/obese and utilized traditional Chinese medicine had more severe menopausal symptoms. Patients who experienced worse menopausal symptoms were found to have worse breast cancer-specific QoL. Interventional studies with an aim to alleviate menopausal symptoms are warranted to assess if overall QoL of these patients could be improved. Trial registration Not applicable.
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Affiliation(s)
- Winnie Yeo
- Department of Clinical Oncology, Prince of Wales Hospital, Sir YK Pao Centre for Cancer, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, NT, Hong Kong, Hong Kong Special Administrative Region, China. .,Hong Kong Cancer Institute, State Key Laboratory of Translational Oncology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, Hong Kong Special Administrative Region, China.
| | - Elizabeth Pang
- Department of Clinical Oncology, Prince of Wales Hospital, Sir YK Pao Centre for Cancer, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, NT, Hong Kong, Hong Kong Special Administrative Region, China.,Hong Kong Cancer Institute, State Key Laboratory of Translational Oncology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, Hong Kong Special Administrative Region, China
| | - Giok S Liem
- Department of Clinical Oncology, Prince of Wales Hospital, Sir YK Pao Centre for Cancer, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, NT, Hong Kong, Hong Kong Special Administrative Region, China
| | - Joyce J S Suen
- Department of Clinical Oncology, Prince of Wales Hospital, Sir YK Pao Centre for Cancer, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, NT, Hong Kong, Hong Kong Special Administrative Region, China
| | - Rita Y W Ng
- Department of Clinical Oncology, Prince of Wales Hospital, Sir YK Pao Centre for Cancer, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, NT, Hong Kong, Hong Kong Special Administrative Region, China
| | - Christopher C H Yip
- Department of Clinical Oncology, Prince of Wales Hospital, Sir YK Pao Centre for Cancer, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, NT, Hong Kong, Hong Kong Special Administrative Region, China
| | - Leung Li
- Department of Clinical Oncology, Prince of Wales Hospital, Sir YK Pao Centre for Cancer, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, NT, Hong Kong, Hong Kong Special Administrative Region, China
| | - Claudia H W Yip
- Department of Clinical Oncology, Prince of Wales Hospital, Sir YK Pao Centre for Cancer, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, NT, Hong Kong, Hong Kong Special Administrative Region, China
| | - Frankie K F Mo
- Department of Clinical Oncology, Prince of Wales Hospital, Sir YK Pao Centre for Cancer, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, NT, Hong Kong, Hong Kong Special Administrative Region, China.,Hong Kong Cancer Institute, State Key Laboratory of Translational Oncology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, Hong Kong Special Administrative Region, China
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4
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Emaminia F, Rezaei A, Badehnoosh B, Ramezani R, Shabani M. The effects of Elaeagnus angustifolia L. whole fruit on the sex hormone profile in menopausal women: A double-blind, randomized, placebo-controlled study. JOURNAL OF ETHNOPHARMACOLOGY 2020; 246:112229. [PMID: 31513839 DOI: 10.1016/j.jep.2019.112229] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 08/18/2019] [Accepted: 09/08/2019] [Indexed: 06/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Menopause is a product of interrupted ovarian activity and decrease in its estradiol production. Herbal medicines as an alternative to hormone therapy are increasingly used by menopausal women. Elaeagnus angustifolia L. (Senjed in Persian) is a well-known herbal remedy with various therapeutic effects according to Iranian traditional medicine which is recommended to relieve the menopausal side effects. The aim of present study was to evaluate the effects of oral intake of whole fruit powder of E. angustifolia on the sex hormones profile in menopausal women. MATERIALS AND METHODS In present double-blind randomized placebo-controlled trial, 58 eligible women who were referred to Kamali Women Hospital (Karaj, Iran, 2017) were randomly assigned into herbal medicine (15 g E. angustifolia) and placebo (7.5 g cornstarch +7.5 g isomalt) groups. Initially and after 10 weeks of the treatment, serum levels of estradiol, progesterone, testosterone, follicle-stimulating hormone (FSH) and luteinizing hormone (LH) hormones were measured. RESULTS According to between-group analyses, the changes in the studied parameters were not significant between herbal medicine and placebo groups, except for joint pain that improved significantly in herbal medicine group. However, by within-group analysis the levels of FSH and FSH to testosterone showed a significant increase, whereas the level of progesterone decreased significantly after 10 weeks of E. angustifolia consumption. CONCLUSIONS The improvement of the sex hormone profile was not in a full accordance with Iranian folklore after E. angustifolia consumption in the present menopausal participants. However, considering a strong belief on the beneficial effects of E. angustifolia in Iranian folklore, a long-term studies of larger group participants are needed to evaluate the efficacy.
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Affiliation(s)
| | - Arezou Rezaei
- School of Biology, Damghan University, Damghan, Iran; Institute of Biological Sciences, Damghan University, Damghan, Iran.
| | - Bita Badehnoosh
- Department of Gynecology and Obstetrics, Faculty of Medical Science, Alborz University of Medical Science, Karaj, Iran; Dietary Supplement and Probiotic Research Center, Alborz University of Medical Science, Karaj, Iran.
| | - Rohollah Ramezani
- Department of Statistic, Faculty of Mathematics and Computer Science, Damghan University, Damghan, Iran.
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5
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Boivin JM. HTA et traitements non-hormonaux de la ménopause. Presse Med 2019; 48:1284-1287. [DOI: 10.1016/j.lpm.2019.07.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Accepted: 07/01/2019] [Indexed: 10/26/2022] Open
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6
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Jargin SV. Scientific Papers and Patents on Substances with Unproven Effects. Part 2. RECENT PATENTS ON DRUG DELIVERY & FORMULATION 2019; 13:160-173. [PMID: 31424374 PMCID: PMC7011683 DOI: 10.2174/1872211313666190819124752] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 07/19/2019] [Accepted: 08/01/2019] [Indexed: 12/03/2022]
Abstract
Several examples are discussed in this review, where substances without proven effects were proposed for practical use within the scope of evidence-based medicines. The following is discussed here: generalizations of the hormesis concept and its use in support of homeopathy; phytoestrogens and soy products potentially having feminizing effects; glycosaminoglycans for the treatment of osteoarthritis and possibilities of their replacement by diet modifications; flavonoids recommended for the treatment of chronic venous insufficiency and varicose veins; acetylcysteine as a mucolytic agent and its questionable efficiency especially by an oral intake; stem cells and cell therapies. In conclusion, placebo therapies can be beneficial and ethically justifiable but it is not a sufficient reason to publish biased information. Importantly, placebo must be devoid of adverse effects, otherwise, it is named pseudo-placebo. Therapeutic methods with unproven effects should be tested in high-quality research shielded from the funding bias. Some issues discussed in this review are not entirely clear, and the arguments provided here can initiate a constructive discussion.
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Affiliation(s)
- Sergei V. Jargin
- Peoples’ Friendship University of Russia, Clementovski per 6-82, Moscow115184, Russia
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7
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Abstract
Since the June 2014 consensus statement published in Post Reproductive Health we have had definitive guidelines on menopause treatment from the National Institute for Clinical Excellence in November 2015. These included robust and evidence based information about many non-estrogen based treatments, which are particularly useful for patients who do not wish to take hormone replacement therapy, or who have medical contraindications to hormonal therapy such as hormone dependent cancers. Whilst none of these therapies is as effective as hormones, we must be able to advise patients about them and recommend which treatments may be helpful for individual women.
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Affiliation(s)
- Jane Woyka
- The Harrow Health Care Centre, BMI Clementine Churchill Hospital, UK
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8
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Wolff A, Joshi RK, Ekström J, Aframian D, Pedersen AML, Proctor G, Narayana N, Villa A, Sia YW, Aliko A, McGowan R, Kerr AR, Jensen SB, Vissink A, Dawes C. A Guide to Medications Inducing Salivary Gland Dysfunction, Xerostomia, and Subjective Sialorrhea: A Systematic Review Sponsored by the World Workshop on Oral Medicine VI. Drugs R D 2017; 17:1-28. [PMID: 27853957 PMCID: PMC5318321 DOI: 10.1007/s40268-016-0153-9] [Citation(s) in RCA: 154] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Medication-induced salivary gland dysfunction (MISGD), xerostomia (sensation of oral dryness), and subjective sialorrhea cause significant morbidity and impair quality of life. However, no evidence-based lists of the medications that cause these disorders exist. OBJECTIVE Our objective was to compile a list of medications affecting salivary gland function and inducing xerostomia or subjective sialorrhea. DATA SOURCES Electronic databases were searched for relevant articles published until June 2013. Of 3867 screened records, 269 had an acceptable degree of relevance, quality of methodology, and strength of evidence. We found 56 chemical substances with a higher level of evidence and 50 with a moderate level of evidence of causing the above-mentioned disorders. At the first level of the Anatomical Therapeutic Chemical (ATC) classification system, 9 of 14 anatomical groups were represented, mainly the alimentary, cardiovascular, genitourinary, nervous, and respiratory systems. Management strategies include substitution or discontinuation of medications whenever possible, oral or systemic therapy with sialogogues, administration of saliva substitutes, and use of electro-stimulating devices. LIMITATIONS While xerostomia was a commonly reported outcome, objectively measured salivary flow rate was rarely reported. Moreover, xerostomia was mostly assessed as an adverse effect rather than the primary outcome of medication use. This study may not include some medications that could cause xerostomia when administered in conjunction with others or for which xerostomia as an adverse reaction has not been reported in the literature or was not detected in our search. CONCLUSIONS We compiled a comprehensive list of medications with documented effects on salivary gland function or symptoms that may assist practitioners in assessing patients who complain of dry mouth while taking medications. The list may also prove useful in helping practitioners anticipate adverse effects and consider alternative medications.
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Affiliation(s)
- Andy Wolff
- Tel-Aviv Sourasky Medical Center, Tel Aviv, Israel.
- Saliwell Ltd, 65 Hatamar St, 60917, Harutzim, Israel.
| | - Revan Kumar Joshi
- Department of Oral Medicine and Radiology, DAPMRV Dental College, Bangalore, India
| | - Jörgen Ekström
- Department of Pharmacology, Institute of Neuroscience and Physiology, The Sahlgrenska Academy at the University of Gothenburg, Göteborg, Sweden
| | | | - Anne Marie Lynge Pedersen
- Department of Odontology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Gordon Proctor
- Mucosal and Salivary Biology Division, Dental Institute, King's College London, London, UK
| | - Nagamani Narayana
- Department of Oral Biology, University of Nebraska Medical Center (UNMC) College of Dentistry, Lincoln, NE, USA
| | - Alessandro Villa
- Division of Oral Medicine and Dentistry, Department of Oral Medicine Infection and Immunity, Brigham and Women's Hospital, Harvard School of Dental Medicine, Boston, MA, USA
| | - Ying Wai Sia
- McGill University, Faculty of Dentistry, Montreal, QC, Canada
| | - Ardita Aliko
- Faculty of Dental Medicine, University of Medicine, Tirana, Albania
- Broegelmann Research Laboratory, Department of Clinical Science, University of Bergen, Bergen, Norway
| | | | | | - Siri Beier Jensen
- Department of Odontology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Department of Dentistry and Oral Health, Aarhus University, Aarhus, Denmark
| | - Arjan Vissink
- Department of Oral and Maxillofacial Surgery, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Colin Dawes
- Department of Oral Biology, University of Manitoba, Winnipeg, MB, Canada
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Pettit J, Glickman-Simon R. Osteopathic Manipulative Therapy for Preterm Infants, Acupuncture for Menopausal Symptoms, Mindfulness-Based Stress Reduction for Chronic Low Back Pain, Chocolate for Ischemic Heart Disease, Berberine for Irritable Bowel Syndrome. Explore (NY) 2016; 12:388-92. [PMID: 27473312 DOI: 10.1016/j.explore.2016.06.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Afsordeh N, Heydari A, Salami M, Sadat Alavi S, Arbabi E, Karimi S, Hamidi G. Effect of Estradiol and Soy Extract on the Onset of PTZ-Induced Seizure in Ovariectomized Rats: Implications for Nurses and Midwives. Nurs Midwifery Stud 2016. [DOI: 10.17795/nmsjournal33428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Trujillo E, Dunn BK, Greenwald P. Cancer. LIFESTYLE MEDICINE 2016. [DOI: 10.1007/978-3-319-24687-1_24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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12
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Lehert P, Villaseca P, Hogervorst E, Maki PM, Henderson VW. Individually modifiable risk factors to ameliorate cognitive aging: a systematic review and meta-analysis. Climacteric 2015; 18:678-89. [PMID: 26361790 PMCID: PMC5199766 DOI: 10.3109/13697137.2015.1078106] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A number of health and lifestyle factors are thought to contribute to cognitive decline associated with age but cannot be easily modified by the individual patient. We identified 12 individually modifiable interventions that can be implemented during midlife or later with the potential to ameliorate cognitive aging. For ten of these, we used PubMed databases for a systematic review of long-duration (at least 6 months), randomized, controlled trials in midlife and older adults without dementia or mild cognitive impairment with objective measures of neuropsychological performance. Using network meta-analysis, we performed a quantitative synthesis for global cognition (primary outcome) and episodic memory (secondary outcome). Of 1038 publications identified by our search strategy, 24 eligible trials were included in the network meta-analysis. Results suggested that the Mediterranean diet supplemented by olive oil and tai chi exercise may improve global cognition, and the Mediterranean diet plus olive oil and soy isoflavone supplements may improve memory. Effect sizes were no more than small (standardized mean differences 0.11-0.22). Cognitive training may have cognitive benefit as well. Most individually modifiable risk factors have not yet been adequately studied. We conclude that some interventions that can be self-initiated by healthy midlife and older adults may ameliorate cognitive aging.
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Affiliation(s)
- P Lehert
- a Faculty of Economics, Université Catholique de Louvain (UCL Mons) , Mons , Belgium and Department of Psychiatry , Faculty of Medicine, The University of Melbourne , Australia
| | - P Villaseca
- b * Department of Endocrinology , Faculty of Medicine, Pontificia Universidad Católica de Chile , Santiago , Chile
| | - E Hogervorst
- c Applied Cognitive Research, School of Sport, Exercise and Health Sciences, Loughborough University , Loughborough, Leicestershire, UK
| | - P M Maki
- d Departments of Psychiatry and Psychology , University of Illinois at Chicago , Chicago , Illinois ; USA
| | - V W Henderson
- e Departments of Health Research and Policy (Epidemiology) and of Neurology and Neurological Sciences , Stanford University , Stanford , California , USA
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Chen MN, Lin CC, Liu CF. Efficacy of phytoestrogens for menopausal symptoms: a meta-analysis and systematic review. Climacteric 2015; 18:260-9. [PMID: 25263312 PMCID: PMC4389700 DOI: 10.3109/13697137.2014.966241] [Citation(s) in RCA: 147] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2014] [Revised: 09/10/2014] [Accepted: 09/12/2014] [Indexed: 11/13/2022]
Abstract
OBJECTIVE To perform a meta-analysis examining the efficacy of phytoestrogens for the relief of menopausal symptoms. METHODS Medline, Cochrane, EMBASE, and Google Scholar databases were searched until September 30, 2013 using the following key words: vasomotor symptoms, menopausal symptoms, phytoestrogens, isoflavones, coumestrol, soy, red clover. Inclusion criteria were (1) randomized controlled trial (RCT), (2) perimenopausal or postmenopausal women experiencing menopausal symptoms, (3) intervention with an oral phytoestrogen. Outcome measures included Kupperman index (KI) changes, daily hot flush frequency, and the likelihood of side-effects. RESULTS Of 543 potentially relevant studies identified, 15 RCTs meeting the inclusion criteria were included. The mean age of the subjects ranged from 49 to 58.3 and 48 to 60.1 years, respectively, in the placebo and phytoestrogen groups. The number of participants ranged from 30 to 252, and the intervention periods ranged from 3 to 12 months. Meta-analysis of the seven studies that reported KI data indicated no significant treatment effect of phytoestrogen as compared to placebo (pooled mean difference = 6.44, p = 0.110). Meta-analysis of the ten studies that reported hot flush data indicated that phytoestrogens result in a significantly greater reduction in hot flush frequency compared to placebo (pooled mean difference = 0.89, p < 0.005). Meta-analysis of the five studies that reported side-effect data showed no significant difference between the two groups (p = 0.175). CONCLUSION Phytoestrogens appear to reduce the frequency of hot flushes in menopausal women, without serious side-effects.
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Affiliation(s)
- M-N. Chen
- Hsin Sheng Junior College of Medical Care and Management, Taoyuan
| | - C-C. Lin
- Department of Nursing, Meiho University, Pingtung
| | - C-F. Liu
- Graduate Institute of Integration of Traditional Chinese Medicine with Western Nursing, National Taipei University of Nursing and Health Sciences, Taipei, Taiwan
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14
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Jargin SV. Soy and phytoestrogens: possible side effects. GERMAN MEDICAL SCIENCE : GMS E-JOURNAL 2014; 12:Doc18. [PMID: 25587246 PMCID: PMC4270274 DOI: 10.3205/000203] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Revised: 11/13/2014] [Indexed: 12/15/2022]
Abstract
Phytoestrogens are present in certain edible plants being most abundant in soy; they are structurally and functionally analogous to the estrogens. Phytoestrogens have been applied for compensation of hormone deficiency in the menopause. At the same time, soy products are used in infant food and other foodstuffs. Furthermore, soy is applied as animal fodder, so that residual phytoestrogens and their active metabolites such as equol can remain in meat and influence the hormonal balance of the consumers. There have been only singular reports on modified gender-related behavior or feminization in humans in consequence of soy consumption. In animals, the intake of phytoestrogens was reported to impact fertility, sexual development and behavior. Feminizing effects in humans can be subtle and identifiable only statistically in large populations.
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Poluzzi E, Piccinni C, Raschi E, Rampa A, Recanatini M, De Ponti F. Phytoestrogens in postmenopause: the state of the art from a chemical, pharmacological and regulatory perspective. Curr Med Chem 2014; 21:417-36. [PMID: 24164197 PMCID: PMC3963458 DOI: 10.2174/09298673113206660297] [Citation(s) in RCA: 84] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2013] [Revised: 08/01/2013] [Accepted: 10/04/2013] [Indexed: 11/22/2022]
Abstract
Phytoestrogens represent a diverse group of non-steroidal natural products, which seem to have some oestrogenic effects and are often marketed as food supplements. Population exposed to phytoestrogens is potentially increasing, in part because an unfavourable risk-benefit profile of Hormone Replacement Therapy (HRT) for prolonged treatments (e.g., osteoporosis prevention) highlighted by the publication of the Women Health Initiative (WHI) trial in 2002, but also because many post-menopausal women often perceived phytoestrogens in food supplements as a safer alternative than HRT. Despite of increasing preclinical and clinical studies in the past decade, appealing evidence is still lacking to support the overall positive risk-benefit profile of phytoestrogens. Their status as food supplements seems to discourage studies to obtain new evidence, and the chance to buy them by user's initiative make it difficult to survey their prevalence and pattern of use. The aim of the present review is to: (a) outline the clinical scenario underlying the increased interest on phytoestrogens, by overviewing the evolution of the evidence on HRT and its main therapeutic goals (e.g., menopausal symptoms relief, chemoprevention, osteoporosis prevention); (b) address the chemical and pharmacological features (e.g. chemical structure, botanical sources, mechanism of action) of the main compounds (e.g., isoflavones, lignans, coumestans); (c) describe the clinical evidence on potential therapeutic applications; (d) put available evidence on their riskbenefit profile in a regulatory perspective, in light of the recent regulation on health claims of food supplements.
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Affiliation(s)
| | | | | | | | | | - Fabrizio De Ponti
- Pharmacology Unit Department of Medical and Surgical Sciences Via Irnerio, 48 I-40126 Bologna BO Italy.
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Ulbricht C, Windsor RC. An Evidence-Based Systematic Review of Black cohosh (Cimicifuga racemosa, Actaea racemosa) by the Natural Standard Research Collaboration. J Diet Suppl 2014; 12:265-358. [PMID: 25153652 DOI: 10.3109/19390211.2014.946731] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
An evidence-based systematic review of black cohosh (Cimicifuga racemosa, Actaea racemosa) by the Natural Standard Research Collaboration consolidates the safety and efficacy data available in the scientific literature using a validated, reproducible grading rationale. This article includes written and statistical analysis of clinical trials, plus a compilation of expert opinion, folkloric precedent, history, pharmacology, kinetics/dynamics, interactions, adverse effects, toxicology, and dosing.
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Thomas AJ, Ismail R, Taylor-Swanson L, Cray L, Schnall JG, Mitchell ES, Woods NF. Effects of isoflavones and amino acid therapies for hot flashes and co-occurring symptoms during the menopausal transition and early postmenopause: a systematic review. Maturitas 2014; 78:263-76. [PMID: 24951101 DOI: 10.1016/j.maturitas.2014.05.007] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2014] [Accepted: 05/15/2014] [Indexed: 11/18/2022]
Abstract
AIMS Review controlled clinical trials of isoflavones and amino acid preparation effects on hot flashes and at least one other symptom including mood, sleep, pain, and cognitive function that women report during the menopausal transition and early postmenopause. METHODS An experienced reference librarian searched PubMed/Medline, CINAHL Plus, PsycInfo, Cochrane Database of Systematic Reviews, Cochrane Central Register of Controlled Trials, Web of Science, EMBASE, AMED, and Alt-Health Watch for English-language randomized controlled trials between 2004 and July 2011. Seventeen trials of isoflavones and amino acid effects on hot flashes and one additional symptom were identified. RESULTS In five trials of soy isoflavone preparations, two (6g soy germ extract and 25 g soy protein in soy nuts) significantly decreased hot flashes, but no other symptoms. In the seven trials of other isoflavones, six significantly reduced hot flashes; in addition, red clover (80 mg) significantly reduced mood symptoms; Rexflavone (350 mg) for women with Kupperman Index>20 significantly reduced sleep symptoms; two trials had significant reductions for pain: isoflavone powder (90 mg) and red clover (80 mg). The only trial in this systematic review that significantly reduced cognitive symptoms was red clover (80 mg). In one trial, red clover isoflavone (80 mg/day) significantly relieved hot flashes, mood, pain, and cognitive symptoms. Amino acids yielded no significant results. Equol supplements of 30 mg/day for non-Equol producing women significantly reduced mood symptoms in one trial. The magnolia bark extract combination significantly reduced hot flashes, mood, and sleep symptoms. CONCLUSIONS Isoflavone trials yielded significant reductions on hot flashes and co-occurring symptoms during the menopausal transition and postmenopause, but studies require replication with larger sample sizes and attention to measurement of outcomes.
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Affiliation(s)
| | - Rita Ismail
- University of Washington School of Nursing, United States and Ministry of Health, Republic of Indonesia, United States
| | | | - Lori Cray
- College of Nursing, Seattle University, United States
| | - Janet G Schnall
- Health Sciences Library, University of Washington, United States
| | | | - Nancy Fugate Woods
- Biobehavioral Nursing and Health Systems, University of Washington, United States
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Bedell S, Nachtigall M, Naftolin F. The pros and cons of plant estrogens for menopause. J Steroid Biochem Mol Biol 2014; 139:225-36. [PMID: 23270754 DOI: 10.1016/j.jsbmb.2012.12.004] [Citation(s) in RCA: 111] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2012] [Revised: 12/04/2012] [Accepted: 12/05/2012] [Indexed: 01/12/2023]
Abstract
Concerns pertaining to the risk of estrogen exposure through HT have prompted an increase in the use of natural alternatives. Phytoestrogens may provide postmenopausal women with a practical alternative and many women have already begun to utilize phytoestrogen supplements. However, research regarding the efficacy of phytoestrogens as a hormone therapy alternative has been previously pessimistic or questionable at best. This review scrutinizes the most current research regarding the efficacy of three types of phytoestrogens, isoflavones, lignans and coumestans, and their specific effect on the reduction of climacteric symptoms, specifically vasomotor symptoms, vaginal atrophy, insomnia and osteoporosis. A discussion of the research pertaining to the relative safety of each phytoestrogen in terms of breast and endometrial health is also included. Overall, current research demonstrates that phytoestrogens are effective in reducing the intensity of hot flushes, and some phytoestrogen combinations result in a decreased frequency. Certain phytoestrogens have also been shown to decrease vaginal atrophy, improve sleep and cognition, and positively affect bone health. Even though initial research was generally unconvincing, the more recent evidence reviewed here is rather positive. In terms of safety and reports of adverse reactions, trials have not shown an increase in breast cancer risk or increase in endometrial hyperplasia following phytoestrogen use, but trials explicitly designed to find neoplasia have not been reported. Moreover, unlike hormone therapy, lignans may not increase clotting risk in postmenopausal women, thus supplements may serve as a treatment option for patients who have contraindications to hormone therapy. Phytoestrogens may provide a safe and partially effective alternative to HT. However, because research regarding phytoestrogens is relatively new, pharmaco-vigilence is still required, as these products are not yet FDA-approved. This article is part of a Special Issue entitled 'Phytoestrogens'.
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Affiliation(s)
- Sarah Bedell
- Interdisciplinary Program in Menopausal Medicine, Department of Obstetrics and Gynecology, New York University School of Medicine, New York 10016, United States
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Lethaby A, Marjoribanks J, Kronenberg F, Roberts H, Eden J, Brown J. Phytoestrogens for menopausal vasomotor symptoms. Cochrane Database Syst Rev 2013; 2013:CD001395. [PMID: 24323914 PMCID: PMC10247921 DOI: 10.1002/14651858.cd001395.pub4] [Citation(s) in RCA: 70] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Vasomotor symptoms, such as hot flushes and night sweats, are very common during the menopausal transition. Hormone therapy has traditionally been used as a highly effective treatment, but concerns about increased risk of some chronic diseases have markedly increased the interest of women in alternative treatments. Some of the most popular of these treatments are foods or supplements enriched with phytoestrogens-plant-derived chemicals that have estrogenic action. OBJECTIVES To assess the efficacy, safety and acceptability of food products, extracts and dietary supplements containing high levels of phytoestrogens when compared with no treatment, placebo or hormone therapy for the amelioration of vasomotor menopausal symptoms (such as hot flushes and night sweats) in perimenopausal and postmenopausal women. SEARCH METHODS Searches targeted the following electronic databases: the Cochrane Menstrual Disorders and Subfertility Group Specialised Register of randomised trials (29 July 2013), the Cochrane Register of Controlled Trials (CENTRAL; 29 July 2013), MEDLINE (inception to 29 July 2013), EMBASE (inception to 29 July 2013), AMED (1985 to 29 July 2013), PsycINFO (inception to 29 July 2013) and CINAHL (inception to 29 July 2013). Attempts were made to access grey literature by sending letters to pharmaceutical companies and performing searches of ongoing trial registers. Reference lists of included trials were also searched. SELECTION CRITERIA Studies were included if they were randomised, included perimenopausal or postmenopausal participants with vasomotor symptoms (hot flushes or night sweats), lasted at least 12 weeks and provided interventions such as foods or supplements with high levels of phytoestrogens (not combined with other herbal treatments). Trials that included women who had breast cancer or a history of breast cancer were excluded. DATA COLLECTION AND ANALYSIS Selection of trials, extraction of data and assessment of quality were undertaken by at least two review authors. Most trials were too dissimilar for their results to be combined in a meta-analysis, so these findings are provided in narrative 'Summary of results' tables. Studies were grouped into broad categories: dietary soy, soy extracts, red clover extracts, genistein extracts and other types of phytoestrogens. Five trials used Promensil, a red clover extract; results of these trials were combined in a meta-analysis, and summary effect measures were calculated. MAIN RESULTS A total of 43 randomised controlled trials (4,364 participants) were included in this review. Very few trials provided data suitable for inclusion in a meta-analysis. Among the five trials that yielded data assessing the daily frequency of hot flushes suitable for pooling, no significant difference overall was noted in the incidence of hot flushes between participants taking Promensil (a red clover extract) and those given placebo (mean difference (MD) -0.93, 95% confidence interval (CI) -1.95 to 0.10, I(2) = 31%). No evidence indicated a difference in percentage reduction in hot flushes in two trials between Promensil and placebo (MD 20.15, 95% CI -12.08 to 52.38, I(2) = 82%). Four trials that were not combined in meta-analyses suggested that extracts with high (> 30 mg/d) levels of genistein consistently reduced the frequency of hot flushes. Individual results from the remaining trials were compared in broad subgroups such as dietary soy, soy extracts and other types of phytoestrogens that could not be combined. Some of these trials found that phytoestrogen treatments alleviated the frequency and severity of hot flushes and night sweats when compared with placebo, but many trials were small and were determined to be at high risk of bias. A strong placebo effect was noted in most trials, with a reduction in frequency ranging from 1% to 59% with placebo. No indication suggested that discrepant results were due to the amount of isoflavone in the active treatment arm, the severity of vasomotor symptoms or trial quality factors. Also, no evidence indicated that these treatments caused oestrogenic stimulation of the endometrium or the vagina or other adverse effects when used for up to two years. AUTHORS' CONCLUSIONS No conclusive evidence shows that phytoestrogen supplements effectively reduce the frequency or severity of hot flushes and night sweats in perimenopausal or postmenopausal women, although benefits derived from concentrates of genistein should be further investigated.
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Affiliation(s)
- Anne Lethaby
- University of AucklandDepartment of Obstetrics and GynaecologyPrivate Bag 92019AucklandNew Zealand1142
| | - Jane Marjoribanks
- University of AucklandDepartment of Obstetrics and GynaecologyPrivate Bag 92019AucklandNew Zealand1142
| | - Fredi Kronenberg
- College of Physicians & Surgeons, Columbia University in the City of New YorkDepartment of Rehabilitation MedicineBOX 75630 W 168TH STNew YorkUSANY 10027‐6902
| | - Helen Roberts
- University of AucklandDepartment of Obstetrics and GynaecologyPrivate Bag 92019AucklandNew Zealand1142
| | - John Eden
- Royal Hospital for WomenSydney Menopause Centre & Natural Therapies UnitLocked Bag 2000RandwickNSWAustralia2031
| | - Julie Brown
- University of AucklandThe Liggins Institute and Department of Obstetrics and GynaecologyFMHSAucklandNew Zealand
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Ghazal S, Pal L. Perspective on hormone therapy 10 years after the WHI. Maturitas 2013; 76:208-12. [PMID: 24094493 DOI: 10.1016/j.maturitas.2013.08.014] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2013] [Accepted: 08/31/2013] [Indexed: 12/28/2022]
Abstract
The Women's Health Initiative (WHI) hormone trials are among the most influential and debated research studies in women's health in recent medical history. This year (2013) marked the 10th anniversary of the publication of the WHI results and this past decade has been nothing less than revolutionary. We have witnessed a transformative evolution in our understanding of, and in the practice of, menopause management and herein summarize the strides the field has traversed over the past 10 years.
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Affiliation(s)
- Sanaz Ghazal
- Yale University School of Medicine, Department of Obstetrics, Gynecology & Reproductive Sciences, 333 Cedar Street, New Haven, CT 06477, United States
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Abstract
BACKGROUND Isoflavones are an alternative to hormonal therapy for the relief of menopausal symptoms. Since isoflavones interact with estrogen receptors it has been hypothesized that such substances may have an effect on bone health. OBJECTIVE To clarify the effect of isoflavones on bone at experimental and clinical level, and to identify areas that require further clarification and research. METHOD A systematic review of studies involving isoflavones and bone health was performed, and a specific search on isoflavone's mechanism of action and the importance of equol production was made based on Internet search engines, MEDLINE (1966-October 2012) and the Cochrane Controlled Clinical Trials Register. This search was supplemented by a handsearch of reference lists of selected papers. RESULTS In vitro and animal studies show a positive effect of isoflavones on bone which has not been clearly confirmed by long-term human trials. Equol producers seem to present a more positive response to isoflavone intervention. Isoflavone rich diets could help maintain peak bone mass in premenopausal women. The effect of isoflavones in perimenopausal women is insufficiently studied but it seems to attenuate bone loss in the menopausal transition. In postmenopause, isoflavones may present a modest benefit but its clinical relevance in preventing osteoporotic fractures remains to be determined. CONCLUSIONS The present review suggests that isoflavone increase bone mineral density and decrease the bone turnover resorption markers. The effect of soy isoflavones on BMD is mediated by equol production, reproductive status, supplement type, isoflavone dose and intervention duration.
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Affiliation(s)
- Camil Castelo-Branco
- Institut Clinic of Gynecology, Obstetrics and Neonatology, Faculty of Medicine, University of Barcelona, and Hospital Clinic-Institut d'Investigacions Biome` diques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.
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