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Yao L, Fan Z, Han S, Sun N, Che H. Apigenin acts as a partial agonist action at estrogen receptors in vivo. Eur J Pharmacol 2021; 906:174175. [PMID: 34048736 DOI: 10.1016/j.ejphar.2021.174175] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 04/28/2021] [Accepted: 05/11/2021] [Indexed: 10/21/2022]
Abstract
The flavone apigenin is widely distributed in vegetables and fruits and has a variety of pharmacological effects. However, there is no definitive scientific evidence that apigenin could act as a phytoestrogen and exert exerting estrogenic or antiestrogenic efficacy in vivo. Therefore, this study was established an ovariectomy (OVX) and estrogenized mouse model to evaluate the effects of apigenin on reproductive target tissues. Our data demonstrated that apigenin could exert a double-directional adjusting estrogenic effect in vivo. Specifically, treatment with apigenin reversed the weight changes caused by abnormal estrogen levels and altered the status of vaginal epithelial cells via the estrogen receptors. In addition, we found that apigenin exhibited a significant estrogenic activity, as indicated by the reversal of uterine atrophy. Apigenin treatment could also regulate the target tissue coefficient changes and estrogen disorders caused by excessive estrogen. Importantly, the administration of apigenin could upregulated the estrogen receptor (ER) α and ER β expression as a partial agonist. Our results demonstrate that apigenin has a double directional adjusting function in different physiological environments.
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Affiliation(s)
- Lu Yao
- Key Laboratory of Precision Nutrition and Food Quality, Key Laboratory of Functional Dairy, Ministry of Education, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China
| | - Zhuoyan Fan
- Key Laboratory of Precision Nutrition and Food Quality, Key Laboratory of Functional Dairy, Ministry of Education, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China
| | - Shiwen Han
- Key Laboratory of Precision Nutrition and Food Quality, Key Laboratory of Functional Dairy, Ministry of Education, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China
| | - Na Sun
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian, 116034, PR China
| | - Huilian Che
- Key Laboratory of Precision Nutrition and Food Quality, Key Laboratory of Functional Dairy, Ministry of Education, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China.
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Soares JM, Branco-de-Luca AC, da Fonseca AM, Carvalho-Lopes CM, Arruda-Veiga EC, Roa CL, Bagnoli VR, Baracat EC. Acupuncture ameliorated vasomotor symptoms during menopausal transition: single-blind, placebo-controlled, randomized trial to test treatment efficacy. ACTA ACUST UNITED AC 2020; 28:80-85. [PMID: 32898024 DOI: 10.1097/gme.0000000000001651] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVES This study aimed to evaluate the effects of acupuncture on women with vasomotor symptoms during the menopausal transition with the aid of the Kupperman-Blatt Menopausal Index. METHOD Crossover, single-blind, sham-controlled trial with 100 women randomly divided into two groups of 50 participants each: G1 and G2. During the first 24 weeks of treatment, the G1 women received acupuncture and the G2 women were given sham acupuncture. The crossover was then applied: the G1 participants were given sham acupuncture, and the G2 participants received acupuncture for 24 more weeks. RESULTS The mean score of hot flashes of the group who first experienced acupuncture (G1) was statistically higher than that of the group that started with sham acupuncture (G2, P = 0.020). Also, both groups had similar mean scores in the middle of the study (both were receiving acupuncture). During the last 6 months of the study, after crossover, the values of G2 (acupuncture) were lower than those of G1 (sham acupuncture). CONCLUSIONS Acupuncture treatment may mitigate hot flashes and other climacteric symptoms during the menopausal transition.
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Affiliation(s)
- Jose M Soares
- Disciplina de Ginecologia, Departamento de Obstetrícia e Ginecologia, Hospital das Clínicas, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
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Bidirectional Estrogen-Like Effects of Genistein on Murine Experimental Autoimmune Ovarian Disease. Int J Mol Sci 2016; 17:ijms17111855. [PMID: 27834809 PMCID: PMC5133855 DOI: 10.3390/ijms17111855] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2016] [Revised: 10/23/2016] [Accepted: 11/01/2016] [Indexed: 11/17/2022] Open
Abstract
This study was to investigate the bidirectional estrogen-like effects of genistein on murine experimental autoimmune ovarian disease (AOD). Female BALB/c mice were induced by immunization with a peptide from murine zona pellucida. The changes of estrous cycle, ovarian histomorphology were measured, and the levels of serum sex hormone were analyzed using radioimmunoassay. Proliferative responses of the ovary were also determined by immunohistochemistry. Administration of 25 or 45 mg/kg body weight genistein enhanced ovary development with changes in serum sex hormone levels and proliferative responses. Meanwhile, the proportions of growing and mature follicles increased and the incidence of autoimmune oophoritis decreased, which exhibited normal ovarian morphology in administration of 25 or 45 mg/kg body weight genistein, while a lower dose (5 mg/kg body weight genistein) produced the opposite effect. These findings suggest that genistein exerts bidirectional estrogen-like effects on murine experimental AOD, while a high dose (45 mg/kg body weight) of genistein may suppress AOD.
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Whelan AM, Jurgens TM, Trinacty M. Bioidentical progesterone cream for menopause-related vasomotor symptoms: is it effective? Ann Pharmacother 2012; 47:112-6. [PMID: 23249728 DOI: 10.1345/aph.1r362] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
OBJECTIVE To evaluate the efficacy of bioidentical progesterone cream in the treatment of menopause-related vasomotor symptoms. DATA SOURCES A systematic search (from time of inception to September 2012) of PubMed, EMBASE, International Pharmaceutical Abstracts, International Journal of Pharmaceutical Compounding, Cochrane, and CINAHL was conducted using the terms progesterone, vasomotor symptoms, night sweats, hot flash or flush, and randomized controlled trials (RCTs). Hand-searching of citations from relevant articles was also performed. STUDY SELECTION AND DATA EXTRACTION Articles selected for inclusion described RCTs evaluating the use of bioidentical progesterone cream for the treatment of menopause-related vasomotor symptoms. Studies included were placebo controlled and participants were postmenopausal women experiencing vasomotor symptoms. DATA SYNTHESIS Searching identified 3 published RCTs. Only one study, which used a bioidentical progesterone cream specifically compounded for the trial, found that the bioidentical progesterone was more effective than placebo in relieving menopause-related vasomotor symptoms. The 2 studies using manufactured bioidentical progesterone creams found that the creams were no more effective than placebo. Vaginal bleeding and headaches were the most commonly reported adverse effects in the studies. CONCLUSIONS Available evidence from RCTs does not support the efficacy of bioidentical progesterone cream for the management of menopause-related vasomotor symptoms. Adverse effects appear to be mild and self-limiting.
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Affiliation(s)
- Anne Marie Whelan
- College of Pharmacy, Dalhousie University, Halifax, Nova Scotia, Canada.
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Neese SL, Bandara SB, Doerge DR, Helferich WG, Korol DL, Schantz SL. Effects of multiple daily genistein treatments on delayed alternation and a differential reinforcement of low rates of responding task in middle-aged rats. Neurotoxicol Teratol 2012; 34:187-95. [PMID: 21945133 PMCID: PMC3267004 DOI: 10.1016/j.ntt.2011.09.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2011] [Revised: 08/30/2011] [Accepted: 09/06/2011] [Indexed: 01/20/2023]
Abstract
The use of extracts that are highly enriched in phytoestrogens, such as genistein, has become popular to promote various aspects of healthy aging, including maintenance of cognitive function. These compounds are promoted to menopausal women as safe, natural alternatives to traditional estrogen therapies, yet their safety and efficacy are poorly understood. Previous research in our lab found that once daily oral treatment of ovariectomized female Long-Evans (LE) rats with the soy phytoestrogen, genistein resulted in subtle deficits in performance on cognitive tasks assessing working memory and response inhibition/timing ability. The present study further modeled exposure of the menopausal woman to genistein by treating 14-month old ovariectomized female LE rats three times daily at a dose of genistein resulting in serum concentrations similar to those that could be achieved in humans consuming either a commercially available soy isoflavone supplement or a diet high in these phytoestrogens. Genistein (3.4 mg/kg) or sucrose control pellets were orally administered to animals daily, 30 min before behavioral testing, and again both 4 and 8 h after the first treatment. The test battery consisted of a delayed spatial alternation task (DSA) that tested working memory and a differential reinforcement of low rates of responding (DRL) task that tested inhibitory control/timing. Genistein treatment impaired DSA performance relative to sucrose controls. Performance on the DRL task was largely unaffected by genistein treatment. Although the impairment measured on DSA was less pronounced than that we have previously reported following chronic treatment with 17β-estradiol, the pattern of the deficit was very similar to that observed with 17β-estradiol.
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Affiliation(s)
- Steven L Neese
- Department of Comparative Biosciences, University of Illinois at Urbana-Champaign, 2001 S. Lincoln Avenue, Urbana, IL 61802, USA.
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Castelo Branco de Luca A, Maggio da Fonseca A, Carvalho Lopes CM, Bagnoli VR, Soares JM, Baracat EC. Acupuncture-ameliorated menopausal symptoms: single-blind, placebo-controlled, randomized trial. Climacteric 2011; 14:140-5. [DOI: 10.3109/13697137.2010.484875] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Cope MB, Erdman JW, Allison DB. The potential role of soyfoods in weight and adiposity reduction: an evidence-based review. Obes Rev 2008; 9:219-35. [PMID: 18419671 DOI: 10.1111/j.1467-789x.2007.00390.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Evidence concerning the relationship between soyfoods and weight loss was reviewed. Detailed searches of PubMed and Web of Science were performed to identify and evaluate evidence for or against four propositions related to soyfoods and weight loss (Data from in vitro, animal, epidemiologic, and clinical studies were evaluated and summarized). (1) Certain soyfoods will improve weight and/or fat loss when fed at isolcaloric levels (similar calories given across experimental conditions, but not necessarily at a level to maintain current body weight); generally supportive evidence in animal studies, but there is no compelling support in human studies. (2) Certain soyfoods will improve weight and fat loss when included as part of a diet by affecting caloric intake; limited supportive evidence in animal and human studies. (3) Certain soyfoods will prevent/improve risk factors related to glucoregulatory function and cardiovascular health during weight loss; some evidence supporting this proposition, but additional evidence is needed before conclusions can be made. (4) Certain soyfoods will minimize the loss of bone mass during weight loss; no data available pertinent to this proposition. Limitations in existing data make it difficult to reach conclusions regarding these four propositions. Overall, the current data suggest that soyfoods are as good as other protein sources for promoting weight loss and there is a suggestive body of evidence that soyfoods may confer additional benefits, but results must be carefully interpreted and additional evidence is needed before making firm conclusions concerning soyfoods and weight loss.
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Affiliation(s)
- M B Cope
- Department of Nutrition Sciences, University of Alabama at Birmingham School of Public Health, Birmingham, AL, USA
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Grant K, Burg MA, Fraser K, Gui S, Kosch SG, Nierenberg B, Oyama O, Pomm H, Sibille K, Spruill T, Swartz V. Family Medicine Physicians′ Advice about Use of Nonconventional Modalities for Menopausal Symptom Management. J Womens Health (Larchmt) 2007; 16:517-25. [PMID: 17521255 DOI: 10.1089/jwh.2006.0268] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
AIMS This study explores the beliefs and practices of family medicine physicians regarding the use of nonconventional modalities for menopausal symptom management. METHODS Anonymous self-administered questionnaires were distributed to faculty and residents from eight participating family medicine residency programs around Florida, with an overall response rate of 66% (212 respondents). The survey explored what physicians report about patterns of patient inquiries and their responses to patients' inquiries about nonconventional modalities for specific menopausal symptoms and what physicians' report on their advice to patients about using specific herbs and supplements for menopausal symptom relief. RESULTS Behavioral approaches were encouraged more than herbal therapies, acupuncture, and body therapies for the treatment of most of the menopausal symptoms. However, the most frequent response category was No advice. Resident physicians were significantly more likely than faculty to encourage acupuncture. Faculty physicians were more likely than residents to recommend particular herbal remedies. The majority of the respondents believed there was not sufficient evidence for recommending any of the herbs and supplements listed. CONCLUSIONS These data reveal some important trends about how family medicine physicians respond to nontraditional approaches for menopausal symptom management. Because family medicine physicians typically receive some training in behavioral and psychotherapeutic approaches and there is some evidence for the effectiveness of behavioral strategies in menopausal symptom management, it is not surprising that they are more likely to endorse these approaches. Most family medicine physicians, however, have little or no training in the other nonconventional modalities, and our data show that these modalities received lower levels of endorsement, suggesting that physicians are not clear on their advantages or disadvantages.
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Affiliation(s)
- Kathryn Grant
- University of Florida, Gainesville, Florida 32610, USA
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Brett KM, Keenan NL. Complementary and alternative medicine use among midlife women for reasons including menopause in the United States. Menopause 2007; 14:300-7. [PMID: 17091097 DOI: 10.1097/01.gme.0000232031.84788.57] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVE The use of complementary and alternative medicine (CAM) has been examined previously for midlife women only in regional studies. The purpose of this study was to obtain national estimates of CAM use. DESIGN Data were obtained from the 2002 National Health Interview Survey, which included a CAM supplementary questionnaire. The response rate was 74%. The analysis included 3,621 female respondents between 45 and 57 years of age who had answered all of the relevant questions. SUDAAN software was used to account for the complex sampling design. RESULTS Forty-five percent of women 45 to 57 years of age had used some form of CAM within the last 12 months. Approximately 25% used biologics (e.g., herbs) or mind-body (e.g., biofeedback) modalities, whereas only 15% used body work (massage and chiropractic medicine). Use did not vary by age, but white race, higher education, and residence in the West were associated with increased use. Only 45% of CAM users mentioned its use to a medical provider. The most cited reason for using CAM involved treatment of pain, with only 3% mentioning menopause. However, the odds for use of CAM were almost twice as high for women with menopausal symptoms in the past year compared with women with no symptoms (odds ratio: 1.9, 95% CI: 1.6-2.2). CONCLUSIONS CAM use among midlife U.S. women is high, although CAM is not used specifically for menopausal concerns. These data will be useful as a benchmark of the use of CAM as use of conventional menopause therapies are influenced by the Women's Health Initiative results.
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Affiliation(s)
- Kate M Brett
- National Center for Health Statistics/Centers for Disease Control and Prevention, Hyattsville, MD 20782, USA.
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Mastrangelo MA, Galantino ML, House L. Effects of Yoga on Quality of Life and Flexibility in Menopausal Women: A Case Series. Explore (NY) 2007; 3:42-5. [PMID: 17234568 DOI: 10.1016/j.explore.2006.10.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Piante medicinali e sistema riproduttivo. Fitoterapia 2006. [DOI: 10.1007/88-470-0505-1_28] [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]
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