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Abbasi E, Hajhashemy Z, Askari G, Saneei P. Association of Herbal Tea and Follicle-Stimulating Hormone, Anthropometric Parameters, and Fasting Blood Glucose Levels Among Polycystic Ovarian Syndrome Women: A Systematic Review and Meta-Analysis of Clinical Trials. Clin Nutr Res 2024; 13:201-213. [PMID: 39165287 PMCID: PMC11333146 DOI: 10.7762/cnr.2024.13.3.201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 07/19/2024] [Accepted: 07/23/2024] [Indexed: 08/22/2024] Open
Abstract
This systematic review and meta-analysis of randomized controlled trials (RCTs) aimed to test our hypothesis that herbal tea may improve anthropometric parameters, metabolic factors, and hormone levels in women with polycystic ovarian syndrome (PCOS). A literature search was conducted on Information Sciences Institute, Medline (PubMed), Scopus, Embase, and Google Scholar, up to March 2023 without applying language or date restrictions. RCTs that assigned herbal tea vs. placebo on PCOS women and evaluated changes in anthropometric measurements, metabolic indices, or hormonal profiles were included. Six RCTs with 235 PCOS women (119 in the intervention and 116 in the control group) were included. Meta-analysis showed that herbal tea consumption led to significant decreases in weight (weighted mean difference [WMD], -2.02 kg; 95% confidence interval [CI], -3.25, -0.80), body mass index (BMI) (WMD, -0.88 kg/m2; 95% CI, -1.47, -0.28) and fasting blood glucose (FBG) (WMD, -6.47 mg/dL; 95% CI, -8.49, -4.45), compared to the control group. Herbal tea supplementation has also significantly increased follicle-stimulating hormone (FSH) concentration (WMD, 0.56 IU/L; 95% CI, 0.17, 0.95). Meanwhile, the effect of herbal tea on the waist/hip ratio, hip circumference, waist circumference, body fat, fasting insulin, FBG/insulin ratio, luteinizing hormone, total testosterone, and dehydroepiandrosterone sulfate was not significant. Herbal tea might be a potential supplemental therapy to manage weight, BMI, FBG, and FSH in PCOS women. Further large randomized clinical trials are recommended to affirm these findings.
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Affiliation(s)
- Elahe Abbasi
- Student Research Committee, Isfahan University of Medical Sciences, Isfahan 81746-73461, Iran
- Nutrition and Food Security Research Center and Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan 81746-73461, Iran
| | - Zahra Hajhashemy
- Student Research Committee, Isfahan University of Medical Sciences, Isfahan 81746-73461, Iran
- Nutrition and Food Security Research Center and Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan 81746-73461, Iran
| | - Gholamreza Askari
- Nutrition and Food Security Research Center and Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan 81746-73461, Iran
| | - Parvane Saneei
- Nutrition and Food Security Research Center and Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan 81746-73461, Iran
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2
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Crescioli G, Maggini V, Raschi E, Gonella LA, Luxi N, Ippoliti I, Di Giovanni V, Bonaiuti R, Firenzuoli N, Gallo E, Menniti-Ippolito F, Moretti U, Trifirò G, Vannacci A, Firenzuoli F, Lombardi N. Suspected adverse reactions to medications and food supplements containing Serenoa repens: A worldwide analysis of pharmacovigilance and phytovigilance spontaneous reports. Phytother Res 2023; 37:5289-5299. [PMID: 37463655 DOI: 10.1002/ptr.7960] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 06/05/2023] [Accepted: 07/02/2023] [Indexed: 07/20/2023]
Abstract
The safety of Serenoa repens (SR)-containing products was evaluated conducting a retrospective worldwide analysis of pharmaco- and phytovigilance report forms of suspected adverse reactions (SARs) collected up to 31 January 2022. Multivariate logistic regression was performed to estimate the odds ratios (ORs) of serious SAR. A total of 1810 report forms were analysed; 92% of subjects were males, with a median age of 69 years; 44% of cases were defined as serious. Subjects exposed to dietary supplements had a higher risk of developing serious SARs (OR: 1.60 [95% CI: 1.20-2.15]), as subjects exposed to 2-5 (OR: 1. 83 [95% CI: 1.30-2.58]) or more than 5 (OR: 3.45 [95% CI: 2.36-5.06]) suspect/interacting products. The probability of experiencing serious SAR was higher for subjects exposed to concomitant products (OR: 1.55 [95% CI: 1.15-2.08]), to more than four active compounds (OR: 4.38 [95% CI: 3.21-5.99]) and to SR for more than 14 days (OR: 1.89 [95% CI: 1.10-3, 22]), and lower for subjects exposed to higher doses of SR (OR: of 0.34 [95% CI: 0.20-0.58]). This evidence improves awareness on safety of SR containing products, suggesting the need of a further update of periodic reviews by national and international regulatory agencies.
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Affiliation(s)
- Giada Crescioli
- Department of Neurosciences, Psychology, Drug Research and Child Health, Section of Pharmacology and Toxicology, University of Florence, Florence, Italy
- Tuscan Regional Centre of Pharmacovigilance, Florence, Italy
| | - Valentina Maggini
- CERFIT, Research and Innovation Center in Phytotherapy and Integrated Medicine, Careggi University Hospital, Florence, Italy
| | - Emanuel Raschi
- Pharmacology Unit, Department of Medical and Surgical Sciences, Alma Mater Studiorum, University of Bologna, Bologna, Italy
| | | | - Nicoletta Luxi
- Department of Medicine, University of Verona, Verona, Italy
| | - Ilaria Ippoliti
- National Centre for Drug Research and Evaluation, Italian National Institute of Health, Rome, Italy
| | | | - Roberto Bonaiuti
- Department of Neurosciences, Psychology, Drug Research and Child Health, Section of Pharmacology and Toxicology, University of Florence, Florence, Italy
- Tuscan Regional Centre of Pharmacovigilance, Florence, Italy
| | - Niccolò Firenzuoli
- Unit of Urological Robotic Surgery and Renal Transplantation, Careggi Hospital, University of Florence, Florence, Italy
| | - Eugenia Gallo
- CERFIT, Research and Innovation Center in Phytotherapy and Integrated Medicine, Careggi University Hospital, Florence, Italy
| | | | - Ugo Moretti
- Department of Medicine, University of Verona, Verona, Italy
| | | | - Alfredo Vannacci
- Department of Neurosciences, Psychology, Drug Research and Child Health, Section of Pharmacology and Toxicology, University of Florence, Florence, Italy
- Tuscan Regional Centre of Pharmacovigilance, Florence, Italy
| | - Fabio Firenzuoli
- CERFIT, Research and Innovation Center in Phytotherapy and Integrated Medicine, Careggi University Hospital, Florence, Italy
| | - Niccolò Lombardi
- Department of Neurosciences, Psychology, Drug Research and Child Health, Section of Pharmacology and Toxicology, University of Florence, Florence, Italy
- Tuscan Regional Centre of Pharmacovigilance, Florence, Italy
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Strouphauer E, Parke M, Perez-Sanchez A, Tantry E, Katta R. Functional Foods in Dermatology. Dermatol Pract Concept 2023; 13:dpc.1304a256. [PMID: 37992371 PMCID: PMC10656176 DOI: 10.5826/dpc.1304a256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/23/2023] [Indexed: 11/24/2023] Open
Abstract
Functional foods, defined as whole foods that provide health benefits beyond their nutritional value, may provide multiple dermatologic benefits. Research studies have documented multiple benefits, including enhanced skin barrier function, improved wound healing, radiance, photoprotection, and hormonal regulation. Although the majority of research to date has involved small-scale human interventions or animal models, promising findings have been noted. A number of potential molecular mechanisms have been described, such as the ability of some foods to combat oxidative stress and thus reduce visible and histologic skin changes in response to UV radiation. Additional mechanisms have been described for wound healing, photo-carcinogenesis, and other outcomes. In this review, we discuss the potential dermatologic role of functional foods in order to advocate for larger-scale, evidence-based, human studies to expand this promising field.
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Affiliation(s)
| | - Milbrey Parke
- Department of Internal Medicine Resident, Tulane University School of Medicine, New Orleans, LA, USA
| | - Ariadna Perez-Sanchez
- Department of Internal Medicine, University of Texas Health San Antonio, San Antonio, TX, USA
| | | | - Rajani Katta
- Clinical Professor of Dermatology, McGovern Medical School at UTHealth Houston, Houston, TX, USA
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Jin BR, Lim CY, Kim HJ, Lee M, An HJ. Antioxidant mitoquinone suppresses benign prostatic hyperplasia by regulating the AR-NLRP3 pathway. Redox Biol 2023; 65:102816. [PMID: 37454529 PMCID: PMC10368918 DOI: 10.1016/j.redox.2023.102816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 06/30/2023] [Accepted: 07/10/2023] [Indexed: 07/18/2023] Open
Abstract
Mitoquinone (MitoQ), a mitochondria-targeted antioxidant, has been used to treat several diseases. The present study aimed to investigate the therapeutic effects of MitoQ in benign prostatic hyperplasia (BPH) models and their underlying molecular mechanisms. In this study, we determined that MitoQ inhibited dihydrotestosterone (DHT)-induced cell proliferation and mitochondrial ROS by inhibiting androgen receptor (AR) and NOD-like receptor family pyrin domain-containing 3 (NLRP3) signaling in prostate epithelial cells. Molecular modeling revealed that DHT may combine with AR and NLRP3, and that MitoQ inhibits both AR and NLRP3. AR and NLRP3 downregulation using siRNA showed the linkage among AR, NLRP3, and MitoQ. MitoQ administration alleviated pathological prostate enlargement and exerted anti-proliferative and antioxidant effects by suppressing the AR and NLRP3 signaling pathways in rats with BPH. Hence, our findings demonstrated that MitoQ is an inhibitor of NLPR3 and AR and a therapeutic agent for BPH treatment.
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Affiliation(s)
- Bo-Ram Jin
- Department of Oriental Pharmaceutical Science, College of Pharmacy, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Chae-Young Lim
- Department of Life Science, Dongguk University-Seoul, 32 Dongguk-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, 10326, Republic of Korea
| | - Hyo-Jung Kim
- Department of Oriental Pharmaceutical Science, College of Pharmacy, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Minho Lee
- Department of Life Science, Dongguk University-Seoul, 32 Dongguk-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, 10326, Republic of Korea.
| | - Hyo-Jin An
- Department of Oriental Pharmaceutical Science, College of Pharmacy, Kyung Hee University, Seoul, 02447, Republic of Korea; Department of Integrated Drug Development and Natural Products, Graduate School, Kyung Hee University, Seoul, 02447, Republic of Korea.
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Barrea L, Cacciapuoti S, Megna M, Verde L, Marasca C, Vono R, Camajani E, Colao A, Savastano S, Fabbrocini G, Muscogiuri G. The effect of the ketogenic diet on Acne: Could it be a therapeutic tool? Crit Rev Food Sci Nutr 2023; 64:6850-6869. [PMID: 36779329 DOI: 10.1080/10408398.2023.2176813] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/14/2023]
Abstract
Acne is a chronic inflammatory disease of the pilosebaceous unit resulting from androgen-induced increased sebum production, altered keratinization, inflammation, and bacterial colonization of the hair follicles of the face, neck, chest and back by Propionibacterium acnes. Overall, inflammation and immune responses are strongly implicated in the pathogenesis of acne. Although early colonization with Propionibacterium acnes and family history may play an important role in the disease, it remains unclear exactly what triggers acne and how treatment affects disease progression. The influence of diet on acne disease is a growing research topic, yet few studies have examined the effects of diet on the development and clinical severity of acne disease, and the results have often been contradictory. Interestingly, very low-calorie ketogenic diet (VLCKD) has been associated with both significant reductions in body weight and inflammatory status through the production of ketone bodies and thus it has been expected to reduce the exacerbation of clinical manifestations or even block the trigger of acne disease. Given the paucity of studies regarding the implementation of VLCKD in the management of acne, this review aims to provide evidence from the available scientific literature to support the speculative use of VLCKD in the treatment of acne.
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Affiliation(s)
- Luigi Barrea
- Dipartimento di Scienze Umanistiche, Università Telematica Pegaso, Napoli, Italy
- Centro Italiano per la cura e il Benessere del paziente con Obesità (C.I.B.O), Department of Clinical Medicine and Surgery, Endocrinology Unit, University Medical School of Naples, Naples, Italy
| | - Sara Cacciapuoti
- Department of Clinical Medicine and Surgery, Section of Dermatology, University of Naples Federico II, Naples, Italy
| | - Matteo Megna
- Department of Clinical Medicine and Surgery, Section of Dermatology, University of Naples Federico II, Naples, Italy
| | - Ludovica Verde
- Centro Italiano per la cura e il Benessere del paziente con Obesità (C.I.B.O), Department of Clinical Medicine and Surgery, Endocrinology Unit, University Medical School of Naples, Naples, Italy
- Department of Public Health, University of Naples Federico II, Naples, Italy
| | - Claudio Marasca
- Department of Clinical Medicine and Surgery, Section of Dermatology, University of Naples Federico II, Naples, Italy
- Melanoma, Cancer Immunotherapy and Development Therapeutics Unit, Istituto Nazionale Tumori IRCCS Fondazione "G. Pascale" Via Mariano Semmola, Napoli, Italy
| | | | - Elisabetta Camajani
- PhD Programme in Endocrinological Sciences, Sapienza University of Rome, Rome, Italy
- Department of Human Sciences and Promotion of the Quality of Life, San Raffaele Roma Open University, Rome, Italy
| | - Annamaria Colao
- Centro Italiano per la cura e il Benessere del paziente con Obesità (C.I.B.O), Department of Clinical Medicine and Surgery, Endocrinology Unit, University Medical School of Naples, Naples, Italy
- Dipartimento di Medicina Clinica e Chirurgia, Unit of Endocrinology, Federico II University Medical School of Naples, Naples, Italy
- Cattedra Unesco "Educazione alla salute e allo sviluppo sostenibile", University Federico II, Naples, Italy
| | - Silvia Savastano
- Centro Italiano per la cura e il Benessere del paziente con Obesità (C.I.B.O), Department of Clinical Medicine and Surgery, Endocrinology Unit, University Medical School of Naples, Naples, Italy
- Dipartimento di Medicina Clinica e Chirurgia, Unit of Endocrinology, Federico II University Medical School of Naples, Naples, Italy
| | - Gabriella Fabbrocini
- Department of Clinical Medicine and Surgery, Section of Dermatology, University of Naples Federico II, Naples, Italy
| | - Giovanna Muscogiuri
- Centro Italiano per la cura e il Benessere del paziente con Obesità (C.I.B.O), Department of Clinical Medicine and Surgery, Endocrinology Unit, University Medical School of Naples, Naples, Italy
- Dipartimento di Medicina Clinica e Chirurgia, Unit of Endocrinology, Federico II University Medical School of Naples, Naples, Italy
- Cattedra Unesco "Educazione alla salute e allo sviluppo sostenibile", University Federico II, Naples, Italy
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6
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The Role of Probiotics and Synbiotics on Hirsutism. FERMENTATION 2021. [DOI: 10.3390/fermentation7010010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Probiotics and synbiotics are known to have beneficial effects on human health and disease. Hirsutism, a disorder that is characterised by the presence of coarse terminal hairs in a male-like pattern, is usually caused by elevated androgen levels in blood plasma. This disorder is usually observed in PCOS women and it is linked to insulin resistance (IR). Although idiopathic hirsutism (IH) is not shown to have excess androgen production from the ovarian and adrenal glands, increased 5α-reductase in peripheral tissues and insulin resistance are common observations. The effect of probiotics and synbiotics have been recently studied on PCOS women; androgens were also included in the hormonal groups that were investigated. Only a few studies focus on hirsutism and the potential effect of the beneficial microbes mentioned, whereas the increasing interest on insulin resistance and synbiotics indicate a potential beneficial effect on hirsutism through the management of insulin resistance.
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Bonsou Fozin GR, Deeh Defo PB, Wankeu-Nya M, Ngadjui E, Kamanyi A, Watcho P. Anti-androgenic, anti-oxidant and anti-apoptotic effects of the aqueous and methanol extracts of Pterorhachis zenkeri (Meliaceae): Evidence from in vivo and in vitro studies. Andrologia 2020; 52:e13815. [PMID: 32881120 DOI: 10.1111/and.13815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 07/09/2020] [Accepted: 08/01/2020] [Indexed: 11/30/2022] Open
Abstract
The aim of this study was to evaluate the effects of Pterorhachis zenkeri (Meliaceae) on sex organ growth in immature male rats and, oxidative stress and apoptosis markers in CCL-97 (R2C) Leydig cells. For the in vivo studies, 70 immature male Wistar rats (n = 10/group) were treated for 2 or 4 weeks with: distilled water (10 ml/kg, per os) plus soya oil (1 ml/kg, sc), bicalutamide (10 mg/kg, per os), aqueous or methanol extract of P. zenkeri (10 mg/kg or 62 mg/kg, per os) or testosterone propionate (3 mg/kg, sc). After each treatment period, body and sexual organ weights, plasmatic testosterone, total proteins and total cholesterol levels were measured. In the in vitro test, the effects of the methanol extract of P. zenkeri on cell viability, apoptosis, reactive oxygen species (ROS) production, intracellular calcium release and caspases 3/9 were assessed using CCL-97 Leydig cells. Pterorhachis zenkeri extracts decreased sex organ weights, plasmatic testosterone and protein levels in rats. In the in vitro studies, P. zenkeri inhibited apoptosis, ROS production, calcium release and caspase 3/9 activities. These results suggest that P. zenkeri has anti-androgenic, anti-oxidant and anti-apoptotic activities with methanol extract being the most active and could be an effective alternative for the management of androgen-related diseases.
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Affiliation(s)
| | - Patrick Brice Deeh Defo
- Animal Physiology and Phytopharmacology Laboratory, University of Dschang, Dschang, Cameroon
| | - Modeste Wankeu-Nya
- Department of Animal Organisms Biology, University of Douala, Douala, Cameroon
| | - Esther Ngadjui
- Animal Physiology and Phytopharmacology Laboratory, University of Dschang, Dschang, Cameroon
| | - Albert Kamanyi
- Animal Physiology and Phytopharmacology Laboratory, University of Dschang, Dschang, Cameroon
| | - Pierre Watcho
- Animal Physiology and Phytopharmacology Laboratory, University of Dschang, Dschang, Cameroon
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Dash S, Kanungo SK, Mishra B, Sahoo AC, Senapati AK, Pattnaik S. Evaluation of classical ayurvedic medicine “Sukumaram Kasayam” in a rat model of letrozole induced polycystic ovaries. ADVANCES IN TRADITIONAL MEDICINE 2020. [DOI: 10.1007/s13596-020-00474-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Saranyutanon S, Srivastava SK, Pai S, Singh S, Singh AP. Therapies Targeted to Androgen Receptor Signaling Axis in Prostate Cancer: Progress, Challenges, and Hope. Cancers (Basel) 2019; 12:cancers12010051. [PMID: 31877956 PMCID: PMC7016833 DOI: 10.3390/cancers12010051] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 12/18/2019] [Accepted: 12/18/2019] [Indexed: 12/12/2022] Open
Abstract
Prostate cancer is the mostly commonly diagnosed non-cutaneous malignancy and the second leading cause of cancer-related death affecting men in the United States. Moreover, it disproportionately affects the men of African origin, who exhibit significantly greater incidence and mortality as compared to the men of European origin. Since androgens play an important role in the growth of normal prostate and prostate tumors, targeting of androgen signaling has remained a mainstay for the treatment of aggressive prostate cancer. Over the years, multiple approaches have been evaluated to effectively target the androgen signaling pathway that include direct targeting of the androgens, androgen receptor (AR), AR co-regulators or other alternate mechanisms that impact the outcome of androgen signaling. Several of these approaches are currently in clinical practice, while some are still pending further development and clinical evaluation. This remarkable progress has resulted from extensive laboratory, pre-clinical and clinical efforts, and mechanistic learnings from the therapeutic success and failures. In this review, we describe the importance of androgen signaling in prostate cancer biology and advances made over the years to effectively target this signaling pathway. We also discuss emerging data on the resistance pathways associated with the failure of various androgen signaling- targeted therapies and potential of this knowledge for translation into future therapies for prostate cancer.
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Affiliation(s)
- Sirin Saranyutanon
- Department of Pathology, College of Medicine, University of South Alabama, Mobile, AL 36617, USA; (S.S.)
- Department of Oncologic Sciences, Mitchell Cancer Institute, University of South Alabama, Mobile, AL 36604, USA
| | - Sanjeev Kumar Srivastava
- Department of Pathology, College of Medicine, University of South Alabama, Mobile, AL 36617, USA; (S.S.)
- Department of Oncologic Sciences, Mitchell Cancer Institute, University of South Alabama, Mobile, AL 36604, USA
- Correspondence: (S.K.S.); (A.P.S.); Tel.: +1-251-445-9874 (S.K.S.); +1-251-445-9843 (A.P.S.)
| | - Sachin Pai
- Department of Medical Oncology, Mitchell Cancer Institute, University of South Alabama, Mobile, AL 36604, USA;
| | - Seema Singh
- Department of Pathology, College of Medicine, University of South Alabama, Mobile, AL 36617, USA; (S.S.)
- Department of Oncologic Sciences, Mitchell Cancer Institute, University of South Alabama, Mobile, AL 36604, USA
- Department of Biochemistry and Molecular Biology, College of Medicine, University of South Alabama, Mobile, AL 36688, USA
| | - Ajay Pratap Singh
- Department of Pathology, College of Medicine, University of South Alabama, Mobile, AL 36617, USA; (S.S.)
- Department of Oncologic Sciences, Mitchell Cancer Institute, University of South Alabama, Mobile, AL 36604, USA
- Department of Biochemistry and Molecular Biology, College of Medicine, University of South Alabama, Mobile, AL 36688, USA
- Correspondence: (S.K.S.); (A.P.S.); Tel.: +1-251-445-9874 (S.K.S.); +1-251-445-9843 (A.P.S.)
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Effect of Foeniculum vulgare essence on symptoms of polycystic ovarian syndrome (PCOS): A randomized double-blind, placebo-controlled trial. J Herb Med 2019. [DOI: 10.1016/j.hermed.2019.100277] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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11
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Poswal FS, Russell G, Mackonochie M, MacLennan E, Adukwu EC, Rolfe V. Herbal Teas and their Health Benefits: A Scoping Review. PLANT FOODS FOR HUMAN NUTRITION (DORDRECHT, NETHERLANDS) 2019; 74:266-276. [PMID: 31243622 DOI: 10.1007/s11130-019-00750-w] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Herbal teas are used as therapeutic vehicles in many forms of traditional medicine and are a popular global beverage. The purpose of this scoping review was to examine the evidence relating to the clinical efficacy and safety of herbal teas, and to identify the main research themes and gaps in knowledge to inform further work. A scoping review methodology was followed that set out the research question and described the sourcing, selection and analysis of studies. Overall, a total of 145 research publications were retrieved from global bibliographic databases, and after applying exclusion criteria, 21 remained. These studies looked at herbal tea use in female health, diabetes, heart disease and weight loss, with plant species including lavender, chamomile, fenugreek, stinging nettle, spearmint, hibiscus, yerba maté, echinacea and combinations of herbs. Observational studies explored associations between herbal tea consumption and cancer risk, liver health, and the risks linked to the consumption of environmental contaminants in the plant material. Despite plant materials being the basis for drug discovery, and the popularity of herbal teas, the number of articles exploring clinical efficacy and safety is small. In this review we discuss how herbal teas may be beneficial in some areas of clinical and preventative health, and what further research is required to understand whether regular consumption can contribute to healthy living more generally.
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Affiliation(s)
- Fatima S Poswal
- Department of Applied Sciences, University of the West of England, Frenchay Campus, Bristol, BS16 1QY, UK
| | - Grace Russell
- Department of Applied Sciences, University of the West of England, Frenchay Campus, Bristol, BS16 1QY, UK
| | | | - Euan MacLennan
- Pukka Herbs, The Chocolate Factory, Bristol, BS31 2GN, UK
| | - Emmanuel C Adukwu
- Centre for Research in Biosciences, University of the West of England, Frenchay Campus, Bristol, BS16 1QY, UK
| | - Vivien Rolfe
- Pukka Herbs, The Chocolate Factory, Bristol, BS31 2GN, UK.
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Phytochemistry, Chemotaxonomy, Ethnopharmacology, and Nutraceutics of Lamiaceae. STUDIES IN NATURAL PRODUCTS CHEMISTRY 2019. [DOI: 10.1016/b978-0-444-64185-4.00004-6] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Abstract
Endocrine disruption has been gathering increasing attention in the past 25 years as a possible new threat for health and safety. Exposure to endocrine disruptor has been progressively linked with a growing number of increasing disease in the human population. The mechanics through which endocrine disruptors act are not yet completely clear, however a number of pathways have been identified. A key concern is the cumulative and synergic effects that endocrine disruptors could have when mixed in consumer products. We reviewed the available literature to identify known or potential endocrine disruptors, as well as endocrine active substances that could contribute to cumulative effects, in topical consumer products. The number of endocrine actives used daily in consumer products is staggering and even though most if not all are used in concentrations that are considered to be safe, we believe that the possibility of combined effects in mixtures and non-monotonic dose/response is enough to require further precautions. A combined in vitro approach based on existing, validated OECD test methods is suggested to screen consumer products and mixtures for potential interaction with estrogen and androgen hormone receptors, in order to identify products that could have cumulative effects or support their safety concerning direct endocrine disruption capabilities.
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Ajayi A, Abraham K. Understanding the role of estrogen in the development of benign prostatic hyperplasia. AFRICAN JOURNAL OF UROLOGY 2018. [DOI: 10.1016/j.afju.2018.01.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
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Abstract
Apoptosis, the cell’s natural mechanism for death, is a promising target for anticancer therapy. Both the intrinsic and extrinsic pathways use caspases to carry out apoptosis through the cleavage of hundreds of proteins. In cancer, the apoptotic pathway is typically inhibited through a wide variety of means including overexpression of antiapoptotic proteins and under-expression of proapoptotic proteins. Many of these changes cause intrinsic resistance to the most common anticancer therapy, chemotherapy. Promising new anticancer therapies are plant-derived compounds that exhibit anticancer activity through activating the apoptotic pathway.
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Turan F. The Influence of Licorice Root (Glycyrrhiza glabra) on Sex Reversal in Guppy Poecilia reticulata. INTERNATIONAL JOURNAL OF SECONDARY METABOLITE 2017. [DOI: 10.21448/ijsm.370360] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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17
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Zunino V, Meineri G, Bellone G, Vizio B, Prati A, Grandi M, Radice E, Dal Bello F, Medana C. Alcoholic extracts of Epilobium, Urtica dioica and Evernia prunastri with 5-fluorouracil in controlling murine colon carcinoma cell growth in vitro. ACTA ACUST UNITED AC 2017. [DOI: 10.1007/s13596-017-0282-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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18
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Ong M, Peng J, Jin X, Qu X. Chinese Herbal Medicine for the Optimal Management of Polycystic Ovary Syndrome. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2017; 45:405-422. [DOI: 10.1142/s0192415x17500252] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Polycystic ovary syndrome (PCOS) is a complex heterogeneous disorder characterized by androgen excess and ovulatory dysfunction; it is now known to be closely linked to metabolic syndrome. Recent research suggests that insulin resistance plays an important role in the pathogenesis of PCOS which may lead to the excessive production of androgens by ovarian theca cells. Currently there is no single drug that can treat both the reproductive and metabolic complications of the disorder. Existing pharmaceutical agents such as hormonal therapies have been associated with side effects and are not appropriate for PCOS women with infertility. Additionally, insulin sensitizing agents useful for treating the metabolic abnormalities in PCOS have limited efficacy for treating reproductive aspects of the disorder. Chinese herbal medicines have a long history of treating gynaecological problems and infertility and therefore may be a novel approach to the treatment of PCOS. Current research demonstrates that the compounds isolated from herbs have shown beneficial effects for PCOS and when combined in an herbal formula can target both reproductive and metabolic defects simultaneously. Therefore, further investigation into Chinese herbal medicine in the treatment of PCOS is warranted.
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Affiliation(s)
- Madeleine Ong
- School of Life Sciences, University of Technology Sydney, NSW 2007, Australia
| | - Jie Peng
- School of Life Sciences, University of Technology Sydney, NSW 2007, Australia
- Department of Gynaecology and Obstetrics, Suzhou Wuzhong People’s Hospital, Jiangsu Province, People’s Republic of China
| | - Xingliang Jin
- School of Life Sciences, University of Technology Sydney, NSW 2007, Australia
| | - Xianqin Qu
- School of Life Sciences, University of Technology Sydney, NSW 2007, Australia
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Kallifatidis G, Hoy JJ, Lokeshwar BL. Bioactive natural products for chemoprevention and treatment of castration-resistant prostate cancer. Semin Cancer Biol 2016; 40-41:160-169. [PMID: 27370570 DOI: 10.1016/j.semcancer.2016.06.003] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Revised: 06/18/2016] [Accepted: 06/27/2016] [Indexed: 01/30/2023]
Abstract
Prostate cancer (PCa), a hormonally-driven cancer, ranks first in incidence and second in cancer related mortality in men in most Western industrialized countries. Androgen and androgen receptor (AR) are the dominant modulators of PCa growth. Over the last two decades multiple advancements in screening, treatment, surveillance and palliative care of PCa have significantly increased quality of life and survival following diagnosis. However, over 20% of patients initially diagnosed with PCa still develop an aggressive and treatment-refractory disease. Prevention or treatment for hormone-refractory PCa using bioactive compounds from marine sponges, mushrooms, and edible plants either as single agents or as adjuvants to existing therapy, has not been clinically successful. Major advancements have been made in the identification, testing and modification of the existing molecular structures of natural products. Additionally, conjugation of these compounds to novel matrices has enhanced their bio-availability; a big step towards bringing natural products to clinical trials. Natural products derived from edible plants (nutraceuticals), and common folk-medicines might offer advantages over synthetic compounds due to their broader range of targets, as compared to mostly single target synthetic anticancer compounds; e.g. kinase inhibitors. The use of synthetic inhibitors or antibodies that target a single aberrant molecule in cancer cells might be in part responsible for emergence of treatment refractory cancers. Nutraceuticals that target AR signaling (epigallocatechin gallate [EGCG], curcumin, and 5α-reductase inhibitors), AR synthesis (ericifolin, capsaicin and others) or AR degradation (betulinic acid, di-indolyl diamine, sulphoraphane, silibinin and others) are prime candidates for use as adjuvant or mono-therapies. Nutraceuticals target multiple pathophysiological mechanisms involved during cancer development and progression and thus have potential to simultaneously inhibit both prostate cancer growth and metastatic progression (e.g., inhibition of angiogenesis, epithelial-mesenchymal transition (EMT) and proliferation). Given their multi-targeting properties along with relatively lower systemic toxicity, these compounds offer significant therapeutic advantages for prevention and treatment of PCa. This review emphasizes the potential application of some of the well-researched natural compounds that target AR for prevention and therapy of PCa.
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Affiliation(s)
- Georgios Kallifatidis
- Department of Medicine, Georgia Cancer Center and Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - James J Hoy
- Department of Medicine, Georgia Cancer Center and Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Bal L Lokeshwar
- Department of Medicine, Georgia Cancer Center and Medical College of Georgia, Augusta University, Augusta, GA 30912, USA; Biochemistry and Molecular Biology, Georgia Cancer Center and Medical College of Georgia, Augusta University, Augusta, GA 30912, USA; Research Service, Charlie Norwood VA Hospital and Medical Center, Augusta, GA 30912, USA.
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20
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Green tea consumption is associated with reduced incident CHD and improved CHD-related biomarkers in the Dongfeng-Tongji cohort. Sci Rep 2016; 6:24353. [PMID: 27072746 PMCID: PMC4829846 DOI: 10.1038/srep24353] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Accepted: 03/24/2016] [Indexed: 12/22/2022] Open
Abstract
Prospective studies on the association of green tea with risk of coronary heart disease (CHD) incidence were scarce. This study examined whether green tea can reduce CHD incidence and have a beneficial effect on CHD-related risk markers in middle-aged and older Chinese population. We included 19 471 participants who were free of CHD, stroke or cancer at baseline from September 2008 to June 2010, and were followed until October 2013. Cox proportional hazard models were used to examine the hazard ratios (HR) of CHD incidence in relation to green tea consumption. Linear regression models were used to evaluate the effect of green tea on 5-year changes of CHD-related biomarkers. Compared with non-green tea consumers, the multivariable-adjusted HR for CHD was 0.89 (95% CI, 0.81-0.98) in green tea consumers. Particularly, the reduced risk of CHD incidence with green tea consumption was more evident among participants who were male, more than 60 years old, overweight, or with diabetes mellitus. In addition, green tea consumption improved multiple CHD-related risk markers including total cholesterol, HDL-cholesterol, triglycerides, mean platelet volume, and uric acid. In conclusion, green tea consumption was associated with a reduced risk of CHD incidence in the middle-aged and older Chinese populations, and the association might be partly due to altered CHD-related biomarkers.
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Stypuła-Trębas S, Minta M, Radko L, Żmudzki J. Oestrogenic and (anti)androgenic activity of zearalenone and its metabolites in two in vitro yeast bioassays. WORLD MYCOTOXIN J 2016. [DOI: 10.3920/wmj2014.1845] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Selected resorcylic acid lactones (RALs) – zearalenone (ZEA), α-zearalanol (α-ZAL), β-zearalanol (β-ZAL), α-zearalenol (α-ZOL) and β-zearalenol (β-ZOL) were investigated for their oestrogenic and (anti)androgenic activity using two in vitro RIKILT yeast Estrogen and Androgen bioAssays. Our results show that all tested compounds are able to induce hERα-dependent transcription and the rank of their potencies, based on EC50 values is as follows: α-ZOL > α-ZAL > ZEA > β-ZAL > β-ZOL. None of the tested compounds appeared to be androgenic when tested individually at concentrations ranging from 0.1 pM to 0.1 mM. However, all RALs inhibited 17β-testosterone-induced transcriptional activity. The highest antiandrogenic potential showed α-ZOL, β-ZAL and β-ZOL with the IC50 of 6.2 μM, 11.5 μM and 15.2 μM, respectively. When compared with flutamide, for which a relative antiandrogenic potency (RAAP) was assumed as 100%, the corresponding RAAPs for α-ZOL, β-ZAL and β-ZOL were 220, 119 and 89.8%, respectively. In summary, our study revealed that RALs possess not only oestrogenic, but also antiandrogenic activity. Further research is warranted to clarify the role of disruption of androgen receptor signalling in humans and animals.
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Affiliation(s)
- S. Stypuła-Trębas
- Department of Pharmacology and Toxicology, National Veterinary Research Institute, 24-100 Pulawy, Poland
| | - M. Minta
- Department of Pharmacology and Toxicology, National Veterinary Research Institute, 24-100 Pulawy, Poland
| | - L. Radko
- Department of Pharmacology and Toxicology, National Veterinary Research Institute, 24-100 Pulawy, Poland
| | - J. Żmudzki
- Department of Pharmacology and Toxicology, National Veterinary Research Institute, 24-100 Pulawy, Poland
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Hehir MP, Morrison JJ. Paeoniflorin, a novel heat-shock protein inducing compound, and human myometrial contractility in vitro. J Obstet Gynaecol Res 2015; 42:302-6. [PMID: 26643660 DOI: 10.1111/jog.12895] [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] [Received: 04/15/2015] [Revised: 08/17/2015] [Accepted: 10/05/2015] [Indexed: 12/28/2022]
Abstract
AIM Heat shock proteins (HSPs) are synthesized in virtually all organisms in response to increases in temperature. They are associated with a relaxant effect on the human myometrium and are present in decreased concentration in the myometrium at the time of labor. Paeoniflorin is derived from Paeonia lactiflora and has been shown to induce the synthesis of HSPs in cultured mammalian cells. The purpose of the study was to evaluate the effect of paeoniflorin on human uterine contractility. MATERIAL AND METHODS Samples of human myometrium were taken at lower segment cesarean section. Dissected muscle strips were suspended under isometric conditions and exposed to cumulative additions of paeoniflorin in concentrations ranging from 1 nmol/L to 10 mol/L. Control experiments were simultaneously performed. RESULTS Paeoniflorin was found to exert an inhibitory effect on spontaneous and agonist-induced contractions compared to control strips. The mean maximal inhibition values were: 42.21% ± 9.26 for spontaneous contractions (n = 6; P < 0.0001) and 47.84% ± 9.05 for oxytocin-induced contractions (n = 6; P < 0.0001). CONCLUSION The HSP inducing compound, paeoniflorin, had a relaxant effect on human uterine contractility in vitro. These results reinforce the fact that HSPs may play a physiological role in the onset of labor and may also provide future targets for novel tocolytic treatments.
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Affiliation(s)
- Mark P Hehir
- NUI Galway, Obstetrics and Gynaecology, Clinical Science Institute, Newcastle, Galway, Ireland
| | - John J Morrison
- NUI Galway, Obstetrics and Gynaecology, Clinical Science Institute, Newcastle, Galway, Ireland
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Complementary Therapies for Idiopathic Hirsutism: Topical Licorice as Promising Option. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 2015:659041. [PMID: 26273313 PMCID: PMC4530245 DOI: 10.1155/2015/659041] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Revised: 06/09/2015] [Accepted: 07/02/2015] [Indexed: 11/29/2022]
Abstract
Hirsutism is one of the most prevalent health problems in women. The aim of the study was to compare the effect of 755 nm alexandrite hair removal laser with that of alexandrite laser plus topical licorice on the improvement of idiopathic hirsutism. A double-blind, randomized placebo-controlled study was performed on 90 female subjects. The patients were divided into two groups: alexandrite laser plus 15% licorice gel (group A) and placebo (group B). Each subject received one of both products over one side of the face, twice daily for 24 weeks on the hirsute locations. Each group underwent five sessions of alexandrite laser at 6-week intervals. To minimize the effects of confounding variables, the test was performed on two separate zones of patients' skin. The mean ± SD numbers of terminal hairs in group A were 7.05 ± 4.55 for zone 1 and 6.06 ± 3.70 for zone 2. In group B, they were 3.18 ± 1.75 for zone 1 and 2.49 ± 1.63 for zone 2. The difference in the mean number of terminal hairs was statistically significant between the two groups (p < 0.001), and there were no serious adverse reactions. The treatment of idiopathic hirsutism with 755 nm alexandrite laser plus topical licorice is more effective than alexandrite laser only.
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Arentz S, Abbott JA, Smith CA, Bensoussan A. Herbal medicine for the management of polycystic ovary syndrome (PCOS) and associated oligo/amenorrhoea and hyperandrogenism; a review of the laboratory evidence for effects with corroborative clinical findings. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2014; 14:511. [PMID: 25524718 PMCID: PMC4528347 DOI: 10.1186/1472-6882-14-511] [Citation(s) in RCA: 91] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Accepted: 12/09/2014] [Indexed: 12/20/2022]
Abstract
BACKGROUND Polycystic ovary syndrome (PCOS) is a prevalent, complex endocrine disorder characterised by polycystic ovaries, chronic anovulation and hyperandrogenism leading to symptoms of irregular menstrual cycles, hirsutism, acne and infertility. Evidence based medical management emphasises a multidisciplinary approach for PCOS, as conventional pharmaceutical treatment addresses single symptoms, may be contra-indicated, is often associated with side effects and not effective in some cases. In addition women with PCOS have expressed a strong desire for alternative treatments. This review examines the reproductive endocrine effects in PCOS for an alternative treatment, herbal medicine. The aim of this review was to identify consistent evidence from both pre-clinical and clinical research, to add to the evidence base for herbal medicine in PCOS (and associated oligo/amenorrhoea and hyperandrogenism) and to inform herbal selection in the provision clinical care for these common conditions. METHODS We undertook two searches of the scientific literature. The first search sought pre-clinical studies which explained the reproductive endocrine effects of whole herbal extracts in oligo/amenorrhoea, hyperandrogenism and PCOS. Herbal medicines from the first search informed key words for the second search. The second search sought clinical studies, which corroborated laboratory findings. Subjects included women with PCOS, menstrual irregularities and hyperandrogenism. RESULTS A total of 33 studies were included in this review. Eighteen pre-clinical studies reported mechanisms of effect and fifteen clinical studies corroborated pre-clinical findings, including eight randomised controlled trials, and 762 women with menstrual irregularities, hyperandrogenism and/or PCOS. Interventions included herbal extracts of Vitex agnus-castus, Cimicifuga racemosa, Tribulus terrestris, Glycyrrhiza spp., Paeonia lactiflora and Cinnamomum cassia. Endocrine outcomes included reduced luteinising hormone (LH), prolactin, fasting insulin and testosterone. There was evidence for the regulation of ovulation, improved metabolic hormone profile and improved fertility outcomes in PCOS. There was evidence for an equivalent effect of two herbal medicines and the pharmaceutical agents bromocriptine (and Vitex agnus-castus) and clomiphene citrate (and Cimicifuga racemosa). There was less robust evidence for the complementary combination of spirinolactone and Glycyrrhiza spp. for hyperandrogenism. CONCLUSIONS Preclinical and clinical studies provide evidence that six herbal medicines may have beneficial effects for women with oligo/amenorrhea, hyperandrogenism and PCOS. However the quantity of pre-clinical data was limited, and the quality of clinical evidence was variable. Further pre-clinical studies are needed to explain the effects of herbal medicines not included in this review with current clinical evidence but an absence of pre-clinical data.
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Affiliation(s)
- Susan Arentz
- National Institute of Complementary Medicine, University of Western, Locked Bag 1797, Penrith South, NSW, 2751, Sydney, Australia.
| | - Jason Anthony Abbott
- School of Women's and Children's Health, University of New South Wales, Sydney, Sydney, Australia.
| | - Caroline Anne Smith
- National Institute of Complementary Medicine (NICM), University of Western Sydney, Sydney, Australia.
| | - Alan Bensoussan
- National Institute of Complementary Medicine (NICM), University of Western Sydney, Sydney, Australia.
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Rooney S, Pendry B. Phytotherapy for Polycystic Ovarian Syndrome: A review of the literature and evaluation of practitioners’ experiences. J Herb Med 2014. [DOI: 10.1016/j.hermed.2014.05.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Kirk J, Dunker KS. Dietary counseling: the ingredient for successfully addressing the use of herbal supplements and probiotics in chronic kidney disease. Adv Chronic Kidney Dis 2014; 21:377-84. [PMID: 24969391 DOI: 10.1053/j.ackd.2014.05.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2013] [Revised: 03/18/2014] [Accepted: 05/05/2014] [Indexed: 11/11/2022]
Abstract
Globally, herbal medicines represent a $60 billion industry, and they account for approximately 20% of the overall drug market. Herbs (or herbals) that improve the taste of foods as flavor enhancement spices can generally be used safely by the CKD patient population. However, many herbals are sold as dietary supplements for medicinal use, and these are regulated as foods not drugs, thus allowing herbal supplements to be sold without premarket evaluation or approval by the Food and Drug Administration. In the absence of required testing, many herbal supplements are manufactured inconsistently with wide variations in composition. It is essential for the nephrology practitioner to assess CKD patients regarding their use of these products to understand their risks and benefits and to educate patients and families. This article will discuss some of the more commonly used products and their potential positive and adverse effects on CKD patients.
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