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Franco JVA, Trivisonno LF, Sgarbossa N, Alvez GA, Fieiras C, Escobar Liquitay CM, Jung JH. Serenoa repens for the Treatment of Lower Urinary Tract Symptoms Due to Benign Prostatic Enlargement: An Updated Cochrane Review. World J Mens Health 2024; 42:42.e11. [PMID: 38164033 DOI: 10.5534/wjmh.230222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Accepted: 08/27/2023] [Indexed: 01/03/2024] Open
Abstract
PURPOSE To assess the effects of Serenoa repens in the treatment of men with lower urinary tract symptoms (LUTS) consistent with benign prostatic hyperplasia (BPH). MATERIALS AND METHODS We performed a comprehensive search using multiple databases up to September 2022 with no language or publication status restrictions. We included parallel-group randomized controlled trials of participants with BPH who were treated with Serenoa repens or placebo/no treatment. We used standard Cochrane methods, including a GRADE assessment of the certainty of the evidence (CoE). RESULTS We included 27 studies involving a total of 4,656 participants. Serenoa repens results in little to no difference in urologic symptoms at short-term follow-up (International Prostate Symptom Score [IPSS]: mean difference [MD] -0.90, 95% confidence interval [CI] -1.74 to -0.07; I²=68%; 9 studies, 1,681 participants; high CoE). Serenoa repens results in little to no difference in the quality of life at short-term follow-up (high CoE). Serenoa repens probably results in little to no difference in adverse events (moderate CoE). Different phytotherapeutic agents that include Serenoa repens may result in little to no difference in urologic symptoms compared to placebo at short-term follow-up (IPSS: MD -2.41, 95% CI -4.54 to -0.29; I²=67%; 4 studies, 460 participants; low CoE). We are very uncertain about the effects of these agents on quality of life (very low CoE). These agents may result in little to no difference in the occurrence of adverse events (low CoE). CONCLUSIONS Serenoa repens alone provides little to no benefits for men with LUTS due to benign prostatic enlargement. There is more uncertainty about the role of Serenoa repens in combination with other phytotherapeutic agents.
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Affiliation(s)
- Juan Víctor Ariel Franco
- Institute of General Practice, Medical Faculty, Heinrich Heine University Düsseldorf, Düsseldorf, Germany.
| | | | | | - Gustavo Ariel Alvez
- Instituto Universitario Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - Cecilia Fieiras
- Instituto Universitario Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | | | - Jae Hung Jung
- Department of Urology, Yonsei University Wonju College of Medicine, Wonju, Korea
- Center of Evidence Based Medicine, Institute of Convergence Science, Yonsei University, Seoul, Korea
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Franco JV, Trivisonno L, Sgarbossa NJ, Alvez GA, Fieiras C, Escobar Liquitay CM, Jung JH. Serenoa repens for the treatment of lower urinary tract symptoms due to benign prostatic enlargement. Cochrane Database Syst Rev 2023; 6:CD001423. [PMID: 37345871 PMCID: PMC10286776 DOI: 10.1002/14651858.cd001423.pub4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/23/2023]
Abstract
BACKGROUND Benign prostatic hyperplasia (BPH) is a non-malignant enlargement of the prostate, which can lead to obstructive and irritative lower urinary tract symptoms (LUTS). The pharmacologic use of plants and herbs (phytotherapy) for the treatment of LUTS associated with BPH is common. The extract of the berry of the American saw palmetto or dwarf palm plant, Serenoa repens (SR), which is also known by its botanical name of Sabal serrulatum, is one of several phytotherapeutic agents available for the treatment of BPH. OBJECTIVES To assess the effects of Serenoa repens in the treatment of men with LUTS consistent with BPH. SEARCH METHODS We performed a comprehensive search of multiple databases (the Cochrane Library, MEDLINE, Embase, Scopus, Web of Science, and LILACS), trials registries, other sources of grey literature, and conference proceedings published up to 16 September 2022, with no restrictions on language or publication status. SELECTION CRITERIA We included randomized controlled trials of participants with BPH who were treated with Serenoa repens or placebo/no treatment. DATA COLLECTION AND ANALYSIS Two review authors independently assessed studies for inclusion at each stage and undertook data extraction and risk of bias assessment and GRADE assessment of the certainty of the evidence. We considered review outcomes measured up to 12 months after randomization as short term, and beyond 12 months as long term. Our main outcomes included urologic symptom scores, quality of life, and adverse events. MAIN RESULTS For this update, we narrowed the review question to only comparisons with placebo. We included 27 studies (of which 9 were new) involving a total of 4656 participants, 19 studies comparing Serenoa repens with placebo, and 8 studies comparing Serenoa repens in combination with other phytotherapeutic agents versus placebo. Most studies included men aged > 50 (mean age range 52 to 68) with moderate urologic symptoms (International Prostate Symptom Score [IPSS] range 8 to 19). Ten studies were funded by the pharmaceutical industry; two studies were funded by government agencies; and the remaining studies did not specify funding sources. Serenoa repens versus placebo or no intervention Results for this comparison are based on predefined sensitivity analyses limited to studies at low risk of bias. Serenoa repens results in little to no difference in urologic symptoms at short-term follow-up (3 to 6 months; IPSS score range 0 to 35, higher scores indicate worse symptoms; mean difference (MD) -0.90, 95% confidence interval (CI) -1.74 to -0.07; I2 = 68%; 9 studies, 1681 participants; high-certainty evidence). Serenoa repens results in little to no difference in the quality of life at short-term follow-up (3 to 6 months; IPSS quality of life domain range 0 to 6, higher scores indicate worse quality of life; MD -0.20, 95% CI -0.40 to -0.00; I2 = 39%; 5 studies, 1001 participants; high-certainty evidence). Serenoa repens probably results in little to no difference in adverse events (1 to 17 months; risk ratio (RR) 1.01, 95% CI 0.77 to 1.31; I2 = 18%; 12 studies, 2399 participants; moderate-certainty evidence). Based on 164 cases per 1000 men in the placebo group, this corresponds to 2 more (38 fewer to 51 more) per 1000 men in the Serenoa repens group. Serenoa repens results in little to no difference in urologic symptoms at long-term follow-up (12 to 17 months, IPSS score, MD 0.07, 95% CI -0.75 to 0.88; I2 = 34%; 3 studies, 898 participants; high-certainty evidence). Serenoa repens results in little to no difference in quality of life at long-term follow-up (12 to 17 months, IPSS quality of life, MD -0.11, 95% CI -0.41 to 0.19; I2 = 65%; 3 studies, 882 participants; high-certainty evidence). There were no data on long-term adverse events for this comparison. Serenoa repens in combination with other phytotherapy versus placebo or no intervention Different phytotherapeutic agents that include Serenoa repens may result in little to no difference in urologic symptoms compared to placebo at short-term follow-up (12 to 24 weeks, IPSS score, MD -2.41, 95% CI -4.54 to -0.29; I2 = 67%; 4 studies, 460 participants; low-certainty evidence). We are very uncertain about the effects of these agents on quality of life (very low-certainty evidence). These agents may result in little to no difference in the occurrence of adverse events; however, the CIs included substantial benefits and harms (12 to 48 weeks, RR 0.91, 95% CI 0.58 to 1.41; I2 = 0%; 4 studies, 481 participants; low-certainty evidence). Based on 132 cases per 1000 men in the placebo group, this corresponds to 12 fewer (55 fewer to 54 more) per 1000 men in the combined phytotherapeutic agents with Serenoa repens group. AUTHORS' CONCLUSIONS Serenoa repens alone provides little to no benefits for men with lower urinary tract symptoms due to benign prostatic enlargement. There is more uncertainty about the role of Serenoa repens in combination with other phytotherapeutic agents.
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Affiliation(s)
- Juan Va Franco
- Institute of General Practice, Medical Faculty, Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany
| | - Leonel Trivisonno
- Department of Health Science, Universidad Nacional de La Matanza, San Justo, Argentina
| | - Nadia J Sgarbossa
- Department of Health Science, Universidad Nacional de La Matanza, San Justo, Argentina
| | - Gustavo Ariel Alvez
- Medical School, Instituto Universitario Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - Cecilia Fieiras
- Medical School, Instituto Universitario Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | | | - Jae Hung Jung
- Department of Urology, Yonsei University Wonju College of Medicine, Wonju, Korea, South
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Khan AU, Khan A, Shal B, Khan S, Khan M, Ahmad R, Riaz M. The critical role of the phytosterols in modulating tumor microenvironment via multiple signaling: A comprehensive molecular approach. Phytother Res 2023; 37:1606-1623. [PMID: 36757068 DOI: 10.1002/ptr.7755] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 12/30/2022] [Accepted: 01/02/2023] [Indexed: 02/10/2023]
Abstract
Cancer is the leading cause of mortality and morbidity worldwide, and its cases are rapidly increasing every year. Several factors contribute to the development of tumorigenesis. including radiation, dietary lifestyle, smoking, environmental, and genetic factors. The cell cycle is regulated by a variety of molecular signaling proteins. However, when the proteins involved in the cell cycle regulation are altered, cellular growth and proliferation are significantly affected. Natural products provide an important source of new drug development for a variety of ailments. including cancer. Phytosterols (PSs) are an important class of natural compounds reported for numerous pharmacological activities, including cancer. Various PSs, such as ergosterol, stigmasterol, sitosterol, withaferin A, etc., have been reported for their anti-cancer activities against a variety of cancer by modulating the tumor microenvironment via molecular signaling pathways discussed within the article. These signaling pathways are associated with the production of pro-inflammatory mediators, growth factors, chemokines, and pro-apoptotic and anti-apoptotic genes. These mediators and their upstream signaling are very active within the variety of tumors and by modulating these signalings, thus PS exhibits promising anti-cancer activities. However, further high-quality studies are needed to firmly establish the clinical efficacy as well the safety of the phytosterols.
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Affiliation(s)
- Ashraf Ullah Khan
- Pharmacological Sciences Research Lab, Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan.,Faculty of Pharmaceutical Sciences, Abasyn University, Peshawar, Pakistan
| | - Adnan Khan
- Pharmacological Sciences Research Lab, Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - Bushra Shal
- Pharmacological Sciences Research Lab, Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan.,Faculty of Health Sciences, IQRA University, Islamabad Campus, (Chak Shahzad), Islamabad, Pakistan
| | - Salman Khan
- Pharmacological Sciences Research Lab, Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - Majid Khan
- Faculty of Pharmaceutical Sciences, Abasyn University, Peshawar, Pakistan
| | - Rizwan Ahmad
- Natural Products & Alternative Medicines College of Clinical Pharmacy, Imam Abdulrahman Bin Faisal University, Dammam, Kingdom of Saudi Arabia
| | - Muhammad Riaz
- Department of Pharmacy, Shaheed Benazir Bhutto University Sheringal, Sheringal, Pakistan
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Jang YJ, Jung HY, Myeong JY, Song KH, Kwon J, Kim D, Park JI. Effects of Alginate Oligosaccharide on Testosterone-Induced Benign Prostatic Hyperplasia in Orchiectomized Rats. Nutrients 2023; 15. [PMID: 36771389 DOI: 10.3390/nu15030682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 01/25/2023] [Accepted: 01/27/2023] [Indexed: 01/31/2023] Open
Abstract
Benign prostatic hyperplasia (BPH) is an age-related disease of the urinary system that affects elderly men. Current treatments for BPH are associated with several adverse effects, thus highlighting the need for alternative agents. Alginate oligosaccharide (AOS), a water-soluble functional oligomer derived from brown algae, inhibits prostate cancer cell proliferation. However, the effects of AOS on BPH and the underlying molecular mechanisms remain unclear. Therefore, here, we aimed to investigate the therapeutic potential of AOS in BPH by using human benign prostatic epithelial cells (BPH-1) and a rat model of testosterone-induced BPH. Treatment with AOS inhibited in vitro and in vivo proliferation of prostatic epithelial cells and the testosterone-induced expression of androgen receptor (AR) and androgen-associated genes, such as those encoding 5α-reductase type 2 and prostate-specific antigen. Oral administration of AOS remarkably reduced the serum levels of dihydrotestosterone (DHT) and testosterone as well as the expression of proliferating cell nuclear antigen, inflammatory cytokines, and enzymes, which showed increased levels in prostatic tissues of rats with testosterone-induced BPH. Taken together, these data demonstrate that AOS suppresses testosterone-induced BPH in rats by downregulating AR and the expression of androgen-associated genes, supporting the hypothesis that AOS might be of potential use for the treatment of BPH.
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5
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Trivisonno LF, Sgarbossa N, Alvez GA, Fieiras C, Escobar Liquitay CM, Jung JH, Franco JVA. Serenoa repens for the treatment of lower urinary tract symptoms due to benign prostatic enlargement: A systematic review and meta-analysis. Investig Clin Urol 2021; 62:520-534. [PMID: 34488251 PMCID: PMC8421998 DOI: 10.4111/icu.20210254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 07/22/2021] [Accepted: 08/05/2021] [Indexed: 12/04/2022] Open
Abstract
PURPOSE To assess the effects of Serenoa repens alone or in combination with other phytotherapy compared to placebo in men with LUTS due to benign prostatic enlargement. MATERIALS AND METHODS Following a registered protocol (CRD42021226655), we searched (December 2020) MEDLINE, CENTRAL, Embase, ClinicalTrials.gov, WHO-ICTRP trials platform and other sources with no restrictions on language, publication date or status. We included randomized controlled trials, and we critically appraised them using the Cochrane Tool for Risk of Bias Assessment (RoB 2). We conducted random-effects meta-analysis when appropriate. The primary outcomes included urinary symptoms score, quality of life, and adverse events. The certainty of the evidence was rated using GRADE. RESULTS We included 27 trials with 4,853 participants. S. repens results in little to no difference in urinary symptoms, quality of life, and adverse events at short- and long-term follow-up. S. repens combined with other phytotherapy may slightly reduce urinary symptoms at short-term follow-up, but the results are uncertain. The results on quality of life and adverse events are also very uncertain. CONCLUSIONS S. repens alone may result in no clinical benefits for men with LUTS. There is greater uncertainty in the effects of S. repens in combination with other phytotherapy.
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Affiliation(s)
| | - Nadia Sgarbossa
- Department of Health Science, Universidad Nacional de La Matanza, San Justo, Buenos Aires, Argentina
| | - Gustavo Ariel Alvez
- Department of Research, Instituto Universitario Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - Cecilia Fieiras
- Department of Research, Instituto Universitario Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | | | - Jae Hung Jung
- Department of Urology, Yonsei University Wonju College of Medicine, Wonju, Korea
- Center of Evidence Based Medicine, Institute of Convergence Science, Yonsei University, Seoul, Korea
| | - Juan Víctor Ariel Franco
- Department of Health Science, Universidad Nacional de La Matanza, San Justo, Buenos Aires, Argentina
- Department of Research, Instituto Universitario Hospital Italiano de Buenos Aires, Buenos Aires, Argentina.
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6
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Grammatikopoulou MG, Gkiouras K, Papageorgiou SΤ, Myrogiannis I, Mykoniatis I, Papamitsou T, Bogdanos DP, Goulis DG. Dietary Factors and Supplements Influencing Prostate Specific-Antigen (PSA) Concentrations in Men with Prostate Cancer and Increased Cancer Risk: An Evidence Analysis Review Based on Randomized Controlled Trials. Nutrients 2020; 12:nu12102985. [PMID: 33003518 PMCID: PMC7600271 DOI: 10.3390/nu12102985] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 09/19/2020] [Accepted: 09/24/2020] [Indexed: 12/15/2022] Open
Abstract
The quest for dietary patterns and supplements efficient in down-regulating prostate-specific antigen (PSA) concentrations among men with prostate cancer (PCa) or increased PCa risk has been long. Several antioxidants, including lycopene, selenium, curcumin, coenzyme Q10, phytoestrogens (including isoflavones and flavonoids), green tea catechins, cernitin, vitamins (C, E, D) and multivitamins, medicinal mushrooms (Ganoderma lucidum), fruit extracts (saw palmetto, cranberries, pomegranate), walnuts and fatty acids, as well as combined supplementations of all, have been examined in randomized controlled trials (RCTs) in humans, on the primary, secondary, and tertiary PCa prevention level. Despite the plethora of trials and the variety of examined interventions, the evidence supporting the efficacy of most dietary factors appears inadequate to recommend their use.
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Affiliation(s)
- Maria G. Grammatikopoulou
- Department of Rheumatology and Clinical Immunology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Biopolis, GR-41334 Larissa, Greece; (M.G.G.); (D.P.B.)
| | - Konstantinos Gkiouras
- Department of Rheumatology and Clinical Immunology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Biopolis, GR-41334 Larissa, Greece; (M.G.G.); (D.P.B.)
- Medical School, Faculty of Health Sciences, Aristotle University of Thessaloniki, University Campus, GR-54124 Thessaloniki, Greece; (S.Τ.P.); (I.M.)
- Correspondence: (K.G.); (D.G.G.)
| | - Stefanos Τ. Papageorgiou
- Medical School, Faculty of Health Sciences, Aristotle University of Thessaloniki, University Campus, GR-54124 Thessaloniki, Greece; (S.Τ.P.); (I.M.)
| | - Ioannis Myrogiannis
- Medical School, Faculty of Health Sciences, Aristotle University of Thessaloniki, University Campus, GR-54124 Thessaloniki, Greece; (S.Τ.P.); (I.M.)
| | - Ioannis Mykoniatis
- Institute for the Study of Urological Diseases (ISUD), 33 Nikis Avenue, GR-54622 Thessaloniki, Greece;
- 1st Department of Urology and Center for Sexual and Reproductive Health, G. Gennimatas—Aghios Demetrius General Hospital, 41 Ethnikis Amynis Street, Aristotle University of Thessaloniki, GR-54635 Thessaloniki, Greece
| | - Theodora Papamitsou
- Laboratory of Histology and Embryology, Medical School, Faculty of Health Sciences, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece;
| | - Dimitrios P. Bogdanos
- Department of Rheumatology and Clinical Immunology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Biopolis, GR-41334 Larissa, Greece; (M.G.G.); (D.P.B.)
- Division of Transplantation, Immunology and Mucosal Biology, MRC Centre for Transplantation, King’s College London Medical School, London SE5 9RS, UK
| | - Dimitrios G. Goulis
- Unit of Reproductive Endocrinology, 1st Department of Obstetrics and Gynecology, Medical School, Faculty of Health Sciences, Aristotle University of Thessaloniki, GR-56429 Thessaloniki, Greece
- Correspondence: (K.G.); (D.G.G.)
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Kim NH, Jegal J, Kim YN, Heo JD, Rho JR, Yang MH, Jeong EJ. The Effects of Aronia melanocarpa Extract on Testosterone-Induced Benign Prostatic Hyperplasia in Rats, and Quantitative Analysis of Major Constituents Depending on Extract Conditions. Nutrients 2020; 12:nu12061575. [PMID: 32481550 PMCID: PMC7352698 DOI: 10.3390/nu12061575] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 05/25/2020] [Accepted: 05/26/2020] [Indexed: 11/16/2022] Open
Abstract
This study aimed to investigate the beneficial effects of A. melanocarpa on testosterone propionate (TP)-induced benign prostatic hyperplasia (BPH) in Wistar rats. Moreover, the bioactive constituents in the extract were determined using LC/MS and HPLC analyses. The dried fruits of A. melanocarpa were extracted using accelerated solvent extraction (ASE) under different extract conditions (temperature, 30 C or 100 C; extract solvent, 60% or 100% ethanol) to yield four extracts (T1~T4). Of the four A. melanocarpa extracts, T1 extracted under the condition of 100% ethanol/low temperature (30 C) exhibited the greatest inhibitory activity on TP-induced prostatic hyperplasia in rats. The administration of T1 (100 mg/kg body weight, p.o.) for six weeks attenuated TP-induced prostate enlargement and reduced the levels of dihydrotestosterone (DHT) and 5α-reductase in both serum and prostate tissue. The suppression of PCNA mRNA expression in prostate tissue was remarkable in T1-treated rats. In LC/MS analysis, the levels of main anthocyanins and phenolics were significantly higher in T1 than in the other extracts. Furthermore, the quantitative study showed that the contents of cyanidin-3-glucose and cyanidin-3-xylose in T1 exhibited 1.27~1.67 and 1.10~1.26 folds higher compared to those in the other extracts. These findings demonstrated that A. melanocarpa extract containing anthocyanins as bioactive constituents attenuated the development of testosterone-induced prostatic hyperplasia, and suggested that this extract has therapeutic potential to treat prostate enlargement and BPH.
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Affiliation(s)
- Na-Hyun Kim
- Gyeongnam Department of Environment & Toxicology, Korea Institute of Toxicology, 17 Jegok-gil, Munsan-eup, Jinju-si, Gyeongsangnam-do 52834, Korea; (N.-H.K.); (J.-D.H.)
| | - Jonghwan Jegal
- College of Pharmacy, Pusan National University, Busan 46241, Korea;
| | - Yun Na Kim
- Department of Agronomy and Medicinal Plant Resources, Gyeongnam National University of Science and Technology, Jinju 52725, Korea;
| | - Jeong-Doo Heo
- Gyeongnam Department of Environment & Toxicology, Korea Institute of Toxicology, 17 Jegok-gil, Munsan-eup, Jinju-si, Gyeongsangnam-do 52834, Korea; (N.-H.K.); (J.-D.H.)
| | - Jung-Rae Rho
- Department of Oceanography, Kunsan National University, Kunsan 54150, Korea;
| | - Min Hye Yang
- College of Pharmacy, Pusan National University, Busan 46241, Korea;
- Correspondence: (M.H.Y.); (E.J.J.); Tel.: +82-51-510-2811 (M.H.Y.); +82-55-751-3224 (E.J.J.); Fax: +82-51-513-6754 (M.H.Y.); +82-55-751-3229 (E.J.J.)
| | - Eun Ju Jeong
- Department of Agronomy and Medicinal Plant Resources, Gyeongnam National University of Science and Technology, Jinju 52725, Korea;
- Correspondence: (M.H.Y.); (E.J.J.); Tel.: +82-51-510-2811 (M.H.Y.); +82-55-751-3224 (E.J.J.); Fax: +82-51-513-6754 (M.H.Y.); +82-55-751-3229 (E.J.J.)
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Dizeyi N, Mattisson IY, Ramnemark L, Grabe M, Abrahamsson PA. The effects of Cernitin® on inflammatory parameters and benign prostatic hyperplasia: An in vitro study. Phytother Res 2019; 33:2457-2464. [PMID: 31342610 DOI: 10.1002/ptr.6438] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Revised: 06/12/2019] [Accepted: 06/20/2019] [Indexed: 11/09/2022]
Abstract
The pollen extract Cernitin® is widely used for treatment of benign prostatic hyperplasia (BPH) and non-bacterial chronin prostatitis. However, little is known about the underlying molecular mechanisms to explain the clinical effects of Cernitin®. In this study, we sought to investigate the cellular mechanisms by which Cernitin® induces its effects on human prostatic cell lines BPH-1 and WPMY-1 and primary human peripheral blood mononuclear cells (hPBMCs) in vitro. We examined the effects of Cernitin® formulas T60 and GBX on the protein expression, proliferation, and cytokines production. Results revealed that Cernitin® upregulated antiinflammatory cytokine interleukin (IL)-10 and its receptors IL-10RA and IL-10B in addition to the upregulation of tumour necrosis factor-related apoptosis-inducing ligand in hPBMC. Interestingly, the levels of proinflammatory cytokines IL-6 and IL-8 were also increased. Furthermore, Cernitin® had significantly increased the level of IL-10 in BPH-1 and WPMY-1 cells. The level of IL-6 was also significantly increased in these cells although both T60 and GBX inhibited STAT-3 phosphorylation. Moreover, Cernitin® formulas had significantly reduced androgen receptor and prostate-specific antigen protein expression in stromal cells (p < .05). Treatment with GBX and T60 had significantly inhibited proliferation of BPH (p < .001) and stromal cells (p < .05), in a dose-dependent manner. Taken together, treatment with Cernitin® showed to regulate cytokines level in both prostatic cell lines and hPBMCs and it was associated with decreased androgen receptor and prostate-specific antigen levels WPMY-1 cells.
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Affiliation(s)
- Nishtman Dizeyi
- Department of Translational Medicine, Lund University, Malmö, Sweden.,Preclinical Research, AB Cernelle, Ängelholm, Sweden
| | - Ingrid Yao Mattisson
- Department of Clinical Sciences Medicine, Cardiovascular Research Unit, Lund University, Malmö, Sweden
| | | | - Magnus Grabe
- Department of Translational Medicine, Urologic Cancer Research, Lund University, Malmö, Sweden
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9
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Wyatt GK, Sikorskii A, Safikhani A, McVary KT, Herman J. Saw Palmetto for Symptom Management During Radiation Therapy for Prostate Cancer. J Pain Symptom Manage 2016; 51:1046-54. [PMID: 26891611 DOI: 10.1016/j.jpainsymman.2015.12.315] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2015] [Revised: 12/17/2015] [Accepted: 12/24/2015] [Indexed: 10/22/2022]
Abstract
CONTEXT Lower urinary tract symptoms (LUTSs) affect 75%-80% of men undergoing radiation therapy (RT) for prostate cancer. OBJECTIVES To determine the safety, maximum tolerated dose (MTD), and preliminary efficacy of Serenoa repens commonly known as saw palmetto (SP) for management of LUTS during RT for prostate cancer. METHODS The dose finding phase used the time-to-event continual reassessment method to evaluate safety of three doses (320, 640, and 960 mg) of SP. Dose-limiting toxicities were assessed for 22 weeks using the Common Terminology Criteria for Adverse Events for nausea, gastritis, and anorexia. The exploratory randomized controlled trial phase assessed preliminary efficacy of the MTD against placebo. The primary outcome of LUTS was measured over 22 weeks using the International Prostate Symptom Score. Additional longitudinal assessments included quality of life measured with the Functional Assessment of Cancer Therapy-Prostate. RESULTS The dose finding phase was completed by 27 men who reported no dose-limiting toxicities and with 20 participants at the MTD of 960 mg daily. The exploratory randomized controlled trial phase included 21 men, and no statistically significant differences in the International Prostate Symptom Score were observed. The prostate-specific concerns score of the Functional Assessment of Cancer Therapy-Prostate improved in the SP group (P = 0.03). Of 11 men in the placebo group, two received physician-prescribed medications to manage LUTS compared with none of the 10 men in the SP group. CONCLUSION SP at 960 mg may be a safe herbal supplement, but its efficacy in managing LUTS during RT needs further investigation.
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Affiliation(s)
- Gwen K Wyatt
- College of Nursing, Michigan State University, East Lansing, Michigan, USA.
| | - Alla Sikorskii
- Department of Statistics and Probability, Michigan State University, East Lansing, Michigan, USA
| | | | - Kevin T McVary
- School of Medicine, Southern Illinois University, Springfield, Illinois, USA
| | - James Herman
- Sparrow Radiation Oncology, Sparrow Health System, Lansing, Michigan, USA
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Patel JKK, Dudhamal TS, Gupta SK, Mahanta V. Efficacy of Kanchanara Guggulu and Matra Basti of Dhanyaka Gokshura Ghrita in Mootraghata (benign prostatic hyperplasia). Ayu 2016; 36:138-44. [PMID: 27011713 PMCID: PMC4784122 DOI: 10.4103/0974-8520.175552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Background: Benign prostatic hyperplasia (BPH), a senile disorder affects male of and above 40 years characterized by retention, incomplete voiding, dribbling, hesitancy, and incontinence of urine. This condition is comparable with Mootraghata in Ayurveda. Surgical intervention has been accepted as standard management, but has acute cystitis, acute epididymitis, erectile dysfunction, retrograde ejaculation, etc. as complications. Conservative treatment with modern medicine is also associated with side effects. Hence, to avoid such complications and improve the quality of life in senile age, conservative management with Ayurveda is attempted. Aim: To evaluate clinical efficacy of Kanchanara Guggulu and Dhanyaka Gokshura Ghrita Matra Basti in Mootraghata. Materials and Methods: Total 30 patients having signs and symptoms of BPH were selected from OPD and IPD of Shalya Tantra and enrolled equally into three groups (n = 10). Patients of Group A were administered with Kanchanara Guggulu (500 mg, 3 times a day orally), Group B were with Dhanyaka Gokshura Ghrita Matra Basti, while patients of Group C were administered both the drugs for 21 days. International prostate symptom score (IPSS) was used to assess the efficacy. paired and unpaired “t” test, Chi-square test were applied for significance. Results: In IPSS, Group B had shown the better results (84.27%) than the Group A (72.68%) and Group C (82.10%). In all objective parameters, Group C had shown better effect (23.60%) than Group A (15.70%) and Group B (18.24%). Symptomatic relief was better in Group B than Groups A and C. Comparison between three groups on objective parameters was better in Group C than in Group A and B. Conclusion: Kanchanara Guggulu orally and Dhanyaka Gokshura Ghrita Matra Basti is effective conservative management for symptomatic relief in BPH of senile age.
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Affiliation(s)
- Joyal Kumar K Patel
- Department of Shalya Tantra, Institute for Post Graduate Teaching and Research in Ayurveda, Jamnagar, Gujarat, India
| | - Tukaram S Dudhamal
- Department of Shalya Tantra, Institute for Post Graduate Teaching and Research in Ayurveda, Jamnagar, Gujarat, India
| | - Sanjay Kumar Gupta
- Department of Shalya Tantra, Institute for Post Graduate Teaching and Research in Ayurveda, Jamnagar, Gujarat, India
| | - Vyasadeva Mahanta
- Department of Shalya Tantra, Institute for Post Graduate Teaching and Research in Ayurveda, Jamnagar, Gujarat, India
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Swaroop A, Bagchi M, Kumar P, Preuss HG, Bagchi D. Safety and efficacy of a novel Prunus domestica extract (Sitoprin, CR002) on testosterone-induced benign prostatic hyperplasia (BPH) in male Wistar rats. Toxicol Mech Methods 2015; 25:653-64. [DOI: 10.3109/15376516.2015.1077362] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
| | | | - Pawan Kumar
- Chemical Resources, Panchkula, Haryana, India,
| | - Harry G. Preuss
- Departments of Biochemistry, Medicine and Pathology, Georgetown University Medical Center, Washington, DC, USA, and
| | - Debasis Bagchi
- Cepham Research Center, Piscataway, NJ, USA,
- Department of Pharmacological and Pharmaceutical Sciences, University of Houston College of Pharmacy, Houston, TX, USA
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Wang R, Kobayashi Y, Lin Y, Rauwald HW, Fang L, Qiao H, Kuchta K. A phytosterol enriched refined extract of Brassica campestris L. pollen significantly improves benign prostatic hyperplasia (BPH) in a rat model as compared to the classical TCM pollen preparation Qianlie Kang Pule'an Tablets. Phytomedicine 2015; 22:145-152. [PMID: 25636883 DOI: 10.1016/j.phymed.2014.10.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Revised: 08/22/2014] [Accepted: 10/15/2014] [Indexed: 06/04/2023]
Abstract
In Qinghai Province, the Brassica campestris L. pollen preparation Qianlie Kang Pule'an Tablet (QKPT) is traditionally used for BPH therapy. However, in QKPT the content of supposedly active phytosterols is relatively low at 2.59%, necessitating high doses for successful therapy. Therefore, a phytosterol enriched (4.54%) refined extract of B. campestris pollen (PE) was developed and compared with QKPT in a BPH rat model. Six groups of rats (n=8 each), namely sham-operated distilled water control, castrated distilled water control, castrated QKPT 2.0g/kg, castrated PE 0.1g/kg, castrated PE 0.2g/kg, and castrated PE 0.4g/kg, were intragastrically treated with the respective daily doses. Testosterone propionate (0.3mg/day) was administered to all castrated rats, while the sham-operated group received placebo injections. After 30 days, the animals were sacrificed and prostates as well as seminal vesicles excised and weighted in order to calculate prostate volume index (PVI) as well as prostate index (PI) and seminal vesicle index (SVI), defined as organ weight in g per 100g body weight. Compared with sham-operated controls, PI (p<0.01), PVI (p<0.01), and SVI (p<0.01) were all significantly increased in all castrated, testosterone treated rats. After treatment with PE at 0.4 and 0.2g/kg or QKPT at 2.0g/kg per day, both indices were significantly reduced (p<0.01) as compared to the castrated distilled water control. For PE at 0.1g/kg per day only PI was significantly reduced (p<0.05). At the highest PE concentration of 0.4g/kg per day both PI and SVI were also significantly reduced when compared to the QKPT group (p<0.05). Both PE and QKPT demonstrated curative effects against BPH in the applied animal model. In its highest dose at 0.4g/kg per day, PE was clearly superior to QKPT.
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Affiliation(s)
- Ruwei Wang
- Zhejiang CONBA Pharmaceutical & Drug Research Development Corporation, Hangzhou 310052, PR China; Zhejiang Key Laboratory for Traditional Chinese Medicine, Pharmaceutical Technology, Hangzhou 310052, PR China
| | - Yuta Kobayashi
- Faculty of Medicine, Shimane University, 693-8501 Izumo, Enya 89-1, Japan
| | - Yu Lin
- Medical Corporation Soujikai, 541-0046 Osaka, Chuo-ku, Hirano 2-2-2, Japan
| | - Hans Wilhelm Rauwald
- Department of Pharmaceutical Biology, Leipzig University, Johannisallee 23, 04103 Leipzig, Germany
| | - Ling Fang
- Zhejiang CONBA Pharmaceutical & Drug Research Development Corporation, Hangzhou 310052, PR China; Zhejiang Key Laboratory for Traditional Chinese Medicine, Pharmaceutical Technology, Hangzhou 310052, PR China
| | - Hongxiang Qiao
- Zhejiang CONBA Pharmaceutical & Drug Research Development Corporation, Hangzhou 310052, PR China; Zhejiang Key Laboratory for Traditional Chinese Medicine, Pharmaceutical Technology, Hangzhou 310052, PR China
| | - Kenny Kuchta
- Department of Pharmaceutical Biology, Leipzig University, Johannisallee 23, 04103 Leipzig, Germany; Natural Products Chemistry Research, Department of Food and Nutrition, Sanyo Gakuen University-College, 703-8501 Okayama, Naka-ku, Hirai 1-14-1, Japan.
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Affiliation(s)
- Goutham Vemana
- Division of Urologic Surgery, Washington University School of Medicine in St. Louis, Siteman Cancer Center, St. Louis, Missouri;
| | - Robert J. Hamilton
- Division of Urology, Department of Surgery, University of Toronto, Toronto M5G 2M9, Ontario, Canada;
| | - Gerald L. Andriole
- Division of Urologic Surgery, Washington University School of Medicine in St. Louis, Siteman Cancer Center, St. Louis, Missouri;
| | - Stephen J. Freedland
- Surgery Section, Durham VA Medical Center, Durham, North Carolina 27710
- Duke Prostate Center, Division of Urology, Department of Surgery, Duke University School of Medicine, Durham, North Carolina 27710
- Department of Pathology, Duke University School of Medicine, Durham, North Carolina 27710;
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Abstract
BACKGROUND Benign prostatic hyperplasia (BPH) is a nonmalignant enlargement of the prostate, which can lead to obstructive and irritative lower urinary tract symptoms (LUTS). The pharmacologic use of plants and herbs (phytotherapy) for the treatment of LUTS associated with BPH is common. The extract of the berry of the American saw palmetto, or dwarf palm plant, Serenoa repens (SR), which is also known by its botanical name of Sabal serrulatum, is one of several phytotherapeutic agents available for the treatment of BPH. OBJECTIVES This systematic review aimed to assess the effects and harms of Serenoa repens in the treatment of men with LUTS consistent with BPH. SEARCH METHODS We searched for trials in general and in specialized databases, including the Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE®, EMBASE, CINAHL®, Web of Science, SCOPUS, BIOSIS Previews®, LILACS, ClinicalTrials.gov, Controlled-Trials.com, World Health Organization (WHO), and Google Scholar. We also handsearched systematic reviews, references, and clinical practice guidelines. There were no language restrictions. SELECTION CRITERIA Trials were eligible if they randomized men with symptomatic BPH to receive preparations of SR (alone or in combination) for at least four weeks in comparison with placebo or other interventions, and included clinical outcomes, such as urologic symptom scales, symptoms, and urodynamic measurements. Eligibility was assessed by at least two independent observers (JT, RM). DATA COLLECTION AND ANALYSIS One review author (JT) extracted Information on patients, interventions, and outcomes which was then checked by another review author (RM). The main outcome measure for comparing the effectiveness of SR with active or inert controls was change in urologic symptom-scale scores, with validated scores taking precedence over non validated ones. Secondary outcomes included changes in nocturia and urodynamic measures. The main outcome measure for harms was the number of men reporting side effects. MAIN RESULTS In a meta-analysis of two high quality long-term trials (n = 582), Serenoa repens therapy was not superior to placebo in reducing LUTS based on the AUA (mean difference (MD) 0.25 points, 95% confidence interval (CI) -0.58 to 1.07). A 72 week trial with high quality evidence, using the American Urological Association Symptom Score Index, reported that SR was not superior to placebo at double and triple doses. In the same trial the proportions of clinical responders (≥ three-point improvement) were nearly identical (42.6% and 44.2% for SR and placebo, respectively), and not significant (RR 0.96, 95% CI 0.76 to 1.22).This update, which did not change our previous conclusions, included two new trials with 444 additional men, an 8.5% (5666/5222) increase from our 2009 updated review, and a 28.8% (1988/1544) increase for our main comparison, SR monotherapy versus placebo control (17 trials). Overall, 5666 men were assessed from 32 randomized, controlled trials, with trial lengths from four to 72 weeks. Twenty-seven trials were double blinded and treatment allocation concealment was adequate in 14.In a trial of high quality evidence (N = 369), versus placebo, SR did not significantly decrease nightly urination on the AUA Nocturia scale (range zero to five) at 72 weeks follow-up (one-sided P = 0.19).The three high quality, moderate-to-long term trials found peak urine flow was not improved with Serenoa repens compared with placebo (MD 0.40 mL/s, 95% CI -0.30 to 1.09).Comparing prostate size (mean change from baseline), one high quality 12-month trial (N = 225) reported no significant difference between SR and placebo (MD -1.22 cc, 95% CI -3.91 to 1.47). AUTHORS' CONCLUSIONS Serenoa repens, at double and triple doses, did not improve urinary flow measures or prostate size in men with lower urinary tract symptoms consistent with BPH.
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Affiliation(s)
- James Tacklind
- Center for Chronic Disease Outcomes Research (111-0), Minneapolis Veterans Affairs Medical Center, Minneapolis, MN, USA.
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Mithraja MJ, Irudayaraj V, Kiruba S, Jeeva S. Antibacterial efficacy of Drynaria quercifolia (L.) J. Smith (Polypodiaceae) against clinically isolated urinary tract pathogens. Asian Pac J Trop Biomed 2012. [DOI: 10.1016/s2221-1691(12)60143-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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Hong H, Kim CS, Maeng S. Effects of pumpkin seed oil and saw palmetto oil in Korean men with symptomatic benign prostatic hyperplasia. Nutr Res Pract 2009; 3:323-7. [PMID: 20098586 PMCID: PMC2809240 DOI: 10.4162/nrp.2009.3.4.323] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2009] [Revised: 11/11/2009] [Accepted: 12/09/2009] [Indexed: 11/16/2022] Open
Abstract
This study was to investigate the role of complementary and alternative medicine in the prevention and treatment of benign prostatic hyperplasia. For this purpose, a randomized, double-blind, placebo-controlled trial was performed over 12 months on 47 benign prostatic hyperplasia patients with average age of 53.3 years and international prostate symptom score over 8. Subjects received either sweet potato starch (group A, placebo, 320 mg/day), pumpkin seed oil (group B, 320 mg/day), saw palmetto oil (group C, 320 mg/day) or pumpkin seed oil plus saw palmetto oil (group D, each 320 mg/day). International prostate symptom score, quality of life, serum prostate specific antigen, prostate volume and maximal urinary flow rate were measured. In groups B, C and D, the international prostate symptom score were reduced by 3 months. Quality of life score was improved after 6 months in group D, while those of groups B and C were improved after 3 months, compared to the baseline value. Serum prostate specific antigen was reduced only in group D after 3 months, but no difference was observed in prostate volume in all treatment groups. Maximal urinary flow rate were gradually improved in groups B and C, with statistical significance after 6 months in group B and after 12 months in group C. None of the parameters were significantly improved by combined treatment with pumpkin seed oil and saw palmetto oil. From these results, it is suggested that administrations of pumpkin seed oil and saw palmetto oil are clinically safe and may be effective as complementary and alternative medicine treatments for benign prostatic hyperplasia.
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Affiliation(s)
- Heeok Hong
- Department of Food Service Management and Nutrition, Sangmyung University, Hongji-dong, Jongro-gu, Seoul 110-743, Korea
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Abstract
BACKGROUND Benign prostatic hyperplasia (BPH), a nonmalignant enlargement of the prostate, can lead to obstructive and irritative lower urinary tract symptoms (LUTS). The pharmacologic use of plants and herbs (phytotherapy) for the treatment of LUTS associated with BPH is common. The extract of the berry of the American saw palmetto, or dwarf palm plant, Serenoa repens (also known by its botanical name of Sabal serrulatum), is one of several phytotherapeutic agents available for the treatment of BPH. OBJECTIVES This systematic review aimed to assess the effects of Serenoa repens in the treatment of LUTS consistent with BPH. SEARCH STRATEGY Trials were searched in computerized general and specialized databases (MEDLINE, EMBASE, and The Cochrane Library), by checking bibliographies, and by handsearching the relevant literature. SELECTION CRITERIA Trials were eligible if they (1) randomized men with symptomatic BPH to receive preparations of Serenoa repens (alone or in combination) for at least four weeks in comparison with placebo or other interventions, and (2) included clinical outcomes such as urologic symptom scales, symptoms, and urodynamic measurements. Eligibility was assessed by at least two independent observers. DATA COLLECTION AND ANALYSIS Information on patients, interventions, and outcomes was extracted by at least two independent reviewers using a standard form. The main outcome measure for comparing the effectiveness of Serenoa repens with placebo or other interventions was the change in urologic symptom-scale scores. Secondary outcomes included changes in nocturia and urodynamic measures. The main outcome measure for side effects or adverse events was the number of men reporting side effects. MAIN RESULTS In this update 9 new trials involving 2053 additional men (a 64.8% increase) have been included. For the main comparison - Serenoa repens versus placebo - 3 trials were added with 419 subjects and 3 endpoints (IPSS, peak urine flow, prostate size). Overall, 5222 subjects from 30 randomized trials lasting from 4 to 60 weeks were assessed. Twenty-six trials were double blinded and treatment allocation concealment was adequate in eighteen studies.Serenoa repens was not superior to placebo in improving IPSS urinary symptom scores, (WMD (weighted mean difference) -0.77 points, 95% CI -2.88 to 1.34, P > 0.05; 2 trials), finasteride (MD (mean difference) 0.40 points, 95% CI -0.57 to 1.37, P > 0.05; 1 trial), or tamsulosin (WMD -0.52 points, 95% CI -1.91 to 0.88, P > 0.05; 2 trials).For nocturia, Serenoa repens was significantly better than placebo (WMD -0.78 nocturnal visits, 95% CI -1.34 to -0.22, P < 0.05; 9 trials), but with the caveat of significant heterogeneity (I(2) = 66%). A sensitivity analysis, utilizing higher quality, larger trials (>/= 40 subjects), demonstrated no significant difference (WMD -0.31 nocturnal visits, 95% CI -0.70 to 0.08, P > 0.05; 5 trials) (I(2) = 11%). Serenoa repens was not superior to finasteride (MD -0.05 nocturnal visits, 95% CI -0.49 to 0.39, P > 0.05; 1 trial), or to tamsulosin (per cent improvement) (RR) (risk ratio) 0.91, 95% CI 0.66 to 1.27, P > 0.05; 1 trial).Comparing peak urine flow, Serenoa repens was not superior to placebo at trial endpoint (WMD 1.02 mL/s, 95% CI -0.14 to 2.19, P > 0.05; 10 trials), or by comparing mean change (WMD 0.31 mL/s, 95% CI -0.56 to 1.17, P > 0.05; 2 trials).Comparing prostate size at endpoint, there was no significant difference between Serenoa repens and placebo (MD -1.05 cc, 95% CI -8.84 to 6.75, P > 0.05; 2 trials), or by comparing mean change (MD -1.22 cc, 95% CI -3.91 to 1.47, P > 0.05; 1 trial). AUTHORS' CONCLUSIONS Serenoa repens was not more effective than placebo for treatment of urinary symptoms consistent with BPH.
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Affiliation(s)
- James Tacklind
- Center for Chronic Disease Outcomes Research (111-0), Minneapolis Veterans Affairs Medical Center, One Veterans Drive, Minneapolis, MN 55417, USA.
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Kim HJ, Andersson LC, Bouton D, Warner M, Gustafsson JA. Stromal growth and epithelial cell proliferation in ventral prostates of liver X receptor knockout mice. Proc Natl Acad Sci U S A 2009; 106:558-63. [PMID: 19122149 DOI: 10.1073/pnas.0811295106] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
With specific liver X receptor alpha and beta (LXRalpha and LXRbeta) antibodies, we found that LXRalpha is strongly expressed in the luminal and basal cells of prostatic epithelium. The ventral prostates (VP) of LXRalpha(-/-) mice are characterized by the presence of smooth-muscle actin-positive stromal overgrowth around the prostatic ducts and by numerous fibrous nodules pushing into the ducts and causing obstruction, so that most of the ducts were extremely dilated. BrdU labeling and Ki67 staining revealed epithelial and stromal proliferation in the fibrous nodules. However, the dense stroma surrounding the ducts was not positive for proliferation markers. There was no detectable difference between WT and LXRalpha(-/-) mice VP in the expression of the androgen receptor, but there was an increase in nuclear expression of Snail and Smad 2/3, indicating enhanced TGF-beta signaling. Upon treatment of WT mice for 3 months with the LXR agonist T2320 or for 3 weeks with beta-sitosterol, LXRalpha was downregulated, and a VP phenotype similar to that of LXRalpha(-/-) mice resulted. We conclude that in rodents, LXRalpha seems to control VP stromal growth and that LXRalpha(-/-) mice may be a useful model to study prostatic stromal hyperplasia. Because LXRalpha is expressed in the epithelium, the excessive stromal growth in LXRalpha(-/-) mice indicates that LXRalpha is essential for epithelial stromal communication.
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Zhang W, Wang X, Liu Y, Tian H, Flickinger B, Empie MW, Sun SZ. Effects of dietary flaxseed lignan extract on symptoms of benign prostatic hyperplasia. J Med Food 2008; 11:207-14. [PMID: 18358071 DOI: 10.1089/jmf.2007.602] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
A flaxseed lignan extract containing 33% secoisolariciresinol diglucoside (SDG) was evaluated for its ability to alleviate lower urinary tract symptoms (LUTS) in 87 subjects with benign prostatic hyperplasia (BPH). A randomized, double-blind, placebo-controlled clinical trial with repeated measurements was conducted over a 4-month period using treatment dosages of 0 (placebo), 300, or 600 mg/day SDG. After 4 months of treatment, 78 of the 87 subjects completed the study. For the 0, 300, and 600 mg/day SDG groups, respectively, the International Prostate Symptom Score (IPSS) decreased -3.67 +/- 1.56, -7.33 +/- 1.18, and -6.88 +/- 1.43 (mean +/- SE, P = .100, < .001, and < .001 compared to baseline), the Quality of Life score (QOL score) improved by -0.71 +/- 0.23, -1.48 +/- 0.24, and -1.75 +/- 0.25 (mean +/- SE, P = .163 and .012 compared to placebo and P = .103, < .001, and < .001 compared to baseline), and the number of subjects whose LUTS grade changed from "moderate/severe" to "mild" increased by three, six, and 10 (P = .188, .032, and .012 compared to baseline). Maximum urinary flows insignificantly increased 0.43 +/- 1.57, 1.86 +/- 1.08, and 2.7 +/- 1.93 mL/second (mean +/- SE, no statistical significance reached), and postvoiding urine volume decreased insignificantly by -29.4 +/- 20.46, -19.2 +/- 16.91, and -55.62 +/- 36.45 mL (mean +/- SE, no statistical significance reached). Plasma concentrations of secoisolariciresinol (SECO), enterodiol (ED), and enterolactone (EL) were significantly raised after the supplementation. The observed decreases in IPSS and QOL score were correlated with the concentrations of plasma total lignans, SECO, ED, and EL. In conclusion, dietary flaxseed lignan extract appreciably improves LUTS in BPH subjects, and the therapeutic efficacy appeared comparable to that of commonly used intervention agents of alpha1A-adrenoceptor blockers and 5alpha-reductase inhibitors.
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Affiliation(s)
- Wei Zhang
- Tumor Hospital and Institute, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
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Abstract
In this study, the effects of bee pollen on the development of digestive organs were evaluated in broiler chickens. A total of 144 1-day-old AA broiler chickens were randomly and equally divided into two groups, assigned as the control group and the pollen group, respectively. The control group was fed with a basic diet, while the pollen group was fed with a basic diet supplemented with 1.5% bee pollen over a period of 6 weeks. At the end of each week, the digestive organs were obtained for comparison from 12 broilers randomly selected from each group. The results demonstrated that compared to the control group, the small intestine villi from the duodenum, jejunum, and ileum were longer and thicker in the pollen group. This difference was more significant during early development, especially through the first 2 weeks. Bee pollen increased the length of the villi by 37.1% and 29.4% in the duodenum, 28.1% and 33.7% in the jejunum, and 18.6% and 16.2% in the ileum in week 1 and 2, respectively. Furthermore, the small intestinal glands were developed at a higher density in the pollen group, and the depth of the glands was significantly increased by bee pollen in the first 2 weeks. These findings suggest that bee pollen could promote the early development of the digestive system and therefore is a potentially beneficial food supplement for certain conditions, such as short bowel syndrome.
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Affiliation(s)
- Jue Wang
- Anhui Science and Technology University, Fengyang, Anhui, People's Republic of China
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Abstract
The use of herbal supplements in the United States is steadily growing and raises concerns about safety, efficacy, and how they affect safe patient care. The direct health risks associated with herbal supplements include hypertension, prolonged bleeding, and the potential for drug-herb interactions. These potential drug interactions are of particular concern for patients undergoing anesthesia. This article provides a review of literature on the 10 most popular herbal supplements and addresses the herbal supplements' reported use, possible adverse effect(s), patient teaching, possible drug interaction(s), and recommendations regarding discontinuation before surgery.
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Affiliation(s)
- Barbara Ann M Messina
- School of Nursing, State University of New York at Stony Brook, Stony Brook, NY 11794-8240, USA.
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Abstract
BACKGROUND To investigate whether saw palmetto that inhibits alpha1-adrenoceptor binding in vitro affects contractility of the rat prostate gland. METHODS The effects of a commercially available saw palmetto extract were examined on the contractility of rat-isolated prostate glands. The extract was tested in the presence and absence of phentolamine, prazosin, yohimbine, propranolol, hexamethonium, cocaine, desipramine, nifedipine, guanethidine, atropine, and alpha,beta-methylene ATP to evaluate the mechanism of action. Isolated preparations of rat vas deferens and bladder were used for comparison. RESULTS Unexpectedly, saw palmetto extract caused contractions of the rat prostate gland that could be attenuated by prazosin, phentolamine, nifedipine, guanethidine, cocaine, and desipramine but not by any of the other pharmacological tools. Similar contractile effects were observed in rat-isolated vas deferens preparations but not in rat-isolated bladder preparations. CONCLUSIONS In the rat prostate gland, saw palmetto extract causes indirect alpha1-adrenoceptor-mediated contractions via the release of noradrenaline from sympathetic neurons.
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Affiliation(s)
- Nga Cao
- Prostate Research Co-Operative, Faculty of Pharmacy, Monash University, Parkville, Victoria, Australia
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Fowke JH, Signorello LB, Chang SS, Matthews CE, Buchowski MS, Cookson MS, Ukoli FM, Blot WJ. Effects of obesity and height on prostate-specific antigen (PSA) and percentage of free PSA levels among African-American and Caucasian men. Cancer 2006; 107:2361-7. [PMID: 17031814 DOI: 10.1002/cncr.22249] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
BACKGROUND Prior studies suggest that obese men have lower prostate-specific antigen (PSA) levels than leaner men. Caucasian (CA) men also may have lower PSA levels than African-American (AA) men, but the relevance of body size to racial disparities in PSA levels is unclear. The association between body mass index (BMI) and height on PSA and percentage of free PSA (%fPSA) was investigated within AA and CA men without a prior prostate cancer diagnosis. METHODS AA (n = 150) and CA (n = 149) men of similar socioeconomic status completed an extensive in-person interview and donated blood. PSA and %fPSA levels were compared across race, BMI, and height categories after adjusting for age and other factors. RESULTS PSA levels decreased with increasing BMI (PSA = .72, .69, .67, .59 ng/mL for BMI 18.5 to <25, 25 to <30, 30 to <35, and > or =35, respectively; P(trend) = .18), and trends were significant among men less than age 60 years (PSA = .81, .76, .66, .59, respectively; P(trend) = .02). fPSA also significantly decreased with BMI among men <60 years (P(trend) = .04). In contrast, %fPSA was not associated with BMI. However, %fPSA increased 27% across height categories (P(trend) = .02). PSA levels were significantly lower among CA men (PSA(AA) = 0.87, PSA(CA) = 0.63 ng/mL; P < .01), whereas %fPSA levels did not differ by race. Also, associations between body size and PSA or %fPSA did not significantly differ by race, and adjustment for BMI and height had no effect on the racial disparity in PSA (PSA(AA) = 0.87, PSA(CA) = 0.63 ng/mL; P < .01). CONCLUSIONS The data suggest that race, BMI, and height are independently associated with PSA and %fPSA levels.
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Affiliation(s)
- Jay H Fowke
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee 37232, USA.
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Barella L, Muller PY, Schlachter M, Hunziker W, Stöcklin E, Spitzer V, Meier N, de Pascual-Teresa S, Minihane AM, Rimbach G. Identification of hepatic molecular mechanisms of action of alpha-tocopherol using global gene expression profile analysis in rats. Biochim Biophys Acta Mol Basis Dis 2004; 1689:66-74. [PMID: 15158915 DOI: 10.1016/j.bbadis.2004.02.002] [Citation(s) in RCA: 93] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2003] [Revised: 01/20/2004] [Accepted: 02/04/2004] [Indexed: 12/31/2022]
Abstract
The recent discovery that vitamin E (VE) regulates gene activity at the transcriptional level indicates that VE may exert part of its biological effects by mechanisms which may be independent of its well-recognised antioxidant function. The objective of this study was the identification of hepatic vitamin E-sensitive genes and examination of the effects of VE on their corresponding biological endpoints. Two groups of male rats were randomly assigned to either a VE-sufficient diet or to a control diet deficient in VE for 290 days. High-density oligonucleotide microarrays comprising over 7000 genes were used to assess the transcriptional response of the liver. Differential gene expression was monitored over a period of 9 months, at four different time-points, and rats were individually profiled. This experimental strategy identified several VE-sensitive genes, which were chronically altered by dietary VE. VE supplementation down-regulated scavenger receptor CD36, coagulation factor IX and 5-alpha-steroid reductase type 1 mRNA levels while hepatic gamma glutamyl-cysteinyl synthetase was significantly up-regulated. Measurement of the corresponding biological endpoints such as activated partial thromboplastin time, plasma dihydrotestosterone and hepatic glutathione substantiated the gene chip data which indicated that dietary VE plays an important role in a range of metabolic processes within the liver.
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Affiliation(s)
- Luca Barella
- DSM Nutritional Products (registered as Roche Vitamins Ltd), Human Nutrition and Health, P O Box 3255, CH-4002 Basel, Switzerland
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Talpur N, Echard B, Bagchi D, Bagchi M, Preuss HG. Comparison of Saw Palmetto (extract and whole berry) and Cernitin on prostate growth in rats. Mol Cell Biochem 2003; 250:21-6. [PMID: 12962139 DOI: 10.1023/a:1024988929454] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Pharmaceuticals such as finasteride and alpha blockers are used to treat symptoms of benign prostatic hyperplasia (BPH) and are known to cause severe adverse reactions. Accordingly, a search for safer, natural products has been undertaken. Two natural agents (nutraceuticals) have come under recent scrutiny; because natural products, in general, often have evidence of long-term safety. The present study compares the in vivo effects on androgen-induced prostatic enlargement in rats of two nutraceuticals--the widely recognized Saw Palmetto (Serenoa repens) and the less well-known Cernitin (defined pollen extract). Non-castrated rats, had a mean prostate weight of 124 mg +/- 8.8 (S.E.M.) compared to the 24.5 mg +/- 1.9 (S.E.M.) of the castrated rat followed under the same regimen (p < 0.01). When castrated rats were given testosterone, the mass increased significantly to 250.0 mg +/- 31.7 (S.E.M.) (p < 0.01). In the five remaining groups, castrated rats receiving testosterone were given finasteride, an extract of Saw Palmetto, crushed whole berry derived from Saw Palmetto fruit, a water soluble and fat soluble extract of Cernitin or a combination of the Saw Palmetto extract and Cernitin. All treatments decreased the size of the prostate to roughly the same size as in the non-castrated rats, a size that was significantly smaller than castrated rats treated with testosterone in the same manner (p < 0.01). A second study examining non-castrated rats treated with very high doses of testosterone showed similar results. In both studies, the nutraceuticals generally decreased body weight. In conclusion, these studies show the ability of Saw Palmetto (whole berry and extract) and Cernitin to influence prostatic hyperplasia via effects on androgen metabolism.
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Affiliation(s)
- Nadeem Talpur
- Department of Physiology, Georgetown University Medical Center, Washington, DC 20007, USA
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