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https://www.readbyqxmd.com/read/27871928/the-effect-of-dutasteride-on-mri-defined-prostate-cancer-lesions-mapped-magnetic-resonance-imaging-in-primary-prostate-cancer-after-exposure-to-dutasteride-a-randomized-placebo-controlled-double-blind-clinical-trial
#1
Caroline M Moore, Nicola L Robertson, Fatima Jichi, Adebiyi Damola, Gareth Ambler, Francesco Giganti, Ashley J Ridout, Simon Rj Bott, Mathias Winkler, Hashim U Ahmed, Manit Arya, Anita V Mitra, Neil McCartan, Alex Freeman, Charles Jameson, Ramiro Castro, Giulio Gambarota, Brandon J Whitcher, Clare Allen, Alex Kirkham, Mark Emberton
PURPOSE: Dutasteride is licensed for symptomatic benign prostatic hyperplasia, and has been associated with a lower progression rate in low-risk prostate cancer. We have evaluated the effect of dutasteride on prostate cancer volume as assessed by T2-weighted Magnetic Resonance Imaging (MRI). MATERIALS AND METHODS: In this randomized, double-blind, placebo-controlled trial, men with biopsy-proven low-intermediate risk prostate cancer (up to Gleason 3+4 and PSA up to 15 ng/ml) who had an MR visible lesion of >/= 0...
November 18, 2016: Journal of Urology
https://www.readbyqxmd.com/read/27866006/the-cardiovascular-safety-of-dutasteride
#2
Sean C Skeldon, Erin M Macdonald, Michael R Law, Anjie Huang, J Michael Paterson, Muhammad M Mamdani, David Juurlink
PURPOSE: Randomized controlled trials suggest an increased risk of heart failure with dutasteride, which inhibits both the type 1 and type 2 isoforms of 5-α reductase. In contrast, no such association has been suggested for finasteride, which selectively inhibits the type 2 isoform. We investigated the risk of cardiovascular events among patients receiving dutasteride relative to finasteride. MATERIALS AND METHODS: Population-based cohort study of Ontario men aged 66 years or older who commenced treatment with dutasteride or finasteride between October 1, 2005 and March 31, 2015...
November 16, 2016: Journal of Urology
https://www.readbyqxmd.com/read/27864106/transurethral-resection-of-prostate-and-bleeding-a-prospective-randomized-double-blind-placebo-controlled-trial-to-see-efficacy-of-short-term-use-of-finasteride-and-dutasteride-on-operative-blood-loss-and-prostatic-micro-vessel-density
#3
Aditi Arora, Ankur Bansal, Bimalesh Purkait, Ashok Kumar Sokhal, Ved Bhaskar, Priyank Yadav, Satyanarayan Sankhwar
OBJECTIVE: To evaluate the effects of short term use of finasteride and dutasteride on amount of intraoperative blood loss and microvessel density (MVD) of prostatic stromal and suburethral tissues in patients with benign prostatic hyperplasia (BPH) prior to TURP METHODS: The study involved 450 male patients who planned to have TURP and were prospectively randomised into three groups (150 patients each). The group 1 received no medication, group 2 received finasteride 5 mg/day and group 3 received dutasteride 0...
November 15, 2016: Urology
https://www.readbyqxmd.com/read/27813338/dutasteride-mediated-morphological-changes-in-the-genitourinary-tract-associated-with-altered-expression-patterns-of-the-androgen-and-estrogen-receptors-in-male-rats
#4
N Enatsu, K Chiba, K Sumii, T Fukuda, K Okada, K Matsushita, M Fujisawa
We evaluated the effects of dutasteride on the genitourinary tract using fifteen 8-week-old male Sprague-Dawley rats. Animals were divided into three groups comprising five animals each and treated as follows. Group A was a control group, members of Group B received oral administration of dutasteride 0.1 mg/kg/day from the age of 8 to 16 weeks, and members of Group C were castrated at the age of 8 weeks. All rats were killed at the age of 16 weeks for the sample collection of blood, bladder, prostate, seminal vesicles, and penis...
November 3, 2016: Andrology
https://www.readbyqxmd.com/read/27789379/a-new-label-free-screen-for-steroid-5%C3%AE-reductase-inhibitors-using-lc-ms
#5
Jukkarin Srivilai, Karma Rabgay, Nantaka Khorana, Neti Waranuch, Nitra Nuengchamnong, Kornkanok Ingkaninan
Steroid 5α-reductase (S5αR) plays an important role in metabolizing testosterone into active androgen dihydrotestosterone (DHT) which is involved in many androgen dependent disorders, such as androgenic alopecia, benign prostatic hyperplasia and acne. The method for screening for S5αR inhibition is key in finding new antagonists. In this study, the label-free S5αR inhibitory assay using LC-MS was developed. S5αR type 1 enzyme was obtained from LNCaP prostate cancer cells. The enzymatic assay was optimised for enzyme-substrate (testosterone) concentration, NADPH-cofactor concentration, solvent tolerance, enzyme activity stability and incubation time...
October 24, 2016: Steroids
https://www.readbyqxmd.com/read/27727093/-lower-urinary-tract-symptoms-and-pelvic-floor-dysfunction-in-renal-transplant-candidates-and-recipients
#6
R Thuret, S Hurel, F Kleinclauss, M O Timsit
OBJECTIVES: To describe lower urinary tract symptoms (LUTS) and their management in renal transplant candidates and recipients. MATERIAL AND METHODS: Relevant publications were identified through Medline (http://www.ncbi.nlm.nih.gov) and Embase (http://www.embase.com) database using the following keywords, alone or in association: "transplantation", "prostate hyperplasia", "transurethral resection of prostate", "urinary incontinence", "LUTS", "pelvic floor dysfunction"...
October 7, 2016: Progrès en Urologie
https://www.readbyqxmd.com/read/27683182/a-phase-ii-trial-of-abiraterone-combined-with-dutasteride-for-men-with-metastatic-castration-resistant-prostate-cancer
#7
Mary-Ellen Taplin, Rana R McKay, Lillian Werner, Elahe A Mostaghel, Rosina T Lis, Olga Voznesensky, Zhenwei Zhang, Brett Marck, Alvin M Matsumoto, Liran Domachevsky, Katherine A Zukotynski, Manoj K Bhasin, Glenn J Bubley, Bruce Montgomery, Philip W Kantoff, Steven P Balk
PURPOSE: Despite the efficacy of abiraterone, a CYP17A1 inhibitor, in metastatic castration-resistant prostate cancer (CRPC), nearly all patients develop resistance. The purpose of this phase II study was to evaluate mechanisms of resistance to more complete androgen synthesis inhibition with abiraterone and dutasteride. EXPERIMENTAL DESIGN: Eligible metastatic CRPC patients underwent a baseline metastasis biopsy. Patients received abiraterone and prednisone for two 4-week cycles...
September 28, 2016: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/27672412/adverse-effects-and-safety-of-5-alpha-reductase-inhibitors-finasteride-dutasteride-a-systematic-review
#8
REVIEW
Jason M Hirshburg, Petra A Kelsey, Chelsea A Therrien, A Carlo Gavino, Jason S Reichenberg
Finasteride and dutasteride, both 5-alpha reductase inhibitors, are considered first-line treatment for androgenetic hair loss in men and used increasingly in women. In each case, patients are expected to take the medications indefinitely despite the lack of research regarding long-term adverse effects. Concerns regarding the adverse effects of these medications has led the United States National Institutes of Health to add a link for post-finasteride syndrome to its Genetic and Rare Disease Information Center...
July 2016: Journal of Clinical and Aesthetic Dermatology
https://www.readbyqxmd.com/read/27668569/comparing-clinical-and-economic-outcomes-associated-with-early-initiation-of-combination-therapy-of-an-alpha-blocker-and-dutasteride-or-finasteride-in-men-with-benign-prostatic-hyperplasia-in-the-united-states
#9
Maral DerSarkissian, Yongling Xiao, Mei Sheng Duh, Patrick Lefebvre, Andrine R Swensen, Christopher F Bell
BACKGROUND: Benign prostatic hyperplasia (BPH) is a common disease in men that is characterized by lower urinary tract symptoms. Pharmacologic treatment with alpha blockers (ABs) and 5-alpha reductase inhibitors (5ARIs) is recommended to alleviate symptoms, prevent disease progression that can lead to complications, and reduce health care costs. OBJECTIVE: To compare clinical, economic, and health care resource utilization outcomes among BPH patients treated with early continuous combination AB and 5ARI therapy (dutasteride vs...
October 2016: Journal of Managed Care & Specialty Pharmacy
https://www.readbyqxmd.com/read/27659058/risk-of-erectile-dysfunction-associated-with-use-of-5-%C3%AE-reductase-inhibitors-for-benign-prostatic-hyperplasia-or-alopecia-population-based-studies-using-the-clinical-practice-research-datalink
#10
Katrina Wilcox Hagberg, Hozefa A Divan, Rebecca Persson, J Curtis Nickel, Susan S Jick
OBJECTIVE:  To estimate the risk of erectile dysfunction in men who used 5-α reductase inhibitors to treat benign prostatic hyperplasia or alopecia. DESIGN:  Cohort studies with nested case-control analyses. SETTING:  UK Clinical Practice Research Datalink. POPULATION:  Two populations of men free of risk factors for erectile dysfunction and other sexual dysfunction or its treatment: men aged 40 or more with benign prostatic hyperplasia who received a prescription for a 5-α reductase inhibitor (finasteride or dutasteride) or α blocker, or both, and men aged 18-59 with alopecia...
September 22, 2016: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/27644229/dutasteride-for-the-prevention-of-prostate-cancer-in-men-with-high-grade-prostatic-intraepithelial-neoplasia-results-of-a-phase-iii-randomized-open-label-3-year-trial
#11
Daimantas Milonas, Stasys Auskalnis, Giedrius Skulcius, Inga Gudinaviciene, Mindaugas Jievaltas, Steven Joniau
PURPOSE: High-grade prostatic intraepithelial neoplasia (HGPIN) is a potential precursor of prostate cancer (PCa), and patients with HGPIN are at high risk for PCa development. Objective of our study was to evaluate the efficacy of dutasteride 0.5 mg in PCa prevention among men with isolated HGPIN on biopsy. METHODS: This prospective, randomized, phase III, open-label 3-year trial assessed dutasteride versus active surveillance in patients with HGPIN. Patients were randomized to dutasteride 0...
September 19, 2016: World Journal of Urology
https://www.readbyqxmd.com/read/27580700/rates-of-prostate-surgery-and-acute-urinary-retention-for-benign-prostatic-hyperplasia-in-men-treated-with-dutasteride-or-finasteride
#12
Josephina G Kuiper, Irene D Bezemer, Maurice T Driessen, Averyan Vasylyev, Claus G Roehrborn, Fernie J A Penning-van Beest, Ron M C Herings
BACKGROUND: Previous studies have suggested a greater benefit for various outcomes in men diagnosed with benign prostatic hyperplasia (BPH) who are treated with dutasteride than for men treated with finasteride. This study investigates whether the rates of BPH-related prostate surgery and acute urinary retention (AUR) differ between dutasteride and finasteride users in the Netherlands. METHODS: From the PHARMO Database Network, men aged ≥50 years with a dispensing of dutasteride or finasteride with or without concomitant alpha-blocker treatment between March 1, 2003 and December 31, 2011 were selected...
August 31, 2016: BMC Urology
https://www.readbyqxmd.com/read/27551761/interactions-between-medications-employed-in-treating-benign-prostatic-hyperplasia-and-food-a-short-review
#13
Paweł Paśko, Tomasz Rodacki, Renata Domagała-Rodacka, Danuta Owczarek
Benign prostatic hyperplasia (BPH) is the most common disease in elderly men. BPH symptoms include frequent urination, urgent tenesmus and urination at night, a weak and interrupted urine flow and a sense of incomplete emptying of the bladder. Alpha- 1 adrenergic receptor antagonists and 5 α-reductase inhibitors form the most important groups of medications employed in BPH. Appropriately managed BPH patients shall be subject to counselling on interactions between agents belonging to these groups, and on particular components of the food they have...
October 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27549867/superiority-of-dutasteride-over-finasteride-in-hair-regrowth-and-reversal-of-miniaturization-in-men-with-androgenetic-alopecia-a-randomized-controlled-open-label-evaluator-blinded-study
#14
Sujit J S Shanshanwal, Rachita S Dhurat
BACKGROUND: Finasteride and dutasteride are inhibitors of the enzyme 5-alpha-reductase which inhibits the conversion of testosterone to dihydrotestosterone. Dutasteride inhibits both type I and type II 5-alpha-reductase while finasteride inhibits only the type II enzyme. As both isoenzymes are present in hair follicles, it is likely that dutasteride is more effective than finasteride. AIMS: To compare the efficacy, safety and tolerability of dutasteride and finasteride in men with androgenetic alopecia...
August 22, 2016: Indian Journal of Dermatology, Venereology and Leprology
https://www.readbyqxmd.com/read/27529214/apoptotic-pathways-linked-to-endocrine-system-as-potential-therapeutic-targets-for-benign-prostatic-hyperplasia
#15
REVIEW
Letteria Minutoli, Mariagrazia Rinaldi, Herbert Marini, Natasha Irrera, Giovanni Crea, Cesare Lorenzini, Domenico Puzzolo, Andrea Valenti, Antonina Pisani, Elena B Adamo, Domenica Altavilla, Francesco Squadrito, Antonio Micali
Benign prostatic hyperplasia (BPH) is a chronic condition common in older men that can result in bothersome lower urinary tract symptoms. The molecular mechanisms and networks underlying the development and the progression of the disease are still far from being fully understood. BPH results from smooth muscle cell and epithelial cell proliferation, primarily within the transition zone of the prostate. Apoptosis and inflammation play important roles in the control of cell growth and in the maintenance of tissue homeostasis...
2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27506696/suppressed-recurrent-bladder-cancer-after-androgen-suppression-with-androgen-deprivation-therapy-or-5%C3%AE-reductase-inhibitor
#16
Masaki Shiota, Keijiro Kiyoshima, Akira Yokomizo, Ario Takeuchi, Eiji Kashiwagi, Takashi Dejima, Ryosuke Takahashi, Junichi Inokuchi, Katsunori Tatsugami, Masatoshi Eto
PURPOSE: To reveal whether intravesical recurrence is affected by an inhibition of androgen signaling among men with non-muscle invasive bladder cancer. MATERIALS AND METHODS: This study examined the intravesical recurrent rate among men treated with or without androgen-suppression therapy (AST) by androgen-deprivation therapy for prostate cancer or 5α-reductase inhibitor dutasteride for benign prostatic hyperplasia. RESULTS: This study included 228 men with AST (n = 32) or without AST (n = 196)...
August 6, 2016: Journal of Urology
https://www.readbyqxmd.com/read/27489426/safety-and-tolerability-of-the-dual-5-alpha-reductase-inhibitor-dutasteride-in-the-treatment-of-androgenetic-alopecia
#17
Gwang Seong Choi, Joon Hyung Kim, Shin-Young Oh, Jung-Min Park, Ji-Soo Hong, Yil-Seob Lee, Won-Soo Lee
BACKGROUND: After the approval of dutastride for androgenic alopecia (AGA) in 2009, Korean authority required a post-marketing surveillance to obtain further data on its safety profile. OBJECTIVE: The objective was to monitor adverse events (AEs) of dutasteride 0.5 mg in Korean AGA male patients in a clinical practice environment. METHODS: Open label, multi-center, non-interventional observational study was done from July 2009 to July 2013...
August 2016: Annals of Dermatology
https://www.readbyqxmd.com/read/27475241/effect-of-5%C3%AE-reductase-inhibitors-on-sexual-function-a-meta-analysis-and-systematic-review-of-randomized-controlled-trials
#18
REVIEW
Luhao Liu, Shankun Zhao, Futian Li, Ermao Li, Ran Kang, Lianmin Luo, Jintai Luo, Shawpong Wan, Zhigang Zhao
INTRODUCTION: 5α-Reductase inhibitors (5ARIs) are widely used for the treatment of benign prostatic hyperplasia (BPH) and androgenetic alopecia (AGA). AIM: To review all the available data on the effect of 5ARIs on sexual function and assess whether 5ARIs increase the risk of sexual dysfunction. METHODS: A systematic search of the literature was conducted using the Medline, Embase, and Cochrane databases. The search was limited to articles published in English and up to October 2015...
September 2016: Journal of Sexual Medicine
https://www.readbyqxmd.com/read/27470570/in-silico-screening-for-dna-dependent-protein-kinase-dna-pk-inhibitors-combined-homology-modeling-docking-molecular-dynamic-study-followed-by-biological-investigation
#19
Hamadeh Tarazi, Ekram Saleh, Raafat El-Awady
DNA-dependent protein kinase (DNA-PK) is a key enzyme in non-homologous DNA end joining (NHEJ) repair pathway. The targeted inhibition of such enzyme would furnish a valuable option for cancer treatment. In this study we report the development of validation of enzyme homology model, and the subsequent use of this model to perform docking-based virtual screening against a database of FDA-approved drugs. The nominated highest ranking hits (Praziquantel and Dutasteride) were subjected to biological investigation...
July 28, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27466384/equine-5%C3%AE-reductase-activity-and-expression-in-epididymis
#20
C J Corbin, E L Legacki, B A Ball, K E Scoggin, S D Stanley, A J Conley
The 5α-reductase enzymes play an important role during male sexual differentiation, and in pregnant females, especially equine species where maintenance relies on 5α-reduced progesterone, 5α-dihydroprogesterone (DHP). Epididymis expresses 5α-reductases but was not studied elaborately in horses. Epididymis from younger and older postpubertal stallions was divided into caput, corpus and cauda and examined for 5α-reductase activity and expression of type 1 and 2 isoforms by quantitative real-time polymerase chain reaction (qPCR)...
October 2016: Journal of Endocrinology
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