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https://www.readbyqxmd.com/read/28325650/the-potential-role-of-follicle-stimulating-hormone-in-the-cardiovascular-metabolic-skeletal-and-cognitive-effects-associated-with-androgen-deprivation-therapy
#1
REVIEW
E David Crawford, Andrew V Schally, Jehonathan H Pinthus, Norman L Block, Ferenc G Rick, Marc B Garnick, Robert H Eckel, Thomas E Keane, Neal D Shore, David N Dahdal, Thomas J R Beveridge, Dennis C Marshall
PURPOSE: To explore how follicle-stimulating hormone (FSH) may contribute to cardiovascular, metabolic, skeletal, and cognitive events in men treated for prostate cancer, with various forms of androgen deprivation therapy (ADT). MATERIALS AND METHODS: A colloquium of prostate cancer experts was convened in May 2015, to discuss the role of FSH in the development of unwanted effects associated with ADT. Subsequently, a literature review (Medline, PubMed, and relevant congress abstract databases) was performed to further explore and evaluate the collected evidence...
March 18, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28324007/aberrant-tgf-%C3%AE-signaling-drives-castration-resistant-prostate-cancer-in-a-male-mouse-model-of-prostate-tumorigenesis
#2
Hong Pu, Diane Begemann, Natasha Kyprianou
The androgen receptor (AR) plays a critical role as a driver of castration-resistant-prostate cancer (CRPC). Our previous studies demonstrated that disruption of transforming growth factor-β (TGF-β) signaling via introduction of dominant-negative TGF-β type II receptor (DNTGF-RβII) in the prostate epithelium of transgenic adenocarcinoma of the prostate (TRAMP) mice accelerated tumor. This study investigated the consequences of disrupted TGF-β signaling on prostate tumor growth under conditions of castration-induced androgen deprivation (ADT) in the pre-clinical model DNTGFβRII...
March 16, 2017: Endocrinology
https://www.readbyqxmd.com/read/28323339/adjuvant-radiation-therapy-androgen-deprivation-and-docetaxel-for-high-risk-prostate-cancer-postprostatectomy-results-of-nrg-oncology-rtog-study-0621
#3
Mark D Hurwitz, Jonathan Harris, Oliver Sartor, Ying Xiao, Bobby Shayegan, Paul W Sperduto, Kasra R Badiozamani, Colleen A F Lawton, Eric M Horwitz, Jeff M Michalski, Kevin Roof, David C Beyer, Qiang Zhang, Howard M Sandler
BACKGROUND: Phase 3 trials have demonstrated a benefit from adjuvant radiation therapy (ART) for men who have adverse factors at radical prostatectomy (RP). However, some patients have a high risk of progression despite ART. The role of systemic therapy with ART in this high-risk group remains to be defined. METHODS: Patients who had either a post-RP prostate-specific antigen (PSA) nadir > 0.2 ng/mL and a Gleason score ≥7 or a PSA nadir ≤0.2 ng/mL, a Gleason score ≥8, and a pathologic tumor (pT) classification ≥ pT3 received 6 months of androgen-deprivation therapy (ADT) plus radiotherapy and 6 cycles of docetaxel...
March 21, 2017: Cancer
https://www.readbyqxmd.com/read/28323036/targeting-androgen-receptor-versus-targeting-androgens-to-suppress-castration-resistant-prostate-cancer
#4
Changcheng Guo, Shuyuan Yeh, Yuanjie Niu, Gonghui Li, Junhua Zheng, Lei Li, Chawnshang Chang
Prostate cancer (PCa) is the 2nd leading cause of cancer-related death among men in the United States and its progression is tightly associated with the androgen/androgen receptor (AR) signals. Men castrated before puberty (eunuchs) or men with inherited deficiency of type II 5α-reductase (with failure to convert testosterone to the more potent dihydrotestosterone) (DHT) do not develop PCa. To date, androgen deprivation therapy (ADT) with anti-androgen treatments to reduce or prevent androgens from binding to the AR remains the main therapeutic option for advanced PCa since its discovery by Huggins and Hodges in 1941...
March 18, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28319807/targeting-nf-kappa-b-signaling-by-artesunate-restores-sensitivity-of-castrate-resistant-prostate-cancer-cells-to-antiandrogens
#5
Jessica J Nunes, Swaroop K Pandey, Anjali Yadav, Sakshi Goel, Bushra Ateeq
Androgen deprivation therapy (ADT) is the most preferred treatment for men with metastatic prostate cancer (PCa). However, the disease eventually progresses and develops resistance to ADT in majority of the patients, leading to the emergence of metastatic castration-resistant prostate cancer (mCRPC). Here, we assessed artesunate (AS), an artemisinin derivative, for its anticancer properties and ability to alleviate resistance to androgen receptor (AR) antagonists. We have shown AS in combination with bicalutamide (Bic) attenuates the oncogenic properties of the castrate-resistant (PC3, 22RV1) and androgen-responsive (LNCaP) PCa cells...
March 16, 2017: Neoplasia: An International Journal for Oncology Research
https://www.readbyqxmd.com/read/28319589/exercise-improves-v-combining-dot-above-o-2max-and-body-composition-in-adt-treated-prostate-cancer-patients
#6
Bradley A Wall, Daniel A Galvão, Naeem Fatehee, Dennis R Taaffe, Nigel Spry, David Joseph, Jeffrey J Hebert, Robert U Newton
INTRODUCTION: Prostate cancer is the most common cancer in men and patients treated with androgen deprivation therapy (ADT) experience unfavourbale changes in body composition and associated metabolic complications, which can increase the risk of cardiovascular disease. We examined the effect of a 6-month program of aerobic and resistance exercise aimed at improving body composition and cardiorespiratory health in this population. METHODS: Ninety-seven men (43-90 years) with localized prostate cancer receiving ADT were randomized to either exercise (EX, n=50) or usual care (CON, n=47)...
March 18, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28298980/biological-and-antibacterial-properties-of-a-new-silver-fiber-post-in-vitro-evaluation
#7
Claudio Poggio, Federico Trovati, Matteo Ceci, Marco Chiesa, Marco Colombo, Giampiero Pietrocola
BACKGROUND: The incorporation of nano silver particles (AgNPs) to improve antibacterial properties of dental materials has become increasingly common. The aim of the present study was to compare the antibacterial activity and cytotoxicity effects of different fiber posts: glass fiber post, quartz fiber post, nano fiber post and silver fiber post. MATERIAL AND METHODS: The antibacterial activity against S. mutans, S. salivarius and S. sanguis was evaluated by using the agar disc diffusion test (ADT)...
March 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28295408/circulating-tumor-cells-as-a-marker-for-progression-free-survival-in-metastatic-castration-na%C3%A3-ve-prostate-cancer
#8
Andreas Josefsson, Anna Linder, Despina Flondell Site, Giacomo Canesin, Anna Stiehm, Aseem Anand, Anders Bjartell, Jan-Erik Damber, Karin Welén
BACKGROUND: Analysis of circulating tumor cells (CTC) is a promising prognostic marker in castration-resistant prostate cancer (CRPC). The aim of this study was to investigate CTC detection and phenotyping as prognostic biomarkers for response to primary androgen deprivation therapy (ADT) of metastatic prostate cancer (PC). METHODS: PC patients presenting with a prostate specific antigen (PSA) >80 ng/ml and/or metastatic disease, intended for ADT were enrolled in the study...
March 10, 2017: Prostate
https://www.readbyqxmd.com/read/28294068/cognitive-impacts-of-estrogen-treatment-in-androgen-deprived-males-what-needs-to-be-resolved
#9
Erik Wibowo
BACKGROUND: Many prostate cancer (PCa) patients are on androgen deprivation therapy (ADT) as part of their cancer treatments but ADT may cause cognitive impairments. ADT depletes men of both androgen and estrogen. Whether estradiol supplementation can improve cognitive impairments in patients on ADT is understudied. OBJECTIVE: To summarize data on the effects of estradiol treatment on cognitive function of androgen-deprived genetic male populations (PCa patients and male-to-female transsexuals) and castrated male animals...
March 13, 2017: Current Neuropharmacology
https://www.readbyqxmd.com/read/28279064/cancer-specific-mortality-among-korean-men-with-localized-or-locally-advanced-prostate-cancer-treated-with-radical-prostatectomy-versus-radiotherapy-a-multi-center-study-using-propensity-scoring-and-competing-risk-regression-analyses
#10
Kyo Chul Koo, Jin Seon Cho, Woo Jin Bang, Seung Hwan Lee, Sung Yong Cho, Sun Il Kim, Se Joong Kim, Koon Ho Rha, Sung Joon Hong, Byung Ha Chung
Purpose: Studies comparing radical prostatectomy (RP) outcomes with those of radiotherapy with or without androgen deprivation therapy (RT±ADT) for prostate cancer (PCa) have yielded conflicting results. Therefore, we used propensity score-matched analysis and competing risk regression analysis to compare cancer-specific mortality (CSM) and other-cause mortality (OCM) between these two treatments. Materials and Methods: The multi-center, Severance Urological Oncology Group registry was utilized to identify 3,028 patients with clinically localized or locally advanced PCa treated by RP (n=2,521) or RT±ADT (n=507) between 2000 and 2016...
March 8, 2017: Cancer Research and Treatment: Official Journal of Korean Cancer Association
https://www.readbyqxmd.com/read/28275218/epigenomic-regulation-of-androgen-receptor-signaling-potential-role-in-prostate-cancer-therapy
#11
REVIEW
Vito Cucchiara, Joy C Yang, Vincenzo Mirone, Allen C Gao, Michael G Rosenfeld, Christopher P Evans
Androgen receptor (AR) signaling remains the major oncogenic pathway in prostate cancer (PCa). Androgen-deprivation therapy (ADT) is the principle treatment for locally advanced and metastatic disease. However, a significant number of patients acquire treatment resistance leading to castration resistant prostate cancer (CRPC). Epigenetics, the study of heritable and reversible changes in gene expression without alterations in DNA sequences, is a crucial regulatory step in AR signaling. We and others, recently described the technological advance Chem-seq, a method to identify the interaction between a drug and the genome...
January 16, 2017: Cancers
https://www.readbyqxmd.com/read/28270949/robot-assisted-radical-prostatectomy-in-low-and-high-risk-prostate-cancer-patients
#12
Uğur Boylu, Ahmet Bindayi, Eyüp Veli Küçük, Fikret Fatih Önol, Eyüp Gümüş
OBJECTIVE: To evaluate the benefit of robot-assisted radical prostatectomy (RARP) in the low-risk prostate cancer (PCa) patients suitable for active surveillance and in the high-risk PCa patients who would be considered for alternative treatments such as radiotherapy (RT) and androgen deprivation therapy (ADT) instead of radical prostatectomy. MATERIAL AND METHODS: Of 548 patients, who underwent RARP, 298 PCa patients (258 low-risk and 40 high-risk) with a mean of 3...
March 2017: Turkish Journal of Urology
https://www.readbyqxmd.com/read/28268594/computational-analysis-of-androgen-receptor-dependent-radiosensitivity-in-prostate-cancer
#13
Mengdi Qian, Alexandru Almasan, Evren Gurkan-Cavusoglu
In this study, we quantitatively analyze the mechanism by which androgen deprivation therapy (ADT) is enhancing radiosensitivity in prostate cancer (PCa) patients. It has been shown in laboratory experiments, as well as in patient data in the literature, that the androgen receptor (AR) reduces the effectiveness of ionizing radiation treatment by enhancing the non-homologous end joining (NHEJ) repair of radiation damage. The suppression of AR by ADT suppresses the activity of NHEJ that leads to radiosensitivity in PCa patients...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28263373/falls-and-frailty-in-prostate-cancer-survivors-current-past-and-never-users-of-androgen-deprivation-therapy
#14
Kerri M Winters-Stone, Esther Moe, Julie N Graff, Nathan F Dieckmann, Sydnee Stoyles, Carolyn Borsch, Joshi J Alumkal, Christopher L Amling, Tomasz M Beer
OBJECTIVES: To compare the prevalence of and association between falls and frailty of prostate cancer survivors (PCSs) who were current, past or never users of androgen deprivation therapy (ADT). DESIGN: Cross-sectional. SETTING: Mail and electronic survey. PARTICIPANTS: PCSs (N = 280; mean age 72 ± 8). MEASUREMENTS: Cancer history, falls, and frailty status (robust, prefrail, frail) using traditionally defined and obese phenotypes...
March 6, 2017: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/28263133/commentary-in-search-of-answers-regarding-the-benefits-and-harms-of-short-term-adt-for-intermediate-risk-prostate-cancer
#15
EDITORIAL
Timothy N Showalter
No abstract text is available yet for this article.
February 2017: Canadian Journal of Urology
https://www.readbyqxmd.com/read/28263132/the-need-for-androgen-deprivation-therapy-in-patients-with-intermediate-risk-prostate-cancer-treated-with-dose-escalated-external-beam-radiation-therapy
#16
Yanqun Dong, Karen J Ruth, Thomas M Churilla, Rosalia Viterbo, Mark L Sobczak, Marc C Smaldone, David Y T Chen, Robert G Uzzo, Mark H Hallman, Eric M Horwitz
INTRODUCTION: To evaluate if androgen deprivation therapy (ADT) improves outcomes for patients with localized, intermediate-risk prostate cancer treated with definitive external beam radiation therapy (EBRT) in the dose-escalated era. MATERIALS AND METHODS: This is a retrospective study using a single institutional database. We included patients with localized, intermediate-risk prostate cancer treated with dose-escalated radiation therapy (RT) with 3D conformal radiotherapy or intensity-modulated radiotherapy (74-80 Gy in daily fraction of 1...
February 2017: Canadian Journal of Urology
https://www.readbyqxmd.com/read/28262724/comparison-of-bone-mineral-loss-by-combined-androgen-block-agonist-versus-gnrh-in-patients-with-prostate-cancer-a-12-month-prospective-observational-study
#17
Sung Han Kim, Jae Young Joung, Sohee Kim, Koon Ho Rha, Hyeong Gon Kim, Cheol Kwak, Ji Youl Lee, Seong Soo Jeon, Sung Kyu Hong, Hyeon Jeong, Moon Ki Jo, Dalsan You, In Gab Jeong, Jun Hyuk Hong, Choung-Soo Kim
The multi-centre, prospective, observational study was designed to examine the efficacy of continuous combined androgen block (CAB) vs. GnRH agonist monotherapy in terms of bone mineral density (BMD) change during 12 months post-androgen deprivation therapy (ADT) in Asian prostate cancer patients. Multiple regression analysis and estimated the 10-year probability of major fractures among the patients with Fracture Risk Assessment Tool were conducted to investigate the underlying factors affecting BMD. Paired t-test to evaluate the change of BMD from baseline to 12 month, and two sample t-test to examine the difference of BMD changes were used between two groups...
March 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28259476/treatment-outcomes-and-tumor-loss-of-heterozygosity-in-germline-dna-repair-deficient-prostate-cancer
#18
Matti Annala, Werner J Struss, Evan W Warner, Kevin Beja, Gillian Vandekerkhove, Amanda Wong, Daniel Khalaf, Irma-Liisa Seppälä, Alan So, Gregory Lo, Rahul Aggarwal, Eric J Small, Matti Nykter, Martin E Gleave, Kim N Chi, Alexander W Wyatt
BACKGROUND: Germline mutations in DNA repair genes were recently reported in 8-12% of patients with metastatic castration-resistant prostate cancer (mCRPC). It is unknown whether these mutations associate with differential response to androgen receptor (AR)-directed therapy. OBJECTIVE: To determine the clinical response of mCRPC patients with germline DNA repair defects to AR-directed therapies and to establish whether biallelic DNA repair gene loss is detectable in matched circulating tumor DNA (ctDNA)...
March 1, 2017: European Urology
https://www.readbyqxmd.com/read/28253340/patients-receiving-androgen-deprivation-therapy-for-prostate-cancer-have-an-increased-risk-of-depressive-disorder
#19
Shiu-Dong Chung, Li-Ting Kao, Herng-Ching Lin, Sudha Xirasagar, Chung-Chien Huang, Hsin-Chien Lee
Androgen deprivation therapy (ADT) results in testosterone suppression, a hypothesized mechanism linking ADT to depressive symptoms. This study investigated the relationship between ADT and the risk of subsequently being diagnosed with depressive disorder (DD) during a 3-year follow-up period. The patient sample for this population-based, retrospective cohort study was retrieved from the Taiwan Longitudinal Health Insurance Database 2005. We included all 1714 patients aged over 40 years with a first-time diagnosis of prostate cancer (PC) during 2001 to 2010 who did not have an orchiectomy...
2017: PloS One
https://www.readbyqxmd.com/read/28249801/effects-of-different-exercise-modalities-on-fatigue-in-prostate-cancer-patients-undergoing-androgen-deprivation-therapy-a-year-long-randomised-controlled-trial
#20
Dennis R Taaffe, Robert U Newton, Nigel Spry, David Joseph, Suzanne K Chambers, Robert A Gardiner, Brad A Wall, Prue Cormie, Kate A Bolam, Daniel A Galvão
BACKGROUND: Physical exercise mitigates fatigue during androgen deprivation therapy (ADT); however, the effects of different exercise prescriptions are unknown. OBJECTIVES: To determine the long-term effects of different exercise modes on fatigue in prostate cancer patients undergoing ADT. DESIGN, SETTING, AND PARTICIPANTS: Between 2009 and 2012, 163 prostate cancer patients aged 43-90 y on ADT were randomised to exercise targeting the musculoskeletal system (impact loading+resistance training; ILRT; n=58), the cardiovascular and muscular systems (aerobic+resistance training; ART; n=54), or to usual care/delayed exercise (DEL; n=51) for 12 mo across university-affiliated exercise clinics in Australia...
February 26, 2017: European Urology
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