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https://www.readbyqxmd.com/read/28444639/metformin-and-prostate-cancer-a-new-role-for-an-old-drug
#1
REVIEW
Jessica Whitburn, Claire M Edwards, Prasanna Sooriakumaran
PURPOSE OF REVIEW: Since epidemiological studies first demonstrated a potential positive effect of metformin in reducing cancer incidence and mortality, there has been an increased interest in not only better understanding metformin's mechanisms of action but also in exploring its potential anti-cancer effects. In this review, we aim to summarise the current evidence exploring a role for metformin in prostate cancer therapy. RECENT FINDINGS: Preclinical studies have demonstrated a number of antineoplastic biological effects via a range of molecular mechanisms...
June 2017: Current Urology Reports
https://www.readbyqxmd.com/read/28444169/androgen-receptor-regulation-of-local-growth-hormone-in-prostate-cancer-cells
#2
M V Recouvreux, B Wu, A C Gao, S Zonis, V Chesnokova, N Bhowmick, L W Chung, S Melmed
Prostate cancer (PCa) growth is mainly driven by androgen receptor (AR), and tumors that initially respond to androgen deprivation therapy (ADT) or AR inhibition usually relapse into a more aggressive, castration resistant stage (CRPC). Circulating growth hormone (GH) has a permissive role in PCa development in animal models and in human PCa xenograft growth. As GH and GH receptor (GHR) are both expressed in PCa cells, we assessed whether prostatic GH production is linked to AR activity and whether GH contributes to the castration resistant phenotype...
April 21, 2017: Endocrinology
https://www.readbyqxmd.com/read/28443142/effects-of-androgen-deprivation-therapy-on-hypercoagulability-in-prostate-cancer-patients-a-prospective-longitudinal-study
#3
Harmanpreet Kaur, D Robert Siemens, Angela Black, Sylvia Robb, Spencer Barr, Charles H Graham, Maha Othman
INTRODUCTION: Androgen-deprivation therapy (ADT) is the mainstay of systemic therapy for advanced prostate cancer (PCa), but has significant adverse effects, including increasing concern for cardiovascular (CV) and thromboembolic (TE) complications. This study carefully investigates any relationship between ADT use and hypercoagulability as a possible mechanism of these adverse effects. METHODS: We performed a prospective, longitudinal study in a cohort of patients with advanced PCa initiating ADT (n=18)...
January 2017: Canadian Urological Association Journal, Journal de L'Association des Urologues du Canada
https://www.readbyqxmd.com/read/28443139/maximal-testosterone-suppression-in-the-management-of-recurrent-and-metastatic-prostate-cancer
#4
REVIEW
Laurence Klotz, Rodney H Breau, Loretta L Collins, Martin E Gleave, Tom Pickles, Frederic Pouliot, Fred Saad
INTRODUCTION: Testosterone suppression, or androgen-deprivation therapy (ADT), is an established treatment for recurrent and metastatic prostate cancer (PCa). Based on the accuracy and sensitivity of early assays (c. 1960-1970), the castrate testosterone level was set at ≤1.7 nmol/l. Improved sensitivity of testosterone assays shows that both surgical and medical castration can achieve levels <0.7 nmol/l. However, the clinical implications and importance of maximum testosterone suppression remains a subject of controversy...
January 2017: Canadian Urological Association Journal, Journal de L'Association des Urologues du Canada
https://www.readbyqxmd.com/read/28436889/design-and-implementation-of-a-tactile-stimulation-device-to-increase-auditory-discrimination
#5
Shahrzad Abbasi Baharanchi, Majid MohammadBeigi, Fatemeh Abnavi, Samira Tavakol
Reading is a complex process that requires various simultaneous brain processes. One of the most common types of reading disorders is developmental dyslexia, and one of the objectives of speech therapy sessions for children with developmental dyslexia is to increase their auditory discrimination. One of the most commonly used Auditory Discrimination Tests (ADTs) is Wepman's Auditory Discrimination Test (WADT). It includes minimal pair words categorized by characteristics of vowels and consonants. The goal of this research is to design and implement a tactile stimulation device based on Wepman's test to increase auditory discrimination in children with developmental dyslexia in therapy sessions, so that while playing each word for the children, vibrational cues are presented to their left palm and fingers...
April 24, 2017: IEEE Transactions on Haptics
https://www.readbyqxmd.com/read/28434661/retrospective-review-of-percutaneous-image-guided-ablation-of-oligometastatic-prostate-cancer-a-single-institution-experience
#6
Andrew J Erie, Jonathan M Morris, Brian T Welch, A Nicholas Kurup, Adam J Weisbrod, Thomas D Atwell, Grant D Schmit, Eugene D Kwon, Matthew R Callstrom
PURPOSE: To retrospectively review and report the efficacy and safety of percutaneous image-guided ablation (cryoablation or radiofrequency ablation) in the treatment of oligometastatic prostate cancer. MATERIALS AND METHODS: An institutional registry was retrospectively reviewed and revealed 16 patients with oligometastatic prostate cancer (median age, 67 y; range, 50-86 y) who underwent percutaneous image-guided ablation to treat 18 metastatic sites. A subgroup of 7 patients with 8 metastases were androgen-deprivation therapy (ADT)-naïve and underwent ablation to delay initiation of ADT...
April 20, 2017: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/28434181/management-options-for-biochemically-recurrent-prostate-cancer
#7
REVIEW
Farhad Fakhrejahani, Ravi A Madan, William L Dahut
Prostate cancer is the most common solid tumor malignancy in men worldwide. Treatment with surgery and radiation can be curative in organ-confined disease. Unfortunately, about one third of men develop biochemically recurrent disease based only on rising prostate-specific antigen (PSA) in the absence of visible disease on conventional imaging. For these patients with biochemical recurrent prostate cancer, there is no uniform guideline for subsequent management. Based on available data, it seems prudent that biochemical recurrent prostate cancer should initially be evaluated for salvage radiation or prostatectomy, with curative intent...
May 2017: Current Treatment Options in Oncology
https://www.readbyqxmd.com/read/28417429/approach-to-androgen-deprivation-in-the-prostate-cancer-patient-with-pre-existing-cardiovascular-disease
#8
REVIEW
Alyssa K Greiman, Thomas E Keane
PURPOSE OF REVIEW: Androgen deprivation therapy (ADT) is a mainstay of treatment for advanced prostate cancer. Several studies have reported an association between ADT and an increase in cardiovascular events, especially in those receiving gonadotropin-releasing hormone (GnRH) agonists compared to GnRH antagonists. We review the body of literature reporting the association of ADT and cardiovascular morbidity, and discuss the proposed mechanism of cardiovascular disease due to ADT including metabolic changes that may promote atherosclerosis and local hormonal effects that may increase plaque rupture and thrombosis...
June 2017: Current Urology Reports
https://www.readbyqxmd.com/read/28410987/alkaline-phosphatase-velocity-predicts-overall-survival-and-bone-metastasis-in-patients-with-castration-resistant-prostate-cancer
#9
Kai H Hammerich, Timothy F Donahue, Inger L Rosner, Jennifer Cullen, Huai-Ching Kuo, Lauren Hurwitz, Yongmei Chen, Melanie Bernstein, Jonathan Coleman, Daniel C Danila, Adam R Metwalli
INTRODUCTION AND OBJECTIVES: Identifying patients with prostate cancer (CaP) who will ultimately develop bone metastasis (BM) or die of disease is essential. Alkaline phosphatase velocity (APV) has been shown to predict overall survival (OS) and bone metastasis-free survival (BMFS) in an earlier study of an equal access military patient cohort of patients with castrate-resistant prostate cancer (CRPC). To confirm these findings, we examined a cohort of patients from a high-volume cancer center to validate a previous observation that faster alkaline phosphatase (AP) kinetics are predictive of OS and BMFS in this second cohort of patients...
April 11, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28409402/clinical-evaluation-of-tamsulosin-in-the-relief-of-lower-urinary-tract-symptoms-in-advanced-prostate-cancer-patients
#10
Tong Zhang, Haihu Wu, Shuai Liu, Wei He, Kejia Ding
PURPOSE: To assess the effectiveness and safety of tamsulosin combined with androgen deprivation therapy (ADT) for lower urinary tract symptoms (LUTS) in advanced prostate cancer (PC) patients. METHODS: Ninety PC patients with moderate-to-severe LUTS randomized into two groups of 45 each. One group received ADT (group 1), and the other received ADT plus tamsulosin (group 2) for 24 weeks. The outcome measures were changes in the International Prostate Symptom Score (IPSS), IPSS obstructive and irritative subscores, quality of life (QoL), maximum urinary flow rate (Q max), post-voiding residual (PVR) and prostate-specific antigen (PSA) from baseline...
April 13, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28409246/the-impact-of-androgen-deprivation-therapy-on-setup-errors-during-external-beam-radiation-therapy-for-prostate-cancer
#11
Cem Onal, Yemliha Dolek, Yurday Ozdemir
PURPOSE: To determine whether setup errors during external beam radiation therapy (RT) for prostate cancer are influenced by the combination of androgen deprivation treatment (ADT) and RT. MATERIALS AND METHODS: Data from 175 patients treated for prostate cancer were retrospectively analyzed. Treatment was as follows: concurrent ADT plus RT, 33 patients (19%); neoadjuvant and concurrent ADT plus RT, 91 patients (52%); RT only, 51 patients (29%). Required couch shifts without rotations were recorded for each megavoltage (MV) cone beam computed tomography (CBCT) scan, and corresponding alignment shifts were recorded as left-right (x), superior-inferior (y), and anterior-posterior (z)...
April 13, 2017: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
https://www.readbyqxmd.com/read/28405705/-cost-effectiveness-of-gnrh-antagonists-in-patients-with-prostate-cancer-and-cardiovascular-risk-comparative-analysis-against-leuprorelin-by-the-number-needed-to-treat
#12
D Anderson, J Lehmann, T Ecker, S Vosgerau, V Donatz
BACKGROUND: Recent studies suggest that androgen deprivation therapy (ADT) is associated with increased cardiovascular (CV) risk for patients with hormone-sensitive prostate cancer (PCa) and pre-existing CV disease. This risk seems to be different for the gonadotropin-releasing hormone (GnRH) agonists leuprolide and goserelin and GnRH antagonists, whereas the slightly more expensive GnRH antagonist shows a beneficial risk profile. The present study assesses the cost effectiveness of degarelix compared to leuprolide for PCa patients with increased CV risk...
April 12, 2017: Der Urologe. Ausg. A
https://www.readbyqxmd.com/read/28401696/understanding-the-crystal-packing-and-organic-thin-film-transistor-performance-in-isomeric-guest-host-systems
#13
Anna K Hailey, Anthony J Petty, Jennifer Washbourne, Karl J Thorley, Sean R Parkin, John E Anthony, Yueh-Lin Loo
In order to understand how additives influence the structure and electrical properties of active layers in thin-film devices, a compositionally identical but structurally different guest-host system based on the syn and anti isomers of triethylsilylethynyl anthradithiophene (TES ADT) is systematically explored. The mobility of organic thin-film transistors (OTFTs) comprising anti TES ADT drops with the addition of only 0.01% of the syn isomer and is pinned at the mobility of OTFTs having pure syn isomer after the addition of only 10% of the isomer...
April 12, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28395246/electrochemical-and-optical-study-of-metallothionein-interactions-with-prion-proteins
#14
Alzbeta Cardova, Pavlina Adam, Stefano Mariani, Lukas Richtera, Zbynek Heger, Jan Labuda, Maria Minunni, Vojtech Adam
The prion protein (PrP(C)) can be structurally shifted to its PrP(Sc) isoform causing a wide range of neurodegenerative diseases, which are currently incurable. There is an evidence that metallothioneins (MTs), and especially MT-3, are associated with neurodegenerative diseases. PrP(C) and MTs play pivotal roles in maintaining metal homeostasis; therefore, it is conceivable that each of them has its own significance in prion diseases. In this paper, we study the nature of interactions between PrP(C), MT, and copper ions, Cu(II), using the method of differential pulse voltammetry (DPV) coupled with adsorptive transfer stripping technique (AdTS)...
June 5, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28392836/androgen-deprivation-therapy-in-the-treatment-of-locally-advanced-nonmetastatic-prostate-cancer-practical-experience-and-a-review-of-the-clinical-trial-evidence
#15
REVIEW
Fouad Aoun, Ali Bourgi, Elias Ayoub, Elie El Rassy, Roland van Velthoven, Alexandre Peltier
Following new scientific insights, initial management for patients with high-risk nonmetastatic prostate cancer has changed considerably and rapidly over the last few years. Several clinical and pathologic variables should be taken into account when deciding the best treatment choice for those patients. These variables are summarized and discussed in detail. High radiation doses to the prostate are essential to achieve good local control in patients with high-risk nonmetastatic disease. Addition of androgen deprivation therapy (ADT) to radiation therapy has significantly improved overall survival and cancer-specific survival compared with radiation therapy alone without significantly increasing toxicity...
March 2017: Therapeutic Advances in Urology
https://www.readbyqxmd.com/read/28390298/androgen-deprivation-therapy-and-cardiovascular-risk-no-meaningful-difference-between-gnrh-antagonist-and-agonists-a-nationwide-population-based-cohort-study-based-on-2010-2013-french-health-insurance-data
#16
Lucie-Marie Scailteux, Sébastien Vincendeau, Frédéric Balusson, Christophe Leclercq, André Happe, Béranger Le Nautout, Elisabeth Polard, Emmanuel Nowak, Emmanuel Oger
BACKGROUND: Observational studies suggested that androgen deprivation therapy (ADT) is associated with an increased cardiovascular (CV) risk. They all compared ADT-treated cancer patients to non-treated patients or non-cancer subjects. Our aim was to evaluate whether CV risk differs by type of ADT. METHODS: Through nationwide population-based claims reimbursement database linked to hospital discharge database, we identified adult men with prostate cancer who initiated ADT (gonadotrophin releasing hormone [GnRH] agonist or antagonist, antiandrogen [AA], combined androgen blockade [CAB]) or had orchiectomy (OT) between 1st July, 2010, and the 31st December, 2011, and followed them up to 31st December, 2013...
April 5, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/28388886/allograft-tendon-reconstruction-of-the-anterior-talofibular-ligament-and-calcaneofibular-ligament-in-the-treatment-of-chronic-ankle-instability
#17
Weikai Wang, Guo Hong Xu
BACKGROUND: The purpose was retrospectively to investigate functional and clinical outcomes after anterior talofibular ligament (ATFL) and calcaneofibular ligament (CFL) reconstruction using a single allograft. METHODS: Patients with severe chronic lateral instability of the ankle underwent surgery after conservative treatment failed. Ultrasounds of the ankle were performed, and if the AFTL and CFL were completely torn without enough soft tissue for repair, the ligaments were reconstructed using allograft tendon...
April 8, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28386560/remote-magnetic-versus-manual-navigation-for-radiofrequency-ablation-of-paroxysmal-atrial-fibrillation-long-term-controlled-data-in-a-large-cohort
#18
Vikas Kataria, Benjamin Berte, Yves Vandekerckhove, Rene Tavernier, Mattias Duytschaever
Purpose. We aimed to study long-term outcome after pulmonary vein isolation (PVI) guided by remote magnetic navigation (RMN) and provided comparative data to outcome after manual navigation (MAN). Methods. Three hundred thirty-six patients with symptomatic paroxysmal AF underwent PVI by irrigated point-by-point radiofrequency (RF) ablation (RMN, n = 114 versus MAN, n = 222). Patients were followed up with symptom guided rhythm monitoring for a period up to 43 months. The end point of the study was freedom from repeat ablation after a single procedure and without antiarrhythmic drug treatment (ADT)...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28382925/combined-analysis-of-crmp4-methylation-levels-and-capra-s-score-predicts-metastasis-and-outcomes-in-prostate-cancer-patients
#19
Qun-Xiong Huang, Chu-Tian Xiao, Zheng Chen, Min-Hua Lu, Jun Pang, Jin-Ming Di, Zi-Huan Luo, Xin Gao
The present study analyzed the predictive value of combined analysis of collapsin response mediator protein 4 (CRMP4) methylation levels and the Cancer of the Prostate Risk Assessment (CAPRA-S) Postsurgical score of patients who required adjuvant hormone therapy (AHT) after radical prostatectomy (RP). We retrospectively analyzed 305 patients with prostate cancer (PCa) who received RP and subsequent androgen deprivation therapy (ADT). Two hundred and thirty patients with clinically high-risk PCa underwent immediate ADT, and 75 patients with intermediate risk PCa underwent deferred ADT...
April 4, 2017: Asian Journal of Andrology
https://www.readbyqxmd.com/read/28381574/defining-a-novel-role-for-the-coxsackie-and-adenovirus-receptor-in-human-adenovirus-serotype-5-transduction-in-vitro-in-the-presence-of-mouse-serum
#20
Estrella Lopez-Gordo, Andor Doszpoly, Margaret R Duffy, Lynda Coughlan, Angela C Bradshaw, Katie M White, Laura Denby, Stuart A Nicklin, Andrew H Baker
Human adenoviral serotype 5 (HAdV-5) vectors have predominantly hepatic tropism when delivered intravascularly, resulting in immune activation and toxicity. Coagulation FX binding to HAdV-5 mediates liver transduction and provides protection from virion neutralisation in mice. FX is dispensable for liver transduction in mice lacking IgM antibodies or complement, suggesting alternative transduction pathways exist. To identify novel factor(s) mediating HAdV-5 FX-independent entry, we investigated HAdV-5 transduction in vitro in the presence of serum from immunocompetent C57BL/6 or immunocompromised mice lacking IgM antibodies (Rag 2(-/-) and NSG)...
April 5, 2017: Journal of Virology
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