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https://www.readbyqxmd.com/read/29040258/prognostic-and-therapeutic-implications-of-dna-repair-gene-mutations-in-advanced-prostate-cancer
#1
Michael T Schweizer, Emmanuel S Antonarakis
Recent work directed toward understanding the molecular features of advanced prostate cancers has revealed a relatively high incidence of both germline and somatic alterations in genes involved in DNA damage repair (DDR). Many of these alterations likely play a critical role in the pathogenesis of more aggressive prostate cancers-leading to genomic instability and an increased probability of the development of lethal disease. However, because the ability to repair DNA damage with a high degree of fidelity is critical to an individual cell's survival, tumor cells harboring alterations in DDR pathway genes are also more susceptible to drugs that induce DNA damage or impair alternative DNA repair pathways...
October 2017: Clinical Advances in Hematology & Oncology: H&O
https://www.readbyqxmd.com/read/29040256/the-role-of-genomics-in-patients-with-advanced-prostate-cancer
#2
Maha H Hussain
No abstract text is available yet for this article.
October 2017: Clinical Advances in Hematology & Oncology: H&O
https://www.readbyqxmd.com/read/29037021/multimodal-therapy-for-locally-advanced-prostate-cancer-the-roles-of-radiotherapy-androgen-deprivation-therapy-and-their-combination
#3
REVIEW
Sung Uk Lee, Kwan Ho Cho
Locally advanced prostate cancer (LAPC) is defined as histologically proven T3-4 prostatic adenocarcinoma. In this review, we define the individual roles of radiotherapy (RT), short-term (ST-) and long-term (LT-) androgen deprivation therapy (ADT), and their combination in multimodal therapy for LAPC. Despite limitations in comparing the clinical outcomes among published papers, in the present study, a trend of 10-year clinical outcomes was roughly estimated by calculating the average rates weighted by the cohort number...
September 2017: Radiation Oncology Journal
https://www.readbyqxmd.com/read/29036567/extra-pituitary-expressed-fsh-is-it-physiologically-important
#4
Anushka Jayaraman, T Rajendra Kumar
Pituitary gonadotropes synthesize and secrete follicle-stimulating hormone (FSH). FSH is a heterodimer that consists of an α-and a β-subunit. The α - subunit is common to other pituitary and placental glycoprotein hormones and the β-subunit is the hormone/receptor specific subunit. Although the pituitary is the main tissue that accounts for circulating hormone, previous and recent reports indicate extra-pituitary sources of FSH production including mouse gonads, human stomach, prostate, umbilical cord vein endothelial cells, uterine myometrium, placenta and chicken abdominal adipose tissue...
September 20, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/29036016/exercise-preserves-physical-function-in-prostate-cancer-patients-with-bone-metastases
#5
Daniel A Galvão, Dennis R Taaffe, Nigel Spry, Prue Cormie, David Joseph, Suzanne K Chambers, Raphael Chee, Carolyn Peddle-McIntyre, Nicolas H Hart, Freerk T Baumann, James Denham, Michael Baker, Robert U Newton
PURPOSE: The presence of bone metastases has excluded participation of cancer patients in exercise interventions and is a relative contraindication to supervised exercise in the community setting due to concerns of fragility fracture. We examined the efficacy and safety of a modular multi-modal exercise program in prostate cancer patients with bone metastases. METHODS: Between 2012 and 2015, 57 prostate cancer patients (70.0±8.4 years; BMI 28.7±4.0 kg/m) with bone metastases (pelvis 75...
October 14, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29036003/68ga-prostate-specific-membrane-antigen-avid-tubercular-lesions-mimicking-prostate-cancer-metastasis-on-simultaneous-prostate-specific-membrane-antigen-pet-mri
#6
Aashim Ahuja, Sangeeta Taneja, Kiran Thorat, Amarnath Jena
Ga-prostate-specific membrane antigen (PSMA) has gained increasing interest as a target molecule in imaging of prostate cancer because of its selective overexpression in local prostate cancer lesions and metastasis. We report a case of a 62-year-old man with raised serum prostate-specific antigen levels who presented for Ga-PSMA HBED-CC simultaneous PET/MRI for prostate cancer evaluation. A PSMA-nonavid PI-RADS 5 (Prostate Imaging-Reporting and Data System) lesion was confirmed as adenocarcinoma on histopathology...
October 13, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/29035995/internal-auditory-canal-tumor-as-an-incidental-finding-on-a-choline-pet-ct-scan-in-a-prostate-cancer-patient
#7
Julia Malamitsi, Roxanni Efthymiadou, Theodore Pipikos, Fani Vlachou, Vassilis Prassopoulos
An 84-year-old man with a history of prostate cancer, treated with radiotherapy, presented with an increase in PSA levels. F-choline PET/CT showed foci of increased choline uptake in L4 and L5 vertebrae, suggestive of bone metastases and another focus in the right cerebellopontine angle. A brain MRI revealed a focus of intense contrast enhancement in the same region, consistent with an acoustic neuroma.
October 13, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/29035829/mir-129-inhibits-cell-proliferation-and-metastasis-by-targeting-ets1-via-pi3k-akt-mtor-pathway-in-prostate-cancer
#8
Song Xu, Jingping Ge, Zhengyu Zhang, Wenquan Zhou
New evidence suggests that microRNAs (miRNAs) play an important role in regulating the development and progression of prostate cancer. However, their specific functions and mechanisms remained to be further explored. MiR-129 has been reported in gastric cancers, colon cancer and lung cancer. In this study, we disclosed a new tumor suppresser function of miR-129 in prostate cancer. The purpose of our study is to clarify the effects of miR-129 in cellular processes correlated with cancer development and progression of prostate cancer cell by regulating ETS1...
October 13, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29035642/racial-and-ethnic-disparities-in-cancer-survival-the-contribution-of-tumor-sociodemographic-institutional-and-neighborhood-characteristics
#9
Libby Ellis, Alison J Canchola, David Spiegel, Uri Ladabaum, Robert Haile, Scarlett Lin Gomez
Purpose Racial/ethnic disparities in cancer survival in the United States are well documented, but the underlying causes are not well understood. We quantified the contribution of tumor, treatment, hospital, sociodemographic, and neighborhood factors to racial/ethnic survival disparities in California. Materials and Methods California Cancer Registry data were used to estimate population-based cancer-specific survival for patients diagnosed with breast, prostate, colorectal, or lung cancer between 2000 and 2013 for each racial/ethnic group (non-Hispanic black, Hispanic, Asian American and Pacific Islander, and separately each for Chinese, Japanese, and Filipino) compared with non-Hispanic whites...
October 16, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/29035540/targeted-clinical-nanoparticles-for-precision-cancer-therapy-based-on-disease-specific-molecular-inflection-points
#10
Charalambos Kaittanis, Alexander Bolaender, Barney Yoo, Nilesh Shah, Ouathek Ouerfelli, Jan Grimm
ional approaches based on clinical modular nanoplatforms are needed, in order to treat solid cancers according to their discrete molecular features. In the present study, we show that the clinical nanopharmaceutical Ferumoxytol, which consists of a glucose-based coat surrounding an iron oxide core, could identify molecular characteristics of prostate cancer, corresponding to unique phases of the disease continuum. By affixing a targeting probe for the prostate-specific membrane antigen on its surface, the nanopharmaceutical was able to assess the functional state of the androgen receptor pathway via MRI, guiding therapy and delivering it with the same clinical nanoparticle...
October 16, 2017: Nano Letters
https://www.readbyqxmd.com/read/29035180/ten-year-trends-in-preventive-service-use-before-and-after-prostate-cancer-diagnosis-a-comparison-with-noncancer-controls
#11
Lauren P Wallner, Jeffrey M Slezak, Ronald K Loo, Roshan Bastani, Steven J Jacobsen
CONTEXT: Few studies have assessed the longer-term quality of preventive care in prostate cancer (PCa) survivors. OBJECTIVE: To compare the rates of preventive services among PCa survivors five years before and after diagnosis, to men without PCa. DESIGN: Men enrolled in Kaiser Permanente Southern California with newly diagnosed PCa (2002-2008) were matched 1:1 to men without a PCa diagnosis on age, race, and timing of prostate-specific antigen test (N = 31,180)...
2017: Permanente Journal
https://www.readbyqxmd.com/read/29034790/minimal-toxicity-after-proton-beam-therapy-for-prostate-and-pelvic-nodal-irradiation-results-from-the-proton-collaborative-group-reg001-09-trial
#12
Michael D Chuong, William Hartsell, Gary Larson, Henry Tsai, George E Laramore, Carl J Rossi, J Ben Wilkinson, Adeel Kaiser, Carlos Vargas
BACKGROUND: Proton beam therapy (PBT) reduces normal organ dose compared to intensity modulated radiation therapy (IMXT) for prostate cancer patients who receive pelvic radiation therapy. It is not known whether this dosimetric advantage results in less gastrointestinal (GI) and genitourinary (GU) toxicity than would be expected from IMXT. MATERIAL AND METHODS: We evaluated treatment parameters and toxicity outcomes for non-metastatic prostate cancer patients who received pelvic radiation therapy and enrolled on the PCG REG001-09 trial...
October 14, 2017: Acta Oncologica
https://www.readbyqxmd.com/read/29034697/factors-influencing-black-men-and-their-partners-knowledge-of-prostate-cancer-screening-a-literature-review
#13
Phyllis Ahiagba, Obrey Alexis, Aaron James Worsley
Prostate cancer is the most commonly diagnosed cancer in men in the UK, with 46 690 new cases in 2014. While there is sufficient research on this topic in the USA, there is no review in the UK regarding both black men and their significant others' perspective on prostate cancer screening. AIM: To identify and explore factors that may influence black men and their significant others' knowledge and awareness of prostate cancer screening. METHOD: A literature search revealed seven relevant articles...
October 12, 2017: British Journal of Nursing: BJN
https://www.readbyqxmd.com/read/29034575/life-after-prostate-cancer-a-systematic-literature-review-and-thematic-synthesis-of-the-post-treatment-experiences-of-black-african-and-black-caribbean-men
#14
REVIEW
O Bamidele, H McGarvey, B M Lagan, N Ali, F Chinegwundoh Mbe, K Parahoo, E McCaughan
Evidence shows that there are significant ethnic variations in prostate cancer prevalence and outcomes. Specifically, Black African and Black Caribbean men may encounter different post-treatment experiences than Caucasian men due to their disproportionately higher risk of being diagnosed with advanced prostate cancer. But to date, no review of these experiences has been undertaken. This review synthesised findings from existing literature on the post-treatment experiences of Black African and Black Caribbean men with prostate cancer and identified pertinent issues which may be useful to inform practice and future research...
October 16, 2017: European Journal of Cancer Care
https://www.readbyqxmd.com/read/29034282/differentiation-of-prostate-cancer-lesions-in-the-transition-zone-by-diffusion-weighted-mri
#15
Jie Bao, Ximing Wang, Chunhong Hu, Jianquan Hou, Fenglin Dong, Lingchuan Guo
OBJECTIVE: To differentiate prostate cancer lesions in transition zone by diffusion-weighted-MRI (DW-MRI). METHODS: Data from a total of 63 patients who underwent preoperative DWI (b of 0-1000 s/mm(2)) were prospectively collected and processed by a monoexponential (DWI) model and compared with a biexponential (IVIM) model for quantitation of apparent diffusion coefficients (ADCs), perfusion fraction f, diffusivity D and pseudo-diffusivity D*. Histogram analyses were performed by outlining entire-tumor regions of interest (ROIs)...
2017: European Journal of Radiology Open
https://www.readbyqxmd.com/read/29034236/prognostic-value-of-the-new-prostate-cancer-international-society-of-urological-pathology-grade-groups
#16
Anne Offermann, Silke Hohensteiner, Christiane Kuempers, Julika Ribbat-Idel, Felix Schneider, Finn Becker, Marie Christine Hupe, Stefan Duensing, Axel S Merseburger, Jutta Kirfel, Markus Reischl, Verena Lubczyk, Rainer Kuefer, Sven Perner
Gleason grading is the best independent predictor for prostate cancer (PCa) progression. Recently, a new PCa grading system has been introduced by the International Society of Urological Pathology (ISUP) and is recommended by the World Health Organization (WHO). Following studies observed more accurate and simplified grade stratification of the new system. Aim of this study was to compare the prognostic value of the new grade groups compared to the former Gleason Grading and to determine whether re-definition of Gleason Pattern 4 might reduce upgrading from prostate biopsy to radical prostatectomy (RP) specimen...
2017: Frontiers in Medicine
https://www.readbyqxmd.com/read/29034221/atypical-small-acinar-proliferation-and-two-or-more-cores-of-high-grade-intraepithelial-neoplasia-on-a-previous-prostate-biopsy-are-significant-predictors-of-cancer-during-a-transperineal-template-guided-saturation-biopsy-aimed-at-sampling-one-core-for-each
#17
Yasushi Nakai, Nobumichi Tanaka, Makito Miyake, Shunta Hori, Yoshihiro Tatsumi, Yosuke Morizawa, Tomomi Fujii, Noboru Konishi, Kiyohide Fujimoto
OBJECTIVE: The objective of this study was to evaluate whether high-grade prostatic intraepithelial neoplasia (HGPIN) and atypical small acinar proliferation (ASAP) predict prostate cancer (PCa) during repeat transperineal template saturation biopsy with a high number of cores per prostate volume in patients with persistent clinical suspicion of PCa who underwent at least one previous negative transrectal ultrasound (TRUS)-guided biopsy. METHODS: We retrospectively evaluated 135 consecutive patients with persistent clinical suspicion of PCa, despite a set of negative TRUS-guided biopsies and increasing prostate-specific antigen levels; abnormal findings on digital rectal examination, TRUS, or magnetic resonance imaging; previous biopsy showing HGPIN; and previous biopsy showing atypical glands...
2017: Research and Reports in Urology
https://www.readbyqxmd.com/read/29033673/automated-bone-scan-index-as-predictors-of-survival-in-prostate-cancer
#18
Joko Wiyanto, Rini Shintawati, Budi Darmawan, Basuki Hidayat, Achmad Hussein Sundawa Kartamihardja
Prostate cancer (PCa) is the second most diagnosed cancer in men. Early diagnosis and right management of PCa is critical to reducing deaths; the life expectancy is the main factors to be considered in the management of PCa. Among patients who die from PCa, the incidence of skeletal involvement appears to be >85%. Bone scan (BS) is the most common method for monitoring bone metastases in patients with PCa. The extent of bone metastasis was also associated with patient survival until now there is no clinically useful technique for measuring bone tumors and includes this information in the risk assessment...
October 2017: World Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/29033565/double-receptor-targeting-multifunctional-iron-oxide-nanoparticles-drug-delivery-system-for-the-treatment-and-imaging-of-prostate-cancer
#19
Md Shakir Uddin Ahmed, Ahmad Bin Salam, Clayton Yates, Kyle Willian, Jesse Jaynes, Timothy Turner, Mohamed O Abdalla
As an alternative therapeutic treatment to reduce or eliminate the current side effects associated with advanced prostate cancer (PCa) chemotherapy, a multifunctional double-receptor-targeting iron oxide nanoparticles (IONPs) (luteinizing hormone-releasing hormone receptor [LHRH-R] peptide- and urokinase-type plasminogen activator receptor [uPAR] peptide-targeted iron oxide nanoparticles, LHRH-AE105-IONPs) drug delivery system was developed. Two tumor-targeting peptides guided this double-receptor-targeting nanoscale drug delivery system...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29033190/3d-modelling-of-radical-prostatectomy-specimens-developing-a-method-to-quantify-tumor-morphometry-for-prostate-cancer-risk-prediction
#20
Marcus C Hovens, Kevin Lo, Michael Kerger, John Pedersen, Timothy Nottle, Natalie Kurganovs, Andrew Ryan, Justin S Peters, Daniel Moon, Anthony J Costello, Niall M Corcoran, Matthew K H Hong
Prostate cancer displays a wide spectrum of clinical behaviour from biological indolence to rapidly lethal disease, but we remain unable to accurately predict an individual tumor's future clinical course at an early curable stage. Beyond basic dimensions and volume calculations, tumor morphometry is an area that has received little attention, as it requires the analysis of the prostate gland and tumor foci in three-dimensions. Previous efforts to generate three-dimensional prostate models have required specialised graphics units and focused on the spatial distribution of tumors for optimisation of biopsy strategies rather than to generate novel morphometric variables such as tumor surface area...
September 27, 2017: Pathology, Research and Practice
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