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Prostate Cancer Screening Test

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https://www.readbyqxmd.com/read/28327973/modeling-individual-and-relative-accuracy-of-screening-tools-in-geriatric-oncology
#1
C A Bellera, F Artaud, M Rainfray, P L Soubeyran, S Mathoulin-Pélissier
Background: Classification probabilities reflect to what degree a screening test represents the true disease state and include true positive (TPF) and false positive fractions (FPF). With two tests, one can compare TPF and FPF using relative probabilities which offer advantages in terms of interpretation and statistical modeling. Our objective was to highlight how individual and relative TPF and FPF can be easily estimated and compared within a regression modeling framework. This allows the modeling of tests' accuracy while adjusting for multiple covariates, and thus provides valuable information in addition to the crude TPF and FPF...
February 21, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28322897/the-state-of-pre-screening-discussions-about-psa-testing-following-implementation-of-the-2012-uspstf-task-force-statement
#2
George A Turini, Annie Gjelsvik, Joseph F Renzulli
OBJECTIVE: To determine if the quality of pre-screening discussions has changed following release of the USPSTF statement against prostate cancer screening. METHODS: This cross-sectional study utilized the 2012 and 2014 Behavioral Risk Factor Surveillance System (BRFSS) surveys. Respondents were categorized based on the year in which they responded to the BRFSS Survey. Quality of pre-screening discussion was operationalized as having discussed: only advantages, only disadvantages, both advantages and disadvantages, or neither...
March 16, 2017: Urology
https://www.readbyqxmd.com/read/28321787/a-mathematical-theory-of-shape-and-neuro-fuzzy-methodology-based-diagnostic-analysis-a-comparative-study-on-early-detection-and-treatment-planning-of-brain-cancer
#3
Subrata Kar, D Dutta Majumder
BACKGROUND: Investigation of brain cancer can detect the abnormal growth of tissue in the brain using computed tomography (CT) scans and magnetic resonance (MR) images of patients. The proposed method classifies brain cancer on shape-based feature extraction as either benign or malignant. The authors used input variables such as shape distance (SD) and shape similarity measure (SSM) in fuzzy tools, and used fuzzy rules to evaluate the risk status as an output variable. We presented a classifier neural network system (NNS), namely Levenberg-Marquardt (LM), which is a feed-forward back-propagation learning algorithm used to train the NN for the status of brain cancer, if any, and which achieved satisfactory performance with 100% accuracy...
March 20, 2017: International Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28271389/talking-about-your-prostate-perspectives-from-providers-and-community-members
#4
Seul Ki Choi, Jessica S Seel, Susan E Steck, Johnny Payne, Douglas McCormick, Courtney S Schrock, Daniela B Friedman
Prostate cancer (PrCA) screening is controversial, especially for African-American (AA) men who have higher PrCA incidence and mortality than other racial/ethnic groups. Patient-provider communication is important for the PrCA screening decision process. The study purpose was to better understand the current dialogue between primary care providers (PCPs-physicians and nurse practitioners) and AA men about PrCA prevention and screening. An online survey with 46 PCPs, education sessions (including pre/post surveys) with 56 AA men, and a forum with 5 panelists and 38 AA men for open dialogue were held to examine both provider and community perspectives on PrCA communication needs and practices...
March 7, 2017: Journal of Cancer Education: the Official Journal of the American Association for Cancer Education
https://www.readbyqxmd.com/read/28270948/neutrophil-gelatinase-associated-lipocalin-as-a-screening-test-in-prostate-cancer
#5
Necati Muşlu, Bahadır Ercan, Serin Akbayır, Şenay Balcı, H Didem Ovla, Murat Bozlu
OBJECTIVE: Prostate specific antigen (PSA) with digital rectal examination is used for diagnosis of prostate cancer (PCa), where definite diagnosis can only be made by prostate biopsy. Recently neutrophil gelatinase-associated lipocalin (NGAL), a lipocalin family member glycoprotein, come into prominence as a cancer biomarker. This study is aimed to test serum NGAL as a diagnostic biomarker for PCa and discriminate PCa from benign prostatic hyperplasia (BPH). MATERIAL AND METHODS: In this prospective study, 90 patients who underwent transrectal ultrasound-guided 12-core prostate biopsy between May 2015 and September 2015, were evaluated...
March 2017: Turkish Journal of Urology
https://www.readbyqxmd.com/read/28260648/impact-of-freeze-thaw-cycles-on-circulating-inflammation-marker-measurements
#6
Wen-Yi Huang, Troy J Kemp, Ruth M Pfeiffer, Ligia A Pinto, Allan Hildesheim, Mark P Purdue
BACKGROUND: Circulating inflammation markers are being increasingly measured in prospective cohorts to investigate cancer etiology. However, it is unclear how the measurements are affected by the freeze-thaw cycles of the specimens prior to marker analysis. METHODS: We compared concentrations of 45 inflammation markers between paired serum vials of 55 participants in the Prostate, Lung, Colorectal, and Ovarian (PLCO) Cancer Screening Trial that have undergone one (T1), two (T2), and three (T3) freeze-thaw cycles at the time of assay...
March 2, 2017: Cytokine
https://www.readbyqxmd.com/read/28258910/-prevalence-and-diversity-of-management-of-prostate-cancer-patients-classified-as-low-risk-using-d-amico-group-or-cancer-of-the-prostate-risk-assessment-capra-score-a-french-multicenter-study
#7
P Léon, G Cancel-Tassin, N Koutlidis, J Calves, M Funes de la Vega, G Fournier, A Valeri, L Cormier, S Larré, O Cussenot
OBJECTIVES: Currently, the French High Authority for Health does not recommend mass screening for prostate cancer (PCa), due to the risk of over-treatment, notably of low risk patients. Our study is intended to reflect the therapeutic attitudes for the management of patients classified as low risk of progression in French clinical centers. METHODS: For all positive prostate biopsies performed during 2012 and 2013 in five French departments of urology, clinicopathological characteristics required to calculate the d'Amico risk group and the Cancer of the Prostate Risk Assessment (CAPRA) score were filled...
February 28, 2017: Progrès en Urologie
https://www.readbyqxmd.com/read/28256901/diagnosis-of-typical-and-atypical-transitional-zone-prostate-cancer-and-its-mimics-at-multiparametric-prostate-mri
#8
Jinxing Yu, Ann S Fulcher, Sarah G Winks, Mary A Turner, Ryan D Clayton, Michael Brooks, Sean Li
Many of the current clinical screening methods for prostate cancer (PCa) such as prostate specific antigen (PSA) testing or trans-rectal ultrasound (TRUS)-guided prostate biopsy lack sensitivity and specificity for diagnosis of PCa of the transition zone (TZ). Recent technical advances in multiparametric-MRI (mp-MRI) have markedly improved detection of PCa of the TZ. However, there are many diagnostic challenges we still encounter in our daily practice that compromise the accuracy of the diagnosis. By performing both MRI-guided and US/MRI fusion-guided biopsies, we have gained extensive experience in the diagnosis of PCa of the TZ...
March 3, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28243543/development-and-validation-of-a-36-gene-sequencing-assay-for-hereditary-cancer-risk-assessment
#9
Valentina S Vysotskaia, Gregory J Hogan, Genevieve M Gould, Xin Wang, Alex D Robertson, Kevin R Haas, Mark R Theilmann, Lindsay Spurka, Peter V Grauman, Henry H Lai, Diana Jeon, Genevieve Haliburton, Matt Leggett, Clement S Chu, Kevin Iori, Jared R Maguire, Kaylene Ready, Eric A Evans, Hyunseok P Kang, Imran S Haque
The past two decades have brought many important advances in our understanding of the hereditary susceptibility to cancer. Numerous studies have provided convincing evidence that identification of germline mutations associated with hereditary cancer syndromes can lead to reductions in morbidity and mortality through targeted risk management options. Additionally, advances in gene sequencing technology now permit the development of multigene hereditary cancer testing panels. Here, we describe the 2016 revision of the Counsyl Inherited Cancer Screen for detecting single-nucleotide variants (SNVs), short insertions and deletions (indels), and copy number variants (CNVs) in 36 genes associated with an elevated risk for breast, ovarian, colorectal, gastric, endometrial, pancreatic, thyroid, prostate, melanoma, and neuroendocrine cancers...
2017: PeerJ
https://www.readbyqxmd.com/read/28239505/statins-and-metformin-use-is-associated-with-lower-psa-levels-in-prostate-cancer-patients-presenting-for-radiation-therapy
#10
Xiaonan Liu, Jing Li, Steven E Schild, Michael H Schild, William Wong, Sujay Vora, Michael G Herman, Mirek Fatyga
BACKGROUND: A possible association between the level of prostate specific antigen (PSA) and the use of some commonly prescribed medications has been reported in recent studies. Most of these studies were carried out in general populations of men who were screened for prostate cancer using the PSA test. We reported on the association between the initial PSA level and the use of statins, metformin and alpha-blockers in patients who were diagnosed with prostate cancer and presented for radiation therapy...
February 2017: Journal of Cancer Therapy
https://www.readbyqxmd.com/read/28236334/pi-radsv2-how-we-do-it
#11
Matthew D Greer, Peter L Choyke, Baris Turkbey
Much criticism has been leveled at screening for prostate cancer using prostate-specific antigen (PSA) testing, yet there is no suitable replacement to improve the detection of clinically significant cancer (CSC). Prostate multiparametric magnetic resonance imaging (mpMRI) combined with mpMRI-guided biopsies is one possible solution, as it reduces detection of low-grade disease and increases detection of CSC. However, mpMRI is critically limited by lack of standardization across institutions and low interobserver agreement...
February 25, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28220802/the-prostate-cancer-prevention-trial-risk-calculator-2-0-performs-equally-for-standard-biopsy-and-mri-us-fusion-guided-biopsy
#12
M Maruf, M Fascelli, A K George, M M Siddiqui, M Kongnyuy, J M DiBianco, A Muthigi, S Valayil, A Sidana, T P Frye, A Kilchevsky, P L Choyke, B Turkbey, B J Wood, P A Pinto
BACKGROUND: The Prostate Cancer Prevention Trial Risk Calculator 2.0 (PCPTRC) is a widely used risk-based calculator used to assess a man's risk of prostate cancer (PCa) before biopsy. This risk calculator was created from data of a patient cohort undergoing a 6-core sextant biopsy, and subsequently validated in men undergoing 12-core systematic biopsy (SBx). The accuracy of the PCPTRC has not been studied in patients undergoing magnetic resonance imaging/ultrasound (MRI/US) fusion-guided biopsy (FBx)...
February 21, 2017: Prostate Cancer and Prostatic Diseases
https://www.readbyqxmd.com/read/28216900/trichosanthes-kirilowii-exerts-androgenic-activity-via-regulation-of-psa-and-klk2-in-22rv1-prostate-cancer-cells
#13
Soo-Jin Jeong, Ji-Yoon Choi, Mi-Sook Dong, Chang-Seob Seo, Hyeun-Kyoo Shin
BACKGROUND: The androgen comprises a group of hormones that play roles in male reproductive activity as well as personal characteristics. OBJECTIVE: We investigated the androgenic activity of various herbal medicines in human prostate cancer 22Rv1 cells. MATERIALS AND METHODS: Herbal extracts of Trichosanthes kirilowii (TK), Asarum sieboldii (AS), Sanguisorba officinalis (SO), and Xanthium strumarium (XS) were selected to have androgenic effects based on a preliminary in vitro screening system...
January 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/28215847/prostate-cancer-screening-in-men-aged-50-to-69-years-sthlm3-a-prospective-population-based-diagnostic-study-gr%C3%A3-nberg-h-adolfsson-j-aly-m-nordstr%C3%A3-m-t-wiklund-p-brandberg-y-thompson-j-wiklund-f-lindberg-j-clements-m-egevad-l-eklund-m-lancet-oncol-2015-dec-16
#14
Eggener Scott, J Adolfsson, M Aly, T Nordström, P Wiklund, Y Brandberg, J Thompson, F Wiklund, J Lindberg, M Clements, L Egevad, M Eklund
BACKGROUND: The prostate-specific antigen (PSA) test is used to screen for prostate cancer but has a high false-positive rate that translates into unnecessary prostate biopsies and overdiagnosis of low-risk prostate cancers. We aimed to develop and validate a model to identify high-risk prostate cancer (with a Gleason score of at least 7) with better test characteristics than that provided by PSA screening alone. METHODS: The Stockholm 3 (STHLM3) study is a prospective, population-based, paired, screen-positive, diagnostic study of men without prostate cancer aged 50 to 69 years randomly invited by date of birth from the Swedish Population Register kept by the Swedish Tax Agency...
March 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28212119/the-role-of-biomarkers-in-undiagnosed-men
#15
Hasan Dani, Stacy Loeb
PURPOSE OF REVIEW: This article intends to review biomarkers derived from blood, urine, and tissue that can aid in the diagnosis of prostate cancer (PCa). RECENT FINDINGS: PCa screening requires tools that complement prostate-specific antigen (PSA) with a higher specificity for clinically significant disease. Novel blood biomarkers, such as the Prostate Health Index (phi) and 4Kscore, utilize isoforms of PSA to more accurately predict high-grade PCa than traditional tools such as PSA and the percentage free-to-total PSA...
February 16, 2017: Current Opinion in Urology
https://www.readbyqxmd.com/read/28210882/prostate-cancer-screening-decision-making-in-three-states-2013-behavioral-risk-factor-surveillance-system-analysis
#16
Jun Li, Ingrid J Hall, Guixiang Zhao
INTRODUCTION: Given the discordant prostate cancer screening recommendations in the United States, shared decision-making (SDM) has become increasingly important. The objectives of this study were to determine who made the final decision to obtain prostate-specific antigen (PSA)-based screening and identify factors associated with the screening decision made by both patients and their health care providers. METHODS: Using the 2013 Behavioral Risk Factor Surveillance System data from Delaware, Hawaii, and Massachusetts, we calculated weighted percentages of SDM...
March 2017: Cancer Causes & Control: CCC
https://www.readbyqxmd.com/read/28162857/design-synthesis-and-biological-evaluation-of-2-4-phenylthiazol-2-yl-isoindoline-1-3-dione-derivatives-as-anti-prostate-cancer-agents
#17
K Saravanan, R Elancheran, S Divakar, S Athavan Alias Anand, M Ramanathan, Jibon Kotoky, N K Lokanath, S Kabilan
The structural modification and molecular docking-based screening approaches on thiazole-based isoindolinediones were imposed to find the novel 2-(4-phenylthiazol-2-yl) isoindoline-1,3-dione derivatives. The best fit compounds (6a-n) were synthesized and evaluated their antiproliferative activities on the prostate cancer cell lines (PC-3 & LNCaP). Among them, the compound, 6m exhibited good activity, particularly on LNCaP (IC50=5.96±1.6μM), moderately active against PC-3 cell lines as compared to bicalutamide...
January 25, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28152910/choosing-wisely-in-oncology-are-we-ready-for-value-based-care
#18
Doug Blayney, Mohammad Jahanzeb, Pamela Kadlubek, August Knape, Merry Jennifer Markham, Trang Pham, Tracey L Evans
275 Background: The Choosing Wisely (CW) Campaign challenges patients, healthcare providers, and specialty disease societies to make better decisions about healthcare delivery. In 2012, Schnipper et al. published ASCO's Top Five List targeting overuse of medications, tests, and procedures that are costly and lack evidence. 1.) Do not use cancer-directed therapy for patients with low performance status (undocumented, 3 or 4). 2.) Do not use PET, CT and radionuclide bone scans in the staging of early prostate cancer...
March 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28152876/choosing-wisely-in-oncology-screening-for-a-new-primary-cancer-in-patients-with-metastatic-disease
#19
Lorraine Lipscombe, Hadas Fischer, Jill Tinmouth, Peter Austin, Kinwah Fung, Matthew C Cheung
295 Background: The Choosing Wisely Canada (CWC) campaign aims to start conversations about unnecessary treatments and procedures in order to improve quality of care. In particular, the CWC campaign in cancer seeks to reduce interventions that are not supported by evidence and contribute to unnecessary rising costs of cancer care. We sought to document the performance of cancer screening for a new primary cancer in patients with existing metastatic cancer (CWC statement #2). METHODS: We used population-based administrative health care databases from Ontario, Canada held at the Institute for Clinical Evaluative Sciences (ICES)...
March 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28152837/discussions-of-cancer-screening-what-do-physicians-say-what-do-patients-hear-and-how-much-shared-decision-making-occurs
#20
Gina Aharonoff, Maureen Bezuhly, Jessica Herzstein, Michael P Osborne, Floyd Jackson Fowler
180 Background: Like other medical interventions, cancer screening requires shared decision-making (SDM). To better understand the process, we are performing a cluster-randomized trial of educational supports to improve screening guideline compliance for breast, cervical, colorectal, lung and prostate cancer at two urban academic medical centers. We present interim results that focus on recalled SDM discussions. METHODS: We are enrolling an age- and sex-stratified sample of 216 patients aged 30 to 89 years, 18 treated by each of 12 primary care physicians at two affiliated hospitals before a periodic physical examination...
March 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
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