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https://www.readbyqxmd.com/read/27932557/quantitative-parameters-in-psma-targeted-pet-imaging-with-18f-dcfpyl-variability-in-normal-organ-uptake
#1
Xin Li, Steven P Rowe, Jeffrey P Leal, Michael A Gorin, Mohamad E Allaf, Ashley E Ross, Kenneth J Pienta, Martin A Lodge, Martin G Pomper
PURPOSE: (18)F-DCFPyL is a small-molecule inhibitor of the prostate-specific membrane antigen (PSMA) that has shown promise for evaluation of primary and metastatic prostate cancer (PC) using positron emission tomography (PET). Measuring the variability in normal organ uptake of (18)F-DCFPyL is necessary to understand its biodistribution, aid image interpretation, judge the reliability of scan quantification, and to provide a basis for therapeutic monitoring. METHODS: 65 consecutive (18)F-DCFPyL PET/CT scans from 64 patients with a history of PC were analyzed...
December 8, 2016: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/27932514/long-term-therapy-with-wu-ling-san-a-popular-antilithic-chinese-herbal-formula-did-not-prevent-subsequent-stone-surgery-a-nationwide-population-based-cohort-study
#2
San-Yuan Wu, Huey-Yi Chen, Kao-Sung Tsai, Jen-Huai Chiang, Chih-Hsin Muo, Fung-Chang Sung, Yung-Hsiang Chen, Wen-Chi Chen
Traditional Chinese herbal medicine (CHM), which is widely used to treat pain and urolithiasis, is a promising therapy for urinary stone prevention. This study investigated the clinical efficacy of a popular CHM, Wu-Ling-San (WLS), in Taiwan for the prophylaxis of recurrent nephrolithiasis as assessed by surgical stone treatment via a nationwide population-based cohort study. The National Health Insurance Research Database, 2000-2010, which included one million patient records. All patients diagnosed with stone disease at the beginning of the study...
2016: Inquiry: a Journal of Medical Care Organization, Provision and Financing
https://www.readbyqxmd.com/read/27932164/retzius-space-preservation-technique-for-robotic-assisted-laparoscopic-radical-prostatectomy-in-a-kidney-transplant-patient-first-case-in-thailand-and-our-first-experience
#3
P Jenjitranant, P Sangkum, P Sirisreetreerux, W Viseshsindh, S Patcharatrakul, W Kongcharoensombat
OBJECTIVE: The aim of this work was to report our experience in robotic-assisted laparoscopic radical prostatectomy for the treatment of localized prostate cancer in a kidney transplant recipient. METHODS: A 73-year-old man with chronic renal failure underwent living-donor kidney transplantation (KT) in 1993. His baseline creatinine after KT was ∼1.2 mg/dL. He developed lower urinary tract symptoms in 1999. He was diagnosed with benign prostatic hyperplasia and treated accordingly...
November 2016: Transplantation Proceedings
https://www.readbyqxmd.com/read/27920558/monitoring-the-effects-of-doxorubicin-on-3d-spheroid-tumor-cells-in-real-time
#4
NamHuk Baek, Ok Won Seo, MinSung Kim, John Hulme, Seong Soo A An
Recently, increasing numbers of cell culture experiments with 3D spheroids presented better correlating results in vivo than traditional 2D cell culture systems. 3D spheroids could offer a simple and highly reproducible model that would exhibit many characteristics of natural tissue, such as the production of extracellular matrix. In this paper numerous cell lines were screened and selected depending on their ability to form and maintain a spherical shape. The effects of increasing concentrations of doxorubicin (DXR) on the integrity and viability of the selected spheroids were then measured at regular intervals and in real-time...
2016: OncoTargets and Therapy
https://www.readbyqxmd.com/read/27920365/maximizing-the-usefulness-of-statistical-classifiers-for-two-populations-with-illustrative-applications
#5
Daniel R Jeske, Steven Smith
The usefulness of two-class statistical classifiers is limited when one or both of the conditional misclassification rates is unacceptably high. Incorporating a neutral zone region into the classifier provides a mechanism to refer ambiguous cases to follow-up where additional information might be obtained to clarify the classification decision. Through the use of the neutral zone region, the conditional misclassification rates can be controlled and the classifier becomes useful. Three real-life examples, including applications to prostate cancer and kidney dysfunction following heart surgery, are used to illustrate how neutral zone regions can extract utility from disappointing classifiers that might otherwise be abandoned...
December 5, 2016: Statistical Methods in Medical Research
https://www.readbyqxmd.com/read/27903157/obesity-and-other-cancers
#6
Lin Yang, Bettina F Drake, Graham A Colditz
Purpose Evidence on overweight, obesity, and an increased risk of cancer continues to accumulate and was updated in the 2016 handbook on weight control from the International Agency for Research on Cancer (IARC). The underlying primary data, together with dose-response meta-analysis and, finally, pooled analysis of individual participant data, add insight into the relation between obesity and cancer risk and prognosis. We summarize the evidence for mortality from prostate cancer, hematologic malignancies, and kidney cancer...
December 10, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/27901089/a-silac-based-method-for-quantitative-proteomic-analysis-of-intestinal-organoids
#7
Alexis Gonneaud, Christine Jones, Naomie Turgeon, Dominique Lévesque, Claude Asselin, François Boudreau, François-Michel Boisvert
Organoids have the potential to bridge 3D cell culture to tissue physiology by providing a model resembling in vivo organs. Long-term growing organoids were first isolated from intestinal crypt cells and recreated the renewing intestinal epithelial niche. Since then, this technical breakthrough was applied to many other organs, including prostate, liver, kidney and pancreas. We describe here how to apply a SILAC-based quantitative proteomic approach to measure protein expression changes in intestinal organoids under different experimental conditions...
November 30, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27900057/in-vitro-and-in-vivo-inhibition-of-tumor-cell-viability-by-combined-dihydroartemisinin-and-doxorubicin-treatment-and-the-underlying-mechanism
#8
Xiang Tai, Xiao-Bei Cai, Zhang Zhang, Rui Wei
The natural extract artemisinin and its derivatives have good anticancer activity. The present study aimed to investigate the in vitro inhibitory effects of combined dihydroartemisinin (DHA) and doxorubicin (DOX) treatment on a variety of tumor cell lines (HeLa, OVCAR-3, MCF-7, PC-3 and A549), as well as the underlying mechanisms. In addition, the in vivo effects of DHA and DOX were evaluated using a mouse HeLa tumor model. The HeLa, OVCAR-3, MCF-7, PC-3 and A549 cells were treated with a combination of DHA and DOX, and the effect on cell viability was detected by Cell Counting kit-8...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27893755/quantification-of-arachidonic-acid-and-its-metabolites-in-rat-tissues-by-uhplc-ms-ms-application-for-the-identification-of-potential-biomarkers-of-benign-prostatic-hyperplasia
#9
Qiaoxia Bian, Weihui Wang, Nannan Wang, Yan Peng, Wen Ma, Ronghua Dai
To evaluate the potential relationship between benign prostatic hyperplasia (BPH) and the arachidonic acid (AA) metabolome, a UHPLC-MS/MS method has been developed and validated for simultaneous determination of AA and its cyclooxygenase(COX) and lipoxygenase(LOX) pathway metabolites (15-HETE, 12-HETE, TXA2, 5-HETE, AA, PGI2, PGF2α, 8-HETE, PGD2, PGE2 and LTB4) in rat tissues. The analytes were extracted from tissue samples with a protein precipitation procedure and then separated on a Shim-pack XR-ODSC18 column with 0...
2016: PloS One
https://www.readbyqxmd.com/read/27891445/breast-cancer-with-synchronous-renal-cell-carcinoma-a-rare-presentation
#10
Ravi Arjunan, Durgesh Kumar, K V Veerendra Kumar, C S Premlatha
Primary cancer arising from multiple organs is a well known fact. Synchronous tumours have been most commonly associated with kidney cancer. Bladder, prostate, colorectal and lung cancer are the most common synchronous primaries with Renal Cell Carcinoma (RCC) identified till date. We found metachronous tumours of breast with RCC in literature search which included both metastatic tumours as well second primaries. Overall, 25 cases of metastatic breast tumours and eight cases of second primary in previously treated RCC have been reported in the literature...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27879491/18f-fdg-pet-ct-in-renal-infections-evidence-of-acute-pyelonephritis-in-a-horseshoe-kidney
#11
Maxime Morelle, Alice Jaillard, Dimitri Bellevre, Guillaume Collet, Grégory Petyt
A 58-year-old paraplegic patient was prescribed F-FDG for persistent inflammatory syndrome after aortic surgery for dissection. The examination was performed on a Siemens mCT Flow PET/CT and shows a moderate prostate uptake, related to prostatitis on self-catheterization and a focal renal cortical hypermetabolism of the left medial midpole of a horseshoe kidney, which corresponds to renal parenchyma on the CT, and suggests pyelonephritis, confirmed by Tc-DMSA SPECT/CT.
November 22, 2016: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/27872478/circulating-tumour-cells-as-biomarkers-of-prostate-bladder-and-kidney-cancer
#12
REVIEW
Michael A Gorin, James E Verdone, Emma van der Toom, Trinity J Bivalacqua, Mohamad E Allaf, Kenneth J Pienta
Circulating tumour cells (CTCs) have been studied as biomarkers of a number of solid malignancies. Potential clinical applications for CTC analysis include early cancer detection, disease staging, monitoring for recurrence, prognostication, and to aid in the selection of therapy. In the field of urologic oncology, CTCs have been most widely studied as prognostic biomarkers of castration-resistant prostate cancer. Additionally, emerging data support a role for CTCs to help identify which patients are most likely to respond to novel androgen-pathway targeted therapies, such as abiraterone and enzalutamide...
November 22, 2016: Nature Reviews. Urology
https://www.readbyqxmd.com/read/27865131/evaluation-of-cellular-uptake-cytotoxicity-and-cellular-ultrastructural-effects-of-heteroleptic-oxidovanadium-iv-complexes-of-salicylaldimines-and-polypyridyl-ligands
#13
Gonzalo Scalese, Isabel Correia, Julio Benítez, Santiago Rostán, Fernanda Marques, Filipa Mendes, António Pedro Matos, João Costa Pessoa, Dinorah Gambino
Searching for prospective vanadium-based drugs for cancer treatment, a new series of structurally related [V(IV)O(L-2H)(NN)] compounds (1-8) was developed. They include a double deprotonated salicylaldimine Schiff base ligand (L-2H) and different NN-polypyridyl co-ligands having DNA intercalating capacity. Compounds were characterized in solid state and in solution. EPR spectroscopy suggests that the NN ligands act as bidentate and bind through both nitrogen donor atoms in an axial-equatorial mode. The cytotoxicity was evaluated in human tumoral cells (ovarian A2780, breast MCF7, prostate PC3)...
November 9, 2016: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/27852261/mpc1-and-mpc2-expressions-are-associated-with-favorable-clinical-outcomes-in-prostate-cancer
#14
Xiaoli Li, Yasai Ji, Gaoyang Han, Xiaoran Li, Zhirui Fan, Yaqing Li, Yali Zhong, Jing Cao, Jing Zhao, Mingzhi Zhang, Jianguo Wen, Mariusz Adam Goscinski, Jahn M Nesland, Zhenhe Suo
BACKGROUND: Cancer cells exhibit an altered metabolism, which is characterized by a preference for aerobic glycolysis more than mitochondrial oxidation of pyruvate. Mitochondrial pyruvate carrier 1 (MPC1) and mitochondrial pyruvate carrier 2 (MPC2) play a bottleneck role by transporting pyruvate into mitochondrial through the mitochondrial inner membrane. Therefore, their protein expression in cancers may be of clinical consequences. There are studies showing low levels of MPC1 expression in colon, kidney and lung cancers, and the expression of MPC1 correlates with poor prognosis...
November 16, 2016: BMC Cancer
https://www.readbyqxmd.com/read/27833659/identification-of-activated-enhancers-and-linked-transcription-factors-in-breast-prostate-and-kidney-tumors-by-tracing-enhancer-networks-using-epigenetic-traits
#15
Suhn Kyong Rhie, Yu Guo, Yu Gyoung Tak, Lijing Yao, Hui Shen, Gerhard A Coetzee, Peter W Laird, Peggy J Farnham
BACKGROUND: Although technological advances now allow increased tumor profiling, a detailed understanding of the mechanisms leading to the development of different cancers remains elusive. Our approach toward understanding the molecular events that lead to cancer is to characterize changes in transcriptional regulatory networks between normal and tumor tissue. Because enhancer activity is thought to be critical in regulating cell fate decisions, we have focused our studies on distal regulatory elements and transcription factors that bind to these elements...
2016: Epigenetics & Chromatin
https://www.readbyqxmd.com/read/27831506/causes-of-death-among-cancer-patients
#16
N G Zaorsky, T M Churilla, B L Egleston, S G Fisher, J A Ridge, E M Horwitz, Je Meyer Md
BACKGROUND: The purpose of our study was to characterize the causes of death among cancer patients as a function of objectives: (I) calendar year, (II) patient age, and (III) time after diagnosis. PATIENTS AND METHODS: US death certificate data in SEER Stat 8.2.1 were used to categorize cancer patient death as being due to index-cancer, non-index-cancer, and non-cancer cause from 1973 to 2012. In addition, data were characterized with standardized mortality ratios (SMRs), which provide the relative risk of death compared to all persons...
November 9, 2016: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/27824318/concurrent-diffuse-pyelonephritis-and-prostatitis-discordant-findings-on-sequential-fdg-pet-ct-and-67ga-spect-ct-imaging
#17
Robert Lucaj, Dwight M Achong
A 45-year-old man underwent FDG PET/CT for initial imaging evaluation of recurrent Escherichia coli urinary tract infections, which demonstrated no significant FDG uptake in either kidney and subtle FDG uptake in the right prostate lobe. Subsequent Ga SPECT/CT demonstrated abnormal intense gallium uptake throughout the right kidney and entire prostate gland, clearly discordant with PET/CT findings and consistent with unexpected concurrent pyelonephritis and prostatitis. Although FDG has effectively replaced Ga in everyday clinical practice, the current case serves as a reminder that there is still a role for Ga in the evaluation of genitourinary infections...
January 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/27819754/urological-cancer-related-to-familial-syndromes
#18
Walter Henriques da Costa, George Jabboure, Isabela Werneck da Cunha
Cancer related to hereditary syndromes corresponds to approximately 5-10% of all tumors. Among those from the genitourinary system, many tumors had been identified to be related to genetic syndromes in the last years with the advent of new molecular genetic tests. New entities were described or better characterized, especially in kidney cancer such as hereditary leiomyomatosis renal cell carcinoma (HLRCC), succinate de¬hydrogenase kidney cancer (SDH-RCC), and more recently BAP1 germline mutation re¬lated RCC...
November 2, 2016: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/27819678/tet2-binds-the-androgen-receptor-and-loss-is-associated-with-prostate-cancer
#19
M L Nickerson, S Das, K M Im, S Turan, S I Berndt, H Li, H Lou, S A Brodie, J N Billaud, T Zhang, A J Bouk, D Butcher, Z Wang, L Sun, K Misner, W Tan, A Esnakula, D Esposito, W Y Huang, R N Hoover, M A Tucker, J R Keller, J Boland, K Brown, S K Anderson, L E Moore, W B Isaacs, S J Chanock, M Yeager, M Dean, T Andresson
Genetic alterations associated with prostate cancer (PCa) may be identified by sequencing metastatic tumour genomes to identify molecular markers at this lethal stage of disease. Previously, we characterized somatic alterations in metastatic tumours in the methylcytosine dioxygenase ten-eleven translocation 2 (TET2), which is altered in 5-15% of myeloid, kidney, colon and PCas. Genome-wide association studies previously identified non-coding risk variants associated with PCa and melanoma. We perform fine-mapping of PCa risk across TET2 using genotypes from the PEGASUS case-control cohort and identify six new risk variants in introns 1 and 2...
November 7, 2016: Oncogene
https://www.readbyqxmd.com/read/27819669/a-cdk2-activity-signature-predicts-outcome-in-cdk2-low-cancers
#20
S R McCurdy, M Pacal, M Ahmad, R Bremner
The role of cyclin-dependent kinase 2 (CDK2) in cancer is controversial. A major hurdle is the availability of tools to easily assess its activity across many samples. Here, we introduce a transcriptional signature to specifically track CDK2 activity. It responds to genetic and chemical perturbations in the CDK-RB-E2F axis, correlates with mitotic rate in vitro and in vivo and reacts rapidly to changes in CDK2 activity during cell cycle progression. We find that CDK2 activity is specifically elevated in human testes, mirroring its critical function in mice, and report very distinct profiles across human cancers...
November 7, 2016: Oncogene
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