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https://www.readbyqxmd.com/read/28315974/inherited-dna-repair-gene-mutations-detected-by-tumor-next-generation-sequencing-in-urinary-tract-cancers
#1
Sumati Gupta, Samantha Greenberg, Jade Grimmett, David Gaston, Neeraj Agarwal, William Lowrance, Joshua Schiffman, Wendy Kohlmann
Interpretation of next-generation sequencing (NGS) of tumor tissue in patients with advanced Urinary Tract Cancer (UTC) is performed to guide treatment selection but may reveal pathogenic variants with germline implications. We identified three patients with UTC with unexpected germline DNA repair gene mutations. Specific testing for these was prompted by the detection of these mutations by tumor NGS. All three patients were nonsmokers with a strong family history of cancer. Two patients had upper tract UTC with age at diagnosis in the 40 s...
March 18, 2017: Familial Cancer
https://www.readbyqxmd.com/read/28314541/risk-of-subsequent-primary-kidney-cancer-after-another-malignancy-a-population-based-study
#2
Omar Abdel-Rahman
BACKGROUND: Population-based data on the development of kidney cancer as a second malignant neoplasm following the diagnosis of other common malignancies are rare. This clinical scenario has been evaluated within the Surveillance, Epidemiology, and End Results (SEER) database. MATERIALS AND METHODS: The SEER-9 database (1973-2013) was queried using the SEER*Stat program to determine the standardized incidence ratios (SIRs) of kidney cancer development following each one of 10 common invasive malignancies (colorectal, breast, prostate, lung, thyroid, corpus uteri, urinary bladder, kidney/renal pelvis, cutaneous melanoma, and non-Hodgkin lymphoma)...
February 27, 2017: Clinical Genitourinary Cancer
https://www.readbyqxmd.com/read/28297289/a-dosimetric-evaluation-of-knowledge-based-vmat-planning-with-simultaneous-integrated-boosting-for-rectal-cancer-patients
#3
Hao Wu, Fan Jiang, Haizhen Yue, Sha Li, Yibao Zhang
RapidPlan, a commercial knowledge-based optimizer, has been tested on head and neck, lung, esophageal, breast, liver, and prostate cancer patients. To appraise its performance on VMAT planning with simultaneous integrated boosting (SIB) for rectal cancer, this study configured a DVH (dose-volume histogram) estimation model consisting 80 best-effort manual cases of this type. Using the model- generated objectives, the MLC (multileaf collimator) sequences of other 70 clinically approved plans were reoptimized, while the remaining parameters, such as field geometry and photon energy, were maintained...
November 2016: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28291404/outcomes-and-effectiveness-of-posterior-occipitocervical-fusion-for-suboccipital-spinal-metastases
#4
Panya Luksanapruksa, Jacob M Buchowski, Neill M Wright, Frank H Valone, Colleen Peters, David B Bumpass
OBJECTIVE The incidence of suboccipital spinal metastases is rare but has increased given cancer patients' longer life expectancies. Operative treatment in this region is often challenging because of limited fixation points due to tumor lysis, as well as adjacent neural and vascular anatomy. Few studies have reported on this population of cancer patients. The purpose of this study was to evaluate clinical outcomes and complications of patients with suboccipital spinal metastases who had undergone posterior occipitocervical fixation...
February 24, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28288658/prostate-cancer-treated-with-brachytherapy-an-exploratory-study-of-dose-dependent-biomarkers-and-quality-of-life
#5
Sarah O S Osman, Simon Horn, Darren Brady, Stephen J McMahon, Ahamed B Mohamed Yoosuf, Darren Mitchell, Karen Crowther, Ciara A Lyons, Alan R Hounsell, Kevin M Prise, Conor K McGarry, Suneil Jain, Joe M O'Sullivan
BACKGROUND: Low-dose-rate permanent prostate brachytherapy (PPB) is an attractive treatment option for patients with localised prostate cancer with excellent outcomes. As standard CT-based post-implant dosimetry often correlates poorly with late treatment-related toxicity, this exploratory (proof of concept) study was conducted to investigate correlations between radiation - induced DNA damage biomarker levels, and acute and late bowel, urinary, and sexual toxicity. METHODS: Twelve patients treated with (125)I PPB monotherapy (145Gy) for prostate cancer were included in this prospective study...
March 14, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28288548/upregulated-glutathione-transferase-omega-1-correlates-with-progression-of-urinary-bladder-carcinoma
#6
Tatjana Djukic, Tatjana Simic, Marija Pljesa-Ercegovac, Marija Matic, Sonja Suvakov, Vesna Coric, Dejan Dragicevic, Ana Savic-Radojevic
OBJECTIVES: Newly discovered glutathione transferase omega 1 (GSTO1-1) plays an important role in the glutathionylation cycle, a significant mechanism of protein function regulation. GSTO1-1 expression pattern has not been studied in transitional cell carcinoma (TCC), as yet. METHODS: A total of 56 TCC tumor and corresponding non-tumor specimens were investigated. Glutathione content and thioltransferase activity were measured spectrophotometrically. Protein-glutathione mixed disulfides were measured fluorimetrically...
March 13, 2017: Redox Report: Communications in Free Radical Research
https://www.readbyqxmd.com/read/28287737/large-scale-srm-screen-of-urothelial-bladder-cancer-candidate-biomarkers-in-urine
#7
Elodie Duriez, Christophe D Masselon, Cédric Mesmin, Magali Court, Kevin Demeure, Yves Allory, Nuria Malats, Mariette Matondo, François Radvanyi, Jérôme Garin, Bruno Domon
Urothelial bladder cancer is a condition associated with high recurrence and substantial morbidity and mortality. Non-invasive urinary tests that would detect bladder cancer and tumor recurrence are required to significantly improve patient care. Over the last decade, numerous bladder cancer candidate biomarkers have been identified in the context of extensive proteomics or transcriptomics studies. To translate these findings in clinically useful biomarkers, the systematic evaluation of these candidates remains the bottleneck...
March 13, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/28285559/identification-and-validation-of-gene-expression-patterns-in-cystitis-glandularis-patients-and-controls
#8
Chen-Long Chu, Chen-Hui Zhao, Zhi-Wei Zhang, Ming-Wei Wang, Zhao-Hui Zhang, An-Qing Yang, Bin-Bin Ma, Cai-Feng Lu, Min Wu, Mei-Zhen Gu, Ren-Jie Cui, Zhi-Xiang Xin, Tao Huang, Wen-Long Zhou
Our aim was to investigate differences in gene expression in bladder tissues between cystitis glandularis (CG) patients and healthy controls. Subsequent RNA was isolated from urinary bladder samples from CG patients and healthy controls, followed by RNA sequencing analysis. There were 4263 differentially expressed genes in urinary bladder between CG patients and controls, and 8 genes were verified with real-time PCR, Western blot, and enzyme-linked immunosorbent assay (ELISA) analysis. Gene set enrichment analysis (GSEA) revealed that 25 signaling pathways were upregulated in CG patients, and 17 signaling pathways were found upregulated in healthy controls...
January 1, 2017: SLAS Discov
https://www.readbyqxmd.com/read/28285503/development-of-urinary-bladder-pre-neoplasia-by-schistosoma-haematobium-eggs-and-chemical-carcinogen-in-mice
#9
Bayissa Chala, Min-Ho Choi, Kyung Chul Moon, Hyung Suk Kim, Cheol Kwak, Sung-Tae Hong
Schistosoma haematobium is a biocarcinogen of human urinary bladder (UB). The present study investigated developing UB cancer mouse model by injecting S. haematobium eggs into the bladder wall and introduction of chemical carcinogens. Histopathological findings showed mild hyperplasia to epithelial vacuolar change, and high grade dysplasia. Squamous metaplasia was observed in the S. haematobium eggs+NDMA group at week 12 but not in other groups. Immunohistochemistry revealed significantly high expression of Ki-67 in urothelial epithelial cells of the S...
February 2017: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/28275521/transurethral-resection-versus-open-bladder-cuff-excision-in-patients-undergoing-nephroureterectomy-for-upper-urinary-tract-carcinoma-operative-and-oncological-results
#10
Charalampos Fragkoulis, Athanasios Pappas, Georgios I Papadopoulos, Georgios Stathouros, Aristodimos Fragkoulis, Konstantinos Ntoumas
OBJECTIVES: To evaluate the impact of distal ureter management on oncological results after open nephroureterectomy (ONU) comparing transurethral resection of the intramural ureter to conventional open excision, as controversy still exists about the method of choice for managing the distal ureter and bladder cuff during ONU. PATIENTS AND METHODS: We retrospectively collected data from 378 patients who underwent ONU for upper urinary tract transitional cell carcinoma (UUT-TCC) from 1988 to 2009...
March 2017: Arab Journal of Urology
https://www.readbyqxmd.com/read/28270596/cigarette-smoke-induced-urothelial-cell-damage-potential-role-of-platelet-activating-factor
#11
Shannon E Kispert, John Marentette, E Cristian Campian, T Scott Isbell, Hannah Kuenzel, Jane McHowat
Cigarette smoking is an environmental risk factor associated with a variety of pathologies including cardiovascular disease, inflammation, and cancer development. Interstitial cystitis/bladder pain syndrome (IC/BPS) is a chronic inflammatory bladder disease with multiple etiological contributors and risk factors associated with its development, including cigarette smoking. Previously, we determined that cigarette smoking was associated with bladder wall accumulation of platelet activating factor (PAF), a potent inflammatory mediator that facilitates transendothelial cell migration of inflammatory cells from the circulation...
March 2017: Physiological Reports
https://www.readbyqxmd.com/read/28267055/overactive-bladder-syndrome-and-lower-urinary-tract-symptoms-after-prostate-cancer-treatment
#12
Suzanne Biers, Karl-Dietrich Sievert, Nikesh Thiruchelvam
PURPOSE OF REVIEW: To assess the contemporary literature on the prevalence, cause and management of lower urinary tract symptoms (LUTS) and bladder overactivity following treatment of prostate cancer with radical surgery, radiotherapy and minimally invasive therapies for localized prostate cancer, including cryotherapy and high-intensity focused ultrasound (HIFU). RECENT FINDINGS: Generally, the highest risk of urinary incontinence is after open radical prostatectomy (7-40%), although not all contemporary studies demonstrate a difference between open and laparoscopic techniques...
March 4, 2017: Current Opinion in Urology
https://www.readbyqxmd.com/read/28263974/histone-demethylase-jmjd1a-promotes-urinary-bladder-cancer-progression-by-enhancing-glycolysis-through-coactivation-of-hypoxia-inducible-factor-1%C3%AE
#13
W Wan, K Peng, M Li, L Qin, Z Tong, J Yan, B Shen, C Yu
High aerobic glycolysis not only provides energy to cancer cells, but also supports their anabolic growth. JMJD1A, a histone demethylase that specifically demethylates H3K9me1/2, is overexpressed in multiple cancers, including urinary bladder cancer (UBC). It is unclear whether JMJD1A could promote cancer cell growth through enhancing glycolysis. In this study, we found that downregulation of JMJD1A decreased UBC cell proliferation, colony formation and xenograft tumor growth. Knockdown of JMJD1A inhibited glycolysis by decreasing the expression of genes participated in glucose metabolism, including GLUT1, HK2, PGK1, PGM, LDHA and MCT4...
March 6, 2017: Oncogene
https://www.readbyqxmd.com/read/28263126/fluorescence-in-situ-hybridization-fish-in-the-diagnosis-of-bladder-and-upper-tract-urothelial-carcinoma-the-largest-single-institution-experience-to-date
#14
Leonard G Gomella, Mark J Mann, Ryan C Cleary, Scott G Hubosky, Demetrius H Bagley, Adeep B Thumar, Peter A McCue, Costas D Lallas, Edouard J Trabulsi
INTRODUCTION: We evaluated the UroVysion (Abbott Molecular, IL, USA) fluorescence in situ hybridization (FISH) assay for the diagnosis of urothelial cancer in patients diagnosed with or suspected to have bladder, upper tract urothelial carcinoma (UTUC), and combined upper and lower tract urothelial carcinoma (BC). MATERIALS AND METHODS: A single institution retrospective analysis comparing sensitivity, specificity, positive predictive value, and negative predictive values for FISH and urinary cytology...
February 2017: Canadian Journal of Urology
https://www.readbyqxmd.com/read/28262536/challenges-in-salvaging-urinary-continence-following-failed-bladder-exstrophy-repair-in-a-developing-country
#15
Moneer K Hanna, Ibrahim Bassiouny
INTRODUCTION: The management of urinary incontinence following failed bladder exstrophy repairs is not well defined, some surgeons recommend urinary diversion, others would pursue reconstructive surgery. OBJECTIVE: Herein we review our experience with various strategies for management of urinary incontinence and their outcome in 61 patients born with bladder exstrophy who failed their initial repairs. We also examine the impact of diverse factors in making the surgical decision for patients with limited resources in a developing country...
January 29, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/28260135/efficacy-of-an-additional-flap-operation-in-bladder-preserving-surgery-with-radical-prostatectomy-and-cystourethral-anastomosis-for-rectal-cancer-involving-the-prostate
#16
Keita Noguchi, Yuji Nishizawa, Yoshinobu Komai, Yasuyuki Sakai, Akihiro Kobayasi, Masaaki Ito, Norio Saito
PURPOSE: Sphincter-preserving operations performed with bladder-preserving surgery and a cystourethral anastomosis (CUA) do not require a urinary stoma, but leakage from the CUA may develop. The aim of this study was to evaluate the efficacy of performing an additional flap operation. METHODS: The subjects were 39 patients who underwent bladder-preserving surgery for advanced rectal cancer involving the prostate, between 2001 and 2015.32 of whom had a CUA and one of whom had a neobladder...
March 4, 2017: Surgery Today
https://www.readbyqxmd.com/read/28259945/rb-deficiency-accelerates-progression-of-carcinoma-of-the-urinary-bladder-in-vivo-and-in-vitro-through-inhibiting-autophagy-and-apoptosis
#17
Cheng-Yuan Wang, Zhi-Bin Xu, Jiang-Ping Wang, Yong Jiao, Bo Zhang
Urinary bladder cancer is known as a common cancer diagnosed across the world and results in significant mortality and morbidity rates among patients. The retinoblastoma (Rb) protein, as a main tumor suppressor, controls cellular responses to potentially oncogenic stimulation. Rb phosphorylation could disrupt E2F complex formation, resulting in diverse transcription factor dysfunction. In our study, we investigated how Rb is involved in controlling urinary bladder cancer progression. The results indicate that Rb expression is reduced in mice with urinary bladder tumor, and its suppression leads to urinary bladder cancer progression in vivo and in vitro...
February 22, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28256904/utility-of-early-dynamic-and-delayed-post-diuretic-18-f-fdg-pet-ct-suvmax-in-predicting-tumour-grade-and-t-stage-of-urinary-bladder-carcinoma-results-from-a-prospective-single-centre-study
#18
Abhishek Sharma, Uttam K Mete, Ashwani Sood, Nandita Kakkar, Arun K R Gorla, Bhagwant R Mittal
OBJECTIVE: Accurate pre-treatment grading and staging of bladder cancer are vital for better therapeutic decision and prognosis. The aim of the present study was to evaluate the correlation between maximum standardized uptake value (SUVmax) calculated during early dynamic and post-diuretic fluorine-18 fludeoxyglucose ((18)F-FDG) positron emission tomography (PET)/CT studies with grade and pT-stage of bladder cancer. METHODS: 39 patients with suspected/proven bladder carcinoma underwent 10-min early dynamic pelvic imaging and delayed post-diuretic whole-body FDG PET/CT imaging...
April 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28256480/multiple-primary-cancers-simultaneously-occurring-prostate-cancer-and-other-primary-tumors-our-experience-and-literature-search
#19
A A Popoola, O O Abiola, T Buhari, A F Ushie, H B Olanipekun, A K Arogundade
INTRODUCTION: Prostate cancer is a leading cause of death in men all over the world, and it is becoming an increasing public health burden in sub-Saharan Africa. In our practice, we identified that prostate cancer co-existed with other primary cancers even in noncontiguous regions of the body and this co-existence impacted on our management of these patients. MATERIALS AND METHODS: We retrospectively studied a 2-year period (June 2012-July 2014), the records of patients in our hospital with prostate cancer, who in addition, had other primary cancers; and studied the management and outcomes of these patients...
March 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/28248058/-robot-assisted-cystprostatectomy-for-urinary-bladder-cancer-the-first-experience
#20
S V Yarmoshchuk, A S Kudryavtsev, A A Zeravin, E A Drobyazgin, A N Arkhipov
The article reports a case of a robot-assisted cystprostatectomy in a 36 y.o. patient with a malignant bladder neoplasm (highly differentiated infiltrative urothelial bladder cancer, Gr 2, invading the bladder wall mucosa, the multicentric growth type, with the focal tumor growth in the urethral mucosa and prostate). The ileal neobladder was constructed using intracorporeal access. Operating time was 6 hours, intraoperative blood loss was 150 ml. There was no intra - or postoperative complications. Voiding function was restored at day 10 postoperatively...
December 2016: Urologii︠a︡
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