Search results for "Urinary bladder neoplasms"
showing 10 items of 144 documents
Epidemiology of Disease Conditions in Italy. Has Anything Changed? Environment, Professional Exposure, and Lifestyle. Is Time for Screening?
2013
Risk factors analysis in bladder cancer should consider not only the clinical and pathological features of the tumor but also environmental and lifestyle factors. They may play, in fact, a relevant role not only in the pathogenesis but also in the biological behavior of the tumor. The association between cigarette smoking and bladder cancer has been consistently confirmed in several case-control and cohort studies. The risk of bladder cancer seems to increase with duration and intensity of smoking. Another environmental risk factor, although not definitively proved, is water supply. Chlorination or water pollution by pesticides and other chemical factors is considered a relevant risk facto…
Validation of Neutrophil-to-lymphocyte Ratio in a Multi-institutional Cohort of Patients With T1G3 Non–muscle-invasive Bladder Cancer
2018
The aim of this multicenter study was to investigate the prognostic role of neutrophil-to-lymphocyte ratio (NLR) and to validate the NLR cutoff of 3 in a large multi-institutional cohort of patients with primary T1 HG/G3 non-muscle-invasive bladder cancer (NMIBC).
LOCAL MICROWAVE HYPERTHERMIA AND INTRAVESICAL CHEMOTHERAPY AS BLADDER SPARING TREATMENT FOR SELECT MULTIFOCAL AND UNRESECTABLE SUPERFICIAL BLADDER TU…
1998
Purpose: The role of a combined regimen of local hyperthermia and topical chemotherapy in patients with multifocal and recurrent superficial bladder tumors not curable by transurethral resection was evaluated in a neodjuvant organ sparing clinical study. Materials and Methods: A total of 19 patients with multifocal, superficial grades 1 to 3 bladder tumors that recurred after intravesical chemoprophylaxis or immunoprophylaxis underwent local combined administration of microwave induced hyperthermia and intravesical chemotherapy as a debulking approach. Due to extensive superficial involvement of the bladder walls complete transurethral resection of all tumors seemed technically unfeasible i…
Keyhole limpet hemocyanin (KLH): a biomedical review
1999
In this review we present a broad survey of fundamental scientific and medically applied studies on keyhole limpet hemocyanin (KLH). Commencing with the biochemistry of KLH, information on the biosynthesis and biological role of this copper-containing respiratory protein in the marine gastropod Megathura crenulata is provided. The established methods for the purification of the two isoforms of KLH (KLH1 and KLH2) are then covered, followed by detailed accounts of the molecular mass determination, functional unit (FU) structure, carbohydrate content, immunological analysis and recent aspects of the molecular genetics of KLH. The transmission electron microscope (TEM) has contributed signific…
Induction of cholesterol biosynthesis by archazolid B in T24 bladder cancer cells.
2014
Abstract Background Resistance of cancer cells towards chemotherapeutics represents a major cause of therapy failure. The objective of our study was to evaluate cellular defense strategies in response to the novel vacuolar H+-ATPase inhibitor, archazolid B. Experimental approach: The effects of archazolid B on T24 bladder carcinoma cells were investigated by combining “omics” technologies (transcriptomics (mRNA and miRNA) and proteomics). Free cholesterol distribution was determined by filipin staining using flow cytometry and fluorescence microscopy. Flow cytometry was performed for LDLR surface expression studies. Uptake of LDL cholesterol was visualized by confocal microscopy. SREBP acti…
Role of Neutral Amino Acid Transport and Protein Breakdown for Substrate Supply of Nitric Oxide Synthase in Human Endothelial Cells
2003
Endothelial dysfunction is often associated with a relative substrate deficiency of the endothelial nitric oxide synthase (eNOS) in spite of apparently high intracellular arginine concentrations. For a better understanding of the underlying pathophysiological mechanisms, we aimed to characterize the intracellular arginine sources of eNOS. Our previous studies in human endothelial EA.hy926 cells suggested the existence of two arginine pools: pool I can be depleted by extracellular lysine, whereas pool II is not freely exchangeable with the extracellular space, but accessible to eNOS. In this study, we demonstrate that the eNOS accessible pool II is also present in human umbilical vein endoth…
Podoplanin serum and urine concentration in transitional bladder cancer
2016
Background Podoplanin (PDP) is a mucin - a type of transmembrane protein expressed in numerous tissues during ontogeny and in adult animals, including the brain, heart, kidney, osteoblasts and lymphoid organs. Objective The aim of this study was to determine podoplanin concentration in the blood serum and urine of patients with bladder cancer. Quantifying podoplanin concentration and its correlation with various clinicopathological parameters may be useful for more accurate predictions and identifying high-risk patients. Methods The present study included 82 patients with bladder cancer confirmed by transurethral resection or cystectomy and 27 healthy volunteers. The Surface Plasmon Resonan…
Gemcitabine in intravesical treatment of Ta-T1 transitional cell carcinoma of the bladder: Phase I-II study on marker lesions
2004
Abstract Objectives To study the ablative activity of intravesical gemcitabine against superficial transitional cell carcinoma of the bladder at different doses and concentrations. Methods A total of 27 patients were treated with intravesical gemcitabine after transurethral resection during which one to three papillary marker lesions were left unresected. Starting 14 days after transurethral resection, six instillations of gemcitabine were given at weekly intervals. Gemcitabine, diluted in 50 mL of saline solution and maintained for 2 hours, was given at the dose of 500 mg, 1000 mg, and 2000 mg in groups of 9 patients each. A complete response (CR) was defined as negative cytology, cystosco…
Vinflunine in Metastatic Urothelial Carcinoma of the Bladder in Progression after a Platinum-Containing Regimen
2019
<b><i>Background:</i></b> Vinflunine is a microtubule inhibitor of the vinca alkaloid class approved for the treatment of urothelial bladder carcinoma after a platinum-containing regimen. <b><i>Methods:</i></b> To evaluate the effectiveness of vinflunine, we enrolled 80 subjects with a histologically confirmed diagnosis of metastatic urothelial bladder carcinoma that had previously undergone chemotherapy with a platinum-containing regimen and had measurable lesions according to the Response Evaluation Criteria in Solid Tumors (RECIST). The patients (<i>n</i> = 80) received vinflunine (Javlor®) every 3 weeks at 320 mg/m<sup>2&…
Analysis of Heritability and Shared Heritability Based on Genome-Wide Association Studies for Thirteen Cancer Types
2015
BACKGROUND: Studies of related individuals have consistently demonstrated notable familial aggregation of cancer. We aim to estimate the heritability and genetic correlation attributable to the additive effects of common single-nucleotide polymorphisms (SNPs) for cancer at 13 anatomical sites.METHODS: Between 2007 and 2014, the US National Cancer Institute has generated data from genome-wide association studies (GWAS) for 49 492 cancer case patients and 34 131 control patients. We apply novel mixed model methodology (GCTA) to this GWAS data to estimate the heritability of individual cancers, as well as the proportion of heritability attributable to cigarette smoking in smoking-related cance…