Background: Sporadic clear-cell renal cell carcinoma (ccRCC) is associated with mutations in the VHL gene, upregulated mammalian target of rapamycin (mTOR) activity and glycolytic metabolism. Here, we analyze the effect of VHL mutational status on the expression level of mTOR, eIF4E-BP1, AMPK, REDD1, and PDK3 proteins.
Methods: Total proteins were isolated from 21 tumorous samples with biallelic inactivation, 10 with monoallelic inactivation and 6 tumors with a wild-type VHL (wtVHL) gene obtained from patients who underwent total nephrectomy.
Background: Progression of non-muscle-invasive bladder cancer (NMIBC) to muscle-invasive bladder cancer (MIBC) is life-threatening and cannot be accurately predicted using clinical and pathological risk factors. Biomarkers for stratifying patients to treatment and surveillance are greatly needed.
Objective: To validate a previously developed 12-gene progression score to predict progression to MIBC in a large, multicentre, prospective study.
Purpose: To assess the treatment outcome of pT1a renal tumors, comparing overall survival (OS) in patients treated with radical nephrectomy (RN) and partial nephrectomy (PN), and to examine the rate of utilization of PN in a tertiary institution in Serbia.
Methods: Included were patients treated for pT1a kidney tumors with open RN or open PN during 1996-2013. The inclusion criterion was the pathological tumor stage T1a.
Alterations in von Hippel-Lindau gene (VHL) do not determine deregulation of hypoxia-inducible factors (HIFs) in clear-cell renal carcinoma (ccRCC). Their effects on tuberous sclerosis proteins (TSC1/2) and heat shock protein 90 (Hsp90) expressions in sporadic ccRCC are unknown. Therefore, we analyze the impact of VHL alterations and HIF-α production on the expression of TSC proteins and Hsp90 in these tumors.
View Article and Find Full Text PDFNon-muscle-invasive bladder cancer (NMIBC) is a heterogeneous disease with widely different outcomes. We performed a comprehensive transcriptional analysis of 460 early-stage urothelial carcinomas and showed that NMIBC can be subgrouped into three major classes with basal- and luminal-like characteristics and different clinical outcomes. Large differences in biological processes such as the cell cycle, epithelial-mesenchymal transition, and differentiation were observed.
View Article and Find Full Text PDFIntroduction And Hypothesis: The aim of this study was to cross-culturally adapt and validate the Serbian version of the Australian pelvic floor questionnaire.
Methods: The Australian pelvic floor questionnaire was translated according to the standard method of back-translation. Women who presented with pelvic floor disorders completed the Serbian version of the Australian pelvic floor questionnaire.
Background And Objective: To assess the oncologic and functional outcomes of testicular sparing surgery (TSS) based on a single institution experience.
Methods: Forty-one patients with bilateral and 3 patients with solitary testicle tumors were referred to our institution. The inclusion criteria for TSS were normal serum testosterone levels, and tumor size (<2 cm).
Aim: To compare two different operative techniques for stress urinary incontinence in women, transvaginal tape obturator(TVT-O) and retropubictransvaginal tape(TVT).
Methods: The study included 63 women, of which 32 received TVT-O and 31 were treated with TVT. Follow-up for all patients was done after 1, 3, 6 and 12 months, and yearly thereafter.
Introduction: Primary kidney sarcoma, especially synovial sarcoma (SS), is a very rare neoplasm. Preoperative signs and symptoms are very similar to renal cell carcinoma, therefore, the proper diagnosis is very difficult and usually made after nephrectomy.This is a case report of primary renal SS.
View Article and Find Full Text PDFObjectives: Glutathione S-transferases (GSTs) are a family of enzymes involved in detoxification. Genes encoding for GSTA1, GSTM1, GSTP1, and GSTT1 proteins are polymorphic, which can result in complete or partial loss of enzyme activity. Previous studies have associated polymorphisms of GSTA1, GSTM1, and GSTP1 genes with a higher risk of bladder cancer, but this is still controversial.
View Article and Find Full Text PDFIntroduction: Urinary prostate-specific antigen (uPSA) can be used as additional parameter of benign prostatic hyperplasia (BPH) progression.
Materials And Methods: From January 2001 to December 2011, uPSA was determined in 265 patients with benign prostate. Based on total prostate volume (TPV), the patients with benign prostate were divided in two groups: TPV < 31 mL and TPV ≥ 31 mL.
Background: The circadian system has a major role in maintaining homeostasis and proper body functions including reproductive capacity. The aim of this study was to examine whether there is an association between genetic variability in the primary clock genes CLOCK and ARNTL and male infertility in humans.
Methodology/principal Findings: We performed a case-control study, where we searched for an association between polymorphisms of CLOCK and ARNTL genes and male infertility in 961 Slovenian and Serbian Caucasian men.
Among neuroendocrine tumors of the urinary bladder, small cell carcinoma (SCCB) is the most common one. Less frequent is carcinoid tumour and very rare is a large-cell neuroendocrine carcinoma. Small cell neuroendocrine carcinoma is a very aggressive tumour, with major frequency in the seventh decade.
View Article and Find Full Text PDFPurpose: The aims of this study were to assess health-related quality of life (HRQoL), depression, adverse physical symptoms, and sexual function within Serbian long-term testicular cancer survivors (TCS) and to address cultural specificity.
Methods: This is a cross-sectional study involving 202 TCS, followed up after platinum-based chemotherapy. The HRQoL was measured using the Short Form 36 and the European Organization for Research and Treatment of Cancer Quality of Life questionnaire.
Neural cell adhesion molecule (NCAM) is important for cell migration and it could be expressed in some renal cell carcinoma (RCC). In recent decades, the incidence of RCC has been steadily rising by 2-4% each year. In this study NCAM expression and correlation with nuclear grade in different RCC were analyzed.
View Article and Find Full Text PDFObjective: To evaluate the prognostic factors for survival and disease recurrence in patients treated surgically for upper tract urothelial carcinoma (UTUC), focusing especially on the impact of history of non-muscle-invasive bladder cancer.
Patients And Methods: A single-center series of 221 consecutive patients who were treated surgically for UTUC between January 1999 and December 2010 was evaluated. Patients who had a history of bladder tumor at a higher stage than the upper tract disease, preoperative chemotherapy, or previous contralateral UTUC were excluded.
Introduction/aim: Glycosaminoglycans (GAG) are one of the main constituents of the connective tissue and cellular membrane. Their presence has been evidenced in mucosa and muscular tissue of the urinary bladder of both healthy individuals and those affected by carcinoma. This suggest their potential role in the onset of bladder carcinoma and follow-up of those patients.
View Article and Find Full Text PDFThe aim of the study was to correlate the preoperative activity of Th1 and Th17 cytokine axes with the development of sepsis after radical cystectomy. The study involved twenty patients with the infiltrative transitional cell carcinoma of the urinary bladder without previous radiotherapy/chemotherapy, who underwent open radical cystectomy with urinary diversion. Preoperative plasma concentrations of Th1 cytokines interleukin 12 (IL-12) and interferon gamma (IFN-γ), and Th17 cytokines IL-23 and IL-17, were measured using ELISA.
View Article and Find Full Text PDFBalkan endemic nephropathy (BEN) is interesting renal disease, because of its unique clinical, epidemiological and morphological characteristics: intensive interstitial fibrosis and tubular atrophy without any inflammation. In the present paper we evaluate the incidence of BEN from the morphological point of view for the last decade. Therefore we analyzed material obtained from autopsies, kidney biopsies and nephrectomy due to upper urothelial cancer (UUC) from the patients which were divided into two groups: those with permanent residence in BEN areas and those from nonendemic areas.
View Article and Find Full Text PDFWegener's granulomatosis (WG) is a systemic disorder characterized by necrotizing vasculitis involving the respiratory tract, and in most cases, the kidneys. The most common manifestation of WG in the kidneys is segmental necrotizing glomerulonephritis. The presence of a renal mass as a manifestation of WG is rare.
View Article and Find Full Text PDFObjective: To identify the impact of tumour location on the disease recurrence and survival of patients who were treated surgically for upper urinary tract transitional cell carcinoma (UUT-TCC).
Patients And Methods: A single-centre series of 189 consecutive patients who were treated surgically for UUT-TCC between January 1999 and December 2009 was evaluated. Patients who had previously undergone radical cystectomy, preoperative chemotherapy or contralateral UUT-TCC were excluded.
Unlabelled: The aim of this study is to evaluate the results and complications after radical cystectomy due to carcinoma of the bladder and to point out the significance of post-operative physical treatment and rehabilitation of these patients.
Material And Method: In the period of 3 years (2007-2010), at the Urological Clinic in Belgrade, we performed 195 total cystectomies for invasive bladder carcinoma with the use of different types of urinary diversion. The operation was performed in 162 men (83%) and 33 women (17%).
Objective: To identify independent risk factors for the development of bladder cancer after surgical management of upper urinary tract transitional cell carcinoma (UUT-TCC).
Patients And Methods: Between January 1999 and December 2008, 154 patients were treated surgically for UUT-TCC at the Clinic of Urology, Clinical Center of Serbia. Patients with a previous history of bladder cancer and patients with concomitant bladder cancer were excluded from the study.
Unlabelled: Pax-2 transcriptional factor is expressed during kidney development and could re-express in renal tumors. The aim of this study was to examine Pax-2 expression in different types of renal cell carcinoma (RCC) in order to see whether it is good immunohistochemical marker.
Method: We analyzed 48 different renal tumours stained with Pax-2 antibody.