Hong-seok Park

BACKGROUND: Chromosome missegregation and the resulting aneuploidy is a common change in neoplasia. The Aurora kinase A (AURKA) gene, which encodes a key regulator of mitosis, is frequently amplified and/or overexpressed in cancer cells, and the level of AURKA amplification is associated with the level of aneuploidy. We examined whether AURKA gene amplification is a biomarker for the detection of bladder cancer. METHODS: The effect of ectopic expression of Aurora kinase A (AURKA) using an adenov

There has been no study reporting on the influence of sleep deprivation on the male reproductive system including sperm quality. In this study, we hypothesized that sleep deprivation could lead to adverse effect on the male reproductive system. The rats were divided into three groups: 1) control (home-cage, n = 10); 2) SD4 (sleep deprivation for 4 days, n = 10); and 3) SD7 (sleep deprivation for 7 days, n = 10). Sleep deprivation was performed by a modified multiple platform method. Sperm qualit

Since vesicoureteral reflux is the common risk factor for acute scintigraphic lesion and ultimate scar formation, voiding cystourethrogram must be considered as an initial study in patients with acute febrile urinary tract infection.

For large proximal ureteral stones, LU can be conducted safely as a first-line procedure without increase of complication rate, compared with conventional URS. Although LU required a prolonged operative time and a longer hospital stay and blood loss was greater, our data showed an advantage of LU in high clearance rate in a single procedure.

Our study showed that the robotic virtual reality simulator (dV-Trainer) can yield sufficient improvement in technical performance in the "Tube 2" task within 4 hours. The simulator improves the technical surgical performance, but the development of more applications to reflect actual surgical situations is needed to improve and maximize the usefulness of the simulator.

BMI, stone diameter, and perinephric edema were independent predictors of SWL outcome and a prediction model based on these parameters will facilitate decision-making for SWL in proximal ureteral stones.

PURPOSE: This study was designed to evaluate the efficacy of medical treatment of Peyronie's disease. MATERIALS AND METHODS: A total of 109 patients with Peyronie's disease who had been treated from January 2011 to December 2014 were retrospectively reviewed in this study. Forty-four patients (Group 1) were treated with 12 mg of potassium para-aminobenzoate daily. Sixty-five patients (Group 2) were treated with combination therapy: tamoxifen (20 mg) and acetyl-L-carnitine (300 mg) twice daily in

This population-based nationwide study revealed an association between metabolic health status and the incidence of prostate cancer, and the risk increased according to the number of components of the metabolic syndrome.

We report two cases of deep tracheal laceration in female patients after balloon dilation for benign tracheobronchial stenosis. Immediate post-procedure bronchoscopy and CT including 3D reconstructions showed deep lacerations in the posterior tracheal wall. Clinically, the patients' dyspnoea subsided and there has been no recurrence during follow-up after balloon dilation. On the follow-up 3D-reconstructed CT scans obtained 2 months and 8 months following balloon dilation, respectively, the lace

We evaluated the prognostic value of BMP-2 expression in prostate cancer tissue via immunohistochemistry in prostate cancer patients. From July 2007 to August 2010, radical prostatectomy specimens from 90 patients with clinically localized prostate cancer (mean age, 62.7 years, mean follow-up 90.4 months) were assessed for BMP-2 expression using immunohistochemistry. We used stepwise multivariate Cox regression models stratified by study to assess the independent effects of the predictive factor

PURPOSE: We assessed whether differences exist in the rates of acute photon defect and scar formation using dimercapto-succinic acid scintigraphy according to the presence and grade of vesicoureteral reflux. MATERIALS AND METHODS: A total of 389 patients with a first febrile urinary tract infection were enrolled. For all patients ultrasonography, dimercapto-succinic acid scintigraphy and voiding cystourethrography were performed. Dimercapto-succinic acid scintigraphy was performed within 5 days