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Yoon BI, Bae WJ, Kim SJ, Kim HS, Ha US, Sohn DW, Hwang SY, Kim SW. The Anti-Inflammatory Effects of a New Herbal Formula (WSY-1075) in a Nonbacterial Prostatitis Rat Model. World J Mens Health 2013; 31:150-6. [PMID: 24044110 PMCID: PMC3770850 DOI: 10.5534/wjmh.2013.31.2.150] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2013] [Revised: 07/16/2013] [Accepted: 07/17/2013] [Indexed: 11/16/2022] Open
Abstract
PURPOSE The aim of this study was to investigate the anti-inflammatory effects of a new herbal formula (WSY-1075) in a nonbacterial prostatitis rat model. MATERIALS AND METHODS Prostatitis was induced in male Wistar rats (n=32) by treatment with 17 beta-estradiol and dihydrotestosterone for 4 weeks. After the induction of prostatitis, the rats were randomly divided into one of four treatment groups: control (n=8), ciprofloxacin (n=8), WSY-1075 (100 mg/kg) (n=8), and WSY-1075 (400 mg/kg) (n=8). After 4 weeks of treatment, the prostatic proinflammatory cytokine (tumor necrosis factor-α, interleukin [IL]-6, and IL-8) levels and histological findings were noted. RESULTS The ciprofloxacin and WSY-1075 treatment groups showed significantly decreased proinflammatory cytokine levels compared with the control group. Histologically, treatment with ciprofloxacin and WSY-1075 significantly suppressed the severity of prostatitis lesions compared with those in the control group. No differences in the proinflammatory cytokine levels or histologic findings were observed with the dose dependent treatment of WSY-1075. CONCLUSIONS The new herbal formula, WSY-1075, showed effective anti-inflammatory activities in the prostate and may be useful for the clinical treatment of nonbacterial prostatitis. Our findings suggest that WSY-1075 has a beneficial effect on the prevention and treatment of nonbacterial prostatitis.
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Yoon BI, Han DS, Ha US, Lee SJ, Sohn DW, Kim HW, Han CH, Cho YH. Clinical courses following acute bacterial prostatitis. Prostate Int 2013; 1:89-93. [PMID: 24223408 PMCID: PMC3814117 DOI: 10.12954/pi.12013] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2012] [Accepted: 05/15/2013] [Indexed: 11/13/2022] Open
Abstract
Purpose: There are few studies about clinical courses following acute bacterial prostatitis (ABP). We evaluated the progression rates of chronic bacterial prostatitis (CBP) and inflammatory chronic pelvic pain syndrome (CPPS) after ABP treatment. Also evaluated the characteristics of the patients who developed CBP and inflammatory CPPS after ABP treatment. Methods: Total 437 patients compatible with a confirmed diagnosis of ABP from 5 urological centers between 2001 and 2010 were enrolled to study. We defined chronic infection (CI) as a progression to CBP and inflammatory CPPS after treatment of ABP in admission periods when followed up at 3 months or more. Results were analyzed between two groups: recovered without CI (group A, n=385) and developed to CI (group B, n=52). Results: Of the 437 ABP patients, 1.3% (6/437) progressed to CBP and 10.5% (46/437) progressed to inflammatory CPPS. The progression rate of CI was 11.8% (52/437). The patients who developed to CI were higher in alcohol consumption rate, diabetes, voiding symptoms, prior manipulation rate, enlarged prostate volume, catheterization history rate and short duration of antibiotic treatment (P<0.05). Conclusions: The identification and characterization of these factors may accelerate the development of preventive, diagnostic and therapeutic strategies for the treatment of CI from ABP.
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Kim SD, Kim SW, Yoon BI, Ha US, Kim SW, Cho YH, Sohn DW. The Relationship between Clinical Symptoms and Urine Culture in Adult Patients with Acute Epididymitis. World J Mens Health 2013; 31:53-7. [PMID: 23658866 PMCID: PMC3640153 DOI: 10.5534/wjmh.2013.31.1.53] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2012] [Revised: 02/04/2013] [Accepted: 02/04/2013] [Indexed: 11/25/2022] Open
Abstract
Purpose We evaluated adult patients with acute epididymitis to identify the frequency of actual sexual contacts and the causative organism, and compared clinical examinations, degrees of manifested symptoms, and radiological test results. Materials and Methods We reviewed the medical records of 65 patients older than 18 years presenting with acute epididymitis who had been treated between 2002 and 2011. Scrotal ultrasonography, urinalysis, and urine culture were performed to diagnose the acute epididymitis. Patients were divided into negative (n=45) and positive (n=20) urine culture groups. Then the latter groups were subdivided into a sexually transmitted organism (STO) culture group (n=13) and a non-STO (n=7) culture group. Data on any history of sexual contact, scrotal pain and tenderness, symptoms of urethritis (discharge, dysuria, urethral burning, or irritation), and lower urinary tract symptoms (dysuria, frequency, and urgency of urination) were obtained from all of the subjects. Results Patients in the positive urine culture group were significantly younger than those in the other group (p=0.224) and were more likely to have a history of sexual contact at least two weeks prior to onset of epididymitis (p=0.012). They had also a significantly enlarged epididymal head and significantly more severe complaints of pain or tenderness than those of latter group (p=0.348, p=0.288). However, the difference in these measures between the STO and non-STO group was not significant, except in the case of age (p=0.044). Conclusions Patients of the positive urine culture group with acute epididymitis were significantly younger and more sexually active than the others. They also had severe pain or tenderness and an enlarged epididymal head. There was a close association between clinical symptoms, a positive urine culture, and ultrasonographic findings.
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Kim SW, Kim SH, Bae WJ, Hong CG, Ha US, Sohn DW, Cho YH, Yoon BI. 1060 CLINICAL AND MICROBIOLOGICAL CHARACTERISTICS OF WOMEN WITH RECURRENT UNCOMPLICATED CYSTITIS. J Urol 2013. [DOI: 10.1016/j.juro.2013.02.646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Lee JH, Kim SW, Yoon BI, Ha US, Sohn DW, Cho YH. Factors that affect nosocomial catheter-associated urinary tract infection in intensive care units: 2-year experience at a single center. Korean J Urol 2013; 54:59-65. [PMID: 23362450 PMCID: PMC3556556 DOI: 10.4111/kju.2013.54.1.59] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2012] [Accepted: 10/20/2012] [Indexed: 11/18/2022] Open
Abstract
PURPOSE This study took a retrospective approach to investigate patients with catheter-associated urinary tract infection (CAUTI) over 2 years at a single hospital's intensive care unit (ICU) to identify meaningful risk factors and causative organisms. MATERIALS AND METHODS A retrograde analysis was performed on patients with indwelling catheters between January 2009 and December 2010 in Yeouido St. Mary Hospital medical and surgical ICU. CAUTI was defined as isolated bacterial growth of 100,000 colony-forming units or more either 48 hours after transfer to the ICU if a urinary catheter was placed before the transfer or 48 hours after insertion if the catheter was inserted in the ICU. Only the patients whose culture results were negative before ICU admission were included. RESULTS There were a total of 1,315 patients with indwelling urinary catheters in our hospital's medical and surgical ICU between January 2009 and December 2010. Of these patients, 241 had positive urine culture results, and 61 had CAUTI. Using multivariate logistic regression analysis, those with diabetes were 4.55 (p<0.001) times as likely to have occurrences of CAUTI than were those without and also had a 1.10-fold (p<0.01) longer duration of an indwelling catheter. Upon urine culture, among the 61 patients with CAUTI, Escherichia coli was the most common bacterium grown; it was identified in 24 patients (38.7%). CONCLUSIONS The factors and causative organisms contributing to the development of CAUTI in the management of ICU patients must be considered to prevent the occurrence of UTIs in this setting.
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Yoon BI, Kim SW, Ha US, Sohn DW, Cho YH. Risk factors for recurrent cystitis following acute cystitis in female patients. J Infect Chemother 2013; 19:727-31. [DOI: 10.1007/s10156-013-0556-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2012] [Accepted: 01/08/2013] [Indexed: 11/28/2022]
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Hong CG, Yoon BI, Choe HS, Ha US, Sohn DW, Cho YH. The Prevalence and Characteristic Differences in Prostatic Calcification between Health Promotion Center and Urology Department Outpatients. Korean J Urol 2012; 53:330-4. [PMID: 22670192 PMCID: PMC3364472 DOI: 10.4111/kju.2012.53.5.330] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2012] [Accepted: 04/05/2012] [Indexed: 11/18/2022] Open
Abstract
PURPOSE We evaluated the differences in calculi characteristics and their prevalence according to the presence of lower urinary tract symptoms between adult patients examined at the Urology Department and those examined at the Health Promotion Center (HPC). MATERIALS AND METHODS The prevalence of prostatic calcification, characteristics of calculi (number, size, and location), and differences in lower urinary tract symptoms were compared and analyzed for 479 subjects who underwent transrectal ultrasonography at the HPC and the Urology Outpatients Department at our hospital from October 2009 to October 2010. RESULTS Of 479 subjects, 268 patients were examined at the HPC, and 211 were examined at the Urology Outpatients Department. Between the two groups, age, prostate-specific antigen levels, prostate volume transrectal ultrasonography, International Prostate Symptom Score (total, voiding, and storage), quality of life, and the prostatic calcification rate were significantly higher in the patients who visited the Urology Outpatients Department. The prevalence of prostatic calcification was 41.5% (199/479), with 36.1% (97/268) from the HPC and 48.3% (102/211) from the Urology Outpatients Department. When the characteristics of prostatic calcification were compared, there were no significant differences in the appearance, size, or location of the calculi between the two groups. CONCLUSIONS The prevalence of prostatic calcification was high in patients complaining of lower urinary tract symptoms; however, there were no significant differences in the characteristics of the calculi. This finding leads us to believe that prostatic calcification can aggravate lower urinary tract symptoms but does not result in differences according to the number, size, or appearance of the calculi.
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Lee SH, Chung BH, Kim CS, Lee HM, Kim CI, Yoo TK, Lee KS, Park KS, Byun SS, Yoon BI, Kim SW, Lee JY. Survey on benign prostatic hyperplasia distribution and treatment patterns for men with lower urinary tract symptoms visiting urologists at general hospitals in Korea: a prospective, noncontrolled, observational cohort study. Urology 2012; 79:1379-84. [PMID: 22503769 DOI: 10.1016/j.urology.2012.02.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2011] [Revised: 01/30/2012] [Accepted: 02/07/2012] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To survey cases of benign prostatic hyperplasia (BPH) among patients visiting urologists with lower urinary tract symptoms (LUTS) at general hospitals in Korea and to investigate treatment outcomes in current clinical practice. METHODS This was a multicenter, prospective study conducted in 18 urology centers in Korea. The symptoms of BPH were observed via the International Prostate Symptoms Score (IPSS), transrectal ultrasonography, uroflometry, prostate, specific, antigen, PSA) and postvoid residual volume at the baseline, 1 week, 4 weeks, 12 weeks, 24 weeks, and 52 weeks after initial evaluation. The patients were divided into three groups according to age (group I: 50-59; group II: 60-69; group III: 70 years or older). RESULTS Of the 1054 screened men, 966 were enrolled and 917 were diagnosed with BPH. Total IPSS and storage subscores were significantly higher in group III than in group II or I. By month 12, significant improvements on total IPSS and voiding subscores were demonstrated in group I over groups II and III (P = .02. 03, respectively). The incidence of dual combination therapy was significantly higher in the patients whose prostate volume was ≥30 mL and whose PSA was ≥1.5. CONCLUSION At the initial visit, patients with LUTS/BPH, especially those who were relatively young, visited urologic centers because of to voiding symptoms rather than storage symptoms. In contrast, elderly men who visited the urologic centers complained not only of voiding symptoms but also storage symptoms. However, at 12 months' follow up, all of the age groups showed improvement in both storage and voiding symptoms.
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Oh JM, Jung YS, Jeon BS, Yoon BI, Lee KS, Kim BH, Oh SJ, Kim SK. Evaluation of hepatotoxicity and oxidative stress in rats treated with tert-butyl hydroperoxide. Food Chem Toxicol 2012; 50:1215-21. [PMID: 22326806 DOI: 10.1016/j.fct.2012.01.031] [Citation(s) in RCA: 206] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2011] [Revised: 12/15/2011] [Accepted: 01/24/2012] [Indexed: 11/19/2022]
Abstract
Although tert-butyl hydroperoxide (t-BHP) is commonly used to induce oxidative stress, little is known about the time- or dose-dependence of its oxidative effects. In this study, we examined hepatotoxicity and oxidative stress in male rats at various times (0-24 h) after t-BHP (0, 0.2, 0.5, 1 or 3 mmol/kg, ip) treatment. Serum hepatotoxicity parameters were increased from 2 h following 1 mmol/kg t-BHP and reached their maximum values at 8 h. Plasma malondialdehyde levels were maximally elevated by 62% at 0.5 h and returned to control levels by 4 h. Hepatic glutathione levels were decreased between 0.5 and 2 h, and hepatic glutathione disulfide levels were increased at 2h. Interestingly, hepatic glutathione levels were increased at 24 h, which may be attributed to up-regulation of glutathione synthesis through induction of gamma-glutamylcysteine ligase expression. The elevation of hepatotoxic parameters and plasma MDA was observed from 0.5 to 1 mmol/kg t-BHP, respectively, in a dose-dependent manner. Considering that the maximal dose resulted in 20% lethality, 1 mmol/kg of t-BHP may be suitable for evaluating antioxidant activity of tested compounds. Our results provide essential information to characterize the t-BHP-induced oxidative stress and hepatotoxicity.
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Yoon BI, Shin TS, Cho HJ, Hong SH, Lee JY, Hwang TK, Kim SW. Is it effective to perform two more prostate biopsies according to prostate-specific antigen level and prostate volume in detecting prostate cancer? Prospective study of 10-core and 12-core prostate biopsy. UROLOGY JOURNAL 2012; 9:491-497. [PMID: 22641493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
PURPOSE To evaluate the effectiveness of 2 more core prostate biopsy protocol in detecting the prostate cancer (PCa) by comparing 10-core prostate biopsy with 12-core according to the prostate-specific antigen (PSA) level and the prostate volume. MATERIALS AND METHODS A total of 474 men with elevated serum levels of PSA between 2.5 and 20.0 ng/mL, regardless of abnormal finding on digital rectal examination and transrectal ultrasonography, received transrectal ultrasound-guided prostate biopsies. The patients were prospectively randomized to undergo 10-core (group 1, n = 351) or 12-core (group 2, n = 123) biopsy. The PCa detection rates were assessed and compared according to the serum level of PSA and prostate volume. RESULTS Of 474 men, 128 (27.0%) were diagnosed with PCa. The PCa detection rates of 10-core and 12-core biopsies were 26.4% and 28.4%, respectively (P = .378). There was no difference in cancer detection rates according to PSA level in both groups. Comparing the cancer detection rates according to the prostate volume (< 40 mL and ≥ 40 mL), the patients with prostate volume ≥ 40 mL showed higher cancer detection rates in 12-core biopsy group (26.9%) compared with 10-core biopsy group (16.4%) (P < .05). CONCLUSION The overall cancer detection rates showed no differences in both groups. But the 12-core biopsy was a more efficient method in men with a prostate volume of ≥ 40 mL, compared to the 10-core biopsy.
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Kim S, Yoon BI, Kim SJ, Cho HJ, Kim HS, Hong SH, Lee JY, Hwang TK, Kim SW. Effect of Oral Administration of Acetaminophen and Topical Application of EMLA on Pain during Transrectal Ultrasound-Guided Prostate Biopsy. Korean J Urol 2011; 52:452-6. [PMID: 21860764 PMCID: PMC3151631 DOI: 10.4111/kju.2011.52.7.452] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2011] [Accepted: 06/10/2011] [Indexed: 11/18/2022] Open
Abstract
Purpose Transrectal ultrasound-guided prostate biopsy is the procedure of choice for diagnosing prostate cancer. We compared with pain-relieving effect of acetaminophen, a known drug for enhancing the pain-relieving effect of tramadol, and eutectic mixture of local anesthetics (EMLA), a local anesthetic agent, with that of the conventional periprostatic nerve block method. Materials and Methods This was a prospective, randomized, single-blinded study. A total of 430 patients were randomly assigned to three groups. Group 1 received a periprostatic nerve block with 1% lidocaine, group 2 received acetaminophen 650 mg, and group 3 received EMLA cream for pain control. All patients were given 50 mg of tramadol intravenously 30 minutes before the procedure. At 3 hours after completion of the procedure, the patients were asked to grade their pain on a horizontal visual analogue scale (VAS). The patients were also asked whether they were willing to undergo future biopsy if required. Results There were no significant differences between the three groups in terms of age, prostate-specific antigen, prostate size, or numbers of biopsy cores. The pain scores for groups 2 and group 3, which were 3.47±1.92 and 3.50±1.36, respectively, were similar and were significantly lower than that of group 1, which was 5.24±2.07. Conclusions Acetaminophen and EMLA cream with intravenous injection of tramadol are safe, easy, and effective methods of controlling pain during the procedure. These methods were more effective for pain relief than was the conventional periprostatic nerve block method.
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Choi MS, Choi YS, Yoon BI, Kim SJ, Cho HJ, Hong SH, Lee JY, Hwang TK, Kim SW. The Clinical Value of Performing an MRI before Prostate Biopsy. Korean J Urol 2011; 52:572-7. [PMID: 21927706 PMCID: PMC3162225 DOI: 10.4111/kju.2011.52.8.572] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2011] [Accepted: 07/14/2011] [Indexed: 11/18/2022] Open
Abstract
PURPOSE Prostate cancer foci have a characteristic feature in magnetic resonance imaging (MRI). We aimed to assess the clinical value of MRI before prostate biopsy in prostate cancer detection. MATERIALS AND METHODS From March 2009 to June 2010, 154 patients were enrolled in this study. A total of 51 patients with a clinical suspicion of prostate cancer underwent prostate MRI by a 3T scanner before transrectal ultrasound (TRUS)-guided biopsies. A total of 103 patients with a clinical suspicion of prostate cancer underwent prostate MRI after biopsies. The sensitivity, specificity, and positive predictive value (PPV) were evaluated. In addition, tumor location of pathologic findings and ADC mapping on MRI were matched and compared. RESULTS The sensitivity of MRI before and after biopsy was 84.8% and 92.4%, respectively. The PPV of MRI before and after biopsy was 75.7% and 92.4%, respectively. The MRI location match percentage before and after biopsy was 89.3% and 94.1%, respectively. CONCLUSIONS Compared with other previous reports, our results show that the prostate cancer detection sensitivity of MRI is on the rise. Furthermore, MRI before prostate biopsy can provide more information by which to identify prostate cancer during prostate biopsy and thus reduce the false-negative rate.
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Kim HW, Ha US, Woo JC, Kim SJ, Yoon BI, Lee SJ, Cho YH. Preventive effect of selenium on chronic bacterial prostatitis. J Infect Chemother 2011; 18:30-4. [PMID: 21814801 DOI: 10.1007/s10156-011-0276-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2011] [Accepted: 06/20/2011] [Indexed: 11/30/2022]
Abstract
The antibiotic treatment rate of chronic bacterial prostatitis (CBP) is low, and long-term administration can result in adverse events and bacterial resistance. For these reasons, a new preventive modality, which can replace traditional antibiotic therapy, is required. To evaluate the preventive effect of selenium on CBP, the pre-treatments were divided into four groups, administered for 4 weeks, as follows: (1) control, (2) ciprofloxacin, (3) selenium, and (4) ciprofloxacin and selenium. Then, drip infusion of a bacterial suspension (Escherichia coli Z17, O2:K1; H-) into the prostatic urethra of Wistar rats was conducted to induce CBP. In 4 weeks, the results of microbiological culture of prostate and urine samples as well as histological findings of the prostate in each group were analyzed. Selenium decreased bacterial infection significantly; the decrease in infiltration rate of inflammatory cells into prostate tissues in the selenium group was similar to that in the control group. The effect of hindering bacterial infection on prostate tissue was greater in the group administered both selenium and an antibiotic than in other groups given only one of the agents. Although the findings of this study suggest that selenium can have a preventive effect against the occurrence of CBP, methods to prevent CBP are still controversial.
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Kim SJ, Yang SK, Park SH, Sung YC, Yoon BI, Cho HJ, Hong SH, Lee JY, Hwang TK, Kim SW. 1118 EFFECT OF MESCENCHYMAL DERIVED STEM CELL INFECTED WITH RECOMBINANT ADENOVIRUS EXPRESSING HUMAN BDNF ON THE ERECTILE FUNCTION IN THE RAT MODEL WITH CAVERNOUS NERVE INJURY. J Urol 2011. [DOI: 10.1016/j.juro.2011.02.715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Choi JB, Yoon BI, Kim SJ, Cho HJ, Hong SH, Choi YJ, Kim SW, Hwang TK, Lee JY. Changes in clinicopathological characteristics of renal cell carcinoma in the past 25 years: a single-center experience. Korean J Urol 2011; 52:110-4. [PMID: 21379427 PMCID: PMC3045715 DOI: 10.4111/kju.2011.52.2.110] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2010] [Accepted: 01/04/2011] [Indexed: 01/14/2023] Open
Abstract
PURPOSE We examined changes in the clinicopathologic characteristics of renal cell carcinoma (RCC) in the past 25 years and aimed to obtain indicators for its diagnosis and treatment. MATERIALS AND METHODS The medical records of 563 patients with confirmed primary RCC after surgical treatment from 1985 to 2010 at Seoul St. Mary's Hospital were retrospectively reviewed. Patient and tumor characteristics were compared over 3 time periods (period 1: 1985-1994, period 2: 1995-2004, period 3: 2005-2010). RESULTS Period 1 included 65 patients, period 2 included 183 patients, and period 3 included 315 patients, showing an exponential growth in the number of patients. Frequency was highest in the late 50s age group. The review of clinical symptoms showed that incidental diagnosis increased significantly. The tumor size at diagnosis gradually decreased and the proportion of small tumors less than 4 cm increased remarkably. Concerning tumor spread, organ-confined tumors (T(1-2)N(0)M(0)) increased and distant metastasis decreased. Histologically, the clear cell type made up the greatest proportion, about 90% in each period, but subtypes besides the clear cell type increased over the study period. The rate of nephron-sparing surgery increased, and exophytic masses were the most common. CONCLUSIONS Our review of the recent 25 year's worth of data on RCC from Seoul St. Mary's Hospital showed that the incidental diagnosis of RCC increased over the study period in accordance with the development of screening tests. Tumor size decreased in accordance with the progress in imaging modalities. In the future, multicenter research will be needed to analyze the characteristics of whole renal cancer in Korea.
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Cho HJ, Kim SJ, Yoon BI, Youl-Lee J, Woong-Kim S, Hwang TK, Hong SH. Laparoscopic ureteroureterostomies for duplicated ureteral entrapment in a fractured spine. Urology 2011; 78:784-5. [PMID: 21310471 DOI: 10.1016/j.urology.2010.12.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2010] [Revised: 12/13/2010] [Accepted: 12/14/2010] [Indexed: 10/18/2022]
Abstract
An extremely rare case of ureteral entrapment caused by traumatic lumbar spine injury with a duplication anomaly is presented. The patient was successfully managed in a minimally invasive fashion with laparoscopic excision and ureteroureterostomy.
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Yoon BI, Ha US, Sohn DW, Lee SJ, Kim HW, Han CH, Lee CB, Cho YH. Anti-inflammatory and antimicrobial effects of nanocatechin in a chronic bacterial prostatitis rat model. J Infect Chemother 2010; 17:189-94. [PMID: 20694569 DOI: 10.1007/s10156-010-0098-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2010] [Accepted: 07/12/2010] [Indexed: 01/18/2023]
Abstract
Chronic bacterial prostatitis (CBP) is one of the most common relapsing urinary tract infection (UTI) in males. Catechin, an extract of green tea, is known to have anti-inflammatory and antimicrobial effects against various bacteria. However, catechin can be easily degenerated during digestion, and this may result in decreased absorption into the body. Nanocatechin is catechin coated with hydroxypropyl methyl cellulose by nanotechnology. It reduces degeneration during digestion and enhances absorption of catechin into the body. We evaluated the anti-inflammatory and antimicrobial effect of nanocatechin on CBP and also analyzed plasma concentration of catechins to evaluate absorptivity in an animal model. Forty rats demonstrating CBP were randomly divided into four groups: control, ciprofloxacin, catechin, and nanocatechin. After treatment, the results of microbiological culture of prostate and urine samples as well as histological findings of the prostate in each group were analyzed. Plasma concentration of catechins in catechin and nanocatechin groups was compared. The use of ciprofloxacin, catechin, and nanocatechin showed statistically significant decrease in bacterial growth and improvement in prostatic inflammation compared with the control group. The nanocatechin group showed statistically significant decrease in bacterial growth and improvement in prostatic inflammation compared with the catechin group. Plasma concentrations of epicatechin, gallocatechin gallate, and epigallocatechin gallate were significantly higher in the nanocatechin group than those in the catechin group. These results suggest that nanocatechin has better antimicrobial and anti-inflammatory effects on rat CBP than catechin due to higher absorption into the body.
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Cho HJ, Kim SJ, Yoon BI, Lee JY, Kim SW, Hwang TK, Hong SH. A novel bulldog clamp technique for management of a distal ureter and bladder cuff during laparoscopic nephroureterectomy. J Endourol 2010; 24:1719-20. [PMID: 20677987 DOI: 10.1089/end.2010.0163] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
A novel technique for achieving complete laparoscopic excision of the intramural ureter with a bladder cuff is presented using the bulldog clamp without opening the urinary tract.
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Cho HJ, Yoon BI, Kim SJ, Hong SH, Lee JY, Kim SW, Hwang TK. 997 SMALL RENAL CELL CARCINOMA: ANALYSIS OF CLINICAL AND PATHOLOGICAL FEATURES ACCORDING TO TUMORS 4CM OR LESS. J Urol 2010. [DOI: 10.1016/j.juro.2010.02.1966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Yoon BI, Cho HJ, Hong SH, Kim SW, Hwang TK, Kim CS, Lee HM, Kim CI, Yoo TK, Lee KS, Park K, Byun SS, Chung BH, Lee JY. 1631 SURVEY ON BPH PREVALENCE AND TREATMENT PATTERNS FOR MEN WITH LUTS VISITING UROLOGISTS AT GENERAL HOSPITALS IN KOREA: PART I. J Urol 2010. [DOI: 10.1016/j.juro.2010.02.1412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Park JH, Sung HW, Yoon BI, Kwon HM. Protection of chicken against very virulent IBDV provided by in ovo priming with DNA vaccine and boosting with killed vaccine and the adjuvant effects of plasmid-encoded chicken interleukin-2 and interferon-gamma. J Vet Sci 2009; 10:131-9. [PMID: 19461208 PMCID: PMC2801112 DOI: 10.4142/jvs.2009.10.2.131] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The aim of this study was to examine the efficacy of in ovo prime-boost vaccination against infectious bursal disease virus (IBDV) using a DNA vaccine to prime in ovo followed by a killed-vaccine boost post hatching. In addition, the adjuvant effects of plasmid-encoded chicken interleukin-2 and chicken interferon-γ were tested in conjunction with the vaccine. A plasmid DNA vaccine (pcDNA-VP243) encoding the VP2, VP4, and VP3 proteins of the very virulent IBDV (vvIBDV) SH/92 strain was injected into the amniotic sac alone or in combination with a plasmid encoding chicken IL-2 (ChIL-2) or chicken IFN-γ (ChIFN-γ) at embryonation day 18, followed by an intramuscular injection of a commercial killed IBD vaccine at 1 week of age. The chickens were orally challenged with the vvIBDV SH/92 strain at 3 weeks of age and observed for 10 days. In ovo DNA immunization followed by a killed-vaccine boost provided significantly better immunity than the other options. No mortality was observed in this group after a challenge with the vvIBDV. The prime-boost strategy was moderately effective against bursal damage, which was measured by the bursa weight/body weight ratio, the presence of IBDV RNA, and the bursal lesion score. In ovo DNA vaccination with no boost did not provide sufficient immunity, and the addition of ChIL-2 or ChIFN-γ did not enhance protective immunity. In the ConA-induced lymphocyte proliferation assay of peripheral blood lymphocyte collected 10 days post-challenge, there was greater proliferation responses in the DNA vaccine plus boost and DNA vaccine with ChIL-2 plus boost groups compared to the other groups. These findings suggest that priming with DNA vaccine and boosting with killed vaccine is an effective strategy for protecting chickens against vvIBDV.
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Yoon BI, Hwang TK, Kim JC. Impact of Laparoscopic Radical Prostatectomy on Urinary Incontinence and Lower Urinary Tract Symptoms. Korean J Urol 2008. [DOI: 10.4111/kju.2008.49.2.134] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Pakhrin B, Kang MS, Bae IH, Park MS, Jee H, You MH, Kim JH, Yoon BI, Choi YK, Kim DY. Retrospective study of canine cutaneous tumors in Korea. J Vet Sci 2007; 8:229-36. [PMID: 17679768 PMCID: PMC2868128 DOI: 10.4142/jvs.2007.8.3.229] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Over the 42 month period from January 2003 to June 2006, a total of 2,952 canine biopsy specimens were received from the Veterinary Medical Teaching Hospital of Seoul National University and from veterinary practitioners across the nation. Out of these, 748 (25.34%) cases were diagnosed as canine cutaneous tumors in the Department of Veterinary Pathology, College of Veterinary Medicine, Seoul National University, Korea. Thirty-eight different types of cutaneous tumors were identified and categorized into epithelial and melanocytic tumors (56.95%), mesenchymal tumors (38.90%), and hematopoietic tumors (4.14%) located in the skin. Among these, 69.25% were benign and 30.74% were malignant. The top ten most frequently diagnosed cutaneous tumors were epidermal and follicular cysts (12.70%), lipoma (11.36%), mast cell tumors (8.82%), cutaneous histiocytoma (7.49%), basal cell tumors (6.82%), sebaceous gland adenoma (6.68%), sebaceous gland hyperplasia (5.08%), hepatoid gland adenoma (3.61%), apocrine adenocarcinoma (3.07%), and fibroma (2.81%), in order of prevalence. They comprised 68.45% of all cutaneous tumors. These top ten cutaneous tumors were distributed on the trunk (30.08%), head and neck (20.9%), extremities (19.14%), anal and perianal area (8.59%), and tail (3.91%). The age of the dogs with the ten most frequent tumors had a mean age of 8.3 years, with a range of 2 months to 19 years. When all types of tumors were considered together in the entire population, there was no difference in incidence according to sex.
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Lee KH, Cho SY, Park DJ, Yoon BI, Kim SW, Gwon DI, Paik MH, Kim HW. Efficacy of Renal Artery Embolization using a Mixture of Histoacryl® and Lipiodol in a Rabbit Model. Korean J Urol 2007. [DOI: 10.4111/kju.2007.48.9.903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Kim HW, Cho SY, Park DJ, Yoon BI, Lee JY. Effects of Rho Kinase Inhibitor on Detrusor Overactivity after Bladder Outlet Obstruction in Rats. Korean J Urol 2007. [DOI: 10.4111/kju.2007.48.8.832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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