57 results on '"Soon Chul Myung"'
Search Results
2. MP32-04 GEMCITABINE–CISPLATIN VERSUS MVAC CHEMOTHERAPY IN UROTHELIAL CARCINOMA: A NATIONWIDE COHORT STUDY
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Se Young Choi, Jong Hyun Tae, Byung Hoon Chi, In Ho Chang, Tae-Hyoung Kim, Soon Chul Myung, Jung Hoon Kim, Jin Wook Kim, and Yong Seong Lee
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Urology - Published
- 2023
3. MP15-20 URINARY TRACT INFECTION AFTER RADIATION THERAPY OR RADICAL PROSTATECTOMY ON PROGNOSIS OF PATIENTS WITH PROSTATE CANCER: A POPULATION-BASED STUDY
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Se Young Choi, Jong Hyun Tae, Byung Hoon Chi, In Ho Chang, Tae-Hyoung Kim, Soon Chul Myung, Jung Hoon Kim, Jin Wook Kim, and Yong Seong Lee
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Urology - Published
- 2023
4. MP03-14 NEOADJUVANT VERSUS ADJUVANT CHEMOTHERAPY IN BLADDER CANCER: A NATIONWIDE COHORT STUDY
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Se Young Choi, Taekyu Huh, Joonhee Gook, Jae Hun Shim, Jong Hyun Tae, Byung Hoon Chi, Jin Wook Kim, In Ho Chang, Tae-Hyoung Kim, and Soon Chul Myung
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Urology - Published
- 2022
5. Neoadjuvant versus adjuvant chemotherapy in upper tract urothelial carcinoma: A nationwide cohort study
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Jong Hyun Tae, Moon Soo Ha, Byung Hoon Chi, In Ho Chang, Tae-Hyoung Kim, Soon Chul Myung, Tuan Thanh Nguyen, Myoungsuk Kim, Kyung-Eun Lee, Yuwon Kim, Hyun-ki Woo, Dae-Sung Kyoung, Hasung Kim, and Se Young Choi
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Cohort Studies ,Carcinoma, Transitional Cell ,Reproductive Medicine ,Urinary Bladder Neoplasms ,Chemotherapy, Adjuvant ,Urology ,Humans ,General Medicine ,Neoadjuvant Therapy ,Retrospective Studies - Abstract
Purpose This study aimed to evaluate the trend of adjuvant chemotherapy (AC) and neoadjuvant chemotherapy (NAC) in patients who underwent radical nephroureterectomy with bladder cuff excision (NUx) for upper tract urothelial carcinoma (UTUC) to compare the perioperative outcomes and overall survival (OS) between AC and NAC using nationwide population-based data. Materials and methods We collected data on patients diagnosed with UTUC and treated with NUx between 2004 and 2016 using the National Health Insurance Service database, and evaluated the overall treatment trends. The AC and NAC groups were propensity score-matched. Cox proportional hazard and Kaplan-Meier analyses were used to assess survival. Results Of the 8,705 enrolled patients, 6,627 underwent NUx only, 94 underwent NAC, and 1,984 underwent AC. The rate of NUx without perioperative chemotherapy increased from 70.8 to 78.2% (R2 = 0.632; p Conclusion The use of NUx without perioperative chemotherapy has tended to increase in South Korea. Dialysis, TUR-BT, and radiotherapy rates after NUx were similar between the NAC and AC groups. There was no significant difference in OS between the NAC and AC groups. Proper perioperative chemotherapy according to patient and tumor conditions should be determined by obtaining more evidence of UTUC.
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- 2022
6. Korean Ginseng Berry Extract Enhances the Male Steroidogenesis Enzymes In Vitro and In Vivo
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Hyun Joo Chung, Sang Jun Lee, Ara Jang, Chae Eun Lee, Da Won Lee, Soon Chul Myung, and Jin Wook Kim
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Psychiatry and Mental health ,Aging ,Reproductive Medicine ,Urology ,Health Policy ,Public Health, Environmental and Occupational Health ,Pharmacology (medical) - Published
- 2023
7. Peanut Sprout Extracts Cultivated with Fermented Sawdust Medium Inhibits Benign Prostatic Hyperplasia In Vitro and In Vivo
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Kisung Ko, Jun Hui Song, Wun-Jae Kim, Won Ryong Kim, Jin Wook Kim, Soon Chul Myung, Bae Whan Kim, Hyun Joo Chung, BoKyung Moon, Sung Kwon Moon, and Byungdoo Hwang
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Aging ,Urology ,rwpe-1 ,030232 urology & nephrology ,lcsh:Medicine ,Resveratrol ,resveratrol ,urologic and male genital diseases ,lcsh:RC870-923 ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,Prostate ,In vivo ,Medicine ,Pharmacology (medical) ,MTT assay ,Electrophoretic mobility shift assay ,benign prostatic hyperplasia ,030219 obstetrics & reproductive medicine ,business.industry ,Health Policy ,lcsh:R ,Public Health, Environmental and Occupational Health ,Cell cycle ,Hyperplasia ,medicine.disease ,lcsh:Diseases of the genitourinary system. Urology ,Molecular biology ,In vitro ,Psychiatry and Mental health ,medicine.anatomical_structure ,sawdust ,Reproductive Medicine ,chemistry ,cell cycle ,peanut ,business - Abstract
Purpose In this study, we tested whether the resveratrol-enriched peanut sprout extracts cultivated with fermented sawdust medium (PSEFS) could suppress benign prostatic hyperplasia (BPH) in vitro and in vivo. Materials and methods The mode of action of PSEFS was estimated by employing high-performance liquid chromatography analysis, MTT assay, cell counting, cell cycle analysis, immunoblots, and immunoprecipitation and electrophoretic mobility shift assay. In vivo efficacy of PSEFS was analyzed in BPH animal model via immunostaining and enzyme-linked immunosorbent assay. Results We selected the Yesan peanut sprout variety, which contains the highest level of resveratrol. The resveratrol levels in PSEFS were higher than those obtained with hydroponic technology. PSEFS treatment induced cell cycle arrest at the G1-phase by downregulating CDK4 and cyclin D1 via p21WAF1 induction in the RWPE-1 and WPMY prostate cells, thereby decreasing their proliferation. Treatment with PSEFS decreased ERK1/2 phosphorylation and increased JNK phosphorylation. The levels of DNA-bound transcription factors associated with proliferation (nuclear factor-κB, Sp-1, and AP-1) decreased upon PSEFS treatment in both prostate cells. Additionally, the levels of the molecular markers of BPH development (5α-reductase, androgen receptor, fibroblast growth factor, Bcl-2, and Bax) also changed by the addition of PSEFS. Finally, in a testosterone propionate-induced BPH model in rats, PSEFS administration attenuated the size, weight, and thickness of prostate tissues with no signs of death. Conclusions These results showed that PSEFS inhibited BPH both in vitro and in vivo and might be useful in the development of a potential BPH therapy.
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- 2020
8. PD42-02 THE EFFECTS OF RECOMBINANT BACILLUS CALMETTE-GUERIN RESISTANT TO ANTIMICROBIAL PEPTIDES ON ORTHOTOPIC BLADDER CANCER MOUSE MODEL
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Byung Hoon Chi, Se Young Choi, Soon Chul Myung, Tae-Hyoung Kim, Joonhee Gook, Jin Wook Kim, In Ho Chang, and Jae Hun Shim
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Bacillus (shape) ,Bladder cancer ,biology ,business.industry ,Urology ,Antimicrobial peptides ,biology.organism_classification ,medicine.disease ,Microbiology ,law.invention ,law ,Recombinant DNA ,Medicine ,business - Published
- 2021
9. PD42-01 ENHANCED INTRACELLULAR DELIVERY OF BCG CELL WALL SKELETON INTO BLADDER CANCER CELLS USING LIPOSOMES FUNCTIONALIZED WITH FOLIC ACID AND PEP-1 PEPTIDE
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Jae Hun Shim, In Ho Chang, Tae-Hyoung Kim, Se Young Choi, Jin Wook Kim, Byung Hoon Chi, Joonhee Gook, and Soon Chul Myung
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chemistry.chemical_classification ,Liposome ,Bladder cancer ,business.industry ,Urology ,Into bladder ,Peptide ,medicine.disease ,Cell Wall Skeleton ,complex mixtures ,Folic acid ,chemistry ,Cancer cell ,Cancer research ,Medicine ,business ,Intracellular - Abstract
INTRODUCTION AND OBJECTIVE:Although bacillus Calmette–Guerin cell wall skeleton (BCG-CWS) might function as a potential substitute for live BCG, its use in the treatment of bladder cancer remains l...
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- 2021
10. MP14-09 THE ROLE OF CYTOREDUCTIVE NEPHRECTOMY FOR METASTATIC RENAL CELL CARCINOMA IN NATIONAL HEALTH INSURANCE SERVICE
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Tae-Hyoung Kim, Jae Hun Shim, Jin Wook Kim, Soon Chul Myung, In Ho Chang, Byung Hoon Chi, Joonhee Gook, and Se Young Choi
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Service (business) ,medicine.medical_specialty ,National health insurance ,Renal cell carcinoma ,business.industry ,Urology ,General surgery ,medicine ,Cytoreductive nephrectomy ,urologic and male genital diseases ,medicine.disease ,business - Abstract
INTRODUCTION AND OBJECTIVE:To compare the survival outcomes between patients with metastatic renal cell carcinoma (RCC) treated with cytoreductive nephrectomy (CN) and without CN.METHODS:We evaluat...
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- 2021
11. Low-dose versus standard-dose bacille Calmette–Guérin for non-muscle-invasive bladder cancer: Systematic review and meta-analysis of randomized controlled trials
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Se Young Choi, Moon Soo Ha, Jung Hoon Kim, Byung Hoon Chi, Jin Wook Kim, In Ho Chang, Tae-Hyoung Kim, and Soon Chul Myung
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Male ,Urinary Bladder Neoplasms ,Urology ,BCG Vaccine ,Humans ,Female ,Randomized Controlled Trials as Topic - Abstract
Intravesical BCG (bacille Calmette-Guérin) instillation in patients with non-muscle-invasive bladder cancer decreases the risk for tumor recurrence and progression. After one BCG product was discontinued, a chronic global BCG shortage occurred. We focused on identifying a reduced dose of BCG that could maintain efficacy and reduce adverse effects.We conducted a comprehensive literature search of PubMed, Embase, the Cochrane Library, CINAHL, Web of Science, and Scopus to identify randomized controlled trials through April 2021. The odds ratios (ORs) and 95% confidence intervals (CIs) for the low and standard doses in nine studies were compared. A low dose was defined as a low volume of BCG compared with the standard BCG dose (Armand Frappier, 120 mg; Connaught, 81 mg; Danish 1331, 120 mg; modified Danish 1331, 120 mg; Tokyo 172, 80 mg).The low-dose group experienced aggravated recurrence (OR, 1.45; 95% CI, 1.09-1.94; p=0.01) but similar progression (OR, 1.11; 95% CI, 0.76-1.62; p=0.59), similar cancer-specific survival (OR, 1.02; 95% CI, 0.60-1.75; p=0.93), similar overall survival (OR, 1.09; 95% CI, 0.76-1.56; p=0.65), favorable adverse effects (OR, 0.41; 95% CI, 0.28-0.62; p0.0001), and favorable withdrawal (OR, 0.42; 95% CI, 0.25-0.71; p=0.001).Low-dose BCG had more unfavorable outcomes than did standard-dose BCG in terms of recurrence. Tumor progression, cancer-specific survival, and overall survival were similar between the doses. Low-dose BCG improved adverse effects and withdrawal. In the setting of BCG shortage, low-dose BCG may have strong potential as an alternative.
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- 2022
12. MP19-12 IMPACT OF INTRAOPERATIVE FROZEN SECTION BY LOCATION: DOES IT REALLY PREDICT SIGNIFICANT POSITIVE SURGICAL MARGINS AFTER ROBOT-ASSISTED LAPAROSCOPIC PROSTATECTOMY?
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Jin Wook Kim, Se Young Choi, Kyung Do Kim, Soon Chul Myung, Tae-Hyoung Kim, Choung-Soo Kim, Seung Hyun Ahn, In Ho Chang, Byung Hoon Chi, and Jae Hun Shim
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Biochemical recurrence ,medicine.medical_specialty ,Frozen section procedure ,business.industry ,Urology ,fungi ,Robot assisted laparoscopic prostatectomy ,medicine ,Positive Surgical Margin ,business ,Surgery - Abstract
INTRODUCTION AND OBJECTIVE:We investigated the relationship between positive surgical margin (PSM)-related factors and biochemical recurrence (BCR) and the ability of intraoperative frozen sections...
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- 2020
13. MP01-19 STRUCTURE ESTABLISHMENT OF THREE-DIMENSIONAL (3D) CELL CULTURE PRINTING MODEL FOR BLADDER CANCER
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Byung Hoon Chi, Kyung Do Kim, In Ho Chang, Jin Wook Kim, Tae-Hyoung Kim, Soon Chul Myung, Seung Hyun Ahn, Se Young Choi, and Jae Hun Shim
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3D cell culture ,medicine.anatomical_structure ,Bladder cancer ,business.industry ,In vivo ,Cell culture ,Urology ,Cell ,Cancer research ,food and beverages ,Medicine ,business ,medicine.disease - Abstract
INTRODUCTION AND OBJECTIVE:Two-dimensional (2D) cell culture is a valuable method for cell-based research but can provide unpredictable, misleading data about in vivo responses. In this study, we c...
- Published
- 2020
14. Single nucleotide polymorphisms in fibroblast growth factor 23 gene,FGF23, are associated with prostate cancer risk
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Kyeoung-Hwa Kim, Beom-Seok Yang, Soon Chul Myung, Hyun Sub Cheong, Jong Jin Oh, Seok-Soo Byun, Hae Jong Kim, Jaehyouk Lee, and Ee Lin Wong
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Fibroblast growth factor 23 ,Genetics ,Oncology ,medicine.medical_specialty ,business.industry ,Urology ,Haplotype ,Single-nucleotide polymorphism ,Odds ratio ,medicine.disease ,stomatognathic diseases ,Prostate cancer ,Polymorphism (computer science) ,Internal medicine ,Genetic variation ,medicine ,Population study ,business - Abstract
Objective To determine whether sequence variants within the FGF23 gene are associated with the risk of developing prostate cancer in a Korean population. Patients and Methods Five common single nucleotide polymorphisms (SNPs) in the FGF23 gene were assessed in 272 patients with prostate cancer and 173 control subjects with benign prostatic hyperplasia. Single-locus analyses were conducted using conditional logistic regression. In addition, we performed a haplotype analysis for the five FGF23 SNPs tested. Results Three SNPs in the FGF23 gene (rs11063118, rs13312789 and rs7955866) were associated with an increased risk of prostate cancer in our study population. Odds ratios for homozygous variants vs wild-type variants ranged from 1.68 (95% confidence interval [CI]: 1.15–2.46) to 1.79 (95% CI: 1.16–2.75). Conclusion This is the first study showing that genetic variations in FGF23 increase prostate cancer susceptibility.
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- 2013
15. MP45-10 IDENTIFICATION OF DOWNSTREAM GENES OF THE MTOR PATHWAY THAT PREDICT RECURRENCE AND PROGRESSION IN NON-MUSCLE INVASIVE HIGH-GRADE UROTHELIAL CARCINOMA OF THE BLADDER
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Shin Young Lee, Jin Wook Kim, Min-Soo Kim, Byung Hoon Chi, In Ho Chang, Soon Chul Myung, Kyung Do Kim, Tae-Hyoung Kim, Young Tae Moon, Jung Hoon Kim, Seung Hyun Ahn, and Jae Duck Choi
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Oncology ,medicine.medical_specialty ,Downstream (manufacturing) ,business.industry ,Urology ,Internal medicine ,Medicine ,Identification (biology) ,business ,Non muscle invasive ,Gene ,PI3K/AKT/mTOR pathway ,Urothelial carcinoma - Published
- 2016
16. MP74-11 PREDICTING TIME TO RECOVERY OF URINARY RETENTION
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Jung Hoon Kim, Jae Duck Choi, Kyung Do Kim, Young Tae Moon, Jin Wook Kim, Shin Young Lee, Seung Hyun Ahn, Min-Soo Kim, Soon Chul Myung, Tae-Hyoung Kim, and In Ho Chang
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medicine.medical_specialty ,Urinary retention ,business.industry ,Urology ,medicine ,medicine.symptom ,business - Published
- 2016
17. MP82-16 CT FOR EVALUATION OF UROLITHIASIS: IMAGE QUALITY OF ULTRALOW-DOSE (SUB MSV) CT WITH KNOWLEDGE-BASED ITERATIVE RECONSTRUCTION AND DIAGNOSTIC PERFORMANCE OF LOW-DOSE CT WITH STATISTICAL ITERATIVE RECONSTRUCTION
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Tae-Hyoung Kim, Min-Soo Kim, Kyung Do Kim, Seung Hyun Ahn, Soon Chul Myung, Jae Duck Choi, Jin Wook Kim, Jung Hoon Kim, In Ho Chang, Young Tae Moon, Shin Young Lee, and Byung Hoon Chi
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medicine.medical_specialty ,Image quality ,business.industry ,Urology ,Ultralow dose ,medicine ,Low dose ct ,Radiology ,Iterative reconstruction ,business - Published
- 2016
18. MP36-16 THE EXPRESSION OF BETA-DEFENSIN 131 PROMOTES INNATE IMMUNITY IN HUMAN PROSTATE EPITHELIAL CELLS
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Hae Jong Kim, Seung Hyun Ahn, Jae Duck Choi, Soon Chul Myung, Jaekhyouk Lee, Kyeoung-Hwa Kim, and Jung Hoon Kim
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Beta defensin ,Innate immune system ,business.industry ,Urology ,Cancer research ,Medicine ,business ,Human prostate - Published
- 2016
19. DNA Methylation-Mediated Downregulation of DEFB1 in Prostate Cancer Cells
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Jin Wook Kim, Soon Chul Myung, Ara Jang, Soon Auck Hong, Jun Hyun Han, and Jaehyouk Lee
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0301 basic medicine ,Oncology ,Male ,beta-Defensins ,Transcription, Genetic ,Bisulfite sequencing ,lcsh:Medicine ,Artificial Gene Amplification and Extension ,Biochemistry ,Polymerase Chain Reaction ,Epigenesis, Genetic ,0302 clinical medicine ,Transcriptional regulation ,Medicine and Health Sciences ,Promoter Regions, Genetic ,lcsh:Science ,Regulation of gene expression ,Multidisciplinary ,DNA methylation ,Prostate Cancer ,Prostate Diseases ,Prostate ,Methylation ,Chromatin ,Nucleic acids ,Gene Expression Regulation, Neoplastic ,CpG site ,030220 oncology & carcinogenesis ,Epigenetics ,Anatomy ,DNA modification ,Chromatin modification ,Research Article ,Chromosome biology ,medicine.medical_specialty ,Cell biology ,Urology ,DNA transcription ,Biology ,Research and Analysis Methods ,Cell Line ,03 medical and health sciences ,Exocrine Glands ,Internal medicine ,Cell Line, Tumor ,medicine ,Genetics ,Humans ,Molecular Biology Techniques ,Molecular Biology ,Reporter gene ,Treatment Guidelines ,Health Care Policy ,Biology and life sciences ,lcsh:R ,Cancers and Neoplasms ,Prostatic Neoplasms ,DNA ,Sequence Analysis, DNA ,Health Care ,Genitourinary Tract Tumors ,030104 developmental biology ,Cancer research ,Prostate Gland ,CpG Islands ,lcsh:Q ,Gene expression ,Biomarkers - Abstract
Epigenetic aberrations play crucial roles in prostate cancer (PCa) development and progression. The DEFB1 gene, which encodes human beta-defensin-1 (HBD-1), contributes to innate immune responses and functions as a potential tumor suppressor in urological cancers. We investigated whether differential DNA methylation at the low CpG-content promoter (LCP) of DEFB1 was associated with transcriptional regulation of DEFB1 in PCa cells. To identify distinct CpG loci within the DEFB1 LCP related to the epigenetic regulation of DEFB1, we performed an in vitro methylated reporter assay followed by bisulfite sequencing of the DEFB1 promoter fragment. The methylation status of two adjacent CpG loci in the DEFB1 LCP was found to be important for DEFB1 expression in PCa cells. Paired epithelial specimens of PCa patients (n = 60), which were distinguished as non-tumor and tumor tissues by microdissection, were analyzed by bisulfite pyrosequencing of site-specific CpG dinucleotide units in the DEFB1 LCP. CpG methylation frequencies in the DEFB1 LCP were significantly higher in malignant tissues than in adjacent benign tissues across almost all PCa patients. These results suggested that methylation status of each CpG site in the DEFB1 promoter could mediate downregulation of DEFB1 in PCa cells.
- Published
- 2016
20. Correlation of metabolic syndrome with urinary stone composition
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Tae-Hyoung Kim, Soon Chul Myung, Sung Tae Cho, and Seung Il Jung
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medicine.medical_specialty ,business.industry ,Urology ,Hypertriglyceridemia ,Case-control study ,Calcium oxalate ,Odds ratio ,urologic and male genital diseases ,medicine.disease ,Impaired fasting glucose ,Obesity ,Gastroenterology ,chemistry.chemical_compound ,Endocrinology ,chemistry ,Internal medicine ,medicine ,Uric acid ,Metabolic syndrome ,business - Abstract
Objective To determine the correlation between metabolic syndrome and the distribution of stone components in patients with urolithiasis. Methods Between January 2007 and December 2010, renal or ureteral stones were collected from 712 patients (432 males, 280 females) who underwent surgical intervention at three hospitals in South Korea. Metabolic syndrome was defined according to the latest definition of the International Diabetes Federation, using ethnicity- and sex-specific cut-off values for central obesity. Patients were assessed by factors used in metabolic syndrome. All urinary stones were analyzed using infrared spectrophotometry and categorized according to their main component. Results The patients' mean age was 55.9 years (range 19–93 years). Of the 712 patients, 347 (48.7%; 205 males, 142 females) had a diagnosis of metabolic syndrome. Calcium oxalate (71.5%), uric acid (15.3%), carbonate apatite (8.0%) and struvite (4.1%) calculi were found as the main stone components. Overall, the proportion of uric acid calculi was markedly higher in patients with rather than without metabolic syndrome (19.6 vs 11.2%; P = 0.002). However, the proportion of calcium oxalate, carbonate apatite and struvite calculi did not differ between the two groups. The multivariable-adjusted odds ratio for uric acid calculi according to the metabolic syndrome components indicated that the presence of metabolic syndrome was associated with a 93% increased odds ratio of uric acid calculi compared with the absence of metabolic syndrome. Impaired fasting glucose and hypertriglyceridemia were independent risk factors for uric acid calculi. Conclusions Metabolic syndrome is associated with a significantly increased risk of uric acid calculi development, especially those with impaired fasting glucose and hypertriglyceridemia.
- Published
- 2012
21. Single nucleotide polymorphisms in DKK3 gene are associated with prostate cancer risk and progression
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Soon Chul Myung, Min Su Kim, Hae Jong Kim, and Ha Na Lee
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Genetic Markers ,Male ,Oncology ,medicine.medical_specialty ,Seoul ,Urology ,Single-nucleotide polymorphism ,lcsh:RC870-923 ,Polymorphism, Single Nucleotide ,Cohort Studies ,Prostate cancer ,Gene Frequency ,Reference Values ,Risk Factors ,Prostate ,Internal medicine ,medicine ,Humans ,SNP ,Polymorphism ,Allele frequency ,Genetic Association Studies ,Adaptor Proteins, Signal Transducing ,Aged ,Neoplasm Staging ,Aged, 80 and over ,Genetics ,business.industry ,Haplotype ,Case-control study ,Genetic Variation ,Prostatic Neoplasms ,Single Nucleotide ,lcsh:Diseases of the genitourinary system. Urology ,medicine.disease ,Logistic Models ,medicine.anatomical_structure ,Haplotypes ,Genetic marker ,Case-Control Studies ,Disease Progression ,Intercellular Signaling Peptides and Proteins ,Regression Analysis ,Original Article ,Biological Markers ,Chemokines ,Neoplasm Grading ,business - Abstract
ARTIcLE InfO We had investigated whether sequence variants within DKK3 gene are associated with the development of prostate cancer in a Korean study cohort. We evaluated the association between 53 single nucleotide polymorphisms (SNPs) in the DKK3 gene and prostate cancer risk as well as clinical characteristics (PSA, clinical stage, pathological stage and Gleason score) in Korean men (272 prostate cancer subjects and 173 benign prostate hyperplasia subjects) using unconditional logistic regression analysis. Of the 53 SNPs and 25 common haplotypes, 5 SNPs and 4 haplotypes were associated with prostate cancer risk (P=0.02-0.04); 3 SNPs and 2 haplotypes were significantly associated with susceptibility to prostate cancer, however 2 SNPs and 2 haplotypes exhibited a significant protective effect on prostate cancer. Logistic analyses of the DKK3 gene polymorphisms with several prostate cancer related factors showed that several SNPs were significant; three SNPs and two haplotypes to PSA level, three SNPs and two haplotypes to clinical stage, nine SNPs and two haplotype to pathological stage, one SNP and one haplotypes to Gleason score. To the author’s knowledge, this is the first report documenting that DKK3 polymorphisms are not only associated with prostate cancer but also related to prostate cancer-related factors.
- Published
- 2015
22. Prostate Specific Antigen Velocity per Prostate Volume: A Novel Tool for Prostate Biopsy Prediction
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Se Young Choi, Wonyong Kim, Young Sun Kim, Soon Chul Myung, In Ho Chang, and Tae-Hyoung Kim
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Adult ,Male ,Oncology ,medicine.medical_specialty ,Prostate biopsy ,Biopsy ,Urology ,Prostate cancer ,Prostate ,Internal medicine ,Odds Ratio ,medicine ,Humans ,Ultrasound, High-Intensity Focused, Transrectal ,Aged ,Aged, 80 and over ,PSA Velocity ,medicine.diagnostic_test ,Receiver operating characteristic ,business.industry ,Prostatic Neoplasms ,Middle Aged ,Prostate-Specific Antigen ,medicine.disease ,Prostate-specific antigen ,Treatment Outcome ,medicine.anatomical_structure ,ROC Curve ,Quartile ,Multivariate Analysis ,Transrectal ultrasonography ,business - Abstract
Objective To investigate whether altered prostate specific antigen (PSA) levels due to individual prostate growth may affect the PSA velocity (PSAV). Materials and Methods Between January 2000 and December 2009, a total of 159 men with at least 2 transrectal ultrasonography (TRUS) procedures and concurrent PSA measurements underwent prostate biopsy because of suspicion of prostate cancer. We measured PSAV, prostate volume velocity (PVV), PSA density (PSAD), PSAD velocity (PSADV), and PSAV per initial volume. We then classified the total group into a prostate cancer (PC) group and non-PC group, and compared the 2 groups. We investigated which variables were exact to predict prostate biopsy using univariate and multivariate analyses, and assessed the diagnostic performance using the receiver operating characteristic (ROC) curve. Results PVV showed a positive correlation with initial prostate volume in the total and non-PC group; PVV showed a positive correlation with PSAV, and initial prostate volume correlated with PSAV in the non-PC group. The PC group showed smaller prostate volumes, higher PSAD, higher PSADV, higher PSAV per initial volume, and longer follow-up periods. After adjusting for confounding factors, the odds ratios of prostate cancer across the quartile of PSAVD were 1, 1.889, 3.226, and 7.125 ( P for trend=.007 ), and PSAV per initial volume were 1, 2.924, 2.937, and 7.536 ( P for trend=.031 ). On the ROC curve, the areas under the curves (AUC) of PSAV per initial volume were higher than for PSAV and PSADV. Conclusion Altered PSA levels due to individual prostate growth may affect the use of PSAV to predict prostate biopsy outcomes in follow-up.
- Published
- 2011
23. Sequence variants of toll-like receptor 4 (TLR4) and the risk of prostate cancer in Korean men
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Soon Chul Myung, Joon Seol Bae, Wun-Jae Kim, Wonyong Kim, Hae Jong Kim, Kyung Do Kim, Hyoung Doo Shin, Jaehyouk Lee, Ji Youl Lee, and In Ho Chang
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Male ,Oncology ,medicine.medical_specialty ,Genotype ,Urology ,Single-nucleotide polymorphism ,Polymorphism, Single Nucleotide ,Prostate cancer ,Internal medicine ,Republic of Korea ,medicine ,Humans ,SNP ,Genetic Predisposition to Disease ,3' Untranslated Regions ,Genetic Association Studies ,Aged ,business.industry ,Haplotype ,Case-control study ,Prostatic Neoplasms ,Middle Aged ,Acquired immune system ,medicine.disease ,Toll-Like Receptor 4 ,Haplotypes ,Case-Control Studies ,Cohort ,business - Abstract
Chronic inflammation has been considered a potential risk factor for prostate cancer. Toll-like receptors (TLRs) are important in the innate immune response to pathogens and in cross talk between innate immunity and adaptive immunity. In this study, sequence variants in the TLR4 gene were investigated to determine whether they were associated with prostate cancer risk in a Korean cohort. An association study between 11 single-nucleotide polymorphisms (SNPs) of the TLR4 gene and prostate cancer was performed in 463 Korean male subjects including 240 prostate cancer patients and 223 healthy controls. SNPs were genotyped using the TaqMan assay, and their association with the risk of prostate cancer was evaluated using logistic regression analysis. The statistical analysis revealed that one SNP at the 3′UTR (rs11536889) showed significant association with the risk of prostate cancer (P corr = 0.005, OR = 1.81). One common haplotype (ht2) was also significantly associated with the risk of prostate cancer (P corr = 0.009, OR = 1.77). However, further analysis showed no association between any of the SNPs and prostate cancer prognostic factors such as the Gleason score or tumor stage. The findings of this study suggest that polymorphisms of the TLR4 gene might be associated with the risk of prostate cancer in Korean men.
- Published
- 2011
24. Expression of human β-defensin-2 in the prostate
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Hea Jin Kim, Tae Jin Lee, In Ho Chang, Shin Young Lee, Soon Chul Myung, Ja Rang Jung, Wonyong Kim, and Hae Jong Kim
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PCA3 ,medicine.medical_specialty ,business.industry ,Urology ,Prostatitis ,Hyperplasia ,urologic and male genital diseases ,medicine.disease ,Epithelium ,IκBα ,Endocrinology ,medicine.anatomical_structure ,Cell culture ,Prostate ,Internal medicine ,medicine ,Cancer research ,business ,Defensin - Abstract
OBJECTIVE To investigate the expression and regulation of human β-defensin-2 (HBD-2) in the prostate. PATIENTS AND METHODS Normal human prostate epithelial cell line (RWPE-1), human prostate cancer cell lines (DU-145, PC-3), and paraffin-embedded prostate tissue from patients with benign prostatic hyperplasia (BPH) were analysed by RT-PCR and immunohistochemical staining. HBD-2 expression was also analysed by RT-PCR and ELISA in RWPE-1 cells treated with lipopolysaccharide (LPS). Nuclear factor-κB (NF-κB) activation was assessed by IκBα immunoblotting and electrophoretic mobility shift assay (EMSA). RESULTS BPH tissue and all of the tested prostate cell lines other than PC-3 constitutively express HBD-2 mRNA. HBD-2 protein was strongly detected in prostate gland tissue surrounded by inflammatory cells including macrophages. Exposure to LPS induced HBD-2 upregulation and NF-κB activation, as assessed by IκBα phosphorylation and degradation in RWPE-1 cells. Bay11-7082, an NF-κB inhibitor prevented LPS-induced HBD-2 production in RWPE-1 cells. CONCLUSIONS Prostate epithelial cells may constitutively express HBD-2, and its expression was upregulated by LPS. Our data indicate that HBD-2 may be an important immunomodulatory factor in prostate function. Expression of HBD-2 in normal prostates and the potential role of HBD-2 in prostatitis and BPH should be addressed in the future.
- Published
- 2010
25. Expression of resistin in the prostate and its stimulatory effect on prostate cancer cell proliferation
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Eon Sub Park, Eun Ha Won, Tae-Hyoung Kim, Soon Chul Myung, Mi Kyung Kim, Wonyong Kim, Yong Seong Lee, Hae Jong Kim, and In Ho Chang
- Subjects
PCA3 ,medicine.medical_specialty ,endocrine system diseases ,Cell growth ,business.industry ,Urology ,nutritional and metabolic diseases ,Adipokine ,respiratory system ,medicine.disease ,Prostate cancer ,medicine.anatomical_structure ,Endocrinology ,Prostate ,Internal medicine ,medicine ,Resistin ,business ,Protein kinase B ,hormones, hormone substitutes, and hormone antagonists ,PI3K/AKT/mTOR pathway - Abstract
What’s known on the subject? and What does the study add? We found that resistin, a member of adipokine family, is expressed in human prostate cancers and induces prostate cancer cell proliferation through PI3K/Akt signaling pathways. We are studying the effect of resistin on other urogenital tract diseases besides prostate cancer, and the relationship between other adipokines and the urogenital tract diseases. OBJECTIVES • To determine whether resistin, a novel adipokine, induces prostate cancer cell proliferation. • To identify the mechanisms underlying the activation of prostate cancer cells by resistin. MATERIALS AND METHODS • Semi-quantitative reverse transcriptase-polymerase chain reaction and immunohistochemical staining were performed to investigate the intensity of prostate epithelial resistin expression. • Human full-length resistin gene (RETN) was transfected into the PC-3 cells using the pEGFP-N1 vector to assess the effect of overexpression of resistin in prostate cancer cell line PC-3. • Various concentrations of human recombinant protein resistin were added to the hormone-insensitive prostate cancer cell lines PC-3 and DU-145 for 48 h, and cell proliferation was assessed by a water-soluble tetrazolium salt assay. RESULTS • Human prostate cancer cell lines PC-3 and DU-145 were found to express the human resistin mRNA. • Resistin protein was strongly detected in high-grade prostate cancer tissue, whereas BPH or low-grade prostate cancer tissue revealed fainter expression of resistin. • Cell proliferation was stimulated by both the full-length resistin gene overexpression and resistin treatment. • Akt phosphorylation occurred after addition of resistin to PC-3 and DU-145 cells. LY294002, a pharmacological inhibitor of phosphatidylinositol 3-kinase (PI3K), significantly inhibited PC-3 and DU-145 cell proliferation after resistin treatment. CONCLUSIONS • Resistin is expressed in human prostate cancers. • Resistin induces prostate cancer cell proliferation through PI3K/Akt signalling pathways. • The proliferative effect of resistin on prostate cancer cells may account in part for prostate cancer progression.
- Published
- 2010
26. Relationship between insulin resistance, obesity and serum prostate-specific antigen levels in healthy men
- Author
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Yong Taec Lee, Tae-In Choi, In Ho Chang, Wonyong Kim, Kyung Won Kwak, Seung Hyun Ahn, June Hyun Han, Soon Chul Myung, Seung Young Oh, Sook Hee Sung, Young-Woo Jin, and Yong-Seong Lee
- Subjects
Adult ,Male ,medicine.medical_specialty ,Urology ,Blood sugar ,Body Mass Index ,Young Adult ,Insulin resistance ,Internal medicine ,Humans ,Medicine ,Obesity ,business.industry ,Quantitative insulin sensitivity check index ,General Medicine ,Middle Aged ,Prostate-Specific Antigen ,medicine.disease ,Prostate-specific antigen ,Endocrinology ,Blood chemistry ,Quartile ,Linear Models ,Original Article ,Insulin Resistance ,business ,Body mass index - Abstract
The purpose of this study was to determine the relationship between insulin resistance, obesity and serum prostate-specific antigen (PSA) levels in healthy men with serum PSA level below 4 ng mL−1. The men included in the study cohort were 11 827 healthy male employees of the Korea Hydro and Nuclear Power Co., LTD who had undergone medical checkups including fasting glucose, fasting insulin and serum PSA between January 2003 and December 2008. Insulin resistance was calculated by homeostasis model assessment (HOMA [fasting glucose × fasting insulin]/22.5) and quantitative insulin sensitivity check index (QUICKI; 1/[log (fasting insulin) + log (fasting glucose)]). Age-adjusted body mass index (BMI) was significantly increased according to increasing quartile of insulin resistance as determined by HOMA and QUICKI, respectively, in analysis of variance (ANOVA) test and Duncan's multiple comparison test (P < 0.001), but age-adjusted serum PSA concentration was significantly decreased according to increasing quartile of insulin resistance as determined by HOMA and QUICKI (P < 0.001). Age, BMI, insulin resistance by HOMA or QUICKI were significantly independent variables to serum PSA level in a multivariate linear regression analysis (P < 0.001). Insulin resistance was a significant independent variable to serum PSA level along with BMI. Insulin resistance and BMI were negatively correlated with serum PSA level in healthy men. Insulin resistance was positively correlated with BMI.
- Published
- 2010
27. ORIGINAL RESEARCH—BASIC SCIENCE: The Effects of Dehydroepiandrosterone (DHEA)/DHEA-Sulfate (DHEAS) on the Contraction Responses of the Clitoral Cavernous Smooth Muscle from Female Rabbits
- Author
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Kyung Do Kim, Moo Yeol Lee, Sae Chul Kim, Wonyong Kim, Shin Young Lee, Soo Hyun Park, Tae-Hyoung Kim, and Soon Chul Myung
- Subjects
endocrine system ,medicine.medical_specialty ,Contraction (grammar) ,Voltage-dependent calcium channel ,business.industry ,Urology ,Endocrinology, Diabetes and Metabolism ,Calcium channel ,Dehydroepiandrosterone ,Glibenclamide ,Psychiatry and Mental health ,Endocrinology ,Reproductive Medicine ,Internal medicine ,polycyclic compounds ,Medicine ,Sodium nitroprusside ,skin and connective tissue diseases ,business ,human activities ,Phenylephrine ,hormones, hormone substitutes, and hormone antagonists ,Acetylcholine ,medicine.drug - Abstract
Introduction Dehydroepiandrosterone (DHEA) is a multifunctional steroid that is increasingly available as a supplement aimed at improving libido and well-being in postmenopausal women in the recent times. Together with its sulfate version, DHEA-sulfate (DHEAS), it is the most abundant steroid in humans. The clitoris is an important component of the female sexual response, with its increased vascular response during sexual arousal that results in erection. Aims To elucidate the direct effects of DHEA/DHEAS on the vasomotor reactivity of the rabbit clitoral cavernosum. Methods Twenty New Zealand white female rabbits weighing approximately 2.5–3 kg were used in the study. Main Outcome Measures The contractile response of clitoral cavernous smooth muscle strips in response to phenylephrine (PE; 10 −9 –10 −4 M) were observed in rabbits. Additionally, DHEA/DHEAS effects on phenylephrine-induced contraction and/or acetylcholine-induced relaxation of phenylephrine-induced contraction were measured. Results DHEA/DHEAS did not elicit any remarkable response in the resting state. However, both DHEA and DHEAS evoked dose-dependent relaxations of PE-induced contraction. The contractile responses to high potassium were significantly decreased in the DHEA/DHEAS-pretreated strips, compared with the DHEA/DHEAS-nontreated strips. Additionally, contractions by Bay K 8644 (10 −7 –10 −6 M) treatment were also significantly inhibited by DHEA/DHEAS. DHEA-induced relaxation responses were stronger than DHEAS-induced relaxation responses. Various K channel blockers, tetraethylammonium (TEA; 1 mM, 10 mM), 4-aminopyridine (10 µM) and glibenclamide (10 µM) did not affect the DHEA/DHEAS-induced relaxation on muscle strips contracted by PE. Relaxation responses by acetylcholine or sodium nitroprusside (SNP) were not changed after DHEA/DHEAS pretreatment. Conclusions DHEA/DHEAS was found to induce a relaxation response in rabbit clitoral cavernosal smooth muscle, and this is thought to be mediated by direct inhibition of a voltage-dependent calcium channel. Lee SY, Myung SC, Lee MY, Kim TH, Kim SC, Kim KD, Park SH, and Kim WY. The effects of dehydroepiandrosterone (DHEA)/DHEA-sulfate (DHEAS) on the contraction responses of the clitoral cavernous smooth muscle from female rabbits. J Sex Med 2009;6:2653–2660.
- Published
- 2009
28. MP89-05 CHARACTERISTICS OF SEASONAL VARIATIONS IN NOCTURIA
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In Ho Chang, Jin Wook Kim, Byung Hoon Chi, Jae Duck Choi, Soon Chul Myung, Du Geon Moon, Seo Yeon Lee, Jung Hoon Kim, Tae-Hyoung Kim, Young Tae Moon, Kyung Do Kim, Min Su Kim, Se Young Choi, Jong Kyu Kwon, and Seung Hyun Ahn
- Subjects
business.industry ,Urology ,medicine ,Nocturia ,medicine.symptom ,business ,Demography - Published
- 2015
29. IONIC CURRENTS IN SINGLE SMOOTH MUSCLE CELLS OF THE HUMAN VAS DEFERENS
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Eun Mi Keum, S.O. Young Park, Soon Chul Myung, Moo Yeol Lee, and Sae Chul Kim
- Subjects
Adult ,Male ,medicine.medical_specialty ,Potassium Channels ,Calcium Channels, L-Type ,Urology ,In Vitro Techniques ,Membrane Potentials ,Calcium Channels, T-Type ,chemistry.chemical_compound ,Vas Deferens ,Internal medicine ,medicine ,Humans ,Patch clamp ,Ion channel ,Membrane potential ,Tetraethylammonium ,business.industry ,Proteolytic enzymes ,Vas deferens ,Muscle, Smooth ,Depolarization ,Electrophysiology ,Endocrinology ,medicine.anatomical_structure ,chemistry ,Potassium Channels, Voltage-Gated ,Biophysics ,Calcium Channels ,business ,Muscle Contraction - Abstract
Purpose: Smooth muscle cells of the vas deferens have an important role in carrying sperms to the exterior but little is known of their electrophysiological properties. We characterized the voltage-gated ion channel currents in single smooth muscle cells of the human vas deferens (HVSMCs). Materials and Methods: We observed contractile responses of 8 circular smooth muscle strips of the human vas deferens to a high concentration (10 mM) of tetraethylammonium. HVSMCs were isolated using proteolytic enzymes (collagenase and papain), and were used for an electro-physiological study using whole cell and inside-out patch clamp configurations. Results: The application of 10 mM tetraethylammonium induced rhythmic contractions of the strips. When HVSMCs were dialyzed with a KCl solution, step depolarizations of membrane potential evoked oscillatory outward K currents that were not inactivated. The large conductance Ca activated K (BK Ca ) and delayed rectifier components of the outward current were identified. The BK Ca channel showed a large single channel conductance (162.7 ± 13.2 pS with 5 mM K in the patch pipette). Two types of Ca currents were identified in the whole cell configuration. With a cell held at −50 mV an L-type Ca current was present during a depolarizing step pulse. From a holding potential of −90mV L-type and T-type Ca currents were elicited by depolarizing step pulses. Conclusions: HVSMCs have 2 (L and T) types of Ca channels and 2 types of K (BK Ca and delayed rectifier) channels. Voltage dependent changes of these ion channels and their interactions may be important in regulating vas contractility.
- Published
- 2004
30. Zinc Induces Lipopolysaccharide-Mediated Upregulation of Human β-defensin-2 in Human Prostate Epithelial Cells
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Min Su Kim, Soon Chul Myung, Jaehyouk Lee, Jun Hyun Han, and Hae Jong Kim
- Subjects
Lipopolysaccharide ,Urology ,Endocrinology, Diabetes and Metabolism ,chemistry.chemical_element ,Zinc ,Molecular biology ,Human prostate ,Psychiatry and Mental health ,chemistry.chemical_compound ,Endocrinology ,Reproductive Medicine ,chemistry ,Downregulation and upregulation ,β defensin 2 - Published
- 2017
31. 207 POLYMORPHISMS IN CYP17A1, CYP3A4 AND CYP3A43 GENES INVOLVED ANDROGEN PATHWAYS AS RISK FACTORS FOR PROSTATE CANCER IN KOREAN POPULATION
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Seung Ok Yang, Jun Hyun Han, Soon Chul Myung, Seung Wook Lee, and Yong Seong Lee
- Subjects
Oncology ,medicine.medical_specialty ,CYP3A4 ,medicine.drug_class ,Korean population ,business.industry ,Urology ,medicine.disease ,Androgen ,Prostate cancer ,CYP17A1 ,Internal medicine ,medicine ,business ,Gene - Published
- 2013
32. 581 HUMAN β DEFENSIN-2 MAY INHIBIT INTERNALIZATION OF BACILLUS CALMETTE-GUE′RIN IN BLADDER CANCER CELLS
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Yong Seong Lee, Young Tae Moon, Kyung Do Kim, Sang Hyup Lee, Jae Dong Chung, Soon Chul Myung, Seung Hyun Ahn, In Ho Chang, Tae-Hyoung Kim, and Jung Hoon Kim
- Subjects
Bacillus (shape) ,Bladder cancer ,biology ,business.industry ,Urology ,media_common.quotation_subject ,biology.organism_classification ,medicine.disease ,Microbiology ,β defensin 2 ,Medicine ,business ,Internalization ,media_common - Published
- 2013
33. Variants in the HEPSIN gene are associated with susceptibility to prostate cancer
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Soon-Chul Myung, Wonhee Kim, In Ho Chang, J H Han, and Hye-Ryoun Kim
- Subjects
PCA3 ,Oncology ,Male ,Cancer Research ,medicine.medical_specialty ,Genotype ,Urology ,Hepsin ,Prostatitis ,Single-nucleotide polymorphism ,Polymorphism, Single Nucleotide ,Cohort Studies ,Prostate cancer ,Asian People ,Risk Factors ,Internal medicine ,Medicine ,Humans ,Genetic Predisposition to Disease ,Genetic Association Studies ,Aged ,Neoplasm Staging ,Korea ,business.industry ,Serine Endopeptidases ,Prostatic Neoplasms ,Odds ratio ,Middle Aged ,medicine.disease ,Prostate-specific antigen ,Haplotypes ,Benign prostatic hyperplasia (BPH) ,business - Abstract
HEPSIN (HPN) gene is one of the most consistently overexpressed genes in patients with prostate cancer; furthermore, there is some evidence supporting an association between HPN gene variants and the risk of developing prostate cancer. In this study, sequence variants in the HPN gene were investigated to determine whether they were associated with prostate cancer risk in a Korean study cohort. We evaluated the association of 17 single-nucleotide polymorphisms (SNPs) in the HPN gene with prostate cancer risk and clinical characteristics (Gleason score and tumor stage) in Korean men (240 case subjects and 223 control subjects) using unconditional logistic regression. The statistical analysis suggested that three SNPs (rs45512696, rs2305745, rs2305747) were significantly associated with the risk of prostate cancer (odds ratio (OR)=2.22, P=0.04; OR=0.73, P=0.03; OR=0.76, P=0.05, respectively). The results of this study suggest that, in Korean men, some polymorphisms in the HPN gene might be associated with the risk of developing prostate cancer.
- Published
- 2012
34. 2301 INFLUENCE OF OBESITY ON 24-HOUR URINE CHEMISTRY STUDIES & RECURRENT UROLITHIASIS IN CHILDREN
- Author
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Young Tae Moon, Soon Chul Myung, In Ho Chang, Seung Hyun Ahn, Joonyoung Kim, Se Young Choi, and Kyung Do Kim
- Subjects
medicine.medical_specialty ,business.industry ,Urology ,Internal medicine ,medicine ,medicine.disease ,business ,Obesity ,24 h urine - Published
- 2012
35. 2009 THE IMPACT OF CHANGING TRENDS IN MEDICAL THERAPY ON SURGERY FOR BENIGN PROSTATIC HYPERPLASIA OVER TWO DECADES
- Author
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Soon Chul Myung, Se Young Choi, Seung Hyun Ahn, Kyung Do Kim, In Ho Chang, Young Tae Moon, and Joonyoung Kim
- Subjects
medicine.medical_specialty ,business.industry ,Urology ,medicine ,Hyperplasia ,medicine.disease ,business ,Medical therapy ,Surgery - Published
- 2012
36. 2067 PSA VELOCITY PER PROSTATE VOLUME: A NOVEL TOOL FOR PROSTATE BIOPSY PREDICTION
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Seung Hyun Ahn, In Ho Chang, Kyung Do Kim, Young Tae Moon, Soon Chul Myung, Joon Young Kim, and Se Young Choi
- Subjects
Urology - Published
- 2012
37. Metabolic syndrome, urine pH, and time-dependent risk of nephrolithiasis in Korean men without hypertension and diabetes
- Author
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Dong Min Lee, Tae-Hyoung Kim, Young Sun Kim, In Ho Chang, Soon Chul Myung, Yong Taec Lee, and Seung Hyun Ahn
- Subjects
Adult ,Male ,Risk ,medicine.medical_specialty ,Time Factors ,Urology ,Renal function ,Urine ,Urinalysis ,Nephrolithiasis ,Gastroenterology ,chemistry.chemical_compound ,Internal medicine ,medicine ,Diabetes Mellitus ,Humans ,Proportional Hazards Models ,Metabolic Syndrome ,Korea ,Proportional hazards model ,business.industry ,Confounding ,Hazard ratio ,Hydrogen-Ion Concentration ,Middle Aged ,medicine.disease ,Confidence interval ,Endocrinology ,chemistry ,Hypertension ,Uric acid ,Metabolic syndrome ,business ,Follow-Up Studies ,Glomerular Filtration Rate - Abstract
To examine the independent effect of metabolic syndrome (MS) on nephrolithiasis (NL) even with changes in MS status over time.From 2002-2003, 3872 men who were reexamined annually or biannually until 2009 were enrolled in the analysis and observed for development of NL. The examination included anthropometric measurements, biochemical measurement, and kidney ultrasonography (US). A standard Cox proportional hazards model and a time-dependent Cox model were used to calculate the adjusted hazard ratio in the NL model.After adjusting for age, baseline glomerular filtration rate, and uric acid level, MS at baseline was associated with a significantly increased risk of NL (HR, 1.771; 95% confidence interval, 1.157-2.711). MS over time as a time-dependent variable also predicted the development of NL (HR, 1.678; 95% CI, 1.151-2.447) after adjusted baseline covariate. After adjustment for potential confounding factors, there was a significant stepwise increase in risk of NL, with each additional MS trait compared with those with no traits of MS at baseline and follow-up. As the numbers of MS traits at baseline and follow-up increased, the urine pH of participants at baseline and follow-up decreased significantly (P.01). The prevalence of NL in participants with continual MS (6.6%) was higher than those with resolved MS, and continual MS was an independent factor to predict NL.Our findings suggest that MS is significantly associated with increased risk of developing urine acidification, even with changes in status of MS observed during follow-up.
- Published
- 2010
38. NS-398 (a selective cyclooxygenase-2 inhibitor) decreases agonist-induced contraction of the human ureter via calcium channel inhibition
- Author
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Soo Hyun Park, Shin Young Lee, June Hyun Han, Moo Yeol Lee, Soon Chul Myung, Tae-Hyoung Kim, and Young Tae Moon
- Subjects
Agonist ,Adult ,medicine.medical_specialty ,Contraction (grammar) ,medicine.drug_class ,Urology ,Muscle Relaxation ,Pharmacology ,In Vitro Techniques ,urologic and male genital diseases ,Potassium Chloride ,Contractility ,chemistry.chemical_compound ,Ureter ,Internal medicine ,medicine ,Humans ,Nitrobenzenes ,NS-398 ,Sulfonamides ,biology ,Cyclooxygenase 2 Inhibitors ,urogenital system ,business.industry ,Smooth muscle contraction ,3-Pyridinecarboxylic acid, 1,4-dihydro-2,6-dimethyl-5-nitro-4-(2-(trifluoromethyl)phenyl)-, Methyl ester ,Endocrinology ,medicine.anatomical_structure ,chemistry ,Celecoxib ,biology.protein ,Pyrazoles ,Cyclooxygenase ,Calcium Channels ,business ,medicine.drug ,Muscle Contraction - Abstract
Recently, it has been demonstrated that ureteral obstruction is associated with increased cyclooxygenase (COX)-2 expression and that selective COX-2 inhibitors provide potent analgesia with fewer side effects in patients with ureteral stones. Moreover, selective COX-2 inhibitors have been shown to decrease in vitro contractility of the human ureter. We aimed at evaluating the effects of the selective COX-2 inhibitor NS-398 on human ureteral smooth muscle contractility and compare its potency with that of nonselective COX inhibitors, COX-1 inhibitors, and other COX-2 inhibitors.Ureteral samples were obtained from human adult subjects undergoing radical nephrectomy. After isolating the upper ureteral strips, we analyzed the contractile responses of the ureteral strips to high potassium (KCl 35 mM) and Bay K 8644 and the relaxation responses of a nonspecific COX inhibitor (indomethacin), a COX-1 inhibitor (SC-560), and a COX-2 inhibitor (NS-398 and celecoxib) to KCl and Bay K 8644-induced contraction by measuring isometric tension.NS-398 produced dose-dependent (10⁻⁹-10⁻⁵ M) relaxation of KCl (35 mM)-precontracted strips of the ureter, whereas indomethacin (10⁻⁸-10⁻⁵ M) and SC-560 (10⁻⁹-10⁻⁵ M) did not. Both tonic and phasic contraction of Bay K 8644 (methyl-1,4-dihydro-2,6-dimethyl-3-nitro-4-2(trifluoromethylphenyl)pyridine-5-carboxylate) (1 μM) were significantly inhibited by NS-398 (10⁻⁵ M). Another selective COX-2 inhibitor, celecoxib, did not show potent inhibitory effects as strong as those of NS-398.We concluded that NS-398 reduces tonic or phasic contraction by inhibiting the action of voltage-dependent calcium channels. NS-398 has dual inhibitory effects with COX-2 inhibition on ureteral spasms due to renal or ureteral colic.
- Published
- 2010
39. 1688 THE INHIBITORY ROLE OF MELATONIN ON ISOLATED RAT URINARY BLADDER CONTRACTION: THE NOVEL PATHWAY FOR THE PHARMACOLOGICAL MANAGEMENT OF NOCTURIA
- Author
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In Ho Chang, Yong Wook Kwon, Moon Soo Ha, Byung Hoon Chi, Moo Yeol Lee, and Soon Chul Myung
- Subjects
Urology - Published
- 2010
40. 1720 PSAV CHANGE ACCORDING TO AN AGE GROUP AND ASSOCIATION BETWEEN PSAV AND INITIAL SERUM PSA LEVEL IN HEALTHY MEN
- Author
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In Ho Chang, June Hyun Han, Soon Chul Myung, Kyoung Won Kwak, Yong Taec Lee, Sang Wook Park, Seung Hyun Ahn, and Nak Young Choi
- Subjects
medicine.medical_specialty ,business.industry ,Urology ,Internal medicine ,medicine ,Association (psychology) ,business - Published
- 2010
41. 2131 RELATIONSHIP BETWEEN INSULIN RESISTANCE, OBESITY AND SERUM PROSTATE-SPECIFIC ANTIGEN LEVELS IN HEALTHY MEN
- Author
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June Hyun Han, Yong Taec Lee, Sang Wook Park, Nak Young Choi, Seong Hak Bang, Kyoung Won Kwak, Seung Hyun Ahn, In Ho Chang, Soon Chul Myung, and Ji Hyeong Yu
- Subjects
Urology - Published
- 2010
42. The effect of endothelin-1 on the production of interleukin-6 in cultured human detrusor smooth muscle cells, and the effect of interleukin-6 on the contractile response of bladder smooth muscle strips from rats
- Author
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Soon Chul Myung, June Hyun Han, and Moo Yeol Lee
- Subjects
Detrusor muscle ,medicine.medical_specialty ,Urology ,Indomethacin ,Myocytes, Smooth Muscle ,Urinary Bladder ,Enzyme-Linked Immunosorbent Assay ,Bethanechol ,Rats, Sprague-Dawley ,Internal medicine ,Muscarinic acetylcholine receptor ,Cystitis ,medicine ,Myocyte ,Animals ,Humans ,Cyclooxygenase Inhibitors ,RNA, Messenger ,Cells, Cultured ,Dose-Response Relationship, Drug ,Endothelin-1 ,business.industry ,Interleukin-6 ,Reverse Transcriptase Polymerase Chain Reaction ,Smooth muscle contraction ,Bridged Bicyclo Compounds, Heterocyclic ,Endothelin 1 ,Rats ,Endocrinology ,medicine.anatomical_structure ,Hydrazines ,Fatty Acids, Unsaturated ,Sodium nitroprusside ,business ,Acetylcholine ,medicine.drug ,Muscle Contraction - Abstract
OBJECTIVE To determine the effect of endothelin-1 (ET-1) on the production of interleukin-6 (IL-6) in cultured human detrusor smooth muscle cells (HDSMCs) and the effect of IL-6 on the contractile response of bladder smooth muscle strips from rats. MATERIALS AND METHODS The expression of IL-6 mRNA and production of IL-6 protein in cultured HDSMCs treated with the different concentrations of ET-1 were assayed by reverse transcriptase-polymerase chain reaction and specific enzyme-linked immunosorbent assay, respectively. The strips from Sprague-Dawley rats were either untreated or treated with 1 ng/mL of IL-6 for 60 min. Using increasing cumulative concentrations of acetylcholine (ACh), bethanechol (BCh), or sodium nitroprusside, we assessed the concentration-contraction or the relaxation responses. In cystitis-induced strips, change of contractions induced by noradrenaline (NA) with or without treatment of IL-6 were assessed. The IL-6-treated strips were incubated for 30 min in the presence or absence indomethacin or SQ29548, and then the effects on ACh- or BCh-induced contractions were measured. RESULTS The expression of IL-6 mRNA and the production of IL-6 protein on the cultured HDSMCs pretreated by ET-1 were significantly higher than in the control (P
- Published
- 2009
43. Clinical significance of the leptin and leptin receptor expressions in prostate tissues
- Author
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Shin Young Lee, Mi Kyung Kim, Soon Chul Myung, Tae-Hyoung Kim, Jung Hoon Kim, and Young Sun Kim
- Subjects
Leptin ,Male ,medicine.medical_specialty ,Urology ,Prostatic Hyperplasia ,urologic and male genital diseases ,Body Mass Index ,Prostate cancer ,Prostate ,Internal medicine ,medicine ,Humans ,Clinical significance ,Neoplasm Metastasis ,Receptor ,Aged ,Leptin receptor ,business.industry ,digestive, oral, and skin physiology ,Prostatic Neoplasms ,General Medicine ,Hyperplasia ,Middle Aged ,medicine.disease ,Immunohistochemistry ,Endocrinology ,medicine.anatomical_structure ,Disease Progression ,Receptors, Leptin ,business ,hormones, hormone substitutes, and hormone antagonists ,Biomarkers - Abstract
Aim: To evaluate the expression of leptin and leptin receptor in benign prostatic hyperplasia (BPH) and prostate cancer (PCa), and to investigate whether they are associated with the development and progression of PCa. Methods: Immunohistochemical staining was performed to examine the expression of leptin and leptin receptor in BPH and PCa. PCa was divided into three groups: localized PCa, locally advanced PCa and metastatic PCa. The positive staining was identified and the percentage of the positive staining was graded. We also assessed the relationship between both the Gleason score and body mass index (BMI) and PCa. Results: The percentage of the leptin expression in PCa was significantly higher than that in BPH (P < 0.01). For the PCa group, the expressed levels of leptin showed a considerable correlation with localized PCa and metastatic PCa (P < 0.05). Leptin receptor, however, did not reveal a definite difference between BPH and PCa. The expression of leptin indicated a significant difference between well-differentiated PCa (Gleason score ≤ 6) and poorly differentiated PCa (Gleason score 8–10) (P < 0.05). The relation between the leptin expression level in PCa and the BMI was not remarkable (P= 0.447). Conclusion: Our results suggest that leptin might have a promoting effect on the carcinogenesis and progression of PCa.
- Published
- 2008
44. The clinical significance in healthy men of the association between obesity related plasma hemodilution and tumor marker concentration
- Author
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Tae-Hyoung Kim, In Ho Chang, Seung Hyun Ahn, Young Sun Kim, June Hyun Han, and Soon Chul Myung
- Subjects
Adult ,Male ,medicine.medical_specialty ,CA-19-9 Antigen ,Urology ,Population ,Sensitivity and Specificity ,Body Mass Index ,Cohort Studies ,chemistry.chemical_compound ,Carcinoembryonic antigen ,Reference Values ,Internal medicine ,Biomarkers, Tumor ,Medicine ,Humans ,Mass Screening ,Obesity ,education ,Mass screening ,Early Detection of Cancer ,Tumor marker ,Retrospective Studies ,Creatinine ,education.field_of_study ,Analysis of Variance ,Hemodilution ,Blood Volume ,biology ,business.industry ,Prostate-Specific Antigen ,Carcinoembryonic Antigen ,Prostate-specific antigen ,Endocrinology ,chemistry ,Multivariate Analysis ,biology.protein ,Linear Models ,CA19-9 ,alpha-Fetoproteins ,business ,Body mass index - Abstract
We investigated the association between body mass index and the concentration of tumor markers including carcinoembryonic antigen, alpha-fetoprotein, the carbohydrate antigen 19-9 and prostate specific antigen, as well as the association between body mass index changes and tumor marker concentration changes in a population of healthy men.We evaluated data on 8,776 men screened for tumor markers (carcinoembryonic antigen, alpha-fetoprotein, carbohydrate antigen 19-9 and prostate specific antigen) at least 3 times annually during an annual examination from 2001 to 2007. We assessed the tumor marker test findings for a trend in the age, alanine aminotransferase and creatinine adjusted tumor marker concentration by body mass index. We used multivariate regression analysis to determine whether a change in body mass index was associated with a tumor marker concentration change over time using calculated tumor markers, body mass index, creatinine and alanine aminotransferase concentration change per year.After adjusting for age, creatinine and alanine aminotransferase a higher body mass index was associated with lower prostate specific antigen (p for trend0.001), carcinoembryonic antigen (p for trend0.001) and carbohydrate antigen 19-9 (p for trend0.001). On multivariate regression analysis each 1 kg/m(2) of body mass index gain per year was associated with a -0.011 ng/ml change in prostate specific antigen concentration, a -0.030 ng/ml change in carcinoembryonic antigen concentration and a -0.192 IU/ml change in carbohydrate antigen 19-9 concentration per year.In this cohort of healthy men hemodilution from increased plasma volume may be responsible for the observed decreased tumor marker concentration in men with a higher body mass index. In addition, an increase in body mass index may predict a lower tumor marker concentration in an individual.
- Published
- 2008
45. Association between serum prostate-specific antigen level, liver function tests and lipid profile in healthy men
- Author
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Oh Jung Kwon, Sang Wook Park, Seong Hak Bang, June Hyun Han, Soon Chul Myung, Hyun Woo Kim, Nak Young Choi, In Ho Chang, and Seung Hyun Ahn
- Subjects
Adult ,Blood Glucose ,Male ,medicine.medical_specialty ,Urology ,Health Status ,Body Mass Index ,Cohort Studies ,chemistry.chemical_compound ,Young Adult ,Liver Function Tests ,Risk Factors ,Internal medicine ,medicine ,Humans ,Univariate analysis ,Creatinine ,medicine.diagnostic_test ,Cholesterol ,business.industry ,Age Factors ,Prostatic Neoplasms ,Middle Aged ,Prostate-Specific Antigen ,Lipids ,Prostate-specific antigen ,Endocrinology ,chemistry ,Liver function ,Lipid profile ,Liver function tests ,business ,Body mass index - Abstract
OBJECTIVE To assess the association between serum prostate-specific antigen (PSA) level and age, liver function tests (LFTs) including alkaline phosphatase (ALP), total bilirubin (TB), lipid profile (total cholesterol, TC, triglycerides, TG, high-density lipoprotein, HDL) and fasting blood sugar (FBS), and to determine the significant factors for predicting the serum PSA level in men with a low risk of having prostate cancer. SUBJECTS AND METHODS In all, 38 157 healthy male employees of the Korea Electric Power Corporation (KEPCO) who were aged
- Published
- 2008
46. Contractile changes of the clitoral cavernous smooth muscle in female rabbits with experimentally induced overactive bladder
- Author
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Moo-Yeol Lee, Shin Young Lee, Soo Hyun Park, Soon-Chul Myung, Sae-Chul Kim, and Seung-Hee Yum
- Subjects
Pyridines ,Endocrinology, Diabetes and Metabolism ,Muscle Relaxation ,Vasodilator Agents ,Isometric exercise ,urologic and male genital diseases ,Clitoris ,Muscle, Smooth, Vascular ,Phenylephrine ,Endocrinology ,Piperidines ,Urinary bladder ,Vasomotor ,Endothelin-1 ,Muscle Relaxants, Central ,Psychiatry and Mental health ,Muscle relaxation ,medicine.anatomical_structure ,Overactive bladder ,Models, Animal ,Female ,Rabbits ,Endothelin receptor ,Adrenergic alpha-Agonists ,Oligopeptides ,medicine.drug ,Nitroprusside ,medicine.medical_specialty ,Urology ,Peptides, Cyclic ,Internal medicine ,Isometric Contraction ,medicine ,Animals ,Antihypertensive Agents ,Dose-Response Relationship, Drug ,business.industry ,Urinary Bladder, Overactive ,3-Pyridinecarboxylic acid, 1,4-dihydro-2,6-dimethyl-5-nitro-4-(2-(trifluoromethyl)phenyl)-, Methyl ester ,medicine.disease ,Amides ,Acetylcholine ,Calcium Channel Agonists ,Reproductive Medicine ,Potassium ,business - Abstract
Recently, growing clinical evidence has suggested that sexual dysfunction is more prevalent in women with overactive bladder (OAB). Aims. However, there has been no basic research to clarify the relationship between OAB and female sexual dysfunction. Therefore, we investigated this issue using a rabbit model of OAB.Twenty-seven New Zealand white female rabbits were randomly divided into the OAB and control groups.The contractile responses of clitoral cavernous strips to K(+), phenylephrine (PE), Bay K 8644, and endothelin (ET)-1, and the relaxation responses of acetylcholine (ACh), sodium nitroprusside (SNP), and Y-27632 to PE-induced contraction by measuring isometric tension. Results. The contractile responses to K(+), PE, Bay K 8644, and ET-1 were significantly more increased in the OAB group in a dose-dependant manner than in the control group (P0.05), and the responses to ET-1 were more prominent than those to the remaining substances (P0.01). The increased contractile responses to ET-1 were blocked by BQ123 (ET(A) receptor antagonist) but not by BQ788 (ET(B) receptor antagonist). Clitoral cavernosal strips from the OAB group were more difficult to relax than those from the control group in terms of ACh- and SNP-induced relaxation (P0.05). The Y-27632-induced relaxant responses to PE- and ET-1-induced contraction were less prominent in the OAB group than in the control group. CONCLUSIONS; The results of this study provide evidence that female OAB may deteriorate clitoral engorgement, which is associated with a greater force generation by increased calcium sensitization and subsequently decreased of relaxation. The activation of ET and Rho-kinase system may be crucial to negatively effect the clitoral smooth muscle relaxation in experimentally induced OAB animal model. But whether these vasomotor effects are revived in human clitoris is still debatable.
- Published
- 2008
47. Relationship between serum prostate-specific antigen levels and components of metabolic syndrome in healthy men
- Author
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Nak Young Choi, Seung Hyun Ahn, In Ho Chang, Seong Hak Bang, June Hyun Han, Soon Chul Myung, Oh Jung Kwon, Tae-Hyoung Kim, and Young Woo Jin
- Subjects
Adult ,Male ,Metabolic Syndrome ,Univariate analysis ,medicine.medical_specialty ,business.industry ,Urology ,Middle Aged ,Prostate-Specific Antigen ,medicine.disease ,Obesity ,Prostate cancer ,Prostate-specific antigen ,Endocrinology ,Blood pressure ,Internal medicine ,Medicine ,Humans ,Metabolic syndrome ,business ,Body mass index ,Lipoprotein - Abstract
To assess the correlation between age, body mass index, systolic and diastolic blood pressure (BP), triglycerides, high-density lipoprotein (HDL), and fasting blood glucose (FBG) and the serum prostate-specific antigen (PSA) level and to determine the significant factors for predicting the serum PSA level in men with a low risk of prostate cancer.A total of 38 356 healthy male employees of the Korea Electric Power Corporation who were60 years old and had a serum PSA level of4 ng/mL were enrolled in this study from January 2002 to December 2006. Their BP, body weight, and body height were measured, and biochemical analyses of FBG, triglycerides, HDL, and serum PSA were performed.The mean age +/- standard deviation was 44.38 +/- 7.90 years; the mean serum PSA level was 0.89 +/- 0.51 ng/mL; and the incidence of metabolic syndrome was 25.8%. On univariate analysis, significant correlations were noted between the serum PSA level and body mass index, diastolic BP, HDL, and FBG (P.05). Multiple logistic regression analyses using 4 percentiles (10th, 25th, 75th, and 90th percentile) of the serum PSA level revealed trends for a positive association between older age and diastolic BP and the serum PSA level. The body mass index, HDL, and FBG correlated negatively with the serum PSA level.These results suggest that the serum PSA level is significantly influenced by age and some components of the metabolic syndrome (obesity, diastolic BP, HDL, and FBG).
- Published
- 2007
48. Association between cytochrome CYP17A1, CYP3A4, and CYP3A43 polymorphisms and prostate cancer risk and aggressiveness in a Korean study population
- Author
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Soon Chul Myung, Shin Young Lee, Jun Hyun Han, Hae Jong Kim, and Yong Seong Lee
- Subjects
Male ,Linkage disequilibrium ,CYP3A4 ,Genotype ,Urology ,Single-nucleotide polymorphism ,Biology ,lcsh:RC870-923 ,Polymorphism, Single Nucleotide ,Severity of Illness Index ,Linkage Disequilibrium ,Prostate cancer ,Risk Factors ,Republic of Korea ,CYP17A1 ,medicine ,Cytochrome P-450 CYP3A ,Humans ,Genetic Predisposition to Disease ,genetics ,International HapMap Project ,Aged ,Genetics ,Haplotype ,androgens ,CYP3A43 ,prostatic neoplasms ,Prostatic Neoplasms ,Steroid 17-alpha-Hydroxylase ,General Medicine ,Odds ratio ,Middle Aged ,lcsh:Diseases of the genitourinary system. Urology ,medicine.disease ,Haplotypes ,Case-Control Studies ,Disease Progression ,Population study ,Original Article ,Aryl Hydrocarbon Hydroxylases - Abstract
In this study, we evaluated genetic variants of the androgen metabolism genes CYP17A1, CYP3A4, and CYP3A43 to determine whether they play a role in the development of prostate cancer (PCa) in Korean men. The study population included 240 pathologically diagnosed cases of PCa and 223 age-matched controls. Among the 789 single-nucleotide polymorphism (SNP) database variants detected, 129 were reported in two Asian groups (Han Chinese and Japanese) in the HapMap database. Only 21 polymorphisms of CYP17A1, CYP3A4, and CYP3A43 were selected based on linkage disequilibrium in Asians (r2 = 1), locations (SNPs in exons were preferred), and amino acid changes and were assessed. In addition, we performed haplotype analysis for the 21 SNPs in CYP17A1, CYP3A4, and CYP3A43 genes. To determine the association between genotype and haplotype distributions of patients and controls, logistic analyses were carried out, controlling for age. Twelve sequence variants and five major haplotypes were identified in CYP17A1. Five sequence variants and two major haplotypes were identified in CYP3A4. Four sequence variants and four major haplotypes were observed in CYP3A43. CYP17A1 haplotype-2 (Ht-2) (odds ratio [OR], 1.51; 95% confidence interval [CI], 1.04-2.18) was associated with PCa susceptibility. CYP3A4 Ht-2 (OR: 1.87; 95% CI: 1.02-3.43) was associated with PCa metastatic potential according to tumor stage. rs17115149 (OR: 1.96; 95% CI: 1.04-3.68) and CYP17A1 Ht-4 (OR: 2.01; 95% CI: 1.07-4.11) showed a significant association with histologic aggressiveness according to Gleason score. Genetic variants of CYP17A1 and CYP3A4 may play a role in the development of PCa in Korean men.
- Published
- 2015
49. THE CLINICAL SIGNIFICANCE OF SERUM AND URINE CYTOKINE IN PATIENTS WITH ACUTE UNCOMPLICATED PYELONEPHRITIS
- Author
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In Ho Chang, Seung Young Oh, Kyung Do Kim, Young Tae Moon, Tae-Hyoung Kim, Shin Young Lee, Woo Hyun Chung, Jong Kyou Kwon, Soon Chul Myung, and Seung Hyun Ahn
- Subjects
Urology - Published
- 2009
50. HNF1B Polymorphism Associated With Development of Prostate Cancer in Korean Patients
- Author
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June Hyun Han, Soon Chul Myung, Joon Seol Bae, Kyung Do Kim, In Ho Chang, Jaehyouk Lee, Shin Young Lee, Hyoung Doo Shin, Wonyong Kim, and Hae Jong Kim
- Subjects
Male ,Risk ,Oncology ,medicine.medical_specialty ,Urology ,Single-nucleotide polymorphism ,Disease ,Lower risk ,Polymorphism, Single Nucleotide ,Prostate cancer ,Internal medicine ,Odds Ratio ,Humans ,Medicine ,Aged ,Hepatocyte Nuclear Factor 1-beta ,Genetic association ,Aged, 80 and over ,Korea ,Polymorphism, Genetic ,business.industry ,Haplotype ,Prostatic Neoplasms ,Odds ratio ,Middle Aged ,HNF1B ,medicine.disease ,Haplotypes ,Case-Control Studies ,Regression Analysis ,business - Abstract
Objective To identify whether the genetic variations in HNF1B are associated with the development of prostate cancer in Korean patients. Genome-wide association studies have found the HNF1B gene at 17q12 to be a major causal gene for the risk of prostate cancer. Methods We evaluated the association of 47 single nucleotide polymorphisms (SNPs) in the HNF1B gene with prostate cancer risk and clinical characteristics (Gleason score and tumor stage) in Korean men (240 case subjects and 223 control subjects) using unconditional logistic regression analysis. Results Of the 47 SNPs, 14 were associated with prostate cancer risk ( P = .002-.02); 9 SNPs were associated with a lower risk of prostate cancer (odds ratio 0.67-0.71, P = .005-.05), and 5 SNPs were associated with a greater risk of disease (odds ratio 1.49-1.51, P = .002-.02). In an analysis involving only patients with prostate cancer, 1 SNP (rs11868513) in the HNF1B gene was more frequent in patients with tumors with a greater stage than in those with a lower tumor stage. Two SNPs (rs4430796 and rs2074429) and 1 haplotype ( Block3_ht1 ) were more frequent in patients with Gleason score of ≥7 than in those with Gleason score Conclusion As in studies from other populations, our findings indicate that HNF1B is also associated with prostate cancer risk in the Korean population.
- Published
- 2011
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