1.Gender and Menopause Impact on Recurrence and Cancer-Specific Mortality in Bladder Cancer After Radical Cystectomy: A Retrospective Cohort Study
Jee Soo PARK ; Won Sik JANG ; Jieun HEO ; Won Sik HAM ; Kyung Hwan KIM ; Jong Kil NAM ; Bum-Jin LIM ; Bum Sik HONG ; Wook NAM ; Sangchul LEE ; Jong Jin OH ; Seung Hwan JEONG ; Ja Hyeon KU ; Tae Il NOH ; Sung Gu KANG ; Seok Ho KANG ; Yun-Sok HA ; Tae Gyun KWON ; Tae‑Hwan KIM ; Jongchan KIM ; Geehyun SONG ; Ho Kyung SEO ; Wan SONG ; Hyun Hwan SUNG ; Byong Chang JEONG
Journal of Urologic Oncology 2025;23(1):88-93
Purpose:
Although bladder cancer occurs three to 4 times more frequently in men than in women, the relative number of deaths compared to incidence is higher in women, suggesting that women have a worse prognosis than men. Emerging evidence indicates that the activity of the sex steroid hormone pathway may play a role in bladder cancer development, with demonstrations that both androgens and estrogens have biological effects on bladder cancer in vitro and in vivo. This study investigates the influence of sex and menopausal status on recurrence and cancer-specific death (CSD) in bladder cancer patients undergoing radical cystectomy (RC).
Materials and Methods:
This retrospective analysis included 3,913 patients from the Korean Bladder Cancer Study Group Database who underwent RC between 2010 and 2019. Patients were categorized based on gender and menopausal status (≤50 years: premenopausal; >50 years: postmenopausal). Pathological factors, neoadjuvant chemotherapy, recurrence, and CSD rates were analyzed using chi-square and Fisher exact tests.
Results:
Among the 3,913 patients, 400 (10.2%) were female. Premenopausal females exhibited significantly lower recurrence rates (28.6%) compared to postmenopausal females (45.7%). CSD rates were similarly reduced in premenopausal females (12.0% vs. 22.2% in postmenopausal females). No significant sex differences in recurrence or CSD were observed among premenopausal patients. Pathological T stage, nodal status, and lymphovascular invasion were significantly associated with recurrence in males, while nodal status alone was significant in females. Neoadjuvant chemotherapy was significantly more frequently administered to male patients under the age of 50, while no difference was observed in the administration of neoadjuvant chemotherapy among female patients based on menopausal status.
Conclusion
Hormonal changes associated with menopause significantly influence bladder cancer outcomes in women. Premenopausal hormonal environments seem protective, underscoring the need for further research into hormone-driven mechanisms in bladder cancer.
2.Impact of Extended Lymph Node Dissection on Survival Outcomes in Patients With Bladder Cancer and Upper Tract Urothelial Carcinoma: A Multicenter Retrospective Study
Jiwoong YU ; Wook NAM ; Kyung Hwan KIM ; Yun-Sok HA ; Geehyun SONG ; Ho Kyung SEO ; Jong Kil NAM ; Tae Il NOH ; Seok Ho KANG ; Seung-Hwan JEONG ; Ja Hyeon KU ; Jong Jin OH ; Ji Eun HEO ; Won Sik HAM ; Joongwon CHOI ; Bumjin LIM ; Bumsik HONG ; Wan SONG ; Minyong KANG ; Hwang Gyun JEON ; Seong Il SEO ; Seong Soo JEON ; Hyun Hwan SUNG ; Byong Chang JEONG ;
Journal of Urologic Oncology 2025;23(1):79-87
Purpose:
To evaluate whether extended pelvic lymph node dissection (PLND) improves survival outcomes compared with standard PLND in patients with bladder cancer (BCa) undergoing radical cystectomy (RC), and to assess its potential benefits in patients with prior or concurrent radical nephroureterectomy (p/cRNU).
Materials and Methods:
A multicenter analysis included 2202 patients with BCa undergoing RC with standard or extended PLND at 11 tertiary centers from 2003 to 2023. Following propensity score matching, 659 pairs (n=1,318), including 128 patients with p/cRNU, were analyzed. Recurrence-free survival (RFS) was the primary outcome, while overall survival (OS), cancer-specific survival (CSS), and readmission rates were secondary outcomes. Survival analyses performed using Kaplan-Meier methods and clustered Cox models.
Results:
Extended PLND yielded significantly more lymph nodes than standard PLND (median: 27.0 vs. 17.0, p<0.001) but did not improve RFS, CSS, or OS in the overall cohort (all p>0.05). Extended PLND increased readmission rates (28.4% vs. 20.2%, p=0.001) and readmission risk (odds ratio, 1.57; 95% confidence interval [CI], 1.15–2.16, p=0.005). However, subgroup analysis revealed extended PLND significantly improved RFS in patients with p/cRNU (hazard ratio, 0.54; 95% CI, 0.38–0.77; p<0.001).
Conclusion
Extended PLND does not provide survival benefits for overall patient population and increases readmission risk but significantly improves RFS in patients with p/cRNU. Tailoring PLND extent based on upper tract disease status is recommended.
3.Insulin resistance is associated with incident chronic kidney disease in population with normal renal function
Su Hyun SONG ; Young Jin GOO ; Tae Ryom OH ; Sang Heon SUH ; Hong Sang CHOI ; Chang Seong KIM ; Seong Kwon MA ; Soo Wan KIM ; Eun Hui BAE
Kidney Research and Clinical Practice 2025;44(3):491-499
Insulin resistance is prevalent in chronic kidney disease and may accelerate the progression of chronic kidney disease. This study aimed to investigate whether insulin resistance is associated with the development of incident chronic kidney disease in a population with normal renal function. Methods: A total of 3,331 participants from a community-based cohort with normal renal function were prospectively analyzed. We determined the relationship of insulin resistance indices with the incident chronic kidney disease using the Cox proportional hazard model and Kaplan-Meier survival analysis. Results: During a mean follow-up of 11.03 ± 4.22 years, incident chronic kidney disease occurred in 414 participants (12.4%). The high homeostasis model assessment-insulin resistance level group had an increased risk of incident chronic kidney disease (hazard ratio [HR], 1.40; 95% confidence interval [CI], 1.13–1.74; p = 0.002) compared to the normal group after adjustment for age, sex, history of hypertension, body mass index, total cholesterol, alcohol drinking status, smoking status, and baseline estimated glomerular filtration rate. The risk of incident chronic kidney disease also increased with the lower quantitative insulin sensitivity check index level (HR, 0.62; 95% CI, 0.41–0.92; p = 0.02) and higher leptin-adiponectin ratio level (HR, 1.23; 95% CI, 1.06–1.42; p = 0.006). Conclusion: Higher insulin resistance indices are associated with the incidence of chronic kidney disease. Our data suggest that increased insulin resistance may be involved in the development of incident chronic kidney disease in a population with normal renal function.
4.Early single session of hyperbaric oxygen therapy mitigates renal apoptosis in lipopolysaccharides-induced endotoxemia in rats
Hyoung Youn LEE ; In Jin KIM ; Hong Sang CHOI ; Yong Hun JUNG ; Kyung Woon JEUNG ; Najmiddin MAMADJONOV ; Seong Kwon MA ; Soo Wan KIM ; Eun Hui BAE
Kidney Research and Clinical Practice 2025;44(5):776-787
Sepsis-associated acute kidney injury (SA-AKI) is a prominent sepsis complication, often resulting in adverse clinical outcomes. Hyperbaric oxygen therapy (HBOT), known for its anti-inflammatory characteristics, antioxidant effects, and ability to deliver high oxygen tension to hypo-perfused tissues, offers potential benefits for SA-AKI. This study investigated whether HBOT improved renal injury in sepsis and elucidated its underlying mechanisms. Methods: A lipopolysaccharide (LPS)-induced endotoxemia model was established using 8-week-old C57BL/6 mice. Thirty minutes post-LPS administration, a group of mice underwent HBOT at a 2.5 atmospheric pressure absolute with 100% oxygen for 60 minutes. After 24 hours, all mice were euthanized for measurements. Results: Our results demonstrated that HBOT effectively mitigated renal tubular cell apoptosis. Additionally, HBOT significantly reduced phosphorylated p53 proteins and cytochrome C levels, suggesting that HBOT may attenuate renal apoptosis by impeding p53 activation and cytochrome C release. Notably, HBOT preserved manganese-dependent levels of superoxide dismutase, an antioxidant enzyme, compared to the LPS group. Furthermore, transforming growth factor beta (TGF-β)/Smad4 and alpha smooth muscle actin expressions were significantly reduced in the LPS + HBOT group. Conclusion: An early single session of HBOT exhibited renoprotective effects in LPS-induced endotoxemia mice models by suppressing p53 activation and cytochrome C levels to mitigate apoptosis. The observed TGF-β decrease, downstream Smad expression reduction, and antioxidant capacity preservation following HBOT may contribute to these effects.
5.Systematic metabolomics study in the serum and urine of a mouse model of Fabry disease
Chang Seong KIM ; Songjin OH ; Moongi JI ; Byeongchan CHOI ; Tae Ryom OH ; Sang Heon SUH ; Hong Sang CHOI ; Eun Hui BAE ; Seong Kwon MA ; Man-Jeong PAIK ; Soo Wan KIM
Kidney Research and Clinical Practice 2025;44(5):763-775
Fabry disease (FD) is an X-linked lysosomal disorder caused by α-galactosidase A enzyme activity deficiency. Although glycosphingolipid analogs have been identified in the plasma or urine of patients with FD, there is a limited understanding of altered metabolomics profiles beyond the globotriaosylceramide accumulation in FD. Methods: Metabolomics study was performed for monitoring of biomarker and altered metabolism related with disease progression in serum and urine from male α-galactosidase A knockout mice and age-matched wild-type mice at 20 and 40 weeks. Profiling analysis for metabolites, including organic acids, amino acids, fatty acids, kynurenine pathway metabolites, and nucleosides in the serum and urine was performed using gas chromatography-tandem mass spectrometry and liquid chromatography-tandem mass spectrometry combined with star symbol patterns and partial least squares discriminant analysis (PLS-DA). Results: A total of 27 and 23 metabolites from the serum and urine of FD mice were distinguished from those of wild-type mice, respectively, based on p-value (<0.05) and variable importance in projection scores (>1.0) of PLS-DA. In the serum, metabolites of the glutathione, glutathione disulfide, citrulline, and kynurenine pathways that are related to oxidative stress, nitric oxide biosynthesis, and inflammation were increased, whereas those involved in pyruvate and tyrosine metabolism and the tricarboxylic acid cycle were altered in the 20- and 40-week-old urine of FD model mice. Conclusion: Altered metabolic signatures associated with disease progression by oxidative stress, inflammation, nitric oxide biosynthesis, and immune regulation in the early and late stages of FD.
6.Anastomosing hemangioma masquerading as renal cell carcinoma in a transplanted kidney:a case report
Hong Sung JUNG ; Ho Kyun LEE ; Sung Sun KIM ; Soo Wan KIM ; Soo Jin Na CHOI
Clinical Transplantation and Research 2025;39(4):384-388
Anastomosing hemangioma (AH) is an exceptionally rare benign vascular neoplasm that can closely mimic renal cell carcinoma (RCC) on radiologic and histopathologic evaluation. We report a 63-year-old male kidney transplant recipient who developed a small enhancing renal mass during pretransplant assessment for a second kidney transplantation. The patient had received a deceased donor kidney transplantation in April 1994 and resumed maintenance hemodialysis in April 2025 due to chronic allograft failure. During evaluation for a planned living donor kidney transplantation from his son, abdominal contrast-enhanced computed tomography revealed a 1.4 cm well-circumscribed enhancing mass in the upper pole of the transplanted kidney, highly suspicious for RCC. Magnetic resonance imaging demonstrated a T2 hyperintense lesion with heterogeneous and delayed enhancement, and positron emission tomography-computed tomography showed no hypermetabolic uptake or metastasis. Transplant nephrectomy was performed to exclude malignancy. Histopathologic examination revealed anastomosing capillary-sized vascular channels lined by bland endothelial cells without atypia, consistent with AH. Immunohistochemical staining was positive for CD34 and ERG, confirming endothelial differentiation. This case emphasizes the diagnostic challenge of distinguishing AH from RCC in transplant recipients and highlights the importance of accurate pathologic diagnosis to prevent unnecessary delay in subsequent kidney transplantation.
7.Clinical practice recommendations for the use of next-generation sequencing in patients with solid cancer: a joint report from KSMO and KSP
Miso KIM ; Hyo Sup SHIM ; Sheehyun KIM ; In Hee LEE ; Jihun KIM ; Shinkyo YOON ; Hyung-Don KIM ; Inkeun PARK ; Jae Ho JEONG ; Changhoon YOO ; Jaekyung CHEON ; In-Ho KIM ; Jieun LEE ; Sook Hee HONG ; Sehhoon PARK ; Hyun Ae JUNG ; Jin Won KIM ; Han Jo KIM ; Yongjun CHA ; Sun Min LIM ; Han Sang KIM ; Choong-Kun LEE ; Jee Hung KIM ; Sang Hoon CHUN ; Jina YUN ; So Yeon PARK ; Hye Seung LEE ; Yong Mee CHO ; Soo Jeong NAM ; Kiyong NA ; Sun Och YOON ; Ahwon LEE ; Kee-Taek JANG ; Hongseok YUN ; Sungyoung LEE ; Jee Hyun KIM ; Wan-Seop KIM
Journal of Pathology and Translational Medicine 2024;58(4):147-164
In recent years, next-generation sequencing (NGS)–based genetic testing has become crucial in cancer care. While its primary objective is to identify actionable genetic alterations to guide treatment decisions, its scope has broadened to encompass aiding in pathological diagnosis and exploring resistance mechanisms. With the ongoing expansion in NGS application and reliance, a compelling necessity arises for expert consensus on its application in solid cancers. To address this demand, the forthcoming recommendations not only provide pragmatic guidance for the clinical use of NGS but also systematically classify actionable genes based on specific cancer types. Additionally, these recommendations will incorporate expert perspectives on crucial biomarkers, ensuring informed decisions regarding circulating tumor DNA panel testing.
8.Analysis of the Home Meal Replacement Consumption Behavior of Thai by Food Consumption Value
Seung Gyun CHOI ; Ju Hyun PARK ; Wan Soo HONG
Journal of the Korean Dietetic Association 2024;30(4):267-281
This study aims to provide basic data for developing home meal replacement (HMR) products and establishing marketing strategies in Thailand. A survey was conducted targeting Thai consumers who have experience using HMR regularly. The food consumption values were used to segment the Thai consumer market, and the differences in HMR purchase behavior were analyzed according to segment. Thai consumers were divided into three types: high, medium, and low interest in food habits. The main reasons for using HMR among Thai consumers were time-saving, convenience, and cost-effectiveness, with a strong preference for products with high convenience. Among the HMR selection attributes, items such as quality, expiration date, hygiene, safety, taste, nutrition, and freshness are generally important factors for consumers. Among the HMR selection attributes, the items that require improvement first were identified most frequently in the high-interest food lifestyle group and include quality, quantity, additives, ingredients, expiration date, and nutrients. This study is significant because it was conducted targeting the Thai HMR market, where research has been limited, and it revealed the characteristics of segmented markets by reflecting the food consumption value characteristics of Thai consumers. The characteristics of each market segment can be used to develop HMR and marketing strategies that fit the market.
9.A Case of Concurrent Anti-Glomerular Basement Membrane Antibody Disease and Immunoglobulin A Nephropathy
Su In KIM ; Sung Sun KIM ; Chang Seong KIM ; Seong Kwon MA ; Soo Wan KIM ; Hong Sang CHOI
Korean Journal of Medicine 2024;99(6):322-326
Anti-glomerular basement membrane (GBM) antibody disease is a rare autoimmune disorder characterized by autoantibodies directed against antigens within the GBM, primarily affecting the kidneys and lungs. This severe form of glomerulonephritis has an incidence of less than two cases per million individuals with crescentic glomerulonephritis. The coexistence of immunoglobulin A (IgA) nephropathy and anti-GBM disease is rare. Here, we present a case of concurrent anti-GBM antibody disease and IgA nephropathy. A 49-year-old male presented with fever, azotemia, proteinuria, and hematuria. Biopsy of the kidney revealed crescentic glomerulonephritis with linear IgG deposition along the GBM and IgA deposition in the mesangium. Elevated serum levels of anti-GBM antibody (311 U/mL) confirmed the diagnosis of concurrent anti-GBM antibody disease and IgA nephropathy. Despite treatment with methylprednisolone, cyclophosphamide, and plasma exchange, renal function deteriorated, necessitating hemodialysis.
10.A Case of Concurrent Anti-Glomerular Basement Membrane Antibody Disease and Immunoglobulin A Nephropathy
Su In KIM ; Sung Sun KIM ; Chang Seong KIM ; Seong Kwon MA ; Soo Wan KIM ; Hong Sang CHOI
Korean Journal of Medicine 2024;99(6):322-326
Anti-glomerular basement membrane (GBM) antibody disease is a rare autoimmune disorder characterized by autoantibodies directed against antigens within the GBM, primarily affecting the kidneys and lungs. This severe form of glomerulonephritis has an incidence of less than two cases per million individuals with crescentic glomerulonephritis. The coexistence of immunoglobulin A (IgA) nephropathy and anti-GBM disease is rare. Here, we present a case of concurrent anti-GBM antibody disease and IgA nephropathy. A 49-year-old male presented with fever, azotemia, proteinuria, and hematuria. Biopsy of the kidney revealed crescentic glomerulonephritis with linear IgG deposition along the GBM and IgA deposition in the mesangium. Elevated serum levels of anti-GBM antibody (311 U/mL) confirmed the diagnosis of concurrent anti-GBM antibody disease and IgA nephropathy. Despite treatment with methylprednisolone, cyclophosphamide, and plasma exchange, renal function deteriorated, necessitating hemodialysis.

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