Bo Zhao, Zhenwang Zhang, Xiying Guo, Xiufen Liu, Min Lei, Shuang Guo, Qing Yao, Feixue Zhang, Tie Peng, Aimei Liu, Botao Jiang, Dan Zhu
{"title":"Mesenchymal stem cell-derived exosomes in renal ischemia-reperfusion injury: a new therapeutic strategy.","authors":"Bo Zhao, Zhenwang Zhang, Xiying Guo, Xiufen Liu, Min Lei, Shuang Guo, Qing Yao, Feixue Zhang, Tie Peng, Aimei Liu, Botao Jiang, Dan Zhu","doi":"10.1007/s11255-024-04258-4","DOIUrl":"https://doi.org/10.1007/s11255-024-04258-4","url":null,"abstract":"<p><p>Renal ischemia-reperfusion injury (RIRI) is a serious kidney condition that causes significant damage due to lack of blood flow. This injury leads to oxidative stress and inflammation, which can cause acute tubular necrosis and kidney failure. Stem cell-derived exosomes, small vesicles released by stem cells, have shown promise in treating RIRI. Mesenchymal stem cells (MSCs) have been used to mitigate RIRI, and their exosomes have been found to play a crucial role in repairing damaged tissues. This review explores the key roles of exosomes from different sources of MSCs in RIRI, the potential of MSC-derived exosomes in treating this disease, and future research directions.</p>","PeriodicalId":14454,"journal":{"name":"International Urology and Nephrology","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142620759","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Efficacy and safety of neoadjuvant chemohormonal therapy for high-risk prostate cancer treated with robot-assisted laparoscopic radical prostatectomy: a propensity score-matched analysis (the MSUG94 group).","authors":"Yuki Yokoyama, Makoto Kawase, Shin Ebara, Tomoyuki Tatenuma, Takeshi Sasaki, Yoshinori Ikehata, Akinori Nakayama, Masahiro Toide, Tatsuaki Yoneda, Kazushige Sakaguchi, Jun Teishima, Kazuhide Makiyama, Takahiro Inoue, Hiroshi Kitamura, Kazutaka Saito, Fumitaka Koga, Shinji Urakami, Takuya Koie","doi":"10.1007/s11255-024-04268-2","DOIUrl":"https://doi.org/10.1007/s11255-024-04268-2","url":null,"abstract":"<p><strong>Purpose: </strong>The optimal neoadjuvant regimen before radical prostatectomy (RP) in patients with high-risk (HR) prostate cancer (PCa) remains to be determined. This retrospective multicenter cohort study assessed the effectiveness and safety of neoadjuvant chemohormonal therapy (NCHT) in patients with HR-PCa undergoing robot-assisted laparoscopic radical prostatectomy (RALP).</p><p><strong>Methods: </strong>We reviewed the datasets of 1023 subjects who underwent RALP at nine Japanese facilities between September 2012 and October 2023. The enrolled patients were divided into two groups using propensity score matching: a RALP-alone group and those who underwent NCHT followed by RALP (NCHT group). The NCHT regimen consisted of a luteinizing hormone-releasing hormone antagonist and tegafur-uracil for at least 3 months before RALP. The primary endpoint was biochemical recurrence (BCR) after RALP. The secondary endpoint was the surgical specimen pathology findings.</p><p><strong>Results: </strong>Propensity score matching identified 139 individuals for each group. Median follow-up was 18.2 months. During follow-up, BCR was observed in 41 patients (29.5%) in the RALP-alone group and 22 patients (15.8%) in the NCHT group (p = 0.010). Pathological results showed significantly more organ-confined PCa and significantly fewer positive surgical margins or lymphovascular invasion in the NCHT group than in the RALP-alone group. The 2-yr biochemical recurrence-free survival (BRFS) was 72.7% and 74.7% in the RALP-alone and NCHT groups, respectively (p = 0.086). Two patients (1.4%) experienced grade 3 liver disorder as an NCHT-related adverse event.</p><p><strong>Conclusion: </strong>The results suggest that NCHT can safely treat HR-PCa and may reduce the incidence of BCR when combined with RALP.</p>","PeriodicalId":14454,"journal":{"name":"International Urology and Nephrology","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142620754","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Umair Maaz, Fatima Hussain, Muskan Asghar, Saman Adnan
{"title":"Harnessing ARNI in advanced CKD - a new frontier for cardiac and renal protection.","authors":"Umair Maaz, Fatima Hussain, Muskan Asghar, Saman Adnan","doi":"10.1007/s11255-024-04279-z","DOIUrl":"https://doi.org/10.1007/s11255-024-04279-z","url":null,"abstract":"","PeriodicalId":14454,"journal":{"name":"International Urology and Nephrology","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142604285","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Artificial intelligence algorithms enhance urine cytology reporting confidence in postoperative follow-up for upper urinary tract urothelial carcinoma.","authors":"Cheng-Che Chen, Tsung-Han Yen, Jian-Ri Li, Chih-Jung Chen, Chi-Shun Yang, Jing-Yi Lai, Shu-Jiuan Lin, Cheng-Hung Yeh, Shih-Wen Hsu, Ming-Yu Lin, Tien-Jen Liu, Chuan Shu Chen","doi":"10.1007/s11255-024-04270-8","DOIUrl":"https://doi.org/10.1007/s11255-024-04270-8","url":null,"abstract":"<p><strong>Purpose: </strong>In Taiwan, the incidence of urothelial carcinoma of the upper urinary tract (UTUC) is high and intravesical recurrence is approximately 22%-47%. Thus, postoperative cystoscopy and urine cytology follow-up, which require experienced cytologists, are needed. The AIxURO system aligns with The Paris System (TPS) guidelines for reporting urinary cytology. This study assessed the benefit of early detection of intravesical recurrence after nephroureterectomy using the AIxURO system.</p><p><strong>Methods: </strong>Urine cytology slides (n = 296) from 113 patients with UTUC were retrieved and patient data, pre-operative and postoperative cytology, pathology, and follow-up series for the intravesical recurrence group were collected. Cytology slides were digitized and independently assessed by the AIxURO system, and the results were compared to cytology reports.</p><p><strong>Results: </strong>From January 2022 to August 2023, 113 patients with UTUC underwent nephroureterectomy. Eighty-eight patients (88/113, 77.8%) received 1 or 2 cytology examinations pre-operatively, 44 slides (44/204, 21.5%) were positive and 34 patients (34/113, 30.1%) were diagnosed with UTUC. Postoperative intravesical recurrence was detected in 27 patients (27/113, 23%) at an average of 190.62 days. Thirty-four slides (34/56, 60.7%) were negative for UTUC. Eight patients (8/27, 29.6%) met the criteria for early diagnosis of intravesical recurrence. The AIxURO system identified two more patients (10/27, 37.0%) with early intravesical recurrence.</p><p><strong>Conclusion: </strong>The AIxURO system enhanced postoperative urine cytology reporting confidence and could identify some underdiagnosed slides to enhance the early detection of UTUC with intravesical recurrence. AIxURO may be used for post-nephroureterectomy follow-up and reduce the necessity for cystoscopy.</p>","PeriodicalId":14454,"journal":{"name":"International Urology and Nephrology","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142604267","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hongliang Cao, Chengdong Shi, Zulipikaer Aihemaiti, Xianyu Dai, Fangqiu Yu, Song Wang
{"title":"Association of body round index with chronic kidney disease: a population-based cross-sectional study from NHANES 1999-2018.","authors":"Hongliang Cao, Chengdong Shi, Zulipikaer Aihemaiti, Xianyu Dai, Fangqiu Yu, Song Wang","doi":"10.1007/s11255-024-04275-3","DOIUrl":"https://doi.org/10.1007/s11255-024-04275-3","url":null,"abstract":"<p><strong>Background: </strong>Complex nexuses between obesity and chronic kidney disease (CKD) have been reported. Nevertheless, the link between the body roundness index (BRI), an indicator utilized to measure body fat distribution, and CKD risk has been unexplored.</p><p><strong>Methods: </strong>We utilized publicly available data from ten survey cycles (1999-2018) of the National Health and Nutrition Examination Survey (NHANES) in the United States. We examined the association between BRI and CKD risk using multivariable logistic regression, subgroup analysis, interaction tests, and smooth curve fitting.</p><p><strong>Results: </strong>The study ultimately involved 41,953 participants, 3,123 (7.44%) of whom had CKD. Multivariable logistic regression, adjusted for covariates, identified high BRI levels in quartile 4 as a risk factor for CKD (OR = 1.30, 95% CI 1.12-1.50, P = 0.0005). This association remained consistent across subgroups (P for interaction > 0.05). Smoothed curve fitting exhibited a roughly linear positive correlation between BRI and CKD.</p><p><strong>Conclusion: </strong>According to our study, BRI was related to CKD in a roughly linear way, suggesting a novel indicator for improving prevention and treatment for the CKD population. Nevertheless, additional research is needed to identify the association.</p>","PeriodicalId":14454,"journal":{"name":"International Urology and Nephrology","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142581492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Does the hemodialysis program affect the prostate-specific antigen (PSA) serum levels in patients with end-stage renal disease (ESRD)? A cross-sectional descriptive study.","authors":"Mahmoud Mustafa, Kamel Jebrin, Duha Sameeh Abuajina, Reem Nazmi Samarah, Amir Aghbar","doi":"10.1007/s11255-024-04267-3","DOIUrl":"https://doi.org/10.1007/s11255-024-04267-3","url":null,"abstract":"<p><strong>Purpose: </strong>This study aims to investigate the effect of high-flux membrane hemodialysis on total prostate-specific antigen (tPSA) serum levels in hemodialysis patients and to evaluate the clinical significance of any observed changes.</p><p><strong>Methods: </strong>A cross-sectional descriptive study was conducted involving 75 hemodialysis patients at An-Najah National University Hospital. tPSA and hematocrit (Hct) serum levels were measured before and after one hemodialysis session. The correlation between changes in tPSA and Hct levels was analyzed using the Statistical Package for Social Sciences (SPSS).</p><p><strong>Results: </strong>The mean age of the patients was 54.25 ± 15.27 years, with a mean hemodialysis duration of 40 ± 38 months. The mean tPSA levels before and after hemodialysis were 0.95 ± 0.81 ng/ml and 1.15 ± 0.96 ng/ml, respectively. Significant increases were observed in both tPSA (t = -3.264, p = 0.002) and Hct levels (t = -7.861, p < 0.001). The percentage changes in tPSA and Hct were 20% and 12%, respectively, with no significant correlation between the changes (r = 0.152, p = 0.215).</p><p><strong>Conclusions: </strong>Hemodialysis significantly elevates tPSA serum levels; however, no significant correlation was found between changes in tPSA and Hct. None of the patients showed clinically significant elevations in tPSA that would necessitate prostate biopsy. Therefore, high-flux membrane hemodialysis does not appear to compromise the diagnostic value of tPSA in hemodialysis patients.</p>","PeriodicalId":14454,"journal":{"name":"International Urology and Nephrology","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142581683","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nikhil Sharma, Mahalaqua Nazli Khatib, Ashok Kumar Balaraman, R Roopashree, Mandeep Kaur, Manish Srivastava, Amit Barwal, G V Siva Prasad, Pranchal Rajput, Rukshar Syed, Gajendra Sharma, Sunil Kumar, Mahendra Pratap Singh, Ganesh Bushi, Nagavalli Chilakam, Sakshi Pandey, Manvinder Brar, Rachana Mehta, Sanjit Sah, Abhay M Gaidhane, Muhammed Shabil
{"title":"Effect of GLP-1 receptor agonists on prostate cancer risk reduction: a systematic review and meta-analysis.","authors":"Nikhil Sharma, Mahalaqua Nazli Khatib, Ashok Kumar Balaraman, R Roopashree, Mandeep Kaur, Manish Srivastava, Amit Barwal, G V Siva Prasad, Pranchal Rajput, Rukshar Syed, Gajendra Sharma, Sunil Kumar, Mahendra Pratap Singh, Ganesh Bushi, Nagavalli Chilakam, Sakshi Pandey, Manvinder Brar, Rachana Mehta, Sanjit Sah, Abhay M Gaidhane, Muhammed Shabil","doi":"10.1007/s11255-024-04266-4","DOIUrl":"https://doi.org/10.1007/s11255-024-04266-4","url":null,"abstract":"<p><strong>Background: </strong>Prostate cancer is one of the most prevalent malignancies among men globally. Glucagon-like peptide 1 receptor agonists (GLP-1 RAs), primarily used for type 2 diabetes mellitus (T2DM) management, have been investigated for their potential effects on cancer risks. This systematic review and meta-analysis aimed to assess the association between GLP-1 RA use and risk reduction of prostate cancer.</p><p><strong>Methods: </strong>A comprehensive literature search was conducted across PubMed, Embase, and Web of Science up to July 30, 2024. Studies that met the inclusion criteria randomized controlled trials, cohort studies, case-control studies, and observational studies assessing the incidence of prostate cancer in GLP-1 RA-treated patients were included. The quality of studies was evaluated using the Newcastle-Ottawa Scale and the Cochrane Risk of Bias tool. Meta-analysis was performed using a random effects model.</p><p><strong>Results: </strong>A total of five studies were included, analyzing data from diverse international contexts. The included studies showed a reduced risk of prostate cancer with both adjusted and unadjusted effect estimates with GLP-1 RAs. The meta-analysis revealed an RR of 0.72 (95% CI: 0.610 to 0.832), indicating a statistically significant 28% reduction in prostate cancer risk associated with GLP-1 RA use compared to placebo or other antidiabetic drugs. Moderate heterogeneity was observed (I<sup>2</sup> = 51%). Sensitivity analysis confirmed the results.</p><p><strong>Conclusion: </strong>The findings suggest a significant protective association between GLP-1 RA use and reduced prostate cancer risk in men, particularly those with T2DM. This supports the potential of GLP-1 RAs not only in diabetes management but also as a strategy to mitigate cancer risk. Further research is required to confirm these findings and explore the underlying mechanisms, considering different dosages, durations of therapy, and patient subgroups based on demographic and metabolic characteristics.</p>","PeriodicalId":14454,"journal":{"name":"International Urology and Nephrology","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142568444","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Renal injury in NSAIDs: a real-world analysis based on the FAERS database.","authors":"Haojie Xu, Jiaming Cao, Hongyi Zhang, Fenglong Fei, Dongming Tang, Donghua Liu, Dongbin Luo","doi":"10.1007/s11255-024-04263-7","DOIUrl":"https://doi.org/10.1007/s11255-024-04263-7","url":null,"abstract":"<p><strong>Objective: </strong>This study aims to evaluate the reporting risk of renal injury associated with non-steroidal anti-inflammatory drugs (NSAIDs), with a particular focus on the reporting risk levels and onset times of different NSAIDs.</p><p><strong>Methods: </strong>A pharmacovigilance study was conducted using data from the FAERS database from January 2004 to December 2023. Reports of renal injury were identified, and signal detection was performed using reporting odds ratio (ROR) and Bayesian confidence propagation neural network (BCPNN) methods. The study compared the incidence, mortality rates, and onset times of renal injury across five NSAIDs.</p><p><strong>Results: </strong>Among the 7436 cases of NSAID-associated renal injury analyzed, elderly patients are at an increased risk of renal injury associated with NSAID usage. Ibuprofen had the highest number of reports (3475 cases, 46.7%), while celecoxib had the lowest (542 cases, 7.3%). Ibuprofen showed the highest signal with renal injury (ROR 3.3, IC025 1.7), whereas celecoxib exhibited the lowest (ROR 1.4, IC025 0.4). Aspirin had the highest mortality rate associated with renal injury (18.7%), while ibuprofen had the lowest (3.8%). The median onset time for renal injury was 6 days, with 79.3% of adverse events occurring within the first 30 days of use.</p><p><strong>Conclusion: </strong>The study indicates that ibuprofen presents the highest signal of renal injury, while celecoxib shows the lowest signal. The likelihood of NSAID-associated renal injury is heightened in elderly patients, and all five studied NSAIDs are linked to an increased likelihood of acute renal injury. NSAID-related renal damage tends to occur early in the treatment process, potentially leading to serious consequences. Due to the inherent limitations of pharmacovigilance studies, certain findings require additional validation like cohort studies. Nonetheless, the potential for an increased risk of renal injury must be taken into account in patient care.</p>","PeriodicalId":14454,"journal":{"name":"International Urology and Nephrology","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142564209","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Predicting the risk of pulmonary infection after kidney transplantation using machine learning methods: a retrospective cohort study.","authors":"Xiaoting Wu, Hailing Zhang, Minglong Cai, Ying Zhang, Anlan Xu","doi":"10.1007/s11255-024-04264-6","DOIUrl":"https://doi.org/10.1007/s11255-024-04264-6","url":null,"abstract":"<p><strong>Purpose: </strong>Pulmonary infection is the most common and serious complication after kidney transplantation that affects the survival of the transplanted kidney and the quality of life of patients. This study aims to construct a machine learning model for predicting the risk of pulmonary infection after kidney transplantation.</p><p><strong>Methods: </strong>We recruited 857 kidney transplant recipients from January 1, 2016, to December 31, 2021, in the Department of Nephrology, the First Affiliated Hospital of the University of Science and Technology of China. First, the distribution of baseline characteristics between patients with and without postoperative pulmonary infections was analyzed. Subsequently, six machine learning models were constructed to predict the risk of postoperative pulmonary infections. Finally, these models were subjected to external validation using an independent cohort. The performance of the models was evaluated by area under the receiver operating characteristic curve (AUC).</p><p><strong>Results: </strong>Among kidney transplant recipients, a total of 186 individuals developed pneumonia, with 144 cases in the training cohort and 42 cases in the external validation cohort. The AUC range of the six machine learning models for predicting the risk of postoperative pulmonary infection was 0.758-0.822 for the training cohort and 0.642-0.795 for the testing cohort. Among the models assessed, the gradient boosting machine demonstrated the most favorable predictive accuracy.</p><p><strong>Conclusions: </strong>Our study has developed a predictive model for assessing the risk of pulmonary infection after kidney transplantation, thereby providing a valuable foundation for the effective management of kidney transplant recipients.</p>","PeriodicalId":14454,"journal":{"name":"International Urology and Nephrology","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142564207","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Uric acid mediates the association between testosterone and α-Klotho among males: results from the NHANES 2013-2016.","authors":"Andong Guo, Jishuang Cao, Chenrui Wu, Sentai Ding","doi":"10.1007/s11255-024-04262-8","DOIUrl":"https://doi.org/10.1007/s11255-024-04262-8","url":null,"abstract":"<p><strong>Purpose: </strong>This study initially conducted a cross-sectional analysis to examine the association between total testosterone (TT), uric acid, and Klotho. The investigation examined whether uric acid mediates the association between TT and Klotho in males.</p><p><strong>Methods: </strong>Based on data from the National Health and Nutrition Examination Survey (NHANES) 2013-2016, this study performed weighted multivariable-adjusted linear regression to evaluate the association between TT, uric acid, and α-Klotho. Then, mediation analysis was conducted to delineate the potential mediating role of uric acid in the TT-Klotho association.</p><p><strong>Results: </strong>Multivariable linear regression analyses revealed inverse relationships between TT and uric acid (β = - 2.75, 95% CI: - 4.21, 1.28, p < 0.001) and between uric acid and α-Klotho (β = - 4.80, 95% CI: - 6.47, - 3.13, p < 0.001). Conversely, a positive correlation existed between TT and α-Klotho (β = 5.38, 95% CI: 2.23, 8.53, p < 0.001). Updated subgroup analyses show that the association strength between α-Klotho, TT, and uric acid levels was consistent across various population settings without significant variations. Restricted cubic spline analysis identified a non-linear association between TT and uric acid with an inflection point at 201 ng/mL. Mediation analysis confirmed uric acid-mediated 18.59% of the association between TT and α-Klotho (p < 0.001), highlighting its significant intermediary role.</p><p><strong>Conclusion: </strong>This study elucidates the complex interrelationship between TT, uric acid, and α-Klotho, highlighting uric acid's significant mediating role. These findings provide novel insights into the hormonal and metabolic mechanisms underlying age-related processes and longevity.</p>","PeriodicalId":14454,"journal":{"name":"International Urology and Nephrology","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142564238","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}