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Vrooman OPJ, van Kerrebroeck PEV, van Balken MR, van Koeveringe GA, Rahnama'i MS. Nocturia and obstructive sleep apnoea. Nat Rev Urol 2024:10.1038/s41585-024-00887-7. [PMID: 38783115 DOI: 10.1038/s41585-024-00887-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/12/2024] [Indexed: 05/25/2024]
Abstract
Nocturia, the need to urinate at night, is a common symptom in patients with obstructive sleep apnoea (OSA). Continuous positive airway pressure treatment can reduce nocturia in some patients, but the underlying mechanisms are complex and not fully understood. OSA affects the autonomic nervous system, oxidative stress and endothelial damage. Furthermore, the commonly held theory attributing polyuria to a false signal of cardiac overload and response natriuresis has limitations. A comprehensive approach to the management of nocturia in OSA, considering factors such as comorbidities, medication use, alcohol consumption and lifestyle, is needed. Effective management of nocturia in OSA requires a multidisciplinary approach, and urologists should be aware of the potential effect of OSA on physiology and refer patients for further testing at a sleep centre. In addition to continuous positive airway pressure, other interventions such as oral appliances and surgical obstruction treatment could be beneficial for some patients. Overall, understanding the complex interplay between OSA and nocturia is crucial for optimizing patient outcomes.
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Affiliation(s)
- Olaf P J Vrooman
- Department of Urology, Hospital Rijnstate Arnhem, Arnhem, Netherlands.
| | | | | | | | - Mohammad S Rahnama'i
- Department of Urology Nij Smellinghe Hospital, Drachten, Netherlands
- Society of Urological research and education (SURE), Maastricht, Netherlands
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2
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Choi HP, Yang JH, Azadzoi KM. Differential Post-Translational Modifications of Proteins in Bladder Ischemia. Biomedicines 2023; 12:81. [PMID: 38255188 PMCID: PMC10813800 DOI: 10.3390/biomedicines12010081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 12/23/2023] [Accepted: 12/27/2023] [Indexed: 01/24/2024] Open
Abstract
Clinical and basic research suggests that bladder ischemia may be an independent variable in the development of lower urinary tract symptoms (LUTS). We have reported that ischemic changes in the bladder involve differential expression and post-translational modifications (PTMs) of the protein's functional domains. In the present study, we performed in-depth analysis of a previously reported proteomic dataset to further characterize proteins PTMs in bladder ischemia. Our proteomic analysis of proteins in bladder ischemia detected differential formation of non-coded amino acids (ncAAs) that might have resulted from PTMs. In-depth analysis revealed that three groups of proteins in the bladder proteome, including contractile proteins and their associated proteins, stress response proteins, and cell signaling-related proteins, are conspicuously impacted by ischemia. Differential PTMs of proteins by ischemia seemed to affect important signaling pathways in the bladder and provoke critical changes in the post-translational structural integrity of the stress response, contractile, and cell signaling-related proteins. Our data suggest that differential PTMs of proteins may play a role in the development of cellular stress, sensitization of smooth muscle cells to contractile stimuli, and deferential cell signaling in bladder ischemia. These observations may provide the foundation for future research to validate and define clinical translation of the modified biomarkers for precise diagnosis of bladder dysfunction and the development of new therapeutic targets against LUTS.
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Affiliation(s)
- Han-Pil Choi
- Proteomics Laboratory, VA Boston Healthcare System, Boston, MA 02130, USA;
| | - Jing-Hua Yang
- Proteomics Laboratory, Department of Surgery, VA Boston Healthcare System, Boston University School of Medicine, Boston, MA 02130, USA;
| | - Kazem M. Azadzoi
- Departments of Urology and Pathology, VA Boston Healthcare System, Boston University School of Medicine, Boston, MA 02130, USA
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3
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Fan YH, Cheng WM, Huang YC. Lower urinary tract symptoms as an independent predictor of aortic regurgitation in women with cardiac symptoms. J Chin Med Assoc 2023; 86:641-645. [PMID: 37184486 DOI: 10.1097/jcma.0000000000000935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/16/2023] Open
Abstract
BACKGROUND Very few studies have focused on the correlation between structural heart disease and lower urinary tract symptoms. In this study, we applied echocardiography to explore the correlation between lower urinary tract symptoms and structural heart disease. METHODS In this single-center, prospective, cross-sectional study, we enrolled adult women undergoing echocardiography for suspected cardiac abnormalities causing cardiac symptoms between February 1, 2021, and March 31, 2021. All participants completed a questionnaire regarding demographic information and lower urinary tract symptoms, which were assessed according to the International Prostate Symptom Score. RESULTS A total of 165 women aged 69.96 ± 10.20 years were enrolled. The prevalence of moderate-to-severe aortic regurgitation in patients with moderate-to-severe lower urinary tract symptoms was significantly higher than that in patients with mild lower urinary tract symptoms (33.3% vs 13.6%, p = 0.008). The prevalence of other echocardiographic abnormalities was not associated with severity of lower urinary tract symptoms. Multivariable logistic regression analyses revealed that moderate-to-severe lower urinary tract symptoms predicted moderate-to-severe aortic regurgitation ( p = 0.007; odds ratio: 3.560; 95% confidence interval: 1.409-8.993). Furthermore, the International Prostate Symptom Score storage subscore ( p = 0.001; odds ratio: 1.285; 95% confidence interval: 1.111-1.486), except the voiding subscore, was an independent predictor of moderate-to-severe aortic regurgitation. CONCLUSION Moderate-to-severe lower urinary tract symptoms, especially storage symptoms, are an independent predictor of the co-existence of moderate-to-severe aortic regurgitation in women with cardiac symptoms. Early cardiological referral of patients with moderate-to-severe lower urinary tract symptoms and cardiac symptoms may improve their general health.
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Affiliation(s)
- Yu-Hua Fan
- Department of Urology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Department of Urology, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
- Shu-Tien Urological Research Center, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
| | - Wei-Ming Cheng
- Department of Urology, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
- Program in Molecular Medicine, School of Life Sciences, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
- Institute of Biopharmaceutical Science, School of Life Science, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
- Division of Urology, Department of Surgery, Taipei City Hospital, Zhongxiao Branch, Taipei, Taiwan, ROC
| | - Yen-Chang Huang
- Division of Cardiology, Department of Medicine, Taipei City Hospital, Taipei, Taiwan, ROC
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Monaghan TF, Weiss JP, Wein AJ, Rahman SN, Lazar JM, Bliwise DL, Everaert K, Lemack GE, Cornu JN, Drake MJ, Chapple CR, Hashim H, Blaivas JG, Dmochowski RR. Sleep Disorders, Comorbidities, Actions, Lower Urinary Tract Dysfunction, and Medications ("Sleep C.A.L.M.") in the evaluation and management of nocturia: A simple approach to a complex diagnosis. Neurourol Urodyn 2023; 42:562-572. [PMID: 36655726 DOI: 10.1002/nau.25128] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 12/19/2022] [Accepted: 12/21/2022] [Indexed: 01/20/2023]
Abstract
INTRODUCTION Nocturia arises from a fundamental mismatch between nocturnal urine production, storage capacity, and sleep architecture, which may be driven by abnormalities of the genitourinary tract, but also by sleep disorders, medical diseases, patient actions/lifestyle factors, or medications. This article introduces a novel system for organizing the complex differential diagnosis for nocturia, as proposed by an international collective of practicing urologists, physician specialists, and sleep experts: "Sleep CALM"-Sleep Disorders, Comorbidities, Actions, Lower Urinary Tract Dysfunction, and Medications. METHODS Narrative review of current evidence regarding the relevance of each "Sleep CALM" factor to nocturia pathogenesis, evaluation, and management. RESULTS Nocturia and sleep disorders are highly intertwined and often bidirectional, such that nocturnal awakenings for reasons other than a sensation of bladder fullness should not be used as grounds for exclusion from nocturia treatment, but rather leveraged to broaden therapeutic options for nocturia. Nocturia is an important potential harbinger of several serious medical conditions beyond the genitourinary tract. Urologists should have a low threshold for primary care and medical specialty referral for medical optimization, which carries the potential to significantly improve nocturnal voiding frequency in addition to overall health status. Adverse patient actions/lifestyle factors, lower urinary tract dysfunction, and medication use commonly coexist with disordered sleep and comorbid medical conditions, and may be the primary mediators of nocturia severity and treatment response, or further exacerbate nocturia severity and complicate treatment. CONCLUSION "Sleep CALM" provides a memorable and clinically relevant means by which to structure the initial patient history, physical exam, and clinical testing in accordance with current best-practice guidelines for nocturia. Although not intended as an all-encompassing diagnostic tool, the "Sleep CALM" schema may also be useful in guiding individualized ancillary testing, identifying the need for specialty referral and multidisciplinary care, and uncovering first-line treatment targets.
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Affiliation(s)
- Thomas F Monaghan
- Department of Urology, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Jeffrey P Weiss
- Department of Urology, SUNY Downstate Health Sciences University, Brooklyn, New York, USA
| | - Alan J Wein
- Division of Urology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Syed N Rahman
- Department of Urology, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Jason M Lazar
- Department of Medicine, Division of Cardiovascular Medicine, SUNY Downstate Health Sciences University, Brooklyn, New York, USA
| | - Donald L Bliwise
- Department of Neurology, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Karel Everaert
- Department of Human Structure and Repair, Faculty of Medicine and Health Science, Ghent University, Ghent, Belgium
| | - Gary E Lemack
- Department of Urology, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Jean-Nicolas Cornu
- Department of Urology, Charles Nicolle University Hospital, Rouen, France
| | - Marcus J Drake
- Department of Urology, Imperial College London, Imperial College Healthcare NHS Trust, London, UK
| | - Christopher R Chapple
- Department of Urology, Royal Hallamshire Hospital, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
| | - Hashim Hashim
- Bristol Urological Institute, Southmead Hospital, North Bristol NHS Trust, Bristol, UK
| | - Jerry G Blaivas
- Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Roger R Dmochowski
- Department of Urological Surgery, Vanderbilt University Medical Center, Nashville, Tennessee, USA
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Involvement of Mast-Cell-Tryptase- and Protease-Activated Receptor 2-Mediated Signaling and Urothelial Barrier Dysfunction with Reduced Uroplakin II Expression in Bladder Hyperactivity Induced by Chronic Bladder Ischemia in the Rat. Int J Mol Sci 2023; 24:ijms24043982. [PMID: 36835398 PMCID: PMC9966957 DOI: 10.3390/ijms24043982] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 02/07/2023] [Accepted: 02/14/2023] [Indexed: 02/18/2023] Open
Abstract
We aimed to investigate the relationship between mast cell (MC) infiltration into the bladder with urothelial barrier dysfunction and bladder hyperactivity in a chronic bladder ischemia (CBI) rat model. We compared CBI rats (CBI group; n = 10) with normal rats (control group; n = 10). We measured the expression of mast cell tryptase (MCT) and protease-activated receptor 2 (PAR2), which are correlated with C fiber activation via MCT, and Uroplakins (UP Ia, Ib, II and III), which are critical to urothelial barrier function, via Western blotting. The effects of FSLLRY-NH2, a PAR2 antagonist, administered intravenously, on the bladder function of CBI rats were evaluated with a cystometrogram. In the CBI group, the MC number in the bladder was significantly greater (p = 0.03), and the expression of MCT (p = 0.02) and PAR2 (p = 0.02) was significantly increased compared to that of the control group. The 10 μg/kg FSLLRY-NH2 injection significantly increased the micturition interval of CBI rats (p = 0.03). The percentage of UP-II-positive cells on the urothelium with immunohistochemical staining was significantly lower in the CBI group than in the control group (p < 0.01). Chronic ischemia induces urothelial barrier dysfunction via impairing UP II, consequently inducing MC infiltration into the bladder wall and increased PAR2 expression. PAR2 activation by MCT may contribute to bladder hyperactivity.
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Molecular Regulation of Concomitant Lower Urinary Tract Symptoms and Erectile Dysfunction in Pelvic Ischemia. Int J Mol Sci 2022; 23:ijms232415988. [PMID: 36555629 PMCID: PMC9782153 DOI: 10.3390/ijms232415988] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 12/09/2022] [Accepted: 12/11/2022] [Indexed: 12/23/2022] Open
Abstract
Aging correlates with greater incidence of lower urinary tract symptoms (LUTS) and erectile dysfunction (ED) in the male population where the pathophysiological link remains elusive. The incidence of LUTS and ED correlates with the prevalence of vascular risk factors, implying potential role of arterial disorders in concomitant development of the two conditions. Human studies have revealed lower bladder and prostate blood flow in patients with LUTS suggesting that the severity of LUTS and ED correlates with the severity of vascular disorders. A close link between increased prostatic vascular resistance and greater incidence of LUTS and ED has been documented. Experimental models of atherosclerosis-induced chronic pelvic ischemia (CPI) showed increased contractile reactivity of prostatic and bladder tissues, impairment of penile erectile tissue relaxation, and simultaneous development of detrusor overactivity and ED. In the bladder, short-term ischemia caused overactive contractions while prolonged ischemia provoked degenerative responses and led to underactivity. CPI compromised structural integrity of the bladder, prostatic, and penile erectile tissues. Downstream molecular mechanisms appear to involve cellular stress and survival signaling, receptor modifications, upregulation of cytokines, and impairment of the nitric oxide pathway in cavernosal tissue. These observations may suggest pelvic ischemia as an important contributing factor in LUTS-associated ED. The aim of this narrative review is to discuss the current evidence on CPI as a possible etiologic mechanism underlying LUTS-associated ED.
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Yang JH, Choi HP, Niu W, Azadzoi KM. Cellular Stress and Molecular Responses in Bladder Ischemia. Int J Mol Sci 2021; 22:ijms222111862. [PMID: 34769293 PMCID: PMC8584445 DOI: 10.3390/ijms222111862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 10/28/2021] [Accepted: 10/29/2021] [Indexed: 11/16/2022] Open
Abstract
The concept of bladder ischemia as a contributing factor to detrusor overactivity and lower urinary tract symptoms (LUTS) is evolving. Bladder ischemia as a consequence of pelvic arterial atherosclerosis was first documented in experimental models and later in elderly patients with LUTS. It was shown that early-stage moderate ischemia produces detrusor overactivity, while prolonged severe ischemia provokes changes consistent with detrusor underactivity. Recent studies imply a central role of cellular energy sensors, cellular stress sensors, and stress response molecules in bladder responses to ischemia. The cellular energy sensor adenosine monophosphate-activated protein kinase was shown to play a role in detrusor overactivity and neurodegeneration in bladder ischemia. The cellular stress sensors apoptosis signal-regulating kinase 1 and caspase-3 along with heat shock proteins were characterized as important contributing factors to smooth muscle structural modifications and apoptotic responses in bladder ischemia. Downstream pathways seem to involve hypoxia-inducible factor, transforming growth factor beta, vascular endothelial growth factor, and nerve growth factor. Molecular responses to bladder ischemia were associated with differential protein expression, the accumulation of non-coded amino acids, and post-translational modifications of contractile proteins and stress response molecules. Further insight into cellular stress responses in bladder ischemia may provide novel diagnostic and therapeutic targets against LUTS.
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Affiliation(s)
- Jing-Hua Yang
- Department of Surgery, Boston University School of Medicine, Boston, MA 02118, USA;
- Proteomics Laboratory, VA Boston Healthcare System, Boston, MA 02130, USA;
| | - Han-Pil Choi
- Proteomics Laboratory, VA Boston Healthcare System, Boston, MA 02130, USA;
| | - Wanting Niu
- Research Section, VA Boston Healthcare System, Boston, MA 02130, USA;
| | - Kazem M. Azadzoi
- Departments of Urology and Pathology, VA Boston Healthcare System and Boston University School of Medicine, Boston, MA 02130, USA
- Correspondence: ; Tel.: +1-(857)-364-5602
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Mekki P, Monaghan TF, Lee L, Agudelo CW, Gong F, George CD, Michelson KP, Wu ZD, Weiss JP, Everaert K, Dmochowski RR, Bliwise DL, Wein AJ, Lazar JM. Nocturia and electrocardiographic abnormalities among patients at an inner-city cardiology clinic. Neurourol Urodyn 2020; 40:509-514. [PMID: 33348456 DOI: 10.1002/nau.24590] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 11/12/2020] [Accepted: 11/19/2020] [Indexed: 11/06/2022]
Abstract
AIMS Nocturia has been increasingly recognized as a potential manifestation of cardiovascular disease. However, the relationship between nocturia and electrocardiographic (ECG) abnormalities has not been studied. This study aims to characterize the diagnostic utility of nocturia in identifying left ventricular hypertrophy (LVH), left atrial enlargement (LAE), and prolonged QTc on ECG. METHODS Retrospective analysis of nocturnal voiding frequency and contemporaneous ECG data from consecutive patients evaluated at a university-based outpatient cardiology clinic. Three sets of three incremental binary multiple logistic regression models controlling for (1) age, (2) sex and race, and (3) body mass index, hypertension, diabetes mellitus, and diuretic utilization were performed to determine whether nocturia was predictive of LVH, LAE, and prolonged QTc. RESULTS Included patients (n = 143, 77.6% nocturia) were predominantly African-American (89.5%), female (74.1%), and obese (61.5%), of whom 44.1%, 41.3%, and 27.3% had LVH, LAE, and prolonged QTc, respectively. Older age, African-American race, obesity, hypertension, diuretic use, LVH, and LAE were significantly associated with nocturia on univariate analysis. No significant differences were observed in the strength of associations between nocturia and LVH, LAE, or QTc prolongation based on age. Nocturia independently predicted LVH in Models I-III (odds ratios [ORs], 2.99-3.20; relative risks [RRs], 1.18 for all, p ≤ .046) and LAE in Models I-III (ORs, 4.24-4.72; RRs, 1.21 for all, p ≤ .015). No significant associations were observed between nocturia and prolonged QTc. CONCLUSIONS Nocturia may be a risk marker for underlying structural cardiac abnormalities.
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Affiliation(s)
- Pakinam Mekki
- Department of Medicine, Division of Cardiovascular Medicine, SUNY Downstate Health Sciences University, Brooklyn, New York, USA
| | - Thomas F Monaghan
- Department of Urology, SUNY Downstate Health Sciences University, Brooklyn, New York, USA
| | - Lily Lee
- Department of Medicine, Division of Cardiovascular Medicine, SUNY Downstate Health Sciences University, Brooklyn, New York, USA
| | - Christina W Agudelo
- Department of Urology, SUNY Downstate Health Sciences University, Brooklyn, New York, USA
| | - Fred Gong
- Department of Urology, SUNY Downstate Health Sciences University, Brooklyn, New York, USA
| | - Christopher D George
- Department of Medicine, Division of Cardiovascular Medicine, SUNY Downstate Health Sciences University, Brooklyn, New York, USA
| | - Kyle P Michelson
- Department of Urology, SUNY Downstate Health Sciences University, Brooklyn, New York, USA
| | - Zhan D Wu
- Department of Urology, SUNY Downstate Health Sciences University, Brooklyn, New York, USA
| | - Jeffrey P Weiss
- Department of Urology, SUNY Downstate Health Sciences University, Brooklyn, New York, USA
| | - Karel Everaert
- Department of Urology, Ghent University Hospital, Ghent, Belgium
| | - Roger R Dmochowski
- Department of Urological Surgery, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Donald L Bliwise
- Department of Neurology, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Alan J Wein
- Division of Urology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Jason M Lazar
- Department of Medicine, Division of Cardiovascular Medicine, SUNY Downstate Health Sciences University, Brooklyn, New York, USA
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Akaihata H, Hata J, Tanji R, Honda-Takinami R, Matsuoka K, Sato Y, Kataoka M, Ogawa S, Kojima Y. Tetrahydrobiopterin prevents chronic ischemia-related lower urinary tract dysfunction through the maintenance of nitric oxide bioavailability. Sci Rep 2020; 10:19844. [PMID: 33199757 PMCID: PMC7670448 DOI: 10.1038/s41598-020-76948-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 11/03/2020] [Indexed: 12/28/2022] Open
Abstract
This study aimed to investigate the influence of chronic ischemia on nitric oxide biosynthesis in the bladder and the effect of administering tetrahydrobiopterin (BH4), a cofactor for endothelial nitric oxide synthase (eNOS), on chronic ischemia-related lower urinary tract dysfunction (LUTD). This study divided male Sprague-Dawley rats into Control, chronic bladder ischemia (CBI) and CBI with oral BH4 supplementation (CBI/BH4) groups. In the CBI group, bladder capacity and bladder muscle strip contractility were significantly lower, and arterial wall was significantly thicker than in Controls. Significant improvements were seen in bladder capacity, muscle strip contractility and arterial wall thickening in the CBI/BH4 group as compared with the CBI group. Western blot analysis of bladder showed expressions of eNOS (p = 0.043), HIF-1α (p < 0.01) and dihydrofolate reductase (DHFR) (p < 0.01), which could regenerate BH4, were significantly higher in the CBI group than in Controls. In the CBI/BH4 group, HIF-1α (p = 0.012) and DHFR expressions (p = 0.018) were significantly decreased compared with the CBI group. Our results suggest that chronic ischemia increases eNOS and DHFR in the bladder to prevent atherosclerosis progression. However, DHFR could not synthesize sufficient BH4 relative to the increased eNOS, resulting in LUTD. BH4 supplementation protects lower urinary tract function by promoting eNOS activity.
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Affiliation(s)
- Hidenori Akaihata
- Department of Urology, Fukushima Medical University of School of Medicine, Fukushima, 960-1295, Japan.
| | - Junya Hata
- Department of Urology, Fukushima Medical University of School of Medicine, Fukushima, 960-1295, Japan
| | - Ryo Tanji
- Department of Urology, Fukushima Medical University of School of Medicine, Fukushima, 960-1295, Japan
| | - Ruriko Honda-Takinami
- Department of Urology, Fukushima Medical University of School of Medicine, Fukushima, 960-1295, Japan
| | - Kanako Matsuoka
- Department of Urology, Fukushima Medical University of School of Medicine, Fukushima, 960-1295, Japan
| | - Yuichi Sato
- Department of Urology, Fukushima Medical University of School of Medicine, Fukushima, 960-1295, Japan
| | - Masao Kataoka
- Department of Urology, Fukushima Medical University of School of Medicine, Fukushima, 960-1295, Japan
| | - Soichiro Ogawa
- Department of Urology, Fukushima Medical University of School of Medicine, Fukushima, 960-1295, Japan
| | - Yoshiyuki Kojima
- Department of Urology, Fukushima Medical University of School of Medicine, Fukushima, 960-1295, Japan
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10
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Monaghan TF, Miller CD, Agudelo CW, Rahman SN, Everaert K, Birder LA, Wein AJ, Weiss JP, Lazar JM. Cardiovascular risk independently predicts small functional bladder storage capacity. Int Urol Nephrol 2020; 53:35-39. [PMID: 32808119 DOI: 10.1007/s11255-020-02616-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 08/13/2020] [Indexed: 12/17/2022]
Abstract
PURPOSE We aimed to determine the potential relationship between atherosclerotic cardiovascular disease (ASCVD) score, which equates to 10-year risk of atherosclerotic cardiovascular events, and functional bladder capacity (FBC) among men in the outpatient urology setting. METHODS We secondarily analyzed voiding diaries from men aged 40 to 79 years with nocturia. Patients with a history of cardiovascular disease or who had nocturnal polyuria were excluded. Patients were stratified by whether they met the high-risk ASCVD threshold (≥ 20%) following current cardiology consensus guidelines and assessed for the presence of small FBC (24-h maximum voided volume ≤ 200 ml). Logistic regression analyses were employed to explore associations between small FBC and ASCVD. RESULTS Eighty-four men (median ASCVD score 18.4 [IQR 12.8-26.9] %, age 66 [61-71] years, body mass index [BMI] 29.4 [26.4-32.7] kg/m2) were included, of whom 36 (42.9%) were high-risk and 48 (57.1%) fell below the high-risk threshold. High-risk patients were more likely to have small FBC (23 [63.9%] vs. 14 [29.2%], p = 0.002). ASCVD risk predicted small FBC on univariate analysis (p = 0.002). No such effect was observed with age (p = 0.116), BMI (p = 0.523), or benign prostatic obstruction (p = 0.180). The association between ASCVD risk and small FBC persisted on multivariate analysis after controlling for BMI and benign prostatic obstruction (p = 0.002). No significant predictors of small FBC were observed when age, a major determinant of ASCVD risk and independent correlate of small FBC, was substituted for ASCVD score (p = 0.108). CONCLUSIONS Small FBC is related to a higher predicted cardiovascular event rate in men with nocturia.
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Affiliation(s)
- Thomas F Monaghan
- Department of Urology, SUNY Downstate Health Sciences University, 450 Clarkson Avenue, Box 79, Brooklyn, NY, 11203, USA.
| | - Connelly D Miller
- Department of Urology, SUNY Downstate Health Sciences University, 450 Clarkson Avenue, Box 79, Brooklyn, NY, 11203, USA
| | - Christina W Agudelo
- Department of Urology, SUNY Downstate Health Sciences University, 450 Clarkson Avenue, Box 79, Brooklyn, NY, 11203, USA
| | - Syed N Rahman
- Department of Urology, SUNY Downstate Health Sciences University, 450 Clarkson Avenue, Box 79, Brooklyn, NY, 11203, USA
| | - Karel Everaert
- Department of Urology, Ghent University Hospital, Ghent, Belgium
| | - Lori A Birder
- Departments of Medicine and Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Alan J Wein
- Division of Urology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Jeffrey P Weiss
- Department of Urology, SUNY Downstate Health Sciences University, 450 Clarkson Avenue, Box 79, Brooklyn, NY, 11203, USA
| | - Jason M Lazar
- Division of Cardiovascular Medicine, Department of Medicine, SUNY Downstate Health Sciences University, Brooklyn, NY, USA
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11
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Speich JE, Tarcan T, Hashitani H, Vahabi B, McCloskey KD, Andersson KE, Wein AJ, Birder LA. Are oxidative stress and ischemia significant causes of bladder damage leading to lower urinary tract dysfunction? Report from the ICI-RS 2019. Neurourol Urodyn 2020; 39 Suppl 3:S16-S22. [PMID: 32056281 PMCID: PMC9794413 DOI: 10.1002/nau.24313] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Accepted: 02/02/2020] [Indexed: 02/06/2023]
Abstract
Several studies indicate that pelvic ischemia and oxidative stress may play a significant role in lower urinary tract dysfunction (LUTD), including detrusor overactivity (DO)/overactive bladder (OAB) and detrusor underactivity (DU)/underactive bladder (UAB). The present article addresses proposal 1: "Are oxidative stress and ischemia significant causes of bladder damage leading to LUTD?" from the 2019 International Consultation on Incontinence-Research Society (ICI-RS) meeting. Bladder ischemia in animals and humans is briefly described, along with the proposed progression from ischemia to LUTD. Bladder ischemia is compared with ischemia of other organs, and the ongoing development of pelvic ischemia animal models is discussed. In addition, the distribution of blood within the bladder during filling and voiding and the challenges of quantification of blood flow in vivo are described. Furthermore, oxidative stress, including potential biomarkers and treatments, and challenges regarding antioxidant therapy for the treatment of LUTD are discussed. Finally, seven critical research questions and proposed studies to answer those questions were identified as priorities that would lead to major advances in the understanding and treatment of lower urinary tract symptoms (LUTS)/LUTD associated with pelvic ischemia and oxidative stress.
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Affiliation(s)
- John E. Speich
- Department of Mechanical and Nuclear Engineering, Virginia Commonwealth University, Richmond, VA, USA
| | - Tufan Tarcan
- Department of Urology, School of Medicine, Koç University, Istanbul, Turkey
- Department of Urology, School of Medicine, Marmara University, Istanbul, Turkey
| | - Hikaru Hashitani
- Department of Cell Physiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Bahareh Vahabi
- School of Physiology, Pharmacology, and Neuroscience, University of Bristol, Bristol, UK
- Department of Applied Sciences, University of West England, Bristol, UK
| | - Karen D. McCloskey
- School of Medicine, Dentistry and Biomedical Sciences, Queen’s University Belfast, Belfast, UK
| | - Karl-Erik Andersson
- Institute for Regenerative Medicine, Wake Forest University School of Medicine, Winston Salem, NC, USA
- Institute of Laboratory Medicine, Lund University, Lund, Sweden
| | - Alan J. Wein
- Perlman School of Medicine, Division of Urology, Department of Surgery, University of Pennsylvania, Philadelphia
| | - Lori A. Birder
- Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
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12
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Schimit GTF, Gregorio EP, Averbeck MA, de Souza MJ, da Silva ACM, Tavares DR, de Almeida SHM. Is There a Link Between Carotid Atherosclerosis and Idiopathic Overactive Bladder Among Women with Metabolic Syndrome? Res Rep Urol 2020; 12:43-48. [PMID: 32110552 PMCID: PMC7036978 DOI: 10.2147/rru.s244758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Accepted: 02/11/2020] [Indexed: 11/24/2022] Open
Abstract
Purpose To evaluate the association between increased intima-media thickness (IMT) and atherosclerotic carotid plaque (CP) with idiopathic overactive bladder syndrome (OAB) in women with metabolic syndrome (MetS). Methods This is a cross-sectional study, which included consecutive women aged 40–75 years with MetS, seeking medical assistance at a reference center between April and December 2016. OAB-V8 questionnaire was used to estimate the prevalence of OAB symptoms, which were defined by a score ≥8 points. All patients underwent bilateral carotid artery ultrasound to assess IMT and CP. Atherosclerosis was defined by the identification of CP during ultrasound, which was diagnosed according to the Mannheim carotid intima-media thickness and plaque consensus. Results Forty-five women were prospectively included. Mean age was 60±9.3 years (range 40–75 ys). Eighteen (40%) patients were diagnosed with OAB. IMT in the general population was 0.72 mm (SD = 0.20). Overall prevalence of atherosclerosis, defined by the presence of the carotid artery plaque, was 51%. OAB prevalence among women with atherosclerosis was higher than in those without atherosclerosis (56.52% versus 22.73%), with a prevalence ratio of 2.49 (p=0.04). Additionally, OAB was associated with degree of carotid stenosis (p = 0.029). Conclusion In this cohort of female patients with MetS, there was an association between carotid atherosclerosis and OAB. Identification of carotid ultrasound abnormalities may lead to refined treatment decision-making among OAB patients.
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13
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Birder LA. Is there a role for oxidative stress and mitochondrial dysfunction in age-associated bladder disorders? Tzu Chi Med J 2020; 32:223-226. [PMID: 32955518 PMCID: PMC7485680 DOI: 10.4103/tcmj.tcmj_250_19] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 11/06/2019] [Accepted: 11/07/2019] [Indexed: 12/27/2022] Open
Abstract
Millions of individuals worldwide are affected by age-related lower urinary tract symptoms (LUTSs), including impaired detrusor contractility, detrusor overactivity, decreased bladder sensation, as well as increased bladder capacity often resulting in incomplete bladder emptying. Yet, the underlying factors that contribute to these symptoms are not known and there are few therapies to treat these disorders. Because of the complex pathophysiology, a number of animal models have been studied over the years to better understand mechanisms underlying patient symptoms. Such animal models can aid in the investigation of aspects of age-associated LUTSs that cannot be pursued in humans as well as to develop and test potential therapies. In addition, the search for urinary factors that may be a causative agent has resulted in the discovery of a number of potential targets that could serve as predictive biomarkers which can aid in early diagnosis and treatment of these chronic disorders. Recent evidence has supported a role for chronic changes in mitochondrial function and oxidative stress (along with production of reactive oxygen species) and abnormal urodynamic behavior in older patients. This review discusses new insights into how aging alters fundamental cellular processes that impair signaling in the bladder wall, resulting in abnormal voiding function.
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Affiliation(s)
- Lori A. Birder
- Department of Medicine, Renal Electrolyte Division, Pittsburgh, PA, USA,Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, PA, USA,Address for correspondence: Prof. Lori A. Birder, Department of Pharmacology and Chemical Biology, University of Pittsburgh, A 1217 Scaife Hall, Pittsburgh, PA 15217, USA. E-mail:
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14
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Vahabi B, Wagg AS, Rosier PFWM, Rademakers KLJ, Denys MA, Pontari M, Lovick T, Valentini FA, Nelson PP, Andersson KE, Fry CH. Can we define and characterize the aging lower urinary tract?-ICI-RS 2015. Neurourol Urodyn 2017; 36:854-858. [PMID: 28444710 DOI: 10.1002/nau.23035] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Accepted: 04/18/2016] [Indexed: 12/13/2022]
Abstract
The prevalence of lower urinary tract (LUT) symptoms increases with age but the etiology is unknown. This article aims to identify research directions that clarify the basis of this association. The initial question is whether biological age is the variable of interest or a time-dependent accumulation of factors that impact on LUT function at rates that differ between individuals. In particular, the accumulation of conditions or agents due to inflammatory states or tissue ischemia is important. Much of the above has been concerned with changes to bladder function and morphology. However, the outflow tract function is also affected, in particular changes to the function of external sphincter skeletal muscle and associated sacral motor nerve control. Nocturia is a cardinal symptom of LUT dysfunction and is more prevalent with aging. Urine production is determined by diurnal changes to the production of certain hormones as well as arterial blood pressure and such diurnal rhythms are blunted in subjects with nocturia, but the causal links remain to be elucidated. Changes to the central nervous control of LUT function with age are also increasingly recognized, whether in mid-brain/brainstem regions that directly affect LUT function or in higher centers that determine psycho-social and emotional factors impinging on the LUT. In particular, the linkage between increasing white matter hyperintensities and LUT dysfunction during aging is recognized but not understood. Overall, a more rational approach is being developed to link LUT dysfunction with factors that accumulate with age, however, the precise causal pathways remain to be characterized. Neurourol. Urodynam. 36:854-858, 2017. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Bahareh Vahabi
- Department of Biological, Biomedical and Analytical Sciences, University of the West of England, Bristol, United Kingdom
| | - Adrian S Wagg
- Division of Geriatric Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Peter F W M Rosier
- Department of Urology, University Medical Center, Utrecht, The Netherlands
| | | | | | | | - Thelma Lovick
- School of Physiology, Pharmacology and Neuroscience, University of Bristol, Bristol, United Kingdom
| | | | - Pierre P Nelson
- ER6-Universite Pierre et Marie Curie (Paris 06), Paris, France
| | | | - Christopher H Fry
- School of Physiology, Pharmacology and Neuroscience, University of Bristol, Bristol, United Kingdom
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15
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Yang JH, Siroky MB, Yalla SV, Azadzoi KM. Mitochondrial stress and activation of PI3K and Akt survival pathway in bladder ischemia. Res Rep Urol 2017; 9:93-100. [PMID: 28652996 PMCID: PMC5476760 DOI: 10.2147/rru.s132082] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
PURPOSE Detrusor overactivity contributes to bothersome constellation of lower urinary tract symptoms (LUTS) in men and women as they age. However, the underlying mechanisms of non-obstructive detrusor overactivity and LUTS remain largely unknown. Growing evidence suggests that ischemia may be an independent factor in the development of non-obstructive bladder dysfunction. Our goal was to determine the effects of ischemia on detrusor function and voiding behavior and define redox-mediated cellular stress and cell survival signaling in the ischemic bladder. MATERIALS AND METHODS Male Sprague Dawley rats were randomly divided into treatment (n=8) and control (n=8) groups. In the treatment group, iliac artery atherosclerosis and chronic bladder ischemia were induced. At 8 weeks after bladder ischemia, voiding patterns were examined in metabolic cages, cystometrograms were recorded in conscious animals, and then bladder blood flow was measured under general anesthesia. Bladder tissues were processed for assessment of transcription factors, markers of cellular and mitochondrial stress, mitochondrial respiration, and cell survival signaling pathway. RESULTS Atherosclerotic occlusive disease spread from the common iliac arteries to the internal iliac and vesical arteries and produced sustained bladder ischemia. Studies in metabolic cages showed increased micturition frequency and decreased voided volume in bladder ischemia. Conscious cystometrograms produced consistent data showing significant increase in micturition frequency and decreased voided volume and bladder capacity. Voiding behavior and cystometric changes in bladder ischemia were associated with significant decrease in DNA binding activity of Nrf2, significant increase in cellular levels of stress protein Hsp70 and mitochondrial stress protein GRP75, and significant decrease in mitochondrial oxygen consumption and upregulation of PI3K and Akt expression. CONCLUSION Chronic bladder ischemia may be a mediating variable in the development of detrusor overactivity in the non-obstructive bladder. The mechanism may involve ischemia-induced cellular stress, Nrf2 functional deficit, depression of mitochondrial respiration, and upregulation of PI3K/Akt cell survival signaling pathway.
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Affiliation(s)
- Jing-Hua Yang
- Department of Urology, VA Boston Healthcare System, Boston University School of Medicine
| | - Mike B Siroky
- Department of Urology, VA Boston Healthcare System, Boston University School of Medicine
| | - Subbarao V Yalla
- Department of Urology, VA Boston Healthcare System, Harvard Medical School
| | - Kazem M Azadzoi
- Department of Urology.,Department of Pathology, VA Boston Healthcare System, Boston University School of Medicine, Boston, MA, USA
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16
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Tsujimura A, Hiramatsu I, Aoki Y, Shimoyama H, Mizuno T, Nozaki T, Shirai M, Kobayashi K, Kumamoto Y, Horie S. Atherosclerosis is associated with erectile function and lower urinary tract symptoms, especially nocturia, in middle-aged men. Prostate Int 2017; 5:65-69. [PMID: 28593169 PMCID: PMC5448724 DOI: 10.1016/j.prnil.2017.01.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Revised: 01/06/2017] [Accepted: 01/09/2017] [Indexed: 01/09/2023] Open
Abstract
Background Atherosclerosis is a systematic disease in which plaque builds up inside the arteries that can lead to serious problems related to quality of life (QOL). Lower urinary tract symptoms (LUTS), erectile dysfunction (ED), and late-onset hypogonadism (LOH) are highly prevalent in aging men and are significantly associated with a reduced QOL. However, few questionnaire-based studies have fully examined the relation between atherosclerosis and several urological symptoms. Materials and methods The study comprised 303 outpatients who visited our clinic with symptoms of LOH. Several factors influencing atherosclerosis, including serum concentrations of triglyceride, fasting blood sugar, and total testosterone measured by radioimmunoassay, were investigated. We also measured brachial-ankle pulse wave velocity (baPWV) and assessed symptoms by specific questionnaires, including the Sexual Health Inventory for Men (SHIM), Erection Hardness Score (EHS), International Prostate Symptom Score (IPSS), QOL index, and Aging Male Symptoms rating scale (AMS). Stepwise associations between the ratio of measured/age standard baPWV and clinical factors including laboratory data and the scores of the questionnaires were compared using the Jonckheere–Terpstra test for trend. The associations between the ratio of measured/age standard baPWV and each IPSS score were assessed in a multivariate linear regression model after adjustment for serum triglyceride, fasting blood sugar, and total testosterone. Results Regarding ED, a higher level of the ratio of measured/age standard baPWV was associated with a lower EHS, whereas no association was found with SHIM. Regarding LUTS, a higher ratio of measured/age standard baPWV was associated with a higher IPSS and QOL index. However, there was no statistically significant difference between the ratio of measured/age standard baPWV and AMS. A multivariate linear regression model showed only nocturia to be associated with the ratio of measured/age standard baPWV for each IPSS score. Conclusion Atherosclerosis is associated with erectile function and LUTS, especially nocturia.
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Affiliation(s)
- Akira Tsujimura
- Department of Urology, Juntendo University Urayasu Hospital, Chiba, Japan.,Men's Health Clinic Tokyo, Marunouchi Chiyoda-ku, Tokyo, Japan
| | - Ippei Hiramatsu
- Department of Urology, Juntendo University Urayasu Hospital, Chiba, Japan.,Department of Urology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Yusuke Aoki
- Department of Urology, Juntendo University Urayasu Hospital, Chiba, Japan.,Department of Urology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Hirofumi Shimoyama
- Department of Urology, Juntendo University Urayasu Hospital, Chiba, Japan.,Department of Urology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Taiki Mizuno
- Department of Urology, Juntendo University Urayasu Hospital, Chiba, Japan
| | - Taiji Nozaki
- Department of Urology, Juntendo University Urayasu Hospital, Chiba, Japan
| | - Masato Shirai
- Department of Urology, Juntendo University Urayasu Hospital, Chiba, Japan
| | | | | | - Shigeo Horie
- Men's Health Clinic Tokyo, Marunouchi Chiyoda-ku, Tokyo, Japan.,Department of Urology, Juntendo University Graduate School of Medicine, Tokyo, Japan
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17
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Thurmond P, Yang JH, Azadzoi KM. LUTS in pelvic ischemia: a new concept in voiding dysfunction. Am J Physiol Renal Physiol 2016; 310:F738-F743. [DOI: 10.1152/ajprenal.00333.2015] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Accepted: 01/13/2016] [Indexed: 01/27/2023] Open
Abstract
Lower urinary tract symptoms (LUTS) are a group of voiding symptoms affecting both genders as they age. Traditionally, LUTS in men were commonly attributed to bladder outlet obstruction (BOO) due to benign prostatic enlargement (BPE). It was later shown that, in approximately one-third to more than one-half of cases, LUTS in men are not associated with BOO. Urodynamic changes in the male bladder and symptom scores in aging men were found to be identical to their age-matched female counterparts. These observations suggested that LUTS in the elderly do not necessarily relate to BOO and may result from local changes in bladder muscle, nerves, and blood vessels. However, aging factors predisposing to bladder dysfunction and LUTS remain unknown. Growing evidence suggests that aging-associated pelvic ischemia may be a primary factor in the development of nonobstructed nonneurogenic overactive bladder and LUTS. First identified in experimental models and later in clinical studies, pelvic ischemia has been shown to compromise the lower urinary tract structure and lead to dysfunction. Structural and functional consequences of bladder and prostate ischemia have been documented in animal models. Clinical studies have shown that bladder and prostate blood flow decreases with aging. The severity of LUTS in elderly patients correlates with the degrees of bladder ischemia. LUTS improvement with α blockers has been associated with increased bladder blood flow. Pelvic ischemia may be an independent factor in nonobstructed nonneurogenic bladder instability and LUTS. Further research into the pathophysiology of LUTS in pelvic ischemia may lead to better management of this problem in the elderly population.
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Affiliation(s)
- Portia Thurmond
- Department of Urology, Veterans Affairs Boston Healthcare System and Boston University School of Medicine, Boston, Massachusetts
| | - Jing-Hua Yang
- Department of Urology, Veterans Affairs Boston Healthcare System and Boston University School of Medicine, Boston, Massachusetts; and
| | - Kazem M. Azadzoi
- Department of Urology and Department of Pathology, Veterans Affairs Boston Healthcare System and Boston University School of Medicine, Boston, Massachusetts
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18
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Kullmann FA, Birder LA, Andersson KE. Translational Research and Functional Changes in Voiding Function in Older Adults. Clin Geriatr Med 2015; 31:535-48. [PMID: 26476114 PMCID: PMC4865381 DOI: 10.1016/j.cger.2015.06.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Age-related LUT dysfunctions result from complex processes controlled by multiple genetic, epigenetic, and environmental factors and account for high costs of health care. This article discusses risk factors that may play a role in age-related LUT dysfunction and presents available data comparing structural and functional changes that occur with aging in the bladder of humans and animal models. A better understanding of factors and mechanisms underlying LUT symptoms in the older population may lead to therapeutic interventions to reduce these dysfunctions.
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Affiliation(s)
- Florenta Aura Kullmann
- Renal-Electrolyte Division, Medicine Department, University of Pittsburgh School of Medicine, 3500 Terrace Street, A1220 Scaife Hall, Pittsburgh, PA 15261, USA
| | - Lori Ann Birder
- Renal-Electrolyte Division, Medicine Department, University of Pittsburgh School of Medicine, 3500 Terrace Street, A1207 Scaife Hall, Pittsburgh, PA 15261, USA; Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, 200 Lothrop Street, Pittsburgh, PA 15213, USA
| | - Karl-Erik Andersson
- Department of Urology, Institute for Regenerative Medicine, Wake Forest Baptist Medical Center, Wake Forest University School of Medicine, Medical Center Boulevard, Winston Salem, NC 27157, USA; AIAS, Aarhus Institute of Advanced Studies, Aarhus University, Høegh-Guldbergs Gade 6B, Building 1632, Aarhus C 8000, Denmark.
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19
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Yabe M, Haga N, Ogawa S, Kataoka M, Akaihata H, Sato Y, Hata J, Ishibashi K, Kojima Y. Atherosclerosis as a predictor of delayed recovery from lower urinary tract dysfunction after robot-assisted laparoscopic radical prostatectomy. Neurourol Urodyn 2015; 35:920-925. [PMID: 26297155 DOI: 10.1002/nau.22824] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Accepted: 06/16/2015] [Indexed: 11/10/2022]
Abstract
AIMS The aim of the present study was to investigate whether atherosclerosis could be associated with lower urinary tract dysfunction in the early postoperative period after robot-assisted laparoscopic radical prostatectomy (RARP). METHODS Eighty consecutive patients undergoing RARP were investigated. The severity of atherosclerosis was evaluated by the cardio-ankle vascular index (CAVI) before RARP. Patients were divided into two groups, the atherosclerotic group (CAVI ≥9.0) and the control group (CAVI <9.0). International Prostate Symptom Score (IPSS), quality of life (QOL) index, uroflowmetry, post-void residual urine volume (PVR), frequency-volume charts, and the 1-hr pad test were compared between the two groups. Assessments were performed before RARP, and then at 1, 3, and 6 months after RARP. RESULTS Preoperative subjective and objective parameters were not significantly different between the two groups. The voiding symptom score of the IPSS and the QOL index was significantly higher in the atherosclerotic group at 3 months after RARP (P = 0.035, P = 0.001, respectively). The maximum flow rate was consistently lower in the atherosclerotic group, reaching a significant difference at 6 months after RARP (P = 0.027). IPSS total and storage symptom scores, PVR, frequency, and urine loss were not significantly different between the groups after RARP. CONCLUSIONS Atherosclerosis delayed the improvement of both voiding symptoms and voiding function after RARP, leading to aggravation of QOL in the early postoperative period. Atherosclerosis may be a predictor of slower recovery from transient lower urinary tract dysfunction immediately after RARP. Neurourol. Urodynam. 35:920-925, 2016. © 2015 Wiley Periodicals, Inc.
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Affiliation(s)
- Michihiro Yabe
- Department of Urology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Nobuhiro Haga
- Department of Urology, Fukushima Medical University School of Medicine, Fukushima, Japan.
| | - Soichiro Ogawa
- Department of Urology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Masao Kataoka
- Department of Urology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Hidenori Akaihata
- Department of Urology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Yuichi Sato
- Department of Urology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Junya Hata
- Department of Urology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Kei Ishibashi
- Department of Urology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Yoshiyuki Kojima
- Department of Urology, Fukushima Medical University School of Medicine, Fukushima, Japan
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20
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Nomiya M, Andersson KE, Yamaguchi O. Chronic bladder ischemia and oxidative stress: New pharmacotherapeutic targets for lower urinary tract symptoms. Int J Urol 2014; 22:40-6. [DOI: 10.1111/iju.12652] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2014] [Accepted: 09/15/2014] [Indexed: 11/27/2022]
Affiliation(s)
- Masanori Nomiya
- Division of Bioengineering and LUTD Research; Nihon University School of Engineering; Koriyama Japan
| | - Karl-Erik Andersson
- Institute for Regenerative Medicine; Wake Forest University School of Medicine; Winston-Salem North Carolina USA
- Aarhus Institute for Advanced Studies; Aarhus University; Aarhus Denmark
| | - Osamu Yamaguchi
- Division of Bioengineering and LUTD Research; Nihon University School of Engineering; Koriyama Japan
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21
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Associations of carotid artery plaque with lower urinary tract symptoms and erectile dysfunction. Int Urol Nephrol 2014; 46:2263-70. [DOI: 10.1007/s11255-014-0830-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Accepted: 08/27/2014] [Indexed: 10/24/2022]
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22
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Motoya T, Matsumoto S, Yamaguchi S, Wada N, Numata A, Osanai H, Kakizaki H. The impact of abdominal aortic calcification and visceral fat obesity on lower urinary tract symptoms in patients with benign prostatic hyperplasia. Int Urol Nephrol 2014; 46:1877-81. [PMID: 24908284 DOI: 10.1007/s11255-014-0757-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Accepted: 05/27/2014] [Indexed: 10/25/2022]
Abstract
OBJECTIVES To investigate the impact of abdominal aortic calcification and visceral fat area (VFA) on lower urinary tract symptoms (LUTS) and clinical parameters in patients with benign prostatic hyperplasia (BPH). METHODS We retrospectively studied 250 patients with LUTS associated with BPH. Each participant was examined with routine examination including measurement of various data; (1) voided volume (VV), maximum urinary flow rate on free uroflowmetry, (2) postvoid residual urine volume and prostate volume using transabdominal ultrasound, (3) International Prostate Symptom Score (IPSS) and Overactive Bladder Symptom Score (OABSS), and (4) aortic calcification index (ACI) and VFA were measured by abdominal CT. RESULTS Mean age of the patients was 72.4 ± 9.6 years. ACI significantly correlated with VV (P = 0.0392) and tended to correlate with maximum urinary flow rate, while ACI did not correlate with subjective symptoms. VFA significantly correlated with nocturia score of IPSS (P = 0.0177) and frequency score of OABSS (P = 0.0166) and tended to correlate with urgency score of IPSS and maximum urinary flow rate. CONCLUSIONS Aortic calcification index (ACI) correlated with only objective parameters, while VFA correlated with only storage symptoms. This study suggested that abdominal aortic calcification and VFA have certain influence on LUTS and clinical parameters in patients with BPH.
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Affiliation(s)
- Tadasu Motoya
- Department of Renal and Urologic Surgery, Asahikawa Medical University, 2-1-1-1, Midorigaoka-Higashi, Asahikawa, Hokkaido, 078-8510, Japan
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Abstract
OBJECTIVE The current study was carried out to investigate the impact of atherosclerosis on lower urinary tract function in the male patients with lower urinary tract symptoms (LUTS). PATIENTS AND METHODS This prospective study evaluated 110 male patients aged 55-75 years who were presented with LUTS. All patients underwent general and local investigations. The atherosclerosis was assessed by ultrasound examination of the carotid artery. Patients then were divided into two groups: non-atherosclerosis group (Group 1) and atherosclerosis group (Group 2). The two groups were compared regarding voiding and storage parameters. RESULTS Mean patient age were 67.9 ± 5.9 years. The average age and number of Group 1 was 65.7 ± 4.3, n = 51. The average age and number of Group 2 was 68.7 ± 5.3, n = 59. There were no significant differences in age, prostate volume, blood pressure, International Prostate Symptom Score, Voiding symptom score and Storage symptom score between the two groups. Blood serum triglycerides were significantly lower in Group 1 than Group 2 while HDL cholesterol were significantly higher in Group 1 than Group 2 0.97 ± 0.5 and 1.43 ± 0.2 mmol/L, versus 1.46 ± 0.7 and 1.28 ± 0.3 mmol/L, respectively. Qmax denotes significant decrease in Group 2 compared with Group 1 12.5 ± 6.3 versus 17.6 ± 6.5, respectively (p < 0.01). While in post-voiding residual urine, there was a significant increase in Group 2 compared with Group 1 82.2 ± 15.4 versus 51.4 ± 12.7, respectively (p < 0.01). Daytime voided urine denotes a significant decrease in Group 2 176 ± 48, compared with Group 1 221.2 ± 79 (p < 0.01). Daytime frequency and nocturia, were significantly higher in Group 2, compared with Group 1 8.90 ± 2.8 versus 7.16 ± 3.11, respectively, and 3.1 ± 1.2 versus 1.92 ± 1.12, respectively (p < 0.05). CONCLUSION The atherosclerosis disease play a significant role in the impairments of both voiding and storage function in male patients with LUTS irrelevant to the age.
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Affiliation(s)
- Sherif Azab
- October 6 University, Urology, Cairo, Egypt.
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Goi Y, Tomiyama Y, Nomiya M, Sagawa K, Aikawa K, Yamaguchi O. Effects of silodosin, a selective α1A-adrenoceptor antagonist, on bladder blood flow and bladder function in a rat model of atherosclerosis induced chronic bladder ischemia without bladder outlet obstruction. J Urol 2013; 190:1116-22. [PMID: 23545103 DOI: 10.1016/j.juro.2013.03.110] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2013] [Accepted: 03/26/2013] [Indexed: 11/16/2022]
Abstract
PURPOSE We investigated the effects of the selective α1A-adrenoceptor antagonist silodosin on bladder blood flow and bladder function in a rat model of atherosclerosis induced chronic bladder ischemia without bladder outlet obstruction. MATERIALS AND METHODS The chronic bladder ischemia model was prepared by creating balloon endothelial injury of the bilateral iliac arteries in male rats. Using an osmotic pump, chronic bladder ischemia rats received silodosin subcutaneously at a rate of 0.1 or 0.3 mg/kg per day, or vehicle for 8 weeks. All groups received a 2% cholesterol diet throughout the experiment. For each α1-adrenoceptor subtype mRNA expression in bladder microvessels was examined by in situ hybridization. Bladder blood flow was measured using a laser speckle blood flow imager. Malondialdehyde in bladder tissue and 8-hydroxy-2'-deoxyguanosine in urine were measured as markers of oxidative stress. A metabolic cage study and cystometry were performed in conscious rats. RESULTS The expression of all α1-adrenoceptor subtype mRNA was observed in rat bladder microvessels. Silodosin abrogated the decreased bladder blood flow in the empty bladder and during bladder distention that were evident in rats with chronic bladder ischemia. Levels of oxidative stress markers in these rats were significantly decreased by silodosin administration. Silodosin ameliorated bladder dysfunction in rats with chronic bladder ischemia in the metabolic cage study and on cystometry. CONCLUSIONS Results suggest that in ischemic conditions α1-adrenoceptor antagonists such as silodosin may improve bladder function by restoring bladder blood flow.
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Affiliation(s)
- Yoshiaki Goi
- Pharmacology Research Laboratory, Kissei Pharmaceutical Co. Ltd., Azumino City, Japan.
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Sagawa K, Aikawa K, Nomiya M, Ogawa S, Akaihata H, Takahashi N, Yamaguchi O, Kojima Y. Impaired detrusor contractility in a rat model of chronic bladder ischemia. Urology 2013; 81:1379.e9-14. [PMID: 23541227 DOI: 10.1016/j.urology.2013.02.013] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2012] [Revised: 01/24/2013] [Accepted: 02/09/2013] [Indexed: 11/29/2022]
Abstract
OBJECTIVE To examine the effect of chronic ischemia associated with vascular disorders on bladder function, we investigated bladder contractility and changes in morphology and nerve distribution in a rat model of chronic bladder ischemia. METHODS Adult male Sprague-Dawley rats were divided into arterial endothelial injury, sham, and control groups. The injury group underwent balloon endothelial injury of the iliac arteries and received a 2% cholesterol diet. The sham group was only incised bilaterally in the inguinal region and received the 2% cholesterol diet. The control group did not undergo any procedure and received a regular diet (0.09% cholesterol). All animals were euthanized after 8 weeks. Bladders were removed and weighed, and sections were used for muscle strip contraction and histologic analyses. Cross-sections of dissected common iliac arteries were examined histologically. RESULTS Bladder contractile response and tension were significantly decreased in the injury group compared with the sham and control groups. Tissue from the injury group exhibited marked arterial occlusion with wall thickening. In the injury group, the collagen and muscle ratio (0.80 ± 0.12) was significantly greater than in the control (P = .01) and sham (P = .04) groups. Significantly fewer protein gene product 9.5 (PGP9.5)-positive nerve fibers were found in the injury group (513 ± 53) than in the control (P = .01) and sham (P = .03) groups. CONCLUSION Vascular occlusive disorders cause fibrosis and reduce the number of nerves innervating the bladder, which leads to decreased bladder contractility in a rat model of chronic bladder ischemia.
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Affiliation(s)
- Koji Sagawa
- Department of Urology, Fukushima Medical University School of Medicine, Hikarigaoka, Fukushima 960-1295, Japan.
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