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Burns RT, Arnold PJ, Song L, Moss KL, Powell CR. An analysis of urodynamic parameters in diabetic and nondiabetic women. Neurourol Urodyn 2024; 43:1600-1608. [PMID: 38808694 DOI: 10.1002/nau.25510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2024] [Revised: 05/02/2024] [Accepted: 05/17/2024] [Indexed: 05/30/2024]
Abstract
OBJECTIVES Diabetes is highly prevalent worldwide, with an estimated 536 million living with diabetes in 2021, and that number projected to increase to 783 million by 2045. Diabetic bladder dysfunction is thought to affect up to 60%-90% of individuals with diabetes and can significantly impact quality of life. Despite the prevalence of diabetic bladder dysfunction, the exact pathophysiological mechanism, and resulting clinical presentation, remains debated. Our objective was to compare urodynamic parameters between diabetic and nondiabetic women, assessing the impact of various markers of diabetes severity on bladder function. METHODS A retrospective chart review was conducted on female patients aged 18 and above who underwent urodynamic studies at a single tertiary care university hospital system from 2014 to 2020. Patients were categorized based on diabetes status, and diabetes severity including duration of disease, hemoglobin A1c levels, insulin dependence, and markers of end-organ dysfunction. Urodynamic variables, including compliance, bladder voided efficiency, bladder contractility index, postvoid residual, maximum flow rate, capacity, voided volume, and detrusor overactivity, were assessed by two independent reviewers. Statistical analyses were performed to assess the impact of diabetes and diabetic severity on urodynamic parameters. RESULTS A total of 652 female patients were included in the study, of which, 152 (23.3%) had diabetes, with an average duration of diagnosis of 82.3 months. Diabetic women were older and had higher body mass index compared to nondiabetic women. Diabetic retinopathy and neuropathy were present in 18% and 54.6% of diabetic patients, respectively. Significant differences in urodynamic parameters were observed between diabetic and nondiabetic women, with diabetic women showing higher rates of detrusor overactivity (p = 0.01), particularly associated with increasing BMI (p = 0.03). However, classic markers of diabetes severity including duration, as well as markers of end-organ damage, showed mixed associations with urodynamic changes. CONCLUSIONS Despite the prevalence of diabetic bladder dysfunction and its impact on patient quality of life, the exact mechanisms and clinical presentation remain elusive. Our study highlights the significant differences in urodynamic parameters between diabetic and nondiabetic women, emphasizing the need for further research into the relationship between diabetes and diabetic bladder dysfunction.
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Affiliation(s)
- Ramzy T Burns
- Department of Urology, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Peter J Arnold
- Department of Urology, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Leo Song
- Department of Urology, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Kevin L Moss
- Department of Biostatistics and Health Data Science, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Charles R Powell
- Department of Urology, Indiana University School of Medicine, Indianapolis, Indiana, USA
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Rasmussen VF, Thrysøe M, Karlsson P, Madsen M, Vestergaard ET, Nyengaard JR, Terkelsen AJ, Kamperis K, Kristensen K. Bladder dysfunction in adolescents with type 1 diabetes. J Pediatr Urol 2024; 20:564.e1-564.e9. [PMID: 38705761 DOI: 10.1016/j.jpurol.2024.04.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 02/26/2024] [Accepted: 04/09/2024] [Indexed: 05/07/2024]
Abstract
BACKGROUND It is increasingly significant that adults with diabetes experience lower urinary tract symptoms, however, there has been limited research in younger individuals with type 1 diabetes. OBJECTIVE To investigate bladder function using non-invasive urodynamics as a potential indicator of autonomic neuropathy in adolescents with type 1 diabetes. This involved examining the association between urinary flow disturbances, reported symptoms, and results from other autonomic tests. STUDY DESIGN Cross-sectional study enrolling 49 adolescents with type 1 diabetes and 18 control subjects. All participants underwent uroflowmetry and ultrasound scanning, completed the Composite Autonomic Symptom Score (COMPASS)-31 questionnaire, and were instructed to record their morning urine volume and voiding frequencies and report them back. Cardiovascular reflex tests (CARTs) and the quantitative sudomotor axon reflex test (QSART) were performed. RESULTS The main results are shown in the Summary figure. DISCUSSION In this study, urological abnormalities were not significantly more frequent in adolescents with diabetes, however, urological issues were observed. This is supported by previous findings of Szabo et al. who found that adolescents with type 1 diabetes had reduced flow acceleration and time to maximum flow compared to control subjects. In our study, we observed cases with reduced acceleration and prolonged uroflow curves, possibly indicating detrusor underactivity. People with diabetes had a higher risk of nocturia than healthy controls, which our results supported. Some adolescents reported urination twice per night. Based on these findings, it is considered beneficial to ask about urological symptoms annually to determine if more examinations (frequency-volume charts and uroflowmetry) are necessary and/or if any opportunities for treatment optimization exist. However, uroflowmetry has limitations, as bladder filling and emptying is a complex process involving multiple pathways and neurological centers, making it difficult to standardize and evaluate. Another limitation of this study was that our control group was smaller and consisted of fewer males than females, which could affect the results due to differences in anatomy and physiology in the lower urinary tract system. CONCLUSION In conclusion, adolescents with type 1 diabetes, as well as healthy adolescents, frequently experience urological symptoms. Although urological abnormalities were not significantly more frequent in adolescents with diabetes in this study, the focus on nocturia and risk for bladder dysfunction seems relevant, even in adolescents without any other tests indicating autonomic dysfunction.
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Affiliation(s)
- Vinni Faber Rasmussen
- Danish Pain Research Center, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark; Steno Diabetes Center Aarhus, Aarhus University Hospital, Denmark; Department of Pediatrics and Adolescents, Randers Regional Hospital, Randers, Denmark.
| | - Mathilde Thrysøe
- Danish Pain Research Center, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Páll Karlsson
- Danish Pain Research Center, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark; Core Centre for Molecular Morphology, Section for Stereology and Microscopy, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Mette Madsen
- Steno Diabetes Center North Denmark, Aalborg, Denmark; Department of Pediatric and Adolescents Medicine, Aalborg University Hospital, Aalborg, Denmark
| | | | - Jens Randel Nyengaard
- Core Centre for Molecular Morphology, Section for Stereology and Microscopy, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark; Department of Pathology, Aarhus University Hospital, Aarhus, Denmark
| | - Astrid Juhl Terkelsen
- Danish Pain Research Center, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark; Department of Neurology, Aarhus University Hospital, Aarhus, Denmark
| | - Konstantinos Kamperis
- Department of Pediatric and Adolescents Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - Kurt Kristensen
- Steno Diabetes Center Aarhus, Aarhus University Hospital, Denmark
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Olson J, Mo KC, Schmerler J, Durand WM, Kebaish KM, Skolasky RL, Neuman BJ. Impact of Controlled Versus Uncontrolled mFI-5 Frailty on Perioperative Complications After Adult Spinal Deformity Surgery. Clin Spine Surg 2024:01933606-990000000-00285. [PMID: 38531820 DOI: 10.1097/bsd.0000000000001595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 01/22/2024] [Indexed: 03/28/2024]
Abstract
STUDY DESIGN Retrospective review. OBJECTIVES We substratified the mFI-5 frailty index to reflect controlled and uncontrolled conditions and assess their relationship to perioperative complications. SUMMARY OF BACKGROUND DATA Risk assessment before adult spinal deformity (ASD) surgery is critical because the surgery is highly invasive with a high complication rate. Although frailty is associated with risk of surgical complications, current frailty measures do not differentiate between controlled and uncontrolled conditions. METHODS Frailty was calculated using the mFI-5 index for 170 ASD patients with fusion of ≥5 levels. Uncontrolled frailty was defined as blood pressure >140/90 mm Hg, HbA1C >7% or postprandial glucose >180 mg/dL, or recent chronic obstructive pulmonary disease (COPD) exacerbation, while on medication. Patients were divided into nonfrailty, controlled frailty, and uncontrolled frailty cohorts. The primary outcome measure was perioperative major and wound complications. Bivariate analysis was performed. Multivariable analysis assessed the relationship between frailty and perioperative complications. RESULTS The cohorts included 97 nonfrail, 54 controlled frail, and 19 uncontrolled frail patients. Compared with nonfrail patients, patients with uncontrolled frailty were more likely to have age older than 60 years (84% vs. 24%), hyperlipidemia (42% vs. 20%), and Oswestry Disability Index (ODI) score >42 (84% vs. 52%) (P<0.05 for all). Controlled frailty was associated with those older than 60 years (41% vs. 24%) and hyperlipidemia (52% vs. 20%) (P<0.05 for all). On multivariable regression analysis controlling for hyperlipidemia, functional independence, motor weakness, ODI>42, and age older than 60 years, patients with uncontrolled frailty had greater odds of major complications (OR 4.24, P=0.03) and wound complications (OR 9.47, P=0.046) compared with nonfrail patients. Controlled frailty was not associated with increased risk of perioperative complications (P>0.05 for all). CONCLUSIONS Although patients with uncontrolled frailty had higher risk of perioperative complications compared with nonfrail patients, patients with controlled frailty did not, suggesting the importance of controlling modifiable risk factors before surgery. LEVEL OF EVIDENCE 3.
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Affiliation(s)
- Jarod Olson
- Department of Orthopaedic Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD
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Chen X, Yao S, Peng C, Wu K, Lang H, Chen N. Association between diabetes mellitus and postoperative urinary retention after cerebral angiography. Neurourol Urodyn 2024; 43:105-113. [PMID: 37787526 DOI: 10.1002/nau.25296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 09/20/2023] [Indexed: 10/04/2023]
Abstract
AIMS The aim of this study is to examine the association between diabetes mellitus and postoperative urinary retention on cerebral angiography (including intravascular interventional therapy). METHODS We collected data on the demographic characteristics and comorbidities, imaging and routine laboratory data, surgical information, and medications of patients who underwent cerebral angiography. Multivariate logistic regression was used to explore the correlation between diabetes and the incidence of postoperative urinary retention. RESULTS A total of 932 patients were included, with a mean age of 59.7 years (74.1% men). Postoperative urinary retention occurred in 40.8% of the diabetes mellitus group and 30.3% of the group without diabetes. Compared with the group without diabetes, those with diabetes were more likely to experience postoperative urinary retention. Patients with higher glycosylated hemoglobin A1c levels had a higher risk of developing postoperative urinary retention. CONCLUSIONS Diabetes was independently linked to postoperative urinary retention following cerebral angiography and patients with glycosylated hemoglobin A1c levels > 6% were more likely to experience postoperative urinary retention. Therefore, clinically regulating blood glucose levels may help to reduce the likelihood of postoperative urinary retention after cerebral angiography.
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Affiliation(s)
- Xiwen Chen
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, China
| | - Shaoli Yao
- Department of Neurology, Hospital of Chengdu Office of People's Government of Tibet Autonomous Region, Chengdu, China
| | - Cheng Peng
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, China
| | - Kongyuan Wu
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, China
| | - Hui Lang
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, China
| | - Ning Chen
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, China
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Oliveira AL, Medeiros ML, Gomes EDT, Mello GC, Costa SKP, Mónica FZ, Antunes E. TRPA1 channel mediates methylglyoxal-induced mouse bladder dysfunction. Front Physiol 2023; 14:1308077. [PMID: 38143915 PMCID: PMC10739337 DOI: 10.3389/fphys.2023.1308077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Accepted: 11/27/2023] [Indexed: 12/26/2023] Open
Abstract
Introduction: The transient receptor potential ankyrin 1 channel (TRPA1) is expressed in urothelial cells and bladder nerve endings. Hyperglycemia in diabetic individuals induces accumulation of the highly reactive dicarbonyl compound methylglyoxal (MGO), which modulates TRPA1 activity. Long-term oral intake of MGO causes mouse bladder dysfunction. We hypothesized that TRPA1 takes part in the machinery that leads to MGO-induced bladder dysfunction. Therefore, we evaluated TRPA1 expression in the bladder and the effects of 1 h-intravesical infusion of the selective TRPA1 blocker HC-030031 (1 nmol/min) on MGO-induced cystometric alterations. Methods: Five-week-old female C57BL/6 mice received 0.5% MGO in their drinking water for 12 weeks, whereas control mice received tap water alone. Results: Compared to the control group, the protein levels and immunostaining for the MGO-derived hydroimidazolone isomer MG-H1 was increased in bladders of the MGO group, as observed in urothelium and detrusor smooth muscle. TRPA1 protein expression was significantly higher in bladder tissues of MGO compared to control group with TRPA1 immunostaining both lamina propria and urothelium, but not the detrusor smooth muscle. Void spot assays in conscious mice revealed an overactive bladder phenotype in MGO-treated mice characterized by increased number of voids and reduced volume per void. Filling cystometry in anaesthetized animals revealed an increased voiding frequency, reduced bladder capacity, and reduced voided volume in MGO compared to vehicle group, which were all reversed by HC-030031 infusion. Conclusion: TRPA1 activation is implicated in MGO-induced mouse overactive bladder. TRPA1 blockers may be useful to treat diabetic bladder dysfunction in individuals with high MGO levels.
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Affiliation(s)
- Akila L. Oliveira
- Department of Pharmacology, University of Campinas (UNICAMP), São Paulo, Brazil
| | - Matheus L. Medeiros
- Department of Pharmacology, University of Campinas (UNICAMP), São Paulo, Brazil
| | | | | | - Soraia Katia Pereira Costa
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo (USP), São Paulo, Brazil
| | - Fabíola Z. Mónica
- Department of Pharmacology, University of Campinas (UNICAMP), São Paulo, Brazil
| | - Edson Antunes
- Department of Pharmacology, University of Campinas (UNICAMP), São Paulo, Brazil
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Khan J, Shaw S. Risk of multiple lower and upper urinary tract problems among male older adults with type-2 diabetes: a population-based study. Aging Male 2023; 26:2208658. [PMID: 37256730 DOI: 10.1080/13685538.2023.2208658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 04/10/2023] [Accepted: 04/21/2023] [Indexed: 06/02/2023] Open
Abstract
AIM This study explores the risk of diabetes-associated lower and upper urinary tract diseases among male older adults aged 45 and above in India. METHODS Longitudinal Ageing Study in India (LASI), 2017-2018 data was used in this study. The prevalence of various urinary tract problems and diabetes among male older adults was estimated by background characteristics using bivariate cross-tabulation. In addition, multivariate logistic regression was applied to examine the likelihood of urological disorders associated with diabetes. RESULT The prevalence of incontinence was highest among male older adults with diabetes, followed by kidney stones, benign prostatic hyperplasia, and chronic renal failure. Multivariate logistic regression estimation showed that men diagnosed with diabetes were 80% more likely to experience chronic renal failure, 78% more likely to suffer from incontinence, and 37% more likely to suffer from kidney stones than those without diabetes when controlling for various socio-demographic, behavioral, and co-morbidity status of the older adults. CONCLUSIONS The study findings suggest that diabetes is associated with multiple urinary complications among male older adults in India and needs more careful investigation of the phenomenon. Independent risk factors such as changes in lifestyle with regular monitoring and diagnosis may help to prevent the progression of diabetes and reduce the risk of diabetes-associated lower and upper urinary tract diseases among male older adults.
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Affiliation(s)
- Junaid Khan
- International Institute for Population Sciences, Mumbai, India
| | - Subhojit Shaw
- International Institute for Population Sciences, Mumbai, India
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Sirmakesyan S, Hajj A, Hamouda A, Cammisotto P, Campeau L. Synthesis and secretion of Nerve Growth Factor is regulated by Nitric Oxide in bladder cells in vitro under a hyperglycemic environment. Nitric Oxide 2023; 140-141:30-40. [PMID: 37699453 DOI: 10.1016/j.niox.2023.09.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 08/23/2023] [Accepted: 09/09/2023] [Indexed: 09/14/2023]
Abstract
Urine samples of female patients with overactive bladder (OAB) are characterized by low levels of nerve growth factor (NGF) and elevated concentrations of nitric oxide (NO) compared to healthy controls. We therefore examined how NO might regulate NGF synthesis using rat bladder smooth muscle (SMCs) and urothelial (UROs) cells in culture. In UROs, incubation in hyperglycemic conditions to mimic insulin insensitivity present in the OAB cohort increased secretion of NO and concomitantly decreased NGF, except when the NO synthase inhibitor, l-NAME (1 mM) was present. Sodium nitroprusside (SNP) (300 μM, 24 h), a NO generator, decreased NGF levels and decreased cyclic GMP (cGMP) content, a process validated by the cGMP synthase inhibitor ODQ (100 μM). Alternatively, SNP increased mRNA of both NGF and matrix metalloproteinase-9 (MMP-9). MMP-9 knockout of UROs by Crispr-Cas9 potently decreased the effect of SNP on NGF, implying a dependent role of NO on MMP-9. On the other hand, matrix metalloproteinase-7 (MMP-7) activity was increased by SNP, which taken together with increase in NGF mRNA, suggests a compensatory mechanism. In SMCs, hyperglycemic conditions had the same effect on extracellular content of NO and NGF than in UROs. SNP also decreased NGF secretion but increased cGMP content. Stable permeable analogs of cGMP 8-(4-Chlorophenylthio)-cGMP (1 mM) and N2,2'-O-Dibutyryl-cGMP (3 mM) inhibited NGF release. NGF and MMP-9 mRNA expression was unchanged by SNP. Deletion of MMP-9 in SMCs by Crispr-Cas9 did not alter the effect of SNP. Finally, SNP decreased MMP-7 activity, diminishing the conversion of proNGF to NGF. These results demonstrate that enhanced NO secretion triggered by high glucose decreases NGF secretion through pathways unique for each cell type that involve cGMP and proteases MMP-7 and MMP-9. These results might help to explain our observations from the urine from patients with OAB associated with metabolic syndrome.
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Affiliation(s)
| | - Aya Hajj
- Lady Davis Institute for Medical Research, Montreal, Quebec, Canada
| | - Aalya Hamouda
- Lady Davis Institute for Medical Research, Montreal, Quebec, Canada
| | | | - Lysanne Campeau
- Lady Davis Institute for Medical Research, Montreal, Quebec, Canada; Urology Department, Jewish General Hospital, Montreal, Quebec, Canada.
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Wang J, Ren L, Liu X, Liu J, Ling Q. Underactive Bladder and Detrusor Underactivity: New Advances and Prospectives. Int J Mol Sci 2023; 24:15517. [PMID: 37958499 PMCID: PMC10648240 DOI: 10.3390/ijms242115517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 10/20/2023] [Accepted: 10/22/2023] [Indexed: 11/15/2023] Open
Abstract
Underactive bladder (UAB) is a prevalent but under-researched lower urinary tract symptom that typically occurs alongside detrusor underactivity (DU). Unlike UAB, DU is a urodynamic diagnosis which the International Continence Society (ICS) defines as "a contraction of reduced strength and/or duration, resulting in prolonged bladder emptying and/or a failure to achieve complete bladder emptying within a normal time span". Despite the widespread prevalence of UAB/DU, there are significant gaps in our understanding of its pathophysiological mechanisms, diagnosis, and treatment compared with overactive bladder (OAB) and detrusor overactivity (DO). These gaps are such that clinicians regard UAB/DU as an incurable condition. In recent years, the understanding of UAB has increased. The definition of UAB has been clarified, and the diagnostic criteria for DU have been considered more comprehensively. Meanwhile, a number of non-invasive diagnostic methods have also been reported. Clinical trials involving novel drugs, electrical stimulation, and stem cell therapy have shown promising results. Therefore, this review summarizes recent reports on UAB and DU and highlights the latest advances in their diagnosis and treatment.
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Affiliation(s)
- Jiaxin Wang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (J.W.)
- Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Lida Ren
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (J.W.)
- Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Xinqi Liu
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (J.W.)
- Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Jihong Liu
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (J.W.)
- Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Qing Ling
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (J.W.)
- Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
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Jasinski J, Tong D, Yoon E, Claus C, Lytle E, Houseman C, Bono P, Soo TM. Preventing Postoperative Urinary Retention (POUR) in Patients Undergoing Elective Lumbar Surgery: A Quality Improvement Project. Qual Manag Health Care 2023; 32:270-277. [PMID: 36913773 DOI: 10.1097/qmh.0000000000000394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023]
Abstract
BACKGROUND AND OBJECTIVES Postoperative urinary retention (POUR) is associated with significant morbidity. Our institution's POUR rate was elevated among patients undergoing elective lumbar spinal surgery. We sought to demonstrate that our quality improvement (QI) intervention would significantly lower our POUR rate and length of stay (LOS). METHODS A resident-led QI intervention was implemented from October 2017 to 2018 on 422 patients in an academically affiliated community teaching hospital. This consisted of standardized intraoperative indwelling catheter utilization, postoperative catheterization protocol, prophylactic tamsulosin, and early ambulation after surgery. Baseline data on 277 patients were collected retrospectively from October 2015 to September 2016. Primary outcomes were POUR and LOS. The focus, analyze, develop, execute, and evaluate (FADE) model was used. Multivariable analyses were used. P value <.05 was considered significant. RESULTS We analyzed 699 patients (277 pre-intervention vs 422 post-intervention). The POUR rate (6.9% vs 2.6%, Δ confidence interval [CI] 1.15-8.08, P = .007) and mean LOS (2.94 ± 1.87 days vs 2.56 ± 2.2 days, Δ CI 0.066-0.68, P = .017) were significantly improved following our intervention. Logistic regression demonstrated that the intervention was independently associated with significantly decreased odds for developing POUR (odds ratio [OR] = 0.38, CI 0.17-0.83, P = .015). Diabetes (OR = 2.25, CI 1.03-4.92, P = .04) and longer surgery duration (OR = 1.006, CI 1.002-1.01, P = .002) were independently associated with increased odds of developing POUR. CONCLUSIONS After implementing our POUR QI project for patients undergoing elective lumbar spine surgery, the institutional POUR rate significantly decreased by 4.3% (62% reduction) and LOS, by 0.37 days. We demonstrated that a standardized POUR care bundle was independently associated with a significant decrease in the odds of developing POUR.
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Affiliation(s)
- Jacob Jasinski
- Division of Neurosurgery, Ascension Providence Hospital, College of Human Medicine, Michigan State University, Southfield
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Chiu SH, Douglas FL, Chung JR, Wang KY, Chu CF, Chou HY, Huang WC, Wang TY, Chen WW, Shen MC, Liu FC, Hsiao PJ. Evaluation of the safety and potential lipid-lowering effects of oral hydrogen-rich coral calcium (HRCC) capsules in patients with metabolic syndrome: a prospective case series study. Front Nutr 2023; 10:1198524. [PMID: 37521410 PMCID: PMC10382134 DOI: 10.3389/fnut.2023.1198524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Accepted: 05/15/2023] [Indexed: 08/01/2023] Open
Abstract
Background Metabolic syndrome is characterized by a cluster-like occurrence of conditions such as hypertension, hyperglycaemia, elevated low-density lipoprotein (LDL) cholesterol or triglycerides (TG) and high visceral fat. Metabolic syndrome is linked to the build-up of plaque within the artery, which leads to disorders of the circulatory, nervous and immune systems. A variety of treatments target the regulation of these conditions; nevertheless, they remain dominant risk factors for the development of type 2 diabetes (T2DM) and cardiovascular disease (CVD), which affect 26.9% of the US population. Management and intervention strategies for improving cholesterol and/or TG are worthwhile, and recent studies on hydrogen treatment are promising, particularly as molecular hydrogen is easily ingested. This study aimed to investigate the lipid-lowering effects and quality of life (QOL) improvement of hydrogen-rich coral calcium (HRCC) in patients with metabolic syndrome. Methods The patients, all Taiwanese, were randomly assigned to 3 different doses (low, medium, and high) of HRCC capsules. The primary outcome was the adverse effects/symptoms during this 4-week use of HRCC capsules. The secondary outcome was lipid profile changes. Complete blood count, inflammatory biomarkers, and QOL were also measured before and after the course of HRCC. Results Sixteen patients with metabolic syndrome completed this study (7 males, 9 females; mean age: 62 years; range: 32-80). No obvious adverse effects were recorded. Only changes in blood TG reached significance. The baseline TG value was 193.19 μL (SD = 107.44), which decreased to 151.75 μL (SD = 45.27) after 4 weeks of HRCC (p = 0.04). QOL showed no significant changes. Conclusion This study is the first human clinical trial evaluating HRCC capsules in patients with metabolic syndrome. Based on the safety and potential TG-lowering effects of short-term HRCC, further long-term investigations of HRCC are warranted. Clinical trial registration [ClinicalTrials.gov], identifier [NCT05196295].
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Affiliation(s)
- Szu-Han Chiu
- Division of Endocrinology and Metabolism, Department of Medicine, Armed Forces Taoyuan General Hospital, Taoyuan, Taiwan
| | | | | | | | | | | | | | | | - Wen-Wen Chen
- Department of Nursing, Min-Sheng General Hospital, Taoyuan, Taiwan
| | - Min-Chung Shen
- Rheumatology/Immunology and Allergy, Department of Medicine, Armed Forces Taoyuan General Hospital, Taoyuan, Taiwan
| | - Feng-Cheng Liu
- Rheumatology/Immunology and Allergy, Department of Medicine, Tri-Service General Hospital, National Defence Medical Center, Taipei, Taiwan
| | - Po-Jen Hsiao
- Division of Nephrology, Department of Internal Medicine, Taoyuan Armed Forces General Hospital, Taoyuan, Taiwan
- Division of Nephrology, Department of Internal Medicine, Tri-Service General Hospital, National Defence Medical Center, Taipei, Taiwan
- Department of Life Sciences, National Central University, Taoyuan, Taiwan
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Reed LA, Mihas AK, Fortin TA, Donley CJ, Pratheep G, Rajaram Manoharan S, Theiss SM, Viswanathan VK. Risk Factors for Postoperative Urinary Retention Following Lumbar Spine Surgery: A Review of Current Literature and Meta-Analysis. Global Spine J 2023; 13:1658-1670. [PMID: 36562179 PMCID: PMC10448081 DOI: 10.1177/21925682221146493] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
STUDY DESIGN Systematic Review and Meta-analysis. OBJECTIVE Postoperative urinary retention (POUR) is a common complication following lumbar spine surgery (LSS) and timely recognition is imperative to avoid long-term consequences. The aim of the current meta-analysis was to systematically review the literature in order to identify risk factors associated with POUR after LSS. METHODS In accordance with PRISMA guidelines, a systematic review of the literature was performed using Pubmed, EMBASE, and MEDLINE database for articles on POUR following LSS. A meta-analysis was performed comparing patients with and without POUR; and the factors associated with this adverse event were analyzed. The pooled data were reported as mean differences with 95% confidence intervals (CI; P < .05). Heterogeneity among the studies was evaluated using the I2 statistic. RESULTS The meta-analysis included 10 studies compromised of 30,300 patients. Based on our analysis, patients who were male, were older in age, underwent instrumented fusion, had diabetes mellitus, coronary artery disease, or benign prostatic hypertrophy had significantly higher risk of developing POUR. Additionally, patients in who developed POUR had significantly longer surgical times and higher volumes of intra-operative fluid administration, as compared with non-POUR patients. The POUR patients also had a significantly higher association with urinary tract infection. Prior surgery, BMI, length of stay, and smoking status did not reveal any statistical association with POUR. CONCLUSIONS Risk factors associated with POUR following LSS include male gender, older age, longer surgical times, fusion procedures, larger volumes of intraoperative infusions, and associated comorbidities like DM, CAD, and BPH.
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Affiliation(s)
- Logan A. Reed
- Department of Orthopaedic Surgery, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Alexander K. Mihas
- Department of Orthopaedic Surgery, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Travis A. Fortin
- Department of Orthopaedic Surgery, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Connor J. Donley
- Department of Orthopaedic Surgery, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Guna Pratheep
- Department of Spine Surgery, Ganga Medical Center and Hospitals, Coimbatore, India
| | | | - Steven M. Theiss
- Department of Orthopaedic Surgery, University of Alabama at Birmingham, Birmingham, AL, USA
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12
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Qudah S, Abufaraj M, Farah R, Almazeedi A, Ababneh A, Alnabulsi M, Qatawneh A, Hyassat D, Ajlouni K. The prevalence of overactive bladder and its impact on the quality of life: A cross-sectional study. Arab J Urol 2023; 22:39-47. [PMID: 38205386 PMCID: PMC10776079 DOI: 10.1080/2090598x.2023.2221403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Accepted: 05/30/2023] [Indexed: 01/12/2024] Open
Abstract
Objective Overactive bladder (OAB) is a common condition affecting both men and women and has been shown to affect the quality of life. We conducted this study to estimate the prevalence of OAB, and to incorporate symptom severity, symptom bother and health-related quality of life (HRQL) in the assessment of OAB and evaluate associated factors. Methodology A total of 940 participants were categorized into non-OAB and OAB using the Overactive Bladder Symptom Score (OABSS). HRQL and symptom bother were measured using the Overactive Bladder Questionnaire - Short Form (OAB-q SF). Descriptive analyses and multivariable regression analyses were performed. Results The prevalence of OAB among our population was 27.4%. Patients with older age (Odd ratio [OR] = 2.26, 95% confidence interval [CI]: 1.6-3), higher body mass index (BMI) (OR = 2.6, 95% CI: 1.8-3.8), comorbidities (OR = 2.6, 95% CI: 1.9-3.5) and history of recurrent urinary tract infection (UTI) s (OR = 1.9, 95% CI: 1.4-2.6) were significantly associated with increased risk of OAB (p < 0.001). The mean OAB symptom bothers score was 35.7 + 22.9 and increased significantly across OAB severity groups (p < 0.001). The mean HRQL score was 73.3 + 22 and a significant decreased across OAB severity groups (p < 0.001). All OAB symptoms showed significant positive correlation with increased symptom bother (p < 0.001) in addition to significant inverse correlation with HRQL (p < 0.001). Conclusion OAB is a prevalent condition in our population and the associated symptoms negatively affect HRQL. In this study, the detrimental effect is not exclusive to UUI and can be attributed to the other elements in the symptom spectrum of OAB. Screening for OAB should be considered during routine clinical visits using validated and reliable measures for early detection of symptoms and possible modification of risk factors to improve the outcome.
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Affiliation(s)
- Shrouq Qudah
- School of Medicine, The University of Jordan, Amman, Jordan
| | - Mohammad Abufaraj
- Division of Urology, Department of Special Surgery, Jordan University Hospital, Amman, Jordan
| | - Randa Farah
- Department of Internal Medicine, School of Medicine, Jordan University Hospital, Amman, Jordan
| | | | - Ali Ababneh
- Division of Urology, Department of Special Surgery, Jordan University Hospital, Amman, Jordan
| | - Mazen Alnabulsi
- Division of Urology, Department of Special Surgery, Jordan University Hospital, Amman, Jordan
| | - Ayman Qatawneh
- Department of Obstetrics and Gynecology, Faculty of Medicine, The University of Jordan, Amman, Jordan
| | - Dana Hyassat
- The National Center for Diabetes, Endocrinology and Genetic (NCDEG)/The University of Jordan, Amman, Jordan
| | - Kamel Ajlouni
- The National Center for Diabetes, Endocrinology and Genetic (NCDEG)/The University of Jordan, Amman, Jordan
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MacIver B, Bien EM, de Oliveira MG, Hill WG. A Spectrum of Age- and Gender-Dependent Lower Urinary Tract Phenotypes in Three Mouse Models of Type 2 Diabetes. Metabolites 2023; 13:710. [PMID: 37367868 DOI: 10.3390/metabo13060710] [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: 03/15/2023] [Revised: 05/16/2023] [Accepted: 05/23/2023] [Indexed: 06/28/2023] Open
Abstract
Lower urinary tract symptoms are extremely common in people with diabetes and obesity, but the causes are unclear. Furthermore, it has proven difficult to reliably demonstrate bladder dysfunction in diabetic mouse models, thus limiting the ability to gain mechanistic insights. Therefore, the main objective of this experimental study was to characterize diabetic bladder dysfunction in three promising polygenic mouse models of type 2 diabetes. We performed periodic assessments of glucose tolerance and micturition (void spot assay) for eight to twelve months. Males and females and high-fat diets were tested. NONcNZO10/LtJ mice did not develop bladder dysfunction over twelve months. TALLYHO/JngJ males were severely hyperglycemic from two months of age (fasted blood glucose ~550 mg/dL), while females were moderately so. Although males exhibited polyuria, neither they nor the females exhibited bladder dysfunction over nine months. KK.Cg-Ay/J males and females were extremely glucose intolerant. Males exhibited polyuria, a significant increase in voiding frequency at four months (compensation), followed by a rapid drop in voiding frequency by six months (decompensation) which was accompanied by a dramatic increase in urine leakage, indicating loss of outlet control. At eight months, male bladders were dilated. Females also developed polyuria but compensated with larger voids. We conclude KK.Cg-Ay/J male mice recapitulate key symptoms noted in patients and are the best model of the three to study diabetic bladder dysfunction.
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Affiliation(s)
- Bryce MacIver
- Laboratory of Voiding Dysfunction, Nephrology Division, Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, 99 Brookline Ave., Boston, MA 02215, USA
| | - Erica M Bien
- Laboratory of Voiding Dysfunction, Nephrology Division, Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, 99 Brookline Ave., Boston, MA 02215, USA
| | - Mariana G de Oliveira
- Department of Pharmacology, Faculty of Medical Sciences, University of Campinas (UNICAMP), Campinas 13083-970, SP, Brazil
| | - Warren G Hill
- Laboratory of Voiding Dysfunction, Nephrology Division, Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, 99 Brookline Ave., Boston, MA 02215, USA
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Dhiman S, Kurmi BD, Asati V. Analytical reversed‐phase high‐performance layer chromatography method development for silodosin and solifenacin in bulk and marketed formulation using analytical quality by design approach. SEPARATION SCIENCE PLUS 2022. [DOI: 10.1002/sscp.202200117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Shubham Dhiman
- Department of Pharmaceutical Analysis ISF College of Pharmacy Moga India
| | - Balak Das Kurmi
- Department of Pharmaceutics ISF College of Pharmacy Moga India
| | - Vivek Asati
- Department of Pharmaceutical Analysis ISF College of Pharmacy Moga India
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15
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Chen H, Wu A, Zeidel ML, Yu W. Smooth Muscle Insulin Receptor Deletion Causes Voiding Dysfunction: A Mechanism for Diabetic Bladder Dysfunction. Diabetes 2022; 71:2197-2208. [PMID: 35876633 PMCID: PMC9501730 DOI: 10.2337/db22-0233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Accepted: 07/20/2022] [Indexed: 01/03/2023]
Abstract
Diabetic bladder dysfunction (DBD) is the most common complication in diabetes. Myogenic abnormalities are common in DBD; however, the underlying mechanisms leading to these remain unclear. To understand the importance of smooth muscle insulin receptor (IR)-mediated signaling in the pathogenesis of DBD, we conditionally deleted it to achieve either heterozygous (SMIR+/-) or homozygous (SMIR-/-) deletion in smooth muscle cells. Despite impaired glucose and insulin tolerance seen with SMIR-/- mice, both SMIR+/- and SMIR-/- mice exhibited normal blood glucose and plasma insulin levels. Interestingly, these mice had abnormal voiding phenotypes, that included urinary frequency and small voids, and bladder smooth muscle (BSM) had significantly diminished contraction force. Morphology revealed a dilated bladder with thinner BSM layer, and BSM bundles were disorganized with penetrating interstitial tissue. Deletion of IR elevated FoxO and decreased mTOR protein expression, which further decreased the expression of Chrm3, P2x1, Sm22, and Cav1.2, crucial functional proteins for BSM contraction. Furthermore, we determined the expression of adiponectin in BSM, and deletion of IR in BSM inhibited adiponectin-mediated signaling. In summary, disruption of IR-mediated signaling in BSM caused abnormalities in proliferation and differentiation, leading to diminished BSM contractility and a voiding dysfunction phenotype that recapitulates human DBD.
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Affiliation(s)
| | | | | | - Weiqun Yu
- Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA
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16
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Functional and Immunofluorescence Evaluations of Vascular and Neural Integrities in Urinary Bladder of Streptozotocin-Induced Diabetic Mice. Int Neurourol J 2022; 26:201-209. [PMID: 36203252 PMCID: PMC9537429 DOI: 10.5213/inj.2244152.076] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 08/29/2022] [Indexed: 12/16/2022] Open
Abstract
Purpose To assess functional and structural changes in vascular and neural structures associated with diabetic bladder dysfunction (DBD) in the bladders of streptozotocin (STZ)-induced diabetic mice. Methods Eight-week-old C57BL/6 mice were injected with STZ at 50 mg/kg daily for 5 consecutive days. Catheters were inserted 12 weeks later, and 5 days after catheter placement bladder functions were assessed by conscious cystometry. Neurovascular and extracellular matrix marker changes in harvested urinary bladders were investigated by immunofluorescent staining. Body weights and fasting and postprandial blood glucose levels were measured 12 weeks after STZ injection. Results STZ-induced diabetic mice had significantly lower body weights and significantly higher blood glucose levels. Assessment of bladder function in STZ-induced diabetic mice revealed a nearly 3-fold increase in bladder capacity and intercontractile interval compared to controls. However, basal pressure, maximal bladder pressure, and threshold pressure were not significantly different. Morphological and structural analysis showed that STZ-induced diabetic mice had significantly reduced microvascular density in lamina propria (33% of the nondiabetic control values), and severely decreased nerve contents in the detrusor region (42% of the nondiabetic control values). Conclusions STZ-induced diabetic mice exhibit functional and structural derangements in urinary bladder. The present study provides a foundation and describes a useful means of evaluating the efficacies of therapeutic targets and exploring the detailed mechanism of DBD.
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Song QX, Sun Y, Deng K, Mei JY, Chermansky CJ, Damaser MS. Potential role of oxidative stress in the pathogenesis of diabetic bladder dysfunction. Nat Rev Urol 2022; 19:581-596. [PMID: 35974244 DOI: 10.1038/s41585-022-00621-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/22/2022] [Indexed: 11/09/2022]
Abstract
Diabetes mellitus is a chronic metabolic disease, posing a considerable threat to global public health. Treating systemic comorbidities has been one of the greatest clinical challenges in the management of diabetes. Diabetic bladder dysfunction, characterized by detrusor overactivity during the early stage of the disease and detrusor underactivity during the late stage, is a common urological complication of diabetes. Oxidative stress is thought to trigger hyperglycaemia-dependent tissue damage in multiple organs; thus, a growing body of literature has suggested a possible link between functional changes in urothelium, muscle and the corresponding innervations. Improved understanding of the mechanisms of oxidative stress could lead to the development of novel therapeutics to restore the redox equilibrium and scavenge excessive free radicals to normalize bladder function in patients with diabetes.
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Affiliation(s)
- Qi-Xiang Song
- Department of Urology, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yi Sun
- Department of Pharmacology, School of Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Kangli Deng
- Department of Urology, Hubei Cancer Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jin-Yi Mei
- Department of Urology, Changhai Hospital, Naval Medical University, Shanghai, China
| | | | - Margot S Damaser
- Department of Biomedical Engineering, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA. .,Advanced Platform Technology Center, Louis Stokes Cleveland VA Medical Center, Cleveland, OH, USA. .,Glickman Urology and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA.
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18
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Xu F, Du H, Hou J, Liu J, Li N. Anti-inflammation properties of resveratrol in the detrusor smooth muscle of the diabetic rat. Int Urol Nephrol 2022; 54:2833-2843. [PMID: 35943662 DOI: 10.1007/s11255-022-03334-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 07/22/2022] [Indexed: 11/28/2022]
Abstract
PURPOSE In this paper, we aimed to prove that resveratrol can inhibit inflammation in the detrusor smooth muscle of diabetic rats, which may provide a new direction for diabetic cystopathy (DCP) treatment. METHODS We induced a Sprague-Dawley (SD) rat model of type 1 diabetes by intraperitoneal injections of streptozotocin (STZ). Then, we separated the SD rats into four groups: (1) an excipient-treated control group; (2) a resveratrol-treated control group; (3) an excipient-treated streptozotocin (STZ)-injected group; and (4) a resveratrol-treated STZ-injected group. We administered the resveratrol or excipient by intragastric administration. After 12 weeks of diabetes induction, we measured the blood-sugar concentrations and bladder weights, and we took the bladder tissues of each group of rats for hematoxylin-eosin staining to observe the histological changes. We used real-time quantitative polymerase chain reaction (qPCR) and Western blotting to analyze the expression levels of tumor necrosis factor-alpha (TNF-α), nuclear factor kappa B (NF-κB), interleukin (IL)-6, and IL-1β. RESULTS The bodyweights of the diabetic rats were appreciably reduced, while the bladder weights and blood-glucose concentrations were substantially increased. Oral resveratrol could not improve the changes in the bodyweights and blood-glucose concentrations, but it had a certain effect on the bladder weights. In a macroscopic evaluation, the bladder walls of the STZ-induced diabetes rats were thickened, and, from the H&E staining, we could see that the bladder tissues of the diabetic rats had inflammatory cell infiltration, edema, and the capillary congestion of the mucosa and lamina propria. After resveratrol treatment, the bladder-wall thickening was reduced, and the tissue damage and inflammation were significantly ameliorated. We could associate all these changes with markedly heightened expressions of TNF-α, IL-1β, IL-6, and NF-κB in the detrusor smooth muscle (DSM) tissues of the diabetic rats. Oral treatment with resveratrol alleviated the expressivity of the inflammatory cytokines in the DSM tissues. CONCLUSIONS Resveratrol treatment ameliorated the histological changes in the bladder and inhibited the expressions of DSM-tissue inflammatory factors in diabetes rats. Resveratrol may provide a new direction of research for the treatment of diabetic cystopathy.
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Affiliation(s)
- Feihong Xu
- Department of Urology, Fourth Affiliated Hospital, China Medical University, 4 Chongshan East Road, Shenyang, Liaoning, China
| | - Huifang Du
- Department of Urology, Fourth Affiliated Hospital, China Medical University, 4 Chongshan East Road, Shenyang, Liaoning, China
| | - Jun Hou
- Department of Urology, Fourth Affiliated Hospital, China Medical University, 4 Chongshan East Road, Shenyang, Liaoning, China
| | - Jingxuan Liu
- Department of Urology, Fourth Affiliated Hospital, China Medical University, 4 Chongshan East Road, Shenyang, Liaoning, China
| | - Ning Li
- Department of Urology, Fourth Affiliated Hospital, China Medical University, 4 Chongshan East Road, Shenyang, Liaoning, China.
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19
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Laddha AP, Kulkarni YA. Daidzein attenuates urinary bladder dysfunction in streptozotocin-induced diabetes in rats by NOX-4 and RAC-1 inhibition. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2022; 395:975-986. [PMID: 35538367 DOI: 10.1007/s00210-022-02246-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 04/22/2022] [Indexed: 10/18/2022]
Abstract
Reactive oxygen species via NADPH oxidase (NOX) activation are involved in the pathogenesis of many disease conditions such as diabetes and its complications. In the present study, we have examined the effect of daidzein in the management of diabetic cystopathy. Diabetes was induced in male Sprague Dawley rats via intraperitoneal injection of streptozotocin (STZ) at a dose of 55 mg/kg. After 6 weeks of diabetes induction, animals were treated with daidzein orally at a dose of 25, 50, and 100 mg/kg for 4 weeks. Diabetic animals showed increase (p < 0.001) in bladder capacity (4.32 ± 0.43 mL) and residual volume (2.53 ± 0.19 mL) when compared with normal control animals (2.10 ± 0.40 mL and 0.51 ± 0.12 mL res). Treatment with daidzein at dose of 50 and 100 mg/kg significantly reduced the elevated bladder capacity (2.91 ± 0.11 mL, p < 0.01 and 2.65 ± 1.13 mL, p < 0.001) and residual volume (1.40 ± 0.15 mL, p < 0.001 and 1.15 ± 0.05 mL, p < 0.001). Daidzein-treated animals also showed improvement in voiding efficiency. Elevated threshold and baseline pressure were also found to be reduced in diabetic animals after 4 weeks of daidzein treatment. Daidzein treatment also prevented the loss of antioxidant enzymes in the urinary bladder and also reduced the expression of NOX-4 and RAC-1 in the bladder. From the results, it can be concluded that daidzein showed a beneficial effect on urinary bladder dysfunction in diabetic animals.
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Affiliation(s)
- Ankit P Laddha
- Shobhaben Pratapbhai Patel School of Pharmacy & Technology Management, SVKM's NMIMS, V.L. Mehta Road, Vile Parle (West), Mumbai, 400056, India
| | - Yogesh A Kulkarni
- Shobhaben Pratapbhai Patel School of Pharmacy & Technology Management, SVKM's NMIMS, V.L. Mehta Road, Vile Parle (West), Mumbai, 400056, India.
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Eghbali F, Mosavari H, Madankan A, Hariri V, Garakani K, Bhahdoust M. Generalized peritonitis secondary to spontaneous rupture of the urinary bladder in a diabetic patient: A case report. Int J Surg Case Rep 2022; 97:107458. [PMID: 35930990 PMCID: PMC9403300 DOI: 10.1016/j.ijscr.2022.107458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 07/23/2022] [Accepted: 07/24/2022] [Indexed: 02/07/2023] Open
Abstract
INTRODUCTION AND IMPORTANCE Spontaneous rupture of the urinary bladder (SRUB) secondary to emphysematous cystitis(EC) in diabetic patients is extremely rare. Clinical presentations are often non-specific and display the signs and symptoms of peritonitis. The diagnosis is usually made after exploratory laparotomy. CASE REPORT A 70-year-old diabetic woman presented to the emergency department with sudden diffuse abdominal pain and hematuria of six hours duration. Physical examination revealed generalized peritonitis. Multi-slice abdominal and pelvic CT scans showed free air and fluid in the abdominal cavity. After proper resuscitation, the patient was transferred to the operating room for exploratory laparotomy. A 2 cm full-thickness bladder rupture was noted at the dome of the bladder, which was repaired. CLINICAL DISCUSSION We noticed free air in the urinary bladder wall postoperatively in the CT scan, which is the radiological sign of EC. The Pathology result was in concordance with the diagnosis. CONCLUSIONS SRUB in patients with poorly controlled diabetes and EC is highlighted in this case study. Urinary bladder rupture secondary to EC should be considered When a diabetic patient with a history of urinary symptoms presents with an acute onset of abdominal pain suggestive of peritonitis. Uneventful recovery from SRUB is dependent on early diagnosis and treatment.
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Affiliation(s)
- Foolad Eghbali
- Minimally Invasive Surgery Research Center, Division of Minimally Invasive and Bariatric Surgery, Rasool-e Akram Hospital, Iran University of Medical Sciences, Tehran, Iran,Corresponding author at: Minimally Invasive Surgery Research Center, Rasool-e-Akram Hospital, Niyayesh Ave, Sattarkhan St., Tehran, Iran.
| | - Hesam Mosavari
- Minimally Invasive Surgery Research Center, Division of Minimally Invasive and Bariatric Surgery, Rasool-e Akram Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Ahmad Madankan
- Minimally Invasive Surgery Research Center, Division of Minimally Invasive and Bariatric Surgery, Rasool-e Akram Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Vahid Hariri
- Rasoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Kiana Garakani
- Student in Molecular Cell Biology and Data Science, University of California Berkeley, San Francisco, CA, USA
| | - Mansour Bhahdoust
- Minimally Invasive Surgery Research Center, Division of Minimally Invasive and Bariatric Surgery, Rasool-e Akram Hospital, Iran University of Medical Sciences, Tehran, Iran,Department of Epidemiology, School of Public Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Bladder Dysfunction in Older Adults: The Botulinum Toxin Option. Drugs Aging 2022; 39:401-416. [PMID: 35696022 DOI: 10.1007/s40266-022-00950-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/02/2022] [Indexed: 11/03/2022]
Abstract
Bladder dysfunction, which involves inadequacies of urine storage or emptying, increases with age. Conventional medications may have insufficient efficacy for patients with refractory lower urinary tract symptoms, and their concomitant adverse events (AEs) may be intolerable for the older adult population. For decades, the botulinum toxin type A (BoNT-A) injection has been an option for managing urine frequency, urge incontinence, and voiding dysfunction in the general population refractory to conventional management. This review focuses on studies of BoNT-A application in the management of bladder dysfunction in older adult patients aged ≥ 65 years. In this target population, intravesical BoNT-A injections provide similar efficacy in idiopathic overactive bladder to that in younger adults. Good clinical response has also been demonstrated in older adult patients presenting with storage dysfunction and with various concomitant underlying neurological diseases. However, caution must be taken for the AEs that occur after intravesical BoNT-A injection, including increased post-void residual urine, acute urine retention, and urinary tract infection. Most evidence shows that age is not a major determinant of AEs after adjusting for other factors. In contrast to its application in storage dysfunction, evidence for voiding dysfunction in older adults is scarce. In general, BoNT-A may be a reasonable option for older adult patients with refractory storage dysfunction because of its promising clinical response without significant systemic AEs. Overall, clinicians should be aware of the balance between the therapeutic efficacy of BoNT-A and local AEs in vulnerable members of this population.
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Metformin abrogates the voiding dysfunction induced by prolonged methylglyoxal intake. Eur J Pharmacol 2021; 910:174502. [PMID: 34516950 DOI: 10.1016/j.ejphar.2021.174502] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 08/14/2021] [Accepted: 09/09/2021] [Indexed: 12/17/2022]
Abstract
Methylglyoxal (MGO) is a reactive carbonyl species found at high levels in blood of diabetic patients. The anti-hyperglycemic drug metformin can scavenger MGO and reduce the formation of advanced glycation end products (AGEs). Here, we aimed to investigate if MGO-induced bladder dysfunction can be reversed by metformin. Male C57/BL6 mice received 0.5% MGO in drinking water for 12 weeks, and metformin (300 mg/kg, daily gavage) was given in the last two weeks. The bladder functions were evaluated by performing voiding behavior assays, cystometry and in vitro bladder contractions. MGO intake markedly elevated the levels of MGO and fluorescent AGEs in serum and reduced the mRNA expression and activity of glyoxalase (Glo1) in bladder tissues. Glucose levels were unaffected among groups. MGO intake also increased the urothelium thickness and collagen content of the bladder. Void spot assays in conscious mice revealed an increased void volume in MGO group. The cystometric assays in anesthetized mice revealed increases of basal pressure, non-voiding contractions frequency, bladder capacity, inter-micturition pressure and residual volume, which were accompanied by reduced voiding efficiency in MGO group. In vitro bladder contractions to carbachol, α,β-methylene ATP and electrical-field stimulation were significantly greater in MGO group. Metformin normalized the changes of MGO and AGEs levels, Glo1 expression and activity, urothelium thickness and collagen content. The MGO-induced voiding dysfunction were all restored by metformin treatment. Our findings strongly suggest that the amelioration of MGO-induced voiding dysfunction by metformin relies on its ability to scavenger MGO, preventing its accumulation in blood.
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Abstract
Diabetic neuropathy is a neurodegenerative disorder that may alter both the somatic and autonomic peripheral nervous systems in the context of diabetes mellitus (DM). It is a prevalent and burdensome chronic complication of DM, that requires timely management. Optimized glycemic control (mainly for type 1 DM), multifactorial intervention (mainly for type 2 DM), with lifestyle intervention/physical exercise, and weight loss represent the basis of management for diabetic distal symmetrical polyneuropathy, and should be implemented early in the disease course. Despite better understanding of the pathogenetic mechanisms of diabetic peripheral neuropathy, there is still a stringent need for more pathogenetic-based agents that would significantly modify the natural history of the disease. The paper reviews the available drugs and current recommendations for the management of distal symmetrical polyneuropathy, including pain management, and for diabetic autonomic neuropathy. Evaluation of drug combinations that would perhaps be more efficient in slowing the progression of the disease or even reversing it, and that would provide a better pain management is still needed.
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Affiliation(s)
- Simona Cernea
- Department M3/Internal Medicine I, "George Emil Palade" University of Medicine, Pharmacy, Science, and Technology of Târgu Mureş, Târgu Mureş, Romania; Diabetes, Nutrition and Metabolic Diseases Outpatient Unit, Emergency County Clinical Hospital, Târgu Mureş, Romania.
| | - Itamar Raz
- Diabetes Unit, Hadassah Hebrew University Hospital, Jerusalem, Israel
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Experimental long-term diabetes mellitus alters the transcriptome and biomechanical properties of the rat urinary bladder. Sci Rep 2021; 11:15529. [PMID: 34330963 PMCID: PMC8324824 DOI: 10.1038/s41598-021-94532-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 06/30/2021] [Indexed: 02/04/2023] Open
Abstract
Diabetes mellitus (DM) is the leading cause of chronic kidney disease and diabetic nephropathy is widely studied. In contrast, the pathobiology of diabetic urinary bladder disease is less understood despite dysfunctional voiding being common in DM. We hypothesised that diabetic cystopathy has a characteristic molecular signature. We therefore studied bladders of hyperglycaemic and polyuric rats with streptozotocin (STZ)-induced DM. Sixteen weeks after induction of DM, as assessed by RNA arrays, wide-ranging changes of gene expression occurred in DM bladders over and above those induced in bladders of non-hyperglycaemic rats with sucrose-induced polyuria. The altered transcripts included those coding for extracellular matrix regulators and neural molecules. Changes in key genes deregulated in DM rat bladders were also detected in db/db mouse bladders. In DM rat bladders there was reduced birefringent collagen between detrusor muscle bundles, and atomic force microscopy showed a significant reduction in tissue stiffness; neither change was found in bladders of sucrose-treated rats. Thus, altered extracellular matrix with reduced tissue rigidity may contribute to voiding dysfunction in people with long-term DM. These results serve as an informative stepping stone towards understanding the complex pathobiology of diabetic cystopathy.
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Lo TS, Ng KL, Lin YH, Hsieh WC, Huang TX, Shen YH. De novo detrusor overactivity and urgency after mid-urethral slings for urodynamic stress incontinence. Int Urogynecol J 2021; 32:2737-2745. [PMID: 34292341 DOI: 10.1007/s00192-021-04911-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Accepted: 05/29/2021] [Indexed: 10/20/2022]
Abstract
INTRODUCTION AND HYPOTHESIS The objective was to identify incidence and risk factors of de novo urgency and detrusor overactivity (DO) following mid-urethral slings (MUS) in patients with urodynamic stress incontinence (USI) without urgency. METHODS A total of 688 women between January 2004 and July 2017 were reviewed retrospectively. De novo urgency was established with a positive response to question 2 on the Urogenital Distress Inventory-6 questionnaire (UDI-6). Objective cure of USI is no involuntary urine leakage during filling cystometry and pad test < 2 g. Subjective cure of stress urinary incontinence (SUI) is defined as a negative response to question 3 on UDI-6. Multivariate logistic regression was used to identify risk factors for failure. RESULTS Forty-four out of 688 women (6.4%) developed de novo urgency, with 16 out of 688 (2.3%) demonstrating de novo DO. Subjective cure for women with de novo urgency was significantly lower at 35 out of 44 (79.5%) compared with 556 out of 644 (86.3%) in those with no urgency (p < 0.001). Objective cure for women with de novo DO was significantly lower at 8 out of 16 (50%) compared with 599 out of 672 (89.1%) in those with detrusor stability (p < 0.001). Quality of life improved for all. Age ≥ 66 (OR, 1.23; 1.07), increased bladder sensation (OR, 4.18; 3.80), lower bladder capacity (OR, 5.28; 4.97), lower maximum urethral closure pressure (OR, 2.32; 5.20), and pad test > 100 g (OR, 1.08; 1.15) were independent risk factors for de novo urgency and DO. Diabetes (OR, 1.32) was an independent predictor of de novo urgency. CONCLUSION Cure is significantly reduced in women who report symptoms of de novo urgency or demonstrate DO after MUS at 1 year. Independent risk factors include age ≥ 66, increased bladder sensation, lower bladder capacity, lower maximum urethral closure pressure, greater pad loss, and diabetes.
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Affiliation(s)
- Tsia-Shu Lo
- Division of Urogynecology, Department of Obstetrics and Gynecology, Linkou, Chang Gung Memorial Hospital, Linkou Medical Center, 5, Fu-Hsin Street, Kwei-shan, Tao-Yuan City, Taiwan, 333, Republic of China. .,Department of Obstetrics and Gynecology, Chang Gung Memorial Hospital, Keelung Medical Center, Keelung, Taiwan, Republic of China. .,Department of Obstetrics and Gynecology, Chang Gung Memorial Hospital, Taipei, Medical Center, Taipei, Taiwan, Republic of China. .,School of Medicine, Chang Gung University, Taoyuan, Taiwan, Republic of China.
| | - Kai Lyn Ng
- Department of Obstetrics & Gynaecology, National University Hospital of Singapore, Singapore, Singapore
| | - Yi-Hao Lin
- Division of Urogynecology, Department of Obstetrics and Gynecology, Linkou, Chang Gung Memorial Hospital, Linkou Medical Center, 5, Fu-Hsin Street, Kwei-shan, Tao-Yuan City, Taiwan, 333, Republic of China.,School of Medicine, Chang Gung University, Taoyuan, Taiwan, Republic of China
| | - Wu-Chiao Hsieh
- Division of Urogynecology, Department of Obstetrics and Gynecology, Linkou, Chang Gung Memorial Hospital, Linkou Medical Center, 5, Fu-Hsin Street, Kwei-shan, Tao-Yuan City, Taiwan, 333, Republic of China.,Department of Obstetrics and Gynecology, Chang Gung Memorial Hospital, Keelung Medical Center, Keelung, Taiwan, Republic of China.,School of Medicine, Chang Gung University, Taoyuan, Taiwan, Republic of China
| | - Ting-Xuan Huang
- Division of Urogynecology, Department of Obstetrics and Gynecology, Linkou, Chang Gung Memorial Hospital, Linkou Medical Center, 5, Fu-Hsin Street, Kwei-shan, Tao-Yuan City, Taiwan, 333, Republic of China
| | - Yu-Hua Shen
- Department of Obstetrics and Gynecology, Chang Gung Memorial Hospital, Keelung Medical Center, Keelung, Taiwan, Republic of China
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Dai Y, Ye Q, Sun YM, Liu XR, Li L, Wen Q, Zhu TM. Acupuncture for diabetic neurogenic bladder: A protocol for systematic review and meta-analysis. Medicine (Baltimore) 2021; 100:e24573. [PMID: 33578555 PMCID: PMC7886445 DOI: 10.1097/md.0000000000024573] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 01/14/2021] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND Diabetic neurogenic bladder (DNB) is one of the common complications of diabetes mellitus, which has a high prevalence rate. Some research suggested that acupuncture can improve the clinical symptoms of diabetic neurogenic bladder patients, but there is no systematic review or meta-analysis to assess this therapy. Therefore, this study aims to explore the effectiveness and safety of acupuncture for patients with DNB. METHODS In this study, we will search for electronic databases including the Cochrane Library, Web of Science, PubMed, MEDLINE, EMBASE,China National Knowledge Infrastructure (CNKI), Wan-Fang, and Baidu Scholar Database from inception to December 2020. We will select randomized controlled trials that have been published in English or Chinese related to acupuncture for DNB. Selection of study, extraction of data, and assessment of study quality will be performed independently by 2 researchers, and we will use Revman 5.3 software which is provided by Cochrane assistance network, to perform the data analysis. RESULTS This study will provide evidence of the effectiveness and safety of acupuncture for DNB. CONCLUSION This study will clarify whether acupuncture is an effective treatment for DNB, and will also provide a reference for clinical practice and guidelines development.
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Affiliation(s)
- Yu Dai
- Chengdu Eighth People's Hospital
| | - Qing Ye
- Chengdu Eighth People's Hospital
| | | | | | - Lu Li
- Chengdu Eighth People's Hospital
| | - Quan Wen
- Chengdu Eighth People's Hospital
| | - Tian-min Zhu
- Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan Province, China
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27
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Krepostman N, Kramer H. Lower Urinary Tract Symptoms Should Be Queried When Initiating Sodium Glucose Co-Transporter 2 Inhibitors. KIDNEY360 2021; 2:751-754. [PMID: 35373041 PMCID: PMC8791328 DOI: 10.34067/kid.0000472021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 02/02/2021] [Indexed: 02/04/2023]
Affiliation(s)
| | - Holly Kramer
- Department of Public Health Sciences, Loyola University Chicago, Maywood, Illinois
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28
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The influence of diabetes on postoperative complications following colorectal surgery. Tech Coloproctol 2021; 25:267-278. [PMID: 33386511 PMCID: PMC7775741 DOI: 10.1007/s10151-020-02373-9] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 10/29/2020] [Indexed: 01/04/2023]
Abstract
Background Diabetes mellitus has been commonly associated with poor surgical outcomes. The aim of this meta-analysis was to assess the impact of diabetes on postoperative complications following colorectal surgery. Methods Medline, Embase and China National Knowledge Infrastructure electronic databases were reviewed from inception until May 9th 2020. Meta-analysis of proportions and comparative meta-analysis were conducted. Studies that involved patients with diabetes mellitus having colorectal surgery, with the inclusion of patients without a history of diabetes as a control, were selected. The outcomes measured were postoperative complications. Results Fifty-five studies with a total of 666,886 patients comprising 93,173 patients with diabetes and 573,713 patients without diabetes were included. Anastomotic leak (OR 2.407; 95% CI 1.837–3.155; p < 0.001), surgical site infections (OR 1.979; 95% CI 1.636–2.394; p < 0.001), urinary complications (OR 1.687; 95% CI 1.210–2.353; p = 0.002), and hospital readmissions (OR 1.406; 95% CI 1.349–1.466; p < 0.001) were found to be significantly higher amongst patients with diabetes following colorectal surgery. The incidence of septicemia, intra-abdominal infections, mechanical failure of wound healing comprising wound dehiscence and disruption, pulmonary complications, reoperation, and 30-day mortality were not significantly increased. Conclusions This meta-analysis and systematic review found a higher incidence of postoperative complications including anastomotic leaks and a higher re-admission rate. Risk profiling for diabetes prior to surgery and perioperative optimization for patients with diabetes is critical to improve surgical outcomes. Electronic supplementary material The online version of this article (10.1007/s10151-020-02373-9) contains supplementary material, which is available to authorized users.
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Abstract
PURPOSE OF REVIEW This article provides a summary of the autonomic neuropathies, including neuropathies associated with diabetes mellitus, neuropathies due to amyloid deposition, immune-mediated autonomic neuropathies (including those associated with a paraneoplastic syndrome), inherited autonomic neuropathies, and toxic autonomic neuropathies. The presenting features, diagnostic investigations, and natural history of these neuropathies are discussed. RECENT FINDINGS Recent findings in autonomic peripheral neuropathy include data on the epidemiology and atypical presentations of diabetic autonomic neuropathy, treatment-induced neuropathy of diabetes mellitus, the presentation of immune-mediated neuropathies, and advances in hereditary neuropathy associated with amyloidosis and other hereditary neuropathies. SUMMARY Knowledge and recognition of the clinical features of the autonomic neuropathies, combined with appropriate laboratory and electrophysiologic testing, will facilitate accurate diagnosis and management.
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30
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Wang Y, Tar MT, Davies KP. Hyperglycemic memory in the rat bladder detrusor is associated with a persistent hypomethylated state. Physiol Rep 2020; 8:e14614. [PMID: 33200530 PMCID: PMC7670302 DOI: 10.14814/phy2.14614] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 09/22/2020] [Accepted: 09/24/2020] [Indexed: 12/14/2022] Open
Abstract
Hyperglycemic memory is associated with several complications of diabetes. Although there is some physiological evidence that this phenomenon occurs with diabetic bladder dysfunction (DBD), there have been no studies in bladder that provide evidence of hyperglycemic memory at the molecular/biochemical level. In the present studies, we determined the effects of long-term diabetes on the metabolome of bladder detrusor in a rat model of streptozotocin-induced type-1-diabetes and the ability of insulin treatment to normalize metabolic changes. These studies demonstrated that although insulin reversed a majority of the metabolic changes caused by diabetes, with long-term diabetes there was a persistent decrease in the methylation index (indicated by a reduced ratio of S-adenosylmethionine to S-adenosyl homocysteine) after insulin treatment. We confirmed a "hypomethylated environment" develops in diabetic detrusor by demonstrating an overall reduction in methylated detrusor DNA that is only partially reversed with glycemic control. Furthermore, we confirmed that this hypomethylated environment is associated with epigenetic changes in the detrusor genome, which are again mostly, but not completely, reversed with glycemic control. Overall our studies provide strong molecular evidence for a mechanism by which diabetes alters methylation status and gene expression in the detrusor genome, and that these epigenetic modifications contribute to hyperglycemic memory. Our work suggests novel treatment strategies for diabetic patients who have attained glycemic control but continue to experience DBD. For example, epigenomic data can be used to identify "actionable gene targets" for its treatment and would also support a rationale for approaches that target the hypomethylation index.
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Affiliation(s)
- Yi Wang
- Department of UrologyAlbert Einstein College of MedicineBronxNYUSA
| | - Moses T. Tar
- Department of UrologyAlbert Einstein College of MedicineBronxNYUSA
| | - Kelvin P. Davies
- Department of UrologyAlbert Einstein College of MedicineBronxNYUSA
- Department of Physiology and BiophysicsAlbert Einstein College of MedicineBronxNYUSA
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31
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Santos-Pereira M, Charrua A. Understanding underactive bladder: a review of the contemporary literature. Porto Biomed J 2020; 5:e070. [PMID: 32734011 PMCID: PMC7386537 DOI: 10.1097/j.pbj.0000000000000070] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 04/08/2020] [Indexed: 12/15/2022] Open
Abstract
Underactive bladder (UAB) is characterized by prolonged voiding, hesitancy, and slow and/or intermittent stream with or without a sensation of incomplete bladder emptying. The overlap of UAB lower urinary tract symptoms with those of overactive bladder or bladder outlet obstruction, as well as its multifactorial etiology, make UAB study, as well as its diagnosis and management, a very arduous and challenging task. Therefore, despite its incidence and significant impact in the quality of life of both men and women, UAB remains a poorly understood urologic condition with insufficient and ineffective treatment options available. In this review, we will focus on the etiology theories that have been proposed and the animal models available to test those theories.
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Affiliation(s)
- Mariana Santos-Pereira
- Unidade de Biologia Experimental, Departamento de Biomedicina, Faculdade de Medicina da Universidade do Porto, Porto, Portugal
| | - Ana Charrua
- Unidade de Biologia Experimental, Departamento de Biomedicina, Faculdade de Medicina da Universidade do Porto, Porto, Portugal
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Moussa M, Papatsoris A, Chakra MA, Fares Y, Dellis A. Lower urinary tract dysfunction in common neurological diseases. Turk J Urol 2020; 46:S70-S78. [PMID: 32384046 DOI: 10.5152/tud.2020.20092] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Accepted: 04/06/2020] [Indexed: 11/22/2022]
Abstract
The lower urinary tract has the main function of urine storage and voiding. The integrity of the lower urinary tract nerve supply is necessary for its proper function. Neurological disorders can lead to lower urinary tract dysfunction (LUTD) and cause lower urinary tract symptoms (LUTS). Common causes of neurogenic LUTS or LUTD include spinal cord injury, multiple sclerosis, Parkinson's disease, cerebrovascular accidents, cauda equina syndrome, diabetes mellitus, and multiple system atrophy. The pathophysiology is categorized according to the nature of the onset of neurological disease. Assessment requires clinical evaluation, laboratory tests, imaging, and urodynamic studies. Impaired voiding is most often managed by clean intermittent self-catheterization if the postvoid residual urine exceeds 100 ml, whereas storage symptoms are most often managed by antimuscarinic medications. Intradetrusor injection of botulinum toxin type A is emerging as an effective treatment for managing refractory neurogenic detrusor overactivity. This review provides an overview of the clinical characteristics, diagnosis, and management of LUTD in patients with central and peripheral common neurological diseases.
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Affiliation(s)
- Mohamad Moussa
- Department of Urology, Al Zahraa University Medical Center, Beirut, Lebanon
| | | | | | - Yousef Fares
- Department of Neurosurgery, Al Zahraa University Medical Center, Beirut, Lebanon
| | - Athanasios Dellis
- Department of Urology/General Surgery, Areteion Hospital, Athens, Greece
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de Oliveira MG, de Medeiros ML, Tavares EBG, Mónica FZ, Antunes E. Methylglyoxal, a Reactive Glucose Metabolite, Induces Bladder Overactivity in Addition to Inflammation in Mice. Front Physiol 2020; 11:290. [PMID: 32317986 PMCID: PMC7147252 DOI: 10.3389/fphys.2020.00290] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Accepted: 03/16/2020] [Indexed: 12/30/2022] Open
Abstract
Diabetic bladder dysfunction (DBD) is one of the most common complication of diabetes. Methylglyoxal (MGO), a highly reactive dicarbonyl compound formed as a by-product of glycolysis, is found at high levels in plasma of diabetic patients. Here, we explored the effects of chronic administration of MGO on micturition pattern (cystometry) and bladder contractility in vitro in healthy male C57/BL6 mice. Methylglyoxal was given at 0.5% in drinking water for 4 weeks. Exposure to MGO led to bladder tissue disorganization, edema of lamina propria, partial loss of urothelium and multiple leukocyte infiltrates. Filling cystometry revealed significant increases of micturition frequency and number of non-voiding contractions (NVCs) in the MGO group, clearly indicating an overactive bladder profile. Bladder contractions induced by electrical-field stimulation (EFS) and carbachol were significantly higher in the MGO group, while the muscarinic M2 and M3 mRNA expressions remained unchanged between groups. Additionally, MGO exposure induced upregulation of TRPA1 and down-regulation of TRPV1 and TRPV4 in bladder tissues. Methylglyoxal did not change the mRNA expression of the advanced glycation end products receptor (RAGE), but markedly increased its downstream NF-κB - iNOS signaling. The mRNA expression of cyclooxygenase-2 (COX-2) and reactive-oxygen species (ROS) levels remained unchanged. Altogether, our data show that 4-week MGO intake in mice produces an overactive bladder phenotype in addition to bladder inflammation and increased NF-kB/iNOS signaling. TRPA1 up-regulation and TRPV1/TRPV4 down-regulation may account for the MGO-induced bladder overactivity. Scavengers of MGO could be an option to ameliorate bladder dysfunction in diabetic conditions.
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Affiliation(s)
| | | | - Edith B G Tavares
- Department of Pharmacology, University of Campinas (UNICAMP), Campinas, Brazil
| | - Fabiola Z Mónica
- Department of Pharmacology, University of Campinas (UNICAMP), Campinas, Brazil
| | - Edson Antunes
- Department of Pharmacology, University of Campinas (UNICAMP), Campinas, Brazil
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Mokhames Z, Rezaie Z, Ardeshirylajimi A, Basiri A, Taheri M, Omrani MD. VEGF-incorporated PVDF/collagen nanofibrous scaffold for bladder wall regeneration and angiogenesis. INT J POLYM MATER PO 2020. [DOI: 10.1080/00914037.2020.1740985] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Zakiye Mokhames
- Department of Molecular Diagnostic, Emam Ali Educational and Therapeutic Center, Alborz University of Medical Sciences, Karaj, Iran
| | - Zahra Rezaie
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Abdolreza Ardeshirylajimi
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Abbas Basiri
- Urology and Nephrology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Taheri
- Urogenital Stem Cell Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mir Davood Omrani
- Urology and Nephrology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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35
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Sun DZ, Abelson B, Babbar P, Damaser MS. Harnessing the mesenchymal stem cell secretome for regenerative urology. Nat Rev Urol 2020; 16:363-375. [PMID: 30923338 DOI: 10.1038/s41585-019-0169-3] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The extensive arsenal of bioactive molecules secreted by mesenchymal stem cells (MSCs), known as the secretome, has demonstrated considerable therapeutic benefit in regenerative medicine. Investigation into the therapeutic potential of the secretome has enabled researchers to replicate the anti-inflammatory, pro-angiogenic and trophic effects of stem cells without the need for the cells themselves. Furthermore, treatment with the MSC secretome could circumvent hurdles associated with cellular therapy, including oncogenic transformation, immunoreactivity and cost. Thus, a clear rationale exists for investigating the therapeutic potential of the MSC secretome in regenerative urology. Indeed, preclinical studies have demonstrated the therapeutic benefits of the MSC secretome in models of stress urinary incontinence, renal disease, bladder dysfunction and erectile dysfunction. However, the specific mechanisms underpinning therapeutic activity are unclear and require further research before clinical translation. Improvements in current proteomic methods used to characterize the secretome will be necessary to provide further insight into stem cells and their secretome in regenerative urology.
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Affiliation(s)
- Daniel Z Sun
- Department of Urology, Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA. .,Cleveland Clinic Lerner College of Medicine at Case Western Reserve University, Cleveland, OH, USA. .,Department of Biomedical Engineering, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA.
| | - Benjamin Abelson
- Department of Urology, Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA.,Cleveland Clinic Lerner College of Medicine at Case Western Reserve University, Cleveland, OH, USA.,Department of Biomedical Engineering, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Paurush Babbar
- Department of Urology, Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA.,Cleveland Clinic Lerner College of Medicine at Case Western Reserve University, Cleveland, OH, USA.,Department of Biomedical Engineering, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Margot S Damaser
- Department of Urology, Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA.,Cleveland Clinic Lerner College of Medicine at Case Western Reserve University, Cleveland, OH, USA.,Department of Biomedical Engineering, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA.,Advanced Platform Technology Center, Louis Stokes Cleveland VA Medical Center, Cleveland, OH, USA
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The impact of catheter‐based bladder drainage method on urinary tract infection risk in spinal cord injury and neurogenic bladder: A systematic review. Neurourol Urodyn 2019; 39:854-862. [DOI: 10.1002/nau.24253] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Accepted: 11/26/2019] [Indexed: 01/08/2023]
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37
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do Vale GT, Sousa AH, Gonzaga NA, de Oliveira MG, Justo AF, Alexandre EC, Tanus-Santos JE, Antunes E, Tirapelli CR. Chronic ethanol consumption induces micturition dysfunction and alters the oxidative state of the urinary bladder. Can J Physiol Pharmacol 2019; 97:1103-1114. [DOI: 10.1139/cjpp-2019-0143] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Oxidative stress is pointed out as a major mechanism by which ethanol induces functional and structural changes in distinctive tissues. We evaluated whether ethanol consumption would increase oxidative stress and cause micturition dysfunction. Male C57BL/6J mice were treated with 20% ethanol (v/v) for 10 weeks. Our findings showed that chronic ethanol consumption reduced micturition spots and urinary volume in conscious mice, whereas in anaesthetized animals cystometric analysis revealed reduced basal pressure and increased capacity, threshold pressure, and maximum voiding. Treatment with ethanol reduced the contraction induced by carbachol in isolated bladders. Chronic ethanol consumption increased the levels of oxidant molecules and thiobarbituric acid reactive species in the mouse bladder. Upregulation of Nox2 was detected in the bladder of ethanol-treated mice. Increased activity of both superoxide dismutase and catalase were detected in the mouse bladder after treatment with ethanol. Conversely, decreased levels of reduced glutathione were detected in the bladder of ethanol-treated mice. The present study first demonstrated that chronic ethanol consumption induced micturition dysfunction and that this response was accompanied by increased levels of oxidant molecules in the mousebladder. These findings suggest that ethanol consumption is a risk factor for vesical dysfunction.
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Affiliation(s)
- Gabriel T. do Vale
- Laboratório de Farmacologia, DEPCH, Escola de Enfermagem de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, São Paulo, Brazil
- Programa de Pós-graduação em Farmacologia, Faculdade de Medicina de Ribeirão Preto, USP, Ribeirão Preto, São Paulo, Brazil
| | - Arthur H. Sousa
- Laboratório de Farmacologia, DEPCH, Escola de Enfermagem de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, São Paulo, Brazil
| | - Natália A. Gonzaga
- Laboratório de Farmacologia, DEPCH, Escola de Enfermagem de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, São Paulo, Brazil
- Programa de Pós-graduação em Farmacologia, Faculdade de Medicina de Ribeirão Preto, USP, Ribeirão Preto, São Paulo, Brazil
| | - Mariana G. de Oliveira
- Departamento de Farmacologia, Faculdade de Ciências Médicas, Universidade Estadual de Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Alberto F.O. Justo
- Departamento de Farmacologia, Faculdade de Ciências Médicas, Universidade Estadual de Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Eduardo C. Alexandre
- Departamento de Farmacologia, Faculdade de Ciências Médicas, Universidade Estadual de Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Jose E. Tanus-Santos
- Programa de Pós-graduação em Farmacologia, Faculdade de Medicina de Ribeirão Preto, USP, Ribeirão Preto, São Paulo, Brazil
| | - Edson Antunes
- Departamento de Farmacologia, Faculdade de Ciências Médicas, Universidade Estadual de Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Carlos R. Tirapelli
- Escola de Enfermagem de Ribeirão Preto - DEPCH / Faculdade de Ciências Farmacêuticas de Ribeirão Preto - DFQ, USP, Ribeirão Preto, SP, Brazil
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Chen J, Zhao J, Cao Y, Zhang G, Chen Y, Zhong J, Huang W, Zeng J, Wu P. Relationship between alterations of urinary microbiota and cultured negative lower urinary tract symptoms in female type 2 diabetes patients. BMC Urol 2019; 19:78. [PMID: 31438919 PMCID: PMC6704724 DOI: 10.1186/s12894-019-0506-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Accepted: 08/02/2019] [Indexed: 12/31/2022] Open
Abstract
Background Lower urinary tract symptoms (LUTS) is the most common complication of diabetes. However, the underlying pathogenesis of cultured negative LUTS (cn-LUTS) in diabetic patients has not been well understood. Numerous evidence indicates that urinary dysbiosis is related to urologic disorders. We aim to study alterations of the urinary microbiota of cn-LUTS in type 2 diabetes (T2D) patients. Methods Female T2D patients and controls were recruited and requested to finish the American Urological Association Symptom Index. Mid-stream urine was collected for culturing and extracting DNA. Microbial diversity and composition were analyzed by targeting to 16S rDNA. Linear discriminant analysis effect size (LEfSe) was carried out to identify significantly different bacteria. Results 32 female T2D patients and 26 controls were enrolled. No significant differences in alpha diversity were observed between patients and controls. However, statistically decreased richness (ACE index and Chao 1 index, 85.52(13.75, 204.84) vs. 129.82(63.89, 280.30) and 83.86(11.00, 210.77) vs. 125.19(62.00, 251.77), P = 0.005; Observed Species, 76(10, 175) vs. 98(54, 234), P = 0.011) and decreased species diversity (Shannon index, 1.37(0.04, 3.48) vs. 2.09(0.98, 3.43), P = 0.033; Simpson index, 0.46 (0.06, 0.99) vs. 0.23(0.07, 0.64), P = 0.029) were shown in moderate-to-severe LUTS group and high Hemoglobin A1c group, respectively. A significant difference of beta diversity was found between T2D patients and controls and T2D patients with different severity of cn-LUTS as well as the different level of Hemoglobin A1c. LEfSe revealed that 10 genera (e.g., Escherichia-Shigella and Klebsiella) were increased and 7 genera were decreasing in T2D patients, 3 genera (e.g., Escherichia-Shigella and Campylobacter) were increased and 16 genera (e.g., Prevotella) were reduced in moderate-to-severe LUTS group, 2 genera (Escherichia-Shigella and Lactobacillus) were over-represented and 10 genera (e.g., Prevotella) were under-represented in high Hemoglobin A1c group. Finally, Hemoglobin A1c was found positively correlated with the total score of the American Urological Association Symptom Index (r = 0.509, P = 0.003). Conclusions Urinary dysbiosis may be related to cn-LUTS in female T2D patients. A better understanding of urinary microbiota in the development and progression of cn-LUTS in female T2D patients was necessary. The severity of cn-LUTS was correlated to hyperglycemia and chronic hyperglycemia might induce or promote cn-LUTS by influencing urinary microbiota. Electronic supplementary material The online version of this article (10.1186/s12894-019-0506-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jiawei Chen
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Jie Zhao
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Ying Cao
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Guihao Zhang
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Yang Chen
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Jialei Zhong
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Weina Huang
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Jiarong Zeng
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Peng Wu
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.
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Abstract
Urinary retention is a common problem encountered in the emergency department. Acute urinary retention (AUR) presents as a sudden inability to voluntarily void, and is typically associated with lower abdominal pain. Its etiology can be varied and multifactorial. Treatment of AUR aims to relieve the obstruction and mitigate the underlying cause of retention. This can generally be accomplished in the emergency department without immediate urologic consultation; however, certain clinical features may require specialist involvement. This article provides an overview of the common causes of urinary retention, as well as emergency department evaluation, treatment, and disposition of patients with acute retention.
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Affiliation(s)
- Michael Billet
- Department of Emergency Medicine, University of Maryland School of Medicine, Baltimore, MD, USA.
| | - Thomas Andrew Windsor
- Department of Emergency Medicine, University of Maryland School of Medicine, 110 South Paca Street - Suite 200, Baltimore, MD 21201, USA
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40
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Chuang CC, Yang E, Zou KH, Araiza A, Wang A, Luo X. Health and functional status, health events, use of healthcare services and costs associated with overactive bladder among the medically complex vulnerable elderly in the US. Int J Clin Pract 2019; 73:e13207. [PMID: 30011108 DOI: 10.1111/ijcp.13207] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Accepted: 04/19/2018] [Indexed: 11/29/2022] Open
Abstract
AIMS To assess the prevalence of overactive bladder (OAB) among medically complex vulnerable elderly (MCVE) patients in the United States and to compare health status measures, functional status, healthcare events, use of healthcare services and costs between MCVE patients with and without OAB. METHODS Using the 2001-2010 Medicare Current Beneficiary Surveys, we defined the MCVE as those respondents who were ≥65 years old with scores ≥3 on the Vulnerable Elders Survey-13. OAB diagnosis codes or self-reported use of antimuscarinic medications were used to identify MCVE individuals with OAB. Multiple regression analyses were used to estimate the adjusted relationship between OAB and the outcome measures. RESULTS The annual prevalence of OAB among the MCVE increased from 9.6% in 2001 to 13.5% in 2010. MCVE individuals with OAB were more likely to have experienced falls or fractures (odds ratio [OR] = 1.6; 95% confidence interval [CI]: 1.3-2.0), urinary tract infections (OR = 4.3; 95% CI: 3.5-5.4), institutionalization (OR = 1.9; 95% CI: 1.4-2.5), limitations in activity of daily living (ADL) (OR = 1.4; 95% CI: 1.1-1.7) and instrumental ADL (OR = 1.5; 95% CI: 1.2-2.0), hospital admission (OR = 1.6; 95% CI: 1.3-2.0) and emergency department admissions (OR = 1.6; 95% CI: 1.3-2.0) than those without OAB. MCVE individuals with OAB incurred, on average, $7188 (2013 dollars) more in healthcare costs than those without OAB. DISCUSSION/CONCLUSIONS The prevalence of OAB in the MCVE population increased over time. OAB is associated with substantial clinical and economic burden. Further research is warranted to understand whether better management of the MCVE population with OAB may reduce healthcare resource use.
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Affiliation(s)
| | - Erru Yang
- Genentech, South San Francisco, CA, USA
| | | | | | - Alan Wang
- Bristol-Myers Squibb, Lawrence Township, NJ, USA
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41
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Le Berre M, Morin M, Corriveau H, Hamel M, Nadeau S, Filiatrault J, Dumoulin C. Characteristics of Lower Limb Muscle Strength, Balance, Mobility, and Function in Older Women with Urge and Mixed Urinary Incontinence: An Observational Pilot Study. Physiother Can 2019; 71:250-260. [PMID: 31719721 DOI: 10.3138/ptc.2018-30] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Purpose: After the age of 65, urinary incontinence (UI) occurs in one of every two women. A positive correlation between falls and urgency UI (UUI) or mixed UI (MUI) has also been identified. However, lower extremity impairments in older women with UUI or MUI have not been thoroughly investigated. The primary goal of this study was to compare lower limb strength, balance, mobility, and function in older women with and without UUI or MUI. The secondary goal was to evaluate the association between these measurements and UI severity. Method: A total of 40 older women with and without UUI or MUI completed standardized tests for lower limb strength (knee flexor or extensor dynamometry, 30-second sit-to-stand test), balance (single-leg stance test, Four Square Step Test, Activities-specific Balance Confidence questionnaire), mobility (10-metre walk test, 6-minute walk test), and function (Human Activity Profile questionnaire, 12-Item Short Form Health Survey). Results: Significant differences in balance and mobility were observed between the two groups. Women with UI had shorter single-leg stance times, lower balance confidence scores, and slower gait speeds. Conclusions: The results from this pilot study suggest that high-functioning older women with UUI or MUI have balance and mobility impairments. More studies are needed to confirm these results. By reporting power calculations for sample size, this pilot study provides a useful basis on which to design and conduct larger studies.
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Affiliation(s)
- Mélanie Le Berre
- Institut Universitaire de Gériatrie de Montréal.,School of Rehabilitation, Université de Montréal
| | - Mélanie Morin
- School of Rehabilitation, Université de Sherbrooke, Sherbrooke, Que
| | - Hélène Corriveau
- School of Rehabilitation, Université de Sherbrooke, Sherbrooke, Que
| | - Mathieu Hamel
- School of Rehabilitation, Université de Sherbrooke, Sherbrooke, Que
| | - Sylvie Nadeau
- School of Rehabilitation, Université de Montréal.,Pathokinesiology Laboratory, Centre for Interdisciplinary Research in Rehabilitation of Greater Montreal, Montreal
| | - Johanne Filiatrault
- Institut Universitaire de Gériatrie de Montréal.,School of Rehabilitation, Université de Montréal
| | - Chantale Dumoulin
- Institut Universitaire de Gériatrie de Montréal.,School of Rehabilitation, Université de Montréal
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42
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Chien-Hua C, Yun-Te C, Neng-Chyan H, Fong-Dee H. New-Onset Massive Ascites With Acute Kidney Injury Due to Spontaneous Rupture of the Urinary Bladder. J Acute Med 2019; 9:64-68. [PMID: 32995233 PMCID: PMC7440379 DOI: 10.6705/j.jacme.201906_9(2).0004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Spontaneous rupture of the urinary bladder (SRUB) is a rare urological emergency associated with urinary ascites and apparent acute kidney injury. The clinical course can be severe or lethal if no early diagnosis is achieved. We present a 44-year-old woman with type 2 diabetes mellitus had progressive abdominal fullness, poor appetite, dyspnea, and lower legs edema for two days. Laboratory studies present as acute kidney injury. Abdominal sonogram and computed tomogram (CT) revealed massive ascites. Her ascitesrelieved dramatically after Foley catheter indwelling, and daily urine amount was about 5,000 mL. Urinary bladder rupture was found after CT cystography. She received surgical repair of the ruptured urinary bladder, and cystometry revealed detrusor arefl exia. Then she was discharged uneventfully.
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Affiliation(s)
- Chen Chien-Hua
- Chiayi Branch, Taichung Veterans General HospitalDepartment of Emergency MedicineChiayiTaiwan,Kaohsiung Veterans General HospitalDepartment of Emergency MedicineNo. 386, Ta-Chung 1st Rd.Kaohsiung813Taiwan
| | - Chang Yun-Te
- Kaohsiung Veterans General HospitalDepartment of Emergency MedicineNo. 386, Ta-Chung 1st Rd.Kaohsiung813Taiwan
| | - Huang Neng-Chyan
- Kaohsiung Veterans General HospitalDepartment of Emergency MedicineNo. 386, Ta-Chung 1st Rd.Kaohsiung813Taiwan
| | - Huang Fong-Dee
- Kaohsiung Veterans General HospitalDepartment of Emergency MedicineNo. 386, Ta-Chung 1st Rd.Kaohsiung813Taiwan
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43
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Klee NS, Moreland RS, Kendig DM. Detrusor contractility to parasympathetic mediators is differentially altered in the compensated and decompensated states of diabetic bladder dysfunction. Am J Physiol Renal Physiol 2019; 317:F388-F398. [PMID: 31141399 DOI: 10.1152/ajprenal.00178.2019] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Diabetic bladder dysfunction (DBD) affects up to 50% of all patients with diabetes, characterized by symptoms of both overactive and underactive bladder. Although most diabetic bladder dysfunction studies have been performed using models with type 1 diabetes, few have been performed in models of type 2 diabetes, which accounts for ~90% of all diabetic cases. In a type 2 rat model using a high-fat diet (HFD) and two low doses of streptozotocin (STZ), we examined voiding measurements and functional experiments in urothelium-denuded bladder strips to establish a timeline of disease progression. We hypothesized that overactive bladder symptoms (compensated state) would develop and progress into symptoms characterized by underactive bladder (decompensated state). Our results indicated that this model developed the compensated state at 1 wk after STZ and the decompensated state at 4 mo after STZ administration. Diabetic bladders were hypertrophied compared with control bladders. Increased volume per void and detrusor muscle contractility to exogenous addition of carbachol and ATP confirmed the development of the compensated state. This enhanced contractility to carbachol was not due to increased levels of M3 receptor expression. Decompensation was characterized by increased volume per void, number of voids, and contractility to ATP but not carbachol. Thus, progression from the compensated to decompensated state may involve decreased contractility to muscarinic stimulation. These data suggest that the compensated state of DBD progresses temporally into the decompensated state in the male HFD/STZ model of diabetes; therefore, this male HFD/STZ model can be used to study the progression of DBD.
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Affiliation(s)
- Nicole S Klee
- Department of Pharmacology and Physiology, Drexel University College of Medicine, Philadelphia, Pennsylvania
| | - Robert S Moreland
- Department of Pharmacology and Physiology, Drexel University College of Medicine, Philadelphia, Pennsylvania
| | - Derek M Kendig
- Department of Biology, Loyola University Maryland, Baltimore, Maryland
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44
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Yang X, Lian D, Fan P, Xu Y, Wang J, Chen F, Lai H, Jiang W, Zhang L, Huang P, Cao H. Effects of Radix Linderae extracts on a mouse model of diabetic bladder dysfunction in later decompensated phase. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2019; 19:41. [PMID: 30717724 PMCID: PMC6360732 DOI: 10.1186/s12906-019-2448-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2018] [Accepted: 01/23/2019] [Indexed: 01/09/2023]
Abstract
Background This study aimed to elucidate the effects and mechanisms of Radix Linderae (RL) extracts on a mouse model of diabetic bladder dysfunction (DBD), especially on later decompensated phase. Methods Male C57BL/6J mice were intraperitoneally injected with streptozotocin (STZ) after 4 weeks of high-fat diet (HFD) feeding. DBD mouse models (later decompensated phase) were developed by 12-weeks persistent hyperglycemia and then treated with RL extracts for 4 weeks. During administration, the fasting blood glucose (FBG) test was performed once a week. Four weeks later, oral glucose tolerance test (OGTT), voided stain on paper (VSOP), and urodynamic alteration were explored. We also performed haematoxylin and eosin (H&E) and Masson’s trichrome staining to observe the histology of the bladder. Then, the contractile responses to α, β-methylene ATP, capsaicin (CAP), KCl and carbachol were measured. Moreover, qPCR assay was performed to analyse the bladder gene expression levels of M3 receptors and TRPV1. Results The diabetic mice exhibited higher FBG, OGTT and urine production, and no substantial alteration was observed after RL treatment. Urodynamic test showed the maximum bladder capacity (MBC), residual volume (RV) and bladder compliance (BC), as well as the decrement of voided efficiency (VE) and micturition volume (MV), remarkably increased in the DBD mice. Furthermore, RL treatment significant improved urodynamic urination, with lower MBC, RV, and, BC, as well as higher VE and MV, as compared with the model groups. The wall thickness of the bladder and the ratio of smooth muscle/collagen remarkably increased, and RL could effectively attenuate the pathological change. The response of bladder strips to the stimulus was also reduced in the DBD mice, and RL treatment markedly increased the contraction. Furthermore, the gene expression levels of M3 receptors and TRPV1 were down-regulated in the bladders of the diabetic mice, whereas RL treatment retrieved those gene expression levels. Conclusions RL extracts can improve the bladder voiding functions of the DBD model mice in later decompensated phase, and underlying mechanisms was associated with mediating the gene expression of M3 receptors and TRPV1 in the bladder instead of improving blood sugar levels. Electronic supplementary material The online version of this article (10.1186/s12906-019-2448-1) contains supplementary material, which is available to authorized users.
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45
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Wittig L, Carlson KV, Andrews JM, Crump RT, Baverstock RJ. Diabetic Bladder Dysfunction:A Review. Urology 2019; 123:1-6. [DOI: 10.1016/j.urology.2018.10.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Revised: 09/27/2018] [Accepted: 10/02/2018] [Indexed: 12/11/2022]
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46
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Han JS, Kim SJ, Nam Y, Lee HY, Kim GM, Kim DM, Sohn UD. The Inhibitory Mechanism on Acetylcholine-Induced Contraction of Bladder Smooth Muscle in the Streptozotocin-Induced Diabetic Rat. Biomol Ther (Seoul) 2019; 27:101-106. [PMID: 30419634 PMCID: PMC6319557 DOI: 10.4062/biomolther.2018.136] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 09/10/2018] [Accepted: 09/20/2018] [Indexed: 12/19/2022] Open
Abstract
Most diabetic patients experience diabetic mellitus (DM) urinary bladder dysfunction. A number of studies evaluate bladder smooth muscle contraction in DM. In this study, we evaluated the change of bladder smooth muscle contraction between normal rats and DM rats. Furthermore, we used pharmacological inhibitors to determine the differences in the signaling pathways between normal and DM rats. Rats in the DM group received an intraperitoneal injection of 65 mg/kg streptozotocin and measured blood glucose level after 14 days to confirm DM. Bladder smooth muscle contraction was induced using acetylcholine (ACh, 10⁻⁴ M). The materials such as, atropine (a muscarinic receptor antagonist), U73122 (a phospholipase C inhibitor), DPCPX (an adenosine A₁ receptor antagonist), udenafil (a PDE5 inhibitor), prazosin (an α₁-receptor antagonist), papaverine (a smooth muscle relaxant), verapamil (a calcium channel blocker), and chelerythrine (a protein kinase C inhibitor) were pre-treated in bladder smooth muscle. We found that the DM rats had lower bladder smooth muscle contractility than normal rats. When prazosin, udenafil, verapamil, and U73122 were pre-treated, there were significant differences between normal and DM rats. Taken together, it was concluded that the change of intracellular Ca²⁺ release mediated by PLC/IP3 and PDE5 activity were responsible for decreased bladder smooth muscle contractility in DM rats.
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Affiliation(s)
- Jong Soo Han
- Signaling and Pharmacological Activity Research Lab, College of Pharmacy, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Su Jin Kim
- Signaling and Pharmacological Activity Research Lab, College of Pharmacy, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Yoonjin Nam
- Signaling and Pharmacological Activity Research Lab, College of Pharmacy, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Hak Yeong Lee
- Signaling and Pharmacological Activity Research Lab, College of Pharmacy, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Geon Min Kim
- Signaling and Pharmacological Activity Research Lab, College of Pharmacy, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Dong Min Kim
- Signaling and Pharmacological Activity Research Lab, College of Pharmacy, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Uy Dong Sohn
- Signaling and Pharmacological Activity Research Lab, College of Pharmacy, Chung-Ang University, Seoul 06974, Republic of Korea
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47
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Yeh CC, Yang SSD, Huang SC, Wang YC. Uncommon cause of voiding dysfunction in a female patient-vaginal abscess: A case report. World J Clin Cases 2018; 6:1199-1201. [PMID: 30613682 PMCID: PMC6306639 DOI: 10.12998/wjcc.v6.i16.1199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 11/12/2018] [Accepted: 11/24/2018] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Vaginal abscess is a treatable disease and should be considered in female patients with voiding difficulties and perineal tenderness. There are no reported cases of vaginal abscess causing voiding dysfunction in the absence of a previous surgery. Early diagnosis and drainage of vaginal abscesses may lead to excellent outcomes.
CASE SUMMARY We presented a case of vaginal abscess that caused voiding dysfunction without surgery history. A 64-year-old woman had a past history of type 2 diabetes mellitus. She came to our clinic following urinary difficulty with perineal tenderness. Bladder ultrasonography revealed a pelvic cystic lesion with a mass effect on the bladder. The presence of a vaginal abscess was suspected following pelvic examination and transvaginal ultrasound. After transvaginal drainage of the vaginal abscess and a full course of antibiotic treatment, she recovered well without any urination symptoms.
CONCLUSION Voiding dysfunction caused by vaginal abscess is rare but should be considered in female patients with perineal tenderness.
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Affiliation(s)
- Chia-Chi Yeh
- Department of Family Medicine, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Taipei 23142, Taiwan
| | - Stephen Shei-Dei Yang
- Department of Urology, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Taipei 23142, Taiwan
| | - Su-Cheng Huang
- Department of Obstetrics and Gynecology, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Taipei 23142, Taiwan
| | - Yi-Chun Wang
- Department of Nephrology, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Taipei 23142, Taiwan
- School of Medicine, Tzu Chi University, Hualien 97004, Taiwan
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48
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Klee NS, McCarthy CG, Lewis S, McKenzie JL, Vincent JE, Webb RC. Urothelial Senescence in the Pathophysiology of Diabetic Bladder Dysfunction-A Novel Hypothesis. Front Surg 2018; 5:72. [PMID: 30564582 PMCID: PMC6288180 DOI: 10.3389/fsurg.2018.00072] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Accepted: 11/12/2018] [Indexed: 12/11/2022] Open
Abstract
Diabetic bladder dysfunction (DBD) is a well-recognized and common symptom affecting up to 50% of all diabetic patients. DBD has a broad range of clinical presentations ranging from overactive to underactive bladder symptoms that develops in middle-aged to elderly patients with long standing and poorly controlled diabetes. Low efficacy of current therapeutics and lifestyle interventions combined with high national healthcare costs highlight the need for more research into bladder dysfunction pathophysiology and novel treatment options. Cellular senescence is an age-related physiologic process in which cells undergo irreversible growth arrest induced by replicative exhaustion and damaging insults. While controlled senescence negatively regulates cell proliferation and promotes tissue regeneration, uncontrolled senescence is known to result in tissue dysfunction through enhanced secretion of inflammatory factors. This review presents previous scientific findings and current hypotheses that characterize diabetic bladder dysfunction. Further, we propose the novel hypothesis that cellular senescence within the urothelial layer of the bladder contributes to the pro-inflammatory/pro-oxidant environment and symptoms of diabetic bladder dysfunction. Our results show increased cellular senescence in the urothelial layer of the bladder; however, whether this phenomenon is the cause or effect of DBD is unknown. The urothelial layer of the bladder is made up of transitional epithelia specialized to contract and expand with demand and plays an active role in transmission by modulating afferent activity. Transition from normal functioning urothelial cells to secretory senescence cells would not only disrupt the barrier function of this layer but may result in altered signaling and sensation of bladder fullness; dysfunction of this layer is known to result in symptoms of frequency and urgency. Future DBD therapeutics may benefit from targeting and preventing early transition of urothelial cells to senescent cells.
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Affiliation(s)
- Nicole S Klee
- Department of Physiology, Medical College of Georgia at Augusta University, Augusta, GA, United States
| | - Cameron G McCarthy
- Department of Physiology and Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, OH, United States
| | - Steven Lewis
- Department of Physiology, Medical College of Georgia at Augusta University, Augusta, GA, United States
| | - Jaine L McKenzie
- Department of Physiology, Medical College of Georgia at Augusta University, Augusta, GA, United States.,Department of Surgery, Medical College of Georgia at Augusta University, Augusta, GA, United States
| | - Julie E Vincent
- Department of Physiology, Medical College of Georgia at Augusta University, Augusta, GA, United States
| | - R Clinton Webb
- Department of Physiology, Medical College of Georgia at Augusta University, Augusta, GA, United States
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Kovács DÁ, Braat AE, Huurman VAL, Baranski AG. Simultaneous Pancreas-Kidney Transplant After Bricker Loop Urinary Diversion: A Case Report. EXP CLIN TRANSPLANT 2018; 17:685-687. [PMID: 30398101 DOI: 10.6002/ect.2018.0100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Simultaneous pancreas-kidney transplant is the ultimate therapy for patients who have uncontrolled and complicated type 1 diabetes mellitus with end-stage renal disease. The combined pancreas transplant provides a euglycemic milieu for the kidney and protects it from recurrence of diabetic complications. Our patient, a 41-year-old woman with end-stage diabetic nephropathy and history of multiple abdominal surgeries (ovarian cyst fenestration, adnexal extirpation, abdominal wall reconstruction), including urinary diversion (Bricker loop, above double J stent), underwent simultaneous pancreas-kidney transplant. After reperfusion, the kidney had immediate function and creatinine levels dropped to normal levels during the early postoperative period (creatinine of 102 μmol/L, estimated glomerular filtration rate of 52 mL/min/1.73 m2) and remained stable during follow-up. Serum glucose levels dropped to within normal ranges postoperatively and remained so during follow-up. The postoperative course was complicated by hydronephrosis due to transient edema of the anastomosis of the ureter to the Bricker loop, after early incidental removal of the double J catheter. This was successfully treated with a temporary percutaneous nephrostomy. Multiple previous surgeries, including a Bricker deviation, may not be a definitive contraindication for simultaneous pancreas-kidney transplant. In selected cases, special considerations may lead to a successful procedure providing better quality of life and life expectancy, even for patients with multiple comorbidities.
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Affiliation(s)
- Dávid Á Kovács
- From the Leiden University Medical Centre, Department of Surgery, Division of Transplantation, Leiden, The Netherlands
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50
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Di Capua J, Lugo-Fagundo N, Somani S, Kim JS, Phan K, Lee NJ, Kothari P, Vig KS, Cho SK. Diabetes Mellitus as a Risk Factor for Acute Postoperative Complications Following Elective Adult Spinal Deformity Surgery. Global Spine J 2018; 8:615-621. [PMID: 30202716 PMCID: PMC6125929 DOI: 10.1177/2192568218761361] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
STUDY DESIGN Retrospective cohort study. OBJECTIVES Diabetes mellitus is a highly prevalent disease in the United States. Adult spinal deformity (ASD) surgery encompasses a wide variety of spinal disorders and is associated with a morbidity rate between 20% and 80%. Considering utilization of spinal surgery will continue to increase, this study investigates the influence of diabetes mellitus on acute postoperative outcomes following elective ASD surgery. METHODS The 2010-2014 American College of Surgeon's National Surgical Quality Improvement Program database was queried using Current Procedural Terminology and International Classification of Diseases (9th Revision) diagnosis codes relevant to ASD surgery. Patients were divided into cohorts based on their diabetic status. Bivariate and multivariate logistic regression analyses were employed to identify which 30-day postoperative outcomes patients are at risk for. RESULTS A total of 5809 patients met the inclusion criteria for the study of which 4553 (84.2%) patients were nondiabetic, 578 (10.7%) patients had non-insulin-dependent diabetes mellitus (NIDDM), and 275 (5.1%) patients had insulin-dependent diabetes mellitus (IDDM). Diabetes status was significantly associated with length of stay ≥5 days (NIDDM: odds ratio [OR] = 1.27, 95% confidence interval [CI] = 1.02-1.58, P = .034; IDDM: OR = 1.55, 95% CI = 1.15-2.09, P = .004), any complication (NIDDM: OR = 1.26, 95% CI = 1.01-1.58, P = .037), urinary tract infection (NIDDM: OR = 1.87, 95% CI = 1.14-3.05, P = .012), and cardiac complications (IDDM: OR = 4.05, 95% CI = 1.72-9.51, P = .001). CONCLUSIONS Given the prevalence of diabetes, surgeons will invariably encounter these patients for ASD surgery. The present study identifies the increased risk NIDDM and IDDM patients experience following ASD surgery. Quantification of this increased risk may improve the selection of appropriate surgical candidates, patient risk stratification, and patient postoperative safety.
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Affiliation(s)
- John Di Capua
- Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | | | | | - Jun S. Kim
- Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Kevin Phan
- University of New South Wales, Sydney, New South Wales, Australia,Prince of Wales Private Hospital, Sydney, New South Wales, Australia
| | - Nathan J. Lee
- Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Parth Kothari
- Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | | | - Samuel K. Cho
- Icahn School of Medicine at Mount Sinai, New York, NY, USA,Samuel K. Cho, Department of Orthopaedic Surgery, Icahn School of Medicine at Mount Sinai, 5 East 98th Street, Box 1188, New York, NY 10029, USA.
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