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Onder Camas A, Özel ŞK, Kocabey Sütçü Z, Hepokur M, Emeksiz HC. Evaluation of bladder dysfunction in children and adolescents with type 1 diabetes mellitus by uroflowmetry. J Pediatr Endocrinol Metab 2023; 36:25-28. [PMID: 36412007 DOI: 10.1515/jpem-2022-0503] [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: 10/04/2022] [Accepted: 11/05/2022] [Indexed: 11/24/2022]
Abstract
OBJECTIVES Diabetic cystopathy is a condition characterized by decreased bladder sensitivity, increased bladder capacity, decreased bladder contractility and increased residual urine volume. It can also be considered as an early indicator of autonomic dysfunction. In this study, it was aimed to evaluate bladder functions by uroflowmetry in children and adolescents with the diagnosis of type 1 diabetes mellitus. METHODS Type 1 diabetes mellitus children and adolescents were applied uroflowmetry and post-void residual urine volumes were evaluated. The physical examination findings of the patients and the laboratory data of diabetes control were obtained from the clinic files. RESULTS A total of 51 cases aged 72-216 (155.6 ± 35.4) months were enrolled into the study. Diabetes age of the cases was 66.5 ± 46.2(13-180) months. The last one year average of HbA1c of the patients was found to be 9.7 ± 1.9%. A total of 9.8% had good, 39.2% moderate and 51% poor metabolic control, respectively. While urodynamic evaluation was normal in 36 (70.6%) of 51 participants, voiding dysfunction was found in 15. There was no statistically significant difference between groups with and without voiding dysfunction in terms of age, gender, duration of diabetes, metabolic control and HbA1c values. CONCLUSIONS It is very important to follow up patients with type 1 diabetes mellitus in terms of autonomic dysfunction. Diabetic bladder clinic, which can be observed independently of diabetes duration and metabolic control, is also included in this status. Urodynamic evaluation will be helpful both in demonstrating bladder dysfunction and in preventing possible complications.
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Affiliation(s)
- Asan Onder Camas
- Pediatric Endocrinology Clinic, Medeniyet University Goztepe Prof. Dr. Suleyman Yalcin City Hospital, Istanbul, Turkey
| | - Şeyhmus Kerem Özel
- Pediatric Surgery Clinic, Medeniyet University Goztepe Prof. Dr. Suleyman Yalcin City Hospital, Istanbul, Turkey
| | - Zümrüt Kocabey Sütçü
- Pediatric Endocrinology Clinic, Medeniyet University Goztepe Prof. Dr. Suleyman Yalcin City Hospital, Istanbul, Turkey
| | - Merve Hepokur
- Pediatric Endocrinology Clinic, Medeniyet University Goztepe Prof. Dr. Suleyman Yalcin City Hospital, Istanbul, Turkey
| | - Hamdi Cihan Emeksiz
- Pediatric Endocrinology Clinic, Medeniyet University Goztepe Prof. Dr. Suleyman Yalcin City Hospital, Istanbul, Turkey
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2
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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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Othman MA, Ezzat HM, Rizk DEE, Kamal AH, Al-Mahameed AE, Marwani AM, Bindyna KM, Salvatore S. Induction of bacterial cystitis in female rabbits by uropathogenic Escherichia coli and the differences between the bladder dome and trigone. Ultrastruct Pathol 2021; 45:159-166. [PMID: 34030600 DOI: 10.1080/01913123.2021.1920653] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
This study is designed to evaluate the histological effects of uropathogenic Escherichia coli (UPEC) infection in the urinary bladder of female rabbits and compare the differences between the dome and trigone. Bacterial cystitis was induced in 13 female rabbits by transurethral inoculation of UPEC into the urinary bladder. Eight animals served as controls. Urine samples were collected by catheterization and cultured for bacterial growth after 12 and 24 hours then every 48 hours. Infection was defined as ≥(1X105) colony-forming unit/ml of UPEC in the first two urine samples. Bladder dome and trigonal specimens were examined by light and scanning electron microscopy eight days after infection. There was a sustained increase in bacterial count, with urethral bleeding and rabbit weakness suggesting bladder colonization in the 10/13 study group (77%). Infection was not demonstrated in two animals and was spontaneously cleared in the third after 48 hours. No control animals developed an infection. In infected rabbits (n = 10), the dome showed inflammatory changes including the epithelial loss or thinning, inflammatory cell infiltration, and congested blood vessels compared to controls. The trigone showed a more pronounced inflammatory response than the dome. The presence of urinary bacterial growth, infection manifestations, and inflammatory changes that were more severe in the trigone than in the dome indicate successful bacterial inoculation and induction of cystitis. This animal model can be used for clinical trials on female cystitis. Our histological findings support a possible role of trigone in the pathogenesis of urinary tract infection.
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Affiliation(s)
- Manal A Othman
- Department of Anatomy, College of Medicine and Medical Sciences, Arabian Gulf University, Manama, Bahrain.,Department of Histology, Faculty of Medicine, Assiut University, Assuit, Egypt
| | - Hicham M Ezzat
- Department of Microbiology, Immunology & Infectious Diseases, College of Medicine and Medical Sciences, Arabian Gulf University, Manama, Bahrain.,Department of Microbiology, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Diaa E E Rizk
- Department of Obstetrics and Gynecology, College of Medicine and Medical Sciences, Arabian Gulf University, Manama, Bahrain
| | - Amer H Kamal
- Department of Physiology, College of Medicine and Medical Sciences, Arabian Gulf University, Manama, Bahrain
| | - Ali E Al-Mahameed
- Department of Microbiology, Immunology & Infectious Diseases, College of Medicine and Medical Sciences, Arabian Gulf University, Manama, Bahrain
| | - Ammar M Marwani
- Animal Facility Laboratory Manager, College of Medicine and Medical Sciences, Arabian Gulf University, Manama, Bahrain
| | - Khalid M Bindyna
- Department of Microbiology, Immunology & Infectious Diseases, College of Medicine and Medical Sciences, Arabian Gulf University, Manama, Bahrain
| | - Stefano Salvatore
- Urogynecology Unit, Department of Obstetrics and Gynecology, Vita-Salute San Raffaele University, Milan, Italy
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4
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Santin Y, Lluel P, Rischmann P, Gamé X, Mialet-Perez J, Parini A. Cellular Senescence in Renal and Urinary Tract Disorders. Cells 2020; 9:cells9112420. [PMID: 33167349 PMCID: PMC7694377 DOI: 10.3390/cells9112420] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 11/02/2020] [Accepted: 11/04/2020] [Indexed: 02/06/2023] Open
Abstract
Cellular senescence is a state of cell cycle arrest induced by repetitive cell mitoses or different stresses, which is implicated in various physiological or pathological processes. The beneficial or adverse effects of senescent cells depend on their transitory or persistent state. Transient senescence has major beneficial roles promoting successful post-injury repair and inhibiting malignant transformation. On the other hand, persistent accumulation of senescent cells has been associated with chronic diseases and age-related illnesses like renal/urinary tract disorders. The deleterious effects of persistent senescent cells have been related, in part, to their senescence-associated secretory phenotype (SASP) characterized by the release of a variety of factors responsible for chronic inflammation, extracellular matrix adverse remodeling, and fibrosis. Recently, an increase in senescent cell burden has been reported in renal, prostate, and bladder disorders. In this review, we will summarize the molecular mechanisms of senescence and their implication in renal and urinary tract diseases. We will also discuss the differential impacts of transient versus persistent status of cellular senescence, as well as the therapeutic potential of senescent cell targeting in these diseases.
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Affiliation(s)
- Yohan Santin
- Institut des Maladies Métaboliques et Cardiovasculaires, Inserm, Université Paul Sabatier, UMR 1048—I2MC, 31432 Toulouse, France; (Y.S.); (J.M.-P.)
| | - Philippe Lluel
- Urosphere SAS, Rue des Satellites, 31400 Toulouse, France;
| | - Pascal Rischmann
- Department of Urology, Kidney Transplantation and Andrology, Toulouse Rangueil University Hospital, 31432 Toulouse, France; (P.R.); (X.G.)
| | - Xavier Gamé
- Department of Urology, Kidney Transplantation and Andrology, Toulouse Rangueil University Hospital, 31432 Toulouse, France; (P.R.); (X.G.)
| | - Jeanne Mialet-Perez
- Institut des Maladies Métaboliques et Cardiovasculaires, Inserm, Université Paul Sabatier, UMR 1048—I2MC, 31432 Toulouse, France; (Y.S.); (J.M.-P.)
| | - Angelo Parini
- Institut des Maladies Métaboliques et Cardiovasculaires, Inserm, Université Paul Sabatier, UMR 1048—I2MC, 31432 Toulouse, France; (Y.S.); (J.M.-P.)
- Correspondence: ; Tel.: +33-561325601
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5
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Powell CR, Kim A, Roth J, Byrd JP, Mohammad K, Alloosh M, Vittal R, Sturek M. Ossabaw Pig Demonstrates Detrusor Fibrosis and Detrusor Underactivity Associated with Oxidative Stress in Metabolic Syndrome. Comp Med 2020; 70:329-334. [PMID: 32972487 PMCID: PMC7574218 DOI: 10.30802/aalas-cm-20-000004] [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: 01/19/2020] [Revised: 03/25/2020] [Accepted: 04/21/2020] [Indexed: 11/05/2022]
Abstract
Metabolic Syndrome (MetS) has detrimental effects on the bladder, including detrusor underactivity. The progression and mechanism of disease are poorly understood. A swine model for diabetic bladder dysfunction (DBD) was established because of the pig's human-sized bladder and its ability to develop MetS by dietary modification alone. The hypothesis of this study is that this swine model will demonstrate oxidative stress associated with MetS, which contributes to both bladder fibrosis and detrusor underactivity (DU). Ossabaw pigs underwent dietary modification consisting of a hypercaloric, atherogenic diet for 10 mo to induce MetS, and were compared with a group of control (lean) pigs. Urodynamic studies were performed in both groups to confirm DU. Thiobarbituric acid reactive substances (TBARS) detected in the urine were used to measure oxidative stress activity in the urinary tract, and urinary IL17a was used to detect profibrotic activity. MetS was confirmed by assessing body weight, blood pressure, glucose tolerance, total cholesterol, and triglycerides. The MetS group exhibited an increase in the relative levels of urinary TBARS and IL17a. Bladder pressures at capacity were lower in the MetS group, suggesting DU. Histologic analysis of a cohort of control (lean) and MetS pigs revealed that as compared with the control pigs, the MetS pigs had significantly more collagen in the muscularis layer, but not in the submucosa or mucosa layer. In conclusion, the Ossabaw pig model for diet-induced MetS is associated with oxidative stress and profibrotic activity in the bladder, which results in DU. This has previously been shown in mice and rats, but never in pigs. This novel model will better represent human MetS and DBD because the mechanism and size of the pig bladder more closely resemble that of a human, resulting in a more valid model and facilitating further study into the signaling mechanisms responsible for this impairment.
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Key Words
- du, detrusor underactivity
- luts, il17a, interleukin –17a
- lower urinary tract symptoms
- nhanes ii, national health and nutrition examination survey ii
- mets, metabolic syndrome
- mrna, messenger rna
- ros, reactive oxygen species
- sem, standard error of the mean
- tbars, thiobarbituric acid reactive substances
- t2d, type 2 diabetes mellitus
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Affiliation(s)
- Charles R Powell
- Indiana University School of Medicine Department of Urology, Indianapolis, Indiana;,
| | - Albert Kim
- Temple University College of Engineering, Philadelphia, Pennsylvania
| | - Joshua Roth
- Indiana University School of Medicine Department of Urology, Indianapolis, Indiana
| | - James P Byrd
- Department of Anatomy, Cell Biology, and Physiology, Indianapolis, Indiana
| | - Khalid Mohammad
- Department of Medicine, Endocrinology Division, Indiana University School of Medicine, Indianapolis, Indiana
| | - Mouhamad Alloosh
- Department of Anatomy, Cell Biology, and Physiology, Indianapolis, Indiana
| | - Ragini Vittal
- University of Michigan, Department of Pulmonary and Critical Care Medicine, Ann Arbor, Michigan
| | - Michael Sturek
- Department of Anatomy, Cell Biology, and Physiology, Indianapolis, Indiana; Purdue Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana
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Huang Y, Gao J, Zhou Y, Wu S, Shao Y, Xue H, Shen B, Ding L, Wei Z. Therapeutic effect of integrin-linked kinase gene-modified bone marrow-derived mesenchymal stem cells for streptozotocin-induced diabetic cystopathy in a rat model. Stem Cell Res Ther 2020; 11:278. [PMID: 32650831 PMCID: PMC7350700 DOI: 10.1186/s13287-020-01795-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Revised: 06/16/2020] [Accepted: 06/29/2020] [Indexed: 12/26/2022] Open
Abstract
Background Diabetic cystopathy (DCP) is a chronic complication of diabetes mainly within the submucosal and muscular layers of the bladder due to the hyperglycemia-induced ischemia. As no effective therapies are currently available, the administration of optimized mesenchymal stem cells (MSCs) provides a potential treatment of DCP. Thus far, new strategy, such as genetic modification of MSCs, has been developed and has shown promising outcomes of various disorders. Methods This study was conducted using integrin-linked kinase (ILK) gene-modified bone marrow-derived stem cells (BMSCs) for streptozotocin (STZ)-induced diabetic cystopathy in a rat model. In total, 68 male Sprague-Dawley rats were randomized into five groups: sham control (control group, n = 10); DCP model alone (DM group, n = 10); DCP rats intravenously treated with BMSCs (BMSC group, n = 16); DCP rats accepted adenoviral vector-infected BMSCs (Ad-null-BMSC group, n = 16) and DCP rats accepted ILK adenoviral vector-infected BMSCs (Ad-ILK-BMSC group, n = 16). Diabetic rats accepted cell transplantation in the experimental group (2 rats per group) were sacrificed for the bladder tissue on the third day, 7th day, and 14th day of treatment respectively ahead of schedule. At 4 weeks after treatment, all rats in five groups accepted urodynamic studies to evaluate bladder function and were sacrificed for bladder tissue. Results Our data showed that the underactive bladder function was significantly improved in DCP rats intravenously treated with ILK gene-modified BMSCs compared to those in the DM, BMSCs, and Ad-null-BMSC group. Meanwhile, we found that gene-modified BMSC treatment significantly promoted the activation of the AKT/GSK-3β pathway by increasing phosphorylation and led to the enhancement of survival. In addition, the expression levels of angiogenesis-related protein vascular endothelial growth factor (VEGF), basic fibroblast growth factor (bFGF), and stromal cell-derived factor-1 (SDF-1) were significantly higher in the Ad-ILK-BMSC group than that in the DM, BMSCs, and Ad-null-BMSC group as assessed by enzyme-linked immunosorbent assay and western blot. As two indicators of vascular endothelial cell markers, the expression of von Willebrand factor (vWF) and CD31 by western blot and immunofluorescent staining revealed that the percentage of the vascular area of the bladder tissue significantly increased in Ad-ILK-BMSC group compared with the BMSCs and Ad-null-BMSC group on the 14th day of treatment. Histological and immunohistochemical staining (hematoxylin and eosin (HE), vWF, Ki67, and TUNNEL) on the bladder tissue revealed statistically different results between groups. Conclusion ILK gene-modified BMSCs restored the bladder function and histological construction via promoting the process of angiogenesis and protecting cells from high glucose-associated apoptosis in STZ-induced DCP rat model, which provides a potential for the treatment of patients with DCP.
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Affiliation(s)
- Yi Huang
- Department of Urology, Nanjing Medical University Second Affiliated Hospital, No.121 Jiangjiayuan Road, Gulou District, Nanjing, 21000, China.,Department of Urology, Affiliated Hospital, Jiangnan University, Wuxi, China
| | - Jie Gao
- Department of Urology, Nanjing Medical University Second Affiliated Hospital, No.121 Jiangjiayuan Road, Gulou District, Nanjing, 21000, China
| | - Yiduo Zhou
- Department of Urology, Nanjing Medical University Second Affiliated Hospital, No.121 Jiangjiayuan Road, Gulou District, Nanjing, 21000, China
| | - Shuo Wu
- Department of Urology, Nanjing Medical University Second Affiliated Hospital, No.121 Jiangjiayuan Road, Gulou District, Nanjing, 21000, China
| | - Yunpeng Shao
- Department of Urology, Nanjing Medical University Second Affiliated Hospital, No.121 Jiangjiayuan Road, Gulou District, Nanjing, 21000, China
| | - Haoliang Xue
- Department of Urology, Nanjing Medical University Second Affiliated Hospital, No.121 Jiangjiayuan Road, Gulou District, Nanjing, 21000, China.,Department of Urology, Jiangdu People's Hospital of Yangzhou, Yangzhou, China
| | - Baixin Shen
- Department of Urology, Nanjing Medical University Second Affiliated Hospital, No.121 Jiangjiayuan Road, Gulou District, Nanjing, 21000, China
| | - Liucheng Ding
- Department of Urology, Nanjing Medical University Second Affiliated Hospital, No.121 Jiangjiayuan Road, Gulou District, Nanjing, 21000, China.
| | - Zhongqing Wei
- Department of Urology, Nanjing Medical University Second Affiliated Hospital, No.121 Jiangjiayuan Road, Gulou District, Nanjing, 21000, China.
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7
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Overactive Bladder in Diabetes Mellitus. CURRENT BLADDER DYSFUNCTION REPORTS 2019. [DOI: 10.1007/s11884-019-00532-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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8
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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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Kullmann AF, Truschel ST, Wolf-Johnston AS, McDonnell BM, Lynn AM, Kanai AJ, Kessler TM, Apodaca G, Birder LA. Acute spinal cord injury is associated with mitochondrial dysfunction in mouse urothelium. Neurourol Urodyn 2019; 38:1551-1559. [PMID: 31102563 DOI: 10.1002/nau.24037] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 04/11/2019] [Accepted: 04/25/2019] [Indexed: 12/16/2022]
Abstract
AIM To characterize the effects of acute spinal cord injury (SCI) on mitochondrial morphology and function in bladder urothelium and to test the therapeutic efficacy of early treatment with the mitochondrially targeted antioxidant, MitoTempo. METHODS We used a mouse model of acute SCI by spinal cord transection between the T8-T9 vertebrae with or without MitoTempo delivery at the time of injury followed by tissue processing at 3 days after SCI. Control, SCI, and SCI-MitoTempo-treated mice were compared in all experimental conditions. Assessments included analysis of markers of mitochondrial health including accumulation of reactive oxygen species (ROS), morphological changes in the ultrastructure of mitochondria by transmission electron microscopy, and Western blot analysis to quantify protein levels of markers for autophagy and altered mitochondrial dynamics. RESULTS SCI resulted in an increase in oxidative stress markers and ROS production, confirming mitochondrial dysfunction. Mitochondria from SCI mice developed large electron-dense inclusions and these aberrant mitochondria accumulated throughout the cytoplasm suggesting an inability to clear dysfunctional mitochondria by mitophagy. SCI mice also exhibited elevated levels of dynamin-related protein 1 (DRP1), consistent with a disruption of mitochondrial dynamics. Remarkably, treatment with MitoTempo reversed many of the SCI-induced abnormalities that we observed. CONCLUSIONS Acute SCI negatively and severely affects mitochondrial health of bladder urothelium. Early treatment of SCI with MitoTempo may be a viable therapeutic agent to mitigate these deleterious effects.
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Affiliation(s)
- Aura F Kullmann
- Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Steven T Truschel
- Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania.,Department of Cell Biology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Amanda S Wolf-Johnston
- Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Bronagh M McDonnell
- Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - A M Lynn
- Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Anthony John Kanai
- Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania.,Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Thomas M Kessler
- Department of Neuro-Urology, Balgrist University Hospital, University of Zürich, Zürich, Switzerland
| | - Gerard Apodaca
- Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania.,Department of Cell Biology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Lori A Birder
- Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania.,Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
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