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Huang J, Li H, Zhang Y, Liu J, Cao H, Long Y. Excitatory purinergic and cholinergic expression changed in a partial bladder outlet obstruction-induced overactive bladder rat model. Sci Rep 2023; 13:18395. [PMID: 37884550 PMCID: PMC10603080 DOI: 10.1038/s41598-023-45014-5] [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: 05/14/2023] [Accepted: 10/14/2023] [Indexed: 10/28/2023] Open
Abstract
Overactive bladder (OAB) is a common, long-term symptom complex with a high prevalence in women worldwide. OAB has caused a social burden, and effective treatments are urgently needed. However, the pathogenesis of OAB has yet to be elucidated. Model rats underwent bladder outlet obstruction surgery. In the 2nd, 3rd, and 4th weeks after surgery, metabolic cages were used to detect the 12 h urine volume of rats in the sham and model groups. The urodynamic parameters bladder leak point pressure (BPLL), maximum voiding pressure (MVP), residual volume (RV), maximum bladder capacity (MBC), bladder compliance (BC), voided efficiency (VE), and non-voiding contractions (NVCs) were also detected. Moreover, the contractile responses of isolated detrusor muscles to electrical and carbachol stimulation were examined at the abovementioned time points. At the 4th week after surgery, the bladders of both groups were obtained for hematoxylin-eosin (H&E) and Masson's trichrome staining. Real-time qPCR and Western blot were performed to quantify the expression of choline acetyltransferase (ChAT) and solute carrier family 17 member 9 (SLC17A9). At week 4, compared with the sham group, the 12 h urine volume of PBOO group increased significantly. The BLPP, MVP, VE, MBC, and NVCs increased significantly, and the VE was significantly reduced in 4-week PBOO group. The contractile responses of isolated detrusor muscles to electrical and carbachol stimulation significantly increased in 4-week PBOO group. In the 4-week PBOO group, the bladder wall and the ratio of bladder muscle to collagen within the bladder smooth muscle layer wall were significantly higher than those in the sham group. ChAT and SLC17A9 mRNA and protein expression in the OAB model rats significantly increased. At 4 weeks after PBOO, the OAB model was successfully established. The gene and protein expression levels of ChAT and SLC17A9 increased in the bladder of the OAB model, suggesting that OAB may be related to increased excitatory purinergic and cholinergic expression.
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Affiliation(s)
- Jingyi Huang
- Guangzhou University of Chinese Medicine, No.232 Outer Ring East Road, Higher Education Mega Center, Guangzhou, Guangdong, China
| | - Hongliang Li
- Guangzhou University of Chinese Medicine, No.232 Outer Ring East Road, Higher Education Mega Center, Guangzhou, Guangdong, China
| | - Yao Zhang
- Guangzhou University of Chinese Medicine, No.232 Outer Ring East Road, Higher Education Mega Center, Guangzhou, Guangdong, China
| | - Jiaye Liu
- Guangzhou University of Chinese Medicine, No.232 Outer Ring East Road, Higher Education Mega Center, Guangzhou, Guangdong, China
| | - Hongying Cao
- Guangzhou University of Chinese Medicine, No.232 Outer Ring East Road, Higher Education Mega Center, Guangzhou, Guangdong, China.
| | - Yongling Long
- Guangzhou University of Chinese Medicine, No.232 Outer Ring East Road, Higher Education Mega Center, Guangzhou, Guangdong, China.
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Valencia Morales DJ, Stewart BR, Heller SF, Sprung J, Schroeder DR, Ghanem OM, Weingarten TN. Urinary Retention Following Inguinal Herniorrhaphy: Role of Neuromuscular Blockade Reversal. Surg Laparosc Endosc Percutan Tech 2021; 31:613-617. [PMID: 34288639 DOI: 10.1097/sle.0000000000000962] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 04/13/2021] [Indexed: 09/29/2022]
Abstract
BACKGROUND Nondepolarizing neuromuscular blockade is reversed with neostigmine/glycopyrrolate or sugammadex. Anticholinergic glycopyrrolate decreases bladder detrusor muscle contractility, potentially leading to postoperative urinary retention (POUR). POUR commonly complicates inguinal herniorrhaphy. In this study we assess association between reversal technique and POUR. METHODS Records of adult patients undergoing unilateral inguinal herniorrhaphy with neuromuscular blockade from January 2013 to September 2020 were reviewed for POUR (unplanned postoperative insertion of urinary catheter). A propensity-adjusted analysis was performed to assess POUR in neostigmine/glycopyrrolate versus sugammadex using inverse probability of treatment weighting (IPTW) to adjust for potential confounding. RESULTS We identified 181 patients who underwent herniorrhaphy with amnio-steroidal neuromuscular blockers, 75 (41.4%) who received sugammadex and 106 (58.6%) neostigmine/glycopyrrolate. Compared with sugammadex, neostigmine/glycopyrrolate group had longer surgical course [unweighted standardized difference (USTD)=0.38, P=0.004], received more intraoperative opioids (USTD=0.704, P<0.001), more often performed via laparoscopic approach (USTD=0.407, P=0.012), and less often with periprocedural urinary catheter insertion (USTD=0.452, P=0.003). POUR was observed in 2 (3%) of patients in the sugammadex group, and 16 (15%) in neostigmine/glycopyrrolate [unadjusted odds ratio (OR)=0.15; 95% confidence interval (CI): 0.03-0.69; P=0.015, and IPTW OR=0.13; 95% CI: 0.03-0.64; P=0.012]. Results remained similar with further analysis adjusted for opioid administration in the postanesthesia care unit (adjusted IPTW OR=0.18; 95% CI: 0.04-0.88; P=0.034). Of the POUR patients, 9 required unplanned overnight admission and 4 emergency room visit. CONCLUSION These results suggest that neuromuscular blockade reversal with sugammadex is associated with lower rates of POUR following unilateral inguinal herniorrhaphy. Our results need to be reconfirmed in a randomized prospective study.
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Affiliation(s)
| | | | | | - Juraj Sprung
- Departments of Anesthesiology and Perioperative Medicine
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Current Knowledge and Perspectives of Pyrrolizidine Alkaloids in Pharmacological Applications: A Mini-Review. Molecules 2021; 26:molecules26071970. [PMID: 33807368 PMCID: PMC8037423 DOI: 10.3390/molecules26071970] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 03/21/2021] [Accepted: 03/27/2021] [Indexed: 12/20/2022] Open
Abstract
Pyrrolizidine alkaloids (PAs) are a widespread group of secondary metabolites in plants. PAs are notorious for their acute hepatotoxicity, genotoxicity and neurological damage to humans and animals. In recent decades, the application of PAs for beneficial biological activities to cure disease has drawn greater attention. Here, we review the current knowledge regarding the pharmacological properties of PAs and discuss PAs as promising prototypes for the development of new drugs.
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Vladimirova IA, Philyppov IB, Sotkis GV, Kulieva EM, Shuba YY, Gulak KL, Skryma R, Prevarskaya N, Shuba YM. Impairment of cholinergic bladder contractility in rat model of type I diabetes complicated by cystitis: Contribution of neurotransmitter-degrading ectoenzymes. Eur J Pharmacol 2019; 860:172529. [PMID: 31299187 DOI: 10.1016/j.ejphar.2019.172529] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 06/25/2019] [Accepted: 07/05/2019] [Indexed: 10/26/2022]
Abstract
Parasympathetic regulation of urinary bladder contractions primarily involves acetylcholine release and activation of detrusor smooth muscle (DSM) muscarinic acetylcholine (mACh) receptors. Co-release of ATP and activation of DSM purinergic P2X1-receptors may participate as well in some species. Both types of neuromuscular transmission (NMT) are impaired in diabetes, however, which factors may contribute to such impairment remains poorly understood. Here by using rats with streptozotocin(STZ)-induced type I diabetes (8th week after induction) we show that contribution of atropine-sensitive m-cholinergic component to the contractions of urothelium-denuded DSM strips evoked by electric field stimulation (EFS) greatly increased when diabetic bladders presented overt signs of accompanying cystitis. Modeling of hemorrhagic cystitis alone in control rats by cyclophosphamide injection only modestly increased m-cholinergic component of EFS-contractions. However, exposure of DSM strips from control animals to acetylcholinesterase (AChE) inhibitor, neostigmine (1-10 μM) largely reproduced alterations in EFS contractions observed in diabetic DSM complicated by cystitis. Ellman's assay revealed statistically significant 31% decrease of AChE activities in diabetic vs. control DSM. Changes in purinergic contractility of diabetic DSM were consistent with altered P2X1-receptor desensitization and re-sensitization. They could be mimicked by pharmacological inhibition of ATP-degrading ecto-ATPases with ARL 67156 (50 μM), pointing to compromised extracellular ATP clearance as underlying reason. We conclude that decreased AChE activities associated with diabetes and likely cystitis provide complementary factor to the described in literature altered expression of mACh receptor subtypes linked to diabetes as well as to cystitis to produce dramatic modification of cholinergic NMT.
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Affiliation(s)
- Irina A Vladimirova
- Bogomoletz Institute of Physiology of the National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - Igor B Philyppov
- Bogomoletz Institute of Physiology of the National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - Ganna V Sotkis
- Bogomoletz Institute of Physiology of the National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - Eugenia M Kulieva
- Bogomoletz Institute of Physiology of the National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - Yelyzaveta Y Shuba
- Bogomoletz Institute of Physiology of the National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - Kseniya L Gulak
- Bogomoletz Institute of Physiology of the National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - Roman Skryma
- Laboratoire de Physiologie Cellulaire, Inserm U1003, Université de Lille, Villeneuve d'Ascq, France
| | - Natalia Prevarskaya
- Laboratoire de Physiologie Cellulaire, Inserm U1003, Université de Lille, Villeneuve d'Ascq, France
| | - Yaroslav M Shuba
- Bogomoletz Institute of Physiology of the National Academy of Sciences of Ukraine, Kyiv, Ukraine.
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Kaya-Sezginer E, Yilmaz-Oral D, Gur S. Administration of human umbilical cord blood mononuclear cells restores bladder dysfunction in streptozotocin-induced diabetic rats. Low Urin Tract Symptoms 2019; 11:232-240. [PMID: 31207098 DOI: 10.1111/luts.12268] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 02/01/2019] [Accepted: 04/24/2019] [Indexed: 12/17/2022]
Abstract
OBJECTIVE This study evaluated the effect of human umbilical cord blood mononuclear cells (HUCB-MNCs) on bladder dysfunction in streptozotocin (STZ; 35 mg/kg, i.v.)-induced diabetic rats. METHODS Adult male Sprague-Dawley rats (n = 30) were equally divided into three groups: control group, STZ-diabetic group, and HUCB-MNC-treated group (1 × 106 cells). HUCB-MNCs were isolated by density gradient centrifugation from eight healthy donors and injected into the corpus cavenosum in STZ-diabetic rats 4 weeks after the induction of diabetes. Studies were performed 4 weeks after HUCB-MNC or vehicle injection. In vitro organ bath studies were performed on bladder strips, whereas protein expression of hypoxia-inducible factor (HIF)-1α, vascular endothelial growth factor (VEGF), and α-smooth muscle actin (SMA) in the bladder and the ratio of smooth muscle cells (SMCs) to collagen were determined using western blotting and Masson trichrome staining. RESULTS Neurogenic contractions of detrusor smooth muscle strips were 55% smaller in the diabetic group than control group (P < 0.05); these contractions were normalized by HUCB-MNC treatment. In addition, HUCB-MNC treatment restored the impaired maximal carbachol-induced contractile response in detrusor strips in the diabetic group (29%; P < 0.05). HUCB-MNC treatment improved the KCl-induced contractile response in the diabetic bladder (68%; P < 0.05), but had no effect on ATP-induced contractile responses. Increased expression of HIF-1α and VEGF protein and decreased expression of α-SMA protein and the SMC/collagen ratio in diabetic rats were reversed by HUCB-MNC. CONCLUSION Administration of HUCB-MNCs facilitates bladder function recovery, which is likely related to downregulation of HIF-1α expression and attenuation of fibrosis in STZ-diabetic rats.
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Affiliation(s)
- Ecem Kaya-Sezginer
- Department of Biochemistry, Faculty of Pharmacy, Ankara University, Ankara, Turkey
| | - Didem Yilmaz-Oral
- Department of Pharmacology, Faculty of Pharmacy, Ankara University, Ankara, Turkey.,Department of Pharmacology, Faculty of Pharmacy, Cukurova University, Adana, Turkey
| | - Serap Gur
- Department of Pharmacology, Faculty of Pharmacy, Ankara University, Ankara, Turkey
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Effect of pregnancy on the cholinergic responses of the bladder: role of acetylcholinesterase. Int Urol Nephrol 2018; 51:73-78. [PMID: 30478812 DOI: 10.1007/s11255-018-2032-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Accepted: 11/15/2018] [Indexed: 10/27/2022]
Abstract
OBJECTIVES Pregnancy is associated with many functional changes of the urinary bladder. It was reported that most of healthy women complain from urinary symptoms during pregnancy. The parasympathetic system is mainly mediating bladder emptying. The aim of the study is to investigate the cholinergic effect and the role of acetylcholinesterase in the bladder during pregnancy. METHODS Sixteen rats were used in the present study as control group (non-pregnant) and pregnant group (18-20 days pregnant). Isolated urinary smooth muscle strips were suspended in organ baths filled with Krebs' solution for isometric tension recording. RESULTS Electric field stimulation (EFS), (0.1-40 Hz), of the control and pregnant bladder preparations produced frequency-dependent contractions. Atropine (1 µM) inhibited EFS-induced contractions in the two groups by 65% and 50% respectively indicating the response of cholinergic innervation. Neostigmine significantly enhanced EFS responses, confirming its selectivity for inhibiting acetylcholinesterase which is responsible for termination of acetylcholine. Concentration-response curves for acetylcholine were reduced in pregnant group than control. Concentration-response curves for ATP were increased in pregnant group than control. Neostigmine augmented concentration-response curves for acetylcholine in control and pregnant groups. The effect of neostigmine on acetylcholine contractile responses in pregnancy group was higher than in control. CONCLUSIONS Urinary bladder dysfunction during pregnancy might be due to augmentation of acetylcholinesterase effect. This will lead to the decrease in response to cholinergic stimuli. New pharmaceutical drugs specifically affecting the enzyme in the bladder can help in avoiding the unpleasant urinary symptoms during pregnancy.
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Ding H, Zhang P, Li N, Liu Y, Wang P. The phosphodiesterase type 4 inhibitor roflumilast suppresses inflammation to improve diabetic bladder dysfunction rats. Int Urol Nephrol 2018; 51:253-260. [PMID: 30474782 DOI: 10.1007/s11255-018-2038-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2018] [Accepted: 11/19/2018] [Indexed: 12/12/2022]
Abstract
PURPOSE To demonstrate that phosphodiesterase type 4 (PDE4) inhibitors could potentially treat diabetic bladder dysfunction (DBD) through modulation of the systemic inflammatory response. METHODS In this 6-week study, 60 female Sprague-Dawley rats were divided into three groups: (i) vehicle-treated control rats; (ii) vehicle-treated streptozocin (STZ)-injected rats; and (iii) roflumilast-treated STZ-injected rats. Oral roflumilast (5 mg/kg/day) was administered during the last 4 weeks of STZ injection to induce diabetes in the test group. At 6 weeks, a urodynamic study was performed in each group. The expression of nuclear factor kappa B (NF-κB), tumor necrosis factor-alpha (TNF-α), interleukin (IL)-6, and IL-1β in detrusor smooth muscle (DSM) was analyzed using quantitative reverse transcription-polymerase chain reaction and Western blotting. RESULTS A significant decrease in bodyweight and significant increases in bladder weight and blood glucose level were observed in the diabetic rats and were not ameliorated by roflumilast treatment. Cystometry showed the increased bladder capacity, voiding volume, residual urine volume, and voiding interval in the diabetic rats and the prevention of these changes by roflumilast. These changes were accompanied by significantly enhanced expression of NF-κB, TNF-α, IL-6, and IL-1β in DSM tissue from diabetic rats. Furthermore, roflumilast attenuated the expression of inflammatory factors in DSM tissue. CONCLUSIONS Oral treatment with roflumilast in diabetic rats improves bladder function and inhibits the expression of inflammatory factors in DSM tissue, indicating that PDE4 is a potential therapeutic target for DBD.
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Affiliation(s)
- Honglin Ding
- Department of Urology, Fourth Affiliated Hospital, China Medical University, 4 Chongshan East Road, Shenyang, Liaoning, China.,Department of Urology, Affiliated Hospital, Chifeng University, 42 Wangfu Street, Chifeng, Neimeng, China
| | - Peng Zhang
- Department of General Surgery, Shenyang 242 Hospital, 3 Leshan Road, Shenyang, Liaoning, China
| | - Ning Li
- Department of Urology, Fourth Affiliated Hospital, China Medical University, 4 Chongshan East Road, Shenyang, Liaoning, China.
| | - Yili Liu
- Department of Urology, Fourth Affiliated Hospital, China Medical University, 4 Chongshan East Road, Shenyang, Liaoning, China
| | - Ping Wang
- Department of Urology, Fourth Affiliated Hospital, China Medical University, 4 Chongshan East Road, Shenyang, Liaoning, China
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Han JS, Min YS, Kim GH, Chae SH, Nam Y, Lee J, Lee SY, Sohn UD. The change of signaling pathway on the electrical stimulated contraction in streptozotocin-induced bladder dysfunction of rats. THE KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY : OFFICIAL JOURNAL OF THE KOREAN PHYSIOLOGICAL SOCIETY AND THE KOREAN SOCIETY OF PHARMACOLOGY 2018; 22:577-584. [PMID: 30181704 PMCID: PMC6115354 DOI: 10.4196/kjpp.2018.22.5.577] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Accepted: 05/28/2018] [Indexed: 01/11/2023]
Abstract
Bladder dysfunction is a common complication of diabetes mellitus (DM). However, there have been a few studies evaluating bladder smooth muscle contraction in DM in the presence of pharmacological inhibitors. In the present study, we compared the contractility of bladder smooth muscle from normal rats and DM rats. Furthermore, we utilized pharmacological inhibitors to delineate the mechanisms underlying bladder muscle differences between normal and DM rats. DM was established in 14 days after using a single injection of streptozotocin (65 mg/kg, intraperitoneal) in Sprague-Dawley rats. Bladder smooth muscle contraction was induced electrically using electrical field stimulation consisting of pulse trains at an amplitude of 40 V and pulse duration of 1 ms at frequencies of 2–10 Hz. In this study, the pharmacological inhibitors atropine (muscarinic receptor antagonist), U73122 (phospholipase C inhibitor), DPCPX (adenosine A1 receptor antagonist), udenafil (PDE5 inhibitor), prazosin (α1-receptor antagonist), verapamil (calcium channel blocker), and chelerythrine (protein kinase C inhibitor) were used to pretreat bladder smooth muscles. It was found that the contractility of bladder smooth muscles from DM rats was lower than that of normal rats. In addition, there were significant differences in percent change of contractility between normal and DM rats following pretreatment with prazosin, udenafil, verapamil, and U73122. In conclusion, we suggest that the decreased bladder muscle contractility in DM rats was a result of perturbations in PLC/IP3-mediated intracellular Ca2+ release and PDE5 activity.
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Affiliation(s)
- Jong Soo Han
- Department of Pharmacology, College of Pharmacy, Chung-Ang University, Seoul 06974, Korea
| | - Young Sil Min
- Department of Pharmaceutical Engineering, College of Convergence Science and Technology, Jung Won University, Goesan 28054, Korea
| | - Gil Hyung Kim
- Department of Pharmacology, College of Pharmacy, Chung-Ang University, Seoul 06974, Korea
| | - Sang-Hyun Chae
- Department of Pharmacology, College of Pharmacy, Chung-Ang University, Seoul 06974, Korea
| | - Yoonjin Nam
- Department of Pharmacology, College of Pharmacy, Chung-Ang University, Seoul 06974, Korea
| | - Jaehwi Lee
- Pharmaceutical Formulation Design Laboratory, College of Pharmacy, Chung-Ang University , Seoul 06974, Korea
| | - Seok-Yong Lee
- Department of Pharmacology, School of Pharmacy, Sungkyunkwan University, Suwon 16419, Korea
| | - Uy Dong Sohn
- Department of Pharmacology, College of Pharmacy, Chung-Ang University, Seoul 06974, Korea
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Lee S, Rose'meyer R, McDermott C, Chess-Williams R, Sellers DJ. Diabetes-induced alterations in urothelium function: Enhanced ATP release and nerve-evoked contractions in the streptozotocin rat bladder. Clin Exp Pharmacol Physiol 2018; 45:1161-1169. [PMID: 29935089 DOI: 10.1111/1440-1681.13003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 06/19/2018] [Accepted: 06/20/2018] [Indexed: 11/29/2022]
Abstract
Up to 80% of patients with diabetes mellitus develop lower urinary tract complications, most commonly diabetic bladder dysfunction (DBD). The aim of this study was to investigate the impact of diabetes on the function of the inner bladder lining (urothelium). Bladder compliance and intraluminal release of urothelial mediators, adenosine triphosphate (ATP) and acetylcholine (ACh) in response to distension were investigated in whole bladders isolated from 2- and 12-week streptozotocin (STZ)-diabetic rats. Intact and urothelium-denuded bladder strips were used to assess the influence of the urothelium on bladder contractility. Intraluminal ATP release was significantly enhanced at 2 weeks of diabetes, although not at 12 weeks. In contrast, intraluminal ACh release was unaltered by diabetes. Bladder compliance was also significantly enhanced at both 2 and 12 weeks of diabetes, with greatly reduced intravesical pressures in response to distension. Nerve-evoked contractions of bladder strips were significantly greater at 2 weeks of diabetes. When the urothelium was absent, nerve-evoked contractions were reduced, but contractions remained significantly elevated at lower frequencies of stimulation (<5 Hz) in diabetics. Interestingly, although relaxations of bladder strips to isoprenaline were unaltered by diabetes, removal of the urothelium unmasked significantly enhanced relaxations in strips from 2- and 12-week diabetic animals. In conclusion, diabetes alters urothelial function. Enhanced urothelial ATP release may be involved in the hypercontractility observed at early time points of diabetes. These alterations are time-dependent and may contribute to the mechanisms at play during the development of diabetic bladder dysfunction.
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Affiliation(s)
- Sophie Lee
- Centre for Urology Research, Faculty of Health Sciences and Medicine, Bond University, Gold Coast, QLD, Australia
| | - Roselyn Rose'meyer
- School of Medical Sciences, Griffith University, Gold Coast, QLD, Australia
| | - Catherine McDermott
- Centre for Urology Research, Faculty of Health Sciences and Medicine, Bond University, Gold Coast, QLD, Australia
| | - Russ Chess-Williams
- Centre for Urology Research, Faculty of Health Sciences and Medicine, Bond University, Gold Coast, QLD, Australia
| | - Donna J Sellers
- Centre for Urology Research, Faculty of Health Sciences and Medicine, Bond University, Gold Coast, QLD, Australia
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Bravo G, Massa H, Rose'Meyer R, Chess-Williams R, McDermott C, Sellers DJ. Effect of short-term androgen deficiency on bladder contractility and urothelial mediator release. Naunyn Schmiedebergs Arch Pharmacol 2017; 390:547-556. [PMID: 28190243 DOI: 10.1007/s00210-017-1355-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Accepted: 01/31/2017] [Indexed: 01/23/2023]
Abstract
In men, testosterone levels decline by 1% per year after the age of 40. Reduced androgen levels may directly contribute to lower urinary tract symptoms and bladder dysfunction, although the mechanisms are unclear. This study examined the effect of low testosterone and testosterone replacement on key mechanisms involved in local bladder function. Intraluminal release of the mediators ATP and ACh in response to bladder distension was measured in whole bladders from rats 8 weeks following castration, whilst bladder contractility was assessed using isolated strips. Human urothelial cells were cultured under low, physiological and supra-physiological testosterone conditions for 24 h or 5 days, and stretch-induced release of ATP and ACh was measured. Phasic contractile activity of bladder strips, agonist-induced reponses to carbachol and isoprenaline and nerve-evoked contractions were unaffected by castration. The acetylcholinesterase inhibitor neostigmine significantly increased amplitude of phasic activity only in bladder strips following castration, and this was prevented by testosterone replacement. Intraluminal ACh release following bladder distension was significantly reduced following castration, whilst ATP release was unaffected. In contrast, stretch-induced ATP release from urothelial cells was significantly enhanced in low testosterone conditions, whilst ACh release was unaltered. Testosterone-replacement to physiological levels prevented these changes. Whilst androgen deficiency of 8 weeks does not directly affect contractility of bladder smooth muscle, urothelial mediator release is sensitive to changes in testosterone. These changes in mediator release may be an early effect of the decline in testosterone and could affect sensory pathways in the longer term, contributing to the urinary symptoms and bladder dysfunction seen in androgen-deficient men.
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Affiliation(s)
- Giselle Bravo
- Centre for Urology Research, Faculty of Health Sciences and Medicine, Bond University, Queensland, Australia
| | - Helen Massa
- School of Medical Science, Griffith University, Queensland, Australia
| | | | - Russ Chess-Williams
- Centre for Urology Research, Faculty of Health Sciences and Medicine, Bond University, Queensland, Australia
| | - Catherine McDermott
- Centre for Urology Research, Faculty of Health Sciences and Medicine, Bond University, Queensland, Australia
| | - Donna J Sellers
- Centre for Urology Research, Faculty of Health Sciences and Medicine, Bond University, Queensland, Australia.
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Effects of Intraoperative Anesthetic Medications on Postoperative Urinary Retention After Single-Level Lumbar Fusion. Spine (Phila Pa 1976) 2016; 41:1441-1446. [PMID: 26974835 DOI: 10.1097/brs.0000000000001554] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
STUDY DESIGN Retrospective cohort analysis. OBJECTIVE The aim of the study was to identify medications that may potentially contribute to developing postoperative urinary retention (POUR) after lumbar spinal fusion procedures. SUMMARY OF BACKGROUND DATA POUR is a concerning event that may occur after routine orthopedic surgery. The relation between intraoperative medications and POUR after lumbar spine surgery has not been well characterized. METHODS A prospectively maintained database of patients who underwent a primary single-level, minimally invasive transforaminal lumbar interbody fusion between 2009 and 2013 was reviewed. POUR was defined as a bladder scan of 300 mL or higher, the postoperative necessity of a straight catheterization, or a urology consult for urinary retention. The use and dose-response of intraoperative medications between patients with and without POUR were compared. Potential risk factors for developing POUR were analyzed using multivariate analysis. RESULTS A total of 205 patients were included in the study, 17% of whom experienced POUR (n = 34). Administration of phenylephrine and neostigmine was associated with POUR (phenylephrine: 32.3% vs. 13.8%, P = 0.017; neostigmine: 19.5% vs. 6.5%, P = 0.042). Parametric analysis demonstrated an association of increasing dose of neostigmine with POUR (4.66 vs. 4.22 mg, P = 0.023). Similarly, a nonparametric analysis demonstrated an association of increasing doses of both neostigmine and phenylephrine with POUR (neostigmine: 4.25 vs. 3.16 mg, P = 0.02; phenylephrine: 105.88 vs. 40.64 mg, P = 0.008). CONCLUSION Approximately 20% of patients may develop POUR after routine lumbar spine surgery. The use of certain intraoperative anesthetics such as phenylephrine and neostigmine is strongly associated with the development of POUR postoperatively. This finding suggests that there may be modifiable anesthetic risk factors to prevent the development of POUR in patients undergoing lumbar spine surgery. Future prospective, controlled studies specifically addressing these findings could lead to improved patient care and decreased healthcare costs. LEVEL OF EVIDENCE 4.
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Yılmaz S, Akbaba Y, Özgeriş B, Köse LP, Göksu S, Gülçin İ, Alwasel SH, Supuran CT. Synthesis and inhibitory properties of some carbamates on carbonic anhydrase and acetylcholine esterase. J Enzyme Inhib Med Chem 2016; 31:1484-91. [PMID: 26985691 DOI: 10.3109/14756366.2016.1149477] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
A series of carbamate derivatives were synthesized and their carbonic anhydrase I and II isoenzymes and acetylcholinesterase enzyme (AChE) inhibitory effects were investigated. All carbamates were synthesized from the corresponding carboxylic acids via the Curtius reactions of the acids with diphenyl phosphoryl azide followed by addition of benzyl alcohol. The carbamates were determined to be very good inhibitors against for AChE and hCA I, and II isoenzymes. AChE inhibition was determined in the range 0.209-0.291 nM. On the other hand, tacrine, which is used in the treatment of Alzheimer's disease possessed lower inhibition effect (Ki: 0.398 nM). Also, hCA I and II isoenzymes were effectively inhibited by the carbamates, with inhibition constants (Ki) in the range of 4.49-5.61 nM for hCA I, and 4.94-7.66 nM for hCA II, respectively. Acetazolamide, which was clinically used carbonic anhydrase (CA) inhibitor demonstrated Ki values of 281.33 nM for hCA I and 9.07 nM for hCA II. The results clearly showed that AChE and both CA isoenzymes were effectively inhibited by carbamates at the low nanomolar levels.
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Affiliation(s)
- Süleyman Yılmaz
- a Department of Chemistry , Faculty of Science, Atatürk University , Erzurum , Turkey
| | - Yusuf Akbaba
- a Department of Chemistry , Faculty of Science, Atatürk University , Erzurum , Turkey .,b Department of Basic Science , Faculty of Science, Erzurum Technical University , Erzurum , Turkey
| | - Bünyamin Özgeriş
- a Department of Chemistry , Faculty of Science, Atatürk University , Erzurum , Turkey .,b Department of Basic Science , Faculty of Science, Erzurum Technical University , Erzurum , Turkey
| | - Leyla Polat Köse
- a Department of Chemistry , Faculty of Science, Atatürk University , Erzurum , Turkey
| | - Süleyman Göksu
- a Department of Chemistry , Faculty of Science, Atatürk University , Erzurum , Turkey
| | - İlhami Gülçin
- a Department of Chemistry , Faculty of Science, Atatürk University , Erzurum , Turkey .,c Department of Zoology , College of Science, King Saud University , Riyadh , Saudi Arabia
| | - Saleh H Alwasel
- c Department of Zoology , College of Science, King Saud University , Riyadh , Saudi Arabia
| | - Claudiu T Supuran
- d Dipartimento di Chimica Ugo Schiff, Universita Degli Studi di Firenze , Sesto Fiorentino , Firenze , Italy , and.,e Neurofarba Department, Section of Pharmaceutical and Nutriceutical Sciences, Universita Degli Studi di Firenze , Sesto Fiorentino , Florence , Italy
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13
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Wang D, Yuan X, Hu C, Zhang B, Gao H, Wang D, Chi J, Jing Q, Wu S, Wu CL. Endoplasmic reticulum stress is involved in apoptosis of detrusor muscle in streptozocin-induced diabetic rats. Neurourol Urodyn 2015; 36:65-72. [PMID: 26370333 DOI: 10.1002/nau.22886] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Accepted: 08/27/2015] [Indexed: 12/31/2022]
Abstract
AIMS Endoplasmic reticulum stress (ERS) has been proven to be associated with apoptosis and plays a critical role in the development of many diabetic complications. In the pathogenesis of diabetic cystopathy (DCP), the role of ERS is still unclear. Our study is aimed at the investigation of the involvement of ERS-associated detrusor muscle apoptosis in streptozocin (STZ)-induced diabetic rats. METHODS At different timepoints (4, 8, 12, and 16 weeks after induction of type 1 diabetic rat models), hematoxylin & eosin (H&E) staining was performed to assess the histological changes of the diabetic detrusor; the sub-cellular ultrastructure, especially the zone of endoplasmic reticulum (ER), was observed by transmission electron microscopy (TEM), and the terminal deoxynucleotidyl transferase-mediated DNA nick-end labeling (TUNEL) staining was used to identify the enhanced apoptosis. Moreover, the expression of three hallmarks of ERS-associated apoptosis, including glucose-regulated protein 78 (GRP78), CCAAT/enhancer-binding protein homologous protein (CHOP), and caspase12, was detected by quantitative real-time polymerase chain reaction (qRT-PCR) and Western blot. RESULTS Light microscopic impairments of histology, including progressive loosely packed muscle bundles and increased fibrous tissue, can be seen; the ultrastructural changes featuring the swollen and fused cisternaes in ER zone and deformed nucleus were also observed in the detrusor smooth muscle (DSM). Increased apoptosis and elevated expression of GRP78, CHOP, and caspase12 at both protein and mRNA levels in a time-dependent fashion were detected. CONCLUSIONS The occurrence of ERS-associated apoptosis may be involved in the development of DCP and may contribute to the diabetic detrusor impairment. Neurourol. Urodynam. 36:65-72, 2017. © 2015 Wiley Periodicals, Inc.
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Affiliation(s)
- Dongwen Wang
- First College of Clinical Medicine, Shanxi Medical University, Taiyuan, Shanxi, China.,Department of Urology, First Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Xiaobin Yuan
- First College of Clinical Medicine, Shanxi Medical University, Taiyuan, Shanxi, China.,Department of Urology, First Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Caoyang Hu
- First College of Clinical Medicine, Shanxi Medical University, Taiyuan, Shanxi, China.,Department of Urology, First Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Bin Zhang
- First College of Clinical Medicine, Shanxi Medical University, Taiyuan, Shanxi, China.,Department of Urology, First Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Hongfei Gao
- First College of Clinical Medicine, Shanxi Medical University, Taiyuan, Shanxi, China.,Department of Urology, First Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Dong Wang
- First College of Clinical Medicine, Shanxi Medical University, Taiyuan, Shanxi, China.,Department of Urology, First Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Junjie Chi
- First College of Clinical Medicine, Shanxi Medical University, Taiyuan, Shanxi, China.,Department of Urology, First Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Qiang Jing
- First College of Clinical Medicine, Shanxi Medical University, Taiyuan, Shanxi, China.,Department of Urology, First Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Shulin Wu
- Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Chin-Lee Wu
- Department of Urology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts.,Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
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