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https://www.readbyqxmd.com/read/29141938/stimulation-of-the-sensory-pudendal-nerve-increases-bladder-capacity-in-the-rat
#1
James A Hokanson, Christopher L Langdale, Arun Sridhar, Warren M Grill
Pudendal nerve stimulation is a promising treatment approach for lower urinary tract dysfunction, including symptoms of overactive bladder. Despite some promising clinical studies, there remain many unknowns as to how best to stimulate the pudendal nerve to maximize therapeutic efficacy. We quantified changes in bladder capacity and voiding efficiency during single-fill cystometry in response to electrical stimulation of the sensory branch of the pudendal nerve in urethane-anesthetized female Wistar rats. Increases in bladder capacity were dependent on both stimulation amplitude and rate...
November 15, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/29135143/-the-effectiveness-of-uroprofit-in-women-with-chronic-cystitis
#2
A I Neimark, B A Neimark, N A Nozdrachev, K A Sizov, M V Razdorskaya
AIM: To evaluate the effectiveness of the biologically active dietary supplement Uroprofit in the comprehensive management of exacerbations of chronic recurrent cystitis in women. MATERIALS AND METHODS: We examined 40 women with chronic cystitis aged 20-68 years. All patients were allocated to receive either monotherapy with fosfomycin (Monural) (control group, n=20) or combination therapy with fosfomycin and biologically active dietary supplement Uroprofit (study group, n=20)...
October 2017: Urologii︠a︡
https://www.readbyqxmd.com/read/29112292/a-kit-ligand-stem-cell-factor-as-a-possible-mediator-inducing-overactive-bladder
#3
Yasue Kubota, Takashi Hamakawa, Satoshi Osaga, Atsushi Okada, Shuzo Hamamoto, Noriyasu Kawai, Kenjiro Kohri, Takahiro Yasui
OBJECTIVE: To investigate whether c-kit ligand, stem cell factor (SCF) affects the biological behavior of overactive bladder (OAB) and discuss the role of SCF as a possible mediator inducing OAB. MATERIALS AND METHODS: First, we performed an immunohistochemical study to examine the localization of SCF in the guinea pig and human bladder. Next, urinary SCF levels were measured in patients with OAB and in control subjects to evaluate a potential biomarker for the diagnosis of OAB...
November 7, 2017: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/29105998/possible-role-of-hyposensitivity-of-c-fiber-afferents-at-the-proximal-urethra-in-the-development-of-urge-urinary-incontinence-in-patients-with-detrusor-overactivity
#4
Osamu Ichiyanagi, Akira Nagaoka, Sei Naito, Masaaki Tsukigi, Mayu Yagi, Tomoyuki Kato, Manabu Ishigooka, Norihiko Tsuchiya
OBJECTIVE: The aim of the present study was to investigate associations between urethral sensation and urge urinary incontinence (UUI) in patients with and without detrusor overactivity (DO). METHODS: The medical records of 80 consecutive patients who underwent filling cystometry and urethral current perception threshold (CPT) tests were examined retrospectively. Following the exclusion of 4 patients not eligible for analysis, patients were classified into neurogenic DO, idiopathic DO, or DO-negative groups based on neurological and cystometric findings (n = 30, 12, and 34, respectively)...
November 6, 2017: Lower Urinary Tract Symptoms
https://www.readbyqxmd.com/read/29092846/bdnf-overexpression-in-bladder-induces-neuronal-changes-to-mediate-bladder-overactivity
#5
Mahendra Kashyap, Subrata Pore, William C de Groat, Christopher Chermansky, Naoki Yoshimura, Pradeep Tyagi
Elevated levels of brain derived neurotrophic factor (BDNF) in urine of overactive bladder (OAB) patients support the association of BDNF with OAB symptoms, but the causality is not known. Here, we investigated the functionality of BDNF overexpression in rat bladder following bladder wall transfection of either BDNF or luciferase transgenes (10µg). A week after transfection, BDNF overexpression in bladder tissue and elevation of urine BDNF levels was observed together with increased transcript of BDNF, its cognate receptors (TrkB & p75NTR) and downstream PLCγ isoforms in bladder...
November 1, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/29079907/-urodynamic-studies-prior-to-urinary-incontinence-surgery-what-is-useful
#6
REVIEW
A Kaufmann
Surgery is often necessary after failure of conservative therapy for urinary incontinence. Guidelines recommend urodynamic studies before surgery. A distinction is made between non-invasive (uroflowmetry) and invasive methods (cystometry and pressure-flow study, if necessary as combined videourodynamics, as well as urethral pressure profile). All examinations serve to objectify and quantify the symptoms, to correctly assign symptoms to the pathophysiology and anatomy as well as to identify risk factors, which often have a significant influence on the success of surgical therapy...
October 27, 2017: Der Urologe. Ausg. A
https://www.readbyqxmd.com/read/29076300/improvement-of-persistent-detrusor-overactivity-through-treatment-with-a-phytotherapeutic-agent-wsy-1075-after-relief-of-bladder-outlet-obstruction
#7
Su Jin Kim, Seung Hwan Jeon, Eun Bi Kwon, Hyun Cheol Jeong, Sae Woong Choi, Woong Jin Bae, Hyuk Jin Cho, U Syn Ha, Sung Hoo Hong, Ji Youl Lee, Sung Yeoun Hwang, Sae Woong Kim
PURPOSE: Many patients with benign prostatic hyperplasia need treatment for remaining storage symptoms after surgery. Therefore, we evaluated the effect of the phytotherapeutic agent WSY-1075 on persistent detrusor overactivity (DO) after the relief of bladder outlet obstruction (BOO). MATERIALS AND METHODS: Rats were assigned to 3 groups: control (n=6), persistent DO (n=6), and persistent DO treated with the phytotherapeutic agent WSY-1075 (n=6). Persistent DO after relief of partial BOO was generated in the rat model, and 6 of the rats with this condition were orally administered WSY-1075...
October 25, 2017: World Journal of Men's Health
https://www.readbyqxmd.com/read/29051005/protective-effect-of-a-rho-kinase-inhibitor-on-bladder-dysfunction-in-a-rat-model-of-chronic-bladder-ischemia
#8
Hidenori Akaihata, Masanori Nomiya, Kanako Matsuoka, Tomoyuki Koguchi, Junya Hata, Nobuhiro Haga, Nobuhiro Kushida, Kei Ishibashi, Ken Aikawa, Yoshiyuki Kojima
OBJECTIVES: To investigate the effect of fasudil, a Rho-kinase inhibitor, on chronic ischemia-related bladder dysfunction. METHODS: Male Sprague-Dawley rats (16 weeks old) were divided into control, chronic bladder ischemia (CBI) and CBI with fasudil treatment (CBI/Fa) groups. The CBI and CBI/Fa groups underwent balloon endothelial injury of bilateral iliac arteries and received a 2% cholesterol diet for 8 weeks after the procedure to induce chronic bladder ischemia...
October 16, 2017: Urology
https://www.readbyqxmd.com/read/29032116/mechanisms-of-action-for-%C3%AE-1-adrenoceptor-blockers-in-storage-symptoms-with-new-insights-into-the-micturition-reflex
#9
REVIEW
Tsuyoshi Hattori, Kimio Sugaya
Elderly patients suffering from lower urinary tract symptoms with benign prostatic hyperplasia (BPH) are widely prescribed α1-adrenoceptor blockers (α1-blockers) to improve voiding and storage symptoms. The mechanism of action for improvements in voiding symptoms is well understood; tonus of the urethra and prostate are decreased and urinary flow rate is increased by α1-blockers. However, the mechanisms underlying storage symptoms have remained unclear, although detrusor hyperactivity has been identified as a significant factor...
October 11, 2017: Life Sciences
https://www.readbyqxmd.com/read/28954463/comparison-of-5-different-rat-models-to-establish-a-standard-animal-model-for-research-into-interstitial-cystitis
#10
Phil Hyun Song, So Young Chun, Jae-Wook Chung, Yeon Yong Kim, Hyo Jung Lee, Jun Nyung Lee, Yun-Sok Ha, Eun Sang Yoo, Tae Gyun Kwon, Jeongshik Kim, Dae Hwan Kim, Bum Soo Kim
PURPOSE: We evaluated 5 different rat models using different agents in order to establish a standard animal model for interstitial cystitis (IC) in terms of the functional and pathologic characteristics of the bladder. METHODS: Five IC models were generated in 8-week-old female Sprague-Dawley rats via transurethral instillation of 0.1M hydrogen chloride (HCl) or 3% acetic acid (AA), intraperitoneal injection of cyclophosphamide (CYP) or lipopolysaccharide (LPS), or subcutaneous injection of uroplakin II (UPK2)...
September 2017: International Neurourology Journal
https://www.readbyqxmd.com/read/28892272/effect-of-cerebrospinal-fluid-shunt-surgery-on-lower-urinary-tract-dysfunction-in-idiopathic-normal-pressure-hydrocephalus
#11
Seiji Aruga, Nobumasa Kuwana, Yoshiharu Shiroki, Shintaro Takahashi, Naoyuki Samejima, Akira Watanabe, Yojiro Seki, Yasuhiko Igawa, Yukio Homma
AIMS: To examine the outcomes of lower urinary tract symptoms (LUTS) and urodynamic test results after cerebrospinal fluid (CSF) shunt surgery in idiopathic normal pressure hydrocephalus (iNPH). METHODS: Records of 48 patients (33 men; 15 women), who met the definite iNPH criteria and underwent CSF shunt surgery, were retrospectively analyzed. LUTS and their impact on quality of life (QOL) were evaluated using an all-or-none questionnaire targeting four symptoms, the Overactive Bladder Symptoms Score (OABSS), and the QOL index...
September 11, 2017: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/28838284/enhancing-the-radiation-response-of-tumors-but-not-early-or-late-responding-normal-tissues-using-a-vascular-disrupting-agent
#12
Michael R Horsman
INTRODUCTION: Vascular disrupting agents (VDAs) damage tumor vasculature and enhance tumor radiation response. In this pre-clinical study, we combined radiation with the leading VDA in clinical development, combretastatin A-4 phosphate (CA4P), and compared the effects seen in tumors and relevant normal tissues. MATERIAL AND METHODS: Radiation was applied locally to tissues in CDF1 mice to produce full radiation dose-response curves. CA4P (250 mg/kg) was intraperitoneally (i...
November 2017: Acta Oncologica
https://www.readbyqxmd.com/read/28782191/tadalafil-a-phosphodiesterase-type-5-inhibitor-improves-bladder-blood-supply-and-restores-the-initial-phase-of-lower-urinary-tract-dysfunction-in-diabetic-rats
#13
Daisuke Gotoh, Kazumasa Torimoto, Yoshihiro Tatsumi, Shunta Hori, Atsushi Yamada, Makito Miyake, Yosuke Morizawa, Katsuya Aoki, Nobumichi Tanaka, Akihide Hirayama, Kiyohide Fujimoto
AIMS: To investigate the effect of tadalafil on bladder blood flow and lower urinary tract function in a rat model of diabetes. MATERIALS AND METHODS: We studied female Sprague-Dawley rats and induced diabetes in some using a single intraperitoneal injection of streptozotocin. We divided the rats into nondiabetes (ND), diabetes (D), and diabetes with tadalafil (DT) groups. The rats were raised for an additional 7 weeks after diabetes induction. The DT group received oral tadalafil (2 mg/kg/day) for 7 days before the experiments...
August 7, 2017: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/28776505/effects-of-cathodal-trans-spinal-direct-current-stimulation-on-lower-urinary-tract-function-in-normal-and-spinal-cord-injury-mice-with-overactive-bladder
#14
Zaghloul Ahmed
OBJECTIVE: Lower urinary tract (LUT) dysfunction is a monumental problem affecting quality of life following neurotrauma, such as spinal cord injury (SCI). Proper function of the bladder and its associated structures depends on coordinated activity of the neuronal circuitry in the spinal cord and brain. Disconnection between the spinal and brain centers controlling the LUT causes fundamental changes in the mechanisms involved in the micturition and storage reflexes. We investigated the effects of cathodal trans-spinal direct current stimulation (c-tsDCS) of the lumbosacral spine on bladder and external urinary sphincter (EUS) functions...
October 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28768666/oab-without-an-overactive-bladder-in-the-acute-prostaglandin-e2-rat-model
#15
James A Hokanson, Christopher L Langdale, Arun Sridhar, Warren M Grill
Intravesical Prostaglandin E2 (PGE2) was previously used to induce overactive bladder (OAB) symptoms as it reduces bladder capacity in rats and causes a "strong urgency sensation" in healthy women. However, the mechanism by which this occurs is unclear. To clarify how PGE2 reduces bladder capacity, 100 µM PGE2 was administered intravesically during open, single-fill cystometry with simultaneous measurement of sphincter EMG in the urethane-anesthetized female Wistar rat. PGE2 was also applied to the urethra or bladder selectively by use of a ligature at the bladder neck prior to (urethra) or during (bladder) closed-outlet, single-fill cystometry...
August 2, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28768664/preventative-effects-of-a-hif-inhibitor-17-dmag-on-partial-bladder-outlet-obstruction-induced-bladder-dysfunction
#16
Nao Iguchi, M İrfan Dönmez, Anna P Malykhina, Alonso Carrasco, Duncan T Wilcox
Posterior urethral valves are the most common cause of partial bladder outlet obstruction (PBOO) in the pediatric population. Pathological changes in the bladder developed during PBOO are responsible for long-lasting voiding dysfunction in this population despite early surgical interventions. Increasing evidence showed PBOO induces an upregulation of Hypoxia inducible factors (HIFs) and their transcriptional target genes, and they play a role in pathophysiological changes in the obstructed bladders. We hypothesized that blocking HIF pathways can prevent PBOO-induced bladder dysfunction...
August 2, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28762178/the-influence-of-duloxetine-on-detrusor-overactivity-in-rats-with-depression-induced-by-13-cis-retinoic-acid
#17
Andrzej Wróbel, Ewa Rechberger, Tomasz Rechberger
INTRODUCTION AND HYPOTHESIS: The aim of this study was to assess the efficacy of duloxetine in an animal model of detrusor overactivity induced by depression. METHODS: After 6 weeks of 13-cis-retinoic acid administration at a dose of 1 mg/kg/day, rats were given duloxetine at a dose of 1 mg/kg. This was followed by conscious cystometry, a forced swim test, and locomotor activity measurement. The levels of corticotropin-releasing factor (CRF) in the hypothalamus, amygdala and plasma were also determined...
July 31, 2017: International Urogynecology Journal
https://www.readbyqxmd.com/read/28757173/are-patients-with-bladder-oversensitivity-different-from-those-with-urodynamically-proven-detrusor-overactivity-in-female-overactive-bladder-syndrome
#18
Sung-Lang Chen, Soo-Cheen Ng, Yu-Hui Huang, Gin-Den Chen
BACKGROUND: To determine if there are clinical and urodynamic (UD) differences between female overactive bladder (OAB) patients with bladder oversensitivity (BO) and detrusor overactivity (DO) via a much lower filling rate. METHODS: In total, 205 patients with OAB symptoms were recruited for this study. During filling cystometry, the bladder was filled at a more "physiological" rate of 20 ml/min. All patients underwent a complete urogynecological evaluation including detailed history, physical examination, urinalysis, pad test for quantification of urine leakage, 3-day frequency-volume chart (FVC) documentation, and completion of a UD study...
July 27, 2017: Journal of the Chinese Medical Association: JCMA
https://www.readbyqxmd.com/read/28756610/treatment-of-obesity-associated-overactive-bladder-by-the-phosphodiesterase-type-4-inhibitor-roflumilast
#19
Honglin Ding, Ning Li, Xiaoning He, Bing Liu, Liming Dong, Yili Liu
PURPOSE: To prove that phosphodiesterase type-4 inhibitors could potentially treat obesity-associated overactive bladder through modulation of the systemic inflammatory response. METHODS: In this 12-week study, 90 female Sprague-Dawley rats were divided into three groups: (1) vehicle-treated normal diet (ND)-fed rats; (2) vehicle-treated high-fat diet (HFD)-fed rats; and (3) roflumilast-treated HFD-fed rats. Oral roflumilast (5 mg/kg/day) was administered during the last 4 weeks of HFD feeding in the test group...
October 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28748746/long-term-urodynamic-findings-following-radical-prostatectomy-and-salvage-radiotherapy
#20
Maria Ervandian, Jens Christian Djurhuus, Morten Høyer, Charlotte Graugaard-Jensen, Michael Borre
OBJECTIVE: Lower urinary tract symptoms (LUTS) are common following radical prostatectomy (RP) or intended curative radiotherapy in prostate cancer patients. One-quarter of those treated with RP experience biochemical failure and are subsequently offered salvage radiotherapy (SRT) to the prostatic bed. The aim of this study was to elucidate long-term LUTS after surgery and SRT. MATERIALS AND METHODS: Urodynamic parameters from 16 patients treated with RP and subsequent SRT in the period 2000-2010 were evaluated with uroflowmetry, filling cystometry, pressure-flow and urethral pressure profile (UPP)...
July 27, 2017: Scandinavian Journal of Urology
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