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Underactive bladder

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https://www.readbyqxmd.com/read/28637788/the-effects-of-neuromodulation-in-a-novel-obese-prone-rat-model-of-detrusor-underactivity
#1
Eric J Gonzalez, Warren M Grill
Obesity is a global epidemic associated with an increased risk for lower urinary tract dysfunction. Inefficient voiding and urinary retention may arise in late-stage obesity when the expulsive force of the detrusor smooth muscle cannot overcome outlet resistance. Detrusor underactivity (DUA) and impaired contractility may contribute to the pathogenesis of non-obstructive urinary retention. We used cystometry and electrical stimulation of peripheral nerves (pudendal and pelvic n.) to characterize and improve bladder function in urethane-anesthetized obese-prone (OP) and obese-resistant (OR) rats following diet-induced obesity (DIO)...
June 21, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28627603/role-of-stem-cell-factor-in-the-regulation-of-icc-proliferation-and-detrusor-contraction-in-rats-with-an-underactive-bladder
#2
Jianli Feng, Jin Gao, Shan Zhou, Yuanfeng Liu, Yu Zhong, Yong Shu, Ming Sen Meng, Jiaqiang Yan, Danning Sun, Qiang Fang, Daodong Sun
Stem cell factor (SCF) is critical in regulating the proliferation, differentiation and function of the interstitial cells of Cajal (ICCs), which are closely associated with smooth muscle dysfunction. The present study aimed to examine the effect of SCF on ICC proliferation and detrusor contraction in rats with an underactive bladder. Sprague‑Dawley rats were divided into four groups comprising control, control+SCF, detrusor underactivity (DU), and DU+SCF groups. The ICC count was determined using immunofluorescence; serum levels of SCF were determined using an enzyme‑linked immunosorbent assay; mRNA and protein levels of c‑kit and SCF in tissues were assessed using reverse transcription‑quantitative polymerase chain reaction and western blot analyses, respectively...
June 9, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28598556/can-preoperative-detrusor-underactivity-influence-surgical-outcomes-of-120%C3%A2-w-hps-vaporization-of-the-prostate-pvp-or-holmium-laser-enucleation-of-the-prostate-holep-a-serial-3-year-follow-up-study
#3
Min Chul Cho, Juhyun Park, Jung Kwon Kim, Sung Yong Cho, Hyeon Jeong, Seung-June Oh, Jae-Seung Paick, Hwancheol Son
AIMS: To determine the influence of preoperative detrusor underactivity (DU) on serial long-term outcomes of HPS/PVP or HoLEP for LUTS/BPH, and to compare the influence between the two surgeries. METHODS: A total of 382 men, who underwent 120W-HPS/PVP or HoLEP for LUTS/BPH and for whom 36-month follow-up data were available, were classified into four groups: HPS with DU (n = 145), HPS without DU (n = 44), HoLEP with DU (n = 105), and HoLEP without DU (n = 88)...
June 9, 2017: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/28566624/distigmine-bromide-produces-sustained-potentiation-of-guinea-pig-urinary-bladder-motility-by-inhibiting-cholinesterase-activity
#4
Keisuke Obara, Daisuke Chino, Yoshio Tanaka
Distigmine is a cholinesterase (ChE) inhibitor used for the treatment of detrusor underactivity in Japan. Distigmine's pharmacological effects are known to be long-lasting, but the duration of its effect on urinary bladder contractile function has not been fully elucidated. The present study aimed to determine these effects in relation to the plasma concentrations of distigmine and its inhibition of ChE activities in blood, plasma, and bladder tissue. Intravesical pressures were recorded in anesthetized guinea-pigs for 12 h after the intravenous administration of saline or distigmine (0...
2017: Biological & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28546038/-pathophysiology-of-detrusor-underactivity-in-the-elderly
#5
J Kerdraon, B Peyronnet, X Gamé, B Fatton, R Haddad, C Hentzen, C Jeandel, P Mares, M Mezzadri, A-C Petit, G Robain, J-M Vetel, G Amarenco
AIM: The aim of this study was to review the evidence regarding the pathophysiology of detrusor underactivity in the elderly. METHODS: A literature review was conducted in July 2016 using the Medline/Pubmed database limiting the search to works in English or French. RESULTS: The prevalence of detrusor underactivity has been reported to range from 8% to 48% depending on the definition used and the age of the population studied. Current data suggest that aging may itself be a causative factor of detrusor underactivity through myogenic dysfunctions (ultrastructural degeneration of the detrusor muscle) and neurogenic dysfunctions (by degeneration of efferent but mostly afferent innervation mechanisms)...
May 22, 2017: Progrès en Urologie
https://www.readbyqxmd.com/read/28511871/effect-of-distigmine-on-the-contractile-response-of-guinea-pig-urinary-bladder-to-electrical-field-stimulation
#6
Keisuke Obara, Yurina Kobayashi, Daisuke Chino, Yoshio Tanaka
Distigmine bromide (distigmine) is a reversible carbamate group cholinesterase (ChE) inhibitor. Although mainly used clinically for the treatment of myasthenia gravis, distigmine is also indicated for detrusor underactivity in Japan. According to the pharmacological classification of distigmine, its therapeutic effect against detrusor underactivity appears to be produced by enhanced urinary bladder smooth muscle (UBSM) contractility due to an increased concentration of acetylcholine between parasympathetic nerve endings and UBSM cells...
May 13, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28479762/transurethral-resection-of-prostate-in-benign-prostatic-enlargement-with-underactive-bladder-a-retrospective-outcome-analysis
#7
Ashok Kumar Sokhal, Rahul Janak Sinha, Bimalesh Purkait, Vishwajeet Singh
PURPOSE: The purpose of this study was to evaluate the clinical outcome and efficacy of transurethral resection of the prostate in patients of benign prostatic enlargement (BPE) with underactive bladder. MATERIALS AND METHODS: Retrospective study of 174 patients, who underwent transurethral resection of prostate (TURP) between 2008 and 2015, for lower urinary tract symptoms with BPE with bladder underactivity. Clinical history, physical examination, renal function test, urinalysis, cystourethroscopy, transabdominal or transrectal ultrasonography, and urodynamic study were recorded...
April 2017: Urology Annals
https://www.readbyqxmd.com/read/28456349/towards-a-greater-understanding-of-underactive-bladder
#8
EDITORIAL
Mikkel Fode, Jens Sønksen
No abstract text is available yet for this article.
April 26, 2017: European Urology
https://www.readbyqxmd.com/read/28439968/effects-of-an-ep2-and-ep3-receptor-dual-agonist-ono-8055-on-a-radical-hysterectomy-induced-underactive-bladder-model-in-monkeys
#9
Hidekazu Matsuya, Noritoshi Sekido, Jun Kida, Hiroko Mashimo, Daisuke Wakamatsu, Hiroki Okada
OBJECTIVES: The objective was to develop an underactive bladder (UAB) model in primates and to evaluate the potential of prostanoid EP2 and EP3 receptor dual agonist ONO-8055 to become a therapeutic agent for UAB. METHODS: A surgical procedure resembling radical hysterectomy was performed on female cynomolgus monkeys. Subsequently, in vitro muscle strip studies were performed using bladder muscle strips from normal monkeys and monkeys that underwent surgery. In addition, uroflowmetric data were obtained at specified days after the surgery...
April 25, 2017: Lower Urinary Tract Symptoms
https://www.readbyqxmd.com/read/28400168/qualitative-exploration-of-the-patient-experience-of-underactive-bladder
#10
Alan D Uren, Nikki Cotterill, Christopher Harding, Christopher Hillary, Christopher Chapple, Monique Klaver, Dominique Bongaerts, Zalmai Hakimi, Paul Abrams
BACKGROUND: Underactive bladder (UAB) is considered the symptom complex associated with the urodynamic diagnosis of detrusor underactivity. OBJECTIVE: The aim of this research was to investigate the patient reported experience of the symptoms, signs, and impact of UAB. This research is also part of the initial qualitative phase for the development of a new patient reported outcome measure for the assessment of UAB. DESIGN, SETTING, AND PARTICIPANTS: Qualitative methods were used to understand the experience of UAB from a patient perspective, in a purposive sample of male (n=29) and female (n=15) patients aged 27-88 yr (mean: 64 yr), diagnosed with a primary diagnosis of detrusor underactivity, with or without coexisting urological conditions...
April 8, 2017: European Urology
https://www.readbyqxmd.com/read/28376105/video-urodynamic-characteristics-of-non-neurogenic-idiopathic-underactive-bladder-in-men-a-comparison-of-men-with-normal-tracing-and-bladder-outlet-obstruction
#11
Yuan-Hong Jiang, Hann-Chorng Kuo
OBJECTIVE: Underactive bladder is frequently encountered in elderly patients. It may result from detrusor underactivity (DU) or low detrusor contractility due to a urethral sphincter inhibitory effect. This study analyzed the video-urodynamic study (VUDS) characteristics of patients with underactive bladder in a large cohort of men with lower urinary tract symptoms (LUTS). METHODS: Male patients with LUTS who had failed the initial treatment were consecutively enrolled...
2017: PloS One
https://www.readbyqxmd.com/read/28361518/ketanserin-and-naftopidil-enhance-the-potentiating-effect-of-alpha-methyl-serotonin-on-the-neurally-induced-contraction-of-human-isolated-urinary-bladder-muscle-strips
#12
Tsuyoshi Hattori, Philippe Lluel, Céline Rouget, Moèz Rekik, Mitsuharu Yoshiyama
PURPOSE: The aim of this study was to assess the potential involvement of a specific subtype of 5-hydroxytryptamine (5-HT), 5HT2 receptors in neurally-induced contractions of the human detrusor. METHODS: Contractile responses to electrical field stimulation (EFS) were examined in human isolated urinary bladder muscle strips. The potentiation of EFS-induced detrusor contraction was examined by adding cumulative concentrations of a 5-HT and 5-HT2 receptor agonist, α-methyl-serotonin (α-Me-5-HT) (1nM-100μM) in the presence or absence of a 5-HT2 antagonist, ketanserin (5-HT2A>5-HT2C) or naftopidil (5-HT2B>5-HT2A) (0...
March 24, 2017: International Neurourology Journal
https://www.readbyqxmd.com/read/28346712/comparison-of-three-methods-to-analyze-detrusor-contraction-during-micturition-in-men-over-50-years-of-age
#13
Celine Ten Donkelaar S, Peter Rosier, Laetitia de Kort
AIMS: To grade detrusor voiding contraction three parameters are used: the Schäfer pressure-flow nomogram (LinPURR), the bladder contractility index (BCI) and the maximum Watt factor (Wmax ). Because these methods to quantify detrusor contraction and/or to diagnose detrusor underactivity (DU) have not yet been mutually compared, this study compares these three methods of grading detrusor contraction. MATERIALS AND METHODS: Evaluated were 1420 urodynamic pressure-flow studies from 1222 men (aged >50 years) with lower urinary tract symptoms (LUTS)...
March 27, 2017: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/28266820/surgical-treatment-of-detrusor-underactivity-a-short-term-proof-of-concept-study
#14
Jerry G Blaivas, James C Forde, Jonathan L Davila, Lucas Policastro, Michael Tyler, Joshua Aizen, Anand Badri, Rajveer S Purohit, Jeffrey P Weiss
OBJECTIVES: To compare the surgical outcomes of men with bladder outlet obstruction (BOO) due to benign prostatic obstruction (BPO) to those with detrusor underactivity (DU) or acontractile detrusor (DA). MATERIALS AND METHODS: This retrospective, IRB approved study included men who underwent BPO surgery for refractory LUTS or urinary retention. Patients were grouped based on videourodynamic (VUDS) findings: 1) men with BOO, 2) men with DU and 3) men with DA. The primary outcome measure was the Patient Global Impression of Improvement (PGII)...
March 7, 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/28221218/underactive-bladder-detrusor-underactivity-definition-symptoms-epidemiology-etiopathogenesis-and-risk-factors
#15
Reem Aldamanhori, Christopher R Chapple
PURPOSE OF REVIEW: Lower urinary tract symptoms are bothersome and significantly impair patient's quality of life. Incomplete bladder emptying affects both men and women, and has shown to increase in incidence with aging. Incomplete bladder emptying is consequent upon an inability of the detrusor muscle to adequately contract to completely empty the bladder, with or without an increased bladder outlet resistance; this can be defined urodynamically as detrusor underactivity (DUA). The symptom complex consequent upon DUA is referred to as underactive bladder (UAB)...
May 2017: Current Opinion in Urology
https://www.readbyqxmd.com/read/28204989/assessment-of-noninvasive-predictors-of-bladder-detrusor-underactivity-in-bph-luts-patients
#16
Fei Luo, Hong-Hong Sun, Yan-Hui Su, Zhi-Hua Zhang, Ya-Shen Wang, Zhen Zhao, Jian Li
PURPOSE: To retrospectively assess the diagnostic predictive value of clinical characteristics to improve the diagnostic accuracy of bladder detrusor underactivity (DU) among benign prostatic hyperplasia/lower urinary tract symptoms (BPH/LUTS) patients who cannot undergo urodynamic examinations. METHODS: A total of 704 BPH/LUTS patients at Tianjin Medical Union Center from January 2013 through June 2016 were enrolled in the study. All cases were stratified by maximum detrusor pressure (Pdet...
February 15, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28148533/inhibition-of-vascular-smooth-muscle-inward-rectifier-k-channels-restores-myogenic-tone-in-mouse-urinary-bladder-arterioles
#17
Nathan R Tykocki, Adrian D Bonev, Thomas A Longden, Thomas J Heppner, Mark T Nelson
Prolonged decreases in urinary bladder blood flow are linked to overactive and underactive bladder pathologies. However, the mechanisms regulating bladder vascular reactivity are largely unknown. To investigate these mechanisms, we examined myogenic and vasoactive properties of mouse bladder feed arterioles (BFAs). Unlike similar-sized arterioles from other vascular beds, BFAs failed to constrict in response to increases in intraluminal pressure (5-80 mmHg). Consistent with this lack of myogenic tone, arteriolar smooth muscle cell membrane potential was hyperpolarized (-72...
May 1, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28138557/characterization-of-mirna-regulated-networks-hubs-of-signaling-and-biomarkers-in-obstruction-induced-bladder-dysfunction
#18
Ali Hashemi Gheinani, Bernhard Kiss, Felix Moltzahn, Irene Keller, Rémy Bruggmann, Hubert Rehrauer, Catharine Aquino Fournier, Fiona C Burkhard, Katia Monastyrskaya
Bladder outlet obstruction (BOO) induces significant organ remodeling, leading to lower urinary tract symptoms accompanied by urodynamic changes in bladder function. Here, we report mRNA and miRNA transcriptome sequencing of bladder samples from human patients with different urodynamically defined states of BOO. Patients' miRNA and mRNA expression profiles correlated with urodynamic findings. Validation of RNA sequencing results in an independent patient cohort identified combinations of 3 mRNAs (NRXN3, BMP7, UPK1A) and 3 miRNAs (miR-103a-3p, miR-10a-5p, miR-199a-3p) sufficient to discriminate between bladder functional states...
January 26, 2017: JCI Insight
https://www.readbyqxmd.com/read/28042309/the-link-between-vascular-dysfunction-bladder-ischemia-and-aging-bladder-dysfunction
#19
REVIEW
Karl-Erik Andersson, Donna B Boedtkjer, Axel Forman
The vascular supply to the human bladder is derived mainly from the superior and inferior vesical arteries, the latter being directly connected to the internal iliac artery. Aging is associated with an impairment of blood vessel function and changes may occur in the vasculature at the molecular, cellular and functional level. Pelvic arterial insufficiency may play an important role in the development of bladder dysfunctions such as detrusor overactivity (DO) and the overactive bladder syndrome. Chronic ischemia-related bladder dysfunction may progress to bladder underactivity and it would be desirable to treat not only lower urinary tract symptoms (LUTS) induced by chronic ischemia, but also the progression of the morphological bladder changes...
January 2017: Therapeutic Advances in Urology
https://www.readbyqxmd.com/read/27958325/onabotulinumtoxina-urethral-sphincter-injection-as-treatment-for-non-neurogenic-voiding-dysfunction-a-randomized-double-blind-placebo-controlled-study
#20
Yuan-Hong Jiang, Chung-Cheng Wang, Hann-Chorng Kuo
Non-neurogenic voiding dysfunction including dysfunctional voiding and detrusor underactivity caused by a spastic or non-relaxing external urethral sphincter can theoretically be treated by injections of botulinum A toxin into the external urethral sphincter. This randomized, double-blind, placebo-controlled trial was designed to determine the clinical efficacy of onabotulinumtoxinA urethral sphincter injections in patients with dysfunctional voiding or detrusor underactivity. Patients with medically refractory dysfunctional voiding (n = 31) or detrusor underactivity (n = 31) were randomly allocated in a 2:1 ratio to receive either onabotulinumtoxinA (100 U) (n = 38) or placebo (normal saline) (n = 24)...
December 13, 2016: Scientific Reports
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