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https://www.readbyqxmd.com/read/29333618/age-associated-urethral-dysfunction-in-urethane-anesthetized-rats
#1
Ryu Kimura, Minoru Miyazato, Asuka Ashikari, Takuma Oshiro, Seiichi Saito
AIMS: We aimed to investigate the age-associated changes in movement coordination between the urinary bladder and the urethra in rats. METHODS: A total of 17 female Sprague-Dawley rats were used. The rats were divided into young (3 months old) and middle-aged (12-15 months old) groups. In both groups, isovolumetric cystometry and urethral perfusion pressure (UPP) measurements were performed under urethane anesthesia. After the rhythmic bladder contractions stabilized, L-arginine, a nitric oxide (NO) substrate (100 mg/kg), was administered intravenously in both groups...
January 15, 2018: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/29300256/randomized-controlled-trial-to-assess-the-impact-of-intraurethral-lidocaine-on-urodynamic-voiding-parameters
#2
Cassandra K Kisby, Eric J Gonzalez, Anthony G Visco, Cindy L Amundsen, Warren M Grill
OBJECTIVES: The aim of the study was to determine whether intraurethral anesthesia decreases voiding efficiency (VE; voided volume/(voided volume + residual volume)) and impacts other urodynamic parameters in healthy female volunteers during urodynamic studies. METHODS: This was a randomized double-blind placebo-controlled study of asymptomatic women aged 18 to 60 years. Subjects completed a visual analog scale and baseline questionnaires to assess pain and lower urinary tract symptoms, respectively...
January 3, 2018: Female Pelvic Medicine & Reconstructive Surgery
https://www.readbyqxmd.com/read/29298472/electrical-activity-of-the-bladder-is-attenuated-by-intravesical-inhibition-of-p2x2-3-receptors-during-micturition-in-female-rats
#3
Betsy H Salazar, Kristopher A Hoffman, Chuan Zhang, Alex Kavanagh, Yingchun Zhang, Timothy B Boone, Alvaro Munoz
PURPOSE: To simultaneously monitor electrical discharges in various bladder regions and the external urethral sphincter (EUS) during voiding contractions, and to assess the functional role of myogenic modulation of the lower urinary tract (LUT) by ionotropic purinergic receptors containing the P2X3 subunit. METHODS: Female Sprague-Dawley rats were anesthetized with urethane, and implanted with a suprapubic catheter for open cystometry. Flexible microelectrodes were placed ventrally in the bladder dome, upper bladder, lower bladder, and bladder base, along with the middle section of the exposed EUS...
December 2017: International Neurourology Journal
https://www.readbyqxmd.com/read/29298465/near-normalized-gene-expression-profiles-in-bladder-with-detrusor-overactivity-in-rats-with-bladder-outlet-obstruction-after-deobstruction
#4
Tack Lee, U-Sung Lim, Dong Hyuk Kang, Hae-Do Jung, Hyunzu Kim, Bo-Hwa Choi, Ju-Hee Kang, Sang-Min Yoon, Chang-Shin Park
PURPOSE: The pathophysiological role of detrusor overactivity (DO) in the bladder, which is commonly observed in various bladder diseases, is not well understood. DO appears in bladder outlet obstruction (BOO), and may continue even after subsequent deobstruction. DO therefore provides an excellent opportunity to observe molecular biological changes. METHODS: In this study, to understand the molecular effects of persistent DO after BOO induction and deobstruction, we performed awake cystometry on female Sprague-Dawley rats divided into 4 groups: a sham group, a BOO group, a deobstructed group with DO after BOO (DDO), and a deobstructed group without DO after BOO (non-DDO)...
December 2017: International Neurourology Journal
https://www.readbyqxmd.com/read/29290083/the-effects-of-diuresis-duration-of-dialysis-and-age-on-lower-urinary-tract-function-in-urologically-healthy-male-patients-on-the-waiting-list-for-kidney-transplant
#5
Roman Zachoval, Vladimir Borovicka, Tomas Marada, Ondrej Viklicky, Jiri Fronek, Jan Krhut, Libor Janousek, Janka Slatinska, Petr Nencka
PURPOSE: This work investigated the effects of diuresis, duration of dialysis and age on lower urinary tract function in urologically healthy males on the waiting list for kidney transplant. MATERIALS AND METHODS: The study included all men who had kidney transplants at our centre between January 2009 and December 2014 who had normal urological findings prior to inclusion on the list. Diuresis, the duration of haemodialysis, age, and parameters of function of the lower urinary tract as determined by filling and voiding cystometry were evaluated...
December 31, 2017: Urology Journal
https://www.readbyqxmd.com/read/29273299/-self-intermittent-catheterization-and-urinary-retentions-in-parkinsonian-syndromes
#6
E Savard, A Declemy, V Coindreau, F Babany, C Chesnel, A Charlanes, F Le Breton, G Amarenco
INTRODUCTION: Lower urinary tract symptoms are common in Parkinson diseases, especially chronic urinary retention. In case of significant and symptomatic postvoid residual, a specific treatment is necessary in order to empty the bladder and nowadays the gold standard of such neurogenic bladder is based on self-intermittent-catheterizations, if possible at all. We carried out a retrospective study about feasibility and outcomes of self-intermittent-catheterizations in this population. METHODS: Retrospective study with qualitative and quantitative, clinical and instrumental (urodynamic) assessment, of lower urinary tract symptoms as urinary retention in extrapyramidal syndromes...
December 19, 2017: Progrès en Urologie
https://www.readbyqxmd.com/read/29237540/prokinetic-effects-of-neurokinin-2-receptor-agonists-on-the-bladder-and-rectum-of-rats-with-acute-spinal-cord-transection
#7
Lesley Marson, Karl B Thor, Mary Katofiasc, Edward C Burgard, Nadia M J Rupniak
The suitability of various neurokinin-2 (NK2) receptor agonists and routes of administration to elicit on-demand voiding of the bladder and bowel, as future therapy for individuals with spinal cord injury, was examined using a rat model. The current study examined the feasibility of alternative routes of administration, which are more practical for clinical use than intravenous (IV) administration. Voiding and isovolumetric cystometry were recorded in anesthetized, acutely spinalized, female rats after IV, subcutaneous (SC), intramuscular (IM), intranasal (IN), or sublingual (SL) administration of [Lys5,MeLeu9,Nle10]-NKA(4-10] (LMN-NKA)...
December 10, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/29224018/sulforaphane-treatment-of-stress-urinary-incontinence-via-the-nrf2-are-pathway-in-a-rat-model
#8
Xiang Wan, Chong Liu, Yan-Bo Chen, Meng Gu, Zhi-Kang Cai, Qi Chen, Zhong Wang
BACKGROUND/AIMS: To explore the effect of sulforaphane (SFN) treatment in rats through the induction of Stress Urinary Incontinence (SUI) via the Nrf2-ARE pathway. METHODS: A total of 18 female rats (Sprague-Dawley) were assigned to three groups: a control group, an SUI group, and an SUI+SFN group (six rats per group). Rats in the treatment groups were induced via postpartum vaginal balloon dilation and bilateral ovariectomy. Rats in the SUI+SFN group were treated via intraperitoneal injection once per day for a total of one month...
December 8, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29211350/the-angiotensin-ii-receptors-type-1-blockage-affects-the-urinary-bladder-activity-in-hyperosmolar-induced-detrusor-overactivity-in-rats-preliminary-results
#9
Kajetan Juszczak, Piotr Maciukiewicz
BACKGROUND: Angiotensin II receptors play a role in the pathogenesis of urinary bladder dysfunction, especially in the case of bladder outlet obstruction. The function of these receptors in the detrusor overactivity (DO) still remains unclear. OBJECTIVES: The study aims to investigate some of the mechanisms through which hyperosmolarity induces urinary bladder overactivity. The effect of angiotensin II receptor type 1 - AT1 (telmisartan) on urinary bladder function in physiological state and in hyperosmolar-induced DO in rat model was explored...
October 2017: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/29199948/brainstem-network-dynamics-underlying-the-encoding-of-bladder-information
#10
Anitha Manohar, Andre L Curtis, Stephen A Zderic, Rita J Valentino
Urodynamic status must interact with arousal and attentional processes so that voiding occurs under appropriate conditions. To elucidate the central encoding of this visceral demand, multisite recordings were made within a putative pontine-cortical micturition circuit from the pontine micturition center (PMC), locus coeruleus (LC) and medial prefrontal cortex (mPFC) during cystometry in unanesthetized rats. PMC neurons had homogeneous firing patterns, characterized by tonic activity and phasic bursts that were temporally associated with distinct phases of the micturition cycle...
December 4, 2017: ELife
https://www.readbyqxmd.com/read/29176315/protective-effects-of-antimuscarinics-on-the-bladder-remodeling-after-bladder-outlet-obstruction
#11
Qiang Liu, Deyi Luo, Tongxin Yang, Banghua Liao, Hong Li, Kun-Jie Wang
BACKGROUND/AIMS: Overactive bladder associated with bladder outlet obstruction (BOO) is a highly prevalent condition, which is usually treated with antimuscarinics. However, the potential effects of antimuscarinics on the structure and function of bladder have not been investigated thus far. METHODS: Sprague-Dawley(R) rats accepted bladder neck obstruction surgery or sham surgery, and then received treatment of three different antimuscarinics (Solifenacin, Darifenacin, and Tolterodine) or vehicle...
November 24, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29164680/effects-of-tadalafil-on-storage-and-voiding-function-in-patients-with-male-lower-urinary-tract-symptoms-suggestive-of-benign-prostatic-hyperplasia-a-urodynamic-based-study
#12
Yoshihisa Matsukawa, Tsuyoshi Majima, Kazuna Matsuo, Yasuhito Funahashi, Masashi Kato, Tokunori Yamamoto, Momokazu Gotoh
OBJECTIVE: To investigate the effects of tadalafil on storage and voiding function in treatment-naïve patients with lower urinary tract symptoms suggestive of benign prostatic hyperplasia, based on a urodynamic study. METHODS: This was an open-labeled, single-center, prospective study. A total of 80 untreated outpatients with lower urinary tract symptoms suggestive of benign prostatic hyperplasia received tadalafil 5 mg/day for 12 weeks. Subjective symptoms and objective findings on voiding and storage function obtained through urodynamic studies, including cystometry and pressure flow study, were evaluated before and after treatment...
November 22, 2017: International Journal of Urology: Official Journal of the Japanese Urological Association
https://www.readbyqxmd.com/read/29160569/reconstruction-of-bladder-function-and-prevention-of-renal-deterioration-by-means-of-end-to-side-neurorrhaphy-in-rats-with-neurogenic-bladder
#13
Yun Long Li, Jian Jun Wen, Yi Bo Wen, Xiang Fei He, Jun Wei Wu, Yan Wei Li, Zhong Jiang Han, Jin Jin Feng, Shao Hua Yan, Shou Lin Li, John Pfa Heesakkers, Wan Sheng Gao, Jian Guo Wen
AIMS: To investigate the feasibility of restoring bladder function and prevention of renal deterioration by neurorrhaphy in rats with neurogenic bladder (NB). METHODS: Forty-two rats were assigned to the end-to-side nerve coaptation group (ECG, n = 16), no nerve coaptation group (NCG, n = 16), and control group (CG, n = 10). In the ECG, the left ventral root (VR) and dorsal root (DR) of L6 and S1 were transected, and the distal stump of L6VR was sutured to the lateral face of L4VR...
November 21, 2017: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/29141938/stimulation-of-the-sensory-pudendal-nerve-increases-bladder-capacity-in-the-rat
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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
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