Abstract:
PURPOSE:The aim of this study was to characterize the responsiveness of miniature excitatory postsynaptic currents (mEPSCs) to α1-adrenoceptor blockers in substantia gelatinosa (SG) neurons from the spinal cord to develop an explanation for the efficacy of α1-adrenoceptor blockers in micturition dysfunction. METHODS:Male adult Sprague-Dawley rats were used. Blind whole-cell patch-clamp recordings were performed using SG neurons in spinal cord slices. Naftopidil (100μM), tamsulosin (100μM), or silodosin (30μM), α1-adrenoceptor blockers, was perfused. The frequency of mEPSCs was recorded in an SG neuron to which the 3 blockers were applied sequentially with wash-out periods. Individual frequencies in a pair before naftopidil and tamsulosin perfusion were plotted as baseline, and the correlation between them was confirmed by Spearman correlation coefficient; linear regression was then performed. The same procedure was performed before naftopidil and silodosin perfusion. Frequencies of pairs after naftopidil and tamsulosin perfusion and after naftopidil and silodosin perfusion were similarly analyzed. The ratios of the frequencies after treatment to before were then calculated. RESULTS:After the treatments, Spearman ρ and the slope were decreased to 0.682 from 0.899 at baseline and 0.469 from 1.004 at baseline, respectively, in the tamsulosin group relative to the naftopidil group. In the silodosin group, Spearman ρ and the slope were also decreased to 0.659 from 0.889 at baseline and 0.305 from 0.989 at baseline, respectively, relative to the naftopidil group. Naftopidil significantly increased the ratio of the frequency of mEPSCs compared to tamsulosin and silodosin (P=0.015 and P=0.004, respectively). CONCLUSION:There was a difference in responsiveness in the frequency of mEPSCs to α1-adrenoceptor blockers, with the response to naftopidil being the greatest among the α1-adrenoceptor blockers. These data are helpful to understand the action mechanisms of α1-adrenoceptor blockers for male lower urinary tract symptoms in clinical usage.
journal_name
Int Neurourol Jjournal_title
International neurourology journalauthors
Uta D,Hattori T,Yoshimura Mdoi
10.5213/inj.1938056.028subject
Has Abstractpub_date
2019-03-01 00:00:00pages
13-21issue
1eissn
2093-4777issn
2093-6931pii
inj.1938056.028journal_volume
23pub_type
杂志文章abstract:PURPOSE:This study aimed to set priorities for improving the medical device distribution structure and to suggest an innovative improvement plan for the distribution structure using the analytic hierarchy process (AHP) method, focusing on stakeholders in the medical device industry. METHODS:This study conducted a surv...
journal_title:International neurourology journal
pub_type: 杂志文章
doi:10.5213/inj.1836152.076
更新日期:2018-07-01 00:00:00
abstract:PURPOSE:In this study, we compared the treatment outcomes for an α-blocker between 2 groups of men, one with high sympathetic activity (HSA) and another with low sympathetic activity (LSA) or normal sympathetic activity. METHODS:A total of 159 men (≥50 years of age) with lower urinary tract symptoms resulting from ben...
journal_title:International neurourology journal
pub_type: 杂志文章
doi:10.5213/inj.2015.19.2.107
更新日期:2015-06-01 00:00:00
abstract:PURPOSE:As the elderly population increases, a growing number of patients have lower urinary tract symptom (LUTS)/benign prostatic hyperplasia (BPH). The aim of this study was to develop decision support formulas and nomograms for the prediction of bladder outlet obstruction (BOO) and for BOO-related surgical decision-...
journal_title:International neurourology journal
pub_type: 杂志文章
doi:10.5213/inj.1734852.426
更新日期:2017-04-01 00:00:00
abstract:PURPOSE:To investigate the clinical factors associated with the feeling of incomplete bladder emptying in female patients with lower urinary tract symptoms (LUTS). METHODS:Records were obtained from a prospectively maintained database for 353 female patients without a history of treatment for LUTS. Patients with comor...
journal_title:International neurourology journal
pub_type: 杂志文章
doi:10.5213/inj.1938256.128
更新日期:2020-06-01 00:00:00
abstract::This review assessed the epidemiology of voiding dysfunctions in South Korea. Comprehensive understanding of this epidemiology is crucial because the senior population and the social burden are increasing because of voiding dysfunctions is growing. We searched the medical records using several terms related to voiding...
journal_title:International neurourology journal
pub_type: 杂志文章,评审
doi:10.5213/inj.1630502.251
更新日期:2016-06-01 00:00:00
abstract::Aminopyridines are potassium channel blockers that increase the excitability of nerve cells and axons; therefore, they are widely used to treat different neurological disorders. Here we present a patient with idiopathic downbeat nystagmus and lower urinary tract symptoms (LUTS) due to benign prostatic hyperplasia who ...
journal_title:International neurourology journal
pub_type: 杂志文章
doi:10.5213/inj.2014.18.4.221
更新日期:2014-12-01 00:00:00
abstract:PURPOSE:Lower urinary tract dysfunction is the most common complication after radical pelvic surgery. The aims of this study were to assess the effect of radical hysterectomy (RH) on the storage function of the lower urinary tract and to evaluate the impact of radiation therapy (RT) on postoperative urodynamic paramete...
journal_title:International neurourology journal
pub_type: 杂志文章
doi:10.5213/inj.2012.16.2.91
更新日期:2012-06-01 00:00:00
abstract:PURPOSE:Benign prostatic hyperplasia is often accompanied by age-related comorbidity, such as erectile dysfunction (ED). Recent data suggest an association between ED and lower urinary tract symptoms (LUTS), and increasing evidence indicates that the clinical use of phosphodiesterase type 5 (PDE5) inhibitors provides r...
journal_title:International neurourology journal
pub_type: 杂志文章
doi:10.5213/inj.2010.14.1.7
更新日期:2010-04-01 00:00:00
abstract:PURPOSE:We quantified and described the economic burden of overactive bladder and stress urinary incontinence in Korea. We calculated direct costs by identifying public and private data sources that contain population-based data on resource utilization by patients with stress urinary incontinence and overactive bladder...
journal_title:International neurourology journal
pub_type: 杂志文章
doi:10.5213/inj.2012.16.1.23
更新日期:2012-03-01 00:00:00
abstract:PURPOSE:To assess the efficacy of the continuous positive airway pressure (CPAP) on nocturia in patients with obstructive sleep apnea (OSA). METHODS:A literature review was performed to identify all published clinical trials of CPAP for the treatment of nocturia. The search included the following databases: MEDLINE, E...
journal_title:International neurourology journal
pub_type: 杂志文章
doi:10.5213/inj.2015.19.3.178
更新日期:2015-09-01 00:00:00
abstract::[This corrects the article on p. 122 in vol. 20, PMID: 27377944.]. ...
journal_title:International neurourology journal
pub_type: 已发布勘误
doi:10.5213/inj.1620err.002
更新日期:2016-12-01 00:00:00
abstract::Lower urinary tract symptoms (LUTS) are a cluster of voiding symptoms, such as weak stream, hesitancy, intermittency, urinary frequency, urgency, and nocturia. LUTS are frequent in elderly men and it considered the ultimate clinical symptoms of benign prostatic hyperplasia. With aging, male hypogonadism is increased w...
journal_title:International neurourology journal
pub_type: 杂志文章
doi:10.5213/inj.2040234.117
更新日期:2021-01-19 00:00:00
abstract::[This corrects the article on p. 164 in vol. 14, PMID: 21179334.]. ...
journal_title:International neurourology journal
pub_type: 杂志文章,已发布勘误
doi:10.5213/inj.2011.15.3.181
更新日期:2011-09-01 00:00:00
abstract:PURPOSE:To evaluate the effects of botulinum toxin on urodynamic parameters and quality of life in patients with neurogenic detrusor overactivity. METHODS:Thirty four adult patients with spinal cord injury and detrusor overactivity were selected. The patients received 300 units of botulinum toxin type A. The endpoints...
journal_title:International neurourology journal
pub_type: 杂志文章
doi:10.5213/inj.2012.16.3.139
更新日期:2012-09-01 00:00:00
abstract:PURPOSE:Ketamine may decrease core-to-peripheral redistribution of heat through direct central sympathetic stimulation and inhibition of norepinephrine uptake into postganglionic sympathetic nerve endings. The purpose of this study was to evaluate the efficacy of epidural ketamine in preventing shivering during transur...
journal_title:International neurourology journal
pub_type: 杂志文章
doi:10.5213/inj.2010.14.2.105
更新日期:2010-08-01 00:00:00
abstract:PURPOSE:Bladder wall thickness has been reported to be associated with overactive bladder (OAB) in women. Diabetic women have an increased risk for OAB syndrome and may have an increased risk for bladder wall thickness. METHODS:A total of 235 female patients aged 40 to 75 years were categorized into four groups. The f...
journal_title:International neurourology journal
pub_type: 杂志文章
doi:10.5213/inj.2013.17.2.67
更新日期:2013-06-01 00:00:00
abstract:PURPOSE:We aimed to evaluate obesity, a risk factor of metabolic syndrome, and its association with prostatic enlargement in a retrospective cohort in Korea. METHODS:Baseline data were obtained from the Korean Genome and Epidemiology Study on Atherosclerosis Risk of Rural Areas in the Korean General Population (KoGES-...
journal_title:International neurourology journal
pub_type: 杂志文章
doi:10.5213/inj.1632584.292
更新日期:2016-12-01 00:00:00
abstract:PURPOSE:Sacral nerve stimulation has been used to treat overactive bladder. This study evaluated the effects of stimulation using different pulse widths on the inhibition of bladder overactivity by sacral nerve stimulation (SNM) in pigs. METHODS:Implant-driven stimulators were used to stimulate the S3 spinal nerve in ...
journal_title:International neurourology journal
pub_type: 杂志文章
doi:10.5213/inj.1938042.021
更新日期:2019-06-01 00:00:00
abstract:PURPOSE:To review the clinical outcomes of patients with voiding dysfunction who have detrusor overactivity with impaired contractility (DOIC) diagnosed with urodynamic studies. METHODS:Urodynamic reports from 2005 to 2009 were reviewed, and 54 male patients had findings consistent with DOIC. Patients with acontractil...
journal_title:International neurourology journal
pub_type: 杂志文章
doi:10.5213/inj.2014.18.3.133
更新日期:2014-09-01 00:00:00
abstract:PURPOSE:Maintaining urinary continence at stress requires a competent urethral sphincter and good suburethral support. Sphincter competence is estimated by measuring the maximal urethral closure pressure at rest. We aimed to study the value of a new urodynamic measure, the urethral closure pressure at stress (s-UCP), i...
journal_title:International neurourology journal
pub_type: 杂志文章
doi:10.5213/inj.1732686.343
更新日期:2017-06-01 00:00:00
abstract:PURPOSE:To evaluate whether hydrodistention with fulguration of Hunner lesions (HD/FUL) plus maintenance dimethyl sulfoxide (DMSO) therapy prolongs the recurrence-free time in patients with Hunner type interstitial cystitis (IC). METHODS:The study enrolled patients with Hunner type IC who required repeat HD/FUL due to...
journal_title:International neurourology journal
pub_type: 杂志文章
doi:10.5213/inj.1938110.055
更新日期:2019-12-01 00:00:00
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journal_title:International neurourology journal
pub_type: 杂志文章
doi:10.5213/inj.1938190.095
更新日期:2019-11-01 00:00:00
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journal_title:International neurourology journal
pub_type: 杂志文章
doi:10.5213/inj.1734992.496
更新日期:2017-12-01 00:00:00
abstract::The neurological coordination of the lower urinary tract can be analyzed from the perspective of motor neurons or sensory neurons. First, sensory nerves with receptors in the bladder and urethra transmits stimuli to the cerebral cortex through the periaqueductal gray (PAG) of the midbrain. Upon the recognition of stim...
journal_title:International neurourology journal
pub_type: 杂志文章
doi:10.5213/inj.2040318.159
更新日期:2020-09-01 00:00:00
abstract::A noncontact mapping system (EnSite) was used for electroanatomical mapping of the bladder simultaneously with pressure flow study in three women with lower urinary tract symptoms. We selected the periods of obvious detrusor activity. Data were processed to remove baseline drift, and an envelope of electrovesicography...
journal_title:International neurourology journal
pub_type: 杂志文章
doi:10.5213/inj.1630504.252
更新日期:2016-06-01 00:00:00
abstract::In the brain, brief episodes of ischemia induce tolerance against a subsequent severe episode of ischemia. This phenomenon of endogenous neuroprotection is known as preconditioning-induced ischemic tolerance. The purpose of this review is to summarize the current state of knowledge about mechanisms and potential appli...
journal_title:International neurourology journal
pub_type: 杂志文章
doi:10.5213/inj.2010.14.4.203
更新日期:2010-12-01 00:00:00
abstract:PURPOSE:Clean intermittent self-catheterization (CISC) is now considered the gold standard for the management of urinary retention. In the literature, several articles on patients' perspectives on CISC and adherence to this technique have been published. No studies have yet explored the points of view of professional c...
journal_title:International neurourology journal
pub_type: 杂志文章
doi:10.5213/inj.1734824.412
更新日期:2017-09-01 00:00:00
abstract::Bladder cancer is one of the most common cancers worldwide, with a high rate of recurrence and poor outcomes as a result of relapse. Bladder cancer patients require lifelong invasive monitoring and treatment, making bladder cancer one of the most expensive malignancies. Lines of evidence increasingly point to distinct...
journal_title:International neurourology journal
pub_type: 杂志文章,评审
doi:10.5213/inj.1632752.376
更新日期:2016-11-01 00:00:00
abstract:PURPOSE:We aimed to assess whether nerve-sparing radical prostatectomy (nsRP) is associated with improved recovery of urinary continence compared to non-nerve-sparing radical prostatectomy (nnsRP) in patients with localized prostate cancer and preoperative erectile dysfunction. METHODS:A total of 360 patients with org...
journal_title:International neurourology journal
pub_type: 杂志文章
doi:10.5213/inj.1630428.214
更新日期:2016-03-01 00:00:00
abstract:PURPOSE:The neurological molecular mechanisms underlying the voiding dysfunction associated with nonbacterial chronic prostatitis/chronic pelvic pain syndrome remain poorly understood. In this study, we assessed whether prostate inflammation activated bladder afferent neurons, leading to bladder dysfunction, and sought...
journal_title:International neurourology journal
pub_type: 杂志文章
doi:10.5213/inj.1836124.062
更新日期:2018-06-01 00:00:00