No abstract available.
Humans ; Urinary Bladder, Neurogenic* ; Urodynamics*

No abstract available.
Needles* ; Prostatitis*

PURPOSE: We performed this study to elucidate whether patient`s satisfaction and improvement of clinical parameters after transurethral resection of prostate(TURP) correlate with the degree of preoperative obstruction. We investigated the role of urodynamic studies as a predictor of outcome after TURP. MATERIALS AND METHODS: Parameters including pre-operative symptom scores(IPSS), uroflow rate, prostate volume and urodynamic studies, were assessed in 27 patients undergoing TURP due to BPH. Bladder outlet obstruction was assessed by pressure-flow study(PFS). Post-operative evaluation was performed with IPSS and uroflowmetry 3 months after surgery. Post-operative patient`s satisfaction was determined by subjective responses to the questionnaires. The subjective responses, clinical and urodynamic parameters were compared and statistically analyzed. RESULTS: Eighteen patients(67%) had preoperative bladder outlet obstruction(BOO; defined as L-PURR> or =3), while 14(52%) demonstrated associated detrusor instability(DI). Significant improvements in IPSS, quality of life, peak flow rate and residual urine were noted in all patients post-operatively(p<0.05). Significant improvements in voiding symptom scores were demonstrated in patients with good results(p<0.05). Good results(16 patients) were more frequently noted in the patients with BOO than those without BOO. 60% of the patients who showed only DI had poor results. The positive predictive value for the good and poor results were 76.9%(L-PURR> or =3) and 91%(L-PURR<3). CONCLUSIONS: No differences in the improvements of clinical parameters except voiding symptom scores were noted between obstructive and non-obstructive BPH. However, patient`s satisfaction after surgery was higher for patients in whom preoperative pressure-flow study confirmed obstruction. Also, obstructive parameters such as L-PURR or URA may be useful in predicting postoperative results.
Humans ; Prostate ; Quality of Life ; Surveys and Questionnaires ; Transurethral Resection of Prostate* ; Urinary Bladder ; Urinary Bladder Neck Obstruction ; Urodynamics

BACKGROUND: To explore an interaction(s) of endothelin with other blood pressure regulating systems, effects of either a high concentration of sodium chloride vehicle or pretreatment with atrial natriuretic peptide (ANP) on the pressor response to endothelin were investigated in rats. METHOD: Sprague-Dawley rats were anesthetized with thiopental (50mg/kg, IP) and were cannulated into left lateral cerebral ventricle. The left femoral artery and vein were also catheterized to measure blood pressure and to serve as an infusion route, respectively. Endothelin (10pmol) dissolved in either normal (0.15M) or high concentration (3.0M) of NaCl vehicle with ANP (1 nmol, ICV). For intravenous (IV) infusion, endothelin(1pmol/min) dissolved either in normal or high concentration of NaCl vehicle was infused for 20min. RESULT: ICV endothelin caused an increase of arterial pressure, in which the NaCl did not affect but ANP-pretreatment significantly attenuated the pressor magnitude. IV endothelin also increased the arterial pressure, which was potentiated by NaCl, ie, the maximum increase caused by the IV endothelin in the high NaCl vehicle was greater than the sum of that induced by endothelin (infused in normal NaCl vehicle) and that induced by high NaCl vehicle only. CONCLUSION: These results suggest that endothelin has separate central and peripheral pressor actions, in which the former is not affected by high NaCl but is attenuated by the ANP system and the latter is potentiated by high NaCl.
Animals ; Arterial Pressure ; Atrial Natriuretic Factor ; Blood Pressure ; Catheters ; Cerebral Ventricles ; Endothelins* ; Femoral Artery ; Rats* ; Rats, Sprague-Dawley ; Sodium Chloride* ; Sodium* ; Thiopental ; Veins

Parkinson's disease (PD) and multiple system atrophy (MSA) are neurodegenerative diseases representative of alpha-synucleinopathies characterized pathologically by alpha-synuclein-abundant Lewy bodies and glial cytoplasmic inclusions, respectively. Embryonic stem cells, fetal mesencephalic neurons, and neural stem cells have been introduced as restorative strategies in PD animals and patients, but ethical and immunological problems as well as the serious side effects of tumorigenesis and disabling dyskinesia have limited clinical application of these stem cells. Meanwhile, cell therapy using mesenchymal stem cells (MSCs) is attractive clinically because these cells are free from ethical and immunological problems. MSCs are present in adult bone marrow and represent <0.01% of all nucleated bone marrow cells. MSCs are themselves capable of multipotency, differentiating under appropriate conditions into chondrocytes, skeletal myocytes, and neurons. According to recent studies, the neuroprotective effect of MSCs is mediated by their ability to produce various trophic factors that contribute to functional recovery, neuronal cell survival, and stimulation of endogenous regeneration and by immunoregulatory properties that not only inhibit nearly all cells participating in the immune response cell-cell-contact-dependent mechanism, but also release various soluble factors associated with immunosuppressive activity. However, the use of MSCs as neuroprotectives in PD and MSA has seldom been studied. Here we comprehensively review recent advances in the therapeutic roles of MSCs in PD and MSA, especially focusing on their neuroprotective properties and use in disease-modifying therapeutic strategies.
Adult ; Animals ; Bone Marrow ; Bone Marrow Cells ; Cell Survival ; Cell Transformation, Neoplastic ; Chondrocytes ; Dyskinesias ; Embryonic Stem Cells ; Humans ; Inclusion Bodies ; Lewy Bodies ; Mesenchymal Stromal Cells ; Multiple System Atrophy ; Muscle Fibers, Skeletal ; Neural Stem Cells ; Neurodegenerative Diseases ; Neurons ; Neuroprotective Agents ; Parkinson Disease ; Regeneration ; Stem Cells ; Tissue Therapy

No abstract available.

The concept of cognitive reserve (CR) in Alzheimer’s disease (AD) explains the differences between individuals in their susceptibility to AD-related pathologies. An enhanced CR may lead to less cognitive deficits despite severe pathological lesions. Parkinson’s disease (PD) is also a common neurodegenerative disease and is mainly characterized by motor dysfunction related to striatal dopaminergic depletion. The degree of motor deficits in PD is closely correlated to the degree of dopamine depletion; however, significant individual variations still exist. Therefore, we hypothesized that the presence of motor reserve (MR) in PD explains the individual differences in motor deficits despite similar levels of striatal dopamine depletion. Since 2015, we have performed a series of studies investigating MR in de novo patients with PD using the data of initial clinical presentation and dopamine transporter PET scan. In this review, we summarized the results of these published studies. In particular, some premorbid experiences (i.e., physical activity and education) and modifiable factors (i.e., body mass index and white matter hyperintensity on brain image studies) could modulate an individual’s capacity to tolerate PD pathology, which can be maintained throughout disease progression.

Purpose: This study was performed to identify the effects of the alpha1A adrenoceptor antagonist on the urethral perfusion pressure (UPP), and also to assess its therapeutic potentials for female bladder outlet obstruction (BOO). Materials and Methods: A cannula was placed in the femoral artery for drug administration and systemic blood pressure monitoring in each female rat. The UPP and vesical pressure (Pves) were monitored using a triple-lumen catheter. Tamsulosin (group I), doxazosin (group II) and phentolamin (group III) were injected into female rats via the femoral cannula. Tamsulosin was also injected to male rats (group IV) for comparison with Group I. Results: After administration of tamsulosin in group I, the frequency was significantly decreased and the duration of minimal urethral relaxation with high frequency oscillations (Dhfo) was significantly prolonged. None of the parameters were significantly different compared with groups II and III, with the exception of the mean arterial blood pressure (MAP). The changes of MAP after tamsulosin were significantly lower than those after doxazosin and phentolamin. In the male rats (group IV), prior to the administration of tamsulosin, the UPP and Pves curves were similar to those of the female rats, but the maximal Pves was significantly higher than in group I. After the administration of tamsulosin to group IV, the prolongation of the frequency and Dhfo were significant. Conclusions: In the female rat urethra, the alpha1A adrenergic receptor may be a functional subtype. The alpha1A adrenoceptor antagonist was found to prolong the Dhfo and decrease the frequency of involuntary bladder contraction. It might be possible that the alpha1A adrenoceptor antagonist improves not only the obstructive symptoms, but the bladder irritative symptoms also, by prolonging the Dhfo and frequency of an involuntary bladder contraction.
Adrenergic alpha-Antagonists ; Animals ; Arterial Pressure ; Blood Pressure Monitors ; Catheters ; Doxazosin ; Female* ; Femoral Artery ; Humans ; Male ; Perfusion* ; Rats* ; Receptors, Adrenergic ; Relaxation ; Urethra ; Urinary Bladder ; Urinary Bladder Neck Obstruction

Most silica-contaminated wounds of the skin heal without complications. Cutaneous silica granuloma is a poorly understood, uncommon condition resembling a sarcoidosis. We report a case of silica granuloma after intermittent intramuscular injections. A 70-year-old man presented a painless mass in his right buttock for 2 weeks. He had received intermittent intramuscular injections of antihistamine drugs due to chronic dermatitis for 30 years. The histolopathological findings showed numerous hyalinized collagenous nodules with concentric layers, and an ill-defined chronic granulomatous inflammation containing foreign material. A polarized light microscopic examination revealed birefrigent particles. The presence of silica components was confirmed by scanning electron microscopy and energy dispersive X-ray microanalysis.
Aged ; Buttocks ; Collagen ; Dermatitis ; Electron Probe Microanalysis ; Granuloma* ; Humans ; Hyalin ; Inflammation ; Injections, Intramuscular* ; Microscopy, Electron, Scanning ; Sarcoidosis ; Silicon Dioxide* ; Skin ; Wounds and Injuries

Multiple-system atrophy (MSA) is an adult-onset, sporadic, progressive neurodegenerative disease. Clinically, the cardinal features include autonomic failure, parkinsonism, cerebellar ataxia, and pyramidal signs in any combination, of which autonomic failure is an integral component in the diagnosis. Pathologically, MSA is characterized by alpha-synuclein-positive glial cytoplasmic inclusions and neuronal loss, predominantly in the basal ganglia, brainstem, cerebellum, and intermediolateral cell columns of the spinal cord. We report the first case of MSA confirmed by autopsy in Korea.
Atrophy ; Autopsy ; Basal Ganglia ; Brain Stem ; Cerebellar Ataxia ; Cerebellum ; Inclusion Bodies ; Korea ; Multiple System Atrophy ; Neurodegenerative Diseases ; Neurons ; Parkinsonian Disorders ; Spinal Cord