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- Periurethral muscle-derived mononuclear cell injection improves urethral sphincter restoration in rats(2017) TURCO, Marcelo Pitelli; SOUZA, Alex Balduino de; SOUSA, Isida de Campos; FRATINI, Paula; VERAS, Mariana Matera; RODRIGUES, Marcio Nogueira; BESSA JR., Jose de; BROLIO, Marina Pandolphi; LEITE, Katia Ramos Moreira; BRUSCHINI, Homero; SROUGI, Miguel; MIGLINO, Maria Angelica; GOMES, Cristiano MendesAimsInvestigate the effect of a novel cell-based therapy with skeletal muscle-derived mononuclear cells (SMDMCs) in a rat model of stress urinary incontinence. MethodsMale Wistar-Kyoto rats' hind limb muscles were enzymatically dissociated, and SMDMCs were isolated without needing expansion. The cell population was characterized. Twenty female rats underwent urethrolysis. One week later, 10 rats received periurethral injection of 10(6) cells (SMDMC group), and 10 rats received saline injections (Saline group). Ten rats underwent sham surgery (Sham group). Four weeks after injection, animals were euthanized and the urethra was removed. The incorporation of SMDMCs in the female urethra was evaluated with fluorescence in situ hybridization for the detection of Y-chromosomes. Hematoxylin and eosin, Masson's trichrome staining, and immunohistochemistry for actin and myosin were performed. The muscle/connective tissue, actin and myosin ratios were calculated. Morphological evaluation of the urethral diameters and fractional areas of the lumen, mucosa, and muscular layer was performed. ResultsSMDMCs population was consistent with the presence of muscle cells, muscle satellite cells, perivascular cells, muscle progenitor cells, and endothelial cells. SMDMCs were incorporated into the urethra. A significant decrease in the muscle/connective tissue ratio was observed in the Saline group compared with the SMDMC and Sham groups. The proportions of actin and myosin were significantly decreased in the Saline group. No differences were observed in the morphometric parameters. ConclusionsSDMSC were incorporated into the rat urethra and promoted histological recovery of the damaged urethral sphincter, resulting in decreased connective tissue deposition and increased muscle content.
- The creation and validation of a short form of the Neurogenic Bladder Symptom Score(2020) WELK, Blayne; LENHERR, Sara; ELLIOTT, Sean; STOFFEL, John; GOMES, Cristiano M.; BESSA, Jose de; CINTRA, Lisley K. L.; MYERS, Jeremy B.Aim To develop a short form (SF) of the 24-item Neurogenic Bladder Symptom Score (NBSS). Methods We used three previously published datasets. First, we selected the most responsive questions within each of the domains. Internal validity of the NBSS-SF was assessed using Cronbach's alpha. External validity was assessed by evaluating hypothesized relationships with other questionnaires and testing correlations with the full NBSS domains. Test-retest reliability of the NBSS-SF domains was determined using an intraclass coefficient (ICC). Results Using data from a prior responsiveness study, we selected questions for the NBSS-SF from the incontinence domain (three), storage/voiding domain (three), consequences domain (two); these would make up the NBSS-SF. We used the original NBSS validation cohort of 230 patients with multiple sclerosis (MS), spinal cord injury (SCI), or spina bifida, and found the Cronbach's alpha was .76 for the NBSS-SF; the external validity was high, with correlations between specific NBSS-SF domains/total scores and the Qualiveen-SF, ICIQ, and AUASS generally similar to those seen with the NBSS. Correlations between the NBSS-SF domains and the full NBSS domains were high. The NBSS-SF ICC in a subset of 120 patients was 0.84. The NBSS-SF performed similarly in two additional independent datasets. Conclusions The total score of the NBSS-SF has appropriate validity, reliability, and could be used instead of the full NBSS to minimize the assessment burden. The full NBSS may be better suited if the primary focus of the study is on neurogenic bladder symptoms, or if individual NBSS domains are of interest.
- Voiding Dysfunction in Patients With Neuromyelitis Optica Spectrum Disorders(2016) CARVALHO, Fabricio Leite de; GOMES, Cristiano Mendes; APOSTOLOS-PEREIRA, Samira L.; BESSA JR., Jose; PINHEIRO, Marcello; MARCHIORI, Paulo E.; BRUSCHINI, Homero; SROUGI, Miguel; CALLEGARO, DagobertoAims: We assessed the lower urinary tract symptoms (LUTS) and urodynamic findings in patients with neuromyelitis optica spectrum disorders (NMO-SD), a recently defined neurological disease. Methods: We prospectively evaluated seven men and 23 women (mean age 41.1 +/- 13.5 years) with an established diagnosis of NMO-SD who were invited to participate irrespective of the presence of LUTS. Neurological evaluation was assessed with the Expanded Disability Status Scale (EDSS) and LUTS were evaluated with the Overactive Bladder questionnaire (OAB-V8) and the International Prostate Symptom Score (I-PSS). All patients underwent videourodynamics, transabdominal urinary tract sonography, urine culture, and serum creatinine levels. Results: The mean time of disease duration was 33.8 +/- 30.8 months. Neurological evaluation showed a mean EDSS score of 5.3 +/- 1.8. The most frequent videourodynamic findings were detrusor-sphincter dyssynergia (DSD) and detrusor overactivity (DO) in 11 (36.6%) patients, DSD without DO in seven (23.3%) and DO without DSD in six (20.0%) patients. Voiding dysfunction assessed by I-PSS and OAB-V8 increased with the degree of neurological impairment (P = 0.018; r = 0.42 and P = 0.006; r = 0.48 respectively). Patients with DSD had higher I-PSS (18.5 +/- 11.4 vs 7.0 +/- 9.2; P = 0.029) and OAB-V8 scores (22.8 +/- 15.8vs 9.1 +/- 7.8; P = 0.008), and worse neurological impairment (mean EDSS 5.9 +/- 1.8 vs 4.5 +/- 1.5; P = 0.027). Conclusions: Most patients with NMO-SD have LUTS and voiding dysfunction, with DSD and DO as the main urodynamic findings. The severity of the neurological disease is a predictive factor for the occurrence of voiding dysfunction and detrusor-sphincter dyssynergia. (C) 2014 Wiley Periodicals, Inc.
conferenceObject PERIURETHRAL MUSCLE-DERIVED MONONUCLEAR CELL INJECTION IMPROVES MORPHOLOGICAL RECOVERY OF THE URETHRAL SPHINCTER IN A RAT MODEL OF URINARY INCONTINENCE(2015) TURCO, Marcelo; GOMES, Cristiano; BESSA, Jose; BROLIO, Marina; RODRIGUES, Marcio; SOUZA, Alex; LEITE, Katia; NUNES, Ricardo; BRUSCHINI, Homero; MIGLINO, Maria Angelica; SROUGI, Miguel