Abstract
The efficacy of cell therapy in patients with stress urinary incontinence (SUI) is lower than expected. The aim of this study was to determine the injection accuracy rate both with transurethral and periurethral route. Autologous intraurethral cell transplantation was performed in female goats. The cells were injected either periurethrally (PERI group, two depots/animal, n = 8) or transurethrally (TRANS group, eight depots/animal, n = 11). Transurethral injections were performed under endoscopic guidance. The number and distribution of cell depots in urethras were analyzed in the three-step protocol: 1) screening of whole explants by in vivo imaging system; 2) systematic microscopic analysis of raw 10 μm cross-sections; 3) immunohistochemistry. As control, four urethras collected 1 day after transurethral transplantation were used. Episodes of cell suspension leakages after needle withdrawal were noted. In all experimental animals depots were identified in the urethral wall 28 days after transplantation. The mean percentage of depots located in the urethral wall in relation to all performed injections amounted to 68.7% and 67.0% for PERI and TRANS groups, respectively. The mean proportions of depots which were identified in ext...Continue Reading
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Dec 25, 2019·Neurourology and Urodynamics·Luise JägerWilhelm K Aicher
Sep 19, 2020·Cell & Bioscience·Yizhen Sima, Yisong Chen
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