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Text
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URL Address
<a href="http://doi.org/10.1152/ajprenal.00510.2014" target="_blank" rel="noreferrer noopener">http://doi.org/10.1152/ajprenal.00510.2014</a>
Pages
F92–F100
Issue
2
Volume
308
Dublin Core
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Title
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Mesenchymal stem cells and their secretome partially restore nerve and urethral function in a dual muscle and nerve injury stress urinary incontinence model.
Publisher
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American journal of physiology. Renal physiology
Date
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2015
2015-01
Subject
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*Mesenchymal Stem Cell Transplantation; Animals; Conditioned; Culture Media; elastin; external urethral sphincter; Female; Injections; Intraperitoneal; Intravenous; Mesenchymal Stem Cells/metabolism; paracrine action; Parturition; pudendal nerve; Pudendal Nerve/injuries/*physiology; Rats; Sprague-Dawley; Stress/etiology/*prevention & control; Urethra/injuries/*physiology; urinary incontinence; Urinary Incontinence
Creator
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Deng Kangli; Lin Dan Li; Hanzlicek Brett; Balog Brian; Penn Marc S; Kiedrowski Matthew J; Hu Zhiquan; Ye Zhangqun; Zhu Hui; Damaser Margot S
Description
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Childbirth injures muscles and nerves responsible for urinary continence. Mesenchymal stem cells (MSCs) or their secretome given systemically could provide therapeutic benefit for this complex multisite injury. We investigated whether MSCs or their secretome, as collected from cell culture, facilitate recovery from simulated childbirth injury. Age-matched female Sprague-Dawley rats received pudendal nerve crush and vaginal distension (PNC+VD) and a single intravenous (iv) injection of 2 million MSCs or saline. Controls received sham injury and iv saline. Additional rats received PNC+VD and a single intraperitoneal (ip) injection of concentrated media conditioned by MSCs (CCM) or concentrated control media (CM). Controls received a sham injury and ip CM. Urethral and nerve function were assessed with leak point pressure (LPP) and pudendal nerve sensory branch potential (PNSBP) recordings 3 wk after injury. Urethral and pudendal nerve anatomy were assessed qualitatively by blinded investigators. Quantitative data were analyzed using one-way ANOVA and Holm-Sidak post hoc tests with P \textless 0.05 indicating significant differences. Both LPP and PNSBP were significantly decreased 3 wk after PNC+VD with saline or CM compared with sham-injured rats, but not with MSC or CCM. Elastic fiber density in the urethra increased and changed in orientation after PNC+VD, with a greater increase in elastic fibers with MSC or CCM. Pudendal nerve fascicles were less dense and irregularly shaped after PNC+VD and had reduced pathology with MSC or CCM. MSC and CCM provide similar protective effects after PNC+VD, suggesting that MSCs act via their secretions in this dual muscle and nerve injury.
Identifier
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<a href="http://doi.org/10.1152/ajprenal.00510.2014" target="_blank" rel="noreferrer noopener">10.1152/ajprenal.00510.2014</a>
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Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).
*Mesenchymal Stem Cell Transplantation
2015
American journal of physiology. Renal physiology
Animals
Balog Brian
Conditioned
Culture Media
Damaser Margot S
Deng Kangli
elastin
external urethral sphincter
Female
Hanzlicek Brett
Hu Zhiquan
Injections
Intraperitoneal
Intravenous
Kiedrowski Matthew J
Lin Dan Li
Mesenchymal Stem Cells/metabolism
paracrine action
Parturition
Penn Marc S
pudendal nerve
Pudendal Nerve/injuries/*physiology
Rats
Sprague-Dawley
Stress/etiology/*prevention & control
Urethra/injuries/*physiology
Urinary Incontinence
Ye Zhangqun
Zhu Hui