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A systematic review of animal and clinical studies on the use of scaffolds for urethral repair

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Summary

Replacing urethral tissue with functional scaffolds has been one of the challenging problems in the field of urethra reconstruction or repair over the last several decades. Various scaffold materials have been used in animal studies, but clinical studies on use of scaffolds for urethral repair are scarce. The aim of this study was to review recent animal and clinical studies on the use of different scaffolds for urethral repair, and to evaluate these scaffolds based on the evidence from these studies. PubMed and OVID databases were searched to identify relevant studies, in conjunction with further manual search. Studies that met the inclusion criteria were systematically evaluated. Of 555 identified studies, 38 were included for analysis. It was found that in both animal and clinical studies, scaffolds seeded with cells were used for repair of large segmental defects of the urethra, such as in tubular urethroplasty. When the defect area was small, cell-free scaffolds were more likely to be applied. A lot of pre-clinical and limited clinical evidence showed that natural or artificial materials could be used as scaffolds for urethral repair. Urinary tissue engineering is still in the immature stage, and the safety, efficacy, cost-effectiveness of the scaffolds are needed for further study.

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Authors and Affiliations

  1. Department of Medical Genetics, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China

    Na Qi  (祁 娜), Wen-jiao Li  (李文娇) & Hong Tian  (田 虹)

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  1. Na Qi  (祁 娜)
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  2. Wen-jiao Li  (李文娇)
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  3. Hong Tian  (田 虹)
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Correspondence to Hong Tian  (田 虹).

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Qi, N., Li, Wj. & Tian, H. A systematic review of animal and clinical studies on the use of scaffolds for urethral repair. J. Huazhong Univ. Sci. Technol. [Med. Sci.] 36, 111–117 (2016). https://doi.org/10.1007/s11596-016-1551-5

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  • DOI: https://doi.org/10.1007/s11596-016-1551-5

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