Placental membrane grafts for urethral replacement in a rabbit model: a pilot study
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Several graft materials are available for use in the treatment of urethral stricture disease. Placental membrane is being used in a variety of settings as a graft in wound healing and tissue repair. We aim to evaluate the effect of implanting decellularized human placental membrane into rabbit urethras.
Dorsal onlay graft urethroplasty using prepared human placental membrane was performed in 10 New Zealand White rabbits (Oryctolagus cuniculus). After 3 months, the rabbits underwent cystourethroscopy to evaluate urethral patency. The rabbits were then euthanized and the urethras examined for pathological findings.
All urethroplasties were performed without complication. There were no observed episodes of urinary retention, infection, or renal failure. Urethral patency was achieved in all rabbits 3 months postoperatively. Urothelial replacement of the placental membrane graft was observed in all rabbits without malignant transformation.
Dorsal onlay urethroplasty using decellularized human placental membrane can safely be performed in a rabbit model. This pilot study demonstrated urothelial replacement of human placental membrane in the rabbit urethra without stricture formation. Placental membrane is a promising biomaterial for urethral reconstruction.
KeywordsUrethroplasty Placental membrane Grafts
CRP: protocol/project development, data collection or management, data analysis, and manuscript writing/editing. ADD: protocol/project development, data collection or management, data analysis, and manuscript writing/editing. SG: data collection or management, data analysis, and manuscript writing/editing. KM: protocol/project development. XQ: protocol/project development and manuscript writing/editing. BO: protocol/project development. JMK: protocol/project development and manuscript writing/editing. ADM: data collection or management and manuscript writing/editing. JMZ: protocol/project development, data collection or management, data analysis, and manuscript writing/editing.
Institutional. Prepared placental membranes provided by LifeNet Health® (Virginia Beach, VA).
Compliance with ethical standards
Conflict of interest
The views expressed in this manuscript are those of the authors and do not reflect the official policy or position of the Department of the Navy, Department of Defense, or the United States Government. Xiaofei Qin, Britini Ork, Joseph M. Khoury are employees of LifeNet Health® (Virginia Beach, VA). The remaining authors declare that they have no relevant financial interests. This abstract was presented as a podium presentation at AUA 2018.
- 4.National Research Council (2011) Guide for the care and use of laboratory animals: eighth edition. The National Academies Press, Washington, DCGoogle Scholar
- 5.Burd A, Huang L (2011) Regenerative medicine using pregnancy-specific biological substances. Springer, BerlinGoogle Scholar
- 7.Barski D, Gerullis H, Ecke T et al (2015) Repair of a vesico-vaginal fistula with amniotic membrane—step 1 of the IDEAL recommendations of surgical innovation. Cent Eur J Urol 68:459–461Google Scholar
- 9.Patel VR, Samavedi S, Bates AS et al (2015) Dehydrated human amnion/chorion membrane allograft nerve wrap around the prostatic neurovascular bundle accelerates early return to continence and potency following robot-assisted radical prostatectomy: propensity score-matched analysis. Eur Urol 67:977–980CrossRefGoogle Scholar
- 23.Loke YM (2013) Life’s Vital Link: the astonishing role of the placenta. Oxford University Press, OxfordGoogle Scholar
- 24.Jordens C, O’Connor M, Kerridge I et al (2012) Religious perspectives on umbilical cord blood banking. J Law Med 19(3):497–511Google Scholar