The constitution of functional model rabbit bladder with acellular matrix

Erçin Altıok 1, Engin Özbay 1 * , Oğuz Ekmekçioğlu 2
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1 Department of Urology, SBU Istanbul Kanuni Sultan Süleyman Research and Training Hospital, Istanbul, Turkey
2 Department of Urology, Medical Faculty, Erciyes Univercity, Kayseri, Turkey
* Corresponding Author
J CLIN MED KAZ, Volume 18, Issue 4, pp. 32-38. https://doi.org/10.23950/jcmk/11038
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ABSTRACT

Aim: In this study, for the useable of bladder acelluar matrix in urinary tissue engineering, we compared the urodynamic and histopathological results between normal, partial cystectomy and bladder acellular matrix allograft (BAMA) augmented cystoplasty groups in rabbit model.
Methods: There were five groups each consisting three rabbits. Urodynamic investigation was applied to all animals at the beging of the study. Then, in the first control group, the rabbits were sacrified and the bladders were removed for histopathological examination. In the second control group the same procedures were realized at the end of 24th week. In the third group, partial cystectomy was performed to the animals and followed for 24 weeks.  Partial cystectomy and BAMA augmented cystoplasty  were performed to the animals in the 4th and 5th groups. The animals were sacrified at the end of 12th and 24th weeks, respectively. In the 3th, 4th and 5th groups urodynamic investigations were performed before sacrification. Then bladders were underwent for histopathological examination.
Results: There was no significant difference in term of bladder capacity between both control and BAMA augmented groups. Detrusor presures were no statistical  different in all groups. However bladder capacity has significantly reduced in partial cystectomy group. In histopathological evaluations there were no differences between control and partial cystectomy groups. In BAMA augmented  groups urothelium and vascularization were nearly the same as control groups however muscle layer was less organized and was thinner than control groups.  Collagen depositon and innervation in BAMA augmented bladder were more prominent than that of the control group.
Conclusion:  In our animal study; although the detrusor muscle had less organized with more collagen deposition, the BAMA augmented bladders had near normal capacity and compliance with normal detrusor presures.

CITATION

Altıok E, Özbay E, Ekmekçioğlu O. The constitution of functional model rabbit bladder with acellular matrix. J CLIN MED KAZ. 2021;18(4):32-8. https://doi.org/10.23950/jcmk/11038

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