Abstract

Transgenic rabbits are excellent animal models for human diseases and suitable bioreactors for the production of recombinant proteins on an experimental and commercial scale. The aim of this study was to compare the structure of the mWAP-hFVIII transgenic and non-transgenic rabbit ovarian and testicular tissue. Ovarian and testicular tissue samples were taken from transgenic and non-transgenic New Zealand White rabbits, examined by optical microscopy and analyzed morphometrically. An increase of the relative volume of primary follicles and a decrease of the relative volume of antral follicles was detected in the transgenic ovarian structure (P < 0.05), but other developmental follicular stages and follicular diameters were not affected (P > 0.05). In the testes a significant decrease (P < 0.05) of the epithelial height was detected in the transgenic testicular structure, but the relative volume of all basic structures (germinal epithelium, interstitium and lumen) was unaltered (P > 0.05). Generally, this study demonstrates a weak negative effect of mWAP-hFVIII transgenesis on rabbit gonadal structure.

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