Effects of different subcutaneous sites on heterotopic autotransplantation of canine ovarian tissue

Autor: Fabiana AS Brandão, Danielle CC de Brito, Leda MC Pereira, Kele A Alves, Lucy VS Ñaupas, Samara S de Souza, Duanny M de S Cunha, Reginaldo P de S Filho, Benner G Alves, Ana PR Rodrigues, Dárcio IA Teixeira
Rok vydání: 2023
Předmět:
DOI: 10.21203/rs.3.rs-2564726/v1
Popis: Ovarian tissue transplantation makes it possible to restore fertility; however, the success of this technique depends on the transplant region used. Therefore, this study aimed to evaluate the effect of two subcutaneous regions on canine ovarian transplantation, pinna (Pi) and neck (Ne), for 7 and 15 days. Ovaries collected by ovariosalpingohysterectomy were fragmented using a punch device. Fresh fragments were fixed, and the others were immediately grafted onto the animal itself in the Pi and Ne regions for 7 and 15 days. Recovered fragments were evaluated for histology (morphology, development and stromal density), picrosirius (collagen fibers), and immunohistochemistry (fibrosis and cell proliferation). The results showed that follicular normality rates were lower in Pi-7 (78%) vs. control (90%) and Pi-15 (86%), similar in Ne-7 (92%) and superior in Ne-15 (97%) compared to the control, with the effect of the region Ne (94%) superior (P vs. control but was similar within 15 days. Fragments from both regions showed higher fibronectin labeling and deposition of type I and lower type III collagen fibers (P vs. control. Proliferation rates in Ne-7 were higher (P
Databáze: OpenAIRE
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