Criopreserved ovarian tissue transplantation and bone restoration metabolism in castrated rats.

Autor:	Silva LHFME; Federal University of Ceará, Fortaleza, CE, Brazil., Silva JMME; Federal University of Ceará, Fortaleza, CE, Brazil., Salama M; Cologne University, Cologne, Germany., Pinheiro LGP; Maternity School Assis Chateaubriand, Fortaleza, CE, Brazil., Lunardi FO; State University of Ceará, Fortaleza, CE, Brazil., Silva PGBD; Federal University of Ceará, Fortaleza, CE, Brazil., Hirth CG; Federal University of Ceará, Fortaleza, CE, Brazil., Lucena IF; School of Medicine Unichristus, Fortaleza, CE, Brazil., Gomes GJDC; Hospital São Carlos, Fortaleza, CE, Brazil., Leite JAD; Federal University of Ceará, Fortaleza, CE, Brazil.
Jazyk:	Portuguese; English
Zdroj:	Revista do Colegio Brasileiro de Cirurgioes [Rev Col Bras Cir] 2018; Vol. 45 (1), pp. e1577. Date of Electronic Publication: 2018 Feb 15.
DOI:	10.1590/0100-6991e-20181577
Abstrakt:	Objectives: to evaluate estradiol levels and autotransplantation heated ovarian tissue effects, after vitrification, on rats bone metabolism previously oophorectomized bilaterally. Methods: experimental study with 27 rats aged 11 to 12 weeks and weighing 200g to 300g, submitted to bilateral oophorectomy and ovarian tissue cryopreservation for subsequent reimplantation. Animals were divided into two groups, A and B, with 8 and 19 rats, respectively. Autotransplantation occurred in two periods according to castration time: after one week, in group A, and after one month in group B. Serum estradiol measurements and ovary and tibia histological analysis were performed before and after oophorectomy period (early or late) and one month after reimplantation. Results: in groups A and B, tibia median cortical thickness was 0.463±0.14mm (mean±SD) at the baseline, 0.360±0.14mm after oophorectomy and 0.445±0.17mm one month after reimplantation p<0.005). Trabecular means were 0.050±0.08mm (mean±SD) at baseline, 0.022±0.08mm after oophorectomy and 0.049±0.032mm one month after replantation (p<0.005). There was no statistical difference in estradiol variation between the two study groups (p=0.819). Conclusion: cryopreserved ovarian tissue transplantation restored bone parameters, and these results suggest that ovarian reimplantation in women may have the same beneficial effects on bone metabolism.
Databáze:	MEDLINE
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