The presence of estradiol benzoate in the cervical relaxation treatment for non-surgical embryo collection does not impair embryonic morphological quality, cryosurvival, and gene expression profile.

Autor: Batista RITP; Universidade Federal Fluminense, Rua Vital Brazil Filho, 64, 24230-340, Niterói, RJ, Brazil. Electronic address: ribrio@yahoo.com.br., Dias JH; Universidade Federal de Viçosa, Av. Peter Henry Rolfs, s/n, 36570-000, Viçosa, MG, Brazil., Gonçalves JD; Faculdade de Ciências Agrárias e Veterinárias, Universidade Estadual Paulista, Via de acesso Prof. Paulo Donato Castellane, s/n, 14884-900, Jaboticabal, SP, Brazil., Vergani GB; Faculdade de Ciências Agrárias e Veterinárias, Universidade Estadual Paulista, Via de acesso Prof. Paulo Donato Castellane, s/n, 14884-900, Jaboticabal, SP, Brazil., Oliveira MEF; Faculdade de Ciências Agrárias e Veterinárias, Universidade Estadual Paulista, Via de acesso Prof. Paulo Donato Castellane, s/n, 14884-900, Jaboticabal, SP, Brazil., Souza-Fabjan JMG; Universidade Federal Fluminense, Rua Vital Brazil Filho, 64, 24230-340, Niterói, RJ, Brazil., Fonseca JF; Embrapa Caprinos e Ovinos, Núcleo Regional Sudeste, Rodovia MG 133, Km 42, CEP 36155 - 000, Coronel Pacheco, MG, Brazil.
Jazyk: angličtina
Zdroj: Theriogenology [Theriogenology] 2024 Apr 01; Vol. 218, pp. 208-213. Date of Electronic Publication: 2024 Feb 04.
DOI: 10.1016/j.theriogenology.2024.01.038
Abstrakt: Non-surgical embryo recovery (NSER) is usually preceded by a cervical relaxation in ovine donors, based on estradiol benzoate (EB), prostaglandin (PGF), and oxytocin (OT). However, it is hypothesized that, due to poorly understood mechanisms, EB can result in embryotoxic actions. To evaluate this, 20 min before NSER superovulated sheep were induced to cervical relaxation with 0.0 (G0.0), 0.5 (G0.5), or 1.0 mg (G1.0) of EB associated with 37.5 μg of PGF 16 h before NSER and 50 IU of OT. In doing so, the efficiency and duration of the NSER procedure showed no compromise (P > 0.05). Additionally, the presence of EB did not affect (P > 0.05) the embryo's morphological quality, the development dynamics, or the abundance of transcripts associated with embryonic quality (OCT4 and NANOG), cellular stress (HSP90 and PRDX1), and apoptosis (BCL2 and BAX). A similar result (P > 0.05) was also observed when comparing embryonic cryosurvival at 24 (52.0, 52.0, and 54.0) and 48 h (60.0, 54.0, and 58.0) of in vitro culture (G0.0, G0.5, and G1.0, respectively). Thus, we can conclude that EB use does not compromise embryonic quality and cryoresistance.
(Copyright © 2024 Elsevier Inc. All rights reserved.)
Databáze: MEDLINE
Externí odkaz: