Animal Reproduction (AR)
https://animal-reproduction.org/article/doi/10.1590/1984-3143-AR2022-0091
Animal Reproduction (AR)
ORIGINAL ARTICLE

Galea spixii embryos have potential to produce steroid hormones

Franceliusa Delys de Oliveira; Paulo Ramos da Silva Santos; Moacir Franco de Oliveira; Antônio Chaves de Assis Neto

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Abstract

Estrogens and progestogens are hormones produced by maternal organs and it is required for recognition and maintenance of pregnancy. In addition, the embryo may also be a source. For this, the aim was to identify steroidogenic expression on Galea spixii embryos early in the embryonic period. Embryos were collected on Days 10 and 15 of gestation; some were fixed in 4% paraformaldehyde for morphological and immunohistochemical analysis (P450arom), whereas others had RNA extracted to determine presence of CYP19a1 gene. In addition, for immunochemistry, maternal ovaries were collected as positive control tissues. Maternal tissues had positive staining for aromatase, whereas none of the embryos stained for P450 aromatase. Based on qPCR reactions, CYP19a1 gene were expressed in all embryos. Galea spixii embryos expressed steroidogenic genes during the post-implantation period, indicating they have the potential to produce steroid hormones.

Keywords

aromatase, cytochrome P450, concepty, gestation, Spix yellow-toothed cavy

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Submitted date:
09/26/2022

Accepted date:
12/09/2022

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