Increased ß-hydroxybutyrate (BHBA) concentration affect follicular growth in cattle.
Anim Reprod Sci
; 243: 107033, 2022 Aug.
Article
en En
| MEDLINE
| ID: mdl-35816934
Metabolic stress conditions caused by negative energy balance (NEB) have been associated with reduced fertility in cows. ß-hydroxybutyrate (BHBA) is the main circulating ketone body, which accumulates within follicular fluid. The aim of this study was to evaluate the effects of BHBA on follicle growth and on ovulatory mechanisms in cattle. At 72 h after intrafollicular injection, there was a decrease in follicular diameter in BHBA group compared to control (P = 0.02). Furthermore, follicle growth rate was reduced post-treatment with BHBA in comparison to the control group (P < 0.03). The BHBA intrafollicular injection in follicles ≥ 12 mm, however, did not affect E2 and P4 concentrations in the follicular fluid. In addition, the relative abundance of genes involved in the ovulatory cascade (ADAM 17, AREG, EREG, PTGS2), steroidogenesis (CYP19A1, 3BHSD, STAR), cellular stress (SOD1, CAT, GPX1, HSPA5, XBP1s, XBP1u, ATF4, ATF6), monocarboxylic acid transporters (SLC16A1, SLC16A7) and apoptosis (XIAP) was similar between groups. In conclusion, the results of this study indicate that the increase in intrafollicular concentrations of BHBA affects follicular growth, but it does not compromise the ovulatory cascade and cellular homeostasis in bovine granulosa cells.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Folículo Ovárico
/
Células de la Granulosa
Límite:
Animals
Idioma:
En
Revista:
Anim Reprod Sci
Año:
2022
Tipo del documento:
Article
País de afiliación:
Brasil
Pais de publicación:
Países Bajos