RESUMENObjetivo. Evaluar el efecto in vitro del ácido linoléico sobre la producción de PGF 2 α y PGE 2 en células endometriales epiteliales bovinas (CEEP). Materiales y métodos. Se cultivaron CEEP aisladas de tejido uterino y se suplementaron con AL a diferentes concentraciones (1 μM, 10 μM, 100 μM), oxitocina (OT) (0.1 μM) e interferón trofoectodérmico bovino (bINT-τ) (50 ng/ml). Se cuantificó la PGF 2 α y PGE 2 a distintos tiempos (12, 24 y 36h). En el control, la PGF 2 α en el sobrenadante aumentó en el tiempo de cultivo y fue 1.2 veces mayor que la producción de PGE 2 . Resultados. El ácido linoléico disminuyó la concentración de PGF 2 α (p<0.05) en el sobrenadante, y no afectó (p>0.05) la producción de PGE 2 . El efecto conjunto de AL y OT sobre la producción de PGF 2 α difirió para cada uno de los tiempos; el ácido linoléico inhibió parcialmente el efecto estimulante de la OT sobre la producción de PGE 2 , el efecto conjunto del AL y el bINT-τ aumentó (p<0.05) esta inhibición hasta la hora 24. Conclusiones. El ácido linoléico afecta negativamente la concentración de PGF 2 α en el sobrenadante a través del tiempo. Respecto a la PGE 2 se concluye que el ácido linoléico por sí solo no afecta la concentración en el sobrenadante.Palabras clave: Endometrio, interferones, luteólisis, maternal, oxitocina (Fuente: MeSH) ABSTRACT Objective: Evaluate the in vitro effect of AL on the production of PGF 2 a and PGE 2 in bovine epithelial endometrial cells (CEEP). Materials and methods. Isolated CEEP were cultured and supplemented with AL at different concentrations (1μM, 10μM, 100μM), oxytocin (OT) (0.1 μM) and bovine interferon (BINT-τ) (50 ng / ml). PGF 2 a and PGE 2 were quantified as response variables at different times. In the control, the concentration of PGF 2 a in the supernatant increased over time and was 1.2 times greater than the production of PGE 2 . Results. AL reduced the concentration of PGF 2 a (p <0.05) in the supernatant, and did not affect (p> 0.05) the production of PGE 2 . The combined effect of LA and OT in the production of PGF 2 a is different in time, LA partially inhibited the stimulatory effect of OT in the production of PGE 2 , the joint effect of LA and BINT-τ increased (p<0.05) when this inhibition at 24h. Conclusions. LA alone negatively affects the concentration in the supernatant of PGE 2 in time. Regarding PGE 2 , LA alone does not affect the concentration in the supernatant.
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