Resumo
La Organización Mundial de la Salud estima que el 40 % de mujeres en edad reproductiva tienen sobrepeso, que impacta en el aumento de embarazos con riesgo de morbilidad perinatal y enfermedades crónicas no trasmisibles. Los estudios asocian la obesidad con fragilidad emocional, lo que contribuye negativamente en la regulación de glucocorticoides; las experiencias negativas pueden dejar su huella molecular al modificar la señalización de los glucocorticoides placentarios. El objetivo es determinar la expresión molecular de los receptores de glucocorticoides en la placenta a término de gestantes normopeso, con obesidad pregestacional y obesidad gestacional, y relacionarlas con factores sociales, económicos, demográficos y emocionales. Estudio transversal, en una clínica de tercer nivel en Cali, Colombia. Muestra: 60 mujeres (20 normo peso, 20 con obesidad pregestacional y 20 obesidad gestacional) se les aplicará encuesta epidemiológica, antropométrica y emocional. Sus placentas serán tratadas para extracción de RNA mensajero placentario, seguido de transcripción revesa y PCR en tiempo real del receptor de glucocorticoides NR3C1. Se podrá determinar si existen cambios en los niveles de expresión de los receptores de glucocorticoides NR3C1 en las placentas de los grupos seleccionados por peso materno y si estos cambios se relacionan con las características antropométricas, clínicas y emocionales.
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