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Niveles séricos del factor neurotrófico derivado del cerebro durante la gestación normal y la preeclampsia
Serum Levels of Brain Derived Neurotrophic Factor during Normal Pregnancy and Preeclampsia
Palabras clave:
Preeclampsia, Factor neurotrófico derivado del encéfalo, Embarazo (es)Pre-Eclampsia, Brain-Derived Neurotrophic Factor, Pregnancy (en)
Introducción. La preeclampsia (PE) es una de las principales causas de mortalidad materna y perinatal en el mundo, aparece en la segunda mitad de la gestación y actualmente no hay marcadores que la detecten en forma temprana. Dadas las propiedades angiogénicas del factor neurotrófico derivado del cerebro (BDNF) y la disfunción endotelial de los vasos sanguíneos presente en la PE, se ha propuesto una posible asociación entre el BDNF y PE.
Objetivo. Determinar si existe asociación entre niveles séricos de BDNF durante el embarazo y la preeclampsia.
Materiales y métodos. Estudio de cohorte prospectivo longitudinal. Se seleccionaron 13 pacientes quienes desarrollaron PE y 31 gestantes de curso normal. Se midieron variables antropométricas y niveles de BDNF, glicemia, insulina y perfil lipídico en la gestación temprana, media y tardía. Se practicó un modelo de regresión logística para verificar si los niveles de BDNF, en conjunto con otras variables, pueden explicar el desarrollo de PE.
Resultados. Los niveles de BDNF no variaron significativamente entre el grupo de gestantes que desarrollaron preeclampsia y las que no: en gestación temprana 25.3 y 23.3ng/ml, en gestación media 28 y 24.7ng/ml y en gestación tardía 25.4 y 27.4ng/ml, respectivamente. Se hallaron diferencias entre los dos grupos en el peso, la insulina y la evaluación del modelo homeostático (HOMA). Se encontró asociación entre niveles de BDNF y peso e IMC y glucemia en las gestantes que no desarrollaron PE. Se practicó un modelo de regresión logística en el que la PE se explicó mejor con variables como IMC, PAS y HOMA, pero no con BDNF.
Conclusiones. El BDNF puede participar en la regulación del peso corporal y el metabolismo de la glucosa en mujeres gestantes, pero el nivel de BDNF, solo o en conjunto con otras variables, no puede explicar la preeclampsia.
Introduction. Preeclampsia (PE) is one of the major causes of maternal and perinatal mortality in the world. PE appears during the second half of pregnancy and there are currently no markers for its early detection. Given the angiogenic properties of brain derived neurotrophic factor (BDNF) and the endothelial dysfunction of blood vessels that occurs during PE, an association between BDNF and PE has been proposed.
Objective. To determine if there is an association between BDNF serum levels and PE during pregnancy.
Materials and Methods. Prospective longitudinal cohort study. 13 patients who developed PE and 31 patients with normally coursing pregnancies were selected. Anthropometric variables, BDNF serum levels, glycemia, insulin and lipid profile in early, mid-term and late pregnancies were measured.
Results. No significant differences were observed in BDNF levels between women who developed PE and those who did not; in early pregnancy the levels were 25.3 and 23.3 ng/ml, for mid-term pregnancy 28 and 24.7 ng/ml and for late pregnancy 25.4 and 27.4 ng/ml for PE and normal pregnancy, respectively. An association between BDNF and weight and BMI and serum glucose was found in women who did not develop PE. A logistic regression model was carried out where PE was better explained through variables such as BMI, SBP and homoeostasis model assessment (HOMA), however BDNF was not taken into account here.
Conclusions. BDNF might have a role in regulating body weight and glucose metabolism in pregnant women but there is no evidence to suggest that BDNF alone or in combination with other variables can account for PE.
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Derechos de autor 2016 Revista de la Facultad de Medicina
Esta obra está bajo una licencia Creative Commons Reconocimiento 3.0 Unported.
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