2007
DOI: 10.18597/rcog.441
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La suplementación con hierro y el aumento del estrés oxidativo en el embarazo: una paradoja poco discutida

Abstract: La suplementación con hierro a las mujeres embarazadas es una recomendación ampliamente aceptada en la práctica médica. Sin embargo, el hierro participa en los fenómenos de iniciación y propagación de reacciones de generación de especies reactivas de oxígeno e hidroperóxidos lipídicos, los cuales juegan un papel importante en la fisiopatología de enfermedades como diabetes gestacional y preeclampsia. Aparece una paradoja: suplementar con hierro disminuye el riesgo de anemia y complicaciones, pero esta podría f… Show more

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Cited by 2 publications
(3 citation statements)
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“…In situations where the dose of prophylactic iron is exceeded, the proteins to which it binds (ferritin and transferrin) become saturated, leaving this mineral in its free form in the bloodstream, where it becomes one of the principal chemical species involved in producing oxidative stress with potentially damaging effects in both the mother and newborn. [11,13,16] In healthy women, SF concentration below 15-20 μg/l indicates the presence of iron deficiency. Based on this, some authors have proposed to start prophylactic iron when ferritin levels are between 30 and 70 μg/l, while pregnant women with ferritin levels above 70-80 μg/l do not require prophylactic iron.…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…In situations where the dose of prophylactic iron is exceeded, the proteins to which it binds (ferritin and transferrin) become saturated, leaving this mineral in its free form in the bloodstream, where it becomes one of the principal chemical species involved in producing oxidative stress with potentially damaging effects in both the mother and newborn. [11,13,16] In healthy women, SF concentration below 15-20 μg/l indicates the presence of iron deficiency. Based on this, some authors have proposed to start prophylactic iron when ferritin levels are between 30 and 70 μg/l, while pregnant women with ferritin levels above 70-80 μg/l do not require prophylactic iron.…”
Section: Discussionmentioning
confidence: 99%
“…During pregnancy iron supplements are used independently of hemoglobin levels, especially in developing countries. [16,17] In Mexico, iron is prescribed regardless of serum ferritin (SF) levels because ferritin is not usually measured in pregnant women. The aim of this study was to compare SF concentration and other hematological parameters between patients with PE and normal pregnant women without PE at the same gestational period who received supplemental iron during pregnancy.…”
Section: Introductionmentioning
confidence: 99%
“…Se propone que en aquellas embarazadas con sus depósitos de hierro completos, la suplementación expondría a la gestante a una gran cantidad de hierro en su sistema gastrointestinal, situación que podría favorecer el estrés oxidativo en este sistema y en el cuerpo en general. 66,[70][71][72] Estudios documentan que los suplementación diaria con hierro se asocian con alteración del metabolismo de la glucosa y a hipertensión en la mitad del embarazo. 72 Otros, analizan el tipo de hierro ingerido y sus efectos adversos; sugiriendo que los altos niveles de ingesta de hierro hemo de la dieta durante el período pre-concepcional y al inicio del embarazo, puede estar asociada con un mayor riesgo de DMG.…”
Section: Suplementaciónunclassified