ABSTRACT
COVID-19 has reached pandemic proportions worldwide, with considerable consequences for both health and the economy. In pregnant women, COVID-19 can alter the metabolic environment, iron metabolism, and oxygen supply of trophoblastic cells, and therefore have a negative influence on essential mechanisms of fetal development. The purpose of this study was to investigate, for the first time, the effects of COVID-19 infection during pregnancy with regard to the oxidative/antioxidant status in mothers' serum and placenta, together with placental iron metabolism. Results showed no differences in superoxide dismutase activity and placental antioxidant capacity. However, antioxidant capacity decreased in the serum of infected mothers. Catalase activity decreased in the COVID-19 group, while an increase in 8-hydroxy-2'-deoxyguanosine, hydroperoxides, 15-FT-isoprostanes, and carbonyl groups were recorded in this group. Placental vitamin D, E, and Coenzyme-Q10 also showed to be increased in the COVID-19 group. As for iron-related proteins, an up-regulation of placental DMT1, ferroportin-1, and ferritin expression was recorded in infected women. Due to the potential role of iron metabolism and oxidative stress in placental function and complications, further research is needed to explain the pathogenic mechanism of COVID-19 that may affect pregnancy, so as to assess the short-term and long-term outcomes in mothers' and infants' health.
ABSTRACT
INTRODUCTION: Introduction: the pandemic caused by SARS-CoV-2 led to the declaration of the state of sanitary alarm between March and June 2020 in Spain. The activity of human milk banks was affected during that period, making it necessary to implement new measures in order to promote milk donation and diminish said impact. Method and objective: the aim of the study was to evaluate the impact of the state of alarm decreed from March 14 to June 22, 2020 on the breastmilk bank at Hospital Virgen de las Nieves, Granada, Spain, in comparison with the same period during the previous year. To that end, a retrospective descriptive study was undertaken in which the activity indicators of the breastmilk bank were collected and compared to data from the milk bank at Hospital Virgen de las Nieves and peripheral collaborating centers. Results: during the first state of alarm in 2020 a global reduction was seen in new donor registrations, number of donors who donated milk, donated mean volume per mother, and total volume of received and pasteurized milk. However, new registrations and number of donors who donated milk during this period increased in Granada's breastmilk bank. Discussion: the new measures adopted in the breastmilk bank in Granada, such as encouraging milk donation in mothers with admitted newborns in the Neonatal Unit, increasing information given to mothers, and home collection of donated milk, allowed to attenuate the impact of the pandemic while guaranteeing safety.
INTRODUCCIÓN: Introducción: la pandemia originada por el SARS-CoV-2 provocó la declaración del estado de alarma sanitaria entre marzo y junio de 2020 en España. Los bancos de leche materna han visto afectada su actividad durante este periodo, siendo necesario implementar nuevas medidas para promocionar la donación de leche y disminuir el impacto en la actividad. Método y objetivo: el objetivo del estudio es evaluar el impacto del estado de alarma decretado desde el 14 de marzo al 22 de junio de 2020 en el Banco de Leche del Hospital Virgen de las Nieves de Granada, en comparación con el mismo periodo del año previo. Para ello se ha realizado un estudio descriptivo retrospectivo en el que se han tenido en cuenta los indicadores de actividad del Banco de Leche de forma global y se han comparado los datos del Banco de Leche del Hospital Universitario Virgen de las Nieves, ubicado en Granada, con los datos de los centros periféricos que colaboran con el mismo. Resultados: durante el primer estado de alarma de 2020 hubo una disminución global de las inscripciones de nuevas donantes, del número de donantes que donaron leche, del volumen de donación media por madre y del volumen total de leche cruda recibida y pasteurizada. A pesar de ello, en el banco de leche de Granada aumentaron las nuevas inscripciones durante este periodo, así como el número de donantes que donaron leche. Discusión: las medidas adoptadas en el banco de leche ubicado en Granada, como incentivar la donación de leche entre las madres con niños ingresados en la Unidad Neonatal, aumentar la información a las madres y recoger la leche donada a domicilio, permitieron atenuar el impacto de la pandemia, garantizando la seguridad.