RT Journal Article T1 Erythropoietin Improves Atrophy, Bleeding and Cognition in the Newborn Intraventricular Hemorrhage. A1 Hierro-Bujalance, Carmen A1 Infante-Garcia, Carmen A1 Sanchez-Sotano, Daniel A1 Del Marco, Angel A1 Casado-Revuelta, Ana A1 Mengual-Gonzalez, Carmen Maria A1 Lucena-Porras, Carmen A1 Bernal-Martin, Marcos A1 Benavente-Fernandez, Isabel A1 Lubian-Lopez, Simon A1 Garcia-Alloza, Monica K1 Brain atrophy K1 Erythropoietin K1 Gelsolin AB The germinal matrix-intraventricular hemorrhage (GM-IVH) is one of the most devastating complications of prematurity. The short- and long-term neurodevelopmental consequences after severe GM-IVH are a major concern for neonatologists. These kids are at high risk of psychomotor alterations and cerebral palsy; however, therapeutic approaches are limited. Erythropoietin (EPO) has been previously used to treat several central nervous system complications due to its role in angiogenesis, neurogenesis and as growth factor. In addition, EPO is regularly used to reduce the number of transfusions in the preterm infant. Moreover, EPO crosses the blood-brain barrier and EPO receptors are expressed in the human brain throughout development. To analyze the role of EPO in the GM-IVH, we have administered intraventricular collagenase (Col) to P7 mice, as a model of GM-IVH of the preterm infant. After EPO treatment, we have characterized our animals in the short (14 days) and the long (70 days) term. In our hands, EPO treatment significantly limited brain atrophy and ventricle enlargement. EPO also restored neuronal density and ameliorated dendritic spine loss. Likewise, inflammation and small vessel bleeding were also reduced, resulting in the preservation of learning and memory abilities. Moreover, plasma gelsolin levels, as a feasible peripheral marker of GM-IVH-induced damage, recovered after EPO treatment. Altogether, our data support the positive effect of EPO treatment in our preclinical model of GM-IVH, both in the short and the long term. PB Frontiers Research Foundation SN 2296-634X YR 2020 FD 2020-08-18 LK http://hdl.handle.net/10668/16401 UL http://hdl.handle.net/10668/16401 LA en NO Hierro-Bujalance C, Infante-Garcia C, Sanchez-Sotano D, Del Marco A, Casado-Revuelta A, Mengual-Gonzalez CM, et al. Erythropoietin Improves Atrophy, Bleeding and Cognition in the Newborn Intraventricular Hemorrhage. Front Cell Dev Biol. 2020 Sep 16;8:571258 DS RISalud RD Apr 6, 2025