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Eder Ramírez
Researcher at University of Concepción
Publications - 8
Citations - 70
Eder Ramírez is an academic researcher from University of Concepción. The author has contributed to research in topics: Ascorbic acid & Dehydroascorbic acid. The author has an hindex of 2, co-authored 5 publications receiving 38 citations.
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Journal ArticleDOI
Dehydroascorbic Acid Promotes Cell Death in Neurons Under Oxidative Stress: a Protective Role for Astrocytes
Andrea García-Krauss,Luciano Ferrada,Allisson Astuya,Katterine Salazar,Pedro Cisternas,Fernando Martínez,Eder Ramírez,Francisco Nualart +7 more
TL;DR: The effects of oxidative stress and DHA uptake on neuronal cell death in vitro indicate that DHA promotes the death of stressed neurons and that astrocytes are essential for the antioxidant defense of neurons, participating in the antioxidative defense of the brain.
Journal ArticleDOI
Two Distinct Faces of Vitamin C: AA vs. DHA.
Luciano Ferrada,Rocío Magdalena,María José Barahona,Eder Ramírez,Cristian Sanzana,José L. Gutiérrez,Francisco Nualart +6 more
TL;DR: In this article, the authors critically examine how vitamin C regulates these different cellular programs in normal and tumor cells in both tumor and normal cells, and show a permanent increase in processes regulated by vitamin C.
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Vitamin C deficient reduces proliferation in a human periventricular tumor stem cell-derived glioblastoma model.
Nery Jara,Eder Ramírez,Luciano Ferrada,Katterine Salazar,Francisca Espinoza,Iván González-Chavarría,Francisco Nualart +6 more
TL;DR: In this article, the effect of vitamin C deficiency on the progression of GBM using a GBM model generated by the stereotactic injection of human GBM cells (U87-MG or HSVT-C3 cells) in the subventricular zone of guinea pig brain.
Journal ArticleDOI
Glioblastoma invasiveness and collagen secretion are enhanced by vitamin C.
Eder Ramírez,Nery Jara,Luciano Ferrada,Katterine Salazar,Fernando J. Martinez,María José Oviedo,Joanna Tereszczuk,Sebastían Ramírez-Carbonell,Arabel Vollmann,Peter Hau,Francisco Nualart +10 more
TL;DR: Vitamin C is incorporated into the ER of glioblastoma cells, where it favors the synthesis of collagen, thus impacting tumor development, and a functional role for vitamin C is proposed.
Journal ArticleDOI
IIIG9 inhibition in adult ependymal cells changes adherens junctions structure and induces cellular detachment.
Victor Baeza,Manuel Cifuentes,Fernando Martínez,Eder Ramírez,Francisco Nualart,Luciano Ferrada,María José Oviedo,Isabelle De Lima,Ninoschka Troncoso,Natalia Saldivia,Katterine Salazar +10 more
TL;DR: In this article, the expression and localization of IIIG9 in the adherens junctions (cadherin/β-catenin-positive junctions) of adult brain ependymal cells using confocal and transmission electron microscopy.