Browsing by Subject "Vitamin C"

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The glucose transporter-2 (GLUT2) is a low affinity dehydroascorbic acid transporter

Mardones Leiva, Lorena; Ormazábal, Valeska; Romo, Ximena; Jaña, Claudia; Binder, Pablo; Peña, Eduardo; Vergara, Marilyn; Zúñiga, Felipe (2011)

We studied the acquisition of dehydroascorbic acid by rat hepatocytes, H4IIE rat hepatoma cells and Xenopus laevis oocytes. Transport kinetics and competition and inhibition studies revealed that rat hepatocytes transport ...
Vitamin C Is an Essential Antioxidant That Enhances Survival of Oxidatively Stressed Human Vascular Endothelial Cells in the Presence of a Vast Molar Excess of Glutathione

Montecinos, Viviana; Guzmán, Paula; Barra, Valeria; Villagran, Marcelo; Muñoz, Carola; Sotomayor, Kirsty; Escobar, Elizabeth; Godoy, Alejandro; Mardones Leiva, Lorena; Sotomayor, Paula; Bustamante, Marcelo (2007)

Cellular glutathione levels may exceed vitamin C levels by 10-fold, generating the question about the real antioxidant role that low intracellular concentrations of vitamin C can play in the presence of a vast molar excess ...