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Activation of the endoplasmic reticulum stress response by the amyloid-beta 1–4...
Fonseca, Ana Catarina R. G.; Ferreiro, Elisabete; Oliveira, Catarina R.; Cardoso, Sandra M.; Pereira, Cláudia F.Neurovascular dysfunction arising from endothelial cell damage is an early pathogenic event that contributes to the neurodegenerative process occurring in Alzheimer's disease (AD). Since the mechanisms underlying endothelial dysfunction are not fully elucidated, this study was aimed to explore the hypothesis that brain endothelial cell death is induced upon the sustained activation of the endoplasmic reticulum ...
Oxidative glutamate toxicity involves mitochondrial dysfunction and perturbatio...
Pereira, Cláudia F.; Oliveira, Catarina Resende deGlutamate toxicity on PC12 cells is mediated by oxidative stress as a consequence of the inhibition of a cystine uptake system with depletion of GSH. In this study we report that glutamate decreases PC12 cell viability, inhibiting the reduction of 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT). This decrease was prevented by the antioxidants vitamin E, idebenone and -deprenyl, which were als...
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