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Autophagy- and MMP-2/9-mediated Reduction and Redistribution of ZO-1 Contribute to Hyperglycemia-increased Blood –Brain Barrier Permeability During Early Reperfusion in Stroke
Publication date: 1 May 2018 Source:Neuroscience, Volume 377 Author(s): Shuai Zhang, Qier An, Tianfu Wang, Shuping Gao, Guangqian Zhou Post-stroke hyperglycemia during early reperfusion increases blood–brain barrier (BBB) permeability and subsequently aggravates brain injury and clinical prognosis. The decreased level of tight junction proteins (TJPs) has been reported but the underlying mechanism remains largely elusive. Herein we designed to investigate the detailed molecular events in brain microvascular endothelial cells (BMECs) ex and in vivo. After oxygen–glucose deprivation (OGD) for 90 min and reperfusion wi...
Source: Neuroscience - March 21, 2018 Category: Neuroscience Source Type: research

Downregulation of Iduna is associated with AIF nuclear translocation in neonatal brain after hypoxia –ischemia
Publication date: 27 March 2017 Source:Neuroscience, Volume 346 Author(s): Xiaoxia Yang, Jianhua Cheng, Yubo Gao, Juan Ding, Xinli Ni In adult stroke models, the neuroprotective protein, Iduna, inhibits poly (ADP-ribose) polymerase-1 (PARP-1)-dependent cell death by decreasing apoptosis-inducing factor (AIF) nuclear translocation. Because the PARP1-dependent pathway and Iduna, which promotes AIF degradation, contribute to hypoxic–ischemic (HI) brain damage in the immature brain, we examined the relationship between Iduna expression and AIF nuclear translocation in the cerebral cortex of postnatal day 7 rats after HI. Ni...
Source: Neuroscience - January 31, 2017 Category: Neuroscience Source Type: research

Minocycline ameliorates hypoxia-induced blood–brain barrier damage by inhibition of HIF-1α through SIRT-3/PHD-2 degradation pathway
Conclusions: Minocycline inhibits HIF-1α-mediated cellular responses and protects BBB integrity through SIRT-3/PHD-2 pathway, proving to be a potential drug for the prevention and treatment of hypoxic brain injuries.
Source: Neuroscience - August 7, 2015 Category: Neuroscience Source Type: research

Methylene blue-induced neuronal protective mechanism against hypoxia-reoxygenation stress
Conclusion: We conclude that MB protects the hippocampus-derived neuronal cells against OGD-reoxygenation injury by enhancing energy metabolism and increasing HIF-1α protein content accompanied by an activation of the EPO signaling pathway.
Source: Neuroscience - June 26, 2015 Category: Neuroscience Source Type: research