scholarly journals Na+ and Ca2+ homeostasis pathways, cell death and protection after oxygen–glucose-deprivation in organotypic hippocampal slice cultures

Neuroscience ◽  
2004 ◽  
Vol 128 (4) ◽  
pp. 729-740 ◽  
Author(s):  
M. Martínez-Sánchez ◽  
F. Striggow ◽  
U.H. Schröder ◽  
S. Kahlert ◽  
K.G. Reymann ◽  
...  
Keyword(s):  
Cell Death ◽  
Hippocampal Slice ◽  
Glucose Deprivation ◽  
Oxygen Glucose Deprivation ◽  
Hippocampal Slice Cultures ◽  
Organotypic Hippocampal Slice Cultures

scholarly journals Protective effect of 20-HETE inhibition in a model of oxygen-glucose deprivation in hippocampal slice cultures

2012 ◽  
Vol 302 (6) ◽  
pp. H1285-H1293 ◽  
Author(s):  
Marija Renic ◽  
Suresh N. Kumar ◽  
Debebe Gebremedhin ◽  
Matthew A. Florence ◽  
Nashaat Z. Gerges ◽  
...  
Keyword(s):  
Cell Death ◽  
Protective Effect ◽  
Caspase 3 ◽  
Hippocampal Slice ◽  
Hippocampal Slices ◽  
Glucose Deprivation ◽  
Dienoic Acid ◽  
Oxygen Glucose Deprivation ◽  
Iodide Uptake ◽  
Hippocampal Slice Cultures

Recent studies have indicated that inhibitors of the synthesis of 20-hydroxyeicosatetraenoic acid (20-HETE) may have direct neuroprotective actions since they reduce infarct volume after ischemia reperfusion in the brain without altering blood flow. To explore this possibility, the present study used organotypic hippocampal slice cultures subjected to oxygen-glucose deprivation (OGD) and reoxygenation to examine whether 20-HETE is released by organotypic hippocampal slices after OGD and whether it contributes to neuronal death through the generation of ROS and activation of caspase-3. The production of 20-HETE increased twofold after OGD and reoxygenation. Blockade of the synthesis of 20-HETE with N-hydroxy- N′-(4-butyl-2-methylphenol)formamidine (HET0016) or its actions with a 20-HETE antagonist, 20-hydroxyeicosa-6( Z),15( Z)-dienoic acid, reduced cell death, as measured by the release of lactate dehydrogenase and propidium iodide uptake. Administration of a 20-HETE mimetic, 20-hydroxyeicosa-5( Z),14( Z)-dienoic acid (5,14-20-HEDE), had the opposite effect and increased injury after OGD. The death of neurons after OGD was associated with an increase in the production of ROS and activation of caspase-3. These effects were attenuated by HET0016 and potentiated after the administration of 5,14-20-HEDE. These findings indicate that the production of 20-HETE by hippocampal slices is increased after OGD and that inhibitors of the synthesis or actions of 20-HETE protect neurons from ischemic cell death. The protective effect of 20-HETE inhibitors is associated with a decrease in superoxide production and activation of caspase-3.

scholarly journals Neurons by oxygen-glucose deprivation in organotypic hippocampal slice cultures

2008 ◽  
Vol 51 (10) ◽  
pp. 1112
Author(s):  
David Chanwook Chung ◽  
Kyung Sik Hong ◽  
Jihui Kang ◽  
Young Pyo Chang
Keyword(s):  
Hippocampal Slice ◽  
Glucose Deprivation ◽  
Oxygen Glucose Deprivation ◽  
Hippocampal Slice Cultures ◽  
Organotypic Hippocampal Slice Cultures
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