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- W4361283463 abstract "Ischemic brain injury occurs when there is reduced or complete disruption of blood flow to a brain region, such as in stroke or severe traumatic brain injury. Even short interruptions can lead to devastating effects including excitotoxicity and widespread cell death. Despite many decades of research, there are still very few therapeutic options for patients suffering from brain ischemia. We developed an in vitro brain ischemia model using our previously established 3D spheroids derived from primary postnatal rat cortex. These spheroids provide an in vivo-relevant model containing a similar cellular composition to the native cortex and a cell-synthesized extracellular matrix. This model is cost-effective, highly reproducible, and can be produced in a high-throughput manner, making it an ideal candidate for screening potential therapeutics. To study the cellular and molecular mechanisms of stroke in this model, spheroids were deprived of glucose, oxygen, or both oxygen and glucose for 24 h. Both oxygen and oxygen-glucose deprived spheroids demonstrated many of the hallmarks of ischemic brain injury, including a decrease in metabolism, an increase in neural dysfunction, breakdown in the neurovascular unit, and an increase in reactive astrocytes. Pretreatment of spheroids with the antioxidant agent N-acetylcysteine (NAC) mitigated the decrease in ATP after oxygen–glucose deprivation, was partially neuroprotective, and enhanced the expression of laminin. This 3D cortical spheroid model provides a platform for studying ischemic injury and has the potential for screening therapeutics." @default.
- W4361283463 created "2023-03-31" @default.
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- W4361283463 date "2023-03-29" @default.
- W4361283463 modified "2023-10-18" @default.
- W4361283463 title "Cortical Spheroid Model for Studying the Effects of Ischemic Brain Injury" @default.
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- W4361283463 doi "https://doi.org/10.1007/s44164-023-00046-z" @default.
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