AI Article Synopsis
- Emergency intravascular interventional therapy is crucial for quickly restoring blood flow in acute ischemic stroke, but some patients still face ineffective reperfusion and cerebral no-reflow due to issues in microcirculation.
- Endothelial cells play a significant role in regulating blood flow in the brain, but they have fewer mitochondria and are more focused on sensing stress than on energy production.
- Mitochondrial dysfunction in endothelial cells leads to injury and worsens microcirculation problems, making it vital to explore how mitochondrial changes can affect treatment outcomes and identify new therapeutic targets for preventing no-reflow.
Article Abstract
Emergency intravascular interventional therapy is the most effective approach to rapidly restore blood flow and manage occlusion of major blood vessels during the initial phase of acute ischemic stroke. Nevertheless, several patients continue to experience ineffective reperfusion or cerebral no-reflow phenomenon, that is, hypoperfusion of cerebral blood supply after treatment. This is primarily attributed to downstream microcirculation disturbance. As integral components of the cerebral microvascular structure, endothelial cells (ECs) attach importance to regulating microcirculatory blood flow. Unlike neurons and microglia, ECs harbor a relatively low abundance of mitochondria, acting as key sensors of environmental and cellular stress in regulating the viability, structural integrity, and function of ECs rather than generating energy. Mitochondria dysfunction including increased mitochondrial reactive oxygen species levels and disturbed mitochondrial dynamics causes endothelial injury, further causing microcirculation disturbance involved in the cerebral no-reflow phenomenon. Therefore, this review aims to discuss the role of mitochondrial changes in regulating the role of ECs and cerebral microcirculation blood flow during I/R injury. The outcomes of the review will provide promising potential therapeutic targets for future prevention and effective improvement of the cerebral no-reflow phenomenon.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11666140 | PMC |
| http://dx.doi.org/10.1097/MD.0000000000040951 | DOI Listing |
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