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Induction of Acute Ischemic Stroke in Mice Using the Distal Middle Artery Occlusion Technique
Published on: December 15, 2023
Ceria nanoparticles that can protect against ischemic stroke
Chi Kyung Kim1, Taeho Kim, In-Young Choi
1Department of Neurology, Seoul National University Hospital, Seoul 110-744, Korea.
Angewandte Chemie (International Ed. in English)
|September 13, 2012
Summary
Uniform ceria nanoparticles protect against ischemic stroke by reducing cell death. These nanoparticles scavenge reactive oxygen species (ROS) and decrease apoptosis, showing promise in both lab and animal studies.
Area of Science:
- Nanomedicine
- Neuroscience
- Biochemistry
Background:
- Ischemic stroke is a leading cause of death and disability.
- Reactive oxygen species (ROS) play a critical role in ischemic stroke-induced cell death.
- Ceria nanoparticles (CNPs) possess antioxidant properties with potential therapeutic applications.
Purpose of the Study:
- To investigate the neuroprotective effects of uniform 3 nm-sized ceria nanoparticles against ischemic stroke.
- To evaluate the efficacy of PEGylated ceria nanoparticles in vitro and in vivo.
Main Methods:
- In vitro studies using cell cultures to assess protection against ROS-induced cell death.
- In vivo studies in animal models of ischemic stroke to evaluate infarct volume and cell death.
- Characterization of ceria nanoparticles for size and surface modification (PEGylation).
Main Results:
- Uniform 3 nm-sized ceria nanoparticles effectively scavenged ROS and reduced apoptosis in vitro.
- PEGylated ceria nanoparticles demonstrated significant protective effects against ROS-induced cell death.
- Optimal doses of ceria nanoparticles significantly reduced infarct volumes and ischemic cell death in vivo.
Conclusions:
- Uniform 3 nm-sized ceria nanoparticles exhibit significant neuroprotective potential against ischemic stroke.
- Ceria nanoparticles offer a promising therapeutic strategy for mitigating ischemic stroke damage by targeting oxidative stress and apoptosis.
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