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An ischemic stroke occurs when a cerebral blood vessel becomes obstructed, most often by a thrombus or embolus, interrupting the delivery of oxygen and glucose to brain tissue. Because neurons rely on continuous aerobic metabolism, energy failure begins within minutes of reduced perfusion. The region receiving the least blood flow becomes the infarct core, an area of irreversible cellular death. Surrounding this core lies the penumbra, a zone of hypoperfused but still viable tissue that is...
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Related Experiment Video

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Isolation and Flow Cytometric Assessment of Neuroimmune Interactions in a Mini-Stroke Murine Model
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Screening of Key Genes Associated with Ischemic Stroke via Microarray Data.

Jianmin Wang, Dongliang Zhou, Hongwei Qin

    The Canadian Journal of Neurological Sciences. Le Journal Canadien Des Sciences Neurologiques
    |November 22, 2013
    PubMed
    Summary

    This study identified key genes and microRNAs involved in ischemic stroke (IS) pathogenesis using microarray data. Findings offer potential therapeutic targets for IS treatment.

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    Area of Science:

    • Genomics
    • Molecular Biology
    • Biotechnology

    Background:

    • Ischemic stroke (IS) poses a significant health burden globally.
    • Understanding the molecular mechanisms underlying IS pathogenesis is crucial for developing effective treatments.

    Purpose of the Study:

    • To identify key genes, functions, and pathways implicated in IS pathogenesis.
    • To explore potential diagnostic and therapeutic targets for IS using microarray analysis.

    Main Methods:

    • Microarray data from IS patients and healthy individuals were analyzed to identify differentially expressed genes (DEGs).
    • Gene Ontology (GO) enrichment analysis was performed to reveal overrepresented functions.
    • Protein-protein interaction networks were constructed for top DEGs.
    • Relevant microRNAs (miRNAs) targeting key genes were identified using multiple databases.

    Main Results:

    • A total of 503 DEGs were identified between IS patients and healthy controls.
    • Immune response, signaling pathways, and apoptosis were significantly overrepresented functional categories.
    • Six key genes with high network centrality were identified as potentially crucial in IS development.
    • 57 differentially expressed miRNAs targeting these key genes were retrieved.

    Conclusions:

    • The study elucidates critical molecular players in IS pathogenesis.
    • Identified key genes and miRNAs represent potential therapeutic targets for IS intervention.