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Related Concept Videos

Acute Inflammation III: Local and Systemic Effects01:25

Acute Inflammation III: Local and Systemic Effects

Acute inflammation produces a coordinated set of local and systemic changes that limit injury, eliminate pathogens, and initiate repair. These responses arise within minutes of infection, trauma, or chemical insult and are driven by vascular alterations and leukocyte-derived mediators. When the stimulus resolves, the reaction typically abates within days.Local EffectsAt the site of injury, arteriolar vasodilation increases blood flow, resulting in redness and warmth. Simultaneously, increased...
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Ischemic stroke is an acute cerebrovascular condition in which blood flow to a brain region is suddenly interrupted, leading to tissue infarction. Neurons depend on continuous oxygen and glucose supply, so even brief reductions in perfusion cause energy failure, ionic imbalance, and irreversible injury. Ischemic strokes are classified into thrombotic and embolic types based on their underlying mechanisms.Thrombotic MechanismsThrombotic stroke develops when a clot forms within a cerebral artery.
Ischemic Stroke ll: Pathophysiology01:15

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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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Bacterial Meningitis II: Pathophysiology

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Encephalitis is inflammation of the brain parenchyma caused by direct viral invasion or immune-mediated mechanisms triggered by infections or tumors. Both processes lead to neuronal injury, disrupted neurotransmission, and diverse neurological symptoms, often with overlapping clinical and pathological features.Autoimmune EncephalitisIn autoimmune encephalitis, antibodies target neuronal antigens on cell surfaces, synapses, or within neurons. A key example is anti-NMDAR encephalitis, which can...
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Related Experiment Video

Updated: Jul 1, 2026

Isolation and Flow Cytometric Analysis of Immune Cells from the Ischemic Mouse Brain
12:14

Isolation and Flow Cytometric Analysis of Immune Cells from the Ischemic Mouse Brain

Published on: February 12, 2016

Systemic infection, inflammation and acute ischemic stroke.

B W McColl1, S M Allan, N J Rothwell

  • 1Faculty of Life Sciences, Michael Smith Building, University of Manchester, Manchester M13 9PT, UK. barry.mccol@manchester.ac.uk

Neuroscience
|September 16, 2008
PubMed
Summary

Systemic inflammation significantly impacts stroke risk and outcomes. Understanding this connection is crucial for developing effective stroke prevention and treatment strategies.

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Last Updated: Jul 1, 2026

Isolation and Flow Cytometric Analysis of Immune Cells from the Ischemic Mouse Brain
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Area of Science:

  • Neuroscience
  • Immunology
  • Cardiovascular Medicine

Background:

  • Inflammation plays a critical role in stroke development and progression.
  • Systemic inflammatory conditions are recognized stroke risk factors.
  • Pre-stroke systemic inflammation influences acute and long-term stroke prognosis.

Purpose of the Study:

  • To provide an overview of how systemic inflammation affects stroke susceptibility and outcomes.
  • To explore the mechanisms linking systemic inflammation to ischemic brain injury.
  • To discuss implications for stroke prevention, therapy, and research models.

Main Methods:

  • Review of extensive clinical and pre-clinical evidence.
  • Analysis of the relationship between systemic inflammatory profiles and stroke.
  • Discussion of underlying pathophysiological mechanisms.

Main Results:

  • Elevated systemic inflammation is linked to increased stroke risk.
  • Systemic inflammatory status is a key determinant of stroke severity and prognosis.
  • Inflammatory events outside the brain significantly impact stroke outcomes.

Conclusions:

  • Systemic inflammation is a critical factor in stroke.
  • Targeting systemic inflammation may offer new avenues for stroke prevention and treatment.
  • Further research is needed to fully elucidate mechanisms and therapeutic potential.