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Related Concept Videos

Ischemic Stroke l: Introduction01:15

Ischemic Stroke l: Introduction

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

Ischemic Stroke ll: Pathophysiology

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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Generation of Hook Ischemia-Reperfusion Model using a Three-Day Developing Chick Embryo
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The NLRP3 inflammasome in ischemic stroke.

Sepiso K Masenga1,2, Annet Kirabo2,3,4,5

  • 1HAND Research Group, School of Medicine and Health Sciences, Mulungushi University, Livingstone, Zambia.

Frontiers in Stroke
|January 16, 2026
PubMed
Summary

The NLRP3 inflammasome exacerbates ischemic stroke injury by initiating inflammatory responses. Targeting this inflammasome with antagonists may offer a therapeutic strategy to reduce brain tissue damage after stroke.

Keywords:
NLRP3braincardiovascular diseasecaspase-1genetic susceptibilityinflammasomeischemic stroke

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Area of Science:

  • Neuroscience
  • Immunology
  • Genetics

Background:

  • Ischemic stroke is a leading cause of death and disability globally.
  • The NLR family pyrin domain containing 3 (NLRP3) inflammasome plays a key role in ischemic stroke pathogenesis.
  • Understanding NLRP3 inflammasome's role is crucial for developing new stroke therapies.

Purpose of the Study:

  • To review the role of the NLRP3 inflammasome in ischemic stroke.
  • To highlight therapeutic strategies targeting the NLRP3 inflammasome.
  • To discuss the implications of genetic susceptibility in stroke.

Main Methods:

  • Literature review summarizing current research on NLRP3 inflammasome and ischemic stroke.
  • Analysis of intracellular pathways involved in stroke-induced inflammation.
  • Review of genetic factors influencing stroke prognosis.

Main Results:

  • Ischemic stroke triggers oxidative stress, activating NF-κB and subsequently the NLRP3 inflammasome.
  • The activated NLRP3 inflammasome promotes inflammation, worsening ischemic injury.
  • Genetic mutations in NLRP3 are linked to stroke outcomes, suggesting a role for genetic testing.

Conclusions:

  • The NLRP3 inflammasome is a critical mediator of ischemic stroke injury.
  • Targeting the NLRP3 inflammasome, for example, with IL-1β and IL-18 antagonists, shows therapeutic potential.
  • Integrating genetic testing with lifestyle assessments can improve stroke prevention strategies.