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Ischemic Stroke ll: Pathophysiology

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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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Isolation and Flow Cytometric Assessment of Neuroimmune Interactions in a Mini-Stroke Murine Model

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Inflammatory marker expression and its implication in Korean ischemic stroke patients.

Su Yon Park¹, Meoung Hee Kim, So Young Kang

¹Department of Laboratory Medicine, Kyunghee Medical Center, Kyunghee University, College of Medicine, Seoul, Korea.

The Korean Journal of Laboratory Medicine

|December 21, 2007

Summary

Elevated inflammatory markers, including matrix metalloproteinase-9 (MMP-9) and high-sensitivity C-reactive protein (hs-CRP), are linked to ischemic stroke. These markers may aid in diagnosing stroke patients.

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Area of Science:

Neurology
Immunology
Genetics

Background:

Ischemic stroke is a complex condition with multiple contributing factors.
Inflammatory markers are increasingly recognized for their potential role in vascular diseases.

Purpose of the Study:

To compare inflammatory marker expression in Korean ischemic stroke patients.
To investigate the relationship between inflammatory markers and APOE polymorphism in stroke.

Main Methods:

Serum levels of MMP-9, TIMP-1, and hs-CRP were measured in 275 ischemic stroke patients and 119 healthy controls.
Patients were categorized into large artery atherosclerosis (LAA) and small artery occlusion (SAO) subgroups.
Clinical risk factors, inflammatory marker levels, and APOE genotypes were compared between groups.

Main Results:

Stroke patients exhibited significantly elevated MMP-9 and hs-CRP levels compared to controls.
The LAA subgroup showed significantly higher TIMP-1 levels than the SAO subgroup.
No significant differences in inflammatory marker levels were found among APOE allele carriers.

Conclusions:

Circulating inflammatory markers, particularly MMP-9 and hs-CRP, are elevated in acute ischemic stroke.
Serum levels of MMP-9, TIMP-1, and hs-CRP may serve as valuable diagnostic indicators for ischemic stroke.