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Ischemic Stroke l: Introduction

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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.

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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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[Leptin level in ischemic stroke].

¹Uniwersytet Medyczny w Łodzi, Klinika Neurologii i Epileptologii z Oddzialem Udarowym. marta_p_80@o2.pl

Polski Merkuriusz Lekarski : Organ Polskiego Towarzystwa Lekarskiego

|June 24, 2010

Summary

This summary is machine-generated.

High leptin levels are linked to abdominal obesity and metabolic syndrome, increasing ischemic stroke risk. Further research is needed to understand leptin's role in cerebrovascular disease and stroke prevention.

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Area of Science:

Cardiovascular Research
Endocrinology
Neurology

Background:

Metabolic syndrome and abdominal obesity are key risk factors for cardiovascular diseases.
Adipose tissue produces leptin, a cytokine with potential proatherogenic properties.

Purpose of the Study:

To evaluate leptin levels in patients with acute ischemic stroke.
To determine leptin's role in the pathogenesis of cerebrovascular diseases.

Main Methods:

Examined 45 acute ischemic stroke patients and 17 controls.
Assessed lipid profile, glucose, blood pressure, BMI, waist circumference, and waist-to-hip ratio.
Measured leptin levels via ELISA and evaluated carotid artery intima-media thickness (CIMT).

Main Results:

Hyperleptinemia was more frequent in patients with abdominal obesity (p < 0.001) and metabolic syndrome (p < 0.01).
No independent association found between leptin, glucose levels, or hypertension (p > 0.05).
Hyperleptinemia correlated with increased CIMT, an early marker of atherosclerosis.

Conclusions:

Leptin may be a manifestation of obesity-related stroke risk.
Further investigation is required to elucidate leptin's role in cerebrovascular disease pathogenesis.
Leptin's potential role in ischemic stroke prophylaxis warrants further evaluation.