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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.
Hemorrhagic Stroke l: Introduction01:17

Hemorrhagic Stroke l: Introduction

A hemorrhagic stroke is an acute neurological event that occurs when a weakened cerebral blood vessel ruptures, allowing blood to accumulate within or around the brain. The sudden release of blood forms a focal hematoma that increases intracranial pressure, displaces neural tissue, and can obstruct cerebrospinal fluid pathways. These effects may be compounded by intraventricular extension of the hemorrhage, cerebral edema, or compression of adjacent structures, all of which contribute to...
Hemorrhagic Stroke ll: Pathophysiology01:29

Hemorrhagic Stroke ll: Pathophysiology

A hemorrhagic stroke develops when a cerebral blood vessel ruptures, allowing blood to escape into the surrounding brain tissue, as in intracerebral hemorrhage (ICH), or into the subarachnoid space, as in subarachnoid hemorrhage (SAH). Because the skull is a rigid compartment, the sudden presence of extravascular blood rapidly increases intracranial pressure and compresses adjacent neural structures, leading to immediate tissue injury and impaired cerebral perfusion.Mass Effect and Primary...
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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Alzheimer's Disease (AD), a neurodegenerative disorder, is pathologically identified by amyloid plaques and neurofibrillary tangles composed of tau protein. AD pharmacotherapy aims to manage cognitive symptoms, delay disease progression, and treat behavioral symptoms. The treatment is primarily symptomatic and palliative, with no definitive disease-modifying therapy available. Cholinesterase inhibitors, including donepezil (Aricept), rivastigmine (Exelon), and galantamine (Razadyne), are...

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Induction of Acute Ischemic Stroke in Mice Using the Distal Middle Artery Occlusion Technique
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ALDH2, a novel protector against stroke?

Aijun Sun1, Jun Ren

  • 1Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China.

Cell Research
|June 12, 2013
PubMed
Summary
This summary is machine-generated.

Researchers found a link between mitochondrial aldehyde dehydrogenase (ALDH2) expression in the brain and stroke prevalence. ALDH2 shows potential as a neuroprotective target for stroke management.

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Area of Science:

  • Neuroscience
  • Biochemistry
  • Cardiovascular Research

Background:

  • Mitochondrial aldehyde dehydrogenase (ALDH2) is a key enzyme involved in cellular metabolism.
  • ALDH2 functions as a mitochondrial chaperon within the brain.
  • Stroke remains a leading cause of disability and mortality worldwide.

Purpose of the Study:

  • To investigate the association between ALDH2 expression and stroke prevalence.
  • To explore ALDH2 as a potential therapeutic target for stroke.

Main Methods:

  • Analysis of ALDH2 expression levels in brain tissue.
  • Correlation studies with stroke incidence data.

Main Results:

  • A significant association was identified between ALDH2 expression and stroke prevalence.
  • Higher ALDH2 expression correlated with lower stroke incidence in the studied population.

Conclusions:

  • ALDH2 represents a potential endogenous neuroprotective factor.
  • Targeting ALDH2 may offer a novel therapeutic strategy for stroke prevention and treatment.