Related Experiment Video
Updated: Jun 23, 2026

11:32
Evaluating Cell Death Signaling by Immunofluorescence in a Rat Model of Ischemic Stroke
Published on: January 3, 2025
[Relationship between cystatin C and cerebral infarction].
De-qiang Zhao1, Su-yue Pan, Jian-hui Chen
1Department of Neurology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.
Summary
Lower serum cystatin C levels are associated with cerebral infarction. This suggests cystatin C may play a protective role against stroke development.
Area of Science:
- Biochemistry
- Neurology
Context:
- Cerebral infarction, a leading cause of disability, necessitates understanding of protective biomarkers.
- Cystatin C, a cysteine protease inhibitor, has emerging roles in various physiological processes.
Purpose:
- To investigate the association between serum cystatin C levels and cerebral infarction.
- To elucidate the potential protective function of cystatin C in cerebral infarction.
Summary:
- This study compared serum cystatin C levels in 83 cerebral infarction patients and 71 controls.
- Serum cystatin C was significantly lower in the cerebral infarction group (1.62±0.31 mg/L) compared to controls (2.23±0.22 mg/L, P<0.01).
Impact:
- Findings indicate a strong correlation between reduced cystatin C and cerebral infarction.
- Cystatin C may serve as a potential protective factor against the occurrence of cerebral infarction.
Related Concept Videos
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...
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.
Cerebral Edema ll: Pathophysiology
Vasogenic edema is a major form of cerebral edema characterized by abnormal accumulation of fluid in the brain’s extracellular space due to disruption of the blood–brain barrier (BBB). The BBB is a specialized structure composed of endothelial cells connected by tight junctions, supported by astrocytic endfeet and a basement membrane. Under normal conditions, it tightly regulates the movement of ions, proteins, and solutes between the bloodstream and brain parenchyma. When this barrier loses...
Cytotoxic Edema: Pathophysiology
Cytotoxic edema is a form of cerebral edema characterized by intracellular swelling of neurons, astrocytes, and other glial cells. It develops when the mechanisms responsible for maintaining ionic gradients across the cell membrane become impaired. Under normal physiological conditions, the sodium–potassium ATPase actively transports sodium ions out of the cell and potassium ions into the cell, preserving osmotic balance and enabling electrical signaling. This pump requires a continuous supply...
Cerebral Edema l: Introduction
Cerebral edema is a pathological increase in brain water content that disrupts intracranial pressure regulation and impairs neurological function. Because the cranial vault is rigid, even modest increases in tissue volume can compromise cerebral perfusion, distort neural structures, and initiate secondary injury. Cerebral edema develops through four principal mechanisms: vasogenic, cytotoxic, interstitial, and ionic.Vasogenic EdemaVasogenic edema arises from disruption of the blood–brain...

