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Updated: Aug 19, 2025
Using Zebrafish Larvae to Study the Pathological Consequences of Hemorrhagic Stroke
Published on: June 5, 2019
Zebrafish as a potential model for stroke: A comparative study with standardized models
Heloisa de Medeiros Borges1, Caroline Serafim Dagostin2, Emily Córneo2
1Laboratory of Experimental Pathophysiology, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, Brazil; Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, SC, Brazil.
Minocycline demonstrates neuroprotective effects against stroke-induced injury in zebrafish and mammalian models. This study validates zebrafish as a valuable model for investigating neuroprotection in cerebral ischemia and reperfusion injury.
Area of Science:
- Neuroscience
- Pharmacology
- Toxicology
Background:
- Cerebral ischemia and reperfusion injury are significant contributors to stroke pathophysiology.
- Animal models are crucial for understanding stroke mechanisms and evaluating therapeutic interventions.
- Zebrafish models offer a valuable platform for disease modeling and mechanistic studies.
Purpose of the Study:
- To evaluate the neuroprotective potential of minocycline against ischemia and reperfusion injury.
- To compare the efficacy of minocycline in zebrafish and mammalian stroke models.
- To validate zebrafish as an alternative model for stroke research.
Main Methods:
- In vitro studies using BV-2 cells.
- Mammalian transient middle cerebral artery occlusion (tMCAO) model.
- Zebrafish stroke model subjected to ischemia and reperfusion.
- Assessment of infarction size, cytokine levels, oxidative stress, glutamate toxicity, microglial activation, and behavioral tests.
Main Results:
- Minocycline administration showed significant neuroprotection across all three models.
- Reduced infarction size, modulated cytokine levels, and decreased oxidative stress were observed.
- Minocycline mitigated glutamate toxicity and microglial activation.
- Behavioral improvements were noted in treated animals.
Conclusions:
- Minocycline exhibits significant neuroprotective properties against cerebral ischemia and reperfusion injury.
- Zebrafish serve as a complementary and valid model for stroke research.
- This study supports the use of alternative models for investigating neuroprotective therapies.
