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Related Experiment Videos

A model for quantitative evaluation of embolic stroke therapy.

J A Zivin1, U DeGirolami, A Kochhar

  • 1Neurology Service, Veterans Administration Medical Center, San Diego, CA.

Brain Research
|December 1, 1987
PubMed
Summary

A new rabbit stroke model effectively screens drugs. Serotonin antagonists like cyproheptadine significantly reduced neurological injury caused by emboli.

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Area of Science:

  • Neuroscience
  • Pharmacology
  • Cardiovascular Research

Background:

  • Developing reliable animal models is crucial for stroke research.
  • Pharmacological screening requires sensitive and reproducible models to assess therapeutic efficacy.

Purpose of the Study:

  • To establish a small animal embolic stroke model for drug screening.
  • To evaluate the protective effects of serotonin antagonists in this model.

Main Methods:

  • Induction of embolic stroke in rabbits using carotid artery microsphere injection.
  • Establishing dose-response relationships between emboli quantity and neurological deficit.
  • Assessing neurological function changes following embolization.

Main Results:

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  • The model demonstrated sensitivity to small changes in neurologic function.
  • Rabbits treated with cyproheptadine tolerated twice the number of microspheres.
  • This indicates reduced neurological injury in treated animals.

Conclusions:

  • The developed embolic stroke model is suitable for pharmacological screening.
  • Serotonin antagonists show potential in mitigating neurological damage post-stroke.