Experimental intracranial aneurysms in rats. A gross and microscopic study

Area of Science:

• Neuroscience
• Vascular Biology
• Experimental Pathology

Background:

• Cerebral aneurysms, particularly saccular types, pose significant health risks.
• Developing reliable experimental models is crucial for understanding aneurysm formation and progression.

Purpose of the Study:

• To establish and characterize an experimental model of cerebral aneurysms in rats.
• To assess the similarities between the induced aneurysms and human berry aneurysms.

Main Methods:

• Induction of experimental cerebral aneurysms in rats via left carotid artery ligation.
• Induction of hypertension using the Goldblatt procedure.
• Administration of a diet containing beta-aminopropionitrile.

Main Results:

• Successfully induced intracranial aneurysms with gross and microscopic features resembling human berry aneurysms.
• The experimental conditions provided a basis for observing aneurysm development.

Conclusions:

• The described rat model offers a valuable tool for investigating the development, pathophysiology, and therapeutic strategies for saccular cerebral aneurysms.
• This model facilitates research into cerebrovascular diseases.