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Arteriosclerosis obliterans in a rabbit model.
T P Murphy1, G S Dorfman, A R Esparza
1Department of Diagnostic Imaging, Rhode Island Hospital, Providence 02903.
Investigative Radiology
|December 1, 1992
Summary
Thrombin-induced thrombosis combined with de-endothelialization and a high-fat diet effectively creates occlusive atherosclerosis in rabbit femoral arteries, yielding better results than other methods.
Area of Science:
- Vascular Biology
- Animal Models
- Atherosclerosis Research
Background:
- Atherosclerosis is a major cause of cardiovascular disease.
- Developing reliable animal models is crucial for studying atherosclerosis.
- Rabbit models offer a viable platform for inducing and studying arterial lesions.
Purpose of the Study:
- To compare different experimental methods for inducing atherosclerotic occlusions in a rabbit model.
- To determine the most effective method for creating occlusive atherosclerosis in rabbit femoral arteries.
Main Methods:
- Forty femoral arteries in 20 rabbits were used to induce lesions.
- Four combinations of lesion induction methods were tested, including gas-drying, mechanical injury, and thrombin-induced thrombosis.
- Rabbits were fed a high-fat, high-cholesterol diet for 1-2 months post-lesion induction.
Main Results:
- Thrombin-induced thrombosis significantly increased the rate of atherosclerotic occlusions.
- Sixty-eight percent of arteries treated with thrombin-induced thrombosis showed occlusions, versus 27% without this treatment (P < .01).
Conclusions:
- Combining thrombin-induced thrombotic occlusion with de-endothelialization and a high-fat diet is superior for inducing experimental occlusive atherosclerosis in rabbits.
- This method offers a higher yield of reproducible atherosclerotic lesions compared to other techniques.