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A Calcium Phosphate-Induced Mouse Abdominal Aortic Aneurysm Model
Published on: November 18, 2022
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A Calcium Phosphate-Induced Mouse Abdominal Aortic Aneurysm Model.
Siting Zhang1, Zeyu Cai1, Xu Zhang1
1Department of Physiology and Pathophysiology, School of Basic Medical Sciences; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Peking University.
Journal of Visualized Experiments : Jove
|December 5, 2022
Summary
This study details a cost-effective calcium phosphate (CaPO4)-induced mouse model for abdominal aortic aneurysm (AAA). This method rapidly replicates key AAA pathologies, aiding cardiovascular disease research.
Area of Science:
- Cardiovascular Biology
- Vascular Pathology
- Animal Models
Background:
- Abdominal aortic aneurysm (AAA) is a global cardiovascular disease characterized by aortic dilation.
- Existing chemically induced murine AAA models simulate different pathogenic aspects.
- The calcium phosphate (CaPO4)-induced model offers a rapid and cost-effective alternative.
Purpose of the Study:
- To introduce a standardized protocol for the CaPO4-induced AAA mouse model.
- To provide a reproducible method for studying AAA pathogenesis.
- To facilitate research into novel AAA treatments.
Main Methods:
- Surgical application of CaPO4 crystals to the adventitia of the infrarenal abdominal aorta in mice.
- Harvesting of aortas for macroscopic visualization of aneurysms.
- Histological analysis to assess elastic fiber degradation, smooth muscle cell loss, inflammation, and calcification.
Main Results:
- The CaPO4-induced AAA model effectively replicates key pathological features of human AAA.
- This model demonstrates elastic fiber degradation, smooth muscle cell loss, inflammation, and calcium deposition.
- The protocol allows for rapid induction and visualization of aortic aneurysms.
Conclusions:
- The CaPO4-induced AAA model is a valuable, rapid, and cost-effective tool for cardiovascular research.
- This standardized protocol enhances reproducibility in AAA studies.
- The model aids in understanding AAA pathogenesis and evaluating therapeutic strategies.
