Do the Apoe-/- and Ldlr-/- Mice Yield the Same Insight on Atherogenesis?

Area of Science:

• Cardiovascular Research
• Translational Medicine
• Animal Models of Disease

Background:

• Murine models are vital for studying atherosclerosis, encompassing genetic and environmental factors.
• Apolipoprotein E knockout (Apoe(-/-)) and Low-Density Lipoprotein Receptor knockout (Ldlr(-/-)) mice are the most common models.
• These models exhibit distinct mechanisms of atherosclerosis development and lipoprotein profiles.

Purpose of the Study:

• To delineate critical differences between Apoe(-/-) and Ldlr(-/-) mouse models of atherosclerosis.
• To compare study outcomes derived from single-model versus dual-model investigations.
• To guide future research by highlighting model-specific findings in atherosclerosis.

Main Methods:

• Comparative analysis of existing literature on Apoe(-/-) and Ldlr(-/-) mouse models.
• Review of studies investigating gene function in atherogenesis using these models.
• Identification of research employing both models to assess atherosclerosis.

Main Results:

• Significant disparities exist in plasma lipoproteins and atherosclerosis mechanisms between Apoe(-/-) and Ldlr(-/-) mice.
• Generalization of findings from single-model studies may oversimplify complex atherogenic pathways.
• A subset of studies conducted in both models reveals comparable results, while others show divergent outcomes.

Conclusions:

• Apoe(-/-) and Ldlr(-/-) models offer unique insights but are not interchangeable for all atherosclerosis research.
• Careful consideration of model-specific characteristics is essential for interpreting and applying research findings.
• Future studies should judiciously select and, where appropriate, utilize both models to advance understanding of atherosclerosis.