What question did this study set out to answer?

This study aims to describe the coronary anatomy of C57BL/6 mice and assess its impact on myocardial infarctions from left coronary artery ligation.

Distinct mouse coronary anatomy and myocardial infarction consequent to ligation

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Randomized trial investigates coronary anatomy influence on infarction characteristics in mice, suggesting implications for heart remodeling.

This study aims to describe the coronary anatomy of C57BL/6 mice and assess its impact on myocardial infarctions from left coronary artery ligation.
C57BL/6 mice were used to visualize coronary anatomy and induce myocardial infarction.
Coronary artery visualization involved injecting Silastic sealant into the aortic arch.
Myocardial infarction was induced by ligating the left coronary artery after thoracotomy.
Distinct septal coronary artery was present in all mice, either from a separate ostium or a branch of the right coronary artery.
Ligation of the left coronary artery led to large myocardial infarctions in anterolateral, posterior, and apical heart regions.
The septum remained spared from infarction, correlating with the presence of the distinct septal coronary artery.

Kumar et al. (2005) studied this question.

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Randomized trial investigates coronary anatomy influence on infarction characteristics in mice, suggesting implications for heart remodeling.