Why the study?
Does pro-alpha2(I) collagen deficiency alter myocardial collagen structure and passive mechanical function in a murine model?
Population
Osteogenesis imperfecta murine (oim) model of pro-alpha2(I) collagen deficiency
Comparison
Homozygous oim mutation (pro-alpha2 collagen… vs Wild-type littermates
Design
Preclinical
Authors
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Reinforces collagen's direct role in ventricular stiffness; extends mechanistic data but leaves open human therapeutic translation.
Does pro-alpha2(I) collagen deficiency alter myocardial collagen structure and passive mechanical function in a murine model?
Decreased myocardial collagen in the oim murine model is associated with significantly decreased fiber and chamber stiffness, demonstrating that myocardial collagen contributes directly to ventricular stiffness.
Weis et al. (2000) studied this question.
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