Why the study?
Does prolonged propranolol administration increase myocardial transmural capillary density in young rabbits?
Population
12-week old young rabbits
Comparison
Propranolol subcutaneous twice daily for 6 weeks vs Saline (controls) in litter-mates
Design
Preclinical
Follow-up
6 weeks
Authors
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Hypothesis-generating for beta-blocker microvascular effects in immature hearts; leaves open human translation and clinical relevance.
Does prolonged propranolol administration increase myocardial transmural capillary density in young rabbits?
Prolonged propranolol administration increases myocardial capillary density in young rabbits, suggesting a potential mechanism for reducing ventricular susceptibility to ischemia.
Tasgal et al. (1981) studied this question.
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