Role of Myocardial Neuronal Nitric Oxide Synthase–Derived Nitric Oxide in β-Adrenergic Hyporesponsiveness After Myocardial Infarction–Induced Heart Failure in Rat
Why the study?
Does acute NOS1 inhibition improve beta-adrenergic responsiveness in a rat model of myocardial infarction-induced heart failure?
Population
Rat model of myocardial infarction-induced heart failure and sham controls
Comparison
Acute NOS1 inhibition and beta-adrenergic… vs Sham rats and baseline responses without NOS1…
Design
Preclinical
Authors
Discussion
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Member takes
Implication
Does not support clinical NOS1 inhibition in HF; hypothesis-generating for restoring beta-adrenergic responsiveness.
Structured PICO
Does acute NOS1 inhibition improve beta-adrenergic responsiveness in a rat model of myocardial infarction-induced heart failure?
P
Population
Rat model of myocardial infarction-induced heart failure and sham controls
I
Intervention
Acute NOS1 inhibition and beta-adrenergic stimulation
C
Comparator
Sham rats and baseline responses without NOS1 inhibition
O
Outcome
Myocardial contractility (ventricular elastance [E(es)], tau, and LV +dP/dt)surrogate
Increased NOS1-derived NO production contributes to beta-adrenergic hyporesponsiveness in heart failure, suggesting a role in the autocrine regulation of myocardial contractility.
Cite This Study
Bendall et al. (2004) studied this question.