Key result
Behavioral stimuli induced nonuniform central activation of sympathetic nerve activity to the heart and kidney, preceding increases in heart rate and arterial blood pressure.
Why the study?
Does behavioral stimuli and norepinephrine administration alter sympathetic nerve activity to the heart and kidney in conscious cats?
Population
Conscious cats
Comparison
Behavioral stimuli and norepinephrine iv… vs Rest/baseline
Design
Preclinical
Authors
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No immediate clinical implications; leaves open whether nonuniform sympathetic activation drives human behavioral pressor responses.
Does behavioral stimuli and norepinephrine administration alter sympathetic nerve activity to the heart and kidney in conscious cats?
Arterial blood pressure adjustment during behavior in cats is driven by nonuniform central activation of sympathetic nerve activity to the heart and blood vessels, rather than solely by baroreflexes.
Ninomiya et al. (1988) studied this question. Behavioral stimuli and norepinephrine iv administration vs. Rest was evaluated on Sympathetic nerve activity to the heart (CSNA) and kidney (RNA), heart rate (HR), and arterial blood pressure (AP). Behavioral stimuli induced nonuniform central activation of sympathetic nerve activity to the heart and kidney, preceding increases in heart rate and arterial blood pressure.
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