Abstract
The concentrations of acetylcholine and norepinephrine and acetylcholinesterase activity in the myocardium as well as chronotropic cardiac response to exogenous mediators administered in increasing doses were studied in experiments on growing rats. The results indicate that the chronotropic response to norepinephrine decreases with age despite of increased intracardial concentration of norephinephrine. Cholinergic influence and myocardial reactivity to acetylcholine increase with age.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Published version (
Free)
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
