Abstract
Several recent studies have shown that the acute cardiovascular response to behavioral stress or to adrenergic stimulation is increased in salt-loaded humans and laboratory animals. The present study examined the 24-hour variability of heart rate of laboratory dogs under conditions of significant increased in intraarterial intake of isotonic saline. These data are consistent with the hypothesis that increased sodium intake is associated with decreased chronotropic responsivity to intermittent chanaes in autonomic nervous system activity, conceivably due to a sodium-induced "down regulation" of beta-adrenergic receptors.
Original language | American English |
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Title of host publication | Stress, reactivity and cardiovascular disease: Proceedings of the working conference |
State | Published - 1984 |
Keywords
- hypertension
- behavioral stress
Disciplines
- Medicine and Health Sciences
- Psychology
- Social and Behavioral Sciences