Interaction of sodium sensitivity and stress in young adults.
The interaction of sodium sensitivity and stress-induced cardiovascular reactivity was studied in white and black young adults aged 18-23 years. The cardiovascular response to difficult mental arithmetic was measured before and after 14 days of oral sodium loading (10 g NaCl/day added to the usual diet). A sodium-sensitive blood pressure response occurred in 18.4% of whites and 37.3% of blacks. A significant correlation between blood pressure change and sodium excretion occurred in the sodium-sensitive group (r = - 0.28, p less than 0.01). High sodium intake did not augment blood pressure or heart rate response to the beta-adrenergic-mediated stimulus of mental arithmetic in the population, which was grouped by blood pressure, race, or sodium sensitivity.
Falkner
B
B
Department of Pediatrics, Hahnemann University, Philadelphia, Pa.
Kushner
H
H
D000293:Adolescent; D000328:Adult; D044383:Black People; D001794:Blood Pressure / Q000187:drug effects*; D004351:Drug Resistance; D006801:Humans; D006973:Hypertension / Q000503:physiopathology; D009318:Natriuresis; D009424:Nervous System Physiological Phenomena; D012016:Reference Values; D012964:Sodium / Q000494:pharmacology*; D013312:Stress, Physiological / Q000503:physiopathology*; D044465:White People
D012964:Sodium