Effects of short-term modification of dietary sodium intake on plasma catecholamines and blood pressure in prehypertensive children.
The influence of dietary sodium intake on plasma catecholamines was examined as part of a dietary intervention study in 21 prehypertensive school children. Diastolic blood pressure was significantly elevated in girls after 3 weeks on a high sodium diet compared with a low sodium diet. Plasma adrenaline levels were raised slightly by the high sodium intake but plasma noradrenaline was significantly reduced. Increases of plasma catecholamines in response to standing or cold stress were unaffected by changes in sodium intake. The results indicate that the pressor effect of dietary sodium in children is not attributable to increased sympathetic nerve activity.
D000293:Adolescent; D001794:Blood Pressure / Q000187:drug effects*; D002395:Catecholamines / Q000097:blood*; D002648:Child; D004032:Diet; D005260:Female; D006339:Heart Rate / Q000187:drug effects; D006801:Humans; D006973:Hypertension / Q000503:physiopathology*; D008297:Male; D012964:Sodium / Q000494:pharmacology*
D002395:Catecholamines; D012964:Sodium