title: Effect of inheritance and stress on the diurnal excretion of sodium and potassium in young people with and without a family history of hypertension.
abstract: 1. The diurnal excretion of sodium and potassium was observed in young people, with and without a genetic predisposition to hypertension, both in the presence and absence of psychological stress. 2. In the absence of stress, the normal day/night sodium excretion ratio was reversed in the children of hypertensive parents. This was significantly less than day/night sodium excretion in children of normotensive parents. A similar finding was observed for day/night potassium excretion. 3. There was a significant negative correlation between systolic blood pressure and day/night sodium excretion in children of hypertensive parents but not in children of normotensive parents. 4. After the mental stress of a University examination day/night sodium reverted to normal in children of hypertensive parents.
mesh_terms: D000328:Adult; D001794:Blood Pressure; D002940:Circadian Rhythm; D005260:Female; D006801:Humans; D006973:Hypertension / Q000235:genetics*; D008297:Male; D011188:Potassium / Q000652:urine*; D012964:Sodium / Q000652:urine*; D013315:Stress, Psychological / Q000503:physiopathology / Q000652:urine*
chemical_list: D012964:Sodium; D011188:Potassium