title: [Urinary catecholamine excretion in aging].
abstract: In ageing female subjects, the urinary noradrenaline excretion (UNA) is reduced with respect to the controls in young adults. On the other hand the ratio UNA/clearance of endogenous creatinine increases with ageing. This provides a confirmation of the fact that ageing is associated with an increase in plasma noradrenaline. The ratio UA/clearance of creatinine remains unaltered. So far the physiological meaning of these results remains unclear.
mesh_terms: D000328:Adult; D000368:Aged; D000375:Aging; D002395:Catecholamines / Q000652:urine*; D003404:Creatinine / Q000652:urine; D004837:Epinephrine / Q000652:urine; D005260:Female; D006801:Humans; D009638:Norepinephrine / Q000652:urine
chemical_list: D002395:Catecholamines; D003404:Creatinine; D009638:Norepinephrine; D004837:Epinephrine
vernacular_title: Excrétion urinaire des catécholamines au cours de la sénescence.