The catecholamine storage mechanism in a neuroblastoma is less efficient than that in a pheochromocytoma, leading to increased intracellular breakdown of catecholamines. 7 To our knowledge, there ...

Urinary catecholamine levels are affected by renal metabolism, whereas plasma catecholamines may vary according to exposure and time of day. 14 In physiologic research settings, other measures ...

Treatment Options for High or Low Catecholamine Levels Treatment options for high or low catecholamine levels are available. Exact treatment depends on cause, but may include medication or surgery.

CATECHOLAMINE-producing tumors arising from tissue outside the adrenal medulla have long been recognized as causes of sustained or paroxysmal hypertension. 1 Their origin has traditionally been ...

Introduction PROMINENT among the symptoms of familial dysautonomia are the manifestations of autonomic dysfunction. 1 A disturbance in catecholamine metabolism has been documented by the ...

Urinary catecholamine metabolites are well-known biomarkers for the diagnosis (Dx) of neuroblastoma, but their clinical significance in determining therapy response during treatment is not well ...