Pheochromocytoma and paraganglioma (PPGL) require prompt consideration and efficient
diagnosis and treatment to minimize associated morbidity and mortality. Once considered …

Overflow of catecholamine neurotransmitters to the circulation: source, fate, and functions |
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Human plasma contains several catechols, including the catecholamines norepinephrine,
epinephrine, and dopamine, their precursor, l-3, 4-dihydroxyphenylalanine (l-DOPA), and …

Exposure of an organism to any of a variety of stressors markedly activates the
sympathoadrenal and hypothalamic-pituitary-adrenocortical systems. Interactions of these …

This book presents a new homeostatic theory of stress and distress and uses it to explain
how systems using the endogenous catecholamines—norepinephrine, epinephrine, and …

Dopamine is an important regulator of systemic blood pressure via multiple mechanisms. It
affects fluid and electrolyte balance by its actions on renal hemodynamics and epithelial ion …

Monoamine oxidase (MAO) exists as two isoenzymes and plays a central role in the
metabolism of monoamine neurotransmitters. In this study we compared the neurochemical …

Dopamine is synthesized in the nervous system where it acts as a neurotransmitter.
Dopamine is also synthesized in a number of peripheral organs as well as in several types …

Patients with neurogenic orthostatic hypotension can have deficits in sympathetic neural
function at any of several levels of the sympathetic neuraxis. We determined whether …

Five healthy volunteers and six patients with Parkinson's disease (PD) ate 250 g cooked
broad beans after 12 hours without treatment. During the next four hours a substantial …