References
- Christensen N J. Is plasma noradrenaline an index of biologic age?. The Sympathoadrenal System. Physiology and Pathophysiology, N J Christensen, O Henriksen, N A Lassen. Munksgaard, Copenhagen 1986; 266–72
- Goldstein D S, Eisenhofer G, Stull R, Folio C J, Keiser H R, Kopin I J. Plasma dihydroxyphenyl-glycol and the intraneural disposition of norepinephrine in humans. Clin Invest 1988; 81: 213–20
- Ludwig J, Gerhardt T, Halbrügge T, Walter J, Graefe K-H. Plasma concentration of noradrenaline and 3,4-dihydroxyphenylethyleneglycol under conditions of enhanced sympathetic activity. Eur J Clin Pharmacol 1988; 35: 261–7
- Christensen N J, Dejgård A, Hilsted J. Plasma dihydroxyphenylglycol (DHPG) as an index of diabetic autonomic neuropathy. Clin Physiol 1988; 8: 577–80
- Eldrup E, Christensen N J, Andreasen J, Hilsted J. Plasma dihydroxyphenylalanine (DOPA) is independent of sympathetic activity in humans. Eur J Clin Invest 1989; 19: 514–7
- Kopin I J. Catecholamine metabolism: basic aspects and clinical significance. Pharmacol Rev 1985; 37: 333–64
- Pernow J, Lundberg J M, Kaijser L, Hjemdahl P, Theodorsson-Norheim E, Martinsson A, Pernow B. Plasma neuropeptide Y-like immunoreactivity and catecholamines during various degrees of sympathetic activation in man. Clin Physiol 1986; 6: 561–78
- Hjemdahl P. Catecholamine measurements in plasma by high-performance liquid chromatography with electrochemical detection. Metabolism of Aromatic Amino Acids. Methods of Enzymology, S Kaufman. Academic Press, New York 1987; Vol. 172: 521–34