Urinary catecholamine metabolites in hyperkinetic boys treated with d- amphetamine
Abstract
The authors studied the excretion of 3-methoxy-4-hydroxyphenyl glycol (MHPG), normetanephrine (NM), metanephrine, and homovanillic acid in 7 hyperactive and 12 control children. MHPG was lower but NM was significantly higher in hyperactive children than in controls. Administration of d-amphetamine for 2 weeks depressed the levels of MHPG, NM, and metanephrine. The authors suggest a decreased central norepinephrine activity, which may be secondary to the interruption of norepinephrine fibers in the medial forebrain bundle.
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