Effects of a branched-chain amino acid drink in mania
Administration of a complex tyrosine-free amino acid drink acutely decreases manic symptoms. Although a nutrient-based approach to illness management is attractive, complex amino acid drinks are too unpalatable for repeated administration. To assess whether a simple, branched-chain amino acid (BCAA)...
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Veröffentlicht in: | British journal of psychiatry 2003-03, Vol.182 (3), p.210-213 |
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Sprache: | eng |
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Zusammenfassung: | Administration of a complex tyrosine-free amino acid drink acutely decreases manic symptoms. Although a nutrient-based approach to illness management is attractive, complex amino acid drinks are too unpalatable for repeated administration.
To assess whether a simple, branched-chain amino acid (BCAA) drink diminishes manic symptoms acutely and following repeated administration.
Twenty-five patients with mania were randomly and blindly allocated to treatment with BCAA (60 g) or placebo daily for 7 days.
Relative to placebo, the BCAA drink lowered mania ratings acutely over the first 6 h of treatment. In protocol completers there was a persistent advantage to the BCAA group 1 week after the end of treatment.
A nutritional intervention that decreases tyrosine availability to the brain acutely ameliorates manic symptoms. Further studies are required to assess whether this approach has longer-term efficacy. |
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ISSN: | 0007-1250 1472-1465 |
DOI: | 10.1192/bjp.182.3.210 |