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Cited by 924

The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.

Serotonin Function and the Mechanism of Antidepressant Action: Reversal of Antidepressant-Induced Remission by Rapid Depletion of Plasma Tryptophan

Delgado, Pedro L.·1990·Archives of General Psychiatry

Abstract

Brain serotonin content is dependent on plasma levels of the essential amino acid tryptophan. We investigated the behavioral effects of rapid tryptophan depletion in patients in antidepressant-induced remission. Twenty-one patients who were depressed by DSM-III-R criteria received a 24-hour, 160-mg/d, low-tryptophan diet followed the next morning by a 16-amino acid drink, in a double-blind, placebo-controlled (acute tryptophan depletion and control testing), crossover fashion. Total and free tryptophan levels decreased 87% and 91%, respectively, during acute tryptophan depletion. Fourteen of the 21 remitted depressed patients receiving antidepressants experienced a depressive relapse after the tryptophan-free amino acid drink, with gradual (24 to 48 hours) return to the remitted state on return to regular food intake. Control testing produced no significant behavioral effects. Free plasma tryptophan level was negatively correlated with depression score during acute tryptophan depletion. The therapeutic effects of some antidepressant drugs may be dependent on serotonin availability.

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Crossref · 10.1001/archpsyc.1990.01810170011002

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Metadata

Authors
Delgado, P. L.
Venue
Archives of General Psychiatry
Published
1990-05-01
Volume
47
Issue
5
Pages
411
ISSN
0003-990X (ISSN-L)
OpenAlex
W2043567599
Cited by
924
References
2
FWCI
14.56
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Serotonin Function and the Mechanism of Antidepressant Action: Reversal of Antidepressant-Induced Remission by Rapid Depletion of Plasma Tryptophan. https://app.cochat.ai/papers/10.1001/archpsyc.1990.01810170011002
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Delgado, P. L. (1990). Serotonin Function and the Mechanism of Antidepressant Action: Reversal of Antidepressant-Induced Remission by Rapid Depletion of Plasma Tryptophan. Archives of General Psychiatry. https://doi.org/10.1001/archpsyc.1990.01810170011002

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