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The psychotomimetic effects of intravenous delta-9-tetrahydrocannabinol in healthy individuals: implications for psychosis.
Neuropsychopharmacology 2004; 29(8):1558-72N

Abstract

Recent advances in the understanding of brain cannabinoid receptor function have renewed interest in the association between cannabinoid compounds and psychosis. In a 3-day, double-blind, randomized, and counterbalanced study, the behavioral, cognitive, and endocrine effects of 0, 2.5, and 5 mg intravenous delta-9-tetrahydrocannabinol (Delta-9-THC) were characterized in 22 healthy individuals, who had been exposed to cannabis but had never been diagnosed with a cannabis abuse disorder. Prospective safety data at 1, 3, and 6 months poststudy was also collected. Delta-9-THC (1) produced schizophrenia-like positive and negative symptoms; (2) altered perception; (3) increased anxiety; (4) produced euphoria; (5) disrupted immediate and delayed word recall, sparing recognition recall; (6) impaired performance on tests of distractibility, verbal fluency, and working memory (7) did not impair orientation; (8) increased plasma cortisol. These data indicate that Delta-9-THC produces a broad range of transient symptoms, behaviors, and cognitive deficits in healthy individuals that resemble some aspects of endogenous psychoses. These data warrant further study of whether brain cannabinoid receptor function contributes to the pathophysiology of psychotic disorders.

Authors+Show Affiliations

Schizophrenia Biological Research Center, VA Connecticut Healthcare System, West Haven, CT 06516, USA. deepak.dsouza@yale.eduNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Clinical Trial
Journal Article
Randomized Controlled Trial
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.
Research Support, U.S. Gov't, P.H.S.

Language

eng

PubMed ID

15173844

Citation

D'Souza, Deepak Cyril, et al. "The Psychotomimetic Effects of Intravenous Delta-9-tetrahydrocannabinol in Healthy Individuals: Implications for Psychosis." Neuropsychopharmacology : Official Publication of the American College of Neuropsychopharmacology, vol. 29, no. 8, 2004, pp. 1558-72.
D'Souza DC, Perry E, MacDougall L, et al. The psychotomimetic effects of intravenous delta-9-tetrahydrocannabinol in healthy individuals: implications for psychosis. Neuropsychopharmacology. 2004;29(8):1558-72.
D'Souza, D. C., Perry, E., MacDougall, L., Ammerman, Y., Cooper, T., Wu, Y. T., ... Krystal, J. H. (2004). The psychotomimetic effects of intravenous delta-9-tetrahydrocannabinol in healthy individuals: implications for psychosis. Neuropsychopharmacology : Official Publication of the American College of Neuropsychopharmacology, 29(8), pp. 1558-72.
D'Souza DC, et al. The Psychotomimetic Effects of Intravenous Delta-9-tetrahydrocannabinol in Healthy Individuals: Implications for Psychosis. Neuropsychopharmacology. 2004;29(8):1558-72. PubMed PMID: 15173844.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The psychotomimetic effects of intravenous delta-9-tetrahydrocannabinol in healthy individuals: implications for psychosis. AU - D'Souza,Deepak Cyril, AU - Perry,Edward, AU - MacDougall,Lisa, AU - Ammerman,Yola, AU - Cooper,Thomas, AU - Wu,Yu-Te, AU - Braley,Gabriel, AU - Gueorguieva,Ralitza, AU - Krystal,John Harrison, PY - 2004/6/3/pubmed PY - 2004/9/9/medline PY - 2004/6/3/entrez SP - 1558 EP - 72 JF - Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology JO - Neuropsychopharmacology VL - 29 IS - 8 N2 - Recent advances in the understanding of brain cannabinoid receptor function have renewed interest in the association between cannabinoid compounds and psychosis. In a 3-day, double-blind, randomized, and counterbalanced study, the behavioral, cognitive, and endocrine effects of 0, 2.5, and 5 mg intravenous delta-9-tetrahydrocannabinol (Delta-9-THC) were characterized in 22 healthy individuals, who had been exposed to cannabis but had never been diagnosed with a cannabis abuse disorder. Prospective safety data at 1, 3, and 6 months poststudy was also collected. Delta-9-THC (1) produced schizophrenia-like positive and negative symptoms; (2) altered perception; (3) increased anxiety; (4) produced euphoria; (5) disrupted immediate and delayed word recall, sparing recognition recall; (6) impaired performance on tests of distractibility, verbal fluency, and working memory (7) did not impair orientation; (8) increased plasma cortisol. These data indicate that Delta-9-THC produces a broad range of transient symptoms, behaviors, and cognitive deficits in healthy individuals that resemble some aspects of endogenous psychoses. These data warrant further study of whether brain cannabinoid receptor function contributes to the pathophysiology of psychotic disorders. SN - 0893-133X UR - https://www.unboundmedicine.com/medline/citation/15173844/The_psychotomimetic_effects_of_intravenous_delta_9_tetrahydrocannabinol_in_healthy_individuals:_implications_for_psychosis_ L2 - http://dx.doi.org/10.1038/sj.npp.1300496 DB - PRIME DP - Unbound Medicine ER -