Evidence map›Paper›PMID 15064921›Full record

ArticleNaunyn-Schmiedeberg's archives of pharmacology2004

Differential effects of acute cannabinoid drug treatment, mediated by CB1 receptors, on the in vivo activity of tyrosine and tryptophan hydroxylase in the rat brain.

David Moranta, Susana Esteban, Jesús A García-Sevilla

Abstract read
PubMed Publisher
In one paragraph

Article in Naunyn-Schmiedeberg's archives of pharmacology, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 1 pooled it
2.6field-weighted citation impact, top 12% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

25 citing papers in PubMed, 1 synthesis or guideline pooled it, 68 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Metabolomic profiling of cannabis use and cannabis intoxication in humans.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2025
    Article
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  13. Cannabinoid modulation of noradrenergic circuits: implications for psychiatric disorders.Progress in neuro-psychopharmacology & biological psychiatry · 2012
    Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Inhibition of monoamine oxidase activity by cannabinoids.Naunyn-Schmiedeberg's archives of pharmacology · 2010
    Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

David MorantaLaboratory of Neuropharmacology, Department of Biology, University of the Balearic Islands, Cra. Valldemossa Km 7.5, 07122 Palma de Mallorca, Spain.
Susana Esteban
Jesús A García-Sevilla
Universitat de les Illes Balears · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The acute effects of cannabinoid drugs on the synthesis of noradrenaline, dopamine, and serotonin (5-HT) were assessed, simultaneously, using the accumulation of 3,4-dihydroxyphenylalanine (dopa) and 5-hydroxytryptophan (5-HTP) after decarboxylase inhibition as a measure of the rate of tyrosine and tryptophan hydroxylation in the rat brain in vivo. Treatment (1 h, i.p.) with Delta(9)-tetrahydrocannabinol (THC, 5, 10, and 20 mg/kg) and the cannabinoid receptor agonist WIN 55,212-2 (WIN, 2 and 4 mg/kg) increased dopa/noradrenaline synthesis (40-70%) in various brain regions enriched in this neurotransmitter (e.g., cerebral cortex, hippocampus, hypothalamus). In most brain regions, the content of noradrenaline was reduced by cannabinoid drugs (27-66%). For the effects of WIN (2 and 4 mg/kg), an inverse correlation ( r=-0.61, P=0.036) was obtained between the accumulation of dopa and the content of noradrenaline in the hypothalamus. The stimulatory effect on dopa accumulation induced by THC was antagonized by the selective CB(1) receptor antagonists SR141716A and AM 281 (10 mg/kg). In contrast, THC and WIN decreased the synthesis of dopa/dopamine in the corpus striatum (16-37%) and that of 5-HTP/5-HT (20-35%) in brain regions enriched in 5-HT (e.g., cerebral cortex and hippocampus). These inhibitory effects of THC and WIN were also antagonized by AM 281 and/or SR141716A. THC did not alter the content of 5-HT or dopamine in the brain. The effects may be related to the activation of presynaptic inhibitory cannabinoid CB(1) receptors located on the neurones themselves (serotonin) and on facilitatory (dopamine) and inhibitory interneurones (noradrenaline).

Indexed as

AnimalsBenzoxazinesBrainCalcium Channel BlockersCannabinoidsDopamineMaleMorpholinesNaphthalenesNorepinephrineRatsRats, Sprague-DawleyReceptor, Cannabinoid, CB1SerotoninTryptophan HydroxylaseTyrosine(3R)-((2,3-dihydro-5-methyl-3-((4-morpholinyl)methyl)pyrrolo-(1,2,3-de)-1,4-benzoxazin-6-yl)(1-naphthalenyl))methanoneBenzoxazinesCalcium Channel BlockersCannabinoidsDopamineMorpholinesNaphthalenesNorepinephrineReceptor, Cannabinoid, CB1SerotoninTryptophan HydroxylaseTyrosine

Identifiers

PMID15064921
OpenAlexW1991763715

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.