Evidence map›Paper›PMID 7582504›Full record

ArticleBritish journal of pharmacology1995

Interaction between a selective 5-HT1A receptor antagonist and an SSRI in vivo: effects on 5-HT cell firing and extracellular 5-HT.

S E Gartside, V Umbers, M Hajós, T Sharp

Open access · bronzeAbstract read
In one paragraph

Article in British journal of pharmacology, 1995. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 62 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
62citing papers in PubMed, 1 pooled it
5.4field-weighted citation impact, top 3% 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

62 citing papers in PubMed, 1 synthesis or guideline pooled it, 311 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. Article
  5. Rebound activation of 5-HT neurons following SSRI discontinuation.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2024
    Article
  6. Article
  7. Mechanisms of SSRI Therapy and Discontinuation.Current topics in behavioral neurosciences · 2024
    Review
  8. Article
  9. Article
  10. Effect of Citalopram on Emotion Processing in Humans: A Combined 5-HTNeuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2018
    Article
  11. Review
  12. Toward a multiscale modeling framework for understanding serotonergic function.Journal of psychopharmacology (Oxford, England) · 2017
    Review
  13. Article
  14. Cerebral 5-HT release correlates with [Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2017
    Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Optogenetics enlightens neuroscience drug discovery.Nature reviews. Drug discovery · 2016
    Review
  20. Article

2 more citing papers are in PubMed but not listed here.

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

4 authors at 1 institution in 1 country.

S E GartsideUniversity of Oxford Department of Clinical Pharmacology, Radcliffe Infirmary, Oxford.
V Umbers
M Hajós
T Sharp
University of Oxford · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

1. The acute inhibitory effect of selective 5-hydroxytryptamine (serotonin) reuptake inhibitors (SSRIs) on 5-HT neuronal activity may offset their ability to increase synaptic 5-HT in the forebrain. 2. Here, we determined the effects of the SSRI, paroxetine, and a novel selective 5-HT1A receptor antagonist, WAY 100635, on 5-HT cell firing in the dorsal raphé nucleus (DRN), and on extracellular 5-HT in both the DRN and the frontal cortex (FCx). Extracellular electrophysiological recording and brain microdialysis were used in parallel experiments, in anaesthetized rats. 3. Paroxetine dose-dependently inhibited the firing of 5-HT neurones in the DRN, with a maximally effective dose of approximately 0.8 mg kg-1, i.v. WAY 100635 (0.1 mg kg-1, i.v.) both reversed the inhibitory effect of paroxetine and, when used as a pretreatment, caused a pronounced shift to the right of the paroxetine dose-response curve. 4. Paroxetine (0.8 mg kg-1, i.v.), doubled extracellular 5-HT in the DRN, but did not alter extracellular 5-HT in the FCx. A higher dose of paroxetine (2.4 mg kg-1, i.v.) did increase extracellular 5-HT in the FCx, but to a lesser extent than in the DRN. Whereas 0.8 mg kg-1, i.v. paroxetine alone had no effect on extracellular 5-HT in the FCx, in rats pretreated with WAY 100635 (0.1 mg kg-1), paroxetine (0.8 mg kg-1, i.v.) markedly increased extracellular 5-HT in the FCx. 5. In conclusion, pretreatment with the selective 5-HT1A receptor antagonist, WAY 100635, blocked the inhibitory effect of paroxetine on 5-HT neuronal activity in the DRN and, at the same time, markedly enhanced the effect of paroxetine on extracellular 5-HT in the FCx. These results may be relevant to recent clinical observations that 5-HT1A receptor antagonists in combination with SSRIs have a rapid onset of antidepressant effect.

Indexed as

AnimalsDose-Response Relationship, DrugDrug InteractionsMaleNeuronsParoxetineProsencephalonRatsRats, Sprague-DawleySelective Serotonin Reuptake InhibitorsSerotoninSerotonin AntagonistsTime FactorsParoxetineSelective Serotonin Reuptake InhibitorsSerotoninSerotonin Antagonists

Identifiers

PMID7582504
PMCPMC1909022
OpenAlexW2092377028

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.