Evidence map›Paper›PMID 15037514›Full record

ArticleBritish journal of pharmacology2004

Effect of acute and chronic lamotrigine on basal and stimulated extracellular 5-hydroxytryptamine and dopamine in the hippocampus of the freely moving rat.

Shagufta Ahmad, Leslie J Fowler, Peter S Whitton

Registry-linked trialOpen access · bronzeAbstract readComparative Study
In one paragraph

Article in British journal of pharmacology, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01432821 (Dopaminergic Reactivity In Idiopathic Generalized Epilepsy), which is not on this map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
2.9field-weighted citation impact, top 9% 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.

NCT01432821 nacompletednot on this mapstarted 2011, after this paper: background citation

Dopaminergic Reactivity In Idiopathic Generalized Epilepsy: A "Proof Of Concept" Clinical, Pharmacological And Neurophysiological Study

TypeinterventionalSponsorInstitut National de la Santé Et de la Recherche Médicale, FranceRan2011 to 2014Enrolled31ConditionsIdiopathic Generalized EpilepsyArmsApomorphine (Experimental product)
3 · Its place in the literature

Who cites it

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 44 citations in OpenAlex.

  1. Pooled it
  2. Effect of lamotrigine on cerebral blood flow in patients with idiopathic generalised epilepsy.European journal of nuclear medicine and molecular imaging · 2006
    Trial
  3. Article
  4. Brain targeting stealth lipomers of combined antiepileptic-anti-inflammatory drugs as alternative therapy for conventional anti-Parkinson's.Saudi pharmaceutical journal : SPJ : the official publication of the Saudi Pharmaceutical Society · 2020
    Article
  5. FXR1P is a GSK3β substrate regulating mood and emotion processing.Proceedings of the National Academy of Sciences of the United States of America · 2015
    Article
  6. Article
  7. Review
  8. Effects of topiramate and other anti-glutamatergic drugs on the acute intoxicating actions of ethanol in mice: modulation by genetic strain and stress.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2009
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. 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.

Shagufta AhmadDepartment of Pharmacology, The School of Pharmacy, 29-39 Brunswick Square, London WC1N 1AX.
Leslie J Fowler
Peter S Whitton
Medway School of Pharmacy · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

1. We have studied the effects of acute and chronic treatment with the anticonvulsant lamotrigine (LTG) on basal and stimulated extracellular 5-hydroxytryptamine (5-HT), dopamine (DA) and their metabolites in the hippocampus of freely moving rats using in vivo microdialysis. 2. Acute LTG (10 and 20 mg kg(-1)) decreased extracellular 5-HT, but had no effect on its metabolite 5-hydroxyindoleacetic acid (5-HIAA). Dialysate DA was also decreased by LTG as were its metabolites dihydroxyphenylacetic acid (DOPAC) and homovanillic acid (HVA). When transmitter release was stimulated by either 50 microm veratridine or 100 mm K(+), marked increases in the release of both transmitters occurred, but LTG was entirely without effect on this. 3. In chronic experiments, rats were dialysed after 2, 4, 7, 14 and 21 days of LTG treatment (5 mg kg(-1), twice daily). During this period a progressively different response to the drug was seen. After 2 days, basal extracellular 5-HT was significantly greater in treated rats than control rats. This effect persisted up to 14 days, but by 21 days 5-HT levels had returned to control values. 5-HIAA levels were unaltered and there was no effect of LTG on veratridine or K(+) stimulated 5-HT release. 4. Similarly, DA concentrations significantly increased after 2-7 days of LTG treatment, but returned and remained at basal values thereafter. During the treatment period LTG had no effect on extracellular DOPAC, but HVA followed a similar pattern to its parent transmitter. As with 5-HT, at no time point did LTG have any effect on stimulated DA release. 5. These neurochemical findings observed in these experiments are considered in relation to the use of LTG in bipolar disorder.

Indexed as

AnimalsDopamineDrug Administration ScheduleExtracellular FluidHippocampusLamotrigineMaleRatsRats, WistarSerotoninTriazinesDopamineLamotrigineSerotoninTriazines

Identifiers

PMID15037514
PMCPMC1574927
OpenAlexW2082130374

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.