Evidence map›Paper›PMID 18205001›Full record

ArticleEuropean journal of clinical pharmacology2008

Further evidence for the association between 5-HT2C receptor gene polymorphisms and extrapyramidal side effects in male schizophrenic patients.

Arzu Gunes, Marja-Liisa Dahl, Edoardo Spina, Maria Gabriella Scordo

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Article in European journal of clinical pharmacology, 2008. 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
4.3field-weighted citation impact, top 6% 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, 63 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Biomedicines · 2022
    Article
  5. Article
  6. Review
  7. International journal of molecular sciences · 2020
    Article
  8. Association of SerotoninFrontiers in psychiatry · 2019
    Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Review
  14. Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. The promise and reality of pharmacogenetics in psychiatry.The Psychiatric clinics of North America · 2010
    Review
  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

4 authors at 2 institutions in 2 countries.

Arzu GunesDepartment of Medical Sciences, Clinical Pharmacology, Uppsala University Hospital, SE-75185, Uppsala, Sweden.
Marja-Liisa Dahl
Edoardo Spina
Maria Gabriella Scordo
Uppsala University Hospital · SECentro Neurolesi Bonino Pulejo · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

rationaleAntipsychotic-induced extrapyramidal side effects (EPS) are still a major problem in the treatment of schizophrenia. Serotonin 2C receptors (5-HT(2C)) have regulatory effects on dopaminergic pathways in brain regions involved with EPS. Polymorphisms in the 5-HT(2C) gene (HTR2C) have been suggested to be associated with the risk of developing EPS.

objectiveOur purpose was to evaluate the impact of polymorphisms in the HTR2C gene on the occurrence of EPS in male schizophrenic patients.

methodsNinety-nine male Caucasian chronic schizophrenic patients on long-term treatment with classical antipsychotics were genotyped for the -997 G/A, -759 C/T, -697 G/C and Cys23Ser polymorphisms of HTR2C. EPS (dystonia, parkinsonism, tardive dyskinesia) were assessed by the Simpson-Angus Scale and the Abnormal Involuntary Movement Scale. Fifty-one patients had current or previous history of EPS, whereas 48 patients had no symptoms or history of EPS. To rule out a possible association between HTR2C polymorphisms and schizophrenia, 112 healthy male volunteers were also genotyped.

resultsAllele frequencies of -997A, -759T and -697C did not differ between the groups, whereas patients with EPS had a significantly (p = 0.025) higher frequency of the 23Ser allele (0.29) than did patients without EPS (0.15) or healthy volunteers (0.13). A similar trend was observed for a haplotype including the -997G, -759C, -697C and 23Ser alleles (p = 0.04).

conclusionsResults confirm previously reported associations between the HTR2C 23Ser allele and EPS occurrence and suggest the novel finding of an HTR2C haplotype association with EPS in male chronic schizophrenic patients.

Indexed as

Polymorphism, Single NucleotideAdultAgedAntipsychotic AgentsBasal Ganglia DiseasesGenotypeHumansMaleMiddle AgedReceptor, Serotonin, 5-HT2CSchizophreniaAntipsychotic AgentsReceptor, Serotonin, 5-HT2C

Identifiers

PMID18205001
OpenAlexW1971148104

What OpenQuestion holds

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Registered trials

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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.