Evidence map›Paper›PMID 19103464›Full record

ArticleJournal of affective disorders2009

Decreased muscarinic receptor binding in the frontal cortex of bipolar disorder and major depressive disorder subjects.

A S Gibbons, E Scarr, C McLean, S Sundram, B Dean

Abstract read
In one paragraph

Article in Journal of affective disorders, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed, 2 pooled it
3.0field-weighted citation impact, top 8% 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

46 citing papers in PubMed, 2 syntheses or guidelines pooled it, 94 citations in OpenAlex.

  1. The effect of scopolamine on memory and attention: a systematic review and meta-analysis.European psychiatry : the journal of the Association of European Psychiatrists · 2025
    Pooled it
  2. Pooled it
  3. Trial
  4. Article
  5. Mechanisms of Baishao () and Gancao () on major depressive disorder: network pharmacology and o validation.Journal of traditional Chinese medicine = Chung i tsa chih ying wen pan · 2025
    Article
  6. Article
  7. Review
  8. Review
  9. Review
  10. Review
  11. Article
  12. Review
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Control of Brain State Transitions with a Photoswitchable Muscarinic Agonist.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2021
    Article
  19. Inflammation as a Mechanism of Bipolar Disorder Neuroprogression.Current topics in behavioral neurosciences · 2021
    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

5 authors at 4 institutions in 1 country.

A S GibbonsRebecca L. Cooper Research Laboratories, Mental Health Research Institute of Victoria, Parkville, Victoria, Australia. a.gibbons@mhri.edu.au
E Scarr
C McLean
S Sundram
B Dean
University of Melbourne · AUMental Health Research Institute · AUNorthern Health · AUThe Alfred Hospital · AU

Funding

Schizophrenia: Molecular Markers of Disease ProgressionR01MH069696 · NIMH · SCRIPPS RESEARCH INSTITUTE, THE · PI THOMAS, ELIZABETH A · 2004 to 2008
$1.5M
NIMH NIH HHS R01 MH069696NIMH NIH HHS R01 MH069696-01
6 · The paper itself

Abstract

backgroundDysfunction of the cholinergic muscarinic receptors has been implicated in the pathology of bipolar disorder and major depressive disorder. However, there is conflicting evidence regarding the association between individual muscarinic receptors and the two disorders.

methodsWe used the muscarinic receptor selective radioligands [3H]pirenzepine, [3H]AFDX-384 and [3H]4-DAMP to measure the levels of muscarinic(1) (CHRM1) and muscarinic(4) (CHRM4) receptors, muscarinic(2) (CHRM2) and muscarinic(4) (CHRM4) receptors and muscarinic(3) (CHRM3) receptor, respectively. Radioligand binding was measured in Brodmann's area (BA) 10 of the rostral prefrontal cortex, BA 46 of the dorsolateral prefrontal cortex and BA 40 of the parietal cortex in the post-mortem CNS from subjects with bipolar disorder or major depressive disorder and control subjects.

results[3H]AFDX-384 binding was decreased in BA 46 in both bipolar disorder (p<0.01) and major depressive disorder (p<0.05). [3H]4-DAMP binding was decreased in BA 10 in bipolar disorder (p<0.05) but not major depressive disorder (p>0.05). [3H]AFDX-384 and [3H]4-DAMP binding were unaltered in any other cortical region examined for either disorder (p>0.05). [3H]pirenzepine binding was not significantly altered in either disorder in any cortical region examined (p>0.05). LIMITATIONS: 9 bipolar disorder, 9 major depressive disorder and 19 control subjects were used in the study.

conclusionOur data is consistent with previously published data implicating a role for CHRM2 receptors in the pathology of bipolar and major depressive disorder. The demonstration of a novel association between decreased CHRM3 receptor expression and bipolar disorder suggests bipolar and major depressive disorder differs in the underlying nature of their cholinergic dysfunction.

Indexed as

AdultAgedAntipsychotic AgentsBipolar DisorderFemaleFrontal LobeHumansMajor Depressive DisorderMaleMiddle AgedReceptors, MuscarinicReceptors, NicotinicSuicide, AttemptedYoung AdultAntipsychotic AgentsCHRNA1 protein, humanCHRNA2 protein, humanReceptors, MuscarinicReceptors, Nicotinic

Identifiers

PMID19103464
PMCPMC2724602
OpenAlexW2088688801

What OpenQuestion holds

Textmetadata
LicenceTDM
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.