Evidence map›Paper›PMID 23979604›Full record

ArticleMolecular psychiatry2014

A rare mutation of CACNA1C in a patient with bipolar disorder, and decreased gene expression associated with a bipolar-associated common SNP of CACNA1C in brain.

E S Gershon, K Grennan, J Busnello, J A Badner, F Ovsiew, S Memon, N Alliey-Rodriguez, J Cooper, B Romanos, C Liu

Open access · greenAbstract readCase Reports
In one paragraph

Article in Molecular psychiatry, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 74 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
74citing papers in PubMed, 1 pooled it
4.8field-weighted citation impact, top 4% 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

74 citing papers in PubMed, 1 synthesis or guideline pooled it, 128 citations in OpenAlex.

  1. Pooled it
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  10. Structure of a polymorphic repeat at themedRxiv : the preprint server for health sciences · 2025
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14 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

10 authors at 3 institutions in 1 country.

E S GershonDepartment of Psychiatry and Behavioral Neuroscience, University of Chicago, Chicago, IL, USA.
K GrennanDepartment of Psychiatry and Behavioral Neuroscience, University of Chicago, Chicago, IL, USA.
J BusnelloDepartment of Psychiatry and Behavioral Neuroscience, University of Chicago, Chicago, IL, USA.
J A BadnerDepartment of Psychiatry and Behavioral Neuroscience, University of Chicago, Chicago, IL, USA.
F OvsiewDepartment of Psychiatry and Behavioral Neuroscience, University of Chicago, Chicago, IL, USA.
S MemonDepartment of Psychiatry and Behavioral Sciences, Northwestern University, Chicago, IL, USA.
N Alliey-RodriguezDepartment of Psychiatry and Behavioral Neuroscience, University of Chicago, Chicago, IL, USA.
J CooperDepartment of Psychiatry and Behavioral Neuroscience, University of Chicago, Chicago, IL, USA.
B RomanosDepartment of Psychiatry, University of Illinois at Chicago, Chicago, IL, USA.
C Liu1] Department of Psychiatry, University of Illinois at Chicago, Chicago, IL, USA [2] The State Key Laboratory of Medical Genetics, Central South University, Changsha, Hunan, China.
University of Chicago · USUniversity of Illinois Chicago · USNorthwestern University · US

Funding

The Genetic and Genomic Study of MicroRNA in Bipolar and SchizophreniaR01MH080425 · NIMH · UNIVERSITY OF CHICAGO · PI LIU, CHUNYU · 2007 to 2010
$2.6M
The Bipolar Genome StudyR01MH094483 · NIMH · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI CRAIG, DAVID W, EDENBERG, HOWARD J · 2012 to 2014
$2.2M
A Human-Specific Gene (G72/G30) in Transgenic MiceR21MH083521 · NIMH · UNIVERSITY OF CHICAGO · PI LIU, CHUNYU · 2008 to 2009
$304k
NIMH NIH HHS 1R01MH080425NIMH NIH HHS 1R01MH094483-01NIMH NIH HHS R01 MH080425NIMH NIH HHS R01 MH094483NIMH NIH HHS R21 MH083521
6 · The paper itself

Abstract

Timothy Syndrome (TS) is caused by very rare exonic mutations of the CACNA1C gene that produce delayed inactivation of Cav1.2 voltage-gated calcium channels during cellular action potentials, with greatly increased influx of calcium into the activated cells. The major clinical feature of this syndrome is a long QT interval that results in cardiac arrhythmias. However, TS also includes cognitive impairment, autism and major developmental delays in many of the patients. We observed the appearance of bipolar disorder (BD) in a patient with a previously reported case of TS, who is one of the very few patients to survive childhood. This is most interesting because the common single-nucleotide polymorphism (SNP) most highly associated with BD is rs1006737, which we show here is a cis-expression quantitative trait locus for CACNA1C in human cerebellum, and the risk allele (A) is associated with decreased expression. To combine the CACNA1C perturbations in the presence of BD in this patient and in patients with the common CACNA1C SNP risk allele, we would propose that either increase or decrease in calcium influx in excitable cells can be associated with BD. In treatment of BD with calcium channel blocking drugs, we would predict better response in patients without the risk allele, because they have increased CACNA1C expression.

Indexed as

AdultAutistic DisorderBipolar DisorderBrainCalcium Channels, L-TypeCerebellumDown-RegulationGene Expression ProfilingGenetic Predisposition to DiseaseHumansLong QT SyndromeMaleMutationParietal LobePolymorphism, Single NucleotideQuantitative Trait LociCACNA1C protein, humanCalcium Channels, L-Type

Identifiers

PMID23979604
PMCPMC4151967
OpenAlexW2009359462

What OpenQuestion holds

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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.