Evidence map›Paper›PMID 22265241›Full record

ArticleBiological psychiatry2012

A polymorphism associated with depressive disorders differentially regulates brain derived neurotrophic factor promoter IV activity.

Benjamin Hing, Scott Davidson, Marrisa Lear, Gerome Breen, John Quinn, Peter McGuffin, Alasdair MacKenzie

Open access · hybridAbstract read
In one paragraph

Article in Biological psychiatry, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed, 1 pooled it
2.2field-weighted citation impact, top 12% 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

36 citing papers in PubMed, 1 synthesis or guideline pooled it, 56 citations in OpenAlex.

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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

7 authors at 3 institutions in 1 country.

Benjamin HingSchool of Medical Sciences, Institute of Medical Sciences, Foresterhill, University of Aberdeen, Scotland, United Kingdom.
Scott Davidson
Marrisa Lear
Gerome Breen
John Quinn
Peter McGuffin
Alasdair MacKenzie
University of Aberdeen · GBKing's College London · GBUniversity of Liverpool · GB

Funding

Biotechnology and Biological Sciences Research Council BB/D004659/1Medical Research Council G0701003Wellcome TrustWellcome Trust 080980/Z/06/Z
6 · The paper itself

Abstract

backgroundChanges in brain derived neurotrophic factor (BDNF) expression have been associated with mood disorders and cognitive dysfunction. Transgenic models that overexpress or underexpress BDNF demonstrate similar deficits in cognition and mood. We explored the hypothesis that BDNF expression is controlled by balancing the activity of BDNF promoter IV (BP4) with a negative regulatory region containing a polymorphism associated with cognitive dysfunction and mood disorders.

methodsWe used comparative genomics, transgenic mouse production, and magnetofection of primary neurons with luciferase reporters and signal transduction agonist treatments to identify novel polymorphic cis-regulatory regions that control BP4 activity.

resultsWe show that BP4 is active in the hippocampus, the cortex, and the amygdala and responds strongly to stimuli such as potassium chloride, lithium chloride, and protein kinase C agonists. We also identified a highly conserved sequence 21 kilobase 5' of BP4 that we called BE5.2, which contains rs12273363, a polymorphism associated with decreased BDNF expression, mood disorders, and cognitive decline. BE5.2 modulated the ability of BP4 to respond to different stimuli. Intriguingly, the rarer disease associated allele, BE5.2(C), acted as a significantly stronger repressor of BP4 activity than the more common BE5.2(T) allele.

conclusionsThis study shows that the C allele of rs12273363, which is associated with mood disorder, modulates BP4 activity in an allele-specific manner following cell depolarization or the combined activity of protein kinase A and protein kinase C pathways. The relevance of these findings to the role of BDNF misexpression in mood disorders and cognitive decline is discussed.

Indexed as

AllelesAmygdalaAnimalsBrain-Derived Neurotrophic FactorCerebral CortexColforsinDepressive DisorderGene Expression RegulationGenomicsHippocampusHumansLithium ChlorideMiceMice, TransgenicPhorbol EstersPolymorphism, Single NucleotideBrain-Derived Neurotrophic FactorColforsinLithium Chloridephorbol-12-myristatePhorbol EstersPotassium ChlorideProtein Kinase C

Identifiers

PMID22265241
PMCPMC3712170
OpenAlexW2161985252

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.