Evidence map›Paper›PMID 27018938›Full record

ArticleJournal of affective disorders2016

Reduced hippocampus volume and memory performance in bipolar disorder patients carrying the BDNF val66met met allele.

Bo Cao, Isabelle E Bauer, Ajaykumar N Sharma, Benson Mwangi, Thomas Frazier, Luca Lavagnino, Giovana B Zunta-Soares, Consuelo Walss-Bass, David C Glahn, Flavio Kapczinski and 2 more

Abstract read
In one paragraph

Article in Journal of affective disorders, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed, 4 pooled it
–field-weighted citation impact
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

38 citing papers in PubMed, 4 syntheses or guidelines pooled it.

  1. Pooled it
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  4. Pooled it
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  13. Genes · 2024
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  18. TPPU Downregulates Oxidative Stress Damage and Induces BDNF Expression in PC-12 Cells.Computational and mathematical methods in medicine · 2022
    Article
  19. Article
  20. Observational
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

12 authors.

Bo CaoDepartment of Psychiatry and Behavioral Sciences, The University of Texas Health Science Center at Houston, Houston, TX, United States. Electronic address: CloudBoCao@gmail.com.
Isabelle E BauerDepartment of Psychiatry and Behavioral Sciences, The University of Texas Health Science Center at Houston, Houston, TX, United States.
Ajaykumar N SharmaDepartment of Psychiatry and Behavioral Sciences, The University of Texas Health Science Center at Houston, Houston, TX, United States.
Benson MwangiDepartment of Psychiatry and Behavioral Sciences, The University of Texas Health Science Center at Houston, Houston, TX, United States.
Thomas FrazierThe Center for Pediatric Behavioral Health and Center for Autism, Cleveland Clinic, Cleveland, OH, United States.
Luca LavagninoDepartment of Psychiatry and Behavioral Sciences, The University of Texas Health Science Center at Houston, Houston, TX, United States.
Giovana B Zunta-SoaresDepartment of Psychiatry and Behavioral Sciences, The University of Texas Health Science Center at Houston, Houston, TX, United States.
Consuelo Walss-BassDepartment of Psychiatry and Behavioral Sciences, The University of Texas Health Science Center at Houston, Houston, TX, United States.
David C GlahnThe Olin Neuropsychiatry Research Center, Institute of Living, and Department of Psychiatry, Yale University School of Medicine, CT, United States.
Flavio KapczinskiDepartment of Psychiatry, Universidade Federal Rio Grande do Sul, Rua Ramiro Barcelos, 2350, 90035-903 Rio Grande do Sul, Brazil.
David A NielsenDepartment of Psychiatry and Behavioral Sciences, Michael E. DeBakey V.A. Medical Center, Baylor College of Medicine, Houston, TX, United States.
Jair C SoaresDepartment of Psychiatry and Behavioral Sciences, The University of Texas Health Science Center at Houston, Houston, TX, United States.

Funding

Yale Clinical and Translational Science Award (U Component)UL1TR001863 · NCATS · YALE UNIVERSITY · PI John H. Krystal, LUCILA OHNO-MACHADO · 2016 to 2026
$102.9M
Tiagabine and Disulfiram for Cocaine DependenceP50DA018197 · NIDA · YALE UNIVERSITY · PI KOSTEN, THOMAS RICHARD · 2004 to 2013
$12.6M
Searching for Endophenotypes of Bipolar DisorderR01MH085667 · NIMH · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI SOARES, JAIR C · 2012 to 2016
$3.0M
Innovative Multidisciplinary Education: The Statistical Genetics of AddictionR25DA026120 · NIDA · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI CHANG, SHINE, SHETE, SANJAY · 2010 to 2014
$1.5M
NCATS NIH HHS UL1 TR001863NIDA NIH HHS P50 DA018197NIDA NIH HHS R25 DA026120NIMH NIH HHS R01 MH085667
6 · The paper itself

Abstract

backgroundPrevious studies investigated the impact of brain-derived neurotrophic factor (BDNF) val66met (rs6265) on hippocampus volumes and neurocognition in bipolar disorders (BD), but the results were not consistent. This study aimed to investigate the effect of BDNF polymorphism on hippocampus volumes and memory performance in well-characterized adult populations diagnosed with type I BD (BD-I) and major depressive disorder (MDD) compared with healthy controls (HC).

methods48 BD-I patients, 33 MDD patients and 60 HC were genotyped for BDNF rs6265 using DNA isolated from white blood cells. Individuals with val/met and met/met genotypes were grouped as met carriers and compared to those with the val/val. Brain segmentations were obtained from structural magnetic resonance imaging (MRI) using the Freesurfer. Memory performance was assessed with the California Verbal Learning Task (CVLT).

resultsWe found a significant diagnosis effect and marginal interaction between diagnosis and BDNF genotype group for both hippocampus volumes and memory performance. BDNF met allele carrier BD patients had smaller hippocampus volumes and reduced performance on multiple CVLT scores compared to MDD patients and HC.

conclusionsWe provide strong evidence for the BDNF val66met polymorphism as a putative biological signature for the neuroanatomical and cognitive abnormalities commonly observed in BD patients.

Indexed as

AdultAllelesBipolar DisorderBrain-Derived Neurotrophic FactorFemaleGenotypeHippocampusHumansMagnetic Resonance ImagingMajor Depressive DisorderMaleMemory DisordersOrgan SizePolymorphism, Single NucleotideBDNF protein, humanBrain-Derived Neurotrophic FactorBDNF val66metBipolarBipolar disorder type IHippocampusMajor depressive disorderMemoryMRIPolymorphismVolume

Identifiers

PMID27018938
PMCPMC5214589

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.