Evidence map›Paper›PMID 27277475›Full record

ArticleEuropean archives of psychiatry and clinical neuroscience2017

The 5-HTTLPR and BDNF polymorphisms moderate the association between uncinate fasciculus connectivity and antidepressants treatment response in major depression.

Erica L Tatham, Geoff B C Hall, Darren Clark, Jane Foster, Rajamannar Ramasubbu

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Article in European archives of psychiatry and clinical neuroscience, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 3 pooled it
2.0field-weighted citation impact, top 14% 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

15 citing papers in PubMed, 3 syntheses or guidelines pooled it, 55 citations in OpenAlex.

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  6. A review of diffusion MRI in mood disorders: mechanisms and predictors of treatment response.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2024
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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

5 authors at 2 institutions in 1 country.

Erica L TathamMcMaster Integrative Neuroscience Discovery and Study, McMaster University, Hamilton, ON, Canada.
Geoff B C HallDepartment of Psychology, Neuroscience and Behaviour, McMaster University, Hamilton, ON, Canada.
Darren ClarkDepartment of Psychiatry and Clinical Neurosciences, Mathison Centre for Mental Health Research and Education, University of Calgary, TRW Building, Room 4D64, 3280 Hospital Drive NW, Calgary, AB, T2N4Z6, Canada.
Jane FosterDepartment of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, ON, Canada.
Rajamannar RamasubbuDepartment of Psychiatry and Clinical Neurosciences, Mathison Centre for Mental Health Research and Education, University of Calgary, TRW Building, Room 4D64, 3280 Hospital Drive NW, Calgary, AB, T2N4Z6, Canada. rramasub@ucalgary.ca.
McMaster University · CAUniversity of Calgary · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Symptom improvement in depression due to antidepressant treatment is highly variable and clinically unpredictable. Linking neuronal connectivity and genetic risk factors in predicting antidepressant response has clinical implications. Our investigation assessed whether indices of white matter integrity, serotonin transporter-linked polymorphism (5-HTTLPR) and brain-derived neurotrophic factor (BDNF) val66met polymorphism predicted magnitude of depression symptom change following antidepressant treatment. Fractional anisotropy (FA) was used as an indicator of white matter integrity and was assessed in the uncinate fasciculus and superior longitudinal fasciculus using tract-based spatial statistics (TBSS) and probabilistic tractography. Forty-six medication-free patients with major depressive disorder participated in a diffusion tensor imaging scan prior to completing an 8-week treatment regime with citalopram or quetiapine XR. Indexed improvements in Hamilton Depression Rating Scale score from baseline to 8-week endpoint were used as an indicator of depression improvement. Carriers of the BDNF met allele exhibited lower FA values in the left uncinate fasciculus relative to val/val individuals [F(1, 40) = 7.314, p = 0.009]. Probabilistic tractography identified that higher FA in the left uncinate fasciculus predicted percent change in depression severity, with BDNF moderating this association [F(3, 30) = 3.923, p = 0.018]. An interaction between FA in the right uncinate fasciculus and 5-HTTLPR also predicted percent change in depression severity [F(5, 25) = 5.315, p = 0.002]. Uncorrected TBSS results revealed significantly higher FA in hippocampal portions of the cingulum bundle in responders compared to non-responders (p = 0.016). The predictive value of prefrontal and amygdala/hippocampal WM connectivity on antidepressant treatment response may be influenced by 5-HTTLPR and BDNF polymorphisms in MDD.

Indexed as

Major Depressive DisorderOutcome Assessment, Health CareAdultAntipsychotic AgentsBrain-Derived Neurotrophic FactorCitalopramDiffusion Tensor ImagingFemaleHumansMaleMiddle AgedQuetiapine FumarateSelective Serotonin Reuptake InhibitorsSerotonin Plasma Membrane Transport ProteinsYoung AdultAntipsychotic AgentsBDNF protein, humanBrain-Derived Neurotrophic FactorCitalopramQuetiapine FumarateSelective Serotonin Reuptake InhibitorsSerotonin Plasma Membrane Transport ProteinsSLC6A4 protein, human5-HTTLPRBDNFDTIMajor depressive disorderTreatment response

Identifiers

PMID27277475
OpenAlexW2410342480

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.