Evidence map›Paper›PMID 34650209›Full record

ArticleMolecular psychiatry2022

Effect of BDNF Val66Met polymorphism on hippocampal subfields in multiple sclerosis patients.

Ermelinda De Meo, Emilio Portaccio, Elio Prestipino, Benedetta Nacmias, Silvia Bagnoli, Lorenzo Razzolini, Luisa Pastò, Claudia Niccolai, Benedetta Goretti, Angelo Bellinvia and 7 more

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In one paragraph

Article in Molecular psychiatry, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 19 citations in OpenAlex.

  1. Pooled it
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  5. Interaction between miR-142-3p andInternational journal of molecular sciences · 2024
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  14. Frontiers in neurology · 2022
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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

17 authors at 5 institutions in 1 country.

Ermelinda De MeoNeuroimaging Research Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Milan, Italy. demeo.ermelinda@hsr.it.ORCID http://orcid.org/0000-0001-5531-1111
Emilio PortaccioDepartment NEUROFARBA, Section Neurosciences, University of Florence, Florence, Italy.ORCID http://orcid.org/0000-0002-9662-1762
Elio PrestipinoDepartment NEUROFARBA, Section Neurosciences, University of Florence, Florence, Italy.
Benedetta NacmiasDepartment NEUROFARBA, Section Neurosciences, University of Florence, Florence, Italy.ORCID http://orcid.org/0000-0001-9338-9040
Silvia BagnoliDepartment NEUROFARBA, Section Neurosciences, University of Florence, Florence, Italy.
Lorenzo RazzoliniAzienda Ospedaliero-Universitaria Careggi, Florence, Italy.
Luisa PastòAzienda Ospedaliero-Universitaria Careggi, Florence, Italy.
Claudia NiccolaiIRCCS Fondazione Don Carlo Gnocchi, Florence, Italy.
Benedetta GorettiDepartment NEUROFARBA, Section Neurosciences, University of Florence, Florence, Italy.
Angelo BellinviaAzienda Ospedaliero-Universitaria Careggi, Florence, Italy.
Mattia FondericoAzienda Ospedaliero-Universitaria Careggi, Florence, Italy.
Antonio GiorgioDepartment of Medicine, Surgery and Neuroscience, University of Siena, Siena, Italy.
Maria Laura StromilloDepartment of Medicine, Surgery and Neuroscience, University of Siena, Siena, Italy.
Massimo FilippiNeuroimaging Research Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Milan, Italy.ORCID http://orcid.org/0000-0002-5485-0479
Sandro SorbiDepartment NEUROFARBA, Section Neurosciences, University of Florence, Florence, Italy.
Nicola De StefanoDepartment of Medicine, Surgery and Neuroscience, University of Siena, Siena, Italy.
Maria Pia AmatoDepartment NEUROFARBA, Section Neurosciences, University of Florence, Florence, Italy.
Don Carlo Gnocchi Foundation · ITAzienda Ospedaliero-Universitaria Careggi · ITUniversity of Florence · ITUniversity of Siena · ITVita-Salute San Raffaele University · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Brain-derived neurotrophic factor (BDNF) Val66Met polymorphism was shown to strongly affect BDNF function, but its role in modulating gray matter damage in multiple sclerosis (MS) patients is still not clear. Given BDNF relevance on the hippocampus, we aimed to explore BDNF Val66Met polymorphism effect on hippocampal subfield volumes and its role in cognitive functioning in MS patients. Using a 3T scanner, we obtained dual-echo and 3DT1-weighted sequences from 50 MS patients and 15 healthy controls (HC) consecutively enrolled. MS patients also underwent genotype analysis of BDNF, neurological and neuropsychological evaluation. Hippocampal subfields were segmented by using Freesurfer. The BDNF Val66Met polymorphism was found in 22 MS patients (44%). Compared to HC, MS patients had lower volume in: bilateral hippocampus-amygdala transition area (HATA); cornus ammonis (CA)1, granule cell layer of dentate gyrus (GCL-DG), CA4 and CA3 of the left hippocampal head; molecular layer (ML) of the left hippocampal body; presubiculum of right hippocampal body and right fimbria. Compared to BDNF Val66Val, Val66Met MS patients had higher volume in bilateral hippocampal tail; CA1, ML, CA3, CA4, and GCL-DG of left hippocampal head; CA1, ML, and CA3 of the left hippocampal body; left HATA and presubiculum of the right hippocampal head. In MS patients, higher lesion burden was associated with lower volume of presubiculum of right hippocampal body; lower volume of left hippocampal tail was associated with worse visuospatial memory performance; lower volume of left hippocampal head with worse performance in semantic fluency. Our findings suggest the BNDF Val66Met polymorphism may have a protective role in MS patients against both hippocampal atrophy and cognitive impairment. BDNF genotype might be a potential biomarker for predicting cognitive prognosis, and an interesting target to study for neuroprotective strategies.

Indexed as

Cognitive DysfunctionMultiple SclerosisAtrophyBrain-Derived Neurotrophic FactorHippocampusHumansMagnetic Resonance ImagingBDNF protein, humanBrain-Derived Neurotrophic Factor

Identifiers

PMID34650209
OpenAlexW3206156137

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.