Evidence map›Paper›PMID 40244880›Full record

ArticleAnnals of clinical and translational neurology2025

A Novel CHMP2B Splicing Variant in Atypical Presentation of Familial Frontotemporal Lobar Degeneration.

Sara Rubio-Guerra, Sara Bernal, David Almenta, Josefina Pérez-Blanco, Valle Camacho, Isabel Sala, Mª Belén Sánchez-Saudinós, Jesús García Castro, Judit Selma-González, Miguel Ángel Santos-Santos and 8 more

Abstract readCase Reports
In one paragraph

Article in Annals of clinical and translational neurology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0cells of the map it votes in
0citing papers in PubMed
–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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

18 authors.

Sara Rubio-GuerraMemory Unit, Department of Neurology, Hospital de la Santa Creu i Sant Pau, Biomedical Research Institute Sant Pau, Barcelona, Spain.ORCID 0000-0001-7652-8029
Sara BernalDepartment of Genetics, Hospital de la Santa Creu i Sant Pau, Biomedical Research Institute Sant Pau, Barcelona, Spain.
David AlmentaDepartment of Psychiatry, Hospital de la Santa Creu i Sant Pau, Biomedical Research Institute Sant pau, Barcelona, Spain.
Josefina Pérez-BlancoDepartment of Psychiatry, Hospital de la Santa Creu i Sant Pau, Biomedical Research Institute Sant pau, Barcelona, Spain.
Valle CamachoDepartment of Nuclear Medicine, Hospital de la Santa Creu i Sant Pau, Biomedical Research Institute Sant Pau, Barcelona, Spain.
Isabel SalaMemory Unit, Department of Neurology, Hospital de la Santa Creu i Sant Pau, Biomedical Research Institute Sant Pau, Barcelona, Spain.
Mª Belén Sánchez-SaudinósMemory Unit, Department of Neurology, Hospital de la Santa Creu i Sant Pau, Biomedical Research Institute Sant Pau, Barcelona, Spain.
Jesús García CastroMemory Unit, Department of Neurology, Hospital de la Santa Creu i Sant Pau, Biomedical Research Institute Sant Pau, Barcelona, Spain.
Judit Selma-GonzálezMemory Unit, Department of Neurology, Hospital de la Santa Creu i Sant Pau, Biomedical Research Institute Sant Pau, Barcelona, Spain.
Miguel Ángel Santos-SantosMemory Unit, Department of Neurology, Hospital de la Santa Creu i Sant Pau, Biomedical Research Institute Sant Pau, Barcelona, Spain.
Álvaro CarbayoCenter for Biomedical Network Research on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid, Spain.ORCID 0000-0001-9282-8603
Janina Turon-SansCenter for Biomedical Network Research on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid, Spain.
Ricard Rojas-GarciaCenter for Biomedical Network Research on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid, Spain.
Daniel AlcoleaMemory Unit, Department of Neurology, Hospital de la Santa Creu i Sant Pau, Biomedical Research Institute Sant Pau, Barcelona, Spain.ORCID 0000-0002-3819-3245
Juan ForteaMemory Unit, Department of Neurology, Hospital de la Santa Creu i Sant Pau, Biomedical Research Institute Sant Pau, Barcelona, Spain.ORCID 0000-0002-1340-638X
Alberto LleóMemory Unit, Department of Neurology, Hospital de la Santa Creu i Sant Pau, Biomedical Research Institute Sant Pau, Barcelona, Spain.
Oriol Dols-IcardoMemory Unit, Department of Neurology, Hospital de la Santa Creu i Sant Pau, Biomedical Research Institute Sant Pau, Barcelona, Spain.ORCID 0000-0003-2656-8748
Ignacio Illán-GalaMemory Unit, Department of Neurology, Hospital de la Santa Creu i Sant Pau, Biomedical Research Institute Sant Pau, Barcelona, Spain.ORCID 0000-0002-5418-2052

Funding

Project 1U19AG024904 · NIA · NORTHERN CALIFORNIA INSTITUTE/RES/EDU · PI Duygu Tosun-Turgut · 2016 to 2026
$226.7M
Alzheimer's Disease Neuroimaging Initiative - SupplementU01AG024904 · NIA · NORTHERN CALIFORNIA INSTITUTE RES &EDUC · PI WEINER, MICHAEL W · 2004 to 2015
$121.0M
DS-ARC: A Remote Digital Cognitive Assessment for Down Syndrome-Associated Alzheimer's DiseaseR01AG081394 · NIA · WASHINGTON UNIVERSITY · PI Jason J Hassenstab · 2023 to 2026
$6.0M
The Role of Inflammation and NGF Dysfunction in the Evolution of Alzheimer Disease Pathology in Down Syndrome-RevisionRF1AG056850 · NIA · UNIVERSITY OF CALIFORNIA-IRVINE · PI BUSCIGLIO, JORGE A, CUELLO, A CLAUDIO · 2018 to 2020
$5.9M
Clinical trials to prevent Alzheimer's Disease in Down SyndromeR61AG066543 · NIA · UNIVERSITY OF SOUTHERN CALIFORNIA · PI RAFII, MICHAEL S · 2019 to 2020
$5.6M
Tau pathology in Down syndrome and Alzheimer'sRF1AG061566 · NIA · UNIVERSITY OF DENVER (COLORADO SEMINARY) · PI GRANHOLM-BENTLEY, ANN-CHARLOTTE ESTHER, MARGITTAI, MARTIN · 2019 to 2019
$3.4M
Bilingual Factors Associated with Cognitive Reserve and Linguistic Resilience in Hispanics with Primary Progressive AphasiaR01AG080470 · NIA · UNIVERSITY OF TEXAS AT AUSTIN · PI Stephanie M Grasso · 2023 to 2026
$2.8M
Biological Correlates of Alzheimer in Down Syndrome.R21AG056974 · NIA · UNIVERSITY OF DENVER (COLORADO SEMINARY) · PI GRANHOLM-BENTLEY, ANN-CHARLOTTE ESTHER · 2017 to 2018
$414k
Alzheimer's Association AACSF-21-850193Alzheimer's Association AACSF-22-972945Alzheimer's Association AARF-22-924456BrightFocus FoundationDepartament de Salut, Generalitat de Catalunya SLT006/17/125Fondation Jérôme Lejeune #202307Fondation Jérôme Lejeune PDC-2023-51Fundación BBVAFundación Española para el Fomento de la Investigación de la Esclerosis Lateral AmiotróficaFundación HNA httpsFundación HNA //www.fundacionhna.es/conocenosFundació Tatiana Pérez de Guzmán el BuenoGlobal Brain Health Institute GBHI ALZ UK-21-720973Horizon 2020 Framework ProgrammeInstituto de Salud Carlos III CM21/00057Instituto de Salud Carlos III CM23/00176Instituto de Salud Carlos III INT19/00016Instituto de Salud Carlos III INT23/00048Instituto de Salud Carlos III JR20/00018Instituto de Salud Carlos III PI18/00435Instituto de Salud Carlos III PI21/00791Instituto de Salud Carlos III PI21/01395Instituto de Salud Carlos III PI22/00611Instituto de Salud Carlos III PI23/00845Instituto de Salud Carlos III PI24/01087NIA NIH HHS R01 AG080470NIA NIH HHS R01 AG081394NIA NIH HHS R21 AG056974NIA NIH HHS R61 AG066543NIA NIH HHS RF1 AG056850NIA NIH HHS RF1 AG061566NIA NIH HHS U01 AG024904NIA NIH HHS U19 AG024904NIH HHS R01AG080470
6 · The paper itself

Abstract

C-truncating variants in the charged multivesicular body protein 2B (CHMP2B) gene are a rare cause of frontotemporal lobar degeneration (FTLD), previously identified only in Denmark, Belgium, and China. We report a novel CHMP2B splice-site variant (c.35-1G>A) associated with familial FTLD in Spain. The cases were two monozygotic male twins who presented at ages 62 and 66 years with a slowly progressive behavioral variant of frontotemporal dementia and a syndrome mimicking dementia with Lewy bodies, respectively. Functional and in silico analyses supported the pathogenicity of this variant. Our findings contribute new insights into the genetic landscape and clinical heterogeneity of FTLD.

Indexed as

Endosomal Sorting Complexes Required for TransportFrontotemporal Lobar DegenerationAgedHumansMaleMiddle AgedPedigreeCHMP2B protein, humanEndosomal Sorting Complexes Required for Transport

Identifiers

PMID40244880
PMCPMC12455870

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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.