Evidence map›Paper›PMID 41491101›Full record

ArticleNature medicine2026

A minimally invasive dried blood spot biomarker test for the detection of Alzheimer's disease pathology.

Hanna Huber, Laia Montoliu-Gaya, Wagner S Brum, Jakub Vávra, Yara Yakoub, Haley Weninger, Luisa Sophie Braun-Wohlfahrt, Joel Simrén, Mercé Boada, Agustín Ruiz and 38 more

Abstract read
In one paragraph

Article in Nature medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing 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

16 citing papers in PubMed.

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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

48 authors.

Hanna Huber *Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, The Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden.ORCID http://orcid.org/0009-0004-3080-6870
Laia Montoliu-Gaya *Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, The Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden.ORCID http://orcid.org/0000-0001-7684-6318
Wagner S Brum *Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, The Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden.ORCID http://orcid.org/0000-0002-9777-0559
Jakub VávraDepartment of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, The Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden.
Yara YakoubDepartment of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, The Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden.
Haley WeningerDepartment of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, The Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden.
Luisa Sophie Braun-WohlfahrtDepartment of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, The Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden.
Joel SimrénDepartment of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, The Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden.
Mercé BoadaAce Alzheimer Center Barcelona-Universitat Internacional de Catalunya, Barcelona, Spain.ORCID http://orcid.org/0000-0003-2617-3009
Agustín RuizAce Alzheimer Center Barcelona-Universitat Internacional de Catalunya, Barcelona, Spain.ORCID http://orcid.org/0000-0003-2633-2495
Amanda CanoAce Alzheimer Center Barcelona-Universitat Internacional de Catalunya, Barcelona, Spain.
Adelina OrellanaAce Alzheimer Center Barcelona-Universitat Internacional de Catalunya, Barcelona, Spain.
Sergi ValeroAce Alzheimer Center Barcelona-Universitat Internacional de Catalunya, Barcelona, Spain.
Laia CañadaAce Alzheimer Center Barcelona-Universitat Internacional de Catalunya, Barcelona, Spain.
Natalia TantinyaAce Alzheimer Center Barcelona-Universitat Internacional de Catalunya, Barcelona, Spain.
Ana Belen NogalesAce Alzheimer Center Barcelona-Universitat Internacional de Catalunya, Barcelona, Spain.
Pilar Sanz-CartagenaAce Alzheimer Center Barcelona-Universitat Internacional de Catalunya, Barcelona, Spain.
Anna DittrichDepartment of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, The Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden.ORCID http://orcid.org/0000-0002-5168-2975
Ingmar SkoogDepartment of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, The Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden.
Millie Sander-LongCollege of Medicine and Health, University of Exeter, Exeter, UK.
Clive BallardCollege of Medicine and Health, University of Exeter, Exeter, UK.ORCID http://orcid.org/0000-0003-0022-5632
Megan RichardsCollege of Medicine and Health, University of Exeter, Exeter, UK.
Mary O'LearyCollege of Medicine and Health, University of Exeter, Exeter, UK.
Frederikke Kragh ClemmensenDanish Dementia Research Centre, Department of Neurology, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark.ORCID http://orcid.org/0000-0001-7374-2919
Hannah H D WandallDanish Dementia Research Centre, Department of Neurology, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark.
Daniele AltomareDepartment of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy.
Valentina CantoniDepartment of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy.
Erik StomrudClinical Memory Research Unit, Department of Clinical Sciences Malmö, Lund University, Lund, Sweden.
Sebastian PalmqvistClinical Memory Research Unit, Department of Clinical Sciences Malmö, Lund University, Lund, Sweden.ORCID http://orcid.org/0000-0002-9267-1930
Alberto LleoSant Pau Memory Unit, Department of Neurology, Biomedical Research Institute Sant Pau, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.ORCID http://orcid.org/0000-0002-2568-5478
Daniel AlcoleaSant Pau Memory Unit, Department of Neurology, Biomedical Research Institute Sant Pau, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.ORCID http://orcid.org/0000-0002-3819-3245
Maria Carmona IraguiSant Pau Memory Unit, Department of Neurology, Biomedical Research Institute Sant Pau, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.
Aida Sanjuan HernandezSant Pau Memory Unit, Department of Neurology, Biomedical Research Institute Sant Pau, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.
Bessy BenejamSant Pau Memory Unit, Department of Neurology, Biomedical Research Institute Sant Pau, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.
Laura Videla ToroSant Pau Memory Unit, Department of Neurology, Biomedical Research Institute Sant Pau, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.ORCID http://orcid.org/0000-0002-9748-8465
Alpana SinghBanner Sun Health Research Institute, Sun City, AZ, USA.
Marisa N DenkingerBanner Sun Health Research Institute, Sun City, AZ, USA.
Anja Hviid SimonsenDanish Dementia Research Centre, Department of Neurology, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark.ORCID http://orcid.org/0000-0002-5461-162X
Silke KernDepartment of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, The Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden.
Anne CorbettCollege of Medicine and Health, University of Exeter, Exeter, UK.
Juan ForteaSant Pau Memory Unit, Department of Neurology, Biomedical Research Institute Sant Pau, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.ORCID http://orcid.org/0000-0002-1340-638X
Lee HonigbergALZpath, Inc., Carlsbad, CA, USA.ORCID http://orcid.org/0000-0003-0996-1062
Barbara BorroniDepartment of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy.ORCID http://orcid.org/0000-0001-9340-9814
Oskar HanssonClinical Memory Research Unit, Department of Clinical Sciences Malmö, Lund University, Lund, Sweden.ORCID http://orcid.org/0000-0001-8467-7286
Xavier MoratóAce Alzheimer Center Barcelona-Universitat Internacional de Catalunya, Barcelona, Spain.
Kaj BlennowDepartment of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, The Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden.ORCID http://orcid.org/0000-0002-1890-4193
Henrik ZetterbergDepartment of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, The Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden.ORCID http://orcid.org/0000-0003-3930-4354
Nicholas J AshtonDepartment of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, The Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden. Nicholas.Ashton@Bannerhealth.com.ORCID http://orcid.org/0000-0002-3579-8804

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Blood biomarkers have emerged as accurate tools for detecting Alzheimer's disease (AD) pathology, offering a minimally invasive alternative to traditional diagnostic methods such as imaging and cerebrospinal fluid (CSF) analysis. Yet, the logistics surrounding venipuncture for blood collection, although considerably simpler than the acquisition of imaging and CSF, require precise processing and storage specific to AD biomarkers that are still guided by medical personnel. Consequently, limitations in their widescale use in research and broader clinical implementation exist. The DROP-AD project investigates the potential of dried plasma spot (DPS) and dried blood spot (DBS) analysis, derived from capillary blood, for detecting AD biomarkers, including phosphorylated tau at amino acid 217 (p-tau217), glial fibrillary acidic protein and neurofilament light. Here, 337 participants from 7 centers were included, with 304 participants providing paired capillary DPS or DBS and venous plasma samples. We observed strong correlations between DPS p-tau217 and venous plasma p-tau217 (r

Indexed as

Alzheimer DiseaseBiomarkersDried Blood Spot TestingAgedAged, 80 and overFemaleGlial Fibrillary Acidic ProteinHumansMaleMiddle AgedNeurofilament ProteinsPhosphorylationtau ProteinsBiomarkersGlial Fibrillary Acidic ProteinMAPT protein, humanneurofilament protein LNeurofilament Proteinstau Proteins

Identifiers

PMID41491101
PMCPMC12920126

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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.