Mapping individual molecular connectomes in Alzheimer's disease.
The 6 matches · 1 of them tie a paragraph to a whole file, not to given lines: a weak match, whose lines are not tinted
- [1] § DATASETS › Gradient tree boosting using XGBoost ↔ Code/Step3_ConnectomeClassification_Run.R, lines 1–61 · score 0.85 · num_class, eval_metric, early_stopping_rounds, softprob, XGBoost, logistic
- [2] § DATASETS › Gradient tree boosting using XGBoost ↔ Code/Step6_ConnectomeAlterationVersusSUVR_Classification_Run.R, lines 1–60 · score 0.74 · eval_metric, early_stopping_rounds, XGBoost, logistic, eta, nfold
- [3] § DATASETS › Examining how the individual molecular connectomes changed across the AD continuum and over time ↔ Code/Step5_ConnectomeAlterationAlnalysis_Longitudinal.m, lines 42–87 · score 0.52 · linear mixed, fitting, fitlme, interaction, connectome alteration, model
- [4] § DATASETS › Association analysis between individual molecular connectomes and the brain's transcriptome ↔ Code/GetGeneSpecificTranscriptionNetwork.m, the whole file · a weak match · score 0.52 · perturbed transcription network, reference transcription network, gene, correlation
- [5] § DATASETS › Constructing individual molecular connectomes ↔ Code/Step1_GetIndividualMolecularConnectome.m, lines 57–77 · score 0.52 · perturbed tau connectome, reference tau connectome, individual molecular connectomes, individual tau connectome, sex, education
- [6] § RESULTS › Individual molecular connectome mapping using longitudinal PET data ↔ Code/Step1_GetIndividualMolecularConnectome.m, lines 79–99 · score 0.51 · perturbed tau connectome, reference tau connectome, individual molecular connectomes, individual tau connectome, longitudinal, sex
Paper
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The authors' code
MATLAB · 99 lines · 6.6 KB · no license · 2 matches
- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
- %%%%%%%%%%%%%%% Step 1: Get Individual Molecular Connectome %%%%%%%%%%%%%%%
- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
- % Here, we use the NULL Tau-PET as an example
- clear;
- clc;
- close all;
- OutputPath = [ pwd, filesep, '..', filesep, 'NullIndividualConnectome' ];
- mkdir( OutputPath );
- load( [ pwd, filesep, '..', filesep, 'NullPETData', filesep, 'Tau.mat' ] );
- Tau.Tau = [ Tau.SUVR_LH, Tau.SUVR_RH ];
- %% Get Included PET Scans
- IncludedScan = find( ( ~isnan( Tau.AmyloidGroup ) )&( ~isnan( Tau.Group ) )&...
- ( ~isnan( Tau.Age ) )&( ~isnan( Tau.Sex ) )&( ~isnan( Tau.Education ) ) );
- IncludedScan_NC_AN = IncludedScan( ( Tau.AmyloidGroup( IncludedScan ) == 0 )&( Tau.Group( IncludedScan ) == 0 ) );
- IncludedScan_NC_AP = IncludedScan( ( Tau.AmyloidGroup( IncludedScan ) == 1 )&( Tau.Group( IncludedScan ) == 0 ) );
- IncludedScan_MCI_AP = IncludedScan( ( Tau.AmyloidGroup( IncludedScan ) == 1 )&( Tau.Group( IncludedScan ) == 1 ) );
- IncludedScan_AD_AP = IncludedScan( ( Tau.AmyloidGroup( IncludedScan ) == 1 )&( Tau.Group( IncludedScan ) == 2 ) );
- IncludedScan_AP = [ IncludedScan_NC_AP; IncludedScan_MCI_AP; IncludedScan_AD_AP ];
- Tau_AP = Tau.Tau( IncludedScan_AP, : );
- Age_AP = Tau.Age( IncludedScan_AP );
- Sex_AP = Tau.Sex( IncludedScan_AP );
- Education_AP = Tau.Education( IncludedScan_AP );
- GroupIndex_AP = [ zeros( numel( IncludedScan_NC_AP ), 1 ); ...
- zeros( numel( IncludedScan_MCI_AP ), 1 ) + 1; ...
- zeros( numel( IncludedScan_AD_AP ), 1 ) + 2 ];
- [ ScanOrder_NC_AN, TimeLag_NC_AN, FirstScanAge_NC_AN ] = GetScanOrder( Tau.RID( IncludedScan_NC_AN ), Tau.ScanDate( IncludedScan_NC_AN ), Tau.Age( IncludedScan_NC_AN ) );
- [ ScanOrder_NC_AP, TimeLag_NC_AP, FirstScanAge_NC_AP ] = GetScanOrder( Tau.RID( IncludedScan_NC_AP ), Tau.ScanDate( IncludedScan_NC_AP ), Tau.Age( IncludedScan_NC_AP ) );
- [ ScanOrder_MCI_AP, TimeLag_MCI_AP, FirstScanAge_MCI_AP ] = GetScanOrder( Tau.RID( IncludedScan_MCI_AP ), Tau.ScanDate( IncludedScan_MCI_AP ), Tau.Age( IncludedScan_MCI_AP ) );
- [ ScanOrder_AD_AP, TimeLag_AD_AP, FirstScanAge_AD_AP ] = GetScanOrder( Tau.RID( IncludedScan_AD_AP ), Tau.ScanDate( IncludedScan_AD_AP ), Tau.Age( IncludedScan_AD_AP ) );
- ScanOrder_AP = [ ScanOrder_NC_AP; ScanOrder_MCI_AP; ScanOrder_AD_AP ];
- TimeLag_AP = [ TimeLag_NC_AP; TimeLag_MCI_AP; TimeLag_AD_AP ];
- FirstScanAge_AP = [ FirstScanAge_NC_AP; FirstScanAge_MCI_AP; FirstScanAge_AD_AP ];
- %% Get Reference Tau Connectome
- IncludedScan_Reference = IncludedScan_NC_AN( ScanOrder_NC_AN == 1 );
- Tau_Reference = Tau.Tau( IncludedScan_Reference, : );
- Age_Reference = Tau.Age( IncludedScan_Reference );
- Sex_Reference = Tau.Sex( IncludedScan_Reference );
- Education_Reference = Tau.Education( IncludedScan_Reference );
- ReferenceTauConnectome = partialcorr( Tau_Reference, [ Age_Reference - mean( Age_Reference ), ...
- Sex_Reference, Education_Reference - mean( Education_Reference ) ] );
- DiagMask = diag( ones( numel( Tau_Reference( 1, : ) ), 1 ) );
- save( [ OutputPath, filesep, 'ReferenceTauConnectome.mat' ], 'IncludedScan_Reference', 'ReferenceTauConnectome', 'DiagMask' );
- %% Get Individual Tau Connectome
- % These connectome matrices will be used in baseline analysis.
- IndividualTauConnectome_AP = NaN( numel( IncludedScan_AP ), numel( squareform( ReferenceTauConnectome - DiagMask ) ) );
- for Scan = 1:numel( IncludedScan_AP )
- PerturbedTauConnectome = partialcorr( [ Tau_Reference; Tau_AP( Scan, : ) ], ...
- [ [ Age_Reference; Age_AP( Scan ) ] - mean( Age_Reference ), ...
- [ Sex_Reference; Sex_AP( Scan ) ], ...
- [ Education_Reference; Education_AP( Scan ) ] - mean( Education_Reference ) ] );
- IndividualTauConnectome_AP( Scan, : ) = squareform( PerturbedTauConnectome - ReferenceTauConnectome )...
- ./squareform( 1 - ReferenceTauConnectome.^2 )*( numel( IncludedScan_Reference ) - 1 );
- end
- IndividualTauConnectome_NC_AP = IndividualTauConnectome_AP( GroupIndex_AP == 0, : );
- IndividualTauConnectome_MCI_AP = IndividualTauConnectome_AP( GroupIndex_AP == 1, : );
- IndividualTauConnectome_AD_AP = IndividualTauConnectome_AP( GroupIndex_AP == 2, : );
- save( [ OutputPath, filesep, 'IndividualTauConnectome_AP.mat' ], 'IncludedScan_AP', 'IndividualTauConnectome_AP', 'ScanOrder_AP', 'TimeLag_AP', 'GroupIndex_AP' );
- save( [ OutputPath, filesep, 'IndividualTauConnectome_NC_AP.mat' ], 'IncludedScan_NC_AP', 'IndividualTauConnectome_NC_AP', 'ScanOrder_NC_AP', 'TimeLag_NC_AP' );
- save( [ OutputPath, filesep, 'IndividualTauConnectome_MCI_AP.mat' ], 'IncludedScan_MCI_AP', 'IndividualTauConnectome_MCI_AP', 'ScanOrder_MCI_AP', 'TimeLag_MCI_AP' );
- save( [ OutputPath, filesep, 'IndividualTauConnectome_AD_AP.mat' ], 'IncludedScan_AD_AP', 'IndividualTauConnectome_AD_AP', 'ScanOrder_AD_AP', 'TimeLag_AD_AP' );
- %% Get Individual Tau Connectome Using FirstScanAge
- % These connectome matrices will be used in longitudinal analysis.
- IndividualTauConnectome_AP = NaN( numel( IncludedScan_AP ), numel( squareform( ReferenceTauConnectome - DiagMask ) ) );
- for Scan = 1:numel( IncludedScan_AP )
- PerturbedTauConnectome = partialcorr( [ Tau_Reference; Tau_AP( Scan, : ) ], ...
- [ [ Age_Reference; FirstScanAge_AP( Scan ) ] - mean( Age_Reference ), ...
- [ Sex_Reference; Sex_AP( Scan ) ], ...
- [ Education_Reference; Education_AP( Scan ) ] - mean( Education_Reference ) ] );
- IndividualTauConnectome_AP( Scan, : ) = squareform( PerturbedTauConnectome - ReferenceTauConnectome )...
- ./squareform( 1 - ReferenceTauConnectome.^2 )*( numel( IncludedScan_Reference ) - 1 );
- end
- IndividualTauConnectome_NC_AP = IndividualTauConnectome_AP( GroupIndex_AP == 0, : );
- IndividualTauConnectome_MCI_AP = IndividualTauConnectome_AP( GroupIndex_AP == 1, : );
- IndividualTauConnectome_AD_AP = IndividualTauConnectome_AP( GroupIndex_AP == 2, : );
- save( [ OutputPath, filesep, 'IndividualTauConnectomeUsingFirstScanAge_AP.mat' ], 'IncludedScan_AP', 'IndividualTauConnectome_AP', 'ScanOrder_AP', 'TimeLag_AP', 'GroupIndex_AP' );
- save( [ OutputPath, filesep, 'IndividualTauConnectomeUsingFirstScanAge_NC_AP.mat' ], 'IncludedScan_NC_AP', 'IndividualTauConnectome_NC_AP', 'ScanOrder_NC_AP', 'TimeLag_NC_AP' );
- save( [ OutputPath, filesep, 'IndividualTauConnectomeUsingFirstScanAge_MCI_AP.mat' ], 'IncludedScan_MCI_AP', 'IndividualTauConnectome_MCI_AP', 'ScanOrder_MCI_AP', 'TimeLag_MCI_AP' );
- save( [ OutputPath, filesep, 'IndividualTauConnectomeUsingFirstScanAge_AD_AP.mat' ], 'IncludedScan_AD_AP', 'IndividualTauConnectome_AD_AP', 'ScanOrder_AD_AP', 'TimeLag_AD_AP' );
Step1_GetIndividualMolecularConnectome.m at commit c52a91b, no license · at the source
Overview
- Department of Clinical Neuroscience, Division of Neuro, Karolinska Institutet, Solna, Sweden
- Department of Physics, University of Gothenburg, Gothenburg, Sweden
- Coma Science Group, GIGA Consciousness, University of Liege, Liege, Belgium
- Centre du Cerveau2, University Hospital of Liege, Liege, Belgium
- Department of Information Engineering, University of Padua, Padua, Italy
- Department of Neuroimaging, King's College London, Strand, London, UK
- Department of Neurobiology, Division of Clinical Geriatrics, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden
- Theme Inflammation and Aging, Karolinska University Hospital, Solna, Sweden
Abstract
INTRODUCTION: Mapping individual differences is crucial to improve personalized medicine approaches in Alzheimer's disease (AD), which is characterized by strong inter‐individual variability in the accumulation patterns of tau and amyloid beta pathology.
METHODS: We assess the progression of AD across the disease continuum by building individual molecular connectomes using longitudinal positron emission tomography (PET) data.
RESULTS: We demonstrate that these connectomes constitute a unique fingerprint, capable of identifying a single individual from a large group of subjects. Alterations in the connectomes discriminate different diagnostic groups and predict cognitive decline to a higher extent than conventional PET measures. We introduce a novel gene‐specific transcription network analysis that linked individual tau and amyloid connectomes to a common transcriptomic profile of apoptosis, with the tau connectome being specifically related to pyrimidine metabolism, and the amyloid connectome to histone acetylation.
DISCUSSION: Individual molecular connectome mapping provides a novel and sensitive framework to monitor AD progression.
Reproduced under the paper's license (CC BY), from the paper cited above.
Repository
Its files are read in the Code ↔ Paper reader above, with 6 matches between paragraphs and lines of code.
zhileixu/IndividualMolecularConnectomes
c52a91b9918ae12a17520c16cb5119beca0cbe45, 28 June 2024Availability: 1 check, the latest on 30 September 2026: the link answers
- 30 September 2026: the link answers
18 files
- Code/
GetGeneSpecificTranscrip , MATLAB, 17 lines, 1 matchtionNetwork.m - Code/
GetScanOrder.m , MATLAB, 19 lines - Code/
RankSumPermutation.m , MATLAB, 38 lines - Code/
Step1_GetIndividualMolec , MATLAB, 99 lines, 2 matchesularConnectome.m - Code/
Step2_ConnectomeFingerPr , MATLAB, 70 linesinting.m - Code/
Step3_ConnectomeClassifi , MATLAB, 33 linescation_PrepareData.m - Code/
Step3_ConnectomeClassifi , R, 93 lines, 1 matchcation_Run.R - Code/
Step4_ConnectomeAlterati , MATLAB, 70 linesonAnalysis_Baseline.m - Code/
Step5_ConnectomeAlterati , MATLAB, 107 lines, 1 matchonAlnalysis_Longitudinal .m - Code/
Step6_ConnectomeAlterati , MATLAB, 51 linesonVersusSUVR_Classificat ion_PrepareData.m - Code/
Step6_ConnectomeAlterati , R, 161 lines, 1 matchonVersusSUVR_Classificat ion_Run.R - Code/
Step7_ConnectomeAlterati , MATLAB, 60 linesonVersusSUVR_Prediction_ PrepareData.m - Code/
Step7_ConnectomeAlterati , R, 120 linesonVersusSUVR_Prediction_ Run.R - Code/
Step8_ConnectomeTranscri , MATLAB, 53 linesptomeAssociation_Prepare Data.m - Code/
Step8_ConnectomeTranscri , R, 36 linesptomeAssociation_Run.R - Code/
Step9_GSEA.m , MATLAB, 32 lines - Code/
read_annotation.m , MATLAB, 192 lines - README.md, Text, 53 lines
The paper's code and data availability statement is in the Data section.
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Data
Datasets cited
- figshare:6852911, at figshare; found in “DATA AVAILABILITY STATEMENT”
Data availability statement
The ADNI cohort is available through the ADNI data portal (https://
Reproduced under the paper's license (CC BY), from the paper cited above.
Versions
The history of this record: each version stored by the harvester or made by a correction of its authors or of the maintainers of its code, and what changed in its facts. The texts of the paper (its abstract, its availability statements) are not part of it; versions that changed only those are not listed.
Version 1, 30 September 2026: the first record
Recorded: type, language, journal, volume, issue, pages, dates, 11 authors, 5 keywords, 11 MeSH terms, 26 funders, 75 references.
Cite
This paper
Xu, Z., Mijalkov, M., Sun, J., Chang, Y., Sala, A., Volpe, G., Severino, M., Veronese, M., Garcia‐Ptacek, S., Pereira, J. B., & for the Alzheimer's Disease Neuroimaging Initiative. (2026). Mapping individual molecular connectomes in Alzheimer's disease. Alzheimer's & dementia : the journal of the Alzheimer's Association, 22(3), e71310. https://
BibTeX
@article{xu2026mapping,
author = {Xu, Zhilei and Mijalkov, Mite and Sun, Jiawei and Chang, Yu‐Wei and Sala, Arianna and Volpe, Giovanni and Severino, Mario and Veronese, Mattia and Garcia‐Ptacek, Sara and Pereira, Joana B and {for the Alzheimer's Disease Neuroimaging Initiative}},
title = {{Mapping individual molecular connectomes in Alzheimer's disease}},
journal = {Alzheimer's \& dementia : the journal of the Alzheimer's Association},
year = {2026},
month = mar,
volume = {22},
number = {3},
pages = {e71310},
publisher = {Wiley},
issn = {1552-5260},
doi = {10.1002/
url = {https://
pmid = {41888480},
pmcid = {PMC13093537}
}
RIS
TY - JOUR
AU - Xu, Zhilei
AU - Mijalkov, Mite
AU - Sun, Jiawei
AU - Chang, Yu‐Wei
AU - Sala, Arianna
AU - Volpe, Giovanni
AU - Severino, Mario
AU - Veronese, Mattia
AU - Garcia‐Ptacek, Sara
AU - Pereira, Joana B
AU - for the Alzheimer's Disease Neuroimaging Initiative
TI - Mapping individual molecular connectomes in Alzheimer's disease
T2 - Alzheimer's & dementia : the journal of the Alzheimer's Association
J2 - Alzheimers Dement
PY - 2026
DA - 2026/
VL - 22
IS - 3
SP - e71310
SN - 1552-5260
PB - Wiley
DO - 10.1002/
UR - https://
LA - en
ER -
CSL-JSON
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"container-title-short":
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"DOI": "10.1002/
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