CNS Open Data
Latest UpdatesOpen DatasetsClinical TrialsResearch GuidesTrend ReportsGlossaryData SourcesAbout
CNS Open Data— Open Science Portal for Central Nervous System Research|Research Guides|Trend Reports|Glossary|Ranking|Open Datasets|About|Privacy Policy
AlzforumOpenNeuroDANDI ArchiveAgora (AMP-AD)
Back to Research Trend Reports
2026 Q1 Comprehensive DigestPublished: 2026-03-01

State of CNS Open Data 2026 Q1: Spatial Multi-Omics Expansion & Blood Biomarker Standardization

Cross-repository quantitative synthesis across OpenNeuro, DANDI, Allen Brain Map, Agora, and PubMed/Europe PMC

Executive Summary

During the first quarter of 2026, open-access central nervous system (CNS) repositories experienced a decisive structural shift toward multimodal integration. Rather than isolated single-modality releases, newly indexed datasets increasingly pair high-resolution cellular atlases (snRNA-seq, MERFISH) with longitudinal clinical fluid biomarkers (plasma p-tau217, NfL) and standardized neuroimaging (BIDS 7T MRI and synaptic SV2A PET). This report synthesizes quantitative repository metrics from the CNS Open Data Portal alongside critical methodological trends shaping neurodegenerative drug discovery.

Multi-Omics & Spatial Atlases
+38% YoY

Surge in AnnData (.h5ad) & MERFISH spatial transcriptomics deposits across AD and ALS cohorts

BIDS & NWB Format Adoption
91.4%

Over 90% of newly ingested neuroimaging and electrophysiology datasets pass automated schema validation

Commercial-Permissive Licenses
74.2%

CC0 and CC-BY-4.0 dominate public archives, accelerating foundation model pre-training

Live Portal Repository & Disease Breakdown

Total Records: 931

Resources by Disease Domain

Alzheimer's & Dementia124 (13%)
Parkinson's & Movement69 (7%)
ALS & Motor Neuron315 (34%)
Multiple Sclerosis39 (4%)
Broad CNS / Neuroimaging384 (41%)

Resources by Primary Repository

Agora (AMP-AD)12
Allen Brain Map / BICCN12
Alzforum18
bioRxiv (Neuroscience)346
DANDI Archive116
ENCALS & ALSUntangled12
europepmc21
medRxiv (Neurology)340
Multiple Sclerosis Data Alliance (MSDA)10
OpenNeuro44

1. Alzheimer's Disease: Plasma p-tau217 & Amyloid-Targeting Therapy Monitoring

With anti-amyloid immunotherapies (lecanemab, donanemab) entering routine clinical practice, research focus in public Alzheimer's repositories has pivoted toward non-invasive biological staging and ARIA (amyloid-related imaging abnormalities) risk stratification. Newly indexed literature and biomarker cohorts demonstrate that plasma p-tau217 achieves diagnostic equivalence with CSF assays and amyloid PET across diverse community populations. Simultaneously, Agora and AMP-AD transcriptomic releases have expanded coverage of microglial lipid metabolism and vascular endothelial integrity genes (APOE, TREM2, ABCA7) to explain individual susceptibility to vascular inflammation.
Key Insight:Combining plasma p-tau217/Aβ42 ratios with APOE genotype reduces screening PET scan requirements in clinical trial simulations by up to 65%.

2. Parkinson's Disease: Alpha-Synuclein Seed Amplification (SAA) & Subthalamic NWB Recordings

Parkinson's disease research is undergoing a paradigm shift toward biological definition (NSD-ISS / SynNeurGe frameworks) anchored by cerebrospinal fluid alpha-synuclein Seed Amplification Assays (SAA). Open datasets increasingly annotate prodromal RBD (REM sleep behavior disorder) and hyposmic individuals by SAA status alongside LRRK2 and GBA1 genotypes. On the systems neuroscience front, DANDI Archive has seen a marked expansion in Neurodata Without Borders (NWB) recordings capturing simultaneous basal ganglia local field potentials (LFPs) and motor kinematics during adaptive deep brain stimulation (aDBS).
Key Insight:LRRK2-PD cohorts show ~30% SAA negativity despite clinical parkinsonism, underscoring the necessity of genetic stratification in open biomarker analyses.

3. ALS & Multiple Sclerosis: Cryptic Exon Biomarkers, Smoldering Neuroinflammation & 7T MRI

In ALS, open RNA-seq and proteomics datasets (Answer ALS, NYGC) are actively leveraged to validate cryptic peptide biomarkers (such as HDGFL2 and STMN2 splice variants) that directly reflect nuclear TDP-43 loss-of-function prior to motor neuron death. Meanwhile, Multiple Sclerosis open neuroimaging repositories on OpenNeuro have prioritized ultra-high-field 7T susceptibility-weighted MRI to quantify Paramagnetic Rim Lesions (PRLs) and central vein signs, providing objective imaging endpoints for BTK inhibitors targeting chronic active microglia.
Key Insight:Serum NfL combined with cryptic exon assays enables detection of phenoconversion in pre-symptomatic C9orf72 and SOD1 mutation carriers 12-24 months before symptom onset.

Future Outlook

Looking ahead to Q2 2026, we anticipate increased release of spatial proteomics alongside single-cell chromatin accessibility (snATAC-seq) atlases, as well as broader adoption of federated learning protocols for cross-biobank clinical trial emulation.

Aggregation & Analytical Methodology:

This report aggregates metadata indexed in the Cloudflare D1 database of the CNS Open Data Portal across PubMed, Europe PMC, OpenNeuro, DANDI Archive, Allen Brain Map, Agora, and Zenodo. All ingested records undergo automated disease entity recognition, modality extraction, and license normalization.

Featured Open Datasets & Papers Referenced in This Digest

Browse all indexed resources
Allen Brain Map / BICCNBroad CNS / NeuroimagingOpen Dataset
Commercial Use Allowed - Allen Institute Terms of Use (Open Access / CC-BY)

Allen Brain Atlas: Human Brain ISH Autism Study

High-resolution ISH data detailing gene expression with a unique panel of lamina- and cell type- specific markers to phenotype cortical microstructure during the early years after autism onset.... Freely accessible open data product maintained by the Allen Institute for Brain Science.

Abstract / Summary
Spatial ISH#Allen Brain Map#Open Science#Human#Allen Human Brain Atlas
Oct 22, 2026
Allen Institute for Brain Science +1
Visit SourceData
View Details
Agora (AMP-AD)Alzheimer's & DementiaDatabase / Portal
Academic / Non-Commercial - Synapse Open Research Data

Agora Target Validation: INPP5D (inositol polyphosphate-5-phosphatase D) in Alzheimer’s Disease

This gene is a member of the inositol polyphosphate-5-phosphatase (INPP5) family and encodes a protein with an N-terminal SH2 domain, an inositol phosphatase domain, and two C-terminal protein interaction domains. Expression of this protein is restricted to hematopoietic cells where its movement from the cytosol to the...

Abstract / Summary
Multi-OmicsRNA-seqTMT ProteomicsMetabolomics#Agora#AMP-AD#INPP5D#Target Discovery
Oct 22, 2026
AMP-AD Consortium +1
Visit Source
View Details
Agora (AMP-AD)Alzheimer's & DementiaDatabase / Portal
Academic / Non-Commercial - Synapse Open Research Data

Agora Target Validation: NRN1 (neuritin 1) in Alzheimer’s Disease

This gene encodes a member of the neuritin family, and is expressed in postmitotic-differentiating neurons of the developmental nervous system and neuronal structures associated with plasticity in the adult. The expression of this gene can be induced by neural activity and neurotrophins. The encoded protein contains a ...

Abstract / Summary
Multi-OmicsRNA-seqTMT Proteomics#Agora#AMP-AD#NRN1#Target Discovery
Oct 22, 2026
AMP-AD Consortium +1
Visit Source
View Details
Agora (AMP-AD)Alzheimer's & DementiaDatabase / Portal
Academic / Non-Commercial - Synapse Open Research Data

Agora Target Validation: BIN1 (bridging integrator 1) in Alzheimer’s Disease

This gene encodes several isoforms of a nucleocytoplasmic adaptor protein, one of which was initially identified as a MYC-interacting protein with features of a tumor suppressor. Isoforms that are expressed in the central nervous system may be involved in synaptic vesicle endocytosis and may interact with dynamin, syna...

Abstract / Summary
Multi-OmicsRNA-seqTMT Proteomics#Agora#AMP-AD#BIN1#Target Discovery
Oct 22, 2026
AMP-AD Consortium +1
Visit Source
View Details
Allen Brain Map / BICCNAlzheimer's & DementiaOpen Dataset
Commercial Use Allowed - Allen Institute Terms of Use (Open Access / CC-BY)

Allen Brain Atlas: Multi-plane optical physiology during image change detection

Time series of behavioral variables and neural activity measured with multi-plane in vivo 2-photon imaging in mice performing a visual change detection task where mice were trained with image set A and tested with a novel image set B... Freely accessible open data product maintained by the Allen Institute for Brain Science.

Abstract / Summary
2-Photon Calcium#Allen Brain Map#Open Science#Mouse#Allen Brain Observatory
Oct 22, 2026
Allen Institute for Brain Science +1
Visit SourceData
View Details
Agora (AMP-AD)Alzheimer's & DementiaDatabase / Portal
Academic / Non-Commercial - Synapse Open Research Data

Agora Target Validation: HTRA1 (HtrA serine peptidase 1) in Alzheimer’s Disease

This gene encodes a member of the trypsin family of serine proteases. This protein is a secreted enzyme that is proposed to regulate the availability of insulin-like growth factors (IGFs) by cleaving IGF-binding proteins. It has also been suggested to be a regulator of cell growth. Variations in the promoter region of ...

Abstract / Summary
Multi-OmicsRNA-seqTMT Proteomics#Agora#AMP-AD#HTRA1#Target Discovery
Oct 22, 2026
AMP-AD Consortium +1
Visit Source
View Details

More Research Trend Digests

Alzheimer's Thematic Deep Dive

Alzheimer's Open Data Digest: From SEA-AD Spatial Vulnerability to Plasma Biomarker Harmonization

2026-02-20
Modality & AI Readiness Report

Neuroimaging & Electrophysiology Standards Digest: Training Brain Foundation Models on BIDS & NWB

2026-02-10