Evidence map›Paper›PMID 34603323›Full record

ReviewFrontiers in immunology2021

PET Imaging of Neuroinflammation in Alzheimer's Disease.

Rong Zhou, Bin Ji, Yanyan Kong, Limei Qin, Wuwei Ren, Yihui Guan, Ruiqing Ni

Registry-linked trialOpen access · goldAbstract readReview
In one paragraph

Review in Frontiers in immunology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06489548 (Assessment of Foralumab Safety and Modulation of Microglial Activation Evaluated by PET Imaging in Patients With Early Symptomatic Alzheimer's Disease), which is not on this map. Cited by 80 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
80citing papers in PubMed, 4 pooled it
10.1field-weighted citation impact, top 1% 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.

NCT06489548 phase2recruitingnot on this mapstarted 2025, after this paper: background citation

Assessment of Foralumab Safety and Modulation of Microglial Activation Evaluated by PET Imaging in Patients With Early Symptomatic Alzheimer's Disease

TypeinterventionalSponsorBrigham and Women's HospitalRan2025 to 2026Enrolled16ConditionsDementia, Alzheimers Disease, Mild Cognitive Impairment Due to Alzheimer's DiseaseArmsForalumab TZLS-401 50 µg, Foralumab TZLS-401 100 µg
3 · Its place in the literature

Who cites it

80 citing papers in PubMed, 4 syntheses or guidelines pooled it, 148 citations in OpenAlex.

  1. Pooled it
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  4. Systematic review ofFrontiers in aging neuroscience · 2023
    Pooled it
  5. Article
  6. Mechanisms, Biomarkers and Therapeutic Implications of Neuroinflammation in Alzheimer's Disease.International journal of developmental neuroscience : the official journal of the International Society for Developmental Neuroscience · 2026
    Review
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20 more citing papers are in PubMed but not listed here.

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

7 authors at 6 institutions in 2 countries.

Rong ZhouDepartment of Nephrology, Yangpu Hospital, School of Medicine, Tongji University, Shanghai, China.
Bin JiDepartment of Radiopharmacy and Molecular Imaging, School of Pharmacy, Fudan University, Shanghai, China.
Yanyan KongPositron Emission Tomography (PET) Center, Huashan Hospital, Fudan University, Shanghai, China.
Limei QinInner Mongolia Baicaotang Qin Chinese Mongolia Hospital, Hohhot, China.
Wuwei RenSchool of Information Science and Technology, Shanghaitech University, Shanghai, China.
Yihui GuanPositron Emission Tomography (PET) Center, Huashan Hospital, Fudan University, Shanghai, China.
Ruiqing NiInstitute for Regenerative Medicine, University of Zurich, Zurich, Switzerland.
Fudan University · CNHuashan Hospital · CNInner Mongolia Autonomous Region Hospital of Traditional Chinese Medicine · CNShanghaiTech University · CNUniversity of Zurich · CHYangpu Hospital of Tongji University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Neuroinflammation play an important role in Alzheimer's disease pathogenesis. Advances in molecular imaging using positron emission tomography have provided insights into the time course of neuroinflammation and its relation with Alzheimer's disease central pathologies in patients and in animal disease models. Recent single-cell sequencing and transcriptomics indicate dynamic disease-associated microglia and astrocyte profiles in Alzheimer's disease. Mitochondrial 18-kDa translocator protein is the most widely investigated target for neuroinflammation imaging. New generation of translocator protein tracers with improved performance have been developed and evaluated along with tau and amyloid imaging for assessing the disease progression in Alzheimer's disease continuum. Given that translocator protein is not exclusively expressed in glia, alternative targets are under rapid development, such as monoamine oxidase B, matrix metalloproteinases, colony-stimulating factor 1 receptor, imidazoline-2 binding sites, cyclooxygenase, cannabinoid-2 receptor, purinergic P2X7 receptor, P2Y12 receptor, the fractalkine receptor, triggering receptor expressed on myeloid cells 2, and receptor for advanced glycation end products. Promising targets should demonstrate a higher specificity for cellular locations with exclusive expression in microglia or astrocyte and activation status (pro- or anti-inflammatory) with highly specific ligand to enable

Indexed as

Molecular ImagingPositron-Emission TomographyRadiopharmaceuticalsAlzheimer DiseaseAnimalsBiomarkersBrainHumansLigandsNeuroinflammatory DiseasesPredictive Value of TestsReceptors, GABABiomarkersLigandsRadiopharmaceuticalsReceptors, GABATSPO protein, humanAlzheimer’s diseaseamyloid (A) 42astrocytemicroglianeuroinflammationpositron emission tomography (PET)tauTSPO (18 kDa translocator protein)

Identifiers

PMID34603323
PMCPMC8481830
OpenAlexW3199005955

What OpenQuestion holds

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Registered trials

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.