Evidence map›Paper›PMID 40721280›Full record

ArticleAJNR. American journal of neuroradiology2026

Evaluation of [

Karl A Friedrichsen, Bradley A Judge, Lynne A Jones, Jayashree Rajamanickam, Lin Qiu, Anil Kumar Soda, Farzaneh Rahmani, George R Benzinger, Christopher R King, Aisling M Chaney and 10 more

Abstract read
In one paragraph

Article in AJNR. American journal of neuroradiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Article
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

20 authors.

Karl A FriedrichsenFrom the Department of Neurology (K.A.F., B.A.J., R.L.W., J.S.P., M.R.B.), Washington University in St. Louis, St. Louis, Missouri.
Bradley A JudgeFrom the Department of Neurology (K.A.F., B.A.J., R.L.W., J.S.P., M.R.B.), Washington University in St. Louis, St. Louis, Missouri.
Lynne A JonesMallinckrodt Institute of Radiology (L.A.J., J.R., L.Q., A.K.S., F.R., A.M.C., M.L.N., R.J.G., C.A.R., J.S.P., R.L., H.A., Z.T., T.L.S.B.), Washington University in St. Louis, St. Louis, Missouri.ORCID 0000-0003-0235-9538
Jayashree RajamanickamMallinckrodt Institute of Radiology (L.A.J., J.R., L.Q., A.K.S., F.R., A.M.C., M.L.N., R.J.G., C.A.R., J.S.P., R.L., H.A., Z.T., T.L.S.B.), Washington University in St. Louis, St. Louis, Missouri.
Lin QiuMallinckrodt Institute of Radiology (L.A.J., J.R., L.Q., A.K.S., F.R., A.M.C., M.L.N., R.J.G., C.A.R., J.S.P., R.L., H.A., Z.T., T.L.S.B.), Washington University in St. Louis, St. Louis, Missouri.
Anil Kumar SodaMallinckrodt Institute of Radiology (L.A.J., J.R., L.Q., A.K.S., F.R., A.M.C., M.L.N., R.J.G., C.A.R., J.S.P., R.L., H.A., Z.T., T.L.S.B.), Washington University in St. Louis, St. Louis, Missouri.ORCID 0000-0001-6818-078X
Farzaneh RahmaniMallinckrodt Institute of Radiology (L.A.J., J.R., L.Q., A.K.S., F.R., A.M.C., M.L.N., R.J.G., C.A.R., J.S.P., R.L., H.A., Z.T., T.L.S.B.), Washington University in St. Louis, St. Louis, Missouri.ORCID 0000-0002-0530-2054
George R BenzingerDepartment of Anesthesiology (G.R.B., C.R.K.), Washington University in St. Louis, St. Louis, Missouri.ORCID 0000-0002-8114-0552
Christopher R KingDepartment of Anesthesiology (G.R.B., C.R.K.), Washington University in St. Louis, St. Louis, Missouri.
Aisling M ChaneyMallinckrodt Institute of Radiology (L.A.J., J.R., L.Q., A.K.S., F.R., A.M.C., M.L.N., R.J.G., C.A.R., J.S.P., R.L., H.A., Z.T., T.L.S.B.), Washington University in St. Louis, St. Louis, Missouri.
Michael L NickelsMallinckrodt Institute of Radiology (L.A.J., J.R., L.Q., A.K.S., F.R., A.M.C., M.L.N., R.J.G., C.A.R., J.S.P., R.L., H.A., Z.T., T.L.S.B.), Washington University in St. Louis, St. Louis, Missouri.
Robert J GroplerMallinckrodt Institute of Radiology (L.A.J., J.R., L.Q., A.K.S., F.R., A.M.C., M.L.N., R.J.G., C.A.R., J.S.P., R.L., H.A., Z.T., T.L.S.B.), Washington University in St. Louis, St. Louis, Missouri.
Cyrus A RajiMallinckrodt Institute of Radiology (L.A.J., J.R., L.Q., A.K.S., F.R., A.M.C., M.L.N., R.J.G., C.A.R., J.S.P., R.L., H.A., Z.T., T.L.S.B.), Washington University in St. Louis, St. Louis, Missouri.ORCID 0000-0002-9086-0105
Robert L WhiteFrom the Department of Neurology (K.A.F., B.A.J., R.L.W., J.S.P., M.R.B.), Washington University in St. Louis, St. Louis, Missouri.ORCID 0000-0002-4030-4290
Joel S PerlmutterFrom the Department of Neurology (K.A.F., B.A.J., R.L.W., J.S.P., M.R.B.), Washington University in St. Louis, St. Louis, Missouri.ORCID 0000-0003-3263-8917
Richard LaforestMallinckrodt Institute of Radiology (L.A.J., J.R., L.Q., A.K.S., F.R., A.M.C., M.L.N., R.J.G., C.A.R., J.S.P., R.L., H.A., Z.T., T.L.S.B.), Washington University in St. Louis, St. Louis, Missouri.
Hongyu AnMallinckrodt Institute of Radiology (L.A.J., J.R., L.Q., A.K.S., F.R., A.M.C., M.L.N., R.J.G., C.A.R., J.S.P., R.L., H.A., Z.T., T.L.S.B.), Washington University in St. Louis, St. Louis, Missouri.
Zhude TuMallinckrodt Institute of Radiology (L.A.J., J.R., L.Q., A.K.S., F.R., A.M.C., M.L.N., R.J.G., C.A.R., J.S.P., R.L., H.A., Z.T., T.L.S.B.), Washington University in St. Louis, St. Louis, Missouri.
Tammie L S BenzingerMallinckrodt Institute of Radiology (L.A.J., J.R., L.Q., A.K.S., F.R., A.M.C., M.L.N., R.J.G., C.A.R., J.S.P., R.L., H.A., Z.T., T.L.S.B.), Washington University in St. Louis, St. Louis, Missouri.
Matthew R BrierFrom the Department of Neurology (K.A.F., B.A.J., R.L.W., J.S.P., M.R.B.), Washington University in St. Louis, St. Louis, Missouri brierm@wustl.edu.

Funding

Smartphone-Based "Burst" Cognitive AssessmentsP01AG003991 · NIA · WASHINGTON UNIVERSITY · PI JOHN MORRIS · 1985 to 2026
$69.5M
Imaging CoreU19AG032438 · NIA · WASHINGTON UNIVERSITY · PI BATEMAN, RANDALL J · 2010 to 2025
$53.9M
Training/DisseminationP41EB025815 · NIBIB · WASHINGTON UNIVERSITY · PI Robert J. Gropler · 2018 to 2026
$12.7M
PET SPHINGOSINE-1-PHOSPHATE RECEPTOR 1 (S1PR1) RADIOTRACERS FOR MULTIPLE SCLEROSISR01NS103988 · NINDS · WASHINGTON UNIVERSITY · PI Tammie Lee Smith Benzinger, Zhude Tu · 2017 to 2026
$5.3M
PET PROBES FOR IMAGING THE VESICULAR ACETYLCHOLINE TRANSPORTERR01NS075527 · NINDS · WASHINGTON UNIVERSITY · PI TU, ZHUDE · 2011 to 2021
$4.9M
PET Imaging of Neuroinflammation in Genetic Alzheimer's DiseaseR01AG052550 · NIA · WASHINGTON UNIVERSITY · PI Beau M Ances, Tammie Lee Smith Benzinger · 2018 to 2026
$4.2M
Translational Imaging Research Program in Radiopharmaceutical SciencesT32AG078117 · NIA · WASHINGTON UNIVERSITY · PI Tammie Lee Smith Benzinger, Vijay Sharma · 2022 to 2026
$1.9M
Investigate neuroinflammation in the brain of PD using S1P1 radioligandsR01NS134586 · NINDS · WASHINGTON UNIVERSITY · PI JOEL Synes PERLMUTTER, Zhude Tu · 2024 to 2026
$1.8M
Neuroinflammation and Alzheimer's Disease Imaging Biomarkers in Midlife ObesityR01AG072637 · NIA · WASHINGTON UNIVERSITY · PI RAJI, CYRUS A · 2024 to 2025
$1.4M
PET and MRI Evaluation of Cerebral Inflammation and Metabolic Stress in Relapsing Multiple SclerosisK23NS128325 · NINDS · WASHINGTON UNIVERSITY · PI Matthew Ryan Brier · 2023 to 2026
$931k
Neuroinflammation in Cerebral Small Vessel Disease using PET/MR ImagingR21NS127425 · NINDS · WASHINGTON UNIVERSITY · PI AN, HONGYU · 2022 to 2022
$431k
NIA NIH HHS P01 AG003991NIA NIH HHS R01 AG052550NIA NIH HHS R01 AG072637NIA NIH HHS T32 AG078117NIA NIH HHS U19 AG032438NIBIB NIH HHS P41 EB025815NINDS NIH HHS K23 NS128325NINDS NIH HHS R01 NS075527NINDS NIH HHS R01 NS103988NINDS NIH HHS R01 NS134586NINDS NIH HHS R21 NS127425
6 · The paper itself

Abstract

background and purposeSphingosine-1-phosphate receptor 1 (S1PR1) is a key regulator of neuroinflammation and plays a crucial role in multiple neurodegenerative diseases. [ MATERIALS AND

methodsWe acquired dynamic [

resultsThe image-derived input function approximated the arterially sampled input function. Further, radio-labeled metabolites of the tracer accumulated linearly throughout the scan and demonstrated consistency across participants. A 2-tissue compartment model fitted the observed emission data well, consistent with previously reported nonhuman primate studies. Kinetic modeling using the image-derived input functions, corrected by population estimates of tracer metabolism, provided a good fit for tissue activity curves. Graphical Logan analysis reliably estimated volume of distribution (Vt), and Vt closely reproduced S1PR1 distribution in the brain.

conclusionsIn this study, we have established a quantitative

Indexed as

AgingBrainPositron-Emission TomographyReceptors, LysosphingolipidAdultAgedCarbon RadioisotopesFemaleHumansMaleMiddle AgedRadiopharmaceuticalsReference ValuesReproducibility of ResultsSphingosine-1-Phosphate ReceptorsYoung AdultCarbon-11Carbon RadioisotopesRadiopharmaceuticalsReceptors, LysosphingolipidSphingosine-1-Phosphate Receptors

Identifiers

PMID40721280
PMCPMC12416513

What OpenQuestion holds

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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.