Evidence map›Paper›PMID 38583505›Full record

ArticleNeuroscience letters2024

Does seasonal variation affect the neuroimmune system? A retrospective [

Waleed Ibrahim, Jeonghyun An, Yanghong Yang, Kelly P Cosgrove, David Matuskey

Open access · greenAbstract read
In one paragraph

Article in Neuroscience letters, 2024. 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
0.2field-weighted citation impact, top 48% 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.

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 citations in OpenAlex.

  1. TSPO Radioligands for Neuroinflammation: An Overview.Molecules (Basel, Switzerland) · 2024
    Review
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

5 authors at 1 institution in 1 country.

Waleed IbrahimDepartment of Radiology and Biomedical Imaging, Yale University School of Medicine, New Haven, CT, United States.
Jeonghyun AnDepartment of Radiology and Biomedical Imaging, Yale University School of Medicine, New Haven, CT, United States.
Yanghong YangDepartment of Radiology and Biomedical Imaging, Yale University School of Medicine, New Haven, CT, United States.
Kelly P CosgroveDepartment of Radiology and Biomedical Imaging, Yale University School of Medicine, New Haven, CT, United States; Department of Psychiatry, Yale University School of Medicine, New Haven, CT, United States.
David MatuskeyDepartment of Radiology and Biomedical Imaging, Yale University School of Medicine, New Haven, CT, United States; Department of Psychiatry, Yale University School of Medicine, New Haven, CT, United States; Department of Neurology, Yale University School of Medicine, New Haven, CT, United States.
Yale University · US

Funding

Yale Clinical and Translational Science Award (U Component)UL1TR001863 · NCATS · YALE UNIVERSITY · PI John H. Krystal, LUCILA OHNO-MACHADO · 2016 to 2026
$102.9M
Imaging Microglial Activation in PTSD with PETR01MH110674 · NIMH · YALE UNIVERSITY · PI COSGROVE, KELLY P., PIETRZAK, ROBERT H · 2017 to 2020
$3.1M
NCATS NIH HHS UL1 TR001863NIMH NIH HHS R01 MH110674
6 · The paper itself

Abstract

introductionThe neuroimmune system performs a wide range of functions in the brain and the central nervous system. The microglial translocator protein (TSPO) has an established role as a cell marker in identification of the neuroimmune system. Previously, human studies have shown TSPO differences in neuropsychiatric disorders. Seasonal variability has also been demonstrated in multiple systems of healthy individuals. Therefore, in this study, we attempt to understand whether seasonal changes affect brain TSPO levels using [

methods46 healthy subjects (mean age ± SD = 32.5 ± 10); sex (M/F) = 32/14)) underwent PET imaging with [

resultsThere were no significant differences observed between the TSPO levels of spring/summer and fall/winter months in the brain (t = 0.52, p = 0.61). Additional analysis on all individual brain regions also indicated non-significance. Likewise, no significant correlations were found between TSPO levels in the whole brain and brain regions against daylight hours (ρ= 0.05, p = 0.74), temperature (ρ = 0.04, p = 0.81), or month (ρ = 0.08, p = 0.60). Controlling TSPO gene polymorphisms and other variables had no significant effect on the outcome.

conclusionTo the best of our knowledge, this is the first human study to investigate seasonal changes in TSPO expression. Our results can be interpreted as the lack of seasonal variability in the neuroimmune system, but important limitations include high interindividual variability, test-retest variability, specificity of the tracer, and a limited sample size. Limitations notwithstanding, our results conclude that TSPO levels in the brain are not impacted by light and temperature changes in different seasons.

Indexed as

BrainReceptors, GABACarrier ProteinsHumansPositron-Emission TomographyRetrospective StudiesSeasonsCarrier ProteinsReceptors, GABATSPO protein, human[11C]PBR28NeuroinflammationPETSeasonTranslocator-proteinTSPO

Identifiers

PMID38583505
PMCPMC11073647
OpenAlexW4393970582

What Socratic holds

Textmetadata
LicenceTDM
Read underepoch 390

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 Socratic graph.