Evidence map›Paper›PMID 39489454›Full record

ArticleNeurobiology of disease2024

Spatially heterogeneous lipid dysregulation in tuberculous meningitis.

John Kim, Ian Spears, Clara Erice, Hye-Young H Kim, Ned A Porter, Caitlin Tressler, Elizabeth W Tucker

Abstract read
In one paragraph

Article in Neurobiology of disease, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. Observational
  2. 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

7 authors.

John KimDepartment of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA; Center for Tuberculosis Research, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA.
Ian SpearsDepartment of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA; Center for Tuberculosis Research, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA.
Clara EriceDepartment of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA; Center for Tuberculosis Research, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA.
Hye-Young H KimDepartment of Chemistry and Vanderbilt Institute of Chemical Biology, Vanderbilt University, Nashville, TN 37235, USA.
Ned A PorterDepartment of Chemistry and Vanderbilt Institute of Chemical Biology, Vanderbilt University, Nashville, TN 37235, USA.
Caitlin TresslerRussell H. Morgan Department of Radiology and Radiological Science, Division of Cancer, Imaging Research, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA. Electronic address: ctressl3@jhmi.edu.
Elizabeth W TuckerDepartment of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA; Center for Tuberculosis Research, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA. Electronic address: etucker9@jh.edu.

Funding

SLOS and Neuronal Oxidative StressR01HD064727 · NICHD · VANDERBILT UNIVERSITY · PI PORTER, NED ALLEN · 2010 to 2020
$3.7M
Bruker scimaX™ Magnetic Resonance Mass SpectrometerS10OD030212 · OD · MEDICAL UNIVERSITY OF SOUTH CAROLINA · PI ANGEL, PEGGI M · 2021 to 2021
$1.7M
Novel Imaging and host-directed therapy in pediatric CNS TBK08AI139371 · NIAID · JOHNS HOPKINS UNIVERSITY · PI TUCKER, ELIZABETH WINANS · 2019 to 2023
$994k
NIAID NIH HHS K08 AI139371NICHD NIH HHS R01 HD064727NIH HHS S10 OD030212
6 · The paper itself

Abstract

Tuberculous (TB) meningitis is the deadliest form of extrapulmonary TB which disproportionately affects children and immunocompromised individuals. Studies in pulmonary TB have shown that Mycobacterium tuberculosis can alter host lipid metabolism to evade the immune system. Cholesterol lowering drugs (i.e., statins) reduce the risk of infection, making them a promising host-directed therapy in pulmonary TB. However, the effect of M. tuberculosis infection on the young or adult brain lipidome has not been studied. The brain is the second-most lipid-rich organ, after adipose tissue, with a temporally and spatially heterogeneous lipidome that changes from infancy to adulthood. The young, developing brain in children may be uniquely vulnerable to alterations in lipid composition and homeostasis, as perturbations in cholesterol metabolism can cause developmental disorders leading to intellectual disabilities. To begin to understand the alterations to the brain lipidome in pediatric TB meningitis, we utilized our previously published young rabbit model of TB meningitis and applied mass spectrometry (MS) techniques to elucidate spatial differences. We used matrix assisted laser desorption/ionization-MS imaging (MALDI-MSI) and complemented it with region-specific liquid chromatography (LC)-MS/MS developed to identify and quantify sterols and oxysterols difficult to identify by MALDI-MSI. MALDI-MSI revealed several sphingolipids, glycerolipids and glycerophospholipids that were downregulated in brain lesions. LC-MS/MS revealed the downregulation of cholesterol, several sterol intermediates along the cholesterol biosynthesis pathway and enzymatically produced oxysterols as a direct result of M. tuberculosis infection. However, oxysterols produced by oxidative stress were increased in brain lesions. Together, these results demonstrate significant spatially regulated brain lipidome dysregulation in pediatric TB meningitis.

Indexed as

BrainLipid MetabolismTuberculosis, MeningealAnimalsFemaleLipidomicsMaleMycobacterium tuberculosisRabbitsSpectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationBrain lipidomeCholesterolGlycerophospholipidMALDI-MSIOxysterolPediatricSphingolipidTuberculous meningitis

Identifiers

PMID39489454
PMCPMC12293813

What OpenQuestion holds

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LicenceCC BY-NC-ND
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Registered trials

None linked

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.