Evidence map›Paper›PMID 36624525›Full record

ArticleAlzheimer's research & therapy2023

Molecular insights into sex-specific metabolic alterations in Alzheimer's mouse brain using multi-omics approach.

Abigail Strefeler, Maxime Jan, Manfredo Quadroni, Tony Teav, Nadia Rosenberg, Jean-Yves Chatton, Nicolas Guex, Hector Gallart-Ayala, Julijana Ivanisevic

Abstract read
In one paragraph

Article in Alzheimer's research & therapy, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
–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

19 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  17. Multi Omics Applications in Biological Systems.Current issues in molecular biology · 2024
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  18. Metabolic Regulations ofMetabolites · 2024
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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

9 authors.

Abigail StrefelerMetabolomics Unit, Faculty of Biology and Medicine, University de Lausanne, Lausanne, Switzerland.
Maxime JanBioinformatics Competence Center, Faculty of Biology and Medicine, University de Lausanne, Lausanne, Switzerland.
Manfredo QuadroniProtein Analysis Facility, Faculty of Biology and Medicine, University de Lausanne, Lausanne, Switzerland.
Tony TeavMetabolomics Unit, Faculty of Biology and Medicine, University de Lausanne, Lausanne, Switzerland.
Nadia RosenbergDepartment of Fundamental Neurosciences, Faculty of Biology and Medicine, University of Lausanne, Lausanne, Switzerland.
Jean-Yves ChattonDepartment of Fundamental Neurosciences, Faculty of Biology and Medicine, University of Lausanne, Lausanne, Switzerland.
Nicolas GuexBioinformatics Competence Center, Faculty of Biology and Medicine, University de Lausanne, Lausanne, Switzerland.
Hector Gallart-AyalaMetabolomics Unit, Faculty of Biology and Medicine, University de Lausanne, Lausanne, Switzerland. hector.gallartayala@unil.ch.
Julijana IvanisevicMetabolomics Unit, Faculty of Biology and Medicine, University de Lausanne, Lausanne, Switzerland. julijana.ivanisevic@unil.ch.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAlzheimer's disease (AD) is a progressive neurodegenerative disorder that is characterized by altered cellular metabolism in the brain. Several of these alterations have been found to be exacerbated in females, known to be disproportionately affected by AD. We aimed to unravel metabolic alterations in AD at the metabolic pathway level and evaluate whether they are sex-specific through integrative metabolomic, lipidomic, and proteomic analysis of mouse brain tissue.

methodsWe analyzed male and female triple-transgenic mouse whole brain tissue by untargeted mass spectrometry-based methods to obtain a molecular signature consisting of polar metabolite, complex lipid, and protein data. These data were analyzed using multi-omics factor analysis. Pathway-level alterations were identified through joint pathway enrichment analysis or by separately evaluating lipid ontology and known proteins related to lipid metabolism.

resultsOur analysis revealed significant AD-associated and in part sex-specific alterations across the molecular signature. Sex-dependent alterations were identified in GABA synthesis, arginine biosynthesis, and in alanine, aspartate, and glutamate metabolism. AD-associated alterations involving lipids were also found in the fatty acid elongation pathway and lysophospholipid metabolism, with a significant sex-specific effect for the latter.

conclusionsThrough multi-omics analysis, we report AD-associated and sex-specific metabolic alterations in the AD brain involving lysophospholipid and amino acid metabolism. These findings contribute to the characterization of the AD phenotype at the molecular level while considering the effect of sex, an overlooked yet determinant metabolic variable.

Indexed as

Alzheimer DiseaseAnimalsBrainFemaleLysophospholipidsMaleMiceMice, TransgenicMultiomicsProteomicsLysophospholipids3xTg AD mouseAlzheimer’s diseaseAmino acidsLipidomicsLysophospholipidsMetabolomicsMulti-omicsProteomicsSex differences

Identifiers

PMID36624525
PMCPMC9827669

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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.