Evidence map›Paper›PMID 39171374›Full record

ArticleGenes, brain, and behavior2024

Transcriptomics analysis reveals potential regulatory role of nSMase2 (Smpd3) in nervous system development and function of middle-aged mouse brains.

Zhihui Zhu, Timothy S McClintock, Erhard Bieberich

Abstract read
In one paragraph

Article in Genes, brain, and behavior, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

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3 · Its place in the literature

Who cites it

3 citing papers in PubMed.

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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

3 authors.

Zhihui ZhuDepartment of Physiology, University of Kentucky College of Medicine, Lexington, Kentucky, USA.ORCID 0000-0002-3712-7238
Timothy S McClintockDepartment of Physiology, University of Kentucky College of Medicine, Lexington, Kentucky, USA.
Erhard BieberichDepartment of Physiology, University of Kentucky College of Medicine, Lexington, Kentucky, USA.

Funding

Function of ceramide in neurodegenerative diseaseR01AG034389 · NIA · UNIVERSITY OF KENTUCKY · PI BIEBERICH, ERHARD · 2010 to 2020
$3.6M
Function of ceramide in extracellular vesicle-mediated neurodegenerative diseaseRF1AG078338 · NIA · UNIVERSITY OF KENTUCKY · PI BIEBERICH, ERHARD · 2022 to 2025
$2.6M
Regulation of Microglial Activation State by a Lipid TransporterR01AG064234 · NIA · UNIVERSITY OF KENTUCKY · PI BIEBERICH, ERHARD · 2020 to 2024
$1.9M
Regulation of cilia by ceramideR01NS095215 · NINDS · UNIVERSITY OF KENTUCKY · PI BIEBERICH, ERHARD · 2016 to 2019
$1.4M
TBI-induced exosome release accelerates Alzheimer's disease pathologyI01BX003643 · VA · VA MEDICAL CENTER - LEXINGTON, KY · PI BIEBERICH, ERHARD · 2020 to 2023
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BLRD VA I01 BX003643NIA NIH HHS R01 AG034389NIA NIH HHS R01 AG064234NIA NIH HHS RF1 AG078338NIH HHS R01AG034389NIH HHS R01AG064234NIH HHS R01NS095215NIH HHS RF1AG078338U.S. Department of Veterans Affairs I01BX003643
6 · The paper itself

Abstract

Neutral sphingomyelinase-2 (nSMase2), gene name sphingomyelin phosphodiesterase-3 (Smpd3), is a key regulatory enzyme responsible for generating the sphingolipid ceramide. The function of nSMase2 in the brain is still controversial. To better understand the functional roles of nSMase2 in the aging mouse brain, we applied RNA-seq analysis, which identified a total of 1462 differentially abundant mRNAs between +/fro and fro/fro, of which 891 were increased and 571 were decreased in nSMase2-deficient mouse brains. The most strongly enriched GO and KEGG annotation terms among transcripts increased in fro/fro mice included synaptogenesis, synapse development, synaptic signaling, axon development, and axonogenesis. Among decreased transcripts, enriched annotations included ribosome assembly and mitochondrial protein complex functions. KEGG analysis of decreased transcripts also revealed overrepresentation of annotations for Alzheimer's disease (AD), Parkinson's disease (PD), and Huntington disease (HD). Ingenuity Pathway Analysis (IPA) tools predicted lower susceptibility to these neurodegenerative disorders, as well as predictions agreeing with stronger synaptic function, learning, and memory in fro/fro mice. The IPA tools identified signaling proteins, epigenetic regulators, and microRNAs as likely upstream regulators of the broader set of genes encoding the affected transcripts. It also revealed 16 gene networks, each linked to biological processes identified as overrepresented annotations among the affected transcripts by multiple analysis methods. Therefore, the analysis of these RNA-seq data indicates that nSMase2 impacts synaptic function and neural development, and may contribute to the onset and development of neurodegenerative diseases in middle-aged mice.

Indexed as

BrainSphingomyelin PhosphodiesteraseAgingAnimalsMaleMiceMice, Inbred C57BLTranscriptomeSmpd3 protein, mouseSphingomyelin Phosphodiesterasefro/froneurodegenerative diseasesneutral sphingomyelinase‐2RNA‐seq analysis

Identifiers

PMID39171374
PMCPMC11339599

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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.