Evidence map›Paper›PMID 30662008›Full record

ArticleJournal of lipid research2019

Acid sphingomyelinase deficiency protects mitochondria and improves function recovery after brain injury.

Sergei A Novgorodov, Joshua R Voltin, Wenxue Wang, Stephen Tomlinson, Christopher L Riley, Tatyana I Gudz

Open access · hybridAbstract read
In one paragraph

Article in Journal of lipid research, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
1.1field-weighted citation impact, top 23% 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

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 28 citations in OpenAlex.

  1. Pooled it
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  4. Deciphering macrophage molecular responses toFrontiers in microbiology · 2026
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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

6 authors at 2 institutions in 1 country.

Sergei A NovgorodovDepartments of Neuroscience Medical University of South Carolina, Charleston, SC 29425.
Joshua R VoltinDepartments of Neuroscience Medical University of South Carolina, Charleston, SC 29425.
Wenxue WangMicrobiology and Immunology Medical University of South Carolina, Charleston, SC 29425.
Stephen TomlinsonMicrobiology and Immunology Medical University of South Carolina, Charleston, SC 29425.
Christopher L RileyRalph H. Johnson Veterans Affairs Medical Center Charleston, SC 29401.
Tatyana I GudzDepartments of Neuroscience Medical University of South Carolina, Charleston, SC 29425 gudz@musc.edu.
Medical University of South Carolina · USRalph H. Johnson VA Medical Center · US

Funding

RESEARCH PILOT PROJECTS PROGRAMP30GM103339 · NIGMS · MEDICAL UNIVERSITY OF SOUTH CAROLINA · PI HANNUN, YUSUF AWNI · 2012 to 2016
$5.4M
Role and Regulation of SIRT3 in White MatterR01NS083544 · NINDS · MEDICAL UNIVERSITY OF SOUTH CAROLINA · PI GUDZ, TATYANA I. · 2014 to 2018
$1.6M
Targeting Sphingosine to Treat Brain InjuryI01BX002991 · VA · RALPH H JOHNSON VA MEDICAL CENTER · PI GUDZ, TATYANA I. · 2016 to 2019
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BLRD VA I01 BX002991NIGMS NIH HHS P30 GM103339NINDS NIH HHS R01 NS083544
6 · The paper itself

Abstract

Traumatic brain injury (TBI) is one of the leading causes of disability worldwide and a prominent risk factor for neurodegenerative diseases. The expansion of nervous tissue damage after the initial trauma involves a multifactorial cascade of events, including excitotoxicity, oxidative stress, inflammation, and deregulation of sphingolipid metabolism that further mitochondrial dysfunction and secondary brain damage. Here, we show that a posttranscriptional activation of an acid sphingomyelinase (ASM), a key enzyme of the sphingolipid recycling pathway, resulted in a selective increase of sphingosine in mitochondria during the first week post-TBI that was accompanied by reduced activity of mitochondrial cytochrome oxidase and activation of the Nod-like receptor protein 3 inflammasome. TBI-induced mitochondrial abnormalities were rescued in the brains of ASM KO mice, which demonstrated improved behavioral deficit recovery compared with WT mice. Furthermore, an elevated autophagy in an ASM-deficient brain at the baseline and during the development of secondary brain injury seems to foster the preservation of mitochondria and brain function after TBI. Of note, ASM deficiency attenuated the early stages of reactive astrogliosis progression in an injured brain. These findings highlight the crucial role of ASM in governing mitochondrial dysfunction and brain-function impairment, emphasizing the importance of sphingolipids in the neuroinflammatory response to TBI.

Indexed as

Gene Knockout TechniquesRecovery of FunctionAnimalsBrain InjuriesCognitionEnzyme ActivationMiceMice, Inbred C57BLMitochondriaNLR Family, Pyrin Domain-Containing 3 ProteinSphingomyelin PhosphodiesteraseNLR Family, Pyrin Domain-Containing 3 ProteinSphingomyelin Phosphodiesteraseastrogliosisinflammasomeneuroinflammationsphingolipids

Identifiers

PMID30662008
PMCPMC6399498
OpenAlexW2909395324

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.