Evidence map›Paper›PMID 34871763›Full record

ArticleFree radical biology & medicine2022

Inflammation-dependent oxidative stress metabolites as a hallmark of amyotrophic lateral sclerosis.

Luyang Xiong, Michael McCoy, Hitoshi Komuro, Xiaoxia Z West, Valentin Yakubenko, Detao Gao, Tejasvi Dudiki, Amanda Milo, Jacqueline Chen, Eugene A Podrez and 2 more

Open access · hybridAbstract read
In one paragraph

Article in Free radical biology & medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
3.7field-weighted citation impact, top 5% 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

31 citing papers in PubMed, 46 citations in OpenAlex.

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  12. Phytochemical Composition ofCurrent pharmaceutical biotechnology · 2025
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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

12 authors at 3 institutions in 1 country.

Luyang XiongDepartment of Neurosciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, 44195, USA.
Michael McCoyDepartment of Medicine, Cardiovascular Division, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA.
Hitoshi KomuroDepartment of Neurosciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, 44195, USA.
Xiaoxia Z WestDepartment of Neurosciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, 44195, USA.
Valentin YakubenkoDepartment of Biomedical Sciences, Center of Excellence for Inflammation, Infectious Disease and Immunity, Quillen College of Medicine, East Tennessee State University, Johnson City, TN, 37684, USA.
Detao GaoDepartment of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, 44195, USA.
Tejasvi DudikiDepartment of Neurosciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, 44195, USA.
Amanda MiloDepartment of Neurosciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, 44195, USA.
Jacqueline ChenDepartment of Neurosciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, 44195, USA.
Eugene A PodrezDepartment of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, 44195, USA.
Bruce TrappDepartment of Neurosciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, 44195, USA.
Tatiana V ByzovaDepartment of Neurosciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, 44195, USA. Electronic address: byzovat@ccf.org.
Cleveland Clinic Lerner College of Medicine · USBrigham and Women's Hospital · USEast Tennessee State University · US

Funding

Pathogenesis of Neurological Disability in Primary Diseases of MyelinR35NS097303 · NINDS · CLEVELAND CLINIC LERNER COM-CWRU · PI TRAPP, BRUCE D · 2017 to 2024
$6.9M
Platelets in CancerR01HL142772 · NHLBI · CLEVELAND CLINIC LERNER COM-CWRU · PI BYZOVA, TATIANA V · 2018 to 2021
$2.6M
Role of TLR2 in angiogenesisR01HL145536 · NHLBI · CLEVELAND CLINIC LERNER COM-CWRU · PI BYZOVA, TATIANA V · 2019 to 2022
$2.6M
Novel oxidative pathway targets microglia in Alzheimer's diseaseR01AG082382 · NIA · CLEVELAND CLINIC LERNER COM-CWRU · PI Tatiana V Byzova, EUGENE A PODREZ · 2024 to 2026
$2.3M
NHLBI NIH HHS R01 HL142772NHLBI NIH HHS R01 HL145536NIA NIH HHS R01 AG082382NINDS NIH HHS R35 NS097303
6 · The paper itself

Abstract

Amyotrophic lateral sclerosis (ALS) is a progressive neurodegenerative disease, with poor prognosis and no cure. Substantial evidence implicates inflammation and associated oxidative stress as a potential mechanism for ALS, especially in patients carrying the SOD1 mutation and, therefore, lacking anti-oxidant defense. The brain is particularly vulnerable to oxidation due to the abundance of polyunsaturated fatty acids, such as docosahexaenoic acid (DHA), which can give rise to several oxidized metabolites. Accumulation of a DHA peroxidation product, CarboxyEthylPyrrole (CEP) is dependent on activated inflammatory cells and myeloperoxidase (MPO), and thus marks areas of inflammation-associated oxidative stress. At the same time, generation of an alternative inactive DHA peroxidation product, ethylpyrrole, does not require cell activation and MPO activity. While absent in normal brain tissues, CEP is accumulated in the central nervous system (CNS) of ALS patients, reaching particularly high levels in individuals carrying a SOD1 mutation. ALS brains are characterized by high levels of MPO and lowered anti-oxidant activity (due to the SOD1 mutation), thereby aiding CEP generation and accumulation. Due to DHA oxidation within the membranes, CEP marks cells with the highest oxidative damage. In all ALS cases CEP is present in nearly all astrocytes and microglia, however, only in individuals carrying a SOD1 mutation CEP marks >90% of neurons, thereby emphasizing an importance of CEP accumulation as a potential hallmark of oxidative damage in neurodegenerative diseases.

Indexed as

Amyotrophic Lateral SclerosisNeurodegenerative DiseasesAnimalsDisease Models, AnimalHumansInflammationMiceMice, TransgenicMutationOxidative StressSuperoxide DismutaseSuperoxide Dismutase-1Superoxide DismutaseSuperoxide Dismutase-1Amyotrophic lateral sclerosisBiomarkerCarboxyethylpyrroleLipid peroxidationOxidative stress

Identifiers

PMID34871763
PMCPMC8744315
OpenAlexW4200001211

What OpenQuestion holds

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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.