Evidence map›Paper›PMID 35986843›Full record

ReviewMolecular neurobiology2022

The Role of a Gut Microbial-Derived Metabolite, Trimethylamine N-Oxide (TMAO), in Neurological Disorders.

Sankar Simla Praveenraj, Sharma Sonali, Nikhilesh Anand, Hediyal Ahmed Tousif, Chandrasekaran Vichitra, Manjunath Kalyan, Perumalswamy Velumani Kanna, Kumar A Chandana, Paneyala Shasthara, Arehally M Mahalakshmi and 4 more

Abstract readReview
PubMed Publisher
In one paragraph

Review in Molecular neurobiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 60 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
60citing papers in PubMed, 1 pooled it
7.4field-weighted citation impact, top 2% 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

60 citing papers in PubMed, 1 synthesis or guideline pooled it, 89 citations in OpenAlex.

  1. Pooled it
  2. Gut microbes · 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

14 authors at 5 institutions in 3 countries.

Sankar Simla PraveenrajDepartment of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysuru, 570015, India.
Sharma SonaliDepartment of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysuru, 570015, India.
Nikhilesh AnandDepartment of Pharmacology, American University of Antigua College of Medicine, P.O. Box W-1451, University Park, Jabberwock Beach Road, Coolidge, Antigua and Barbuda.
Hediyal Ahmed TousifDepartment of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysuru, 570015, India.
Chandrasekaran VichitraDepartment of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysuru, 570015, India.
Manjunath KalyanDepartment of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysuru, 570015, India.
Perumalswamy Velumani KannaDepartment of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysuru, 570015, India.
Kumar A ChandanaDepartment of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysuru, 570015, India.
Paneyala ShastharaDepartment of Neurology, JSS Hospital, Mysuru, 570004, Karnataka, India.
Arehally M MahalakshmiDepartment of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysuru, 570015, India.
Jian YangDrug Discovery and Development Research Group, College of Pharmacy and Nutrition, University of Saskatchewan, 107 Wiggins Road, Saskatoon, SK, S7N 5E5, Canada.
Seithikurippu R Pandi-PerumalSomnogen Canada Inc, College Street, Toronto, ON, Canada.
Meena Kishore SakharkarDrug Discovery and Development Research Group, College of Pharmacy and Nutrition, University of Saskatchewan, 107 Wiggins Road, Saskatoon, SK, S7N 5E5, Canada. meena.sakharkar@usask.ca.
Saravana Babu ChidambaramDepartment of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysuru, 570015, India. babupublications@gmail.com.ORCID http://orcid.org/0000-0003-2357-056X
JSS Academy of Higher Education and Research · INUniversity of Saskatchewan · CAAmerican University of Antigua · AGJSS Medical College and Hospital · INSaveetha University · IN

Funding

Department of Biotechnology, Ministry of Science and Technology, India (BT/PR38038/PFN/20/1528/2020)
6 · The paper itself

Abstract

Trimethylamine lyases are expressed in a wide range of intestinal microbiota which metabolize dietary nutrients like choline, betaine, and L-carnitine to form trimethylamine (TMA). Trimethylamine N-oxide (TMAO) is an oxidative product of trimethylamine (TMA) catalyzed by the action of flavin monooxygenases (FMO) in the liver. Higher levels of TMAO in the plasma and cerebrospinal fluid (CSF) have been shown to contribute to the development of risk factors and actively promote the pathogenesis of metabolic, cardiovascular, and cerebrovascular diseases. The investigations on the harmful effects of TMAO in the development and progression of neurodegenerative and sleep disorders are summarized in this manuscript. Clinical investigations on the role of TMAO in predicting risk factors and prognostic factors in patients with neurological disorders are also summarized. It is observed that the mechanisms underlying TMAO-mediated pathogenesis include activation of inflammatory signaling pathways such as nuclear factor kappa B (NF-κβ), NOD-, LRR-, and pyrin domain-containing protein 3 (NLRP3) inflammasome, and MAPK/JNK in the periphery and brain. Data suggests that TMAO levels increase with age-related cognitive dysfunction and also induce mitochondrial dysfunction, oxidative stress, neuronal senescence, and synaptic damage in the brain. Further research into the relationships between dietary food consumption and gut microbiota-dependent TMAO levels could provide novel therapeutic options for neurological illnesses.

Indexed as

Gastrointestinal MicrobiomeLyasesNervous System DiseasesBetaineCarnitineCholineFlavinsHumansInflammasomesMethylaminesMixed Function OxygenasesNF-kappa BNLR Family, Pyrin Domain-Containing 3 ProteinBetaineCarnitineCholineFlavinsInflammasomesLyasesMethylaminesMixed Function OxygenasesNF-kappa BNLR Family, Pyrin Domain-Containing 3 ProteintrimethylaminetrimethyloxamineCerebral strokeGut microbiotaNeurodegenerative diseasesSleep disorderTrimethylamineTrimethylamine N-oxide

Identifiers

PMID35986843
OpenAlexW4294090794

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.