Evidence map›Paper›PMID 39058017›Full record

ArticleSmall methods2025

Time-Resolved Evaluation of L-Dopa Metabolism in Bacteria-Host Symbiotic System and the Effect on Parkinson's Molecular Pathology.

Doyeon Kim, Tin Tin Manh Nguyen, Yechan Moon, Jin-Mo Kim, Hoonsik Nam, Dong Seok Cha, Yong Jin An, Arvie Camille V de Guzman, Sunghyouk Park

Abstract read
In one paragraph

Article in Small methods, 2025. 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

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

3 citing papers in PubMed.

  1. Article
  2. Live Metabolomics with NMR.Analytical chemistry · 2026
    Review
  3. Article
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.

Doyeon KimNatural Products Research Institute, College of Pharmacy, Seoul National University, Seoul, 08826, South Korea.
Tin Tin Manh NguyenNatural Products Research Institute, College of Pharmacy, Seoul National University, Seoul, 08826, South Korea.
Yechan MoonNatural Products Research Institute, College of Pharmacy, Seoul National University, Seoul, 08826, South Korea.
Jin-Mo KimNatural Products Research Institute, College of Pharmacy, Seoul National University, Seoul, 08826, South Korea.
Hoonsik NamNatural Products Research Institute, College of Pharmacy, Seoul National University, Seoul, 08826, South Korea.
Dong Seok ChaCollege of Pharmacy Woosuk University, Jeonbuk, 55338, South Korea.
Yong Jin AnNatural Products Research Institute, College of Pharmacy, Seoul National University, Seoul, 08826, South Korea.
Arvie Camille V de GuzmanNatural Products Research Institute, College of Pharmacy, Seoul National University, Seoul, 08826, South Korea.ORCID 0000-0003-0962-4824
Sunghyouk ParkNatural Products Research Institute, College of Pharmacy, Seoul National University, Seoul, 08826, South Korea.ORCID 0000-0003-1981-3274

Funding

Basic Science Research Program 2018R1A3B1052328Ministry of Education 2020R1A6A3A01099440Ministry of Science, Information and Communication TechnologyNational Research Foundation of Korea
6 · The paper itself

Abstract

The gut microbiome influences drug metabolism and therapeutic efficacy. Still, the lack of a general label-free approach for monitoring bacterial or host metabolic contribution hampers deeper insights. Here, a 2D nuclear magnetic resonance (NMR) approach is introduced that enables real-time monitoring of the metabolism of Levodopa (L-dopa), an anti-Parkinson drug, in both live bacteria and bacteria-host (Caenorhabditis elegans) symbiotic systems. The quantitative method reveals that discrete Enterococcus faecalis substrains produce different amounts of dopamine in live hosts, even though they are a single species and all have the Tyrosine decarboxylase (TyrDC) gene involved in L-dopa metabolism. The differential bacterial metabolic activity correlates with differing Parkinson's molecular pathology concerning alpha-synuclein aggregation as well as behavioral phenotypes. The gene's existence or expression is not an indicator of metabolic activity is also shown, underscoring the significance of quantitative metabolic estimation in vivo. This simple approach is widely adaptable to any chemical drug to elucidate pharmacomicrobiomic relationships and may help rapidly screen bacterial metabolic effects in drug development.

Indexed as

Caenorhabditis elegansEnterococcus faecalisLevodopaParkinson Diseasealpha-SynucleinAnimalsAntiparkinson AgentsDopamineGastrointestinal MicrobiomeMagnetic Resonance SpectroscopySymbiosisTyrosine Decarboxylasealpha-SynucleinAntiparkinson AgentsDopamineLevodopaTyrosine DecarboxylaseC. elegansdopaminedrug metabolismliving host‐gut microbiome systemreal‐time HSQC NMR

Identifiers

PMID39058017
PMCPMC11926514

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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.