Evidence map›Paper›PMID 41960432›Full record

ReviewFrontiers in microbiology2026

(-)-Epicatechin and inflammation: Unraveling the role of microbial metabolites and interindividual metabolic variability.

Hao Yu, Meiyi Ning, Baozhou Long, Mengyi Ren, Cheng Wang, Yunshu Wang, Hong Chen, Daiwen Chen, Ning Jiang, Chen Liu

Abstract readReview
In one paragraph

Review in Frontiers in microbiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Review
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

10 authors.

Hao Yu *College of Light Industry and Food, Nanjing Forestry University, Nanjing, China.
Meiyi Ning *Tea Resources Utilization and Quality Testing Key Laboratory of Sichuan Province, College of Horticulture, Sichuan Agricultural University, Chengdu, Sichuan, China.
Baozhou Long *Tea Resources Utilization and Quality Testing Key Laboratory of Sichuan Province, College of Horticulture, Sichuan Agricultural University, Chengdu, Sichuan, China.
Mengyi RenTea Resources Utilization and Quality Testing Key Laboratory of Sichuan Province, College of Horticulture, Sichuan Agricultural University, Chengdu, Sichuan, China.
Cheng WangInstitute of Agricultural Products Processing, Jiangsu Academy of Agricultural Sciences, Nanjing, China.
Yunshu WangTea Resources Utilization and Quality Testing Key Laboratory of Sichuan Province, College of Horticulture, Sichuan Agricultural University, Chengdu, Sichuan, China.
Hong ChenCollege of Food Science, Sichuan Agricultural University, Ya'an, China.
Daiwen ChenInstitute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan, China.
Ning JiangCollege of Light Industry and Food, Nanjing Forestry University, Nanjing, China.
Chen LiuTea Resources Utilization and Quality Testing Key Laboratory of Sichuan Province, College of Horticulture, Sichuan Agricultural University, Chengdu, Sichuan, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

(-)-Epicatechin (EC), a dietary flavan-3-ol abundant in tea, cocoa, and certain fruits, has demonstrated promising anti-inflammatory activity. This review summarizes the chemical structure, absorption, distribution, metabolism, and excretion (ADME) characteristics, and molecular mechanisms through which EC modulates inflammation. EC acts both directly-via suppression of factor-kappa B (NF-κB), mitogen-activated protein kinase (MAPK), and Janus kinase/signal transducers and activators of transcription (JAK/STAT) pathways-and indirectly through activation of nuclear factor erythroid 2-related factor 2 (Nrf2)-driven antioxidant responses that mitigate inflammatory damage. Importantly, we highlight recent evidence on colonic microbial metabolites of EC, which exhibit diverse and sometimes enhanced bioactivities compared to the parent compound. These low-molecular-weight phenolics participate in immune regulation, redox balance, and intestinal barrier protection, and thereby contribute substantially to the overall anti-inflammatory effects of EC. A core innovation of this review is to highlight that interindividual variability in EC metabolism, largely governed by gut microbiota composition and host enzymatic capacity, generates distinct metabolite profiles. These metabotype-dependent differences provide a mechanistic basis for interindividual variability in the anti-inflammatory efficacy of EC and should be carefully considered when interpreting experimental and clinical findings on EC. Finally, we discuss strategies to enhance EC's bioavailability, including delivery system optimization and structural modification. This review offers mechanistic and translational insights into EC's anti-inflammatory potential and highlights the need to integrate microbial metabolism and host factors into future dietary interventions.

Indexed as

anti-inflammatory mechanismsbioavailabilitycolonic metabolitesgut microbiotainterindividual variability

Identifiers

PMID41960432
PMCPMC13057332

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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.