Evidence map›Paper›PMID 35476894›Full record

ArticleEMBO reports2022

External light-dark cycle shapes gut microbiota through intrinsically photosensitive retinal ganglion cells.

Chi-Chan Lee, Feng Liang, I-Chi Lee, Tsung-Hao Lu, Yu-Yau Shan, Chih-Fan Jeng, Yan-Fang Zou, Hon-Tsen Yu, Shih-Kuo Chen Alen

Abstract read
In one paragraph

Article in EMBO reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing 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

17 citing papers in PubMed.

  1. Article
  2. Work-Influenced Circadian Disruption Connected to Disease Risk but Not Microbiomes in a Cohort of Philadelphia Nurses.American journal of human biology : the official journal of the Human Biology Council · 2026
    Article
  3. Article
  4. Article
  5. Review
  6. Prolonged Light Exposure Induces Long-Lasting Retinal Wave Plasticity via Retrograde Melanopsin-Dopamine Signaling.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2026
    Article
  7. Review
  8. Review
  9. Article
  10. Circadian metabolic adaptations to infections.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025
    Review
  11. Review
  12. Article
  13. Review
  14. Review
  15. Article
  16. Article
  17. 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.

Chi-Chan LeeDepartment of Life Science, National Taiwan University, Taipei, Taiwan.
Feng LiangDepartment of Life Science, National Taiwan University, Taipei, Taiwan.
I-Chi LeeDepartment of Life Science, National Taiwan University, Taipei, Taiwan.
Tsung-Hao LuDepartment of Life Science, National Taiwan University, Taipei, Taiwan.
Yu-Yau ShanDepartment of Life Science, National Taiwan University, Taipei, Taiwan.ORCID 0000-0003-4157-9250
Chih-Fan JengDepartment of Life Science, National Taiwan University, Taipei, Taiwan.
Yan-Fang ZouDepartment of Life Science, National Taiwan University, Taipei, Taiwan.ORCID 0000-0002-3646-8591
Hon-Tsen YuDepartment of Life Science, National Taiwan University, Taipei, Taiwan.
Shih-Kuo Chen AlenDepartment of Life Science, National Taiwan University, Taipei, Taiwan.ORCID 0000-0002-7921-1358

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Gut microbiota are involved in many physiological functions such as metabolism, brain development, and neurodegenerative diseases. Many microbes in the digestive tract do not maintain a constant level of their relative abundance but show daily oscillations under normal conditions. Recent evidence indicates that chronic jetlag, constant darkness, or deletion of the circadian core gene can alter the composition of gut microbiota and dampen the daily oscillation of gut microbes. However, the neuronal circuit responsible for modulating gut microbiota remained unclear. Using genetic mouse models and 16s rRNA metagenomic analysis, we find that light-dark cycle information transmitted by the intrinsically photosensitive retinal ganglion cells (ipRGCs) is essential for daily oscillations of gut microbes under temporal restricted high-fat diet conditions. Furthermore, aberrant light exposure such as dim light at night (dLAN) can alter the composition, relative abundance, and daily oscillations of gut microbiota. Together, our results indicate that external light-dark cycle information can modulate gut microbiota in the direction from the brain to the gut via the sensory system.

Indexed as

Gastrointestinal MicrobiomeRetinal Ganglion CellsAnimalsCircadian RhythmLightMicePhotoperiodRNA, Ribosomal, 16SRod OpsinsRNA, Ribosomal, 16SRod Opsinsdim light at nightgut microbiotaipRGCmelanopsin

Identifiers

PMID35476894
PMCPMC9171413

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.