Evidence map›Paper›PMID 27589718›Full record

ArticleMolecules (Basel, Switzerland)2016

Icariin Metabolism by Human Intestinal Microflora.

Hailong Wu, Mihyang Kim, Jaehong Han

Open access · goldAbstract read
In one paragraph

Article in Molecules (Basel, Switzerland), 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed
6.8field-weighted citation impact, top 4% 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

41 citing papers in PubMed, 80 citations in OpenAlex.

  1. Review
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  7. A comprehensive narrative review ofJournal of pharmaceutical analysis · 2026
    Review
  8. Article
  9. Review
  10. Journal of pharmaceutical analysis · 2025
    Review
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Icariin as a Treatment Proposal in Mammalian Reproduction.Pharmaceuticals (Basel, Switzerland) · 2024
    Review
  17. Review
  18. Review
  19. Article
  20. Journal of microbiology and biotechnology · 2023
    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

3 authors at 1 institution in 1 country.

Hailong WuMetalloenzyme Research Group and Department of Integrative Plant Science, Chung-Ang University, Anseong 17546, Korea. a550539053@hotmail.com.
Mihyang KimMetalloenzyme Research Group and Department of Integrative Plant Science, Chung-Ang University, Anseong 17546, Korea. mihcoterie@gmail.com.
Jaehong HanMetalloenzyme Research Group and Department of Integrative Plant Science, Chung-Ang University, Anseong 17546, Korea. jaehongh@cau.ac.kr.
Chung-Ang University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Icariin is a major bioactive compound of Epimedii Herba, a traditional oriental medicine exhibiting anti-cancer, anti-inflammatory and anti-osteoporosis activities. Recently, the estrogenic activities of icariin drew significant attention, but the published scientific data seemed not to be so consistent. To provide fundamental information for the study of the icaritin metabolism, the biotransformation of icariin by the human intestinal bacteria is reported for the first time. Together with human intestinal microflora, the three bacteria Streptococcus sp. MRG-ICA-B, Enterococcus sp. MRG-ICA-E, and Blautia sp. MRG-PMF-1 isolated from human intestine were reacted with icariin under anaerobic conditions. The metabolites including icariside II, icaritin, and desmethylicaritin, but not icariside I, were produced. The MRG-ICA-B and E strains hydrolyzed only the glucose moiety of icariin, and icariside II was the only metabolite. However, the MRG-PMF-1 strain metabolized icariin further to desmethylicaritin via icariside II and icaritin. From the results, along with the icariin metabolism by human microflora, it was evident that most icariin is quickly transformed to icariside II before absorption in the human intestine. We propose the pharmacokinetics of icariin should focus on metabolites such as icariside II, icaritin and desmethylicaritin to explain the discrepancy between the in vitro bioassay and pharmacological effects.

Indexed as

Gastrointestinal MicrobiomeAnaerobiosisEnterococcusFemaleFlavonoidsHumansMaleStreptococcusFlavonoidsicariinbiotransformationdesmethylicaritinEpimedium koreanumhuman intestinal bacteriaicariinicariside IIicaritin

Identifiers

PMID27589718
PMCPMC6273050
OpenAlexW2508138211

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.