Evidence map›Paper›PMID 22911608›Full record

ArticleEvidence-based complementary and alternative medicine : eCAM2012

Antiviral Activity of Isatis indigotica Extract and Its Derived Indirubin against Japanese Encephalitis Virus.

Shu-Jen Chang, Yi-Chih Chang, Kai-Zen Lu, Yi-Yun Tsou, Cheng-Wen Lin

Abstract read
In one paragraph

Article in Evidence-based complementary and alternative medicine : eCAM, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing 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

43 citing papers in PubMed.

  1. Review
  2. Article
  3. Review
  4. Article
  5. Advances in microbial biosynthesis of indirubin.Chinese herbal medicines · 2026
    Review
  6. Review
  7. Article
  8. Article
  9. Journal of pharmacopuncture · 2024
    Review
  10. Review
  11. Article
  12. Article
  13. Review
  14. Review
  15. Article
  16. Discovery of Small Molecules fromLife (Basel, Switzerland) · 2022
    Article
  17. Targeting natural products against SARS-CoV-2.Environmental science and pollution research international · 2022
    Review
  18. Review
  19. Role of medicinal plants in inhibiting SARS-CoV-2 and in the management of post-COVID-19 complications.Phytomedicine : international journal of phytotherapy and phytopharmacology · 2022
    Article
  20. 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

5 authors.

Shu-Jen ChangSchool of Pharmacy, China Medical University, Taichung 404, Taiwan.
Yi-Chih Chang
Kai-Zen Lu
Yi-Yun Tsou
Cheng-Wen Lin

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Isatis indigotica is widely used in Chinese Traditional Medicine for clinical treatment of virus infection, tumor, and inflammation, yet its antiviral activities remain unclear. This study probed antiviral activity of I. indigotica extract and its marker compounds against Japanese encephalitis virus (JEV). I. indigotica methanol extract, indigo, and indirubin proved less cytotoxic than other components, showing inhibitory effect (concentration-dependent) on JEV replication in vitro. Time-of-addition experiments proved the extract, indigo, and indirubin with potent antiviral effect by pretreatment (before infection) or simultaneous treatment (during infection), but not posttreatment (after entry). Antiviral action of these agents showed correlation with blocking virus attachment and exhibited potent virucidal activity. In particular, indirubin had strong protective ability in a mouse model with lethal JEV challenge. The study could yield anti-JEV agents.

Identifiers

PMID22911608
PMCPMC3405817

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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.