Evidence map›Paper›PMID 22374315›Full record

ArticleMolecules (Basel, Switzerland)2012

Flavone enhances dengue virus type-2 (NGC strain) infectivity and replication in vero cells.

Keivan Zandi, Rafidah Lani, Pooi-Fong Wong, Boon-Teong Teoh, Sing-Sin Sam, Jefree Johari, Mohd Rais Mustafa, Sazaly AbuBakar

Abstract read
In one paragraph

Article in Molecules (Basel, Switzerland), 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing 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

12 citing papers in PubMed.

  1. Review
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. The Effect of Hydrocotyle sibthorpioides Lam. Extracts on In Vitro Dengue Replication.Evidence-based complementary and alternative medicine : eCAM · 2015
    Article
  9. Article
  10. Extract of Scutellaria baicalensis inhibits dengue virus replication.BMC complementary and alternative medicine · 2013
    Article
  11. Article
  12. Novel antiviral activity of baicalein against dengue virus.BMC complementary and alternative medicine · 2012
    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

8 authors.

Keivan ZandiTropical Infectious Diseases Research and Education Center (TIDREC), Department of Medical Microbiology, Faculty of Medicine, University Malaya, Kuala Lumpur 50603, Malaysia.
Rafidah Lani
Pooi-Fong Wong
Boon-Teong Teoh
Sing-Sin Sam
Jefree Johari
Mohd Rais Mustafa
Sazaly AbuBakar

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study investigates the effects of 2-phenyl-1-benzopyran-4-one (flavone) on DENV-2 infectivity in Vero cells. Virus adsorption and attachment and intracellular virus replication were investigated using a foci forming unit assay (FFUA) and quantitative RT-PCR, respectively. Addition of flavone (100 μg/mL) significantly increased the number of DENV-2 foci by 35.66% ± 1.52 and 49.66% ± 2.51 when added during and after virus adsorption to the Vero cells, respectively. The average foci size after 4 days of infection increased by 33% ± 2.11 and 89% ± 2.13. The DENV-2 specific RNA copy number in the flavone-treated infected cells increased by 6.41- and 23.1-fold when compared to the mock-treated infected cells. Flavone (100 μg/mL) did not promote or inhibit Vero cell proliferation. The CC₅₀ value of flavone against Vero cells was 446 µg/mL. These results suggest that flavone might enhance dengue virus replication by acting antagonistically towards flavonoids known to inhibit dengue virus replication.

Indexed as

AnimalsCell SurvivalChlorocebus aethiopsDengue VirusFlavonesReal-Time Polymerase Chain ReactionRNA, ViralVero CellsVirus ReplicationflavoneFlavonesRNA, Viral

Identifiers

PMID22374315
PMCPMC6268591

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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.