Evidence map›Paper›PMID 23469054›Full record

ArticlePloS one2013

Aqueous extract of the edible Gracilaria tenuistipitata inhibits hepatitis C viral replication via cyclooxygenase-2 suppression and reduces virus-induced inflammation.

Kuan-Jen Chen, Chin-Kai Tseng, Fang-Rong Chang, Jin-Iong Yang, Chi-Chen Yeh, Wei-Chun Chen, Shou-Fang Wu, Hsueh-Wei Chang, Jin-Ching Lee

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.8field-weighted citation impact, top 10% 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

18 citing papers in PubMed, 45 citations in OpenAlex.

  1. A novel bacterial symbiont in the seaweedFrontiers in microbiology · 2026
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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 at 3 institutions in 1 country.

Kuan-Jen ChenDepartment of Biotechnology, College of Life Science, Kaohsiung Medical University, Kaohsiung, Taiwan.
Chin-Kai Tseng
Fang-Rong Chang
Jin-Iong Yang
Chi-Chen Yeh
Wei-Chun Chen
Shou-Fang Wu
Hsueh-Wei Chang
Jin-Ching Lee
Kaohsiung Medical University · TWKaohsiung Medical University Chung-Ho Memorial Hospital · TWNational Kaohsiung Marine University · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Hepatitis C virus (HCV) is an important human pathogen leading to hepatocellular carcinoma. Using an in vitro cell-based HCV replicon and JFH-1 infection system, we demonstrated that an aqueous extract of the seaweed Gracilaria tenuistipitata (AEGT) concentration-dependently inhibited HCV replication at nontoxic concentrations. AEGT synergistically enhanced interferon-α (IFN-α) anti-HCV activity in a combination treatment. We found that AEGT also significantly suppressed virus-induced cyclooxygenase-2 (COX-2) expression at promoter transactivation and protein levels. Notably, addition of exogenous COX-2 expression in AEGT-treated HCV replicon cells gradually abolished AEGT anti-HCV activity, suggesting that COX-2 down-regulation was responsible for AEGT antiviral effects. Furthermore, we highlighted the inhibitory effect of AEGT in HCV-induced pro-inflammatory gene expression such as the expression of tumour necrosis factor-α, interleukin-1β, inducible nitrite oxide synthase and COX-2 in a concentration-dependent manner to evaluate the potential therapeutic supplement in the management of patients with chronic HCV infections.

Indexed as

Antiviral AgentsCell Line, TumorCyclooxygenase 2Down-RegulationDrug SynergismGracilariaHepacivirusHumansInflammationInterferon-alphaInterleukin-1betaNF-kappa BNitric Oxide Synthase Type IIPlant ExtractsPlants, EdibleRNA-Dependent RNA PolymeraseAntiviral AgentsCyclooxygenase 2Interferon-alphaInterleukin-1betaNF-kappa BNitric Oxide Synthase Type IINS-5 protein, hepatitis C virusPlant ExtractsRNA-Dependent RNA PolymeraseRNA, ViralTumor Necrosis Factor-alphaViral Nonstructural ProteinsViral ProteinsWater

Identifiers

PMID23469054
PMCPMC3585194
OpenAlexW1984069884

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.