Evidence map›Paper›PMID 22245888›Full record

ArticleJournal of hepatology2012

Understanding silibinin's modes of action against HCV using viral kinetic modeling.

Jeremie Guedj, Harel Dahari, Ralf T Pohl, Peter Ferenci, Alan S Perelson

Open access · greenAbstract read
In one paragraph

Article in Journal of hepatology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 1 pooled it
4.2field-weighted citation impact, top 6% 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

27 citing papers in PubMed, 1 synthesis or guideline pooled it, 49 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Article
  5. Review
  6. Review
  7. Article
  8. Article
  9. Antiviral Activities of Silymarin and Derivatives.Molecules (Basel, Switzerland) · 2019
    Review
  10. Article
  11. Review
  12. Modeling Viral Spread.Annual review of virology · 2016
    Review
  13. Article
  14. Article
  15. HCV Kinetic Models and Their Implications in Drug Development.CPT: pharmacometrics & systems pharmacology · 2015
    Review
  16. Sustained virological response with intravenous silibinin: individualized IFN-free therapy via real-time modelling of HCV kinetics.Liver international : official journal of the International Association for the Study of the Liver · 2015
    Article
  17. Article
  18. Viral kinetic modeling: state of the art.Journal of pharmacokinetics and pharmacodynamics · 2014
    Review
  19. Article
  20. 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

5 authors at 2 institutions in 2 countries.

Jeremie GuedjTheoretical Biology and Biophysics, Los Alamos National Laboratory, Los Alamos, NM 87545, USA.
Harel DahariTheoretical Biology and Biophysics, Los Alamos National Laboratory, Los Alamos, NM 87545, USA; Department of Medicine, University of Illinois at Chicago, IL 60612, USA.
Ralf T PohlRottapharm Madaus, Madaus GmbH, Colonia Allee 15, Cologne 51067, Germany.
Peter FerenciInternal Medicine 3, Department of Gastroenterology and Hepatology, Medical University of Vienna, Austria.
Alan S PerelsonTheoretical Biology and Biophysics, Los Alamos National Laboratory, Los Alamos, NM 87545, USA. Electronic address: asp@lanl.gov.
Los Alamos National Laboratory · USMedical University of Vienna · AT

Funding

UNM COBRE: THEORETICAL STUDY OF SPECIFICITY OF RNA SILENCING MECHANISMP20RR018754 · NCRR · UNIVERSITY OF NEW MEXICO · PI LOKER, ERIC SAMUEL · 2003 to 2011
$16.7M
Collaborative Integration of HCV Molecular Virology and Mathematical ModelingR01AI078881 · NIAID · UNIVERSITY OF ILLINOIS AT CHICAGO · PI PERELSON, ALAN S, UPRICHARD, SUSAN L. · 2011 to 2025
$7.5M
HIV Antiretroviral Therapy and Hepatic InjuryR01AI065256 · NIAID · UNIVERSITY OF CINCINNATI · PI SHERMAN, KENNETH E · 2006 to 2019
$5.5M
Modeling Viral and T Lymphocyte DynamicsR01OD011095 · OD · TRIAD NATIONAL SECURITY, LLC · PI PERELSON, ALAN S · 2012 to 2024
$5.0M
MODELING VIRAL AND T LYMPHOCYTE DYNAMICSR01RR006555 · NCRR · UNIVERSITY OF CALIF-LOS ALAMOS NAT LAB · PI PERELSON, ALAN S · 1991 to 2011
$3.9M
Immune System Modeling/HIVR01AI028433 · NIAID · UNIVERSITY OF CALIF-LOS ALAMOS NAT LAB · PI PERELSON, ALAN S · 1990 to 2021
$3.7M
Immune System Modeling/HIVR37AI028433 · NIAID · UNIVERSITY OF CALIF-LOS ALAMOS NAT LAB · PI PERELSON, ALAN S · 2002 to 2011
$2.4M
HIV Antiretroviral Therapy and Hepatic InjuryR56AI065256 · NIAID · UNIVERSITY OF CINCINNATI · PI SHERMAN, KENNETH E · 2014 to 2014
$535k
Collaborative Integration of HCV Molecular Virology and Mathematical ModelingR56AI078881 · NIAID · UNIVERSITY OF ILLINOIS AT CHICAGO · PI PERELSON, ALAN S, UPRICHARD, SUSAN L. · 2010 to 2010
$421k
NCRR NIH HHS P20 RR018754NCRR NIH HHS P20-RR018754NCRR NIH HHS R01 RR006555NCRR NIH HHS RR006555NIAID NIH HHS AI028433NIAID NIH HHS AI065256NIAID NIH HHS AI078881NIAID NIH HHS R01 AI028433NIAID NIH HHS R01 AI065256NIAID NIH HHS R01 AI078881NIAID NIH HHS R37 AI028433NIAID NIH HHS R56 AI065256NIAID NIH HHS R56 AI078881NIH HHS R01 OD011095
6 · The paper itself

Abstract

BACKGROUND &

aimsLegalon® SIL (SIL) is a chemically hydrophilized version of silibinin that has exhibited high antiviral effectiveness against hepatitis C virus (HCV). Its main mode of action (MOA) remains unclear, with contradicting in vitro studies supporting either suppression of entry and cell-to-cell spread or suppression of viral RNA synthesis as the main MOA. We sought to provide new insights into SIL's MOA in HCV genotype-1/4 patients receiving intravenous SIL monotherapy for 7 days via mathematical modeling.

methodsChanges in HCV RNA in 25 patients receiving 10, 15, or 20mg/kg/day of SIL were analyzed and modeled using viral kinetic methods.

resultsIn 15 patients, the virus declined in a biphasic manner, in which a sharp drop between days 0 and 2 was followed by a slower second phase of decline. In 10 patients, the initial decline was weaker and the virus declined in a single phase over the 7-day period. The blocking production effectiveness, ε, was dose-dependent with mean ε=0.49 and 0.89 in the 10 or 15 and 20mg/kg/day dosing groups, respectively (p=0.02). The effectiveness of blocking viral infection, η, was estimated as 0.60 with no significant differences across dosing groups. For all patients, the mean rate of viral load decline measured between days 2 and 7 was high (0.3 log(10)IU/ml/day), i.e., 4-fold higher than typically observed during the 2nd phase of (pegylated)-interferon-α±ribavirin treatment.

conclusionsModeling HCV kinetics in vivo suggests that SIL may block both viral infection and viral production/release with its main dose-dependent effect being blocking viral production/release.

Indexed as

Models, TheoreticalAdultAgedAntiviral AgentsDose-Response Relationship, DrugGenotypeHepacivirusHepatitis CHumansMiddle AgedRNA, ViralSilybinSilymarinTreatment OutcomeViral LoadVirus ReplicationAntiviral AgentsRNA, ViralSilybinSilymarin

Identifiers

PMID22245888
PMCPMC3328661
OpenAlexW2033831478

What OpenQuestion holds

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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.