Evidence map›Paper›PMID 18195068›Full record

ArticleAntimicrobial agents and chemotherapy2008

Epigallocatechin gallate inactivates clinical isolates of herpes simplex virus.

Charles E Isaacs, Guang Y Wen, Weimin Xu, Jun Hua Jia, Lisa Rohan, Christopher Corbo, Vincenzo Di Maggio, Edmund C Jenkins, Sharon Hillier

Abstract read
In one paragraph

Article in Antimicrobial agents and chemotherapy, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 77 papers.

0numbers the graph read from it
0cells of the map it votes in
77citing papers in PubMed
3.2field-weighted citation impact, top 8% 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

77 citing papers in PubMed, 179 citations in OpenAlex.

  1. Article
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  5. Envelope Protein-Targeting Zika Virus Entry Inhibitors.International journal of molecular sciences · 2024
    Review
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  10. Kaempferol: A Review of Current Evidence of Its Antiviral Potential.International journal of molecular sciences · 2023
    Review
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  14. Review
  15. Review
  16. Article
  17. Article
  18. Article
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  20. Article

17 more citing papers are in PubMed but not listed here.

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 2 institutions in 1 country.

Charles E IsaacsDepartment of Developmental Biochemistry, Institute for Basic Research in Developmental Disabilities, 1050 Forest Hill Road, Staten Island, NY 10314, USA. chisi@rcn.com
Guang Y Wen
Weimin Xu
Jun Hua Jia
Lisa Rohan
Christopher Corbo
Vincenzo Di Maggio
Edmund C Jenkins
Sharon Hillier
New York State Office for People With Developmental Disabilities · USUniversity of Pittsburgh · US

Funding

NIAID NIH HHS AI51611-05
6 · The paper itself

Abstract

In the absence of a fully effective herpes simplex virus (HSV) vaccine, topical microbicides represent an important strategy for preventing HSV transmission. (-)-Epigallocatechin gallate (EGCG) (molecular weight, 458.4) is the primary catechin in green tea. The present study shows that EGCG has greater anti-HSV activity than other green tea catechins and inactivates multiple clinical isolates of HSV type 1 (HSV-1) and HSV-2. EGCG reduced HSV-2 titers by >or=1,000-fold in 10 to 20 min and reduced HSV-1 titers by the same amount in 30 to 40 min. The anti-HSV activity of EGCG is due to a direct effect on the virion, and incubating Vero and CV1 cells with EGCG for 48 h prior to infection with HSV-1 and HSV-2, respectively, does not reduce HSV production. Electron microscopic (EM) studies showed that purified virions exposed to EGCG were damaged, and EM immunogold labeling of the envelope glycoproteins gB and gD was significantly reduced following EGCG treatment while capsid protein labeling was unchanged. When purified HSV-1 envelope glycoproteins gB and gD were incubated with EGCG and then examined by sodium dodecyl sulfate-polyacrylamide gel electrophoresis, lower-molecular-weight gB and gD bands decreased and new higher-molecular-weight bands appeared, indicating the EGCG-dependent production of macromolecular complexes. gB and gD are essential for HSV infectivity, and these results suggest that EGCG could inactivate HSV virions by binding to gB, gD, or another envelope glycoprotein. EGCG is stable in the pH range found in the vagina and appears to be a promising candidate for use in a microbicide to reduce HSV transmission.

Indexed as

AnimalsCatechinCell LineChlorocebus aethiopsDose-Response Relationship, DrugFemaleHerpes SimplexHerpesvirus 1, HumanHerpesvirus 2, HumanHumansMicroscopy, ElectronVero CellsVirionVirus InactivationCatechinepigallocatechin gallate

Identifiers

PMID18195068
PMCPMC2258520
OpenAlexW2119023070

What OpenQuestion holds

Textmetadata
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.