Evidence map›Paper›PMID 9542916›Full record

ArticleJournal of clinical microbiology1998

Flow cytometric determination of ganciclovir susceptibilities of human cytomegalovirus clinical isolates.

J M McSharry, N S Lurain, G L Drusano, A Landay, J Manischewitz, M Nokta, M O'Gorman, H M Shapiro, A Weinberg, P Reichelderfer and 1 more

Open access · bronzeAbstract read
In one paragraph

Article in Journal of clinical microbiology, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
4.9field-weighted citation impact, top 5% 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

13 citing papers in PubMed, 40 citations in OpenAlex.

  1. Distribution of ganciclovir in the porcine central nervous system.Antimicrobial agents and chemotherapy · 2025
    Article
  2. Article
  3. Article
  4. Human cytomegalovirus resistance to antiviral drugs.Antimicrobial agents and chemotherapy · 2005
    Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Review
  11. Resistance of human cytomegalovirus to antiviral drugs.Clinical microbiology reviews · 1999
    Review
  12. Article
  13. Drug-resistant herpesviruses: should we look for them?European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 1998
    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

11 authors at 9 institutions in 1 country.

J M McSharryAlbany Medical College, New York 12208, USA. jim_mcsharry@ccgateway.amc.edu
N S Lurain
G L Drusano
A Landay
J Manischewitz
M Nokta
M O'Gorman
H M Shapiro
A Weinberg
P Reichelderfer
C Crumpacker
Albany Medical Center Hospital · USRush University Medical Center · USBeth Israel Deaconess Medical Center · USLurie Children's Hospital · USNational Institutes of Health · USNewton Public Schools · USThe University of Texas Medical Branch at Galveston · USUnited States Food and Drug Administration · USUniversity of Colorado Boulder · US

Funding

DAIDS VIROLOGY QUALITY ASSURANCE PROGRAMN01AI035172 · NIAID · RUSH UNIVERSITY MEDICAL CENTER · PI BREMER, JAMES W. · 1993 to 1998
–
FLOW CYTOMETRIC ANALYSIS OF PBMC AFTER HIV-CHEMOTHERAPYR01AI032367 · NIAID · ALBANY MEDICAL COLLEGE · PI MCSHARRY, JAMES · 1992 to 1994
–
FLOW CYTROMETRIC ANALYSIS OF HIV-INFECTED PBMCR03AI030883 · NIAID · ALBANY MEDICAL COLLEGE · PI MCSHARRY, JAMES · 1990 to 1990
–
NIAID NIH HHS AI30883NIAID NIH HHS AI32367NIAID NIH HHS N01-AI35172
6 · The paper itself

Abstract

A flow cytometric assay has been developed for the measurement of susceptibilities to ganciclovir of laboratory strains and clinical isolates of human cytomegalovirus (HCMV). The assay uses fluorochrome-labeled monoclonal antibodies to HCMV immediate-early and late antigens to identify HCMV-infected cells and flow cytometry to detect and quantitate the number of antigen-positive cells. By this assay, the 50 and 90% inhibitory concentrations (IC50 and IC90, respectively) of ganciclovir for the AD169 strain of HCMV were 1.7 and 9.2 microM, respectively, and the IC50 for the ganciclovir-resistant D6/3/1 derivative of the AD169 strain was greater than 12 microM. The ganciclovir susceptibilities of 17 HCMV clinical isolates were also determined by flow cytometric analysis of the effect of ganciclovir on late-antigen synthesis in HCMV-infected cells. The average IC50 of ganciclovir for drug-sensitive HCMV clinical isolates was 3.79 microM (+/-2.60). The plaque-reduction assay for these clinical isolates yielded an average IC50 of 2.80 microM (+/-1.46). Comparison of the results of the flow cytometry assays with those obtained from the plaque-reduction assays demonstrated acceptable bias and precision. Flow cytometric and plaque-reduction analysis of cells infected with ganciclovir-resistant clinical isolates failed to show a reduction in the percentage of late-antigen-positive cells or PFU, even at 96 microM ganciclovir. The flow cytometric assay for determining ganciclovir susceptibility of HCMV is quantitative, and objective, and potentially automatable, and its results are reproducible among laboratories.

Indexed as

Antigens, ViralAntiviral AgentsCytomegalovirusFlow CytometryGanciclovirHumansReproducibility of ResultsAntigens, ViralAntiviral AgentsGanciclovir

Identifiers

PMID9542916
PMCPMC104668
OpenAlexW2124046729

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.