Evidence map›Paper›PMID 9499102›Full record

Trial reportJournal of virology1998

Rapid, transient changes at the env locus of plasma human immunodeficiency virus type 1 populations during the emergence of protease inhibitor resistance.

E L Delwart, H Pan, A Neumann, M Markowitz

Open access · bronzeAbstract readClinical Trial
In one paragraph

Trial report in Journal of virology, 1998. 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
1.5field-weighted citation impact, top 19% 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, 37 citations in OpenAlex.

  1. Trial
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  17. Review
  18. Stochastic processes strongly influence HIV-1 evolution during suboptimal protease-inhibitor therapy.Proceedings of the National Academy of Sciences of the United States of America · 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

4 authors at 3 institutions in 2 countries.

E L DelwartAaron Diamond AIDS Research Center, The Rockefeller University, New York, New York 10016, USA. delwart@adarc.org
H Pan
A Neumann
M Markowitz
Aaron Diamond AIDS Research Center · USBar-Ilan University · ILRockefeller University · US

Funding

VIROLOGY COREP30AI027742 · NIAID · NEW YORK UNIVERSITY SCHOOL OF MEDICINE · PI ZOLLA-PAZNER, SUSAN B · 1989 to 2010
$19.4M
QUASISPECIES UNDER DRUG SELECTIONR29AI040408 · NIAID · UNIVERSITY OF CALIFORNIA SAN FRANCISCO · PI DELWART, ERIC L. · 1996 to 1999
–
NIAID NIH HHS AI27742NIAID NIH HHS P30 AI027742NIAID NIH HHS R29 AI40408
6 · The paper itself

Abstract

Plasma human immunodeficiency virus type 1 (HIV-1) populations were genetically analyzed at their most variable locus, the envelope gene, during the rapid emergence of resistance to protease inhibitor monotherapy. Plasma virus populations remained genetically constant prior to drug treatment and during the 1 to 2 weeks following initiation of therapy, while viremia fell 10- to 100-fold. Concomitant with rapid plasma viremia rebounds associated with the emergence of drug-resistant virus, marked alterations were then detected at the env locus. Plasma population changes lasted only a few weeks before the reappearance of the pretreatment envelope variants. The emergence of resistance to single protease inhibitors was therefore associated with major but transient changes at a nonselected locus. Selection for resistance to single protease inhibitors thus appears to be more complex than the continued replication of a large, random, and therefore genetically representative sampling of the pretreatment plasma population. The possibility that drug-privileged anatomical sites containing distinct envelope variants and/or a small effective HIV-1 population size account for these results is discussed.

Indexed as

Drug Resistance, MicrobialGenes, envGenetic VariationHIV-1HIV InfectionsHIV Protease InhibitorsHumansNelfinavirRitonavirViremiaHIV Protease InhibitorsNelfinavirRitonavir

Identifiers

PMID9499102
PMCPMC109541
OpenAlexW1531777139

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.