Evidence map›Paper›PMID 14963139›Full record

ArticleJournal of virology2004

Highly uneven distribution of tenofovir-selected simian immunodeficiency virus in different anatomical sites of rhesus macaques.

Magdalena Magierowska, Flavien Bernardin, Seema Garg, Silvija Staprans, Michael D Miller, Koen K A Van Rompay, Eric L Delwart

Abstract read
In one paragraph

Article in Journal of virology, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.9field-weighted citation impact, top 30% 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

6 citing papers in PubMed, 16 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. 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

7 authors at 4 institutions in 1 country.

Magdalena MagierowskaDepartment of Medicine, University of California-San Francisco, California 94118, USA.
Flavien Bernardin
Seema Garg
Silvija Staprans
Michael D Miller
Koen K A Van Rompay
Eric L Delwart
Blood Systems Research Institute · USUniversity Medical Center · USGilead Sciences (United States) · USUniversity of California, Davis · US

Funding

POPULATION GENETICS OF THE PO1 LOCUS OF SIV AND HIV1R01AI047320 · NIAID · UNIVERSITY OF CALIFORNIA SAN FRANCISCO · PI DELWART, ERIC L. · 1999 to 2003
$935k
NIAID NIH HHS R01 AI047320NIAID NIH HHS R01-AI-47320
6 · The paper itself

Abstract

Antiviral tenofovir monotherapy was used to determine whether drug-selected simian immunodeficiency virus (SIV) variants replaced their wild-type progenitors at the same rate in different tissues of six rhesus macaques. The relative frequencies of drug-resistant and wild-type genotypes were measured longitudinally in blood and in 23 lymphoid and nonlymphoid tissues collected at necropsy. The mutant/wild-type genotype ratio was measured using a heteroduplex tracking assay targeting tenofovir-selected SIV reverse transcriptase codons. After the initiation of tenofovir treatment in animals with high steady-state viremia levels, resistant genotypes emerged in the plasma within 1 to 8 weeks and in five of six cases reached frequencies of nearly 100% within 4 to 25 weeks. The appearance of tenofovir-resistant genotypes in peripheral blood mononuclear cell (PBMC) DNA was generally delayed by 1 to 2 weeks and in one case was completely absent. Necropsies performed 8 to 55 weeks after the initiation of tenofovir treatment showed the frequency of resistant SIV genotypes to be generally higher in tissue RNA than DNA fractions. The frequency of drug-resistant genotypes varied widely between anatomical sites, including different lymph nodes of the same animal. Except for the epidydimis, the tissues with the lowest rates of proviral replacement by tenofovir-resistant genotypes differed between animals. The highly uneven distribution of tenofovir-resistant genotypes in different tissues seen shortly after the initiation of tenofovir monotherapy may reflect differences in local antiviral drug selection pressures and/or the stochastic effect of small effective populations of drug-resistant variants randomly seeding different anatomical sites early in therapy.

Indexed as

OrganophosphonatesAdenineAnimalsDNA Mutational AnalysisDrug Resistance, ViralGenotypeLongitudinal StudiesMacaca mulattaMaleOrganophosphorus CompoundsOrgan SpecificityReproducibility of ResultsReverse Transcriptase InhibitorsSimian Immunodeficiency VirusTenofovirViremiaAdenineOrganophosphonatesOrganophosphorus CompoundsReverse Transcriptase InhibitorsTenofovir

Identifiers

PMID14963139
PMCPMC369237
OpenAlexW2136458755

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.