Evidence map›Paper›PMID 15731261›Full record

ArticleJournal of virology2005

Long-term cytomegalovirus infection leads to significant changes in the composition of the CD8+ T-cell repertoire, which may be the basis for an imbalance in the cytokine production profile in elderly persons.

Giovanni Almanzar, Susanne Schwaiger, Brigitte Jenewein, Michael Keller, Dietmar Herndler-Brandstetter, Reinhard Würzner, Diether Schönitzer, Beatrix Grubeck-Loebenstein

Open access · greenAbstract read
In one paragraph

Article in Journal of virology, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 175 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
175citing papers in PubMed, 2 pooled it
13.1field-weighted citation impact, top 1% 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

175 citing papers in PubMed, 2 syntheses or guidelines pooled it, 353 citations in OpenAlex.

  1. Pooled it
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  3. Effects of Fish Oil on HIV-Related Inflammation and Markers of Immunosenescence: A Randomized Clinical Trial.Journal of alternative and complementary medicine (New York, N.Y.) · 2018
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115 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

8 authors at 2 institutions in 1 country.

Giovanni AlmanzarImmunology Division, Institute for Biomedical Aging Research, Austrian Academy of Sciences, Rennweg, 10, A-6020 Innsbruck, Austria.
Susanne Schwaiger
Brigitte Jenewein
Michael Keller
Dietmar Herndler-Brandstetter
Reinhard Würzner
Diether Schönitzer
Beatrix Grubeck-Loebenstein
Austrian Academy of Sciences · ATInnsbruck Medical University · AT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In spite of the present belief that latent cytomegalovirus (CMV) infection drives CD8+ T-cell differentiation and induces premature immune senescence, no systematic studies have so far been performed to compare phenotypical and functional changes in the CD8+ T-cell repertoire in CMV-infected and noninfected persons of different age groups. In the present study, number, cytokine production, and growth potential of naive (CD45RA+ CD28+), memory (CD45RA- CD28+), and effector (CD45RA+ CD28- or CD45RA- CD28-) CD8+ T cells were analyzed in young, middle-aged, and elderly clinically healthy persons with a positive or negative CMV antibody serology. Numbers and functional properties of CMVpp65(495-503)-specific CD8+ T cells were also studied. We demonstrate that aging as well as CMV infection lead to a decrease in the size of the naive CD8+ T-cell pool but to an increase in the number of CD8+ effector T cells, which produce gamma interferon but lack substantial growth potential. The size of the CD8+ memory T-cell population, which grows well and produces interleukin-2 (IL-2) and IL-4, also increases with aging, but this increase is missing in CMV carriers. Life-long latent CMV infection seems thus to diminish the size of the naive and the early memory T-cell pool and to drive a Th1 polarization within the immune system. This can lead to a reduced diversity of CD8 responses and to chronic inflammatory processes which may be the basis of severe health problems in elderly persons.

Indexed as

AdultAgedAgingAntibodies, ViralCD28 AntigensCD8-Positive T-LymphocytesCell ProliferationCytokinesCytomegalovirus InfectionsFemaleHumansLeukocyte Common AntigensLymphocyte ActivationMaleMiddle AgedTime FactorsAntibodies, ViralCD28 AntigensCytokinesLeukocyte Common Antigens

Identifiers

PMID15731261
PMCPMC1075718
OpenAlexW2103059589

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.