Evidence map›Paper›PMID 21824912›Full record

ArticleNucleic acids research2011

Impartial comparative analysis of measurement of leukocyte telomere length/DNA content by Southern blots and qPCR.

Abraham Aviv, Steven C Hunt, Jue Lin, Xiaojian Cao, Masayuki Kimura, Elizabeth Blackburn

Open access · goldAbstract readComparative Study
In one paragraph

Article in Nucleic acids research, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 211 papers, 16 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
211citing papers in PubMed, 16 pooled it
16.6field-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

211 citing papers in PubMed, 16 syntheses or guidelines pooled it, 342 citations in OpenAlex.

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  9. The relationship between telomere length and mortality risk in non-model vertebrate systems: a meta-analysis.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2018
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151 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

6 authors at 4 institutions in 1 country.

Abraham AvivThe Center of Human development and Aging, University of Medicine and Dentistry of New Jersey, New Jersey Medical School, Newark, NJ 07103, USA. avivab@umdnj.edu
Steven C Hunt
Jue Lin
Xiaojian Cao
Masayuki Kimura
Elizabeth Blackburn
Rutgers, The State University of New Jersey · USUniversity of Utah · USRutgers New Jersey Medical SchoolUniversity of California, San Francisco · US

Funding

GENETIC EPIDEMIOLOGY OF AGING IN UTAH PEDIGREESR01AG018734 · NIA · UNIVERSITY OF UTAH · PI HUNT, STEVEN C. · 2000 to 2007
$7.5M
Leukocyte TelomerE Dynamics, Gender, Menopause, Insulin Resistance and SurvivalR01AG030678 · NIA · UNIV OF MED/DENT OF NJ-NJ MEDICAL SCHOOL · PI AVIV, ABRAHAM · 2009 to 2013
$2.2M
Human Telomere GeneticsR01AG020132 · NIA · UNIV OF MED/DENT OF NJ-NJ MEDICAL SCHOOL · PI AVIV, ABRAHAM · 2005 to 2008
$1.5M
NIA NIH HHS AG030678NIA NIH HHS AG18734NIA NIH HHS AG20132
6 · The paper itself

Abstract

Telomere length/DNA content has been measured in epidemiological/clinical settings with the goal of testing a host of hypotheses related to the biology of human aging, but often the conclusions of these studies have been inconsistent. These inconsistencies may stem from various reasons, including the use of different telomere length measurement techniques. Here, we report the first impartial evaluation of measurements of leukocyte telomere length by Southern blot of the terminal restriction fragments and quantitative PCR (qPCR) of telomere DNA content, expressed as the ratio of telomeric product (T)/single copy gene (S) product. Blind measurements on the same samples from 50 donors were performed in two independent laboratories on two different occasions. Both the qPCR and Southern blots displayed highly reproducible results as shown by r values > 0.9 for the correlations between results obtained by either method on two occasions. The inter-assay CV measurement for the qPCR was 6.45%, while that of the Southern blots was 1.74%. The relation between the results generated by Southern blots versus those generated by qPCR deviated from linearity. We discuss the ramifications of these findings with regard to measurements of telomere length/DNA content in epidemiological/clinical circumstances.

Indexed as

Blotting, SouthernPolymerase Chain ReactionTelomere HomeostasisAdultAgedDNAFemaleHumansLeukocytesMaleMiddle AgedReproducibility of ResultsTelomereDNA

Identifiers

PMID21824912
PMCPMC3203599
OpenAlexW2124142246

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.