Evidence map›Paper›PMID 19760105›Full record

ArticleEuropean journal of epidemiology2009

Determinants of DNA yield and purity collected with buccal cell samples.

D B M A van Wieren-de Wijer, A H Maitland-van der Zee, A de Boer, S V Belitser, A A Kroon, P W de Leeuw, P Schiffers, R G J H Janssen, C M van Duijn, B H C H Stricker and 1 more

Open access · hybridAbstract read
In one paragraph

Article in European journal of epidemiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
0.9field-weighted citation impact, top 22% 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

12 citing papers in PubMed, 35 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Comparison of five DNA extraction methods in three medicinal plants:Molecular biology research communications · 2023
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  10. New studies, technology, and the progress of epidemiology.European journal of epidemiology · 2010
    Article
  11. Article
  12. The Generation R Study: design and cohort update 2010.European journal of epidemiology · 2010
    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 3 institutions in 1 country.

D B M A van Wieren-de WijerDepartment of Pharmacoepidemiology & Pharmacotherapy, Faculty of Science, Utrecht Institute for Pharmaceutical Sciences, University of Utrecht, P. O. Box 80082, 3508 TB, Utrecht, The Netherlands. B.M.A.vanWieren@uu.nl
A H Maitland-van der Zee
A de Boer
S V Belitser
A A Kroon
P W de Leeuw
P Schiffers
R G J H Janssen
C M van Duijn
B H C H Stricker
O H Klungel
Utrecht University · NLMaastricht University · NLErasmus MC · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Buccal cells are an important source of DNA in epidemiological studies, but little is known about factors that influence amount and purity of DNA. We assessed these factors in a self-administered buccal cell collection procedure, obtained with three cotton swabs. In 2,451 patients DNA yield and in 1,033 patients DNA purity was assessed. Total DNA yield ranged from 0.08 to 1078.0 microg (median 54.3 microg; mean 82.2 microg +/- SD 92.6). The median UV 260:280 ratio, was 1.95. Samples from men yielded significantly more DNA (median 58.7 microg) than those from women (median 44.2 microg). Diuretic drug users had significantly lower purity (median 1.92) compared to other antihypertensive drug users (1.95). One technician obtained significantly lower DNA yields. Older age was associated with lower DNA purity. In conclusion, DNA yield from buccal swabs was higher in men and DNA purity was associated with age and the use of diuretics.

Indexed as

Specimen HandlingAgedAge FactorsAntihypertensive AgentsCase-Control StudiesDNAFemaleHumansMaleMiddle AgedMouth MucosaSex FactorsAntihypertensive AgentsDNA

Identifiers

PMID19760105
PMCPMC2771138
OpenAlexW2169394520

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.