Evidence map›Paper›PMID 30120634›Full record

ArticleJournal of assisted reproduction and genetics2018

Mitochondrial DNA copy number in peripheral blood: a potential non-invasive biomarker for female subfertility.

Andrea Busnelli, Debora Lattuada, Raffaella Rossetti, Alessio Paffoni, Luca Persani, Luigi Fedele, Edgardo Somigliana

Open access · bronzeAbstract read
In one paragraph

Article in Journal of assisted reproduction and genetics, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
0.5field-weighted citation impact, top 36% 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

13 citing papers in PubMed, 20 citations in OpenAlex.

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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 3 institutions in 1 country.

Andrea BusnelliInfertility Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Via M. Fanti, 6, 20122, Milan, Italy. andreabusnelli@live.it.ORCID http://orcid.org/0000-0001-9870-5241
Debora LattuadaDepartment of Obstetrics and Gynaecology, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.
Raffaella RossettiDivision of Endocrine and Metabolic Diseases, San Luca Hospital, IRCCS Istituto Auxologico Italiano, Milan, Italy.
Alessio PaffoniInfertility Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Via M. Fanti, 6, 20122, Milan, Italy.
Luca PersaniDepartment of Clinical Sciences and Community Health, University of Milan, Milan, Italy.
Luigi FedeleDepartment of Clinical Sciences and Community Health, University of Milan, Milan, Italy.
Edgardo SomiglianaInfertility Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Via M. Fanti, 6, 20122, Milan, Italy.
University of Milan · ITFondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico · ITIRCCS Istituto Auxologico Italiano · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeLow mitochondrial DNA (mtDNA) content in oocytes and in cumulus cells is an indicator of poor oocyte quality. Moreover, initial evidence showed a correlation between mtDNA content in cumulus cells and mtDNA copy number in peripheral blood cells. On these bases, we deemed of interest investigating the correlation between mtDNA copy number in peripheral blood and natural fecundity.

methodsThis is a nested case-control study drawn from a prospective cohort of pregnant women referred for routine first trimester screening for aneuploidies (from 11 + 0 to 12 + 6 weeks of gestation) between January 2012 and March 2013 at the "Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico" of Milan, Italy. Cases were subfertile women who attempted to become pregnant for 12-24 months. Controls were the two subsequently age-matched women who became pregnant in less than 1 year. MtDNA was quantified using real-time PCR and normalized to nuclear DNA.

resultsOne hundred and four subfertile women and 208 controls were selected. The median (IQR) mtDNA copy number was 95 (73-124) and 145 (106-198), respectively (p < 0.001). The area under the ROC curve was 0.73 (95% CI 0.67-0.79) (p < 0.001). The Youden index was 105 mtDNA copy number. The crude OR for subfertility in women with mtDNA copy number below this threshold was 5.72 (95% CI 3.43-9.55). The accuracy of mtDNA copy number assessment in peripheral blood progressively decreased with increasing female age.

conclusionsLow mtDNA copy number in peripheral blood is associated with an increased risk of subfertility and may represent a biomarker of natural fecundity.

Indexed as

DNA Copy Number VariationsAdultBiomarkersCase-Control StudiesDNA, MitochondrialFemaleHumansInfertility, FemaleMitochondriaProspective StudiesROC CurveBiomarkersDNA, MitochondrialBiomarkerFecundityMitochondriaMitochondrial DNA

Identifiers

PMID30120634
PMCPMC6240551
OpenAlexW2887293167

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.