Evidence map›Paper›PMID 29946759›Full record

ArticleJournal of assisted reproduction and genetics2018

Magnetic-activated cell sorting of non-apoptotic spermatozoa improves the quality of embryos according to female age: a prospective sibling oocyte study.

Martin Stimpfel, Ivan Verdenik, Branko Zorn, Irma Virant-Klun

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, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
3.7field-weighted citation impact, top 7% 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, 1 synthesis or guideline pooled it, 31 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Sperm Selection Procedures in Cases of High Sperm DNA Fragmentation Index.Advances in experimental medicine and biology · 2026
    Review
  4. Article
  5. Review
  6. Article
  7. Article
  8. Radiology and oncology · 2021
    Article
  9. Article
  10. Review
  11. Novel Techniques of Sperm Selection for Improving IVF and ICSI Outcomes.Frontiers in cell and developmental biology · 2019
    Review
  12. Article
  13. 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

4 authors at 1 institution in 1 country.

Martin StimpfelDepartment of Obstetrics and Gynaecology, University Medical Centre Ljubljana, Slajmerjeva 3, 1000, Ljubljana, SI, Slovenia. martin.stimpfel@gmail.com.ORCID http://orcid.org/0000-0002-6495-4845
Ivan VerdenikDepartment of Obstetrics and Gynaecology, University Medical Centre Ljubljana, Slajmerjeva 3, 1000, Ljubljana, SI, Slovenia.
Branko ZornDepartment of Obstetrics and Gynaecology, University Medical Centre Ljubljana, Slajmerjeva 3, 1000, Ljubljana, SI, Slovenia.
Irma Virant-KlunDepartment of Obstetrics and Gynaecology, University Medical Centre Ljubljana, Slajmerjeva 3, 1000, Ljubljana, SI, Slovenia.
Ljubljana University Medical Centre · SI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe main aim of our study was to evaluate the benefit of the use of non-apoptotic spermatozoa selected by magnetic-activated cell sorting (MACS) for ICSI procedures for couples in which the women had good prognoses and the male factor of infertility was teratozoospermia.

methodsTwenty-six couples were treated with ICSI after MACS selection of non-apoptotic spermatozoa following a sibling oocyte approach. Half of the oocytes were microinjected with conventionally prepared spermatozoa, and the other half were microinjected with non-apoptotic, MACS-selected spermatozoa. To assess the influence of MACS selection of spermatozoa on the outcomes of the ICSI cycles, the fertilization, embryo quality, pregnancy, and delivery rates were evaluated and compared between the sibling oocyte groups.

resultsWhen subpopulations of couples according to female age were analyzed, a significant difference in quality of blastocyst was observed. More precisely, in a group that was treated with MACS-ICSI, a higher percentage of good quality blastocysts was found among women older than 30 years (75.0 vs. 33.3%; P = 0.028), while there was no difference among younger women. If all included couples were compared regardless of age, no significant difference was observed in the outcome of the ICSI/MACS-ICSI cycles in terms of oocytes and embryos. Additionally, after the ICSI and MACS-ICSI procedures, the morphologies of the prepared spermatozoa were compared. Results showed that the overall percentage of morphologically normal spermatozoa did not differ significantly between the ICSI and MACS-ICSI procedures. However, detailed analyses of the morphologically abnormal spermatozoa revealed significantly more spermatozoa with abnormal tails after MACS-ICSI procedure, which may be potential consequence of the selection procedure. Moreover, the trends towards less spermatozoa with abnormal heads and towards more spermatozoa with abnormal necks and midpieces after MACS-ICSI procedure were revealed, although the differences were not significant.

conclusionsCouples dealing with male infertility due to teratozoospermia can benefit from MACS selection of spermatozoa with higher percentage of good quality blastocysts but only when the woman is older than 30 years.

Indexed as

Sperm Injections, IntracytoplasmicAdultApoptosisCell SeparationFemaleFertilization in VitroHumansInfertility, MaleMagneticsMaleOocytesPregnancyPregnancy RateSpermatozoaBlastocystMACSSpermatozoa morphologySpermatozoa selection

Identifiers

PMID29946759
PMCPMC6133812
OpenAlexW2810575010

What OpenQuestion holds

Textmetadata
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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.