Evidence map›Paper›PMID 28281144›Full record

ArticleJournal of assisted reproduction and genetics2017

Predictive value of spindle retardance in embryo implantation rate.

Sabela García-Oro, María Isabel Rey, Marta Rodríguez, Ángel Durán, Roque Devesa, Diana Valverde

Abstract read
In one paragraph

Article in Journal of assisted reproduction and genetics, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 1 pooled it
1.2field-weighted citation impact, top 19% 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

5 citing papers in PubMed, 1 synthesis or guideline pooled it, 8 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Review
  5. 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

6 authors at 1 institution in 1 country.

Sabela García-OroEquipo Ron - Hospital Quirón A Coruña, C/Londres 2, 15009, A Coruña, Spain.
María Isabel ReyEquipo Ron - Hospital Quirón A Coruña, C/Londres 2, 15009, A Coruña, Spain.
Marta RodríguezEquipo Ron - Hospital Quirón A Coruña, C/Londres 2, 15009, A Coruña, Spain.
Ángel DuránEquipo Ron - Hospital Quirón A Coruña, C/Londres 2, 15009, A Coruña, Spain.
Roque DevesaEquipo Ron - Hospital Quirón A Coruña, C/Londres 2, 15009, A Coruña, Spain.
Diana ValverdeDepartment Biochemistry, Genetics and Immunology, Faculty of Biology, University of Vigo, Campus, As Lagoas Marcosende S/N, 36310, Vigo, Spain. dianaval@uvigo.es.ORCID http://orcid.org/0000-0002-7024-1657
Instituto de Investigación Sanitaria de Santiago · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeWe evaluated the relationship between meiotic spindle characteristics and in vitro fertilization cycle outcome.

methodsFive hundred sixty-nine oocytes from 86 in vitro fertilization cycles were analyzed for fertilization and subsequent implantation rates. Oocytes were assessed for maturation status. The oocytes and embryos were cultured in sequential and nonsequential media (G Series, Vitrolife, Sweden) and incubated in 6% CO

resultsFour hundred fifty-six oocytes (80.5%) had a visible meiotic spindle, 82 (14.7%) had no meiotic spindle, and 31 (5.5%) were in telophase I. Oocytes exhibiting a meiotic spindle had a significantly higher fertilization rate and a lower rate of abnormal fertilization. Implantation data were obtained for 195 of the embryos transferred. The implantation rate for embryos derived from oocytes with a meiotic spindle was 32.9%, while in embryos originating from oocytes without a meiotic spindle and oocytes in telophase, this value dropped significantly (8.8 and 0%, respectively). To determine the correlation between retardance values and implantation rate for each oocyte, we established four groups, finding a range of retardance values with significantly higher implantation rates (27.5, 21, 29.3, and 53.8%, respectively).

conclusionMeiotic spindle imaging may be a valuable tool for prediction of oocyte quality, and retardance values of meiotic spindles, together with classical morphological classification, can be useful to select embryos with a higher implantation potential.

Indexed as

Embryonic DevelopmentFertilization in VitroChorionic GonadotropinEmbryo ImplantationFemaleGonadotropin-Releasing HormoneHumansMaleMicroscopy, PolarizationOocytesPregnancySperm Injections, IntracytoplasmicSpindle ApparatusSwedenChorionic GonadotropinGonadotropin-Releasing HormoneEmbryo implantationEmbryo selectionMeiotic spindleOocyte quality

Identifiers

PMID28281144
PMCPMC5427648
OpenAlexW2593706153

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.