Evidence map›Paper›PMID 23842746›Full record

ArticleJournal of assisted reproduction and genetics2013

Retrieval and in vitro maturation of human oocytes from ovaries removed during surgery for endometrial carcinoma: a novel strategy for human oocyte research.

Hiromitsu Shirasawa, Jin Kumagai, Wataru Sato, Yukiyo Kumazawa, Naoki Sato, Yukihiro Terada

Abstract read
In one paragraph

Article in Journal of assisted reproduction and genetics, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
–field-weighted citation impact
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

8 citing papers in PubMed.

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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

6 authors.

Hiromitsu ShirasawaDepartment of Obstetrics and Gynecology, Akita University Graduate School of Medicine, 1-1-1, Hondo, Akita, 010-8543, Japan.
Jin Kumagai
Wataru Sato
Yukiyo Kumazawa
Naoki Sato
Yukihiro Terada

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo collect human oocytes from ovaries removed as part of surgical treatment for endometrial carcinoma, and to induce in vitro maturation of such oocytes to obtain material for research on human ovarian aging.

methods

designProspective clinical study.

settingUniversity Hospital. PATIENTS: Eight patients aged 35-44 years with a preoperative diagnosis of Stage I endometrial cancer agreed to participate in this project.

interventionsSurgically removed ovaries were punctured; oocytes were collected from follicular fluid and matured in vitro. Immunofluorescent detection of microtubules and DNA labeling were performed after in vitro maturation.

main outcome measuresNumber of oocytes collected and their in vitro maturation stage.

resultsIn total, 87 oocytes were collected, 11 of which had completed metaphase II. Of the oocytes collected, 75 % were from three patients in their 30s, while the remaining 25 % were from five patients in their 40s. Several stages of oocytes were collected and the detection of microtubule arrangement and chromatin in various stages using fluorescence was possible.

conclusionMaterial for research on human ovarian aging can be obtained from ovaries removed during surgery for endometrial cancer.

Indexed as

In Vitro Oocyte Maturation TechniquesAdultEndometrial NeoplasmsFemaleFertilization in VitroHumansMeiosisOocytesOvarian FollicleOvariectomyProspective Studies

Identifiers

PMID23842746
PMCPMC3800521

What OpenQuestion holds

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Registered trials

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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.