Evidence map›Paper›PMID 26226487›Full record

ArticlePloS one2015

Effect of Previous Chemotherapy on the Quality of Cryopreserved Human Ovarian Tissue In Vitro.

Babak Asadi Azarbaijani, Mona Sheikhi, Irma C Oskam, Mirja Nurmio, Tiina Laine, Helena Tinkanen, Sirpa Mäkinen, Tom G Tanbo, Outi Hovatta, Kirsi Jahnukainen

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.3field-weighted citation impact, top 18% 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

18 citing papers in PubMed, 33 citations in OpenAlex.

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  18. Fertility preservation through gonadal cryopreservation.Reproductive medicine and biology · 2016
    Review
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

10 authors at 7 institutions in 3 countries.

Babak Asadi AzarbaijaniWomen and Children's Division, Oslo University Hospital, Rikshospitalet, Oslo, Norway; University of Oslo, Oslo, Norway.
Mona SheikhiDivision of Obstetrics and Gynecology, Karolinska Institute, Karolinska University Hospital, Huddinge, Stockholm, Sweden; Stockholm IVF, Stockholm, Sweden.
Irma C OskamFaculty of Veterinary Medicine and Bioscience, University of Oslo, Oslo, Norway.
Mirja NurmioDepartment of Physiology and Pediatrics, University of Turku, Turku, Finland.
Tiina LaineDepartment of Pediatrics, Helsinki University Central Hospital, Helsinki, Finland; Division of Obstetrics and Gynecology, University of Helsinki, Helsinki, Finland.
Helena TinkanenTampere University Central Hospital, Tampere, Finland.
Sirpa MäkinenThe Family Federation of Finland, Fertility Clinic, Helsinki, Finland.
Tom G TanboWomen and Children's Division, Oslo University Hospital, Rikshospitalet, Oslo, Norway; University of Oslo, Oslo, Norway.
Outi HovattaDivision of Obstetrics and Gynecology, Karolinska Institute, Karolinska University Hospital, Huddinge, Stockholm, Sweden.
Kirsi JahnukainenDepartment of Pediatrics, Helsinki University Central Hospital, Helsinki, Finland; Division of Obstetrics and Gynecology, University of Helsinki, Helsinki, Finland; Department of Women's and Children´s Health, Karolinska Institute and University Hospital, Stockholm, Sweden.
University of Oslo · NOKarolinska Institutet · SEKarolinska University Hospital · SETampere University · FIUniversity of Helsinki · FIUniversity of Turku · FIVäestöliitto · FI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCryopreservation of ovarian tissue has been widely accepted as an option for fertility preservation among cancer patients. Some patients are exposed to chemotherapy prior to ovarian tissue cryopreservation. Consequently, assessment of the developmental capacity of human ovarian tissue after chemotherapy is of primary importance. MATERIALS: In order to study the impact of previous chemotherapy on in vitro development and viability of ovarian follicles, quality control samples from 34 female cancer patients at median age of 15 years (range 1‒35), cryopreserved for fertility preservation before (n = 14) or after (n = 20) initiation of chemotherapy, were thawed and cultured for 7 days. The morphology and developmental stages of ovarian follicles were studied by light microscopy before and after culture. Possible associations between follicular densities, age and exposure to alkylating agents, expressed as cyclophosphamide equivalent dose (CED) were tested.

resultsExposure to chemotherapy significantly impaired the survival and development of ovarian follicles in culture. After seven days, significantly higher densities of intermediary, primary and secondary follicles and lower densities of atretic follicles was detected in the samples collected before chemotherapy. Increasing dose of alkylating agents was identified by multivariate linear regression analysis as an independent predictor of a higher density of atretic follicles, whereas increasing age of the patient predicted a better outcome with less follicle atresia and a higher density of maturing follicles.

conclusionThis study provides quantitative in vitro evidence of the impact of chemotherapy on developmental capacity of cryopreserved human ovarian tissue. The results indicate that fertility preservation should be carried out, if possible, before initiation of alkylating agents in order to guarantee better in vitro survival of ovarian follicles. In addition, ovarian samples from younger girls show lower viability and fewer developing follicles in culture.

Indexed as

AdolescentAdultAntineoplastic AgentsCase-Control StudiesChildChild, PreschoolCryopreservationFemaleHumansInfantOvarian FollicleTissue Culture TechniquesYoung AdultAntineoplastic Agents

Identifiers

PMID26226487
PMCPMC4520548
OpenAlexW1668860748

What OpenQuestion holds

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LicenceCC BY
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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.