Evidence map›Paper›PMID 32651677›Full record

ArticleJournal of assisted reproduction and genetics2020

Altered expression of activator proteins that control follicle reserve after ovarian tissue cryopreservation/transplantation and primordial follicle loss prevention by rapamycin.

Soner Celik, Sinan Ozkavukcu, Ciler Celik-Ozenci

Open access · greenAbstract read
In one paragraph

Article in Journal of assisted reproduction and genetics, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
2.9field-weighted citation impact, top 8% 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

16 citing papers in PubMed, 34 citations in OpenAlex.

  1. Article
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  6. Luteinizing Hormone Receptor Mutation (LHRInterdisciplinary sciences, computational life sciences · 2024
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  13. Cancer Treatment-Related Ovarian Dysfunction in Women of Childbearing Potential: Management and Fertility Preservation Options.Journal of clinical oncology : official journal of the American Society of Clinical Oncology · 2023
    Review
  14. Article
  15. Article
  16. 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

3 authors at 2 institutions in 1 country.

Soner CelikDepartment of Histology and Embryology, Akdeniz University School of Medicine, 07070, Antalya, Turkey.
Sinan OzkavukcuDepartment of Histology and Embryology, Ankara University School of Medicine, 06230, Ankara, Turkey.
Ciler Celik-OzenciDepartment of Histology and Embryology, Akdeniz University School of Medicine, 07070, Antalya, Turkey. cilerozenci@akdeniz.edu.tr.ORCID http://orcid.org/0000-0003-0370-8680
Akdeniz University · TRAnkara University · TR

Funding

Scientific and Technological Research Council of Turkey (TUBITAK) SBAG- 217S196
6 · The paper itself

Abstract

purposeWe investigated whether expression of activator proteins that control follicle reserve and growth change after ovarian tissue vitrification and re-transplantation. Moreover, we assessed whether inhibition of mTOR signaling pathway by rapamycin would protect primordial follicle reserve after ovarian tissue freezing/thawing and re-transplantation.

methodsFresh control, frozen/thawed, fresh-transplanted, frozen/thawed and transplanted, rapamycin/control, rapamycin fresh-transplanted, and rapamycin frozen-thawed and transplanted groups were established in rats. After freezing and thawing process, two ovaries were transplanted into the back muscle of the same rat. After 2 weeks, grafts were harvested, fixed, and embedded into paraffin block. Normal and atretic primordial/growing follicle count was performed in all groups. Ovarian tissues were evaluated for the dynamic expressions of Gdf-9, Bmp-15, KitL, Lif, Fgf-2, and p-s6K using immunohistochemistry, and H-score analyses were done.

resultsPrimordial follicle reserve reduced almost 50% after ovarian tissue re-transplantation. Expression of Gdf-9 and Lif increased significantly in primordial and growing follicles in frozen-thawed, fresh-transplanted, and frozen/thawed and transplanted groups, whereas expression of Bmp-15, KitL, and Fgf-2 decreased in primordial follicles. Freezing and thawing of ovarian tissue solely significantly increased p-s6K expression in primordial follicles, and on the other hand, suppression of mTORC1 pathway using rapamycin preserved the primordial follicle pool.

conclusionAltered expressions of activator proteins that regulate primordial follicle reserve and growth may lead to primordial follicle loss and rapamycin treatment can protect ovarian reserve after ovarian tissue cryopreservation/transplantation.

Indexed as

AnimalsCryopreservationFemaleFertility PreservationHumansOvarian FollicleOvarian ReserveOvaryPrimary PreventionRatsSirolimusTOR Serine-Threonine KinasesTransplantation, HeterologousVitrificationmTOR protein, ratSirolimusTOR Serine-Threonine KinasesFertility preservationmTOROvarian tissue cryopreservationPrimordial follicle reserveRapamycinTransplantation

Identifiers

PMID32651677
PMCPMC7492284
OpenAlexW3041632262

What OpenQuestion holds

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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.