Evidence map›Paper›PMID 31907049›Full record

Observational studyJournal of ovarian research2020

Lipid droplets in granulosa cells are correlated with reduced pregnancy rates.

Shira Raviv, Shay Hantisteanu, Shilhav Meisel Sharon, Yuval Atzmon, Mediea Michaeli, Einat Shalom-Paz

Open access · goldAbstract readObservational Study
In one paragraph

Observational study in Journal of ovarian research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
2.9field-weighted citation impact, top 9% 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

24 citing papers in PubMed, 35 citations in OpenAlex.

  1. Article
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  11. Unraveling the role of lipid droplets and perilipin 2 in bovine luteal cells.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2024
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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 at 1 institution in 1 country.

Shira RavivIn Vitro Fertilization Department, Hillel Yaffe Medical Center, Hadera, Israel.ORCID http://orcid.org/0000-0001-5987-3461
Shay HantisteanuObstetrics, Fertility and Gynecology Research Laboratory, Hillel Yaffe Medical Center, Hadera, Israel.
Shilhav Meisel SharonObstetrics, Fertility and Gynecology Research Laboratory, Hillel Yaffe Medical Center, Hadera, Israel.
Yuval AtzmonIn Vitro Fertilization Department, Hillel Yaffe Medical Center, Hadera, Israel.
Mediea MichaeliIn Vitro Fertilization Department, Hillel Yaffe Medical Center, Hadera, Israel.
Einat Shalom-PazIn Vitro Fertilization Department, Hillel Yaffe Medical Center, Hadera, Israel. einatshalompaz@gmail.com.
Hillel Yaffe Medical Center · IL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLipids are an important source for energy production during oocyte maturation. The accumulation of intracellular lipids binds to proteins to form lipid droplets. This may lead to cellular lipotoxicity. The impact of lipotoxicity on cumulus and granulosa cells has been reported. This pilot study evaluated their correlation to oocyte and embryo quality.

designProspective case-control study.

settingReferral IVF unit. PATIENTS: Women younger than age 40, undergoing IVF with intracytoplasmic sperm injection.

interventions15 women with BMI > 30 (high BMI) and 26 women with BMI < 25 (low BMI) were enrolled. IVF outcomes were compared between groups based on BMI. Lipid content in cumulus and granulosa cells was evaluated using quantitative and descriptive methods. Lipid profile, hormonal profile and C-reactive protein were evaluated in blood and follicular fluid samples. Demographic and treatment data, as well as pregnancy rates were collected from electronic medical records.

resultsHigher levels of LDL and CRP, slower cell division rate and lower embryo quality were found in the group with high BMI. There was no difference in pregnancy rates between groups. In light of these findings, treatment outcomes were reanalyzed according to patients who became pregnant and those who did not. We found that patients who conceived had significantly lower fat content in the granulosa cells, reflected by mean fluorescence intensity recorded by flow cytometry analysis (23,404 vs. 9370, P = 0.03).

conclusionsBMI has no effect on lipid content in cumulus and granulosa cells, and does not affect likelihood of pregnancy. However, women who achieved pregnancy, regardless of their BMI, had lower lipid levels in their granulosa cells. This finding is important and further study is needed to evaluate lipid content in granulosa cells as a potential predictor of IVF treatment success.

Indexed as

Fertilization in VitroGranulosa CellsLipid DropletsAdultBody Mass IndexCase-Control StudiesCumulus CellsFemaleHumansLipidsOocytesPilot ProjectsPregnancyPregnancy RateProspective StudiesSperm Injections, IntracytoplasmicLipidsBMICRP leveCumulus cellsGranulosa cellsLipid droplets

Identifiers

PMID31907049
PMCPMC6945749
OpenAlexW2998833991

What OpenQuestion holds

Textmetadata
LicenceCC BY
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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.