Evidence map›Paper›PMID 20407020›Full record

ArticleJournal of lipid research2010

Human luteinized granulosa cells secrete apoB100-containing lipoproteins.

Thomas Gautier, Steffi Becker, Véronique Drouineaud, Franck Ménétrier, Paul Sagot, Jerzy-Roch Nofer, Sören von Otte, Laurent Lagrost, David Masson, Uwe J F Tietge

Open access · hybridAbstract read
In one paragraph

Article in Journal of lipid research, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
1.3field-weighted citation impact, top 17% 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

17 citing papers in PubMed, 46 citations in OpenAlex.

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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

10 authors at 5 institutions in 4 countries.

Thomas GautierFaculté de Médecine, INSERM UMR866 Lipides, Nutrition, Cancer, Dijon, France.
Steffi Becker
Véronique Drouineaud
Franck Ménétrier
Paul Sagot
Jerzy-Roch Nofer
Sören von Otte
Laurent Lagrost
David Masson
Uwe J F Tietge
Inserm · FRChristian-Albrechts-Universität zu Kiel · DEKlinik für Frauenheilkunde · DEUniversity Medical Center Groningen · NLUniversity of Münster · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Thus far, liver, intestine, heart, and placenta have been shown to secrete apolipoprotein (apo)B-containing lipoproteins. In the present study, we first investigated lipoproteins in human follicular fluid (FF), surrounding developing oocytes within the ovary, as well as in corresponding plasma samples (n = 12). HDL cholesterol within FF correlated well with plasma HDL cholesterol (r = 0.80, P < 0.01), whereas VLDL cholesterol did not, indicating that VLDL in FF might originate directly from the granulosa cells producing FF. Primary human granulosa cells expressed apoB, microsomal triglyceride transfer protein, and apoE, but not the apoB-editing enzyme apobec-1. Using (3)H-leucine, we show that granulosa cells secrete apoB100-containing lipoproteins and that secretion can be stimulated by adding oleate to the medium (+83%). With electron microscopy, apoB-containing lipoproteins within the secretory pathway of human granulosa cells were directly visualized. Finally, we found a positive relationship between apoB levels in FF and improved fertility parameters in a population of 27 women undergoing in vitro fertilization. This study demonstrates that human granulosa cells assemble and secrete apoB100-containing lipoproteins, thereby identifying a novel cell type equipped with these properties. These results might have important implications for female infertility phenotypes as well as for the development of drugs targeting the VLDL production pathway.

Indexed as

LuteinizationApolipoprotein B-100Carrier ProteinsCholesterol, HDLCholesterol, VLDLFemaleFertilityFollicular FluidGene Expression RegulationGranulosa CellsHep G2 CellsHumansMicroscopy, ElectronOleic AcidApolipoprotein B-100Carrier ProteinsCholesterol, HDLCholesterol, VLDLmicrosomal triglyceride transfer proteinOleic Acid

Identifiers

PMID20407020
PMCPMC2903810
OpenAlexW2122684581

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.