Evidence map›Paper›PMID 27099799›Full record

ArticleBrain and behavior2016

Effects of progesterone on hyperoxia-induced damage in mouse C8-D1A astrocytes.

Friederike Weber, Stefanie Endesfelder, Christoph Bührer, Monika Berns

Open access · goldAbstract read
In one paragraph

Article in Brain and behavior, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
1.3field-weighted citation impact, top 14% 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

3 citing papers in PubMed, 4 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

4 authors at 1 institution in 1 country.

Friederike WeberDepartment of Neonatology Charité University Medical Center Berlin Germany.
Stefanie EndesfelderDepartment of Neonatology Charité University Medical Center Berlin Germany.
Christoph BührerDepartment of Neonatology Charité University Medical Center Berlin Germany.
Monika BernsDepartment of Neonatology Charité University Medical Center Berlin Germany.
Charité - Universitätsmedizin Berlin · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionThe birth of most mammals features a dramatic increase in oxygen while placenta-derived hormones such as β-estradiol and progesterone plummet. In experimental newborn animals, transiently elevated oxygen concentrations cause death of neurons, astrocytes, and oligodendrocyte precursors. High oxygen has been associated with cerebral palsy in human preterm infants while progesterone is being used to prevent preterm delivery and investigated as a neuroprotective agent.

methodsIn this study, we investigated the effects of hyperoxia (80% O2 for 24, 48, and 72 h) on cultured C8-D1A astrocytes in the presence or absence of progesterone at concentrations ranging from 10(-9) to 10(-5) mol/L.

resultsHyperoxia measured by methytetrazolium assay (MTT) reduced cell viability, increased release of lactate dehydrogenase (LDH), reduced carboxyfluorescein diacetate succinimidyl ester (CFSE)-assessed cell proliferation, and downregulated Cylin D2 expression. Progesterone did not affect any of these hyperoxia-mediated indicators of cell death or malfunctioning. Real-time PCR analysis showed that hyperoxia caused downregulation of the progesterone receptors PR-AB und PR-B.

conclusionsOur experiments showed that there was no protective effect of progesterone on hyperoxia-inducted cell damage on mouse C8-D1A astrocytes. Down regulation of the progesterone receptors might be linked to the lack of protective effects.

Indexed as

AnimalsApoptosisAstrocytesCell Culture TechniquesCell ProliferationHyperoxiaMiceNeuroprotective AgentsOligodendrogliaOxygenProgesteroneReal-Time Polymerase Chain ReactionReceptors, ProgesteroneNeuroprotective AgentsOxygenProgesteroneReceptors, ProgesteroneAstrocytescell proliferationhyperoxiaprogesteroneprogesterone receptor

Identifiers

PMID27099799
PMCPMC4831416
OpenAlexW2301936356

What OpenQuestion holds

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LicenceCC BY
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.