Evidence map›Paper›PMID 30714532›Full record

ArticleAnti-inflammatory & anti-allergy agents in medicinal chemistry2020

Antioxidant Effects of Oleuropein on Hydrogen Peroxide-Induced Neuronal Stress- An

Altug Kucukgul, Mehmet M Isgor, Vesile Duzguner, Meryem N Atabay, Azime Kucukgul

Open access · greenAbstract read
In one paragraph

Article in Anti-inflammatory & anti-allergy agents in medicinal chemistry, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
1.1field-weighted citation impact, top 28% 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

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 25 citations in OpenAlex.

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  9. Adipocyte · 2020
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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

5 authors at 2 institutions in 1 country.

Altug KucukgulDepartment of Biochemistry, Faculty of Veterinary, Mustafa Kemal University, Hatay, Turkey.
Mehmet M IsgorDepartment of Biochemistry, Faculty of Veterinary, Mustafa Kemal University, Hatay, Turkey.
Vesile DuzgunerDepartment of Nursery, High School of Health Sciences, Ardahan University, Ardahan, Turkey.
Meryem N AtabayDepartment of Biochemistry, Faculty of Veterinary, Mustafa Kemal University, Hatay, Turkey.
Azime KucukgulDepartment of Aquaculture, Faculty of Fisheries, Munzur University, Tunceli, Turkey.
Mustafa Kemal University · TRArdahan University · TR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPersistent oxidative stress can lead to chronic inflammation and mediate most chronic diseases including neurological disorders. Oleuropein has been shown to be a potent antioxidant molecule in olive oil leaf having antioxidative properties.

objectiveThe aim of this study was to investigate the protective effects of oleuropein against oxidative stress in human glioblastoma cells.

methodsHuman glioblastoma cells (U87) were pretreated with oleuropein (OP) essential oil 10 µM. After 30 minutes, 100 µM H2O2 was added to the cells for three hours. Cell survival was quantified by colorimetric MTT assay. Glutathione level, total oxidant capacity, total antioxidant capacity and nitric oxide levels were determined by using specific spectrophotometric methods. The relative gene expression level of iNOS was performed by qRT-PCR method.

resultsAccording to viability results, the effective concentration of H2O2 (100µM) significantly decreased cell viability and oleuropein pretreatment significantly prevented the cell losses. Oleuropein regenerated total antioxidant capacity and glutathione levels decreased by H2O2 exposure. In addition, nitric oxide and total oxidant capacity levels were also decreased after administration of oleuropein in treated cells.

conclusionOleuropein was found to have potent antioxidative properties in human glioblastoma cells. However, further studies and validations are needed in order to understand the exact neuroprotective mechanism of oleuropein.

Indexed as

AntioxidantsCell Line, TumorCell SurvivalGlutathioneHumansHydrogen PeroxideIridoid GlucosidesIridoidsNeuronsNeuroprotective AgentsNitric Oxide Synthase Type IIOxidative StressAntioxidantsGlutathioneHydrogen PeroxideIridoid GlucosidesIridoidsNeuroprotective AgentsNitric Oxide Synthase Type IINOS2 protein, humanoleuropeinAnti-inflammatoryanti-oxidantglioblastomain vitroneuroprotectionoleuropein.

Identifiers

PMID30714532
PMCPMC7403681
OpenAlexW2914646448

What OpenQuestion holds

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LicenceCC BY-NC
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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.