Evidence map›Paper›PMID 21810275›Full record

ArticleBMC neuroscience2011

Grape seed proanthocyanidin extract inhibits glutamate-induced cell death through inhibition of calcium signals and nitric oxide formation in cultured rat hippocampal neurons.

Seo-Hee Ahn, Hee Jung Kim, Imju Jeong, Yi Jae Hong, Myung-Jun Kim, Duck-Joo Rhie, Yang-Hyeok Jo, Sang June Hahn, Shin Hee Yoon

Abstract read
In one paragraph

Article in BMC neuroscience, 2011. 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
–field-weighted citation impact
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.

  1. Review
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  7. Cyanidin-3-glucoside inhibits amyloid βThe Korean journal of physiology & pharmacology : official journal of the Korean Physiological Society and the Korean Society of Pharmacology · 2018
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  8. Review
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  13. Cyanidin-3-glucoside Inhibits ATP-induced Intracellular Free Ca(2+) Concentration, ROS Formation and Mitochondrial Depolarization in PC12 Cells.The Korean journal of physiology & pharmacology : official journal of the Korean Physiological Society and the Korean Society of Pharmacology · 2014
    Article
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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

9 authors.

Seo-Hee AhnDepartment of Physiology, College of Medicine, The Catholic University of Korea, 505 Banpo-dong, Seocho-gu, Seoul 137-701, Korea.
Hee Jung Kim
Imju Jeong
Yi Jae Hong
Myung-Jun Kim
Duck-Joo Rhie
Yang-Hyeok Jo
Sang June Hahn
Shin Hee Yoon

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundProanthocyanidin is a polyphenolic bioflavonoid with known antioxidant activity. Some flavonoids have a modulatory effect on [Ca²⁺]i. Although proanthocyanidin extract from blueberries reportedly affects Ca²⁺ buffering capacity, there are no reports on the effects of proanthocyanidin on glutamate-induced [Ca²⁺]i or cell death. In the present study, the effects of grape seed proanthocyanidin extract (GSPE) on glutamate-induced excitotoxicity was investigated through calcium signals and nitric oxide (NO) in cultured rat hippocampal neurons.

resultsPretreatment with GSPE (0.3-10 μg/ml) for 5 min inhibited the [Ca²⁺]i increase normally induced by treatment with glutamate (100 μM) for 1 min, in a concentration-dependent manner. Pretreatment with GSPE (6 μg/ml) for 5 min significantly decreased the [Ca²⁺]i increase normally induced by two ionotropic glutamate receptor agonists, N-methyl-D-aspartate and alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA). GSPE further decreased AMPA-induced response in the presence of 1 μM nimodipine. However, GSPE did not affect the 50 mM K+-induced increase in [Ca²⁺]i. GSPE significantly decreased the metabotropic glutamate receptor agonist (RS)-3,5-Dihydroxyphenylglycine-induced increase in [Ca²⁺]i, but it did not affect caffeine-induced response. GSPE (0.3-6 μg/ml) significantly inhibited synaptically induced [Ca²⁺]i spikes by 0.1 mM [Mg²⁺]o. In addition, pretreatment with GSPE (6 μg/ml) for 5 min inhibited 0.1 mM [Mg²⁺]o- and glutamate-induced formation of NO. Treatment with GSPE (6 μg/ml) significantly inhibited 0.1 mM [Mg²⁺]o- and oxygen glucose deprivation-induced neuronal cell death.

conclusionsAll these data suggest that GSPE inhibits 0.1 mM [Mg²⁺]o- and oxygen glucose deprivation-induced neurotoxicity through inhibition of calcium signals and NO formation in cultured rat hippocampal neurons.

Indexed as

AnimalsAntioxidantsCalcium SignalingCell DeathCells, CulturedDisease Models, AnimalGlutamatesGrape Seed ExtractHippocampusNeuronsNitric OxideProanthocyanidinsRatsAntioxidantsGlutamatesGrape Seed ExtractGrape Seed ProanthocyanidinsNitric OxideProanthocyanidins

Identifiers

PMID21810275
PMCPMC3160962

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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.