Evidence map›Paper›PMID 33918675›Full record

ArticleToxins2021

Ochratoxin A Induces Oxidative Stress in HepG2 Cells by Impairing the Gene Expression of Antioxidant Enzymes.

Enrique García-Pérez, Dojin Ryu, Chan Lee, Hyun Jung Lee

Open access · goldAbstract read
In one paragraph

Article in Toxins, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
6.4field-weighted citation impact, top 4% 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

21 citing papers in PubMed, 47 citations in OpenAlex.

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  9. Frontiers in pharmacology · 2025
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  13. Aflatoxin B1 decreased flesh flavor and inhibited muscle development in grass carp (Animal nutrition (Zhongguo xu mu shou yi xue hui) · 2024
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  17. Isolation of Fucoxanthin fromBiomedicines · 2023
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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 3 institutions in 2 countries.

Enrique García-PérezSchool of Food Science, Washington State University, P.O. Box 646376, Pullman, WA 99164-6376, USA.
Dojin RyuDepartment of Animal, Veterinary, and Food Sciences, University of Idaho, 875 Perimeter Drive MS 2330, Moscow, ID 83844-2330, USA.ORCID 0000-0003-3424-1163
Chan LeeDepartment of Food Science and Technology, Chung-Ang University, Anseong, Gyeonggi 17546, Korea.ORCID 0000-0003-2155-7732
Hyun Jung LeeDepartment of Animal, Veterinary, and Food Sciences, University of Idaho, 875 Perimeter Drive MS 2330, Moscow, ID 83844-2330, USA.ORCID 0000-0001-8105-821X
University of Idaho · USChung-Ang University · KRWashington State University · US

Funding

Chung-Ang University Research GrantCONACYT-Mexico CVU 335085National Institute of Food and Agriculture 2011-67005-20676
6 · The paper itself

Abstract

Ochratoxin A (OTA) is a mycotoxin frequently found in raw and processed foods. While it is considered a possible human carcinogen, the mechanism of action remains unclear. OTA has been shown to be hepatotoxic in both in vitro and in vivo models and oxidative stress may be one of the factors contributing to its toxicity. Hence, the effect of OTA on human hepatocellular carcinoma, HepG2 cells, was investigated on oxidative stress parameters. The cytotoxicity of OTA on HepG2 was time- and dose-dependent within a range between 0.1 and 10 µM; while 100 μM of OTA increased the intracellular reactive oxygen species (ROS) in a time-dependent manner. Additionally, the levels of glutathione (GSH) were increased by 9.7% and 11.3% at 10 and 100 nM of OTA, respectively; while OTA at 100 μM depleted GSH by 40.5% after 24 h exposure compared with the control. Finally, the mRNA level of catalase (CAT) was downregulated by 2.33-, 1.92-, and 1.82-fold after cells were treated with 1, 10, and 10 μM OTA for 24 h, respectively; which was linked to a decrease in CAT enzymatic activity. These results suggest that oxidative stress is involved in OTA-mediated toxicity in HepG2 cells.

Indexed as

Carcinoma, HepatocellularCatalaseCell SurvivalDose-Response Relationship, DrugDown-RegulationGene Expression Regulation, EnzymologicGlutathioneHep G2 CellsHumansLiver NeoplasmsOchratoxinsOxidative StressReactive Oxygen SpeciesTime FactorsCatalaseGlutathioneochratoxin AOchratoxinsReactive Oxygen SpecieshepatotoxicityHepG2ochratoxin A (OTA)oxidative stressreactive oxygen species (ROS)

Identifiers

PMID33918675
PMCPMC8068875
OpenAlexW3154864510

What OpenQuestion holds

Textmetadata
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.