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Published on: February 7, 2018
Role of oxidative stress in Deoxynivalenol induced toxicity
Sakshi Mishra1, Premendra D Dwivedi2, Haushila P Pandey3
1Food, Drug and Chemical Toxicology, CSIR-Indian Institute of Toxicology Research, P.O. Box No. 80, Mahatma Gandhi Marg, Lucknow 226 001, India; Department of Biochemistry, Banaras Hindu University (BHU), Varanasi, India.
Abstract:
Deoxynivalenol (DON) is a Fusarium toxin that causes a variety of toxic effects with symptoms such as diarrhoea and low weight gain. To date, no review has addressed the toxicity of DON in relation to oxidative stress. The focus of this article is primarily intended to summarize the information associated with oxidative stress as a plausible mechanism for DON-induced toxicity. The present review shows that over the past two decades, several investigators have documented the generation of reactive oxygen species (ROS) and reactive nitrogen species (RNS) in oxidative stress as a result of DON treatment and have correlated them with various types of toxicity. The evidence for induction of an oxidative stress response resulting from DON exposure has been more focused on in vitro models and is relatively lacking in in vivo studies. Hence, more emphasis should be laid on in vivo investigations with doses that are commonly encountered in food products. Since DON is commonly found in food and feed, the cellular effects of this toxin in relation to oxidative stress, as well as effective measures to combat its toxicity, are important aspects to be considered for future studies.
Insights
Deoxynivalenol (DON), a common food toxin, induces toxicity through oxidative stress, generating reactive oxygen and nitrogen species. Further in vivo research is needed to understand its effects at typical dietary levels.
Area of Science:
- Toxicology
- Biochemistry
- Food Safety
Background:
- Deoxynivalenol (DON) is a prevalent Fusarium toxin causing adverse health effects like diarrhea and reduced weight gain.
- Oxidative stress as a mechanism for DON toxicity has not been comprehensively reviewed.
- DON is frequently detected in human and animal food supplies.
Purpose of the Study:
- To summarize existing knowledge on oxidative stress as a mechanism for DON-induced toxicity.
- To highlight the role of reactive oxygen species (ROS) and reactive nitrogen species (RNS) in DON toxicity.
- To identify gaps in current research, particularly regarding in vivo studies.
Main Methods:
- Literature review of studies investigating DON toxicity and oxidative stress.
- Analysis of documented evidence on ROS and RNS generation following DON exposure.
- Assessment of in vitro versus in vivo study findings.
Main Results:
- Multiple studies demonstrate that DON exposure leads to the generation of ROS and RNS, contributing to toxicity.
- The majority of evidence linking DON to oxidative stress induction comes from in vitro models.
- There is a notable lack of in vivo studies examining DON's effects at commonly encountered dietary concentrations.
Conclusions:
- Oxidative stress is a plausible mechanism underlying DON toxicity.
- Further in vivo research is crucial to validate these findings in more relevant physiological contexts.
- Understanding DON's cellular effects and developing mitigation strategies are vital for public health and animal welfare.
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