Original Article

Protective effect of flaxseed oil on diazinon-induced cardiotoxicity in rats in sub-chronic exposure

Protective effects of Flaxseed oil on diazinon toxicity

Abstract

Background and objectives: Diazinon (DZN), an organophosphate insecticide, used in households and agriculture for several decades, has a variety of adverse effects on different organs of humans. In this study, we studied the possible cardiotoxicity effects of flaxseed oil (FS oil) on Diazinon (DZN) caused oxidative stress in the heart tissue of rats.

Method: Totally thirty male Wistar rats (60-200 g) were allocated into five groups: The control group (received 1 ml normal saline orally), flaxseed oil group (received 200 mg/kg/day FS oil, p.o.), Diazinon group (received 70 mg/kg/day DZN, p.o.), and co-treatment groups (received DZN 70 mg/kg/day plus flaxseed oil at doses of 100 and 200 mg/kg/day). Oxidative stress biomarkers including malondialdehyde (MDA), total oxidant status (TOS), catalase (CAT), Superoxide dismutase (SOD), and total thiol group (TTG) were investigated in heart tissue. Moreover, the hematoxylin and eosin (H&E) staining method was used for the evaluation of morphology and pathology of heart tissue.

Results and conclusion: DZN significantly increased the levels of MDA and TOS and also decreased the content of CAT, SOD, and TTG in heart tissue. Flaxseed oil supplement consumption significantly reversed oxidative stress status, so these effects were dose-dependent. Furthermore, FS oil ameliorates heart histopathological alterations induced by DZN. Our findings confirmed DZN-induced heart toxicity and flaxseed oil had protective effects by decreasing oxidative stress markers and improving anti-oxidative status. It was shown that FS oil supplementation has protective effects on the heart against toxicity induced by DZN.

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Keywords
Diazinon; Cardio-toxicity; Flaxseed oil; Heart; Oxidative stress

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1.
Mehri F, Amirsadeghi S, Ranjbar A, Esfahani M, Shiri E. Protective effect of flaxseed oil on diazinon-induced cardiotoxicity in rats in sub-chronic exposure. J Tehran Heart Cent. 2024;.