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      Homeostatic changes of trace elements in diazinon toxicity in rat model: The beneficial role of resveratrol

      research-article
      a , 1 , b , * , 2
      Toxicology Reports
      Elsevier
      Diazinon, Resveratrol, Liver injury, Heart injury, Kidney injury

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          Abstract

          Background and objectives

          Diazinon (DZN) is a cholinesterase inhibitor widely used to relieve agricultural pests and upgrade the productivity of crops. Resveratrol (Res), as a phenolic plant compound, has a protective role against free radicals. This study intended to evaluate the impacts of Res on homeostatic disturbances induced by DZN in rats.

          Method

          Twenty-four Wistar rats (4 weeks) were randomly distributed into four groups of six animals each. The first group (control group) received corn oil. The second group (Res group) received orally Res (20 mg/kg. The third group (DZN group) received the oral DZN (70 mg/kg); the fourth group (Res plus DZN group) was treated simultaneously with DZN (70 mg/kg) and Res (20 mg/kg); for a period of 5 weeks. The serum, liver, kidney, and heart levels of the Copper (Cu), zinc (Zn), iron (Fe), selenium (Se), and magnesium (Mg) as main trace elements are measured.

          Results

          DZN treatment decreased significantly serum, liver, kidney, and heart levels of Cu, Zn, Fe, Se, and Mg in comparison with the control group. Res administration enhanced serum, liver, kidney, and content of heart elements compared to the DZN group.

          Conclusions

          These results suggested that Res could ameliorate the homeostatic imbalance induced by DZN. Res had a protective effect against DZN-provoking heart, renal, and hepatic toxicity in animal models.

          Graphical Abstract

          Highlights

          • Diazinon (DZN) is a cholinesterase inhibitor used to relieve agricultural pests.

          • Resveratrol (Res) plant compound has a protective role against free radicals.

          • DZN treatment decreased significantly serum and tissue levels of Cu, Zn, Fe, Se, and Mg.

          • Res administration enhanced serum, liver, kidney, and content of heart elements.

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          Most cited references48

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          Role of Catalase in Oxidative Stress- and Age-Associated Degenerative Diseases

          Reactive species produced in the cell during normal cellular metabolism can chemically react with cellular biomolecules such as nucleic acids, proteins, and lipids, thereby causing their oxidative modifications leading to alterations in their compositions and potential damage to their cellular activities. Fortunately, cells have evolved several antioxidant defense mechanisms (as metabolites, vitamins, and enzymes) to neutralize or mitigate the harmful effect of reactive species and/or their byproducts. Any perturbation in the balance in the level of antioxidants and the reactive species results in a physiological condition called “oxidative stress.” A catalase is one of the crucial antioxidant enzymes that mitigates oxidative stress to a considerable extent by destroying cellular hydrogen peroxide to produce water and oxygen. Deficiency or malfunction of catalase is postulated to be related to the pathogenesis of many age-associated degenerative diseases like diabetes mellitus, hypertension, anemia, vitiligo, Alzheimer's disease, Parkinson's disease, bipolar disorder, cancer, and schizophrenia. Therefore, efforts are being undertaken in many laboratories to explore its use as a potential drug for the treatment of such diseases. This paper describes the direct and indirect involvement of deficiency and/or modification of catalase in the pathogenesis of some important diseases such as diabetes mellitus, Alzheimer's disease, Parkinson's disease, vitiligo, and acatalasemia. Details on the efforts exploring the potential treatment of these diseases using a catalase as a protein therapeutic agent have also been described.
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            Redox- and non-redox-metal-induced formation of free radicals and their role in human disease.

            Transition metal ions are key elements of various biological processes ranging from oxygen formation to hypoxia sensing, and therefore, their homeostasis is maintained within strict limits through tightly regulated mechanisms of uptake, storage and secretion. The breakdown of metal ion homeostasis can lead to an uncontrolled formation of reactive oxygen species, ROS (via the Fenton reaction, which produces hydroxyl radicals), and reactive nitrogen species, RNS, which may cause oxidative damage to biological macromolecules such as DNA, proteins and lipids. An imbalance between the formation of free radicals and their elimination by antioxidant defense systems is termed oxidative stress. Most vulnerable to free radical attack is the cell membrane which may undergo enhanced lipid peroxidation, finally producing mutagenic and carcinogenic malondialdehyde and 4-hydroxynonenal and other exocyclic DNA adducts. While redox-active iron (Fe) and copper (Cu) undergo redox-cycling reactions, for a second group of redox-inactive metals such as arsenic (As) and cadmium (Cd), the primary route for their toxicity is depletion of glutathione and bonding to sulfhydryl groups of proteins. While arsenic is known to bind directly to critical thiols, other mechanisms, involving formation of hydrogen peroxide under physiological conditions, have been proposed. Redox-inert zinc (Zn) is the most abundant metal in the brain and an essential component of numerous proteins involved in biological defense mechanisms against oxidative stress. The depletion of zinc may enhance DNA damage by impairing DNA repair mechanisms. Intoxication of an organism by arsenic and cadmium may lead to metabolic disturbances of redox-active copper and iron, with the occurrence of oxidative stress induced by the enhanced formation of ROS/RNS. Oxidative stress occurs when excessive formation of ROS overwhelms the antioxidant defense system, as is maintained by antioxidants such as ascorbic acid, alpha-tocopherol, glutathione (GSH), carotenoids, flavonoids and antioxidant enzymes which include SOD, catalase and glutathione peroxidase. This review summarizes current views regarding the role of redox-active/inactive metal-induced formation of ROS, and modifications to biomolecules in human disease such as cancer, cardiovascular disease, metabolic disease, Alzheimer's disease, Parkinson's disease, renal disease, blood disorders and other disease. The involvement of metals in DNA repair mechanisms, tumor suppressor functions and interference with signal transduction pathways are also discussed.
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              Zinc and Oxidative Stress: Current Mechanisms

              Oxidative stress is a metabolic dysfunction that favors the oxidation of biomolecules, contributing to the oxidative damage of cells and tissues. This consequently contributes to the development of several chronic diseases. In particular, zinc is one of the most relevant minerals to human health, because of its antioxidant properties. This review aims to provide updated information about the mechanisms involved in the protective role of zinc against oxidative stress. Zinc acts as a co-factor for important enzymes involved in the proper functioning of the antioxidant defense system. In addition, zinc protects cells against oxidative damage, acts in the stabilization of membranes and inhibits the enzyme nicotinamide adenine dinucleotide phosphate oxidase (NADPH-Oxidase). Zinc also induces the synthesis of metallothioneins, which are proteins effective in reducing hydroxyl radicals and sequestering reactive oxygen species (ROS) produced in stressful situations, such as in type 2 diabetes, obesity and cancer. Literature provides strong evidence for the role of zinc in the protection against oxidative stress in several diseases.
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                Author and article information

                Contributors
                Journal
                Toxicol Rep
                Toxicol Rep
                Toxicology Reports
                Elsevier
                2214-7500
                30 August 2024
                December 2024
                30 August 2024
                : 13
                : 101719
                Affiliations
                [a ]Nutrition Health Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
                [b ]Nutrition Health Research Center, Center of Excellence for Occupational Health, Research Center for Health Sciences, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran
                Author notes
                [* ]Correspondence to: Nutrition Health Research Center, Hamadan University of Medical Sciences, Hamadan, Iran. f.mehri@ 123456umah.ac.ir
                [1]

                0000–0001-5718–7126- ORCID

                [2]

                0000–0003-0106–245X- ORCID

                Article
                S2214-7500(24)00102-1 101719
                10.1016/j.toxrep.2024.101719
                11409013
                39295954
                04b812ab-5490-44cd-bca9-1fc5b8e1cbb9
                © 2024 Published by Elsevier B.V.

                This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

                History
                : 10 March 2024
                : 26 August 2024
                : 27 August 2024
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                diazinon,resveratrol,liver injury,heart injury,kidney injury

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