Abstract
Although iron is a first-line pro-oxidant that modulates clinical manifestations of various systemic diseases, including diabetes, the individual tissue damage generated by active oxidant insults has not been demonstrated in current animal models of diabetes. We tested the hypothesis that oxidative stress is involved in the severity of the tissues injury when iron supplementation is administered in a model of type 1 diabetes. Streptozotocin (Stz)-induced diabetic and non-diabetic Fischer rats were maintained with or without a treatment consisting of iron dextran ip at 0.1 mL day−1 doses administered for 4 days at intervals of 5 days. After 3 weeks, an extensive increase (p < 0.001) in the production of reactive oxygen species (ROS) in neutrophils of the diabetic animals on iron overload was observed. Histological analysis revealed that this treatment also resulted in higher (p < 0.05) tissue iron deposits, a higher (p < 0.001) number of inflammatory cells in the pancreas, and apparent cardiac fibrosis, as shown by an increase (p < 0.05) in type III collagen levels, which result in dysfunctional myocardial. Carbonyl protein modification, a marker of oxidative stress, was consistently higher (p < 0.01) in the tissues of the iron-treated rats with diabetes. Moreover, a significant positive correlation was found between ROS production and iron pancreas stores (r = 0.42, p < 0.04), iron heart stores (r = 0.54, p < 0.04), and change of the carbonyl protein content in pancreas (r = 0.49, p < 0.009), and heart (r = 0.48, p < 0.02). A negative correlation was still found between ROS production and total glutathione content in pancreas (r = −0.50, p < 0.03) and heart (r = −0.45, p < 0.04). In conclusion, our results suggest that amplified toxicity in pancreatic and cardiac tissues in rats with diabetes on iron overload might be attributed to increased oxidative stress.
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Abbreviations
- AGEs:
-
Advanced glycation end products
- ANOVA:
-
Analysis of variance
- AOAC:
-
Association of official analytical chemists
- BSA:
-
Bovine serum albumin
- C:
-
Control group
- CAT:
-
Catalase
- CI:
-
Control iron group
- DM:
-
Diabetes mellitus
- D:
-
Diabetic group
- DI:
-
Diabetic iron group
- DNPH:
-
2,4-Dinitrophenylhydrazine
- DPI:
-
Diphenylene iodonium
- DTNB:
-
5,5-Dithiobis(2-nitrobenzoic acid)
- GSH-Px:
-
Glutathione peroxidase
- GSSG:
-
Oxidized glutathione
- GSH:
-
Reduced glutathione
- H2O2 :
-
Hydrogen peroxide
- LIBC:
-
Latent iron-binding capacity
- OH− :
-
Hydroxyl radicals
- O2 − :
-
Superoxide anions
- PB:
-
Pearl’s Prussian blue
- PPAR-α:
-
Peroxisome proliferator activated receptor-α
- RLU/min:
-
Relative units of light/min
- ROS:
-
Reactive oxygen species
- Stz:
-
Streptozotocin
- SOD:
-
Superoxide dismutase
- TCA:
-
Trichloroacetic acid
- TIBC:
-
Total iron-binding capacity
- TNB:
-
5-Thio-2-nitrobenzoic acid
- ZC3b:
-
Zymosan
References
Aebi H (1984) Catalase in vitro. Methods Enzymol 105:121–126
Association of Official Analytical Chemists (1980) Official methods of analysis. AOAC, Washington
Bicalho HM, Gontijo MC, Nogueira-Machado JA (1981) A simple technique for simultaneous human leuckocytes separation. J Immunol 40:115–116
Brower GL, Gardner JD, Forman MF, Murray DB, Voloshenyuk T, Levick SP (2006) The relationship between myocardial extracellular matrix remodeling and ventricular function. Eur J Cardiothorac Surg 30:604–610
Chaves M, Rocha-Vieira E, Pereira dos Reis A, de Lima e Silva R, Gerzstein NC, Nogueira-Machado JA (2000) Increase of reactive oxygen (ROS) and nitrogen (RNS) species generated by phagocyting granulocytes related to age. Mech Ageing Dev 119:1–8
Cooksey RC, Jouihan HA, Ajioka RS, Hazel MW, Jones DL, Kushner JP, McClain DA (2004) Oxidative stress, β-cell apoptosis, and decreased insulin secretory capacity in mouse models of hemochromatosis. Endocrinology 145:5305–5312
Dikow R, Schwenger V, Schömig M, Ritz E (2002) How should we manage anaemia in patients with diabetes? Nephrol Dial Transplant 17:67–72
Dong H, Altomonte J, Morral N, Meseck M, Thung SN, Woo SL (2002) Basal insulin gene expression significantly improves conventional insulin therapy in type 1 diabetic rats. Diabetes 51:130–138
Erejuwa OO, Sulaiman SA, Wahab MS, Sirajudeen KN, Salleh MS, Gurtu S (2011) Glibenclamide or metformin combined with honey improves glycemic control in streptozotocin-induced diabetic rats. Int J Biol Sci 7:244–252
Fawwaz RA, Winchell HS, Pollycove M, Sargent T (1967) Hepatic iron deposition in humans. I. First-pass hepatic deposition of intestinally absorbed iron in patients with low plasma latent iron-binding capacity. Blood 30:417–424
Fernández-Real JM, López-Bermejo A, Ricart W (2002) Cross-talk between iron metabolism and diabetes. Diabetes 51:2348–2354
Guerra JF, Magalhães CL, Costa DC, Silva ME, Pedrosa ML (2011) Dietary açaí modulates ROS production by neutrophis and gene expression of liver antioxidant enzymes in rats. J Clin Biochem Nutr 49:188–194
Gutteridge JMC (1994) Biological origin of free radicals and mechanisms of antioxidant protection. Chem Biol Interact 91:113–140
Halliwell B, Cross CE, Gutteridge JMC (1992) Free radicals, antioxidants and human disease: where are we now? J Lab Clin Med 119:598–620
Holbein BE (1980) Iron-controlled infection with Neisseria meningitides in mice. Infect Immun 29:886–891
Johnson WM, Wilson-Delfosse AL, Mieyal JJ (2012) Dysregulation of glutathione homeostasis in neurodegenerative diseases. Nutrients 9:1399–1440
Junod A, Lambert AE, Orci L, Pictet R, Gonet AE, Renold AE (1982) Studies on diabetogenic action of streptozotocin. Proc Soc Exp Biol Med 126:201–205
Kono Y, Fridovich I (1982) Superoxide radical inhibits catalase. J Biol Chem 257:5751–5754
Levine RL, Williams JA, Stadtman ER, Shacter E (1994) Carbonyl assays for determination of oxidatively modified proteins. Methods Enzymol 233:346–357
Lipinski B (2011) Hydroxyl radical and its scavengers in health and disease. Oxid Med Cell Longev 2011:809696
Lowry OH, Rosebrough NJ, Farr AL, Randall RJ (1951) Protein measurement with the folin-phenol reagent. J Biol Chem 193:265–275
Marin DP, Bolin AP, Macedo RCS, Sampaio SC, Otton R (2011) ROS production in neutrophils from alloxan-induced diabetic rats treated in vivo with astaxanthin. Int Immunopharm 11:103–109
Marklund S, Marklund G (1974) Involvement of the superoxide anion radical in the autoxidation of pyrogallol and a convenient assay for superoxide dismutase. Eur J Biochem 47:469–474
Nishikawa T, Araki E (2007) Impact of mitochondrial ROS production in the pathogenesis of diabetes mellitus and its complications. Antioxid Redox Signal 9:343–353
Noetzli LJ, Carson SM, Nord AS, Coates TD, Wood JC (2008) Longitudinal analysis of heart and liver iron in thalassemia major. Blood 112:2973–2978
Noetzli LJ, Papudesi J, Coates TD, Wood JC (2009) Pancreatic iron loading predicts cardiac iron loading in thalassemia major. Blood 5:4021–4026
Oudit GY, Trivieri MG, Khaper N, Husain T, Wilson GJ, Liu P, Sole MJ, Backx PH (2004) Taurine supplementation reduces oxidative stress and improves cardiovascular function in an iron-overload murine model. Circulation 109:1877–1885
Oudit GY, Trivieri MG, Khaper N, Liu PP, Backx PH (2006) Role of L-type Ca2+ channels in iron transport and iron-overload cardiomyopathy. J Mol Med 84:349–364
Porte D Jr, Schwartz MW (1996) Diabetes complications: why is glucose potentially toxic? Science 272:699–700
Rösen P, Nawroth PP, King G, Moller W, Tritschler HJ, Packer L (2001) The role of oxidative stress in the onset and progression of diabetes and its complications: a summary of a Congress Series sponsored by UNESCO-MCBN, the American Diabetes Association and the German Diabetes Society. Diabetes Metab Res Rev 17:189–212
Rossoni-Júnior JV, Araújo GR, Pádua BC, Chaves MM, Pedrosa ML, Silva ME, Costa DC (2012) Annato extract and β-carotene modulate the production of reactive oxygen species/nitric oxide in neutrophils from diabetic rats. J Clin Biochem Nutr 50:177–183
Sies H (1997) Oxidative stress: oxidants and antioxidants. Exp Physiol 82:291–295
Silva M, de Freitas Bonomo L, R de Paula Oliveira, de Lima WG, Silva ME, Pedrosa ML (2011) Effects of the interaction of diabetes and iron supplementation on hepatic and pancreatic tissues, oxidative stress markers, and liver peroxisome proliferator-activated receptor-α expression. J Clin Biochem Nutr 49:102–108
Stoltzfus RJ, Dreyfuss ML (1998) Guidelines for the use of iron supplements to prevent and treat iron deficiency anemia. ILSI Press, Washington, DC
Thomas C, Mackey MM, Diaz AA, Cox DP (2009) Hydroxyl radical is produced via the Fenton reaction in submitochondrial particles under oxidative stress: implications for diseases associated with iron accumulation. Redox Rep 14:102–108
Thornalley PJ, McLellan AC, Lo TW, Benn J, Sönksen PH (1996) Negative association between erythrocyte reduced glutathione concentration and diabetic complications. Clin Sci (Lond) 91:575–582
Vlassara H, Palace M (2002) Diabetes and advanced glycation end products. J Intern Med 251:87–101
Watanabe K, Thandavarayan RA, Harima M, Sari FR, Gurusamy N, Veeraveedu PT, Mito S, Arozal W, Sukumaran V, Laksmanan AP, Soetikno V, Kodama M, Aizawa Y (2010) Role of differential signaling pathways and oxidative stress in diabetic cardiomyopathy. Curr Cardiol Rev 6:280–290
Weber KT, Janicki JS, Shroff SG, Pick R, Chen RM, Bashey RI (1988) Collagen remodeling of the pressure-overloaded, hypertrophied nonhuman primate myocardium. Circ Res 62:757–765
Whittaker P, Hines FA, Robl MG, Dunkel VC (1996) Histopathological evaluation of liver, pancreas, spleen, and heart from iron-overloaded Sprague-Dawley rats. Toxicol Pathol 24:558–563
World Health Organization (2002) Reducing risks, promoting healthy life. The World Health Report. World Health Organization, Geneva, p 2002
Acknowledgments
This work received financial support from Fundação de Amparo à Pesquisa do Estado de Minas Gerais, Universidade Federal de Ouro Preto and research fellowships from Conselho Nacional de Desenvolvimento Científico e Tecnológico (Pedrosa, M. L., Silva, M. E.) and Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (Sampaio, A. F. S., Silva, M., Dornas, W.C.).
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Sampaio, A.F.S., Silva, M., Dornas, W.C. et al. Iron toxicity mediated by oxidative stress enhances tissue damage in an animal model of diabetes. Biometals 27, 349–361 (2014). https://doi.org/10.1007/s10534-014-9717-8
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DOI: https://doi.org/10.1007/s10534-014-9717-8