Effects of 50 Hz electric field on malondyaldehide and nitric oxide levels in spinal cord of rats at prenatal plus postnatal period

The effect of 50 Hz electric field (EF) on developing neural tissues is not known. We aimed to determine whether there would be any oxidative stress effect of 50 Hz EF on developing spinal cord tissues of pup rats by evaluating malondialdehyde (MDA), nitric oxide (NO) levels, and antioxidant enzyme activities such as superoxide dismutase (SOD) and catalase (CAT) measurement. Materials and methods: In the prenatal+postnatal group, the pregnant rat was exposed to continuous EF at 50 Hz 10 kV/s until delivery. Then the female pups of this group (n = 7) were exposed to EF at the same doses and for the same duration until puberty. In the postnatal group, the pregnant rat was unexposed to EF during pregnancy, but the female pups from this group (n = 7) began to be exposed to EF at delivery, and continued to be exposed to EF at 50 Hz EF 10 kV/m for 24 h until puberty. Results: In the prenatal+postnatal group, the MDA and NO levels in the spinal cord tissue of pup rats were significantly higher when compared to the control group. However, in the postnatal group, the MDA and NO levels in the spinal cord tissue of pup rats were not significantly different when compared to the control group. Conclusion: A 50 Hz electric field may cause oxidative stress in the spinal cord of rats in the prenatal+postnatal period.

Effects of 50 Hz electric field on malondyaldehide and nitric oxide levels in spinal cord of rats at prenatal plus postnatal period

The effect of 50 Hz electric field (EF) on developing neural tissues is not known. We aimed to determine whether there would be any oxidative stress effect of 50 Hz EF on developing spinal cord tissues of pup rats by evaluating malondialdehyde (MDA), nitric oxide (NO) levels, and antioxidant enzyme activities such as superoxide dismutase (SOD) and catalase (CAT) measurement. Materials and methods: In the prenatal+postnatal group, the pregnant rat was exposed to continuous EF at 50 Hz 10 kV/s until delivery. Then the female pups of this group (n = 7) were exposed to EF at the same doses and for the same duration until puberty. In the postnatal group, the pregnant rat was unexposed to EF during pregnancy, but the female pups from this group (n = 7) began to be exposed to EF at delivery, and continued to be exposed to EF at 50 Hz EF 10 kV/m for 24 h until puberty. Results: In the prenatal+postnatal group, the MDA and NO levels in the spinal cord tissue of pup rats were significantly higher when compared to the control group. However, in the postnatal group, the MDA and NO levels in the spinal cord tissue of pup rats were not significantly different when compared to the control group. Conclusion: A 50 Hz electric field may cause oxidative stress in the spinal cord of rats in the prenatal+postnatal period.

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  • Aydın MA, Comlekci S, Ozguner M, Cesur G, Nasir S, Aydin ZD. The influence of continuous exposure to 50 hz electric field on nerve regeneration in a rat peroneal nerve crush injury model. Bioelectromagn 2006; 27: 401-413.
  • Köylü H, Mollaoglu H, Ozguner F, Naziroglu M, Delibas N. Melatonin modulates 900 Mhz microwave-induced lipid peroxidation changes in rat brain. Toxicol Ind Health 2006; 22: 211-216.
  • Yıldırım A, Kotan D, Yıldırım S, Aygül R, Akçay F. Increased lipid peroxidation and decreased antioxidant response in serum and cerebrospinal fluid in acute ischemic stroke. Turk J Med Sci 2007; 37: 75-81.
  • Koops FB. New ICNIRP guidelines for human exposure to 50 Hz E- and M-fields. Health Phys 1998; 75: 437-438.
  • Comlekci S. Induced dielectric-force-effect by 50 Hz strong electric field on living tissue. Biomed Mater Eng 2006; 16: 363- 367.
  • Lowry OH, Rosebrough NJ, Farr AL, Randal RJ. Protein measurement with the folin phenol reagent. J Biol Chem 1951; 193; 265-275.
  • Draper HH, Hadley M. Malondialdehyde determination as index of lipid peroxidation. Methods Enzymol 1990; 186: 421- 443.
  • Sun Y, Oberley LW, Li Y. A simple method for clinical assay of superoxide dismutase. Clin Chem 1988; 34: 497-500.
  • Aebi H. Catalase in vitro. Methods Enzymol 1984; 105: 121-126.
  • Cortas NK, Wakid NW. Determination of inorganic nitrate in serum and urine by akinetic cadmium-reduction method. Clin Chem 1990; 36: 1440-1443.
  • Ilhan A, Gurel A, Armutcu F, Kamilsi S, Iraz M, Akyol O et al. Ginkgo biloba prevents mobile phone-induced oxidative stress in rat brain. Clinica Chimica Acta 2004; 340: 153-162.
  • Guler G, Turkozer Z, Tomruk A, Seyhan N. The protective effects of N-acetyl-L-cysteine and epigallocatechin-3-gallate on electric field-induced hepatic oxidative stress. Int J Radiat Biol. 2008; 84: 669-680.
  • Yilmaz HR, Uz E, Yucel N, Altuntas I, Ozcelik N. Protective effect of caffeic acid phenethyl ester (CAPE) on lipid peroxidation and antioxidant enzymes in diabetic rat liver. J Biochem Mol Toxicol 2004; 18: 234-238.
  • Wartenberg M, Wirtz N, Grob A, Niedermeier W, Hescheler J, Peters SC et al. Direct current electrical fields induce apoptosis in oral mucosa cancer cells by NADPH oxidase-derived reactive oxygen species. Bioelectromagn 2008; 29: 47-54.
  • Challis LJ. Mechanisms for interaction between RF fields and biological tissue. Bioelectromagn 2005; 7: 98-106.
  • Bas O, Odaci E, Mollaoglu H, Ucok K, Kaplan S. Chronic prenatal exposure to the 900 megahertz electromagnetic field induces pyramidal cell loss in the hippocampus of newborn rats. Toxicol Ind Health 2009; 25: 377-384.
  • Czapski GA, Cakala M, Chalimoniuk M, Gajkowska B, Strosznajder JB. Role of nitric oxide in the brain during lipopolysaccharide-evoked systemic inflammation. J Neurosci Res 2007; 85: 1694-1703.
  • Çetin K, Erol S, Aksoy H, Taşyaran MA. The relation of cerebrospinal fluid nitric oxide levels to prognosis and differential diagnosis of meningitis. Turk J Med Sci 2002; 32: 385-390.
  • Köylü H, Mollaoglu H, Ozguner F, Naziroglu M, Delibas N. Melatonin modulates 900 Mhz microwave-induced lipid peroxidation changes in rat brain. Toxicol Ind Health 2006; 22: 211-216.
  • Güler G, Türközer Z, Ozgur E, Seyhan N. Antioxidants alleviate electric field-induced effects on lung tissue based on assays of heme oxygenase-1, protein carbonyl content, malondialdehyde, nitric oxide, and hydroxyproline. Sci Total Environ 2009; 407: 1326-1332.
  • Mollaoglu H, Topal T, Ozler M, Uysal B, Reiter RJ, Korkmaz A et al. Antioxidant effects of melatonin in rats during chronic exposure to hyperbaric oxygen. J Pineal Res 2007; 42: 50-54.
Turkish Journal of Medical Sciences-Cover
  • ISSN: 1300-0144
  • Yayın Aralığı: Yılda 6 Sayı
  • Yayıncı: TÜBİTAK
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