Does GSM-like 1800 MHz radiofrequency cause KRASand p53 mutations in colon? : Histopatologically andmicrobiologically changes in colon

Does GSM-like 1800 MHz radiofrequency cause KRASand p53 mutations in colon? : Histopatologically andmicrobiologically changes in colon

Aim: The aim of this study was to determine effects of 1800 MHz magnetic field on amout of colonic Bactroides and Fusobacteriumand colon pathology in rats and determination of KRAS and p53 gene mutation in colon.Materials and Methods: In the present study, three groups were prepared as control, sham and RFR. The RFR group rats were exposed to 1800 MHz GSM-like RFR for 12 weeks as 45 minutes per day. An electromagnetic energy generator was used to generate 1800 MHz RF radiation in the RFR group. At the end of experiments, colons were dissected from rats for histopathological examination and determination of KRAS and p53 mutations. Fecal speciments were collected for bacterial detection. DNA was isolated from fecal bacterias and colon.Results: No differences were observed between sham and control groups, histopathologically. Corrupted gland structure, mucosal edema and inflammatory cell infiltration were observed at mucosal epithelum in the RFR group. An increase in the amount of collagen and fibrosis were detected in the electromagnetic field group. Number of goblet cells showed a statistically significant decrease in electromagnetic field group compared to both the control and sham groups (P

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  • 1. Kostoff RN, Lau CGY, Combined biological and health effects of electromagnetic fields and other agents in the published literature. Technol Forecast Soc Change 2013;80:1331-49.
  • 2. Kovacic P, Somanathan R, Electromagnetic fields: mechanism, cell signaling, other bioprocesses, toxicity, radicals, antioxidants and beneficial effects. J Recept Signal Transduct Res 2010;30:214-26.
  • 3. Kostic AD, Gevers D, Pedamallu CS, et al. Genomic analysis identifies association of Fusobacterium with colorectal carcinoma. Genome Res 2012;22:292-8.
  • 4. Mccoy NA, Araujo-Perez F, Azcara AP, et al. Fusobacterium Is Associated with Colorectal Adenomas. Plos One 2013;8:1.
  • 5. Wu N, Yang X, Zhang R, et al. Dysbiosis Signature of Fecal Microbiota in Colorectal Cancer Patients. Microb Ecol 2013;66:462-70.
  • 6. Goodwin AC, Shields CED, Wu S, et al. Polyamine catabolism contributes to enterotoxigenic Bacteroides fragilis-induced colon tumorigenesis. PNAS 2011;108:15354-9.
  • 7. Vargo D, Moskovitz M, Floch MH. Faecal bacterial flora in cancer of the colon. Gut 1980;21:701-5.
  • 8. Macedo MP, Lima LGCA, Begnami MDFS, et al. KRAS insertions in colorectal cancer:What do we know about unusual KRAS mutations?. Exp Mol Pathol 2014;96:257-60.
  • 9. Tsiatis AC, Norris-Kirby A, Rich RG, et al. Comparison of Sanger Sequencing, Pyrosequencing, and Melting Curve Analysis for the Detection of KRAS Mutations:Diagnostic and clinical implications. J Molecular Diagnostics 2010;12:425-32.
  • 10. Rodrigues NR, Rowan A, Smith ME, et al. p53 mutations in colorectal cancer. PNAS 1990;87:7555-9.
  • 11. Balamurugan R, Janardhan HP, George S, et al. Molecular studies of fecal anaerobic commensal bacteria in acute diarrhea in children. J Pediatr Gastroenterol Nutr 2008;46:514-9
  • 12. Kokturk S, Ceylan S, Etus V, Yasa N & Ceylan S, Morinda citrifolia L. (noni) and memantine attenuate periventricular tissue injury of the fourth ventricle in hydrocephalic rabbits 2013;8:773-82.
  • 13. Lesack K, Naugler C, Performance of a simple chromatin-rich segmentation algorithm in quantifying basal cell carcinoma from histology images. BMC Research Notes 2012;5:1-9
  • 14. Dasdag S, Akdag MZ, Ulukaya E, et al. Mobile phone exposure does not induce apoptosis on spermatogenesis in rats. Arch Med Res 2008;39:40-4.
  • 15. Andreyev HJ, Norman AR, Cunningham D, et al. Kirsten ras mutations in patients with colorektal cancer: the “RASCAL II” study. Br J Cancer 2001;85:692-6.
  • 16. Santini D, Loupakis F, Vincenzi B, et al. High concordance of KRAS status between primary colorectal tumors and related metastatic sites; implications for clinical practice. Oncologist 2008;13:1270-6.
  • 17. Noda H, Maehara Y, Irie K, et al. Growth pattern and expression of cell cycle regulator proteins p53 and p21WAF1/Cıp1 in early gastric carcinoma. Cancer 2001;92:1828-35.
  • 18. Dobrucalı A. Classification and etiopathogenesis in colorectal cancer. Colon, rectum and anorectal region diseases. Design Press, Istanbul; 2003:395.
  • 19. Coussens LM, Werb Z. Inflammation and cancer. Nature 2002;420:860-7.
  • 20. Aggarwal BB, Shishodia S, Sandur SK, et al. Inflammation and cancer: how hot is the link. Biochem Pharmacol 2006;72:1605-21.
  • 21. Moore WEC, Moore LH. Intestinal floras of populations that have a high risk of colon cancer. Appl Environ Microbiol 1995;61:3202-7.
  • 22. Ojetti V, Gigante G, Ainora ME, et al. Microflora imbalance and gastrointestinal diseases. Dig Liver Dis 2009;3:35-9.
  • 23. Chan PH. Reactive oxygen radicals in signaling and damage in the ischemic brain. J Cereb Blood Flow Metab 2001;21:2-14.
  • 24. Harakawa S, Inoue N, Hori T. Effects of a 50Hz electric field on plasma lipid peroxide level and antioxidant activity in rats. Bioelectromagnetics 2005;26:589-94.
  • 25. Meral I, Mert H, Mert N, et al. Effects of 900-MHz electromagnetic field emitted from cellular phone on brain oxidative stress and some vitamin levels of guinea pig. Brain Research 2007;1169:120-4.
  • 26. Celikozlu SD, Ozyurt MS, Cımbız A, et al., The effects of long-term exposure of magnetic field via 900- MHz GSM radiation on some biochemical parameter and brain histology in rats. Electromagn Biol Med 2012;31:344-55.
  • 27. Dogan M, Turtay MG, Oguzturk H, et al. Effects of electromagnetic radiation produced by 3G mobile phones on rat brains: Magnetic resonance spectroscopy, biochemical, and histopathological evaluation. Hum Exp Toxicol 2012;31:557.
  • 28. Aydogan F, Unlu I, Aydin E, et al. The effect of 2100 MHz radiofrequency radiation of a 3G mobile phone on the parotid gland of rats. Am J Otolaryngol 2015;36:39- 46.
  • 29. Koca O, Gokce AM, Akyuz M, et al. A new problem in inflammatory bladder diseases: Use of mobile phones!. Int Braz J Urol 2014;40:520-5.
Annals of Medical Research-Cover
  • Yayın Aralığı: 12
  • Yayıncı: İnönü Üniversitesi Tıp Fakültesi
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Does GSM-like 1800 MHz radiofrequency cause KRASand p53 mutations in colon? : Histopatologically andmicrobiologically changes in colon

Hayri DAYIOĞLU, Sinan DARCAN, Sibel KÖKTÜRK, Ezgi Ece SAĞ, Saadet ÇELİKÖZLÜ, Cengiz ÖZZAİM