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Connection between cell phone use, p53 gene expression in different zones of glioblastoma multiforme and survival prognoses

Reza Akhavan-Sigari, Morteza Mazloum Farsi Baf, Vahid Ariabod, Veit Rohde, Saeed Rahighi
  • Morteza Mazloum Farsi Baf
    Department of Neurosurgery, Islamic Azad University, Medical Branch, Mashhad, Iran, Islamic Republic of
  • Vahid Ariabod
    Department of Pathology, Islamic Azad University, Medical Branch, Mashhad, Iran, Islamic Republic of
  • Veit Rohde
    Department of Neurosurgery, University Medical Center of Göttingen, Georg- August University of Göttingen, Germany
  • Saeed Rahighi
    Department of Neurosurgery, Islamic Azad University, Medical Branch, Mashhad, Iran, Islamic Republic of

Abstract

The aim of this paper is to investigate p53 gene expression in the central and peripheral zones of glioblastoma multiforme using a real-time reverse transcription polymerase chain reaction (RT-PCR) technique in patients who use cell phones ≥3 hours a day and determine its relationship to clinicopathological findings and overall survival. Sixty-three patients (38 males and 25 females), diagnosed with glioblastoma multiforme (GBM), underwent tumor resection between 2008 and 2011. Patient ages ranged from 25 to 88 years, with a mean age of 55. The levels of expression of p53 in the central and peripheral zone of the GBM were quantified by RT-PCR. Data on p53 gene expression from the central and peripheral zone, the related malignancy and the clinicopatholagical findings (age, gender, tumor location and size), as well as overall survival, were analyzed. Forty-one out of 63 patients (65%) with the highest level of cell phone use (≥3 hours/day) had higher mutant type p53 expression in the peripheral zone of the glioblastoma; the difference was statistically significant (P=0.034). Results from the present study on the use of mobile phones for ≥3 hours a day show a consistent pattern of increased risk for the mutant type of p53 gene expression in the peripheral zone of the glioblastoma, and that this increase was significantly correlated with shorter overall survival time. The risk was not higher for ipsilateral exposure. We found that the mutant type of p53 gene expression in the peripheral zone of the glioblastoma was increased in 65% of patients using cell phones ≥3 hours a day.

Keywords

glioblastoma multiforme, p53 gene expression, reverse transcriptase polymerase chain reaction

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Submitted: 2014-02-12 16:59:41
Published: 2014-08-08 13:02:06
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