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Hsp70 is an independent stress marker among frequent users of mobile phones.

Author information

  • 1Department of Immunology, School of Biological Sciences, Madurai Kamaraj University, Madurai, Tamil Nadu, India.
  • 2Department of Biotechnology & Genetic Engineering, Bharathidasan University, Tiruchirappalli, Tamil Nadu, India.
  • 3Department of Pediatric Nephrology, Institute of Child Health & amp; Hospital for Children, Dr. M. G. R. Medical University, Chennai, Tamil Nadu, India.
  • 4Department of Environmental Biotechnology, Bharathidasan University, Tiruchirappalli, Tamil Nadu, India.

Abstract

The aim of this study was to measure the serum concentrations of heat shock protein (HSP) 70 and C-reactive protein (CRP) and the expression levels of the hsp70 gene among frequent users of mobile phones (FUMPs). We enrolled 120 employees of information technology (IT)/IT enabled service companies (FUMPs; IT professionals) and 102 infrequent users of mobile phones (IFUMPs; people from non-IT professions) as controls. The serum concentrations of HSP70 and CRP were measured by enzyme-linked immunosorbant assay and hsp70 gene expression by reverse transcription polymerase chain reaction. Significantly higher concentrations of serum HSP70 (P < 0.00012) and CRP (P < 0.04) were observed among FUMPs than IFUMPs. A higher level of hsp70 gene expression (fold induction) was observed among FUMPs than IFUMPs (P < 7.06 × 10-13). In contrast to the duration of exposure-dependent increase of serum concentration of CRP, the serum HSP70 concentration was found to be independent of the duration of exposure to mobile phones. Thus, the study convincingly demonstrated the role of serum HSP and CRP as systemic inflammatory biomarkers for mobile phone-induced radiation.

PMID:
25404380
[PubMed - indexed for MEDLINE]
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