Cell Phone Use and Parotid Salivary Gland Alterations: No Molecular Evidence

The association between cell phone use and the development of parotid tumors is controversial. Because there is unequivocal evidence that the microenvironment is important for tumor formation, we investigated in the parotid glands whether cell phone use alters the expression of gene products related...

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Published in:Cancer epidemiology, biomarkers & prevention biomarkers & prevention, 2014-07, Vol.23 (7), p.1428-1431
Main Authors: DE SOUZA, Fabrício T. A, CORREIA-SILVA, Jeane F, FERREIRA, Efigênia F, SIQUEIRA, Elisa C, DUARTE, Alessandra P, GOMEZ, Marcus Vinícius, GOMEZ, Ricardo S, GOMES, Carolina C
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Language:English
Subjects:
Adult
Biological and medical sciences
Cell Phone
Female
Humans
Male
Medical sciences
Parotid Gland
Saliva
Tumors
Young Adult
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cited_by cdi_FETCH-LOGICAL-c339t-49e08e24b371e3fbc257aaf3633ab6488cd069236cbc8d4c581c5e7d501bb0993
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container_end_page 1431
container_issue 7
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container_title Cancer epidemiology, biomarkers & prevention
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creator DE SOUZA, Fabrício T. A
CORREIA-SILVA, Jeane F
FERREIRA, Efigênia F
SIQUEIRA, Elisa C
DUARTE, Alessandra P
GOMEZ, Marcus Vinícius
GOMEZ, Ricardo S
GOMES, Carolina C
description The association between cell phone use and the development of parotid tumors is controversial. Because there is unequivocal evidence that the microenvironment is important for tumor formation, we investigated in the parotid glands whether cell phone use alters the expression of gene products related to cellular stress. We used the saliva produced by the parotid glands of 62 individuals to assess molecular alterations compatible with cellular stress, comparing the saliva from the gland exposed to cell phone radiation (ipsilateral) to the saliva from the opposite, unexposed parotid gland (contralateral) of each individual. We compared salivary flow, total protein concentration, p53, p21, reactive oxygen species (ROS), and salivary levels of glutathione (GSH), heat shock proteins 27 and 70, and IgA between the ipsilateral and contralateral parotids. No difference was found for any of these parameters, even when grouping individuals by period of cell phone use in years or by monthly average calls in minutes. We provide molecular evidence that the exposure of parotid glands to cell phone use does not alter parotid salivary flow, protein concentration, or levels of proteins of genes that are directly or indirectly affected by heat-induced cellular stress.
doi_str_mv 10.1158/1055-9965.EPI-13-1357
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subjects Adult
Biological and medical sciences
Cell Phone
Female
Humans
Male
Medical sciences
Parotid Gland
Saliva
Tumors
Young Adult
title Cell Phone Use and Parotid Salivary Gland Alterations: No Molecular Evidence
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