Alterations in TSH and Thyroid Hormones following Mobile Phone Use

Mortavazi, Seyed; Habib, Asadollah; Ganj-Karami, Amir; Samimi-Doost, Razieh; Pourabedi, A; Babaie, Ali

doi:10.5001/omj.2009.56

Cited by 57 publications

(59 citation statements)

References 26 publications

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“…Our results are highly similar to those obtained in the study investigating the effect of RF-EMF on thyroid hormone levels in adult rats [15] and humans [16,19]. However, our findings contradict the earlier…”

Section: Discussionsupporting

confidence: 85%

Plasma thyroid hormones and corticosterone levels in blood of chicken embryos and post hatch chickens exposed during incubation to 1800 MHz electromagnetic field

Pawlak¹,

Sechman²,

Nieckarz³

2014

International Journal of Occupational Medicine and Environmental Health

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Introduction: This study attempted to determine the effect of a 1800 MHz electromagnetic field (EMF) (only carrier frequency) on thyroxine (T 4 ), triiodothyronine (T 3 ) and corticosterone (CORT) concentrations in the blood plasma of chick embryos, and to investigate the effect of electromagnetic field (EMF) exposure during embryogenesis on the level of these hormones in birds that are ready for slaughter. Material and Methods: Throughout the incubation period, embryos from the experimental group were exposed to a 1800 MHz EMF with power density of 0.1 W/m 2 , 10 times during 24 h for 4 min. Blood samples were collected to determine T 4 , T 3 and CORT concentrations on the 12th (E12) and 18th (E18) day of incubation, from newly hatched chicks (D1) and from birds ready for slaughter (D42). Results: The experiment showed that T 4 and T 3 concentrations decreased markedly and CORT levels increased in the embryos and in the newly hatched chicks exposed to EMF during embryogenesis. However, no changes were found in the level of the analyzed hormones in the birds ready for slaughter. Differences in T 4 and T 3 plasma concentrations between the EMF-exposed group and the embryos incubated without additional EMF were the highest in the newly hatched chicks, which may be indicative of the cumulative effect of electromagnetic field on the hypothalamo-pituitary-thyroid axis (HPT). Discussion: The obtained results suggest that additional 1800 MHz radio frequency electromagnetic field inhibits function of HPT axis, however, it stimulates hypothalamo-pituitary-adrenal axis by inducing adrenal steroidogenic cells to synthesize corticosterone. Further investigations are needed to elucidate the mechanisms by which radio EMFs affect HPT and HPA axis function in the chicken embryos. Key words: Electromagnetic fields, Mobile phone, Thyroid hormone, Corticosterone, Chicken embryoThis study was performed under the project NN311536340 Chicken embryo as a model in the studies on the influence of radio frequency electromagnetic fields on the embryogenesis process and DS 3210/KHDZFiZ. Manager of project: Krzysztof Pawlak, PhD.

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Section: Discussionsupporting

confidence: 85%

Plasma thyroid hormones and corticosterone levels in blood of chicken embryos and post hatch chickens exposed during incubation to 1800 MHz electromagnetic field

Pawlak¹,

Sechman²,

Nieckarz³

2014

International Journal of Occupational Medicine and Environmental Health

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“…Certain research groups sought to find possible endocrine effects of 900 MHz radiation exposure (Bortkiewicz, 2001;Djeridane et al, 2008;Eskander et al, 2012;Koyu et al, 2005;Mortavazi et al, 2009). In fact, there is growing evidence that people and animals exposed to 900 MHz radiation present thyroid function and morphology alterations (Djeridane et al, 2008;Riccioni et al, 2004;Bergamaschi et al, 2004;Eskander et al, 2012;Hackney and Gulledge, 1994;Koyu et al, 2005;Shahryar et al, 2009).…”

Section: Introductionmentioning

confidence: 96%

Frequent cellular phone use modifies hypothalamic–pituitary–adrenal axis response to a cellular phone call after mental stress in healthy children and adolescents: A pilot study

Geronikolou

Chamakou

Mantzou

et al. 2015

Science of The Total Environment

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“…Exposure to radiation from the Chernobyl nuclear power plant accident in 1986 and radioactive fallout from nuclear weapons testing in the 1950s have long been linked to thyroid cancer, but they would not account for all the new cases. Cell-phone radiation has been implicated (4–6). …”

Section: Introductionmentioning

confidence: 99%

Cold Climate Is a Risk Factor for Thyroid Cancer

Lehrer¹,

Rosenzweig²

2014

Clinical Thyroidology

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Background The incidence rates of differentiated thyroid cancers of all sizes increased between 1988 and 2005 in both men and women. Exposure to ionizing radiation is the best-established environmental risk factor for thyroid cancer. Nonionizing radiation from cell phones has also been implicated. A positive correlation between all-cancer incidence rates and latitude and an inverse correlation between all-cancer incidence rates and temperature have been reported. In the present study, we examined the relationship between thyroid cancer incidence and average temperature in 50 U.S. states. Methods The age-adjusted incidence of thyroid cancer is from U.S. Cancer Statistics Working Group, United States Cancer Statistics: 1999–2010, Incidence and Mortality Web-based Report (Atlanta: Department of Health and Human Services, Centers for Disease Control and Prevention and National Cancer Institute; 2013, available at: www.cdc.gov/uscs). Average temperature by state is from the National Climatic Data Center, National Oceanic and Atmospheric Administration (http://www.ncdc.noaa.gov). Information on high-impact exposure to nuclear radiation by state is from the National Radiation Exposure Screening and Education Program, U.S. Health Resources and Services Administration (http://www.hrsa.gov/gethealthcare/conditions/radiationexposure). Cell-phone subscriber data for 2007 is from the Governing State and Local Sourcebook (http://sourcebook.governing.com). Mean elevation and latitude of U.S. states is from “Elevations and Distances in the United States,” Reston, VA: U.S. Geological Survey, April 29, 2005 (http://pubs.er.usgs.gov). Results There was a significant negative correlation between average temperature by state and the age-adjusted incidence of all thyroid cancers (r2 = −0.212, P = 0.001). Because of the possible effects of ionizing radiation exposure from nuclear testing and nonionizing radiation exposure from cell phones, multiple linear regression analysis was performed. The analysis was done only for all thyroid cancers and for thyroid cancers in whites. The data from blacks and Hispanics were too fragmentary to analyze. In all thyroid cancers and thyroid cancers in whites, there was a significant negative correlation between average temperature and incidence that was unrelated to nuclear testing, cell-phone use, altitude, and latitude and was independent of the significant correlation of cell-phone subscriptions per population with thyroid cancer in whites. Conclusions Living in a cold-climate state, such as Alaska, doubles the risk of thyroid cancer as compared with a warm state such as Texas. Because of climate change, a significantly raised risk of heat-related and cold-related mortality is expected in the years to come. The elderly will be most at risk. No doubt, incidence patterns of thyroid cancer and other cancers may be affected.

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Alterations in TSH and Thyroid Hormones following Mobile Phone Use

Cited by 57 publications

References 26 publications

Plasma thyroid hormones and corticosterone levels in blood of chicken embryos and post hatch chickens exposed during incubation to 1800 MHz electromagnetic field

Plasma thyroid hormones and corticosterone levels in blood of chicken embryos and post hatch chickens exposed during incubation to 1800 MHz electromagnetic field

Frequent cellular phone use modifies hypothalamic–pituitary–adrenal axis response to a cellular phone call after mental stress in healthy children and adolescents: A pilot study

Cold Climate Is a Risk Factor for Thyroid Cancer

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