Effects of power frequency electromagnetic field on apoptosis of T and B lymphocyte in workers of transformer substation
10.11763/j.issn.2095-2619.2018.06.011
- Author:
Lichun LI
1
;
Huifeng CHEN
1
;
Xuehua YAN
1
;
Zekun YU
;
Shanyu ZHOU
1
;
Li LI
Author Information
1. Guangdong Province Hospital for Occupational Disease Prevention and Treatment,Guangdong Provincial Key Laboratory of Occupational Disease Prevention and Treatment Guangzhou,Guangdong 510300,China
- Publication Type:Journal Article
- Keywords:
Power frequency electromagnetic field;
Substation;
Lymphocyte;
Apoptosis
- From:
China Occupational Medicine
2018;45(06):719-722
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE: To analyze the effects of long term exposure to power frequency electromagnetic fields( PFEMF) on apoptotic rates of peripheral blood T and B lymphocytes in workers of transformer substation. METHODS: A random number table method was used to select 73 workers with long-term exposure to PFEMF as exposure group and 70 non-exposure workers( administrative and logistics staffs) were selected as control group from 10 transformer substations in a province.The peripheral venous blood of workers in these two groups was collected,and the apoptosis of T and B lymphocytes were detected and analyzed by flow cytometry. RESULTS: The apoptosis rates of T and B lymphocyte between the exposure and non-exposure groups showed no statistical difference( median: 1. 555% vs 0. 790%,0. 020% vs 0. 030%,P > 0. 05).The multivariate linear regression analysis showed that both the PFEMF exposure and length of service had no significant effects on the apoptosis rates of T lymphocyte and B lymphocyte after adjusting confounding factors such as gender,age,alcohol drinking,smoking,medication history,medical radiation exposure and stressful events( P > 0. 05). CONCLUSION: Long-term exposure to PFEMF has no effects on apoptosis of peripheral blood T and B lymphocytes in workers of transformer substation.
