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Abstract Title:

[Chronotoxicity of 1.8 GHz radio-frequency radiation on plasma stress hormones and immune factors in mice].

Abstract Source:

Wei Sheng Yan Jiu. 2019 May ;48(3):482-487. PMID: 31133139

Abstract Author(s):

Fenju Qin, Tao Shen, Jinlin Li, Bin Xu, Yujia Chen, Zhu Anzhen Zheng, Dan Zou

Article Affiliation:

Fenju Qin

Abstract:

OBJECTIVE: To study the chronotoxicity of radio-frequency radiation(RF) on the plasma stress hormones and immune factors in mice.

METHODS: A total of 72 healthy C57 BL mice with circadian rhythm were divided into twelve groups: 6 Sham group and 6 RF groups. RF groups were exposed to 1.8 GHz RF at 226μW/cm~2 for 60 days with 2 h/day respectively at corresponding zeitgeber time(ZT 0:00, ZT 4:00, ZT 8:00, ZT 12:00, ZT 16:00, ZT 20:00). The Sham group mice were exposed to the same condition without electromagnetic signal. At the end of last RF exposure, blood samples were collected from each animal. The concentrations of plasma stress hormones(ACTH, CORT) and immune factors(GM-CSF, TNF-α) were determined by enzyme linked immunosorbent assay(ELISA) method.

RESULTS: The daily average levels of ACTH, CORT, GM-CSF and TNF-α were 84.12, 60.14, 1112.02 and 594.49 ng/L, which were decreased to 62.07, 41.21, 84.18 and 305.08 ng/L after 60 days of RF exposure. Compared to sham-exposed animals, the daily average levels of ACTH, CORT, GM-CSF and TNF-α were all significantly decreased(P<0.05). Circadian rhythms in the secreting of CORT, GM-CSF, TNF-α were disappeared(P>0.05), circadian rhythms of ACTH was shifted in RF-exposed mice, with the amplitude reduced from 12.45 to 4.88 and peak time postponed from 1:39 to 5:29.

CONCLUSION: 1.8 GHz RF may weaken the function of stress and immune, and disturb their circadian rhythmicities.

Study Type : Animal Study

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Sayer Ji
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