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05 March 2020

Mobile phones cause DNA damage in the placenta and umbilical cord

In a new study, researchers show that mobile phone use during pregnancy increases the incidence of oxidative stress and DNA damage in umbilical cord blood and placenta from women who have just given birth. The researchers also report that the negative effects are amplified by simultaneous exposure to WiFi. Researcher and cancer physician Lennart Hardell estimates that the results indicate that mobile use during pregnancy can increase the risk of birth defects and diseases. (Ref: "Mobiler orsakar DNA-skador i moderkaka och navelsträng" - "Mobile phones cause DNA damage in the placenta and umbilical cord"):

Comparison of effects of 2.4 GHz Wi-Fi and mobile phone exposure on human placenta and cord blood
Hava Bektas,Suleyman Dasdag &Mehmet Selcuk Bektas
Pages 154-162 | Received 28 Sep 2019, Accepted 31 Jan 2020, Published online: 11 Feb 2020


The aim of this study was to investigate the effects of radiofrequency radiation emitted from Wi-Fi systems and mobile phones on cord blood and placenta. The study included 149 pregnant women who were divided in subgroups: unexposed (control), mobile phone exposed, Wi-Fi exposed and mobile phone plus Wi-Fi exposed groups. Immediately after birth, placenta and cord blood samples were collected and protein carbonyl (PCO), malondialdehyde (MDA), total oxidant status (TOS), total antioxidant status, 8-hydroxy-2′-deoxyguanosine (8-OHdG) levels and DNA single strand breaks were analysed. The results of the study showed an increase in 8-OHdG, MDA, PCO and TOS in cord blood and placenta in the group exposed to mobile phones during gestation. However, the group exposed to Wi-Fi did not show alterations in the studied oxidative stress parameters. On the other hand, tail intensity and tail moment of DNA in the mobile phone exposure groups were higher than those in the control and Wi-Fi exposure groups. In conclusion, the results of this study indicated that mobile phone exposure during pregnancy could have an important potential to cause oxidative stress and DNA damage in cord blood and placenta. The results of this study also indicated that combined effects of Wi-Fi plus mobile phone exposure have a higher potential to cause synergistic harmful effects.

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