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. 2022 Nov;66(11):2147-2158.
doi: 10.1007/s00484-022-02351-w. Epub 2022 Sep 30.

Effect of heat stress on DNA damage: a systematic literature review

Peymaneh Habibi  1 , Seyed Naser Ostad  2 , Ahad Heydari  3 , Shima Aliebrahimi  4 , Vahideh Montazeri  4 , Abbas Rahimi Foroushani  5 , Mohammad Reza Monazzam  1 , Mahmoud Ghazi-Khansari  6 , Farideh Golbabaei  7
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Effect of heat stress on DNA damage: a systematic literature review

Peymaneh Habibi et al. Int J Biometeorol. 2022 Nov.

Abstract

Thermal stress has a direct effect on various types of DNA damage, which depends on the stage of the cell cycle when the cell is exposed to different climate conditions. A literature review was conducted to systematically investigate and assess the overall effect of heat stress and DNA damage following heat exposure. In this study, electronic databases including PubMed, Scopus, and Web of Science were searched to find relevant literature on DNA damage in different ambient temperatures. Outcomes included (1) measurement of DNA damage in heat exposure, (2) three different quantification methods (comet assay, 8-hydroxy-2-deoxyguanosine (8-OHdG), and γ-H2AX), and (3) protocols used for moderate (31) and high temperatures (42). The evidence shows that long exposure and very high temperature can induce an increase in DNA damage through aggregate in natural proteins, ROS generation, cell death, and reproductive damage in hot-humid and hot-dry climate conditions. A substantial increase in DNA damage occurs following acute heat stress exposure, especially in tropical and subtropical climate conditions. The results of this systematic literature review showed a positive association between thermal stress exposure and inhibition of repair of DNA damage.

Keywords: DNA damage; DNA replication; Heat shock; Heat strain; Heat stress.

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