Physics of Biology

    

Low-Dose CT Doesn’t Damage DNA

Authors: George Rajna

To investigate whether exposure to low-dose CT could increase the risk of radiation-induced cancers, a Japanese research team compared the number of DNA double-strand breaks and chromosome aberrations in peripheral blood lymphocytes following low-dose and standard-dose chest CT. [23] Biology encodes information in DNA and RNA, which are complex molecules finely tuned to their functions. [22] When cells suffer DNA damage, they send out an SOS signal. When the repair crew arrives, the emergency signal is cancelled as it is no longer needed. [21]

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[v1] 2020-03-13 03:42:13

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