Low-dose medical radiation induces Alzheimer’s-like changes in the brain

A third of all diagnostic CT examinations are of the head region.  They consist of low-dose radiation.  Repeated exposure to such radiation has radiation biologists concerned.  When mice were exposed to repeated low-dose radiation CT scans their brains were molecularly altered in a similar fashion to Alzheimer’s disease pathology.  The laboratory mice were exposed to 1000-fold lower dose of radiation than what a patient gets from a single CT scan.  [Science Daily Oct 27, 2016; Oncotarget Sept 30, 2016]

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