#AD­DIC­TION

Focus-Science and Technology - - DISCOVERIES -

AN­CIENT ILL­NESSES STILL CAUS­ING PROB­LEMS

Our genome is lit­tered with rem­nants of an­cient retro­virus in­fec­tions that af­flicted our an­ces­tors. Now, re­searchers at the Univer­sity of Ox­ford have found that one such virus, HK2, is fre­quently found in those with drug ad­dic­tions and other sub­stance abuse prob­lems. HK2 lies close to a gene in­volved in the reg­u­la­tion of dopamine and re­ward pro­cess­ing.

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