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Lung cancer may be related to alterations in DNA different if you are smoker or nonsmoker. The discovery comes from a Canadian study of the BC Cancer Research Center in Vancouver. Oncologists have compared the genetic makeup of 30 patients and 53 patients with non-smokers smokers or former smokers. Among those who had never lit a cigarette and had been affected by cancer we observed a greater amount of epidermal growth factor receptor (EGFR), an event already known to literature scientifica, ma, cosa nuova, i non fumatori presentavano alterazioni del Dna più diffuse dei fumatori. Lo studio, presentato alla nona conferenza Frontiers in Cancer Prevention Research in corso a Filadelfia, suggerisce una nuova ipotesi: "Il cancro del polmone nei non fumatori dovrebbe essere studiato come un gruppo separato", spiega Kelsie Thu, poiché le due forme potrebbero rappresentare due malattie diverse.
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