For instance, Dannenberg says, Celebrex is being tested in human trials to prevent Barrett's Esophagus, a pre-malignant condition associated with some cases of serious acid reflux (otherwise known as heartburn) that reach up into the esophagus.

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That may allow pre-emptive treatment to be developed for people whose tumours are not yet malignant.

ECONOMIST: The next advances in genomics may happen in China