Barrett's oesophagus in Asians--are ethnic differences due to genes or the environment?

Abstract excerpt

Ethnic differences in the prevalence of gastro-oesophageal reflux disease (GORD) and its complications, including Barrett's oesophagus (BO), are well described in multiracial Asian patient populations. These findings together with familial aggregation of GORD symptoms and twin studies suggest the possibility of a genetic component to GORD. Nevertheless, environmental factors, e.g. Helicobacter pylori infection,...

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