9/25/2013

Research has identified 160 genetic regions that may be linked to bowel diseases, finding many also play roles in regulation of immune function and how the gut interacts with bacteria. Now researchers also are studying whether air pollutants could affect bowel function. Gastroenterological scientist Karen Madsen said the GI tract regularly is bathed in fine pollution particles that could disrupt the barrier between the immune system and GI flora.

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