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EMBO reports 7, 7, 688–693 (2006)
doi:10.1038/sj.embor.7400731
Figure 1
The gut flora as a forgotten organ
Ann M O'Hara & Fergus Shanahan
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| Functions of the intestinal flora. (A) Bacteria density increases in the jejunum/ileum from the stomach and duodenum, and in the large intestine, colon-residing bacteria achieve the highest cell densities recorded for any ecosystem. The most common anaerobic and aerobic genera are listed. (B) Commensal bacteria exert a miscellany of protective, structural and metabolic effects on the intestinal mucosa.
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