The workings of the small intestine have long been a mystery, but now we are discovering the hidden roles this organ plays in appetite, metabolism and the microbiome – and how to look after it better ...

Small intestine articles from across Nature Portfolio Atom RSS Feed The small intestine is located between the stomach and the large intestine and is composed of the duodenum, jejunum and ileum.

Figure 1. Rearranged digestive tract after Roux-en-Y gastric bypass. Ingested food and drugs pass through the gastrojejunal anastomosis into the jejunum, effectively bypassing the absorptive ...

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The COX-1 staining was very similar in normal gastric, and small and large intestinal tissues. Cyclo-oxygenase-1 staining was occasionally observed in mucosal epithelial cells, stromal fibroblasts ...