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    McConnell et al. reveal a new activity for microvilli in the brush border lining the small intestine. Enzymes including intestinal alkaline phosphatase (green) are sorted into vesicles and released from the tips of microvilli (red) into the gut lumen, where they may help process nutrients and fight intestinal bacteria.
    See page 1285.

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ISSN 0021-9525
EISSN 1540-8140
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A surprising new function for intestinal cells in shaping their local environment.

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Using zebrafish, Giraldez studies how microRNAs guide the body's development.

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