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Taken 4-May-10
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Original file size301 KB
Image typeJPEG
Color spaceUncalibrated
Date modified4-May-10 20:49
H. pylori Crossing Mucus Layer of Stomach

H. pylori Crossing Mucus Layer of Stomach

Contact with stomach acid keeps the mucin lining the epithelial cell layer in a spongy gel-like state. This consistency is impermeable to the bacterium Heliobacter pylori. However, the bacterium releases urease which neutralizes the stomach acid. This causes the mucin to liquefy, and the bacterium can swim right through it.

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“Thanks, Zina! I'm really a fan of finding clear ways to communicate science, and this illustration is a great example. Thank you for your excellent work.”

--Randy H. Ewoldt
Mechanical Engineering Department
Massachusetts Institute of Technology

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