File:Ulcer-causing Bacterium (H.Pylori) Crossing Mucus Layer of Stomach.jpg

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English: A team of researchers from Boston University, Harvard Medical School and Massachusetts Institute of Technology have shown that the bacterium that causes human stomach ulcers uses a clever biochemical strategy to alter the physical properties of its environment, allowing it to move and survive and further colonize its host.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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Illustration Credit: Zina Deretsky, National Science Foundation

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Source NSF Flickr photostream, https://www.flickr.com/photos/nsf_beta/4822021538/in/set-72157621768317570
Author Illustration Credit: Zina Deretsky, National Science Foundation

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This image was originally posted to Flickr. It has been reviewed on 2023-04-02 08:04:58 by FlickreviewR 2. The image was however no longer available on Flickr, and its copyright status thus undeterminable.
Public domain This image is a work of a National Science Foundation employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain.

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Date/TimeThumbnailDimensionsUserComment
current23:33, 12 March 2017Thumbnail for version as of 23:33, 12 March 20171,888 × 1,184 (576 KB)Ras67 (talk | contribs)frame removed with Jpegcrop
01:13, 10 April 2013Thumbnail for version as of 01:13, 10 April 20131,907 × 1,200 (671 KB)Oaktree b (talk | contribs)User created page with UploadWizard

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