What do rotten eggs and colon cancer have in common?

 "University of Texas Medical Branch at Galveston researchers have discovered that hydrogen sulfide -- the pungent-smelling gas produced by rotten eggs -- is a key player in colon cancer metabolism, and a potential target for therapies for the disease."In a paper appearing online this week in the Proceedings of the National Academy of Sciences, the UTMB scientists describe cell-culture and mouse experiments demonstrating that colon cancer cells produce large amounts of hydrogen sulfide, and depend on the compound for survival and growth.

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