Hydrogen sulphide, the gas famed for generating the stench in stink bombs, flatulence, and bad breath, has been harnessed by stem cell researchers in Japan.
Their study, in the Journal of Breath Research, investigated using it to help convert stem cells from human teeth into liver cells.
The scientists claimed the gas increased the purity of the stem cells. Small amounts of hydrogen sulphide are made by the body. It is also produced by bacteria and is toxic in large quantities.
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