Something rotten never smelled so sweet. This is what members of a team of scientists at Cold Spring Harbor Laboratory (CSHL) are telling one another as they discuss a new finding they did not expect to make. They have discovered that hydrogen sulfide (H2S) -- the flammable, highly toxic gas that we usually associate with the smell of rotten eggs in landfills and sewers -- plays an important role in the regulation of a signaling pathway implicated in biological malfunctions linked to Alzheimer’s and Parkinson’s diseases, among others.
