It may or may not be the most significant retraction of a scientific paper ever, but it certainly is in the ballpark. The paper helped create and sustain the theory that amyloid protein buildups caused the symptoms of Alzheimer's Disease and was one of a number of apparently fraudulent papers written by Sylvain Lesné, a professor at the University of Minnesota, Twin Cities. All the paper's authors agreed to retract, save Lesné, who has been under investigation for manipulating data. "Authors of a landmark Alzheimer’s disease research paper published in Nature in 2006 have agreed to retract the study in...