Excerpt: …she was interested in the PNAS research because it identified a potential inhibitor of the hepatitis C virus… ”Definitely embarrassing:” Nobel Laureate retracts non-reproducible paper in Nature journal 1) This retraction marks the second in six months for Nature Chemistry after having none for eight years. 2) In 2009, Szostak also retracted a 2008 paper in Proceedings of the National Academy of Sciences after an outside researcher could not replicate the results. The retraction notice credited Katherine Berry, then…