On the Iberian peninsula, there seems to be a tradition to give well-connected scientists suspected (or even convinced) of data fudging an award. In Spain, Carlos López-Otín, Professor of Biochemistry and Molecular Biology at the University of Oviedo, was given a Mentoring Award from the elite journal Nature, on recommendation from Spanish academia and despite evidence of data irregularities in his papers. This prompted my readers, in particular the famous pseudonymous data integrity sleuth Clare Francis, to comment on on PubPeer and on my site (as “Zebedee”) with additional evidence, which made Lopez-Otin’s scientific credibility look progressively worse and worse, with each new post.
Eventually, an image of a Northern blot (showing expression of mRNAs which code for proteins) was found to appear recurrently across several papers from that Oviedo lab, where the authors pretended it was a newly produced analysis. In reality, it was a “library” loading control reused so the authors could re-run same RNA gel of human tissue lysates over the years and never check ever again what they have actually loaded on their gels. Eventually Lopez-Otin et al even stopped caring what order of samples that original loading control had.
Clare Francis was soon joined on his quest for the Perennial Northern Blot of Oviedo by Elisabeth Bik, famous microbiology blogger and image duplication detective, and my regular contributor (also pseudonymous) Smut Clyde, who now presents you the findings of no less than 23 appearances of that same northern blot in 23 publications from Lopez-Otin’s lab in the guest post below. It is just as convincing as if the Spanish actor Antonio Banderas appeared in 23 different films still dressed in same costume from his 1995 hit Desperado, carrying same guitar case. Incidentally, also Lopez-Otin’s Perennial Northern Blot made its first appearance at around that year.
Continue reading “The Perennial Northern Blot of Lopez-Otin”