Archive for the ‘unreliable findings’ Category
Nearly six months after first expressing concern about the validity of a 2010 paper on multiple sclerosis, Nature Medicine has retracted the article for containing “erroneous” data — which in this case don’t seem to have existed, making them more fabricated than wrong.
The paper, “Crucial role of interleukin-7 in T helper type 17 survival and expansion in autoimmune disease,” came from a group led by Jingwu Zhang, who at the time ran GlaxoSmithKline’s Research and Development Center in Shanghai.
The paper — by Gilles Seralini and colleagues — was published in Food and Chemical Toxicology last year. There have been calls for retraction since then, along with other criticism and a lengthy exchange of letters in the journal. Meanwhile, the paper has been cited 28 times, according to Thomson Scientific’s Web of Knowledge, and the French National Assembly (their lower house of Parliament) held a long hearing on the paper last year, with Seralini and other scientists testifying.
The journal Applied Surface Science (okay, so maybe it’s not called ASS at the home office) is retracting a pair of articles in its December issue.
The first, “Structure and mechanical properties of Ni–P electrodeposited coatings,” appeared in 2009 and was written by a group of researchers in Beijing. It has been cited nine times, according to Thomson Scientific’s Web of Knowledge. Its problem: Plagiarism. According to the retraction notice: Read the rest of this entry »
In July, we reported on the unfortunate math of Harish Hosalkar, a San Diego orthopedic surgeon who was at the center of an institutional investigation into the integrity of his data, two lawsuits and three retractions.
At the time, we were waiting on the third retraction, in the journal Orthopedic Reviews. It has now arrived.
The article was titled “Open reduction and internal fixation of displaced clavicle fractures in adolescents,” and Hosalkar wrote it with Gaurav Parikh, James D. Bomar and Bernd Bittersohl. Read the rest of this entry »
The Journal of the American Chemical Society has retracted a 2009 paper on ethylene polymerization after the authors said they were unable to replicate their findings.
The article, “Bimetallic Effects for Enhanced Polar Comonomer Enchainment Selectivity in Catalytic Ethylene Polymerization,”came from the lab of Tobin Marks, a highly decorated — and grant-and-royalty-generating — chemist at Northwestern University.
Read the rest of this entry »
Last week, we reported that some of the authors of a 2010 paper in the BMJ claiming to have identified Henry IV’s head thought the study should be retracted based on new evidence. Some of the other authors have now responded to that call for retraction, which appeared on the BMJ’s site alongside the paper.
Philippe Charlier, the corresponding author of the original paper, and five of the original paper’s 15 co-authors conclude after reviewing the evidence that
With apologies to Dana Carvey, Bioorganic & Medicinal Chemistry Letters has chopped a 2012 paper on the molecular constituents of broccoli florets after readers evidently were forced to do the job of reviewers and point out fatal flaws in the study.
The article, “Two novel bioactive glucosinolates from Broccoli (Brassica oleracea L. var. italica) florets,” came from a group in South Korea and has yet to be cited, according to Thomson Scientific’s Web of Knowledge. But according to the retraction notice, after publication critics pointed out serious problems with the work. To wit: Read the rest of this entry »
A team of researchers led by Daniel St. Johnston, director of the Gurdon Institute at Cambridge and a prominent developmental biologist in the UK, has lost a pair of articles after finding that their data were unreliable. But rather than “correct” the record with subsequent papers, they’ve withdrawn the problematic work.
To our mind, this is a poster case of doing the right thing by science. We think the notices — as provided by the authors and reported by the journals — pretty much say it all, so we’ll let them speak for themselves, followed by some details St. Johnston shared with us.
The first article, “LKB1 and AMPK maintain epithelial cell polarity under energetic stress,” appeared in 2007 in the Journal of Cell Biology and has been cited 108 times, according to Thomson Scientific’s Web of Knowledge.
According to the retraction notice: