After typing up 96 citations, researchers from the National Institute for Digestive Diseases, I.R.C.C.S. “S. de Bellis,” in Bari, Italy, apparently ran out of steam for the last five, earning themselves a retraction for plagiarism in a literature review of the effects of probiotics on intestinal cancer.
Here’s the notice for “Intestinal Microbiota, Probiotics and Human Gastrointestinal Cancers,” from the Journal of Gastrointestinal Cancer: Continue reading Yogurt to be kidding me: Five articles plagiarized in one retracted paper
The Journal of Evidence-Based Complementary Medicine (JEBCAM) has retracted a 2013 review on probiotics by an author from Turkey who patched the paper together from a variety of other sources — and then appears to have reused his own work elsewhere without attribution.
The article was written by Öner Özdemir, a pediatric allergy specialist at İstanbul Medeniyet University. According to the abstract: Continue reading Plagiarism spells demise of complementary medicine paper
A group of researchers from Italy has lost their 2010 paper in the Journal of Cellular Physiology for having plagiarized — in style.
The article, “Early Years of Biological Agents Therapy in Crohn’s Disease and Risk of the Human Polyomavirus JC Reactivation,” was led by Valeria Pietropaolo, of Sapienza University in Rome and the Sbarro Institute for Cancer Research and Molecular Medicine at Temple University in Philadelphia.
The paper has been cited 10 times, according to Thomson Scientific’s Web of Knowledge. The abstract, which is still available, reads:
Continue reading Plagiarism (and plenty of it) fells Crohn’s paper
The American Journal of Gastroenterology has retracted a 2011 article on colon cancer by a group of Cleveland Clinic researchers after finding “evidence” of plagiarism in the text.
The article, a review, was titled “Molecular Pathways Underlying IBD-Associated Colorectal Neoplasia: Therapeutic Implications,” and has been cited 16 times, according to Thomson Scientific’s Web of Knowledge.
Here’s the retraction notice: Continue reading Reverse peristalsis for gut journal which disgorges Cleveland Clinic paper for plagiarism
Does anyone know how to say “thrown under the bus” in Italian?
A group of researchers in Italy has retracted a paper after it became clear that they had duplicated some of their previous work. Or, as one of the senior authors put it, as a “young coworker” had reused their material.
Here’s the notice from Biologics: Targets and Therapy: Continue reading Author blames “young coworker” for duplication as paper is retracted
Coming back up?
Digestive Diseases and Sciences has retracted two papers for duplication.
The first paper, “Membrane-Bound Mucins and Mucin Terminal Glycans Expression in Idiopathic or Helicobacter pylori, NSAID Associated Peptic Ulcers,” was published in October 2012 by a group from Israel and the United States. It found that:
Cytoplasmic MUC17 staining was significantly decreased in the cases with idiopathic ulcer. The opposite was demonstrated for MUC1. This observation might be important, since different mucins with altered sialylation patterns likely differ in their protection efficiency against acid and pepsin.
But, as the retraction notice suggests, that much had been found before: Continue reading A double-bill from Digestive Diseases and Sciences, both for regurgitation — aka duplication
A group of Turkish researchers has had a paper retracted on how to treat the bacterium that cause ulcers after the journal’s editors found “issues related to the institutional review board approval” of the project.
Here’s the retraction notice from the Journal of Pediatric Gastroenterology and Nutrition: Continue reading IRB issues force retraction of ulcer bug bacteria paper
A group of nutrition researchers at the University of California, Davis has retracted their paper in the International Journal of Molecular Sciences for what they describe as a botched experiment involving mixed-up cultures.
The article, titled “Dextran Sulfate Sodium Inhibits Alanine Synthesis in Caco-2 Cells,” appeared in 2011 and was retracted in February 2012, although it just came to our attention.
According to the abstract:
Continue reading Bowel cell paper falls to culture confusion
Work from a prolific father-son team of liver researchers in Germany has come under scrutiny after accusations that they falsified data in a 2009 letter to the editor that appeared in the Journal of Hepatology.
The letter, retracted in the September issue (after an online notice in June), referred to a 2008 article in the journal by Axel Gressner, his son Olav, and their colleagues at University Hospital in Aachen in which the authors reported that doses of caffeine might be an effective treatment for liver fibrosis, scarring of the organ that results from chronic ailments such as cirrhosis or hepatitis.
Epidemiologic evidence has suggested that people who drink coffee are somewhat protected from liver fibrosis—although some experts dispute the purported connection—and the German group claimed to have been among the first to find a plausible molecular mechanism for the link. Their November 2008 paper on the subject has been cited 16 times, according to Thomson Scientific’s Web of Science, a hefty number for just 22 months.
In their follow-up letter, they went a step further, stating that injecting rats with caffeine blocked the expression of a key protein associated with growth of connective tissue necessary for the formation of liver scars.
But the evidence backing the letter appears to be far weaker than the researchers initially let on. Continue reading Liver spots: Hepatology journal yanks research letter on caffeine-fibrosis link, saying authors falsified data