Category: aging & mental health

Authors retract 2007 PNAS paper on aging due to figure’s “unintentional anomalies”

pnas 2515The authors of a 2007 PNAS paper that provided molecular details for how calorie restriction may act on Sir2 enzymes to extend life are now retracting their research after discovering a figure was compromised by “several unintentional anomalies in the background image.”

According to study author David W. Piston at Vanderbilt University, first author Qinghong Zhang cut and pasted images together to beautify a figure showing how a form of sugar affects the expression of SIRT1, the mammalian version of the Sir2 enzyme: Continue reading Authors retract 2007 PNAS paper on aging due to figure’s “unintentional anomalies”

Double trouble: Psych journal prints PTSD paper twice

Aging & Mental Health “welcomes original contributions” to fill its pages.

Or not so original. Last November, the journal published a study by two California researchers which looked at the possible effects of post-traumatic stress disorder on physical well-being in older women – and found no evidence of such a link.

Six months later, the journal published the findings again.

It issued a retraction earlier this month, which included the following: Continue reading Double trouble: Psych journal prints PTSD paper twice