
Kang Zhang, a formerly high-profile geneticist at the University of California, San Diego, who resigned his post last July amidst an investigation into undisclosed ties to China, has retracted a paper because some of its images were taken from other researchers’ work.
The paper, “Impaired lipid metabolism by age-dependent DNA methylation alterations accelerates aging,” was submitted to the Proceedings of the National Academy of Sciences (PNAS) last fall, months after Zhang’s resignation. One of Zhang’s fellow corresponding authors, Jian-Kang Zhu, used the journal’s “Contributed Submissions” process, in which “An NAS member may contribute up to two of her or his own manuscripts for publication in PNAS each year.”
PNAS published the paper on February 6 of this year. But on February 18, authors of a different paper, in Aging Cell, sent the editors of PNAS a letter, writing:
Continue reading Former UCSD prof who resigned amid investigation into China ties retracts paper for ‘inadvertently misidentified’ images