THE journal Nature has published a correction to a high-profile stem cell paper following questions raised by 快猫短视频.
In 2002, Catherine Verfaillie and her team described stem cells from mouse bone marrow that appeared to be as versatile as embryonic stem cells (Nature, vol 418, p 41). In 2006 快猫短视频 queried plots describing characteristics of the cells鈥� surfaces, and this year, after an inquiry by the University of Minnesota, Verfaillie wrote to Nature to caution that these results were flawed (快猫短视频, 17 February, p 12). Nature has now issued a correction, though it says the paper鈥檚 original conclusions still stand.
Further questions surround a 2001 paper in Blood (vol 98, p 2615), describing similar cells from human volunteers. This year 快猫短视频 revealed (24 March, p 12) that this contains images used in a US patent to describe other results. On 9 May Blood posted a warning about the apparent duplications, which it says are under review.
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