The Editor has retracted this article after concerns were raised about some of the data reported. Specifically, in Fig. 7 there is an area of overlap between panels G and K, and in Fig. 9 panels B and D duplicate each other. Additionally, the authors have subsequently stated that they did not receive ethics approval to carry out the reported animal work prior to commencing this research. The Editor no longer has confidence in the reliability of this article’s findings and conclusions.
Kai Hu and Bo Xiao did not respond to correspondence from the Publisher about this retraction. The Publisher was not able to confirm current contact details for the remaining authors.
Footnotes
The online version of the original article can be found at 10.1186/1471-2202-13-115
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Kai Hu and Yuan-Yuan Xie contributed equally to this work.