The corresponding author has formally requested to retract the above-titled paper, which was published ahead of print on 10 April 2014. The following image manipulations were included in the original version of the work: 1) Fig. 1A and B: Molecular weight markers from one blot were paired up with lanes from another blot. 2) Fig. 1A: Lanes 5 and 7 (aldose reductase revealed with anti-tubulin and tubulin revealed with anti–aldose reductase) were exchanged in from another immunoblot analysis. 3) Fig. 1D: Immunoblot images do not represent the original image as a portion of a doublet of the tubulin band (at elution volume 4). The original source image was erased to show a single band. 4) Fig. 2A: The molecular weight marker lane has been extracted from a different blot, and the tubulin band was spliced in from another source and digitally altered with the eraser tool to provide a better picture.

The corresponding author apologizes to the readers of the journal for any inconvenience these issues may have caused.