RETRACTION: Differential effects of 24-hydroxycholesterol and 27-hydroxycholesterol on tyrosine hydroxylase and a-synuclein in human neuroblastoma SH-SY5Y cells (Retraction of Vol 107, Pg 1722, 2008)

The above article, published online on 15 October 2008 in Wiley Online Library (wileyonlinelibrary.com), has been retracted by agreement between the journal's Editor-in-Chief Andrew J. Lawrence, the International Society for Neurochemistry and John Wiley & Sons Ltd. The retraction has been agreed due to identification of image manipulation in Figure 4a, showing duplications of the '27-OHC' and '24-OHC+27-OHC' bands within the TH lane. The corresponding author and their institution failed to provide the original data upon request. As a result, the data and conclusions of the article are considered unreliable. The authors have been informed but did not respond to requests to approve the wording of this retraction notice.