Statement of retraction. Cardioprotective effect of resveratrol via HO-1 expression involves p38 map kinase and PI-3-kinase signaling, but does not involve NFkB.

Free Radical Research, October 2006; 40(10): 1066-1075 (Received 30 March 2006) The Editor, Editorial Board and Publisher of Free Radical Research hereby retract the following article from publication in the journal: SAMARJIT DAS, CESAR G. FRAGA & DIPAK K. DAS.

Optic nerve head drusen. High-resolution computed tomographic approach.

Optic nerve head drusen are rare, inherited concretions, which are almost always calcified; their appearance must be known because they represent one of the major causes of pseudopapilledema. The computed tomographic (CT) scan can show small and buried drusen, which are sometimes difficult to diagnose by the ophthalmoscopic examination. Four cases of drusen (two bilateral and two unilateral) were confirmed or diagnosed by high-resolution CT.