A) Neuronal cultures were treated with D3T (25 μM), tBHQ (10 μM, Aldrich) or sulforaphane (5 μM, Merck Biosciences) for 4 h followed by RNA extraction and q-RT-PCR analysis of Srxn1 and Sesn2 (normalized to GAPDH). *p<0.05 (Bonferonni two-tailed T-test, n=3-5). B) Western analysis of Srxn1 protein expression in extracts taken from neuronal cultures treated for 24 h with D3T (25 μM). *p<0.05 (n=6). C) Glial cultures were treated with D3T (25 μM) for 4 h followed by RNA extraction and q-RT-PCR analysis of Srxn1, Sesn2 and Hmox1 (normalized to GAPDH, *p<0.05, two-tailed T-test in this and subsequent experiments unless otherwise stated, n=6).