Fig. 2. H₂O₂-induced cell loss of human skin fibroblasts from non-AD and AD patients. Cell viability was determined by measuring LDH activity in the conditioned media 24 hours after H₂O₂ exposure. Each point represents an individual sample. Values are expressed as a percentage increase over basal values. The insert shows the means±s.e.m. from at least three different experiments for each sample using at least three separate cell preparations. ^*P<0.01 versus non-AD.