Figure 2. Scatter plot of plasma ceramide concentrations in men aged 19 to 80 years. (A) Total ceramide levels in 80 male subjects included in the study. Pearson’s correlation is considered statistically significant at p < .05. (B) Average levels of individual ceramide species in men aged 19-54 years (n = 48, open bars) and 55-80 years (n = 32, closed bars). Results are expressed as mean