Comparison of immune markers in ichthyosis subtypes, AD, psoriasis and controls using RT-PCR (A-W). mRNA log2 values were adjusted to hARP expression levels. Stars without bars denote comparison to controls. Stars above bars denote p-values with comparators defined by the bar. LSmean (log2 expression/hARP) ± SEM. +p<0.1, *p<0.05, **p<0.01, ***p<0.001.