MAPT and Creutzfeldt Jacob disease: Interestingly, in the non-CJD group, protein 14-3-3 status correlated with PAR-2 CSF levels; however, this is most probably a biased observation since non-CJD cases with positive or weak protein 14-3-3 were also often associated with increased T-tau levels, which probably reflects neuronal damage rather than a relationship to PAR-2 mediated pathogenesis, although, it could also be involved in neuronal damage mechanisms in general.