CCL24 and major depressive disorder: Higher transcription of CCL24, the most significant difference revealed between subjects in our discovery cohort, again significantly differentiated MDD patients from controls (t = 2.394, d.f. = 23, p = 0.0125, d = 0.998) and BPD patients (t = 2.674, d.f. = 23, p = 0.007, d = 1.115) in the validation cohort, see Figure 1.