TF and migraine disorder: Migraine patients Interictal TF: 1.10 ± 1.27 ng/ml (vs. HC, p = 0.022) Interictal plasma: 6.32 ± 3.08 pg/ml (vs. HC, p = 0.528) Ictal, unmedicated TF: 1.92 ± 1.84 ng/ml (vs. interictal, p = 0.102) Ictal, medicated TF: 0.56 ± 0.47 ng/ml (vs. interictal, p = 0.011) HC TF: 0.75 ± 0.80 ng/ml Plasma: 6.57 ± 4.25 pg/ml