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The expression of the neurotrophic growth factors and the inflammatory factors. (A) The relative expression of GDNF in UC+TBI group and TBI group. (B) The relative expression of BDNF in TBI group and UC+TBI group. (C) The content of IL-1β in TBI group and UC+TBI group. (D) The content of TNF-αin TBI group and UC+TBI group.∗ P < 0.05, ∗∗∗P < 0.001; 2-tailed Student t test. TBI, traumatic brain injury; UC-MSCs, umbilical cord-derived mesenchymal stem cells; IL-1β, interleukin-lβ.
