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. 2020 Jan 31;11:12. doi: 10.3389/fphys.2020.00012

FIGURE 2.

FIGURE 2

Examination of TG, DG, and CE lipids by unsaturation and chain length status in mTBI, PTSD, and mTBI + PTSD diagnostic groups with and without ε4 stratification. (A) There was a main effect of diagnosis for MUFA TG (p = 0.054). (B) There was a main effect of diagnosis in TG chain length 58 (p = 0.026). (C) There was an interaction of diagnosis with ε4 status for MUFA (p = 0.004) and PUFA (p = 0.041). (D) There was an interaction of diagnosis with ε4 status in TG chain lengths: ≤ 48 (p = 0.007), 54–55 (p = 0.011), and 56 (p = 0.014). (E) There was a main effect of diagnosis in SFA (p = 0.001), MUFA (p = 0.011), and PUFA DG (p = 0.03). (F) There was a main effect of diagnosis in DG chain length: ≤ 32 (p = 0.035), 34–36 (p = 0.001), and 38 (p = 0.002). (G) There was an interaction of diagnosis with ε4 status in SFA DG (p = 0.000208). (H) There was an interaction of diagnosis with ε4 status for DG chain length: ≤ 32 (p = 0.000415), 34–36 (p = 0.001), and 38 (p = 0.001). (I) No main effect or interaction effect were found significant for CE unsaturation states. (J) No main effect or interaction effect were found significant for CE chain length. Statistical analyses; MLM with LSD post hoc, p ≤ 0.05 cut-off. p ≤ 0.05, ∗∗p ≤ 0.01, ∗∗∗p ≤ 0.001 vs. control (A,B and E,F), ε4− and ε4+ respective controls (C,D, G,H, and I,J). TG, Triglycerides; DG, Diglycerides; CE, Cholesterol esters; SFA, saturated fatty acid; MUFA, Mono-unsaturated fatty acid; PUFA, Poly unsaturated fatty acid.