Further, there was a marginally significant enrichment of lipids containing the fatty acids 16:1, 18:1, and 20:3 in their structure (hypergeometric test, p = 1.91 × 10 −2 , 1.35 × 10 −2 and 4.79 × 10 −2 , correspondingly; Figure 2 d; Table S4 ).
Alterations at Five Weeks Post-Injury The NI response detected at 5 weeks post-injury showed an evident trend towards elevated levels of lipid abundances.
Moreover, while TGs, in general, were significantly increased in NI ( Figure 2 b,c), the TG compounds containing arachidonic acid showed a trend toward decreased abundances in NI ( Figure S3 ).