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Table 3

Biochemical pathways disturbed in Gulf War illness.
No.Pathway NameMeasured Metabolites in the Pathway (N)Expected Pathway Proportion (P = N/358)Expected Hits in Sample of 30 (P * 30)Observed Hits in the Top 30 MetabolitesFold Enrichment (Obs/Exp)Impact (Sum VIP Score)Fraction of Impact Explained (% of 63.0)IncreasedDecreased
1Ceramide Metabolism*310.092.6114.223.938%110
2Phospholipid Metabolism*560.164.751.110.617%41
3Sphingomyelin Metabolism*360.103.041.38.013%40
4Purine Metabolism180.051.542.77.612%04
5Pyrimidine Metabolism90.030.822.74.57%11
6Endocannabinoid Metabolism*40.010.326.04.16%02
7Eicosanoid and Resolvins*70.020.611.72.34%01
8Branch Chain Amino Acids80.020.711.52.03%10
Subtotal:219
Total:30

*Lipid pathways.