Laboratory findings associated with west nile virus are nonspecific and include an elevated white blood cell count or elevated inflammatory markers like CRP and ESR.
But I'm not aware of any that show it going in the opposite direction, where substituting in polyunsaturated fats actually raises inflammatory markers like CRP and IL-6, those sorts of things.
This fits in with patients that I see in my clinic who suffer with obesity and are enquiring about bariatric surgery: all of these patients will have a positive blood test for inflammation (called a CRP test).