Table 1.

This table shows the cytokines and hormones that showed significant elevations in various studies

Cytokines/Chemokines	PAIN	DIAGNOSIS	REFERENCE
TNF-α	Increased	Neuropathic Pain/CRPS	[6]
		Neuropathic Pain/CRPS	[17]
		Fibromyalgia	[18]
		Fibromyalgia	[19]
IL-1β	Increased	Tension Headache	[22]
		Neuropathic Pain/CRPS	[12]
IL-2	Increased	Neuropathic Pain/CRPS	[12]
IL-6	Increased	Fibromyalgia	[19]
		Neuropathic Pain/CRPS	[17]
		Tension Headache	[23]
		Chronic Constriction Injury	[13] [15]
IL-8	Increased	Fibromyalgia	[18]
		Fibromyalgia	[19]
		Tension Headache	[25]
			[24]
IL-33	Increased	Chronic Constriction Injury	[9]
CXCL1	Increased	Chronic Constriction Injury	[15]
CCL3	Increased	Chronic Constriction Injury	[7]
CCR5	Increased	Chronic Constriction Injury	[7]
IL-10	Decreased	Neuropathic Pain/CRPS	[20]
		Neuropathic Pain/CRPS	[12]
		Fibromyalgia	[18]
		Fibromyalgia	[19]
			[24]
IL-4	Decreased	CRPS	[10]
		Neuropathic Pain	[10]