Year Authors Disease Sample Inflammatory Findings
2005 Alexander et al. Complex Regional Pain Syndromes Cerebral Spinal Fluid Increased IL-6 and IL-1β
2007 Uceyler, et al. Complex Regional Pain Syndromes Serum Increased IL-2 and TNF-α. Decreased anti-inflammatory IL-4 and IL-10
2009 Doupis, et al. Painful Diabetic Peripheral Neuropathy Serum Higher levels of TNF-α in painful versus painless diabetic peripheral neuropathy
2009 Lee, et al. Degenerative Disc Disease Intervertebral Disc Higher levels of TNF-α and IL-8
2010 Kraychete, et al. Herniated Disc Serum Greater levels of IL-6 and TNF-α
2010 Cuellar, et al. Degenerative Disc Disease Disc Fluid Increased IFN-gamma
2010 Kim, et al. Osteoarthritis Cartilage TNF-α and IL-1β caused more damage to mitochondria of OA tissue than normal tissue
2011 Levinger, et al. Osteoarthritis Muscle Higher levels of IL-6, IL-1β, and TNF-α
2011 Purwata, et al. Painful Diabetic Peripheral Neuropathy Serum Higher levels of   TNF-α
2011 Orita, et al. Osteoarthritis Synovial Fluid Higher levels of IL-6 and TNF-α
IL=interleukin, TNF=tumor necrosis factor
Table 2: Human Studies and Inflammation.