Table 2.

Concentrations, pg/mL (Mean ± SD) of cytokines in autologous protein solution

Authors	IL-1ra	sIL-1RII	IL-1β	sTNF-RII	TNFα
Kon et al41	33,482 ± 16,103	27,874 ± 12,087	23.4 ± 28.6	6052 ± 1643	0.6 ± 1.3
Hix et al61	63,740 ± 23,556	26,217 ± 6126	16.5 ± 25.5	6348 ± 1425	Below the range of the ELISA assay
King et al62	57,511 ± 24,272	20,121 ± 6654	20.3 ± 34.2	5,520 ± 1,174	2.6 ± 2.9

Note. IL, interleukin; TNF, tumour necrosis factor; ELISA, .