Table 2.

Correlation between TLR2/TLR4 expression in neutrophils and monocytes with levels of proinflammatory markers.

	TLR2 neutrophils	TLR2 monocytes	TLR4 neutrophils	TLR4 monocytes
IL-1β	0.695 (p < 0.0001)	0.737 (p < 0.0001)	0.183 (p = 0.161)	0.269 (p = 0.038)
IL-6	0.535 (p < 0.0001)	0.614 (p < 0.0001)	0.237 (p = 0.069)	0.328 (p = 0.010)
TNF-α	0.583 (p < 0.0001)	0.829 (p < 0.0001)	0.089 (p = 0.501)	0.272 (p = 0.036)
MMP-9	0.594 (p < 0.0001)	0.724 (p < 0.0001)	0.275 (p = 0.034)	0.442 (p < 0.0001)

IL = interleukin; KC = keratoconus; MMP-9 = matrix metalloproteinase 9; TLR = Toll-like receptor; TNF-α = Tumor necrosis factor alpha.