Table 3. Mean ABR thresholds of 8 cases of WT and TLR4−/− mice pre-and postoperatively.

Mice	Degree of pathological alteration inb			Total scores
	Inflammatory cells	Tissue proliferation	Tissue debris
WT	2.75 ± 0.46	2.50 ± 0.50	2.50 ± 0.71	7.75 ± 0.13
TLR2−/−	2.38 ± 0.52	2.50 ± 0.53	2.00 ± 0.51	6.86 ± 0.10
TLR4−/−	1.75 ± 0.71	2.00 ± 0.76	1.38 ± 0.48	5.13 ± 0.14