HSP90AA1 and infectious otitis media: A significant increase in the concentrations of HSP-90α was detected in the tissue homogenates collected from the ‘AOM group’ (0.53 ± 0.15 ng/mL; P = 0.007 × 10−7) when compared with those obtained from the ‘control group’ (0.18 ± 0.1 ng/mL).