The role of TRP family in Geniculate Ganglion

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Patients often complain of taste disorder and tongue numbness after middle ear surgery. In the present study, postoperative trigeminal sensation of the tongue was examined by Sennes-Weinstein sensory test (SW test) and two-point discrimination tests. There were no significant differences on SW test, two point discrimination tests or EGM although the threshold of each test was elevated after surgery. The expression of TRP family in Geniculate Ganglion was no significant after cholda tympanic nerve injury. There findings suggested that injury to the chorda tympani nerve during middle ear surgery induces trigeminal disorder together with taste disorder.