【Objective】To investigate the cyclooxygenase-2 protein expression and clinical significance in human laryngeal squamous cell carcinoma,at the same time,to investigate its expression in human laryngeal papilloma and vocal cord polyps.
Among the critical normal tissues,received mean value of maximum dose in 1% volume of spinal cord,brain stem,chiasm and optic nerve are 39 Gy,51 Gy,45 Gy and 42 Gy,respectively. Comparing with their objective tolerance doses,the remaining tolerance doses are 22%,15%,25% and 30%,respectively.
Sixty-seven eyes of visual nerve disease were tested with visual potential evoked by reversed images and contrasted with 168 eyes of healthy subjects. It was found that the incubation period of waves N_1P_2 and N_2 was delayed and the wave amplitude lowered markedly, indicating that visual evoked potential could be used as one of the objective in the diagnosis and observations of clinical therapeutic effects in the treatment of visual nerve disease.
the thresholds were decreased in 27 ears using the thresholds of ABR‘V’wave induced by 8 KHz click as objective index of auditory function,and a marked decrease of thresholds was found in 14 ears confirmed by 0.5,1,2,4,and 8 KHz subjective pure tone hearing test.
结果表明,注射催产素后,在以8 KHz click 诱发的听觉脑干诱发电位 V 波阈值为指标的客观测听中,有27耳听阈明显下降; 在以0,5K、1K、2K、4K 和8KHz 纯音主观测听中,有14耳听阈明显下降。